coreos-cloudinit: bump to v1.3.3

Make sure public ssh key is not empty from CloudSigma's server context

.travis.yml

@@ -1,10 +1,17 @@
 language: go
-go:
-  - 1.3
-  - 1.2
+sudo: false
+matrix:
+  include:
+    - go: 1.4
+      env: TOOLS_CMD=golang.org/x/tools/cmd
+    - go: 1.3
+      env: TOOLS_CMD=code.google.com/p/go.tools/cmd
+    - go: 1.2
+      env: TOOLS_CMD=code.google.com/p/go.tools/cmd
 
 install:
- - go get code.google.com/p/go.tools/cmd/cover
+ - go get ${TOOLS_CMD}/cover
+ - go get ${TOOLS_CMD}/vet
 
 script:
  - ./test

Documentation/cloud-config.md

@@ -1,6 +1,8 @@
 # Using Cloud-Config
 
-CoreOS allows you to declaratively customize various OS-level items, such as network configuration, user accounts, and systemd units. This document describes the full list of items we can configure. The `coreos-cloudinit` program uses these files as it configures the OS after startup or during runtime. Your cloud-config is processed during each boot.
+CoreOS allows you to declaratively customize various OS-level items, such as network configuration, user accounts, and systemd units. This document describes the full list of items we can configure. The `coreos-cloudinit` program uses these files as it configures the OS after startup or during runtime.
+
+Your cloud-config is processed during each boot. Invalid cloud-config won't be processed but will be logged in the journal. You can validate your cloud-config with the [CoreOS validator]({{site.url}}/validate) or by running `coreos-cloudinit -validate`.
 
 ## Configuration File
 
@@ -16,7 +18,7 @@ We've designed our implementation to allow the same cloud-config file to work ac
 
 The cloud-config file uses the [YAML][yaml] file format, which uses whitespace and new-lines to delimit lists, associative arrays, and values.
 
-A cloud-config file should contain `#cloud-config`, followed by an associative array which has zero or more of the following keys:
+A cloud-config file must contain `#cloud-config`, followed by an associative array which has zero or more of the following keys:
 
 - `coreos`
 - `ssh_authorized_keys`
@@ -46,13 +48,13 @@ If the platform environment supports the templating feature of coreos-cloudinit
 #cloud-config
 
 coreos:
-    etcd:
-        name: node001
-	# generate a new token for each unique cluster from https://discovery.etcd.io/new
-        discovery: https://discovery.etcd.io/<token>
-	# multi-region and multi-cloud deployments need to use $public_ipv4
-        addr: $public_ipv4:4001
-        peer-addr: $private_ipv4:7001
+  etcd:
+      name: node001
+      # generate a new token for each unique cluster from https://discovery.etcd.io/new
+      discovery: https://discovery.etcd.io/<token>
+      # multi-region and multi-cloud deployments need to use $public_ipv4
+      addr: $public_ipv4:4001
+      peer-addr: $private_ipv4:7001
 ```
 
 ...will generate a systemd unit drop-in like this:
@@ -66,7 +68,6 @@ Environment="ETCD_PEER_ADDR=192.0.2.13:7001"
 ```
 
 For more information about the available configuration parameters, see the [etcd documentation][etcd-config].
-Note that hyphens in the coreos.etcd.* keys are mapped to underscores.
 
 _Note: The `$private_ipv4` and `$public_ipv4` substitution variables referenced in other documents are only supported on Amazon EC2, Google Compute Engine, OpenStack, Rackspace, DigitalOcean, and Vagrant._
 
@@ -80,9 +81,9 @@ The `coreos.fleet.*` parameters work very similarly to `coreos.etcd.*`, and allo
 #cloud-config
 
 coreos:
-    fleet:
-        public-ip: $public_ipv4
-        metadata: region=us-west
+  fleet:
+      public-ip: $public_ipv4
+      metadata: region=us-west
 ```
 
 ...will generate a systemd unit drop-in like this:
@@ -97,6 +98,64 @@ For more information on fleet configuration, see the [fleet documentation][fleet
 
 [fleet-config]: https://github.com/coreos/fleet/blob/master/Documentation/deployment-and-configuration.md#configuration
 
+#### flannel
+
+The `coreos.flannel.*` parameters also work very similarly to `coreos.etcd.*`
+and `coreos.fleet.*`. They can be used to set environment variables for
+flanneld. For example, the following cloud-config...
+
+```yaml
+#cloud-config
+
+coreos:
+  flannel:
+      etcd_prefix: /coreos.com/network2
+```
+
+...will generate a systemd unit drop-in like so:
+
+```
+[Service]
+Environment="FLANNELD_ETCD_PREFIX=/coreos.com/network2"
+```
+
+List of flannel configuration parameters:
+
+- **etcd_endpoints**: Comma separated list of etcd endpoints
+- **etcd_cafile**: Path to CA file used for TLS communication with etcd
+- **etcd_certfile**: Path to certificate file used for TLS communication with etcd
+- **etcd_keyfile**: Path to private key file used for TLS communication with etcd
+- **etcd_prefix**: Etcd prefix path to be used for flannel keys
+- **ip_masq**: Install IP masquerade rules for traffic outside of flannel subnet
+- **subnet_file**: Path to flannel subnet file to write out
+- **interface**: Interface (name or IP) that should be used for inter-host communication
+
+[flannel-readme]: https://github.com/coreos/flannel/blob/master/README.md
+
+#### locksmith
+
+The `coreos.locksmith.*` parameters can be used to set environment variables
+for locksmith. For example, the following cloud-config...
+
+```yaml
+#cloud-config
+
+coreos:
+  locksmith:
+      endpoint: example.com:4001
+```
+
+...will generate a systemd unit drop-in like so:
+
+```
+[Service]
+Environment="LOCKSMITHD_ENDPOINT=example.com:4001"
+```
+
+For the complete list of locksmith configuration parameters, see the [locksmith documentation][locksmith-readme].
+
+[locksmith-readme]: https://github.com/coreos/locksmith/blob/master/README.md
+
 #### update
 
 The `coreos.update.*` parameters manipulate settings related to how CoreOS instances are updated.
@@ -109,9 +168,12 @@ The `reboot-strategy` parameter also affects the behaviour of [locksmith](https:
   - _etcd-lock_: Reboot after first taking a distributed lock in etcd, this guarantees that only one host will reboot concurrently and that the cluster will remain available during the update.
   - _best-effort_ - If etcd is running, "etcd-lock", otherwise simply "reboot".
   - _off_ - Disable rebooting after updates are applied (not recommended).
-- **server**: is the omaha endpoint URL which will be queried for updates.
+- **server**: The location of the [CoreUpdate][coreupdate] server which will be queried for updates. Also known as the [omaha][omaha-docs] server endpoint.
 - **group**:  signifies the channel which should be used for automatic updates.  This value defaults to the version of the image initially downloaded. (one of "master", "alpha", "beta", "stable")
 
+[coreupdate]: https://coreos.com/products/coreupdate
+[omaha-docs]: https://coreos.com/docs/coreupdate/custom-apps/coreupdate-protocol/
+
 *Note: cloudinit will only manipulate the locksmith unit file in the systemd runtime directory (`/run/systemd/system/locksmithd.service`). If any manual modifications are made to an overriding unit configuration file (e.g. `/etc/systemd/system/locksmithd.service`), cloudinit will no longer be able to control the locksmith service unit.*
 
 ##### Example
@@ -130,11 +192,15 @@ The `coreos.units.*` parameters define a list of arbitrary systemd units to star
 Each item is an object with the following fields:
 
 - **name**: String representing unit's name. Required.
-- **runtime**: Boolean indicating whether or not to persist the unit across reboots. This is analogous to the `--runtime` argument to `systemctl enable`. Default value is false.
-- **enable**: Boolean indicating whether or not to handle the [Install] section of the unit file. This is similar to running `systemctl enable <name>`. Default value is false.
+- **runtime**: Boolean indicating whether or not to persist the unit across reboots. This is analogous to the `--runtime` argument to `systemctl enable`. The default value is false.
+- **enable**: Boolean indicating whether or not to handle the [Install] section of the unit file. This is similar to running `systemctl enable <name>`. The default value is false.
 - **content**: Plaintext string representing entire unit file. If no value is provided, the unit is assumed to exist already.
-- **command**: Command to execute on unit: start, stop, reload, restart, try-restart, reload-or-restart, reload-or-try-restart. Default value is restart.
-- **mask**: Whether to mask the unit file by symlinking it to `/dev/null` (analogous to `systemctl mask <name>`). Note that unlike `systemctl mask`, **this will destructively remove any existing unit file** located at `/etc/systemd/system/<unit>`, to ensure that the mask succeeds. Default value is false.
+- **command**: Command to execute on unit: start, stop, reload, restart, try-restart, reload-or-restart, reload-or-try-restart. The default behavior is to not execute any commands.
+- **mask**: Whether to mask the unit file by symlinking it to `/dev/null` (analogous to `systemctl mask <name>`). Note that unlike `systemctl mask`, **this will destructively remove any existing unit file** located at `/etc/systemd/system/<unit>`, to ensure that the mask succeeds. The default value is false.
+- **drop-ins**: A list of unit drop-ins with the following fields:
+  - **name**: String representing unit's name. Required.
+  - **content**: Plaintext string representing entire file. Required.
+
 
 **NOTE:** The command field is ignored for all network, netdev, and link units. The systemd-networkd.service unit will be restarted in their place.
 
@@ -146,19 +212,34 @@ Write a unit to disk, automatically starting it.
 #cloud-config
 
 coreos:
-    units:
-      - name: docker-redis.service
-        command: start
-        content: |
-          [Unit]
-          Description=Redis container
-          Author=Me
-          After=docker.service
+  units:
+    - name: docker-redis.service
+      command: start
+      content: |
+        [Unit]
+        Description=Redis container
+        Author=Me
+        After=docker.service
 
-          [Service]
-          Restart=always
-          ExecStart=/usr/bin/docker start -a redis_server
-          ExecStop=/usr/bin/docker stop -t 2 redis_server
+        [Service]
+        Restart=always
+        ExecStart=/usr/bin/docker start -a redis_server
+        ExecStop=/usr/bin/docker stop -t 2 redis_server
+```
+
+Add the DOCKER_OPTS environment variable to docker.service.
+
+```yaml
+#cloud-config
+
+coreos:
+  units:
+    - name: docker.service
+      drop-ins:
+        - name: 50-insecure-registry.conf
+          content: |
+            [Service]
+            Environment=DOCKER_OPTS='--insecure-registry="10.0.1.0/24"'
 ```
 
 Start the built-in `etcd` and `fleet` services:
@@ -167,11 +248,11 @@ Start the built-in `etcd` and `fleet` services:
 #cloud-config
 
 coreos:
-    units:
-      - name: etcd.service
-        command: start
-      - name: fleet.service
-        command: start
+  units:
+    - name: etcd.service
+      command: start
+    - name: fleet.service
+      command: start
 ```
 
 ### ssh_authorized_keys
@@ -213,7 +294,8 @@ All but the `passwd` and `ssh-authorized-keys` fields will be ignored if the use
 - **groups**: Add user to these additional groups
 - **no-user-group**: Boolean. Skip default group creation.
 - **ssh-authorized-keys**: List of public SSH keys to authorize for this user
-- **coreos-ssh-import-github**: Authorize SSH keys from Github user
+- **coreos-ssh-import-github**: Authorize SSH keys from GitHub user
+- **coreos-ssh-import-github-users**: Authorize SSH keys from a list of GitHub users
 - **coreos-ssh-import-url**: Authorize SSH keys imported from a url endpoint.
 - **system**: Create the user as a system user. No home directory will be created.
 - **no-log-init**: Boolean. Skip initialization of lastlog and faillog databases.
@@ -303,11 +385,13 @@ Each item in the list may have the following keys:
 
 - **path**: Absolute location on disk where contents should be written
 - **content**: Data to write at the provided `path`
-- **permissions**: String representing file permissions in octal notation (i.e. '0644')
+- **permissions**: Integer representing file permissions, typically in octal notation (i.e. 0644)
 - **owner**: User and group that should own the file written to disk. This is equivalent to the `<user>:<group>` argument to `chown <user>:<group> <path>`.
+- **encoding**: Optional. The encoding of the data in content. If not specified this defaults to the yaml document encoding (usually utf-8). Supported encoding types are:
+    - **b64, base64**: Base64 encoded content
+    - **gz, gzip**: gzip encoded content, for use with the !!binary tag
+    - **gz+b64, gz+base64, gzip+b64, gzip+base64**: Base64 encoded gzip content
 
-Explicitly not implemented is the **encoding** attribute.
-The **content** field must represent exactly what should be written to disk.
 
 ```yaml
 #cloud-config
@@ -322,6 +406,24 @@ write_files:
     owner: root
     content: |
       Good news, everyone!
+  - path: /tmp/like_this
+    permissions: 0644
+    owner: root
+    encoding: gzip
+    content: !!binary |
+      H4sIAKgdh1QAAwtITM5WyK1USMqvUCjPLMlQSMssS1VIya9KzVPIySwszS9SyCpNLwYARQFQ5CcAAAA=
+  - path: /tmp/or_like_this
+    permissions: 0644
+    owner: root
+    encoding: gzip+base64
+    content: |
+      H4sIAKgdh1QAAwtITM5WyK1USMqvUCjPLMlQSMssS1VIya9KzVPIySwszS9SyCpNLwYARQFQ5CcAAAA=
+  - path: /tmp/todolist
+    permissions: 0644
+    owner: root
+    encoding: base64
+    content: |
+      UGFjayBteSBib3ggd2l0aCBmaXZlIGRvemVuIGxpcXVvciBqdWdz
 ```
 
 ### manage_etc_hosts

Godeps/Godeps.json

@@ -0,0 +1,34 @@
+{
+	"ImportPath": "github.com/coreos/coreos-cloudinit",
+	"GoVersion": "go1.3.3",
+	"Packages": [
+		"./..."
+	],
+	"Deps": [
+		{
+			"ImportPath": "github.com/cloudsigma/cepgo",
+			"Rev": "1bfc4895bf5c4d3b599f3f6ee142299488c8739b"
+		},
+		{
+			"ImportPath": "github.com/coreos/go-systemd/dbus",
+			"Rev": "4fbc5060a317b142e6c7bfbedb65596d5f0ab99b"
+		},
+		{
+			"ImportPath": "github.com/coreos/yaml",
+			"Rev": "6b16a5714269b2f70720a45406b1babd947a17ef"
+		},
+		{
+			"ImportPath": "github.com/dotcloud/docker/pkg/netlink",
+			"Comment": "v0.11.1-359-g55d41c3e21e1",
+			"Rev": "55d41c3e21e1593b944c06196ffb2ac57ab7f653"
+		},
+		{
+			"ImportPath": "github.com/guelfey/go.dbus",
+			"Rev": "f6a3a2366cc39b8479cadc499d3c735fb10fbdda"
+		},
+		{
+			"ImportPath": "github.com/tarm/goserial",
+			"Rev": "cdabc8d44e8e84f58f18074ae44337e1f2f375b9"
+		}
+	]
+}

Godeps/Readme

@@ -0,0 +1,5 @@
+This directory tree is generated automatically by godep.
+
+Please do not edit.
+
+See https://github.com/tools/godep for more information.

Godeps/_workspace/.gitignore

@@ -0,0 +1,2 @@
+/pkg
+/bin

Godeps/_workspace/src/github.com/cloudsigma/cepgo/.gitignore

@@ -0,0 +1,23 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test

Godeps/_workspace/src/github.com/cloudsigma/cepgo/cepgo.go

@@ -48,7 +48,7 @@ import (
 	"fmt"
 	"runtime"
 
-	"github.com/coreos/coreos-cloudinit/third_party/github.com/tarm/goserial"
+	"github.com/coreos/coreos-cloudinit/Godeps/_workspace/src/github.com/tarm/goserial"
 )
 
 const (

Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/dbus.go

@@ -23,7 +23,7 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/coreos/coreos-cloudinit/third_party/github.com/guelfey/go.dbus"
+	"github.com/coreos/coreos-cloudinit/Godeps/_workspace/src/github.com/guelfey/go.dbus"
 )
 
 const signalBuffer = 100

Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/methods.go

@@ -18,7 +18,7 @@ package dbus
 
 import (
 	"errors"
-	"github.com/coreos/coreos-cloudinit/third_party/github.com/guelfey/go.dbus"
+	"github.com/coreos/coreos-cloudinit/Godeps/_workspace/src/github.com/guelfey/go.dbus"
 )
 
 func (c *Conn) initJobs() {
@@ -208,7 +208,7 @@ func (c *Conn) SetUnitProperties(name string, runtime bool, properties ...Proper
 }
 
 func (c *Conn) GetUnitTypeProperty(unit string, unitType string, propertyName string) (*Property, error) {
-	return c.getProperty(unit, "org.freedesktop.systemd1." + unitType, propertyName)
+	return c.getProperty(unit, "org.freedesktop.systemd1."+unitType, propertyName)
 }
 
 // ListUnits returns an array with all currently loaded units. Note that

Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/methods_test.go

@@ -18,7 +18,7 @@ package dbus
 
 import (
 	"fmt"
-	"github.com/coreos/coreos-cloudinit/third_party/github.com/guelfey/go.dbus"
+	"github.com/coreos/coreos-cloudinit/Godeps/_workspace/src/github.com/guelfey/go.dbus"
 	"math/rand"
 	"os"
 	"path/filepath"

Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/properties.go

@@ -17,7 +17,7 @@ limitations under the License.
 package dbus
 
 import (
-	"github.com/coreos/coreos-cloudinit/third_party/github.com/guelfey/go.dbus"
+	"github.com/coreos/coreos-cloudinit/Godeps/_workspace/src/github.com/guelfey/go.dbus"
 )
 
 // From the systemd docs:

Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/subscription.go

@@ -20,7 +20,7 @@ import (
 	"errors"
 	"time"
 
-	"github.com/coreos/coreos-cloudinit/third_party/github.com/guelfey/go.dbus"
+	"github.com/coreos/coreos-cloudinit/Godeps/_workspace/src/github.com/guelfey/go.dbus"
 )
 
 const (
@@ -101,7 +101,7 @@ func (c *Conn) SubscribeUnits(interval time.Duration) (<-chan map[string]*UnitSt
 // SubscribeUnitsCustom is like SubscribeUnits but lets you specify the buffer
 // size of the channels, the comparison function for detecting changes and a filter
 // function for cutting down on the noise that your channel receives.
-func (c *Conn) SubscribeUnitsCustom(interval time.Duration, buffer int, isChanged func(*UnitStatus, *UnitStatus) bool, filterUnit func (string) bool) (<-chan map[string]*UnitStatus, <-chan error) {
+func (c *Conn) SubscribeUnitsCustom(interval time.Duration, buffer int, isChanged func(*UnitStatus, *UnitStatus) bool, filterUnit func(string) bool) (<-chan map[string]*UnitStatus, <-chan error) {
 	old := make(map[string]*UnitStatus)
 	statusChan := make(chan map[string]*UnitStatus, buffer)
 	errChan := make(chan error, buffer)

Godeps/_workspace/src/github.com/coreos/yaml/LICENSE

@@ -1,3 +1,6 @@
+
+Copyright (c) 2011-2014 - Canonical Inc.
+
 This software is licensed under the LGPLv3, included below.
 
 As a special exception to the GNU Lesser General Public License version 3

Godeps/_workspace/src/github.com/coreos/yaml/README.md

@@ -1,3 +1,6 @@
+Note: This is a fork of https://github.com/go-yaml/yaml. The following README
+doesn't necessarily apply to this fork.
+
 # YAML support for the Go language
 
 Introduction
@@ -12,10 +15,10 @@ C library to parse and generate YAML data quickly and reliably.
 Compatibility
 -------------
 
-The yaml package is almost compatible with YAML 1.1, including support for
-anchors, tags, etc. There are still a few missing bits, such as document
-merging, base-60 floats (huh?), and multi-document unmarshalling. These
-features are not hard to add, and will be introduced as necessary.
+The yaml package supports most of YAML 1.1 and 1.2, including support for
+anchors, tags, map merging, etc. Multi-document unmarshalling is not yet
+implemented, and base-60 floats from YAML 1.1 are purposefully not
+supported since they're a poor design and are gone in YAML 1.2.
 
 Installation and usage
 ----------------------

Godeps/_workspace/src/github.com/coreos/yaml/decode.go

@@ -1,6 +1,8 @@
 package yaml
 
 import (
+	"encoding/base64"
+	"fmt"
 	"reflect"
 	"strconv"
 	"time"
@@ -28,13 +30,15 @@ type node struct {
 // Parser, produces a node tree out of a libyaml event stream.
 
 type parser struct {
-	parser yaml_parser_t
-	event  yaml_event_t
-	doc    *node
+	parser    yaml_parser_t
+	event     yaml_event_t
+	doc       *node
+	transform transformString
 }
 
-func newParser(b []byte) *parser {
-	p := parser{}
+func newParser(b []byte, t transformString) *parser {
+	p := parser{transform: t}
+
 	if !yaml_parser_initialize(&p.parser) {
 		panic("Failed to initialize YAML emitter")
 	}
@@ -63,7 +67,7 @@ func (p *parser) destroy() {
 func (p *parser) skip() {
 	if p.event.typ != yaml_NO_EVENT {
 		if p.event.typ == yaml_STREAM_END_EVENT {
-			panic("Attempted to go past the end of stream. Corrupted value?")
+			fail("Attempted to go past the end of stream. Corrupted value?")
 		}
 		yaml_event_delete(&p.event)
 	}
@@ -89,7 +93,7 @@ func (p *parser) fail() {
 	} else {
 		msg = "Unknown problem parsing YAML content"
 	}
-	panic(where + msg)
+	fail(where + msg)
 }
 
 func (p *parser) anchor(n *node, anchor []byte) {
@@ -114,10 +118,9 @@ func (p *parser) parse() *node {
 		// Happens when attempting to decode an empty buffer.
 		return nil
 	default:
-		panic("Attempted to parse unknown event: " +
-			strconv.Itoa(int(p.event.typ)))
+		panic("Attempted to parse unknown event: " + strconv.Itoa(int(p.event.typ)))
 	}
-	panic("Unreachable")
+	panic("unreachable")
 }
 
 func (p *parser) node(kind int) *node {
@@ -135,8 +138,7 @@ func (p *parser) document() *node {
 	p.skip()
 	n.children = append(n.children, p.parse())
 	if p.event.typ != yaml_DOCUMENT_END_EVENT {
-		panic("Expected end of document event but got " +
-			strconv.Itoa(int(p.event.typ)))
+		panic("Expected end of document event but got " + strconv.Itoa(int(p.event.typ)))
 	}
 	p.skip()
 	return n
@@ -175,7 +177,10 @@ func (p *parser) mapping() *node {
 	p.anchor(n, p.event.anchor)
 	p.skip()
 	for p.event.typ != yaml_MAPPING_END_EVENT {
-		n.children = append(n.children, p.parse(), p.parse())
+		key := p.parse()
+		key.value = p.transform(key.value)
+		value := p.parse()
+		n.children = append(n.children, key, value)
 	}
 	p.skip()
 	return n
@@ -218,7 +223,7 @@ func (d *decoder) setter(tag string, out *reflect.Value, good *bool) (set func()
 			var arg interface{}
 			*out = reflect.ValueOf(&arg).Elem()
 			return func() {
-				*good = setter.SetYAML(tag, arg)
+				*good = setter.SetYAML(shortTag(tag), arg)
 			}
 		}
 	}
@@ -226,7 +231,7 @@ func (d *decoder) setter(tag string, out *reflect.Value, good *bool) (set func()
 	for again {
 		again = false
 		setter, _ := (*out).Interface().(Setter)
-		if tag != "!!null" || setter != nil {
+		if tag != yaml_NULL_TAG || setter != nil {
 			if pv := (*out); pv.Kind() == reflect.Ptr {
 				if pv.IsNil() {
 					*out = reflect.New(pv.Type().Elem()).Elem()
@@ -242,7 +247,7 @@ func (d *decoder) setter(tag string, out *reflect.Value, good *bool) (set func()
 			var arg interface{}
 			*out = reflect.ValueOf(&arg).Elem()
 			return func() {
-				*good = setter.SetYAML(tag, arg)
+				*good = setter.SetYAML(shortTag(tag), arg)
 			}
 		}
 	}
@@ -279,10 +284,10 @@ func (d *decoder) document(n *node, out reflect.Value) (good bool) {
 func (d *decoder) alias(n *node, out reflect.Value) (good bool) {
 	an, ok := d.doc.anchors[n.value]
 	if !ok {
-		panic("Unknown anchor '" + n.value + "' referenced")
+		fail("Unknown anchor '" + n.value + "' referenced")
 	}
 	if d.aliases[n.value] {
-		panic("Anchor '" + n.value + "' value contains itself")
+		fail("Anchor '" + n.value + "' value contains itself")
 	}
 	d.aliases[n.value] = true
 	good = d.unmarshal(an, out)
@@ -290,23 +295,50 @@ func (d *decoder) alias(n *node, out reflect.Value) (good bool) {
 	return good
 }
 
+var zeroValue reflect.Value
+
+func resetMap(out reflect.Value) {
+	for _, k := range out.MapKeys() {
+		out.SetMapIndex(k, zeroValue)
+	}
+}
+
 var durationType = reflect.TypeOf(time.Duration(0))
 
 func (d *decoder) scalar(n *node, out reflect.Value) (good bool) {
 	var tag string
 	var resolved interface{}
 	if n.tag == "" && !n.implicit {
-		tag = "!!str"
+		tag = yaml_STR_TAG
 		resolved = n.value
 	} else {
 		tag, resolved = resolve(n.tag, n.value)
+		if tag == yaml_BINARY_TAG {
+			data, err := base64.StdEncoding.DecodeString(resolved.(string))
+			if err != nil {
+				fail("!!binary value contains invalid base64 data")
+			}
+			resolved = string(data)
+		}
 	}
 	if set := d.setter(tag, &out, &good); set != nil {
 		defer set()
 	}
+	if resolved == nil {
+		if out.Kind() == reflect.Map && !out.CanAddr() {
+			resetMap(out)
+		} else {
+			out.Set(reflect.Zero(out.Type()))
+		}
+		good = true
+		return
+	}
 	switch out.Kind() {
 	case reflect.String:
-		if resolved != nil {
+		if tag == yaml_BINARY_TAG {
+			out.SetString(resolved.(string))
+			good = true
+		} else if resolved != nil {
 			out.SetString(n.value)
 			good = true
 		}
@@ -380,17 +412,11 @@ func (d *decoder) scalar(n *node, out reflect.Value) (good bool) {
 			good = true
 		}
 	case reflect.Ptr:
-		switch resolved.(type) {
-		case nil:
-			out.Set(reflect.Zero(out.Type()))
+		if out.Type().Elem() == reflect.TypeOf(resolved) {
+			elem := reflect.New(out.Type().Elem())
+			elem.Elem().Set(reflect.ValueOf(resolved))
+			out.Set(elem)
 			good = true
-		default:
-			if out.Type().Elem() == reflect.TypeOf(resolved) {
-				elem := reflect.New(out.Type().Elem())
-				elem.Elem().Set(reflect.ValueOf(resolved))
-				out.Set(elem)
-				good = true
-			}
 		}
 	}
 	return good
@@ -404,7 +430,7 @@ func settableValueOf(i interface{}) reflect.Value {
 }
 
 func (d *decoder) sequence(n *node, out reflect.Value) (good bool) {
-	if set := d.setter("!!seq", &out, &good); set != nil {
+	if set := d.setter(yaml_SEQ_TAG, &out, &good); set != nil {
 		defer set()
 	}
 	var iface reflect.Value
@@ -433,7 +459,7 @@ func (d *decoder) sequence(n *node, out reflect.Value) (good bool) {
 }
 
 func (d *decoder) mapping(n *node, out reflect.Value) (good bool) {
-	if set := d.setter("!!map", &out, &good); set != nil {
+	if set := d.setter(yaml_MAP_TAG, &out, &good); set != nil {
 		defer set()
 	}
 	if out.Kind() == reflect.Struct {
@@ -465,6 +491,13 @@ func (d *decoder) mapping(n *node, out reflect.Value) (good bool) {
 		}
 		k := reflect.New(kt).Elem()
 		if d.unmarshal(n.children[i], k) {
+			kkind := k.Kind()
+			if kkind == reflect.Interface {
+				kkind = k.Elem().Kind()
+			}
+			if kkind == reflect.Map || kkind == reflect.Slice {
+				fail(fmt.Sprintf("invalid map key: %#v", k.Interface()))
+			}
 			e := reflect.New(et).Elem()
 			if d.unmarshal(n.children[i+1], e) {
 				out.SetMapIndex(k, e)
@@ -511,28 +544,28 @@ func (d *decoder) merge(n *node, out reflect.Value) {
 	case aliasNode:
 		an, ok := d.doc.anchors[n.value]
 		if ok && an.kind != mappingNode {
-			panic(wantMap)
+			fail(wantMap)
 		}
 		d.unmarshal(n, out)
 	case sequenceNode:
 		// Step backwards as earlier nodes take precedence.
-		for i := len(n.children)-1; i >= 0; i-- {
+		for i := len(n.children) - 1; i >= 0; i-- {
 			ni := n.children[i]
 			if ni.kind == aliasNode {
 				an, ok := d.doc.anchors[ni.value]
 				if ok && an.kind != mappingNode {
-					panic(wantMap)
+					fail(wantMap)
 				}
 			} else if ni.kind != mappingNode {
-				panic(wantMap)
+				fail(wantMap)
 			}
 			d.unmarshal(ni, out)
 		}
 	default:
-		panic(wantMap)
+		fail(wantMap)
 	}
 }
 
 func isMerge(n *node) bool {
-	return n.kind == scalarNode && n.value == "<<" && (n.implicit == true || n.tag == "!!merge" || n.tag == "tag:yaml.org,2002:merge")
+	return n.kind == scalarNode && n.value == "<<" && (n.implicit == true || n.tag == yaml_MERGE_TAG)
 }

Godeps/_workspace/src/github.com/coreos/yaml/decode_test.go

@@ -1,10 +1,11 @@
 package yaml_test
 
 import (
+	"github.com/coreos/yaml"
 	. "gopkg.in/check.v1"
-	"gopkg.in/yaml.v1"
 	"math"
 	"reflect"
+	"strings"
 	"time"
 )
 
@@ -316,7 +317,10 @@ var unmarshalTests = []struct {
 		map[string]*string{"foo": new(string)},
 	}, {
 		"foo: null",
-		map[string]string{},
+		map[string]string{"foo": ""},
+	}, {
+		"foo: null",
+		map[string]interface{}{"foo": nil},
 	},
 
 	// Ignored field
@@ -377,6 +381,24 @@ var unmarshalTests = []struct {
 		"a: <foo>",
 		map[string]string{"a": "<foo>"},
 	},
+
+	// Base 60 floats are obsolete and unsupported.
+	{
+		"a: 1:1\n",
+		map[string]string{"a": "1:1"},
+	},
+
+	// Binary data.
+	{
+		"a: !!binary gIGC\n",
+		map[string]string{"a": "\x80\x81\x82"},
+	}, {
+		"a: !!binary |\n  " + strings.Repeat("kJCQ", 17) + "kJ\n  CQ\n",
+		map[string]string{"a": strings.Repeat("\x90", 54)},
+	}, {
+		"a: !!binary |\n  " + strings.Repeat("A", 70) + "\n  ==\n",
+		map[string]string{"a": strings.Repeat("\x00", 52)},
+	},
 }
 
 type inlineB struct {
@@ -424,12 +446,15 @@ func (s *S) TestUnmarshalNaN(c *C) {
 var unmarshalErrorTests = []struct {
 	data, error string
 }{
-	{"v: !!float 'error'", "YAML error: Can't decode !!str 'error' as a !!float"},
+	{"v: !!float 'error'", "YAML error: cannot decode !!str `error` as a !!float"},
 	{"v: [A,", "YAML error: line 1: did not find expected node content"},
 	{"v:\n- [A,", "YAML error: line 2: did not find expected node content"},
 	{"a: *b\n", "YAML error: Unknown anchor 'b' referenced"},
 	{"a: &a\n  b: *a\n", "YAML error: Anchor 'a' value contains itself"},
 	{"value: -", "YAML error: block sequence entries are not allowed in this context"},
+	{"a: !!binary ==", "YAML error: !!binary value contains invalid base64 data"},
+	{"{[.]}", `YAML error: invalid map key: \[\]interface \{\}\{"\."\}`},
+	{"{{.}}", `YAML error: invalid map key: map\[interface\ \{\}\]interface \{\}\{".":interface \{\}\(nil\)\}`},
 }
 
 func (s *S) TestUnmarshalErrors(c *C) {
@@ -532,6 +557,23 @@ func (s *S) TestUnmarshalWithFalseSetterIgnoresValue(c *C) {
 	c.Assert(m["ghi"].value, Equals, 3)
 }
 
+func (s *S) TestUnmarshalWithTransform(c *C) {
+	data := `{a_b: 1, c-d: 2, e-f_g: 3, h_i-j: 4}`
+	expect := map[string]int{
+		"a_b":   1,
+		"c_d":   2,
+		"e_f_g": 3,
+		"h_i_j": 4,
+	}
+	m := map[string]int{}
+	yaml.UnmarshalMappingKeyTransform = func(i string) string {
+		return strings.Replace(i, "-", "_", -1)
+	}
+	err := yaml.Unmarshal([]byte(data), m)
+	c.Assert(err, IsNil)
+	c.Assert(m, DeepEquals, expect)
+}
+
 // From http://yaml.org/type/merge.html
 var mergeTests = `
 anchors:
@@ -624,6 +666,30 @@ func (s *S) TestMergeStruct(c *C) {
 	}
 }
 
+var unmarshalNullTests = []func() interface{}{
+	func() interface{} { var v interface{}; v = "v"; return &v },
+	func() interface{} { var s = "s"; return &s },
+	func() interface{} { var s = "s"; sptr := &s; return &sptr },
+	func() interface{} { var i = 1; return &i },
+	func() interface{} { var i = 1; iptr := &i; return &iptr },
+	func() interface{} { m := map[string]int{"s": 1}; return &m },
+	func() interface{} { m := map[string]int{"s": 1}; return m },
+}
+
+func (s *S) TestUnmarshalNull(c *C) {
+	for _, test := range unmarshalNullTests {
+		item := test()
+		zero := reflect.Zero(reflect.TypeOf(item).Elem()).Interface()
+		err := yaml.Unmarshal([]byte("null"), item)
+		c.Assert(err, IsNil)
+		if reflect.TypeOf(item).Kind() == reflect.Map {
+			c.Assert(reflect.ValueOf(item).Interface(), DeepEquals, reflect.MakeMap(reflect.TypeOf(item)).Interface())
+		} else {
+			c.Assert(reflect.ValueOf(item).Elem().Interface(), DeepEquals, zero)
+		}
+	}
+}
+
 //var data []byte
 //func init() {
 //	var err error

Godeps/_workspace/src/github.com/coreos/yaml/emitterc.go

@@ -973,8 +973,8 @@ func yaml_emitter_analyze_tag(emitter *yaml_emitter_t, tag []byte) bool {
 		if bytes.HasPrefix(tag, tag_directive.prefix) {
 			emitter.tag_data.handle = tag_directive.handle
 			emitter.tag_data.suffix = tag[len(tag_directive.prefix):]
+			return true
 		}
-		return true
 	}
 	emitter.tag_data.suffix = tag
 	return true
@@ -1279,6 +1279,9 @@ func yaml_emitter_write_tag_content(emitter *yaml_emitter_t, value []byte, need_
 			for k := 0; k < w; k++ {
 				octet := value[i]
 				i++
+				if !put(emitter, '%') {
+					return false
+				}
 
 				c := octet >> 4
 				if c < 10 {

Godeps/_workspace/src/github.com/coreos/yaml/encode.go

@@ -2,8 +2,10 @@ package yaml
 
 import (
 	"reflect"
+	"regexp"
 	"sort"
 	"strconv"
+	"strings"
 	"time"
 )
 
@@ -50,14 +52,19 @@ func (e *encoder) must(ok bool) {
 		if msg == "" {
 			msg = "Unknown problem generating YAML content"
 		}
-		panic(msg)
+		fail(msg)
 	}
 }
 
 func (e *encoder) marshal(tag string, in reflect.Value) {
+	if !in.IsValid() {
+		e.nilv()
+		return
+	}
 	var value interface{}
 	if getter, ok := in.Interface().(Getter); ok {
 		tag, value = getter.GetYAML()
+		tag = longTag(tag)
 		if value == nil {
 			e.nilv()
 			return
@@ -98,7 +105,7 @@ func (e *encoder) marshal(tag string, in reflect.Value) {
 	case reflect.Bool:
 		e.boolv(tag, in)
 	default:
-		panic("Can't marshal type yet: " + in.Type().String())
+		panic("Can't marshal type: " + in.Type().String())
 	}
 }
 
@@ -167,11 +174,46 @@ func (e *encoder) slicev(tag string, in reflect.Value) {
 	e.emit()
 }
 
+// isBase60 returns whether s is in base 60 notation as defined in YAML 1.1.
+//
+// The base 60 float notation in YAML 1.1 is a terrible idea and is unsupported
+// in YAML 1.2 and by this package, but these should be marshalled quoted for
+// the time being for compatibility with other parsers.
+func isBase60Float(s string) (result bool) {
+	// Fast path.
+	if s == "" {
+		return false
+	}
+	c := s[0]
+	if !(c == '+' || c == '-' || c >= '0' && c <= '9') || strings.IndexByte(s, ':') < 0 {
+		return false
+	}
+	// Do the full match.
+	return base60float.MatchString(s)
+}
+
+// From http://yaml.org/type/float.html, except the regular expression there
+// is bogus. In practice parsers do not enforce the "\.[0-9_]*" suffix.
+var base60float = regexp.MustCompile(`^[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+(?:\.[0-9_]*)?$`)
+
 func (e *encoder) stringv(tag string, in reflect.Value) {
 	var style yaml_scalar_style_t
 	s := in.String()
-	if rtag, _ := resolve("", s); rtag != "!!str" {
+	rtag, rs := resolve("", s)
+	if rtag == yaml_BINARY_TAG {
+		if tag == "" || tag == yaml_STR_TAG {
+			tag = rtag
+			s = rs.(string)
+		} else if tag == yaml_BINARY_TAG {
+			fail("explicitly tagged !!binary data must be base64-encoded")
+		} else {
+			fail("cannot marshal invalid UTF-8 data as " + shortTag(tag))
+		}
+	}
+	if tag == "" && (rtag != yaml_STR_TAG || isBase60Float(s)) {
 		style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+	} else if strings.Contains(s, "\n") {
+		style = yaml_LITERAL_SCALAR_STYLE
 	} else {
 		style = yaml_PLAIN_SCALAR_STYLE
 	}
@@ -218,9 +260,6 @@ func (e *encoder) nilv() {
 
 func (e *encoder) emitScalar(value, anchor, tag string, style yaml_scalar_style_t) {
 	implicit := tag == ""
-	if !implicit {
-		style = yaml_PLAIN_SCALAR_STYLE
-	}
 	e.must(yaml_scalar_event_initialize(&e.event, []byte(anchor), []byte(tag), []byte(value), implicit, implicit, style))
 	e.emit()
 }

Godeps/_workspace/src/github.com/coreos/yaml/encode_test.go

@@ -2,12 +2,13 @@ package yaml_test
 
 import (
 	"fmt"
-	"gopkg.in/yaml.v1"
-	. "gopkg.in/check.v1"
 	"math"
 	"strconv"
 	"strings"
 	"time"
+
+	"github.com/coreos/yaml"
+	. "gopkg.in/check.v1"
 )
 
 var marshalIntTest = 123
@@ -17,6 +18,9 @@ var marshalTests = []struct {
 	data  string
 }{
 	{
+		nil,
+		"null\n",
+	}, {
 		&struct{}{},
 		"{}\n",
 	}, {
@@ -87,7 +91,7 @@ var marshalTests = []struct {
 		"v:\n- A\n- B\n",
 	}, {
 		map[string][]string{"v": []string{"A", "B\nC"}},
-		"v:\n- A\n- 'B\n\n  C'\n",
+		"v:\n- A\n- |-\n  B\n  C\n",
 	}, {
 		map[string][]interface{}{"v": []interface{}{"A", 1, map[string][]int{"B": []int{2, 3}}}},
 		"v:\n- A\n- 1\n- B:\n  - 2\n  - 3\n",
@@ -220,11 +224,39 @@ var marshalTests = []struct {
 		"a: 3s\n",
 	},
 
-	// Issue #24. 
+	// Issue #24: bug in map merging logic.
 	{
 		map[string]string{"a": "<foo>"},
 		"a: <foo>\n",
 	},
+
+	// Issue #34: marshal unsupported base 60 floats quoted for compatibility
+	// with old YAML 1.1 parsers.
+	{
+		map[string]string{"a": "1:1"},
+		"a: \"1:1\"\n",
+	},
+
+	// Binary data.
+	{
+		map[string]string{"a": "\x00"},
+		"a: \"\\0\"\n",
+	}, {
+		map[string]string{"a": "\x80\x81\x82"},
+		"a: !!binary gIGC\n",
+	}, {
+		map[string]string{"a": strings.Repeat("\x90", 54)},
+		"a: !!binary |\n  " + strings.Repeat("kJCQ", 17) + "kJ\n  CQ\n",
+	}, {
+		map[string]interface{}{"a": typeWithGetter{"!!str", "\x80\x81\x82"}},
+		"a: !!binary gIGC\n",
+	},
+
+	// Escaping of tags.
+	{
+		map[string]interface{}{"a": typeWithGetter{"foo!bar", 1}},
+		"a: !<foo%21bar> 1\n",
+	},
 }
 
 func (s *S) TestMarshal(c *C) {
@@ -238,20 +270,29 @@ func (s *S) TestMarshal(c *C) {
 var marshalErrorTests = []struct {
 	value interface{}
 	error string
-}{
-	{
-		&struct {
-			B       int
-			inlineB ",inline"
-		}{1, inlineB{2, inlineC{3}}},
-		`Duplicated key 'b' in struct struct \{ B int; .*`,
-	},
-}
+	panic string
+}{{
+	value: &struct {
+		B       int
+		inlineB ",inline"
+	}{1, inlineB{2, inlineC{3}}},
+	panic: `Duplicated key 'b' in struct struct \{ B int; .*`,
+}, {
+	value: typeWithGetter{"!!binary", "\x80"},
+	error: "YAML error: explicitly tagged !!binary data must be base64-encoded",
+}, {
+	value: typeWithGetter{"!!float", "\x80"},
+	error: `YAML error: cannot marshal invalid UTF-8 data as !!float`,
+}}
 
 func (s *S) TestMarshalErrors(c *C) {
 	for _, item := range marshalErrorTests {
-		_, err := yaml.Marshal(item.value)
-		c.Assert(err, ErrorMatches, item.error)
+		if item.panic != "" {
+			c.Assert(func() { yaml.Marshal(item.value) }, PanicMatches, item.panic)
+		} else {
+			_, err := yaml.Marshal(item.value)
+			c.Assert(err, ErrorMatches, item.error)
+		}
 	}
 }
 

Godeps/_workspace/src/github.com/coreos/yaml/resolve.go

@@ -0,0 +1,190 @@
+package yaml
+
+import (
+	"encoding/base64"
+	"fmt"
+	"math"
+	"strconv"
+	"strings"
+	"unicode/utf8"
+)
+
+// TODO: merge, timestamps, base 60 floats, omap.
+
+type resolveMapItem struct {
+	value interface{}
+	tag   string
+}
+
+var resolveTable = make([]byte, 256)
+var resolveMap = make(map[string]resolveMapItem)
+
+func init() {
+	t := resolveTable
+	t[int('+')] = 'S' // Sign
+	t[int('-')] = 'S'
+	for _, c := range "0123456789" {
+		t[int(c)] = 'D' // Digit
+	}
+	for _, c := range "yYnNtTfFoO~" {
+		t[int(c)] = 'M' // In map
+	}
+	t[int('.')] = '.' // Float (potentially in map)
+
+	var resolveMapList = []struct {
+		v   interface{}
+		tag string
+		l   []string
+	}{
+		{true, yaml_BOOL_TAG, []string{"y", "Y", "yes", "Yes", "YES"}},
+		{true, yaml_BOOL_TAG, []string{"true", "True", "TRUE"}},
+		{true, yaml_BOOL_TAG, []string{"on", "On", "ON"}},
+		{false, yaml_BOOL_TAG, []string{"n", "N", "no", "No", "NO"}},
+		{false, yaml_BOOL_TAG, []string{"false", "False", "FALSE"}},
+		{false, yaml_BOOL_TAG, []string{"off", "Off", "OFF"}},
+		{nil, yaml_NULL_TAG, []string{"", "~", "null", "Null", "NULL"}},
+		{math.NaN(), yaml_FLOAT_TAG, []string{".nan", ".NaN", ".NAN"}},
+		{math.Inf(+1), yaml_FLOAT_TAG, []string{".inf", ".Inf", ".INF"}},
+		{math.Inf(+1), yaml_FLOAT_TAG, []string{"+.inf", "+.Inf", "+.INF"}},
+		{math.Inf(-1), yaml_FLOAT_TAG, []string{"-.inf", "-.Inf", "-.INF"}},
+		{"<<", yaml_MERGE_TAG, []string{"<<"}},
+	}
+
+	m := resolveMap
+	for _, item := range resolveMapList {
+		for _, s := range item.l {
+			m[s] = resolveMapItem{item.v, item.tag}
+		}
+	}
+}
+
+const longTagPrefix = "tag:yaml.org,2002:"
+
+func shortTag(tag string) string {
+	// TODO This can easily be made faster and produce less garbage.
+	if strings.HasPrefix(tag, longTagPrefix) {
+		return "!!" + tag[len(longTagPrefix):]
+	}
+	return tag
+}
+
+func longTag(tag string) string {
+	if strings.HasPrefix(tag, "!!") {
+		return longTagPrefix + tag[2:]
+	}
+	return tag
+}
+
+func resolvableTag(tag string) bool {
+	switch tag {
+	case "", yaml_STR_TAG, yaml_BOOL_TAG, yaml_INT_TAG, yaml_FLOAT_TAG, yaml_NULL_TAG:
+		return true
+	}
+	return false
+}
+
+func resolve(tag string, in string) (rtag string, out interface{}) {
+	if !resolvableTag(tag) {
+		return tag, in
+	}
+
+	defer func() {
+		switch tag {
+		case "", rtag, yaml_STR_TAG, yaml_BINARY_TAG:
+			return
+		}
+		fail(fmt.Sprintf("cannot decode %s `%s` as a %s", shortTag(rtag), in, shortTag(tag)))
+	}()
+
+	// Any data is accepted as a !!str or !!binary.
+	// Otherwise, the prefix is enough of a hint about what it might be.
+	hint := byte('N')
+	if in != "" {
+		hint = resolveTable[in[0]]
+	}
+	if hint != 0 && tag != yaml_STR_TAG && tag != yaml_BINARY_TAG {
+		// Handle things we can lookup in a map.
+		if item, ok := resolveMap[in]; ok {
+			return item.tag, item.value
+		}
+
+		// Base 60 floats are a bad idea, were dropped in YAML 1.2, and
+		// are purposefully unsupported here. They're still quoted on
+		// the way out for compatibility with other parser, though.
+
+		switch hint {
+		case 'M':
+			// We've already checked the map above.
+
+		case '.':
+			// Not in the map, so maybe a normal float.
+			floatv, err := strconv.ParseFloat(in, 64)
+			if err == nil {
+				return yaml_FLOAT_TAG, floatv
+			}
+
+		case 'D', 'S':
+			// Int, float, or timestamp.
+			plain := strings.Replace(in, "_", "", -1)
+			intv, err := strconv.ParseInt(plain, 0, 64)
+			if err == nil {
+				if intv == int64(int(intv)) {
+					return yaml_INT_TAG, int(intv)
+				} else {
+					return yaml_INT_TAG, intv
+				}
+			}
+			floatv, err := strconv.ParseFloat(plain, 64)
+			if err == nil {
+				return yaml_FLOAT_TAG, floatv
+			}
+			if strings.HasPrefix(plain, "0b") {
+				intv, err := strconv.ParseInt(plain[2:], 2, 64)
+				if err == nil {
+					return yaml_INT_TAG, int(intv)
+				}
+			} else if strings.HasPrefix(plain, "-0b") {
+				intv, err := strconv.ParseInt(plain[3:], 2, 64)
+				if err == nil {
+					return yaml_INT_TAG, -int(intv)
+				}
+			}
+			// XXX Handle timestamps here.
+
+		default:
+			panic("resolveTable item not yet handled: " + string(rune(hint)) + " (with " + in + ")")
+		}
+	}
+	if tag == yaml_BINARY_TAG {
+		return yaml_BINARY_TAG, in
+	}
+	if utf8.ValidString(in) {
+		return yaml_STR_TAG, in
+	}
+	return yaml_BINARY_TAG, encodeBase64(in)
+}
+
+// encodeBase64 encodes s as base64 that is broken up into multiple lines
+// as appropriate for the resulting length.
+func encodeBase64(s string) string {
+	const lineLen = 70
+	encLen := base64.StdEncoding.EncodedLen(len(s))
+	lines := encLen/lineLen + 1
+	buf := make([]byte, encLen*2+lines)
+	in := buf[0:encLen]
+	out := buf[encLen:]
+	base64.StdEncoding.Encode(in, []byte(s))
+	k := 0
+	for i := 0; i < len(in); i += lineLen {
+		j := i + lineLen
+		if j > len(in) {
+			j = len(in)
+		}
+		k += copy(out[k:], in[i:j])
+		if lines > 1 {
+			out[k] = '\n'
+			k++
+		}
+	}
+	return string(out[:k])
+}

Godeps/_workspace/src/github.com/coreos/yaml/yaml.go

@@ -10,23 +10,20 @@ import (
 	"errors"
 	"fmt"
 	"reflect"
-	"runtime"
 	"strings"
 	"sync"
 )
 
+type yamlError string
+
+func fail(msg string) {
+	panic(yamlError(msg))
+}
+
 func handleErr(err *error) {
 	if r := recover(); r != nil {
-		if _, ok := r.(runtime.Error); ok {
-			panic(r)
-		} else if _, ok := r.(*reflect.ValueError); ok {
-			panic(r)
-		} else if _, ok := r.(externalPanic); ok {
-			panic(r)
-		} else if s, ok := r.(string); ok {
-			*err = errors.New("YAML error: " + s)
-		} else if e, ok := r.(error); ok {
-			*err = e
+		if e, ok := r.(yamlError); ok {
+			*err = errors.New("YAML error: " + string(e))
 		} else {
 			panic(r)
 		}
@@ -78,7 +75,7 @@ type Getter interface {
 //         F int `yaml:"a,omitempty"`
 //         B int
 //     }
-//     var T t
+//     var t T
 //     yaml.Unmarshal([]byte("a: 1\nb: 2"), &t)
 //
 // See the documentation of Marshal for the format of tags and a list of
@@ -87,11 +84,15 @@ type Getter interface {
 func Unmarshal(in []byte, out interface{}) (err error) {
 	defer handleErr(&err)
 	d := newDecoder()
-	p := newParser(in)
+	p := newParser(in, UnmarshalMappingKeyTransform)
 	defer p.destroy()
 	node := p.parse()
 	if node != nil {
-		d.unmarshal(node, reflect.ValueOf(out))
+		v := reflect.ValueOf(out)
+		if v.Kind() == reflect.Ptr && !v.IsNil() {
+			v = v.Elem()
+		}
+		d.unmarshal(node, v)
 	}
 	return nil
 }
@@ -145,6 +146,17 @@ func Marshal(in interface{}) (out []byte, err error) {
 	return
 }
 
+// UnmarshalMappingKeyTransform is a string transformation that is applied to
+// each mapping key in a YAML document before it is unmarshalled. By default,
+// UnmarshalMappingKeyTransform is an identity transform (no modification).
+var UnmarshalMappingKeyTransform transformString = identityTransform
+
+type transformString func(in string) (out string)
+
+func identityTransform(in string) (out string) {
+	return in
+}
+
 // --------------------------------------------------------------------------
 // Maintain a mapping of keys to structure field indexes
 
@@ -174,12 +186,6 @@ type fieldInfo struct {
 var structMap = make(map[reflect.Type]*structInfo)
 var fieldMapMutex sync.RWMutex
 
-type externalPanic string
-
-func (e externalPanic) String() string {
-	return string(e)
-}
-
 func getStructInfo(st reflect.Type) (*structInfo, error) {
 	fieldMapMutex.RLock()
 	sinfo, found := structMap[st]
@@ -220,8 +226,7 @@ func getStructInfo(st reflect.Type) (*structInfo, error) {
 				case "inline":
 					inline = true
 				default:
-					msg := fmt.Sprintf("Unsupported flag %q in tag %q of type %s", flag, tag, st)
-					panic(externalPanic(msg))
+					return nil, errors.New(fmt.Sprintf("Unsupported flag %q in tag %q of type %s", flag, tag, st))
 				}
 			}
 			tag = fields[0]
@@ -229,6 +234,7 @@ func getStructInfo(st reflect.Type) (*structInfo, error) {
 
 		if inline {
 			switch field.Type.Kind() {
+			// TODO: Implement support for inline maps.
 			//case reflect.Map:
 			//	if inlineMap >= 0 {
 			//		return nil, errors.New("Multiple ,inline maps in struct " + st.String())
@@ -256,8 +262,8 @@ func getStructInfo(st reflect.Type) (*structInfo, error) {
 					fieldsList = append(fieldsList, finfo)
 				}
 			default:
-				//panic("Option ,inline needs a struct value or map field")
-				panic("Option ,inline needs a struct value field")
+				//return nil, errors.New("Option ,inline needs a struct value or map field")
+				return nil, errors.New("Option ,inline needs a struct value field")
 			}
 			continue
 		}

Godeps/_workspace/src/github.com/coreos/yaml/yamlh.go

@@ -294,6 +294,10 @@ const (
 	yaml_SEQ_TAG = "tag:yaml.org,2002:seq" // The tag !!seq is used to denote sequences.
 	yaml_MAP_TAG = "tag:yaml.org,2002:map" // The tag !!map is used to denote mapping.
 
+	// Not in original libyaml.
+	yaml_BINARY_TAG = "tag:yaml.org,2002:binary"
+	yaml_MERGE_TAG = "tag:yaml.org,2002:merge"
+
 	yaml_DEFAULT_SCALAR_TAG   = yaml_STR_TAG // The default scalar tag is !!str.
 	yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG // The default sequence tag is !!seq.
 	yaml_DEFAULT_MAPPING_TAG  = yaml_MAP_TAG // The default mapping tag is !!map.

Godeps/_workspace/src/github.com/guelfey/go.dbus/introspect/call.go

@@ -2,7 +2,7 @@ package introspect
 
 import (
 	"encoding/xml"
-	"github.com/coreos/coreos-cloudinit/third_party/github.com/guelfey/go.dbus"
+	"github.com/coreos/coreos-cloudinit/Godeps/_workspace/src/github.com/guelfey/go.dbus"
 	"strings"
 )
 

Godeps/_workspace/src/github.com/guelfey/go.dbus/introspect/introspectable.go

@@ -2,7 +2,7 @@ package introspect
 
 import (
 	"encoding/xml"
-	"github.com/coreos/coreos-cloudinit/third_party/github.com/guelfey/go.dbus"
+	"github.com/coreos/coreos-cloudinit/Godeps/_workspace/src/github.com/guelfey/go.dbus"
 	"reflect"
 )
 

Godeps/_workspace/src/github.com/guelfey/go.dbus/prop/prop.go

@@ -3,8 +3,8 @@
 package prop
 
 import (
-	"github.com/coreos/coreos-cloudinit/third_party/github.com/guelfey/go.dbus"
-	"github.com/coreos/coreos-cloudinit/third_party/github.com/guelfey/go.dbus/introspect"
+	"github.com/coreos/coreos-cloudinit/Godeps/_workspace/src/github.com/guelfey/go.dbus"
+	"github.com/coreos/coreos-cloudinit/Godeps/_workspace/src/github.com/guelfey/go.dbus/introspect"
 	"sync"
 )
 

Godeps/_workspace/src/github.com/tarm/goserial/basic_test.go

@@ -0,0 +1,61 @@
+package serial
+
+import (
+	"testing"
+	"time"
+)
+
+func TestConnection(t *testing.T) {
+	c0 := &Config{Name: "/dev/ttyUSB0", Baud: 115200}
+	c1 := &Config{Name: "/dev/ttyUSB1", Baud: 115200}
+
+	s1, err := OpenPort(c0)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	s2, err := OpenPort(c1)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	ch := make(chan int, 1)
+	go func() {
+		buf := make([]byte, 128)
+		var readCount int
+		for {
+			n, err := s2.Read(buf)
+			if err != nil {
+				t.Fatal(err)
+			}
+			readCount++
+			t.Logf("Read %v %v bytes: % 02x %s", readCount, n, buf[:n], buf[:n])
+			select {
+			case <-ch:
+				ch <- readCount
+				close(ch)
+			default:
+			}
+		}
+	}()
+
+	if _, err = s1.Write([]byte("hello")); err != nil {
+		t.Fatal(err)
+	}
+	if _, err = s1.Write([]byte(" ")); err != nil {
+		t.Fatal(err)
+	}
+	time.Sleep(time.Second)
+	if _, err = s1.Write([]byte("world")); err != nil {
+		t.Fatal(err)
+	}
+	time.Sleep(time.Second / 10)
+
+	ch <- 0
+	s1.Write([]byte(" ")) // We could be blocked in the read without this
+	c := <-ch
+	exp := 5
+	if c >= exp {
+		t.Fatalf("Expected less than %v read, got %v", exp, c)
+	}
+}

config/config.go

@@ -0,0 +1,154 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"fmt"
+	"reflect"
+	"regexp"
+	"strings"
+
+	"github.com/coreos/coreos-cloudinit/Godeps/_workspace/src/github.com/coreos/yaml"
+)
+
+// CloudConfig encapsulates the entire cloud-config configuration file and maps
+// directly to YAML. Fields that cannot be set in the cloud-config (fields
+// used for internal use) have the YAML tag '-' so that they aren't marshalled.
+type CloudConfig struct {
+	SSHAuthorizedKeys []string `yaml:"ssh_authorized_keys"`
+	CoreOS            CoreOS   `yaml:"coreos"`
+	WriteFiles        []File   `yaml:"write_files"`
+	Hostname          string   `yaml:"hostname"`
+	Users             []User   `yaml:"users"`
+	ManageEtcHosts    EtcHosts `yaml:"manage_etc_hosts"`
+}
+
+type CoreOS struct {
+	Etcd      Etcd      `yaml:"etcd"`
+	Flannel   Flannel   `yaml:"flannel"`
+	Fleet     Fleet     `yaml:"fleet"`
+	Locksmith Locksmith `yaml:"locksmith"`
+	OEM       OEM       `yaml:"oem"`
+	Update    Update    `yaml:"update"`
+	Units     []Unit    `yaml:"units"`
+}
+
+func IsCloudConfig(userdata string) bool {
+	header := strings.SplitN(userdata, "\n", 2)[0]
+
+	// Explicitly trim the header so we can handle user-data from
+	// non-unix operating systems. The rest of the file is parsed
+	// by yaml, which correctly handles CRLF.
+	header = strings.TrimSuffix(header, "\r")
+
+	return (header == "#cloud-config")
+}
+
+// NewCloudConfig instantiates a new CloudConfig from the given contents (a
+// string of YAML), returning any error encountered. It will ignore unknown
+// fields but log encountering them.
+func NewCloudConfig(contents string) (*CloudConfig, error) {
+	yaml.UnmarshalMappingKeyTransform = func(nameIn string) (nameOut string) {
+		return strings.Replace(nameIn, "-", "_", -1)
+	}
+	var cfg CloudConfig
+	err := yaml.Unmarshal([]byte(contents), &cfg)
+	return &cfg, err
+}
+
+func (cc CloudConfig) String() string {
+	bytes, err := yaml.Marshal(cc)
+	if err != nil {
+		return ""
+	}
+
+	stringified := string(bytes)
+	stringified = fmt.Sprintf("#cloud-config\n%s", stringified)
+
+	return stringified
+}
+
+// IsZero returns whether or not the parameter is the zero value for its type.
+// If the parameter is a struct, only the exported fields are considered.
+func IsZero(c interface{}) bool {
+	return isZero(reflect.ValueOf(c))
+}
+
+type ErrorValid struct {
+	Value string
+	Valid string
+	Field string
+}
+
+func (e ErrorValid) Error() string {
+	return fmt.Sprintf("invalid value %q for option %q (valid options: %q)", e.Value, e.Field, e.Valid)
+}
+
+// AssertStructValid checks the fields in the structure and makes sure that
+// they contain valid values as specified by the 'valid' flag. Empty fields are
+// implicitly valid.
+func AssertStructValid(c interface{}) error {
+	ct := reflect.TypeOf(c)
+	cv := reflect.ValueOf(c)
+	for i := 0; i < ct.NumField(); i++ {
+		ft := ct.Field(i)
+		if !isFieldExported(ft) {
+			continue
+		}
+
+		if err := AssertValid(cv.Field(i), ft.Tag.Get("valid")); err != nil {
+			err.Field = ft.Name
+			return err
+		}
+	}
+	return nil
+}
+
+// AssertValid checks to make sure that the given value is in the list of
+// valid values. Zero values are implicitly valid.
+func AssertValid(value reflect.Value, valid string) *ErrorValid {
+	if valid == "" || isZero(value) {
+		return nil
+	}
+
+	vs := fmt.Sprintf("%v", value.Interface())
+	if m, _ := regexp.MatchString(valid, vs); m {
+		return nil
+	}
+
+	return &ErrorValid{
+		Value: vs,
+		Valid: valid,
+	}
+}
+
+func isZero(v reflect.Value) bool {
+	switch v.Kind() {
+	case reflect.Struct:
+		vt := v.Type()
+		for i := 0; i < v.NumField(); i++ {
+			if isFieldExported(vt.Field(i)) && !isZero(v.Field(i)) {
+				return false
+			}
+		}
+		return true
+	default:
+		return v.Interface() == reflect.Zero(v.Type()).Interface()
+	}
+}
+
+func isFieldExported(f reflect.StructField) bool {
+	return f.PkgPath == ""
+}

config/config_test.go

@@ -0,0 +1,497 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"reflect"
+	"regexp"
+	"strings"
+	"testing"
+)
+
+func TestNewCloudConfig(t *testing.T) {
+	tests := []struct {
+		contents string
+
+		config CloudConfig
+	}{
+		{},
+		{
+			contents: "#cloud-config\nwrite_files:\n  - path: underscore",
+			config:   CloudConfig{WriteFiles: []File{File{Path: "underscore"}}},
+		},
+		{
+			contents: "#cloud-config\nwrite-files:\n  - path: hyphen",
+			config:   CloudConfig{WriteFiles: []File{File{Path: "hyphen"}}},
+		},
+		{
+			contents: "#cloud-config\ncoreos:\n  update:\n    reboot-strategy: off",
+			config:   CloudConfig{CoreOS: CoreOS{Update: Update{RebootStrategy: "off"}}},
+		},
+		{
+			contents: "#cloud-config\ncoreos:\n  update:\n    reboot-strategy: false",
+			config:   CloudConfig{CoreOS: CoreOS{Update: Update{RebootStrategy: "false"}}},
+		},
+		{
+			contents: "#cloud-config\nwrite_files:\n  - permissions: 0744",
+			config:   CloudConfig{WriteFiles: []File{File{RawFilePermissions: "0744"}}},
+		},
+		{
+			contents: "#cloud-config\nwrite_files:\n  - permissions: 744",
+			config:   CloudConfig{WriteFiles: []File{File{RawFilePermissions: "744"}}},
+		},
+		{
+			contents: "#cloud-config\nwrite_files:\n  - permissions: '0744'",
+			config:   CloudConfig{WriteFiles: []File{File{RawFilePermissions: "0744"}}},
+		},
+		{
+			contents: "#cloud-config\nwrite_files:\n  - permissions: '744'",
+			config:   CloudConfig{WriteFiles: []File{File{RawFilePermissions: "744"}}},
+		},
+	}
+
+	for i, tt := range tests {
+		config, err := NewCloudConfig(tt.contents)
+		if err != nil {
+			t.Errorf("bad error (test case #%d): want %v, got %s", i, nil, err)
+		}
+		if !reflect.DeepEqual(&tt.config, config) {
+			t.Errorf("bad config (test case #%d): want %#v, got %#v", i, tt.config, config)
+		}
+	}
+}
+
+func TestIsZero(t *testing.T) {
+	tests := []struct {
+		c interface{}
+
+		empty bool
+	}{
+		{struct{}{}, true},
+		{struct{ a, b string }{}, true},
+		{struct{ A, b string }{}, true},
+		{struct{ A, B string }{}, true},
+		{struct{ A string }{A: "hello"}, false},
+		{struct{ A int }{}, true},
+		{struct{ A int }{A: 1}, false},
+	}
+
+	for _, tt := range tests {
+		if empty := IsZero(tt.c); tt.empty != empty {
+			t.Errorf("bad result (%q): want %t, got %t", tt.c, tt.empty, empty)
+		}
+	}
+}
+
+func TestAssertStructValid(t *testing.T) {
+	tests := []struct {
+		c interface{}
+
+		err error
+	}{
+		{struct{}{}, nil},
+		{struct {
+			A, b string `valid:"^1|2$"`
+		}{}, nil},
+		{struct {
+			A, b string `valid:"^1|2$"`
+		}{A: "1", b: "2"}, nil},
+		{struct {
+			A, b string `valid:"^1|2$"`
+		}{A: "1", b: "hello"}, nil},
+		{struct {
+			A, b string `valid:"^1|2$"`
+		}{A: "hello", b: "2"}, &ErrorValid{Value: "hello", Field: "A", Valid: "^1|2$"}},
+		{struct {
+			A, b int `valid:"^1|2$"`
+		}{}, nil},
+		{struct {
+			A, b int `valid:"^1|2$"`
+		}{A: 1, b: 2}, nil},
+		{struct {
+			A, b int `valid:"^1|2$"`
+		}{A: 1, b: 9}, nil},
+		{struct {
+			A, b int `valid:"^1|2$"`
+		}{A: 9, b: 2}, &ErrorValid{Value: "9", Field: "A", Valid: "^1|2$"}},
+	}
+
+	for _, tt := range tests {
+		if err := AssertStructValid(tt.c); !reflect.DeepEqual(tt.err, err) {
+			t.Errorf("bad result (%q): want %q, got %q", tt.c, tt.err, err)
+		}
+	}
+}
+
+func TestConfigCompile(t *testing.T) {
+	tests := []interface{}{
+		Etcd{},
+		File{},
+		Flannel{},
+		Fleet{},
+		Locksmith{},
+		OEM{},
+		Unit{},
+		Update{},
+	}
+
+	for _, tt := range tests {
+		ttt := reflect.TypeOf(tt)
+		for i := 0; i < ttt.NumField(); i++ {
+			ft := ttt.Field(i)
+			if !isFieldExported(ft) {
+				continue
+			}
+
+			if _, err := regexp.Compile(ft.Tag.Get("valid")); err != nil {
+				t.Errorf("bad regexp(%s.%s): want %v, got %s", ttt.Name(), ft.Name, nil, err)
+			}
+		}
+	}
+}
+
+func TestCloudConfigUnknownKeys(t *testing.T) {
+	contents := `
+coreos: 
+  etcd:
+    discovery: "https://discovery.etcd.io/827c73219eeb2fa5530027c37bf18877"
+  coreos_unknown:
+    foo: "bar"
+section_unknown:
+  dunno:
+    something
+bare_unknown:
+  bar
+write_files:
+  - content: fun
+    path: /var/party
+    file_unknown: nofun
+users:
+  - name: fry
+    passwd: somehash
+    user_unknown: philip
+hostname:
+  foo
+`
+	cfg, err := NewCloudConfig(contents)
+	if err != nil {
+		t.Fatalf("error instantiating CloudConfig with unknown keys: %v", err)
+	}
+	if cfg.Hostname != "foo" {
+		t.Fatalf("hostname not correctly set when invalid keys are present")
+	}
+	if cfg.CoreOS.Etcd.Discovery != "https://discovery.etcd.io/827c73219eeb2fa5530027c37bf18877" {
+		t.Fatalf("etcd section not correctly set when invalid keys are present")
+	}
+	if len(cfg.WriteFiles) < 1 || cfg.WriteFiles[0].Content != "fun" || cfg.WriteFiles[0].Path != "/var/party" {
+		t.Fatalf("write_files section not correctly set when invalid keys are present")
+	}
+	if len(cfg.Users) < 1 || cfg.Users[0].Name != "fry" || cfg.Users[0].PasswordHash != "somehash" {
+		t.Fatalf("users section not correctly set when invalid keys are present")
+	}
+}
+
+// Assert that the parsing of a cloud config file "generally works"
+func TestCloudConfigEmpty(t *testing.T) {
+	cfg, err := NewCloudConfig("")
+	if err != nil {
+		t.Fatalf("Encountered unexpected error :%v", err)
+	}
+
+	keys := cfg.SSHAuthorizedKeys
+	if len(keys) != 0 {
+		t.Error("Parsed incorrect number of SSH keys")
+	}
+
+	if len(cfg.WriteFiles) != 0 {
+		t.Error("Expected zero WriteFiles")
+	}
+
+	if cfg.Hostname != "" {
+		t.Errorf("Expected hostname to be empty, got '%s'", cfg.Hostname)
+	}
+}
+
+// Assert that the parsing of a cloud config file "generally works"
+func TestCloudConfig(t *testing.T) {
+	contents := `
+coreos: 
+  etcd:
+    discovery: "https://discovery.etcd.io/827c73219eeb2fa5530027c37bf18877"
+  update:
+    reboot_strategy: reboot
+  units:
+    - name: 50-eth0.network
+      runtime: yes
+      content: '[Match]
+ 
+    Name=eth47
+ 
+ 
+    [Network]
+ 
+    Address=10.209.171.177/19
+ 
+'
+  oem:
+    id: rackspace
+    name: Rackspace Cloud Servers
+    version_id: 168.0.0
+    home_url: https://www.rackspace.com/cloud/servers/
+    bug_report_url: https://github.com/coreos/coreos-overlay
+ssh_authorized_keys:
+  - foobar
+  - foobaz
+write_files:
+  - content: |
+      penny
+      elroy
+    path: /etc/dogepack.conf
+    permissions: '0644'
+    owner: root:dogepack
+hostname: trontastic
+`
+	cfg, err := NewCloudConfig(contents)
+	if err != nil {
+		t.Fatalf("Encountered unexpected error :%v", err)
+	}
+
+	keys := cfg.SSHAuthorizedKeys
+	if len(keys) != 2 {
+		t.Error("Parsed incorrect number of SSH keys")
+	} else if keys[0] != "foobar" {
+		t.Error("Expected first SSH key to be 'foobar'")
+	} else if keys[1] != "foobaz" {
+		t.Error("Expected first SSH key to be 'foobaz'")
+	}
+
+	if len(cfg.WriteFiles) != 1 {
+		t.Error("Failed to parse correct number of write_files")
+	} else {
+		wf := cfg.WriteFiles[0]
+		if wf.Content != "penny\nelroy\n" {
+			t.Errorf("WriteFile has incorrect contents '%s'", wf.Content)
+		}
+		if wf.Encoding != "" {
+			t.Errorf("WriteFile has incorrect encoding %s", wf.Encoding)
+		}
+		if wf.RawFilePermissions != "0644" {
+			t.Errorf("WriteFile has incorrect permissions %s", wf.RawFilePermissions)
+		}
+		if wf.Path != "/etc/dogepack.conf" {
+			t.Errorf("WriteFile has incorrect path %s", wf.Path)
+		}
+		if wf.Owner != "root:dogepack" {
+			t.Errorf("WriteFile has incorrect owner %s", wf.Owner)
+		}
+	}
+
+	if len(cfg.CoreOS.Units) != 1 {
+		t.Error("Failed to parse correct number of units")
+	} else {
+		u := cfg.CoreOS.Units[0]
+		expect := `[Match]
+Name=eth47
+
+[Network]
+Address=10.209.171.177/19
+`
+		if u.Content != expect {
+			t.Errorf("Unit has incorrect contents '%s'.\nExpected '%s'.", u.Content, expect)
+		}
+		if u.Runtime != true {
+			t.Errorf("Unit has incorrect runtime value")
+		}
+		if u.Name != "50-eth0.network" {
+			t.Errorf("Unit has incorrect name %s", u.Name)
+		}
+	}
+
+	if cfg.CoreOS.OEM.ID != "rackspace" {
+		t.Errorf("Failed parsing coreos.oem. Expected ID 'rackspace', got %q.", cfg.CoreOS.OEM.ID)
+	}
+
+	if cfg.Hostname != "trontastic" {
+		t.Errorf("Failed to parse hostname")
+	}
+	if cfg.CoreOS.Update.RebootStrategy != "reboot" {
+		t.Errorf("Failed to parse locksmith strategy")
+	}
+}
+
+// Assert that our interface conversion doesn't panic
+func TestCloudConfigKeysNotList(t *testing.T) {
+	contents := `
+ssh_authorized_keys:
+  - foo: bar
+`
+	cfg, err := NewCloudConfig(contents)
+	if err != nil {
+		t.Fatalf("Encountered unexpected error: %v", err)
+	}
+
+	keys := cfg.SSHAuthorizedKeys
+	if len(keys) != 0 {
+		t.Error("Parsed incorrect number of SSH keys")
+	}
+}
+
+func TestCloudConfigSerializationHeader(t *testing.T) {
+	cfg, _ := NewCloudConfig("")
+	contents := cfg.String()
+	header := strings.SplitN(contents, "\n", 2)[0]
+	if header != "#cloud-config" {
+		t.Fatalf("Serialized config did not have expected header")
+	}
+}
+
+func TestCloudConfigUsers(t *testing.T) {
+	contents := `
+users:
+  - name: elroy
+    passwd: somehash
+    ssh_authorized_keys:
+      - somekey
+    gecos: arbitrary comment
+    homedir: /home/place
+    no_create_home: yes
+    primary_group: things
+    groups:
+      - ping
+      - pong
+    no_user_group: true
+    system: y
+    no_log_init: True
+`
+	cfg, err := NewCloudConfig(contents)
+	if err != nil {
+		t.Fatalf("Encountered unexpected error: %v", err)
+	}
+
+	if len(cfg.Users) != 1 {
+		t.Fatalf("Parsed %d users, expected 1", len(cfg.Users))
+	}
+
+	user := cfg.Users[0]
+
+	if user.Name != "elroy" {
+		t.Errorf("User name is %q, expected 'elroy'", user.Name)
+	}
+
+	if user.PasswordHash != "somehash" {
+		t.Errorf("User passwd is %q, expected 'somehash'", user.PasswordHash)
+	}
+
+	if keys := user.SSHAuthorizedKeys; len(keys) != 1 {
+		t.Errorf("Parsed %d ssh keys, expected 1", len(keys))
+	} else {
+		key := user.SSHAuthorizedKeys[0]
+		if key != "somekey" {
+			t.Errorf("User SSH key is %q, expected 'somekey'", key)
+		}
+	}
+
+	if user.GECOS != "arbitrary comment" {
+		t.Errorf("Failed to parse gecos field, got %q", user.GECOS)
+	}
+
+	if user.Homedir != "/home/place" {
+		t.Errorf("Failed to parse homedir field, got %q", user.Homedir)
+	}
+
+	if !user.NoCreateHome {
+		t.Errorf("Failed to parse no_create_home field")
+	}
+
+	if user.PrimaryGroup != "things" {
+		t.Errorf("Failed to parse primary_group field, got %q", user.PrimaryGroup)
+	}
+
+	if len(user.Groups) != 2 {
+		t.Errorf("Failed to parse 2 goups, got %d", len(user.Groups))
+	} else {
+		if user.Groups[0] != "ping" {
+			t.Errorf("First group was %q, not expected value 'ping'", user.Groups[0])
+		}
+		if user.Groups[1] != "pong" {
+			t.Errorf("First group was %q, not expected value 'pong'", user.Groups[1])
+		}
+	}
+
+	if !user.NoUserGroup {
+		t.Errorf("Failed to parse no_user_group field")
+	}
+
+	if !user.System {
+		t.Errorf("Failed to parse system field")
+	}
+
+	if !user.NoLogInit {
+		t.Errorf("Failed to parse no_log_init field")
+	}
+}
+
+func TestCloudConfigUsersGithubUser(t *testing.T) {
+
+	contents := `
+users:
+  - name: elroy
+    coreos_ssh_import_github: bcwaldon
+`
+	cfg, err := NewCloudConfig(contents)
+	if err != nil {
+		t.Fatalf("Encountered unexpected error: %v", err)
+	}
+
+	if len(cfg.Users) != 1 {
+		t.Fatalf("Parsed %d users, expected 1", len(cfg.Users))
+	}
+
+	user := cfg.Users[0]
+
+	if user.Name != "elroy" {
+		t.Errorf("User name is %q, expected 'elroy'", user.Name)
+	}
+
+	if user.SSHImportGithubUser != "bcwaldon" {
+		t.Errorf("github user is %q, expected 'bcwaldon'", user.SSHImportGithubUser)
+	}
+}
+
+func TestCloudConfigUsersSSHImportURL(t *testing.T) {
+	contents := `
+users:
+  - name: elroy
+    coreos_ssh_import_url: https://token:x-auth-token@github.enterprise.com/api/v3/polvi/keys
+`
+	cfg, err := NewCloudConfig(contents)
+	if err != nil {
+		t.Fatalf("Encountered unexpected error: %v", err)
+	}
+
+	if len(cfg.Users) != 1 {
+		t.Fatalf("Parsed %d users, expected 1", len(cfg.Users))
+	}
+
+	user := cfg.Users[0]
+
+	if user.Name != "elroy" {
+		t.Errorf("User name is %q, expected 'elroy'", user.Name)
+	}
+
+	if user.SSHImportURL != "https://token:x-auth-token@github.enterprise.com/api/v3/polvi/keys" {
+		t.Errorf("ssh import url is %q, expected 'https://token:x-auth-token@github.enterprise.com/api/v3/polvi/keys'", user.SSHImportURL)
+	}
+}

config/decode.go

@@ -0,0 +1,56 @@
+package config
+
+import (
+	"bytes"
+	"compress/gzip"
+	"encoding/base64"
+	"fmt"
+)
+
+func DecodeBase64Content(content string) ([]byte, error) {
+	output, err := base64.StdEncoding.DecodeString(content)
+
+	if err != nil {
+		return nil, fmt.Errorf("Unable to decode base64: %q", err)
+	}
+
+	return output, nil
+}
+
+func DecodeGzipContent(content string) ([]byte, error) {
+	gzr, err := gzip.NewReader(bytes.NewReader([]byte(content)))
+
+	if err != nil {
+		return nil, fmt.Errorf("Unable to decode gzip: %q", err)
+	}
+	defer gzr.Close()
+
+	buf := new(bytes.Buffer)
+	buf.ReadFrom(gzr)
+
+	return buf.Bytes(), nil
+}
+
+func DecodeContent(content string, encoding string) ([]byte, error) {
+	switch encoding {
+	case "":
+		return []byte(content), nil
+
+	case "b64", "base64":
+		return DecodeBase64Content(content)
+
+	case "gz", "gzip":
+		return DecodeGzipContent(content)
+
+	case "gz+base64", "gzip+base64", "gz+b64", "gzip+b64":
+		gz, err := DecodeBase64Content(content)
+
+		if err != nil {
+			return nil, err
+		}
+
+		return DecodeGzipContent(string(gz))
+	}
+
+	return nil, fmt.Errorf("Unsupported encoding %q", encoding)
+}

config/etc_hosts.go

@@ -0,0 +1,17 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type EtcHosts string

config/etcd.go

@@ -0,0 +1,67 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type Etcd struct {
+	Addr                     string  `yaml:"addr"                          env:"ETCD_ADDR"`
+	AdvertiseClientURLs      string  `yaml:"advertise_client_urls"         env:"ETCD_ADVERTISE_CLIENT_URLS"`
+	BindAddr                 string  `yaml:"bind_addr"                     env:"ETCD_BIND_ADDR"`
+	CAFile                   string  `yaml:"ca_file"                       env:"ETCD_CA_FILE"`
+	CertFile                 string  `yaml:"cert_file"                     env:"ETCD_CERT_FILE"`
+	ClusterActiveSize        int     `yaml:"cluster_active_size"           env:"ETCD_CLUSTER_ACTIVE_SIZE"`
+	ClusterRemoveDelay       float64 `yaml:"cluster_remove_delay"          env:"ETCD_CLUSTER_REMOVE_DELAY"`
+	ClusterSyncInterval      float64 `yaml:"cluster_sync_interval"         env:"ETCD_CLUSTER_SYNC_INTERVAL"`
+	CorsOrigins              string  `yaml:"cors"                          env:"ETCD_CORS"`
+	DataDir                  string  `yaml:"data_dir"                      env:"ETCD_DATA_DIR"`
+	Discovery                string  `yaml:"discovery"                     env:"ETCD_DISCOVERY"`
+	DiscoveryFallback        string  `yaml:"discovery_fallback"            env:"ETCD_DISCOVERY_FALLBACK"`
+	DiscoverySRV             string  `yaml:"discovery_srv"                 env:"ETCD_DISCOVERY_SRV"`
+	DiscoveryProxy           string  `yaml:"discovery_proxy"               env:"ETCD_DISCOVERY_PROXY"`
+	ElectionTimeout          int     `yaml:"election_timeout"              env:"ETCD_ELECTION_TIMEOUT"`
+	ForceNewCluster          bool    `yaml:"force_new_cluster"             env:"ETCD_FORCE_NEW_CLUSTER"`
+	GraphiteHost             string  `yaml:"graphite_host"                 env:"ETCD_GRAPHITE_HOST"`
+	HeartbeatInterval        int     `yaml:"heartbeat_interval"            env:"ETCD_HEARTBEAT_INTERVAL"`
+	HTTPReadTimeout          float64 `yaml:"http_read_timeout"             env:"ETCD_HTTP_READ_TIMEOUT"`
+	HTTPWriteTimeout         float64 `yaml:"http_write_timeout"            env:"ETCD_HTTP_WRITE_TIMEOUT"`
+	InitialAdvertisePeerURLs string  `yaml:"initial_advertise_peer_urls"   env:"ETCD_INITIAL_ADVERTISE_PEER_URLS"`
+	InitialCluster           string  `yaml:"initial_cluster"               env:"ETCD_INITIAL_CLUSTER"`
+	InitialClusterState      string  `yaml:"initial_cluster_state"         env:"ETCD_INITIAL_CLUSTER_STATE"`
+	InitialClusterToken      string  `yaml:"initial_cluster_token"         env:"ETCD_INITIAL_CLUSTER_TOKEN"`
+	KeyFile                  string  `yaml:"key_file"                      env:"ETCD_KEY_FILE"`
+	ListenClientURLs         string  `yaml:"listen_client_urls"            env:"ETCD_LISTEN_CLIENT_URLS"`
+	ListenPeerURLs           string  `yaml:"listen_peer_urls"              env:"ETCD_LISTEN_PEER_URLS"`
+	MaxResultBuffer          int     `yaml:"max_result_buffer"             env:"ETCD_MAX_RESULT_BUFFER"`
+	MaxRetryAttempts         int     `yaml:"max_retry_attempts"            env:"ETCD_MAX_RETRY_ATTEMPTS"`
+	MaxSnapshots             int     `yaml:"max_snapshots"                 env:"ETCD_MAX_SNAPSHOTS"`
+	MaxWALs                  int     `yaml:"max_wals"                      env:"ETCD_MAX_WALS"`
+	Name                     string  `yaml:"name"                          env:"ETCD_NAME"`
+	PeerAddr                 string  `yaml:"peer_addr"                     env:"ETCD_PEER_ADDR"`
+	PeerBindAddr             string  `yaml:"peer_bind_addr"                env:"ETCD_PEER_BIND_ADDR"`
+	PeerCAFile               string  `yaml:"peer_ca_file"                  env:"ETCD_PEER_CA_FILE"`
+	PeerCertFile             string  `yaml:"peer_cert_file"                env:"ETCD_PEER_CERT_FILE"`
+	PeerElectionTimeout      int     `yaml:"peer_election_timeout"         env:"ETCD_PEER_ELECTION_TIMEOUT"`
+	PeerHeartbeatInterval    int     `yaml:"peer_heartbeat_interval"       env:"ETCD_PEER_HEARTBEAT_INTERVAL"`
+	PeerKeyFile              string  `yaml:"peer_key_file"                 env:"ETCD_PEER_KEY_FILE"`
+	Peers                    string  `yaml:"peers"                         env:"ETCD_PEERS"`
+	PeersFile                string  `yaml:"peers_file"                    env:"ETCD_PEERS_FILE"`
+	Proxy                    string  `yaml:"proxy"                         env:"ETCD_PROXY"`
+	RetryInterval            float64 `yaml:"retry_interval"                env:"ETCD_RETRY_INTERVAL"`
+	Snapshot                 bool    `yaml:"snapshot"                      env:"ETCD_SNAPSHOT"`
+	SnapshotCount            int     `yaml:"snapshot_count"                env:"ETCD_SNAPSHOTCOUNT"`
+	StrTrace                 string  `yaml:"trace"                         env:"ETCD_TRACE"`
+	Verbose                  bool    `yaml:"verbose"                       env:"ETCD_VERBOSE"`
+	VeryVerbose              bool    `yaml:"very_verbose"                  env:"ETCD_VERY_VERBOSE"`
+	VeryVeryVerbose          bool    `yaml:"very_very_verbose"             env:"ETCD_VERY_VERY_VERBOSE"`
+}

config/file.go

@@ -0,0 +1,23 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type File struct {
+	Encoding           string `yaml:"encoding" valid:"^(base64|b64|gz|gzip|gz\\+base64|gzip\\+base64|gz\\+b64|gzip\\+b64)$"`
+	Content            string `yaml:"content"`
+	Owner              string `yaml:"owner"`
+	Path               string `yaml:"path"`
+	RawFilePermissions string `yaml:"permissions" valid:"^0?[0-7]{3,4}$"`
+}

config/file_test.go

@@ -0,0 +1,71 @@
+/*
+   Copyright 2014 CoreOS, Inc.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package config
+
+import (
+	"testing"
+)
+
+func TestEncodingValid(t *testing.T) {
+	tests := []struct {
+		value string
+
+		isValid bool
+	}{
+		{value: "base64", isValid: true},
+		{value: "b64", isValid: true},
+		{value: "gz", isValid: true},
+		{value: "gzip", isValid: true},
+		{value: "gz+base64", isValid: true},
+		{value: "gzip+base64", isValid: true},
+		{value: "gz+b64", isValid: true},
+		{value: "gzip+b64", isValid: true},
+		{value: "gzzzzbase64", isValid: false},
+		{value: "gzipppbase64", isValid: false},
+		{value: "unknown", isValid: false},
+	}
+
+	for _, tt := range tests {
+		isValid := (nil == AssertStructValid(File{Encoding: tt.value}))
+		if tt.isValid != isValid {
+			t.Errorf("bad assert (%s): want %t, got %t", tt.value, tt.isValid, isValid)
+		}
+	}
+}
+
+func TestRawFilePermissionsValid(t *testing.T) {
+	tests := []struct {
+		value string
+
+		isValid bool
+	}{
+		{value: "744", isValid: true},
+		{value: "0744", isValid: true},
+		{value: "1744", isValid: true},
+		{value: "01744", isValid: true},
+		{value: "11744", isValid: false},
+		{value: "rwxr--r--", isValid: false},
+		{value: "800", isValid: false},
+	}
+
+	for _, tt := range tests {
+		isValid := (nil == AssertStructValid(File{RawFilePermissions: tt.value}))
+		if tt.isValid != isValid {
+			t.Errorf("bad assert (%s): want %t, got %t", tt.value, tt.isValid, isValid)
+		}
+	}
+}

config/flannel.go

@@ -0,0 +1,26 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type Flannel struct {
+	EtcdEndpoints string `yaml:"etcd_endpoints" env:"FLANNELD_ETCD_ENDPOINTS"`
+	EtcdCAFile    string `yaml:"etcd_cafile"    env:"FLANNELD_ETCD_CAFILE"`
+	EtcdCertFile  string `yaml:"etcd_certfile"  env:"FLANNELD_ETCD_CERTFILE"`
+	EtcdKeyFile   string `yaml:"etcd_keyfile"   env:"FLANNELD_ETCD_KEYFILE"`
+	EtcdPrefix    string `yaml:"etcd_prefix"    env:"FLANNELD_ETCD_PREFIX"`
+	IPMasq        string `yaml:"ip_masq"        env:"FLANNELD_IP_MASQ"`
+	SubnetFile    string `yaml:"subnet_file"    env:"FLANNELD_SUBNET_FILE"`
+	Iface         string `yaml:"interface"      env:"FLANNELD_IFACE"`
+}

config/fleet.go

@@ -0,0 +1,29 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type Fleet struct {
+	AgentTTL                string  `yaml:"agent_ttl"                 env:"FLEET_AGENT_TTL"`
+	EngineReconcileInterval float64 `yaml:"engine_reconcile_interval" env:"FLEET_ENGINE_RECONCILE_INTERVAL"`
+	EtcdCAFile              string  `yaml:"etcd_cafile"               env:"FLEET_ETCD_CAFILE"`
+	EtcdCertFile            string  `yaml:"etcd_certfile"             env:"FLEET_ETCD_CERTFILE"`
+	EtcdKeyFile             string  `yaml:"etcd_keyfile"              env:"FLEET_ETCD_KEYFILE"`
+	EtcdKeyPrefix           string  `yaml:"etcd_key_prefix"           env:"FLEET_ETCD_KEY_PREFIX"`
+	EtcdRequestTimeout      float64 `yaml:"etcd_request_timeout"      env:"FLEET_ETCD_REQUEST_TIMEOUT"`
+	EtcdServers             string  `yaml:"etcd_servers"              env:"FLEET_ETCD_SERVERS"`
+	Metadata                string  `yaml:"metadata"                  env:"FLEET_METADATA"`
+	PublicIP                string  `yaml:"public_ip"                 env:"FLEET_PUBLIC_IP"`
+	Verbosity               int     `yaml:"verbosity"                 env:"FLEET_VERBOSITY"`
+}

config/locksmith.go

@@ -0,0 +1,22 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type Locksmith struct {
+	Endpoint     string `yaml:"endpoint"      env:"LOCKSMITHD_ENDPOINT"`
+	EtcdCAFile   string `yaml:"etcd_cafile"   env:"LOCKSMITHD_ETCD_CAFILE"`
+	EtcdCertFile string `yaml:"etcd_certfile" env:"LOCKSMITHD_ETCD_CERTFILE"`
+	EtcdKeyFile  string `yaml:"etcd_keyfile"  env:"LOCKSMITHD_ETCD_KEYFILE"`
+}

config/oem.go

@@ -0,0 +1,23 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type OEM struct {
+	ID           string `yaml:"id"`
+	Name         string `yaml:"name"`
+	VersionID    string `yaml:"version_id"`
+	HomeURL      string `yaml:"home_url"`
+	BugReportURL string `yaml:"bug_report_url"`
+}

config/script.go

@@ -0,0 +1,31 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"strings"
+)
+
+type Script []byte
+
+func IsScript(userdata string) bool {
+	header := strings.SplitN(userdata, "\n", 2)[0]
+	return strings.HasPrefix(header, "#!")
+}
+
+func NewScript(userdata string) (*Script, error) {
+	s := Script(userdata)
+	return &s, nil
+}

config/unit.go

@@ -0,0 +1,30 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type Unit struct {
+	Name    string       `yaml:"name"`
+	Mask    bool         `yaml:"mask"`
+	Enable  bool         `yaml:"enable"`
+	Runtime bool         `yaml:"runtime"`
+	Content string       `yaml:"content"`
+	Command string       `yaml:"command" valid:"^(start|stop|restart|reload|try-restart|reload-or-restart|reload-or-try-restart)$"`
+	DropIns []UnitDropIn `yaml:"drop_ins"`
+}
+
+type UnitDropIn struct {
+	Name    string `yaml:"name"`
+	Content string `yaml:"content"`
+}

config/unit_test.go

@@ -0,0 +1,46 @@
+/*
+   Copyright 2014 CoreOS, Inc.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package config
+
+import (
+	"testing"
+)
+
+func TestCommandValid(t *testing.T) {
+	tests := []struct {
+		value string
+
+		isValid bool
+	}{
+		{value: "start", isValid: true},
+		{value: "stop", isValid: true},
+		{value: "restart", isValid: true},
+		{value: "reload", isValid: true},
+		{value: "try-restart", isValid: true},
+		{value: "reload-or-restart", isValid: true},
+		{value: "reload-or-try-restart", isValid: true},
+		{value: "tryrestart", isValid: false},
+		{value: "unknown", isValid: false},
+	}
+
+	for _, tt := range tests {
+		isValid := (nil == AssertStructValid(Unit{Command: tt.value}))
+		if tt.isValid != isValid {
+			t.Errorf("bad assert (%s): want %t, got %t", tt.value, tt.isValid, isValid)
+		}
+	}
+}

config/update.go

@@ -0,0 +1,21 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type Update struct {
+	RebootStrategy string `yaml:"reboot_strategy" env:"REBOOT_STRATEGY" valid:"^(best-effort|etcd-lock|reboot|off)$"`
+	Group          string `yaml:"group"           env:"GROUP"`
+	Server         string `yaml:"server"          env:"SERVER"`
+}

config/update_test.go

@@ -0,0 +1,43 @@
+/*
+   Copyright 2014 CoreOS, Inc.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package config
+
+import (
+	"testing"
+)
+
+func TestRebootStrategyValid(t *testing.T) {
+	tests := []struct {
+		value string
+
+		isValid bool
+	}{
+		{value: "best-effort", isValid: true},
+		{value: "etcd-lock", isValid: true},
+		{value: "reboot", isValid: true},
+		{value: "off", isValid: true},
+		{value: "besteffort", isValid: false},
+		{value: "unknown", isValid: false},
+	}
+
+	for _, tt := range tests {
+		isValid := (nil == AssertStructValid(Update{RebootStrategy: tt.value}))
+		if tt.isValid != isValid {
+			t.Errorf("bad assert (%s): want %t, got %t", tt.value, tt.isValid, isValid)
+		}
+	}
+}