chore(release): Bump version to v0.6.1

Merge pull request #107 from bcwaldon/locksmith-no-etc
fix(coreos-cloudinit): Ensure /etc/coreos exists before writing to it
2014-05-14 10:52:22 -07:00 · 2014-05-14 10:49:23 -07:00 · 2014-05-14 10:47:18 -07:00 · 2014-05-12 10:51:51 -07:00 · 2014-05-12 10:51:38 -07:00 · 2014-05-10 01:42:57 -07:00
30 changed files with 1069 additions and 175 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 *.swp
 bin/
+coverage/
 pkg/
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -0,0 +1,87 @@
+# How to Contribute
+
+CoreOS projects are [Apache 2.0 licensed](LICENSE) and accept contributions via
+GitHub pull requests.  This document outlines some of the conventions on
+development workflow, commit message formatting, contact points and other
+resources to make it easier to get your contribution accepted.
+
+# Certificate of Origin
+
+By contributing to this project you agree to the Developer Certificate of
+Origin (DCO). This document was created by the Linux Kernel community and is a
+simple statement that you, as a contributor, have the legal right to make the
+contribution. See the [DCO](DCO) file for details.
+
+# Email and Chat
+
+The project currently uses the general CoreOS email list and IRC channel:
+- Email: [coreos-dev](https://groups.google.com/forum/#!forum/coreos-dev)
+- IRC: #[coreos](irc://irc.freenode.org:6667/#coreos) IRC channel on freenode.org
+
+## Getting Started
+
+- Fork the repository on GitHub
+- Read the [README](README.md) for build and test instructions
+- Play with the project, submit bugs, submit patches!
+
+## Contribution Flow
+
+This is a rough outline of what a contributor's workflow looks like:
+
+- Create a topic branch from where you want to base your work (usually master).
+- Make commits of logical units.
+- Make sure your commit messages are in the proper format (see below).
+- Push your changes to a topic branch in your fork of the repository.
+- Make sure the tests pass, and add any new tests as appropriate.
+- Submit a pull request to the original repository.
+
+Thanks for your contributions!
+
+### Format of the Commit Message
+
+We follow a rough convention for commit messages borrowed from AngularJS. This
+is an example of a commit:
+
+```
+    feat(scripts/test-cluster): add a cluster test command
+
+    this uses tmux to setup a test cluster that you can easily kill and
+    start for debugging.
+```
+
+The format can be described more formally as follows:
+
+```
+<type>(<scope>): <subject>
+<BLANK LINE>
+<body>
+<BLANK LINE>
+<footer>
+```
+
+The first line is the subject and should be no longer than 70 characters, the
+second line is always blank, and other lines should be wrapped at 80 characters.
+This allows the message to be easier to read on GitHub as well as in various
+git tools.
+
+#### Subject Line
+
+The subject line contains a succinct description of the change.
+
+#### Allowed `<type>`s
+- *feat* (feature)
+- *fix* (bug fix)
+- *docs* (documentation)
+- *style* (formatting, missing semi colons, …)
+- *refactor*
+- *test* (when adding missing tests)
+- *chore* (maintain)
+
+#### Allowed `<scope>`s
+
+Scopes can anything specifying the place of the commit change in the code base - 
+for example, "api", "store", etc.
+
+
+For more details on the commit format, see the [AngularJS commit style
+guide](https://docs.google.com/a/coreos.com/document/d/1QrDFcIiPjSLDn3EL15IJygNPiHORgU1_OOAqWjiDU5Y/edit#).
--- a/36
+++ b/36
@@ -0,0 +1,36 @@
+Developer Certificate of Origin
+Version 1.1
+
+Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
+660 York Street, Suite 102,
+San Francisco, CA 94110 USA
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+
+Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+(a) The contribution was created in whole or in part by me and I
+    have the right to submit it under the open source license
+    indicated in the file; or
+
+(b) The contribution is based upon previous work that, to the best
+    of my knowledge, is covered under an appropriate open source
+    license and I have the right under that license to submit that
+    work with modifications, whether created in whole or in part
+    by me, under the same open source license (unless I am
+    permitted to submit under a different license), as indicated
+    in the file; or
+
+(c) The contribution was provided directly to me by some other
+    person who certified (a), (b) or (c) and I have not modified
+    it.
+
+(d) I understand and agree that this project and the contribution
+    are public and that a record of the contribution (including all
+    personal information I submit with it, including my sign-off) is
+    maintained indefinitely and may be redistributed consistent with
+    this project or the open source license(s) involved.
--- a/Documentation/cloud-config-oem.md
+++ b/Documentation/cloud-config-oem.md
@@ -0,0 +1,37 @@
+## OEM configuration
+
+The `coreos.oem.*` parameters follow the [os-release spec][os-release], but have been repurposed as a way for coreos-cloudinit to know about the OEM partition on this machine. Customizing this section is only needed when generating a new OEM of CoreOS from the SDK. The fields include:
+
+- **id**: Lowercase string identifying the OEM
+- **name**: Human-friendly string representing the OEM
+- **version-id**: Lowercase string identifying the version of the OEM
+- **home-url**: Link to the homepage of the provider or OEM
+- **bug-report-url**: Link to a place to file bug reports about this OEM
+
+coreos-cloudinit renders these fields to `/etc/oem-release`.
+If no **id** field is provided, coreos-cloudinit will ignore this section.
+
+For example, the following cloud-config document...
+
+```
+#cloud-config
+coreos:
+  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
+```
+
+...would be rendered to the following `/etc/oem-release`:
+
+```
+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"
+```
+
+[os-release]: http://www.freedesktop.org/software/systemd/man/os-release.html
--- a/Documentation/cloud-config.md
+++ b/Documentation/cloud-config.md
@@ -1,16 +1,45 @@
-# Customize with Cloud-Config
+# Using Cloud-Config

-CoreOS allows you to configure networking, create users, launch systemd units on startup and more. We've designed our implementation to allow the same cloud-config file to work across all of our supported platforms.
+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. 

-Only a subset of [cloud-config functionality][cloud-config] is implemented. A set of custom parameters were added to the cloud-config format that are specific to CoreOS. An example file containing all available options can be found at the bottom of this page.
+## Configuration File

+The file used by this system initialization program is called a "cloud-config" file. It is inspired by the [cloud-init][cloud-init] project's [cloud-config][cloud-config] file. which is "the defacto multi-distribution package that handles early initialization of a cloud instance" ([cloud-init docs][cloud-init-docs]). Because the cloud-init project includes tools which aren't used by CoreOS, only the relevant subset of its configuration items will be implemented in our cloud-config file. In addition to those, we added a few CoreOS-specific items, such as etcd configuration, OEM definition, and systemd units.
+
+We've designed our implementation to allow the same cloud-config file to work across all of our supported platforms.
+
+[cloud-init]: https://launchpad.net/cloud-init
+[cloud-init-docs]: http://cloudinit.readthedocs.org/en/latest/index.html
 [cloud-config]: http://cloudinit.readthedocs.org/en/latest/topics/format.html#cloud-config-data

-## CoreOS Parameters
+### File Format

-### coreos.etcd
+The cloud-config file uses the [YAML][yaml] file format, which uses whitespace and new-lines to delimit lists, associative arrays, and values.

-The `coreos.etcd.*` options are translated to a partial systemd unit acting as an etcd configuration file.
+A cloud-config file should contain an associative array which has zero or more of the following keys:
+
+- `coreos`
+- `ssh_authorized_keys`
+- `hostname`
+- `users`
+- `write_files`
+- `manage_etc_hosts`
+
+The expected values for these keys are defined in the rest of this document.
+
+[yaml]: https://en.wikipedia.org/wiki/YAML
+
+### Providing Cloud-Config with Config-Drive
+
+CoreOS tries to conform to each platform's native method to provide user data. Each cloud provider tends to be unique, but this complexity has been abstracted by CoreOS. You can view each platform's instructions on their documentation pages. The most universal way to provide cloud-config is [via config-drive](https://github.com/coreos/coreos-cloudinit/blob/master/Documentation/config-drive.md), which attaches a read-only device to the machine, that contains your cloud-config file.
+
+## Configuration Parameters
+
+### coreos
+
+#### etcd
+
+The `coreos.etcd.*` parameters will be translated to a partial systemd unit acting as an etcd configuration file.
 We can use the templating feature of coreos-cloudinit to automate etcd configuration with the `$private_ipv4` and `$public_ipv4` fields. For example, the following cloud-config document...

 ```
@@ -36,57 +65,35 @@ Environment="ETCD_ADDR=203.0.113.29:4001"
 Environment="ETCD_PEER_ADDR=192.0.2.13:7001"
 ```

-For more information about the available configuration options, see the [etcd documentation][etcd-config].
+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.

 [etcd-config]: https://github.com/coreos/etcd/blob/master/Documentation/configuration.md

-### coreos.oem
+#### update

-These fields are borrowed from the [os-release spec][os-release] and repurposed
-as a way for coreos-cloudinit to know about the OEM partition on this machine:
+The `coreos.update.*` parameters manipulate settings related to how CoreOS instances are updated.

- **id**: Lowercase string identifying the OEM
- **name**: Human-friendly string representing the OEM
- **version-id**: Lowercase string identifying the version of the OEM
- **home-url**: Link to the homepage of the provider or OEM
- **bug-report-url**: Link to a place to file bug reports about this OEM
-
-coreos-cloudinit renders these fields to `/etc/oem-release`.
-If no **id** field is provided, coreos-cloudinit will ignore this section.
-
-For example, the following cloud-config document...
+- **reboot-strategy**: One of "reboot", "etcd-lock", "best-effort" or "off" for controlling when reboots are issued after an update is performed.
+  - _reboot_: Reboot immediately after an update is applied.
+  - _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).

 ```
 #cloud-config
 coreos:
-  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
+  update:
+    reboot-strategy: etcd-lock
 ```

-...would be rendered to the following `/etc/oem-release`:
+#### units

-```
-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"
-```
-
-[os-release]: http://www.freedesktop.org/software/systemd/man/os-release.html
-
-### coreos.units
-
-Arbitrary systemd units may be provided in the `coreos.units` attribute.
-`coreos.units` is a list of objects with the following fields:
+The `coreos.units.*` parameters define a list of arbitrary systemd units to start. 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 analagous to the `--runtime` argument to `systemd 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.
 - **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.

@@ -102,6 +109,7 @@ Write a unit to disk, automatically starting it.
 coreos:
    units:
      - name: docker-redis.service
+        command: start
        content: |
          [Unit]
          Description=Redis container
@@ -130,14 +138,12 @@ coreos:
        command: start
 ```

-## Cloud-Config Parameters
-
 ### ssh_authorized_keys

-Provided public SSH keys will be authorized for the `core` user.
+The `ssh_authorized_keys` parameter adds public SSH keys which will be authorized for the `core` user.

 The keys will be named "coreos-cloudinit" by default.
-Override this with the `--ssh-key-name` flag when calling `coreos-cloudinit`.
+Override this by using the `--ssh-key-name` flag when calling `coreos-cloudinit`.

 ```
 #cloud-config
@@ -148,7 +154,7 @@ ssh_authorized_keys:

 ### hostname

-The provided value will be used to set the system's hostname.
+The `hostname` parameter defines the system's hostname.
 This is the local part of a fully-qualified domain name (i.e. `foo` in `foo.example.com`).

 ```
@@ -159,8 +165,7 @@ hostname: coreos1

 ### users

-Add or modify users with the `users` directive by providing a list of user objects, each consisting of the following fields.
-Each field is optional and of type string unless otherwise noted.
+The `users` parameter adds or modifies the specified list of users. Each user is an object which consists of the following fields. Each field is optional and of type string unless otherwise noted.
 All but the `passwd` and `ssh-authorized-keys` fields will be ignored if the user already exists.

 - **name**: Required. Login name of user
@@ -192,7 +197,7 @@ users:
  - name: elroy
    passwd: $6$5s2u6/jR$un0AvWnqilcgaNB3Mkxd5yYv6mTlWfOoCYHZmfi3LDKVltj.E8XNKEcwWm...
    groups:
-      - staff
+      - sudo
      - docker
    ssh-authorized-keys:
      - ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC0g+ZTxC7weoIJLUafOgrm+h...
@@ -218,9 +223,11 @@ perl -e 'print crypt("password","\$6\$SALT\$") . "\n"'

 Using a higher number of rounds will help create more secure passwords, but given enough time, password hashes can be reversed.  On most RPM based distributions there is a tool called mkpasswd available in the `expect` package, but this does not handle "rounds" nor advanced hashing algorithms. 

-#### Retrieving ssh authorized keys from a GitHub user
+#### Retrieving SSH Authorized Keys

-Using the field `coreos-ssh-import-github` you can make coreos-cloudinit to add the public ssh keys from a GitHub user as authorized keys to a server.
+##### From a GitHub User
+
+Using the `coreos-ssh-import-github` field, we can import public SSH keys from a GitHub user to use as authorized keys to a server.

 ```
 #cloud-config
@@ -230,10 +237,10 @@ users:
    coreos-ssh-import-github: elroy
 ```

-#### Retrieving ssh authorized keys from an http endpoint
+##### From an HTTP Endpoint

-coreos-cloudinit can also pull public SSH keys from any http endpoint that matches [GitHub's API response format](https://developer.github.com/v3/users/keys/#list-public-keys-for-a-user).
-For example, if you have an installation of GitHub Enterprise, you can provide a complete url with an authentication token:
+We can also pull public SSH keys from any HTTP endpoint which matches [GitHub's API response format](https://developer.github.com/v3/users/keys/#list-public-keys-for-a-user).
+For example, if you have an installation of GitHub Enterprise, you can provide a complete URL with an authentication token:

 ```
 #cloud-config
@@ -243,7 +250,7 @@ users:
    coreos-ssh-import-url: https://token:<OAUTH-TOKEN>@github-enterprise.example.com/users/elroy/keys
 ```

-You can also provide any url which response matches that json format for public keys:
+You can also specify any URL whose response matches the JSON format for public keys:

 ```
 #cloud-config
@@ -255,8 +262,7 @@ users:

 ### write_files

-Inject an arbitrary set of files to the local filesystem.
-Provide a list of objects with the following attributes:
+The `write-file` parameter defines a list of files to create on the local filesystem. Each file is represented as an associative array which has the following keys:

 - **path**: Absolute location on disk where contents should be written
 - **content**: Data to write at the provided `path`
@@ -266,10 +272,20 @@ Provide a list of objects with the following attributes:
 Explicitly not implemented is the **encoding** attribute.
 The **content** field must represent exactly what should be written to disk.

+```
+#cloud-config
+write_files:
+  - path: /etc/fleet/fleet.conf
+    permissions: 0644
+    content: |
+      verbosity=1
+      metadata="region=us-west,type=ssd"
+```
+
 ### manage_etc_hosts

-Have coreos-cloudinit manage your /etc/hosts file for local name resolution.
-The only supported value is "localhost" which will cause your system's hostname
+The `manage_etc_hosts` parameter configures the contents of the `/etc/hosts` file, which is used for local name resolution.
+Currently, the only supported value is "localhost" which will cause your system's hostname
 to resolve to "127.0.0.1".  This is helpful when the host does not have DNS
 infrastructure in place to resolve its own hostname, for example, when using Vagrant.

--- a/202
+++ b/202
@@ -0,0 +1,202 @@
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+                        http://www.apache.org/licenses/
+
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+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright {yyyy} {name of copyright owner}
+
+   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.
+
--- a/5
+++ b/5
@@ -0,0 +1,5 @@
+CoreOS Project
+Copyright 2014 CoreOS, Inc
+
+This product includes software developed at CoreOS, Inc.
+(http://www.coreos.com/).
--- a/5
+++ b/5
@@ -1,6 +1,9 @@
 #!/bin/bash -e

+ORG_PATH="github.com/coreos"
+REPO_PATH="${ORG_PATH}/coreos-cloudinit"
+
 export GOBIN=${PWD}/bin
 export GOPATH=${PWD}

-go build -o bin/coreos-cloudinit github.com/coreos/coreos-cloudinit
+go build -o bin/coreos-cloudinit ${REPO_PATH}
--- a/coreos-cloudinit.go
+++ b/coreos-cloudinit.go
@@ -5,14 +5,13 @@ import (
 	"fmt"
 	"log"
 	"os"
-	"strings"

 	"github.com/coreos/coreos-cloudinit/datasource"
 	"github.com/coreos/coreos-cloudinit/initialize"
 	"github.com/coreos/coreos-cloudinit/system"
 )

-const version = "0.4.0+git"
+const version = "0.6.1"

 func main() {
 	var printVersion bool
@@ -27,6 +26,9 @@ func main() {
 	var url string
 	flag.StringVar(&url, "from-url", "", "Download user-data from provided url")

+	var useProcCmdline bool
+	flag.BoolVar(&useProcCmdline, "from-proc-cmdline", false, fmt.Sprintf("Parse %s for '%s=<url>', using the cloud-config served by an HTTP GET to <url>", datasource.ProcCmdlineLocation, datasource.ProcCmdlineCloudConfigFlag))
+
 	var workspace string
 	flag.StringVar(&workspace, "workspace", "/var/lib/coreos-cloudinit", "Base directory coreos-cloudinit should use to store data")

@@ -40,18 +42,15 @@ func main() {
 		os.Exit(0)
 	}

-	if file != "" && url != "" {
-		fmt.Println("Provide one of --from-file or --from-url")
-		os.Exit(1)
-	}
-
 	var ds datasource.Datasource
 	if file != "" {
 		ds = datasource.NewLocalFile(file)
 	} else if url != "" {
 		ds = datasource.NewMetadataService(url)
+	} else if useProcCmdline {
+		ds = datasource.NewProcCmdline()
 	} else {
-		fmt.Println("Provide one of --from-file or --from-url")
+		fmt.Println("Provide one of --from-file, --from-url or --from-proc-cmdline")
 		os.Exit(1)
 	}

@@ -76,7 +75,7 @@ func main() {
 	userdata := string(userdataBytes)
 	userdata = env.Apply(userdata)

-	parsed, err := ParseUserData(userdata)
+	parsed, err := initialize.ParseUserData(userdata)
 	if err != nil {
 		log.Printf("Failed parsing user-data: %v", err)
 		if ignoreFailure {
@@ -108,22 +107,3 @@ func main() {
 		log.Fatalf("Failed resolving user-data: %v", err)
 	}
 }
-
-func ParseUserData(contents string) (interface{}, error) {
-	header := strings.SplitN(contents, "\n", 2)[0]
-
-	if strings.HasPrefix(header, "#!") {
-		log.Printf("Parsing user-data as script")
-		return system.Script(contents), nil
-
-	} else if header == "#cloud-config" {
-		log.Printf("Parsing user-data as cloud-config")
-		cfg, err := initialize.NewCloudConfig(contents)
-		if err != nil {
-			log.Fatal(err.Error())
-		}
-		return *cfg, nil
-	} else {
-		return nil, fmt.Errorf("Unrecognized user-data header: %s", header)
-	}
-}
--- a/27
+++ b/27
@@ -0,0 +1,27 @@
+#!/bin/bash -e
+#
+# Generate coverage HTML for a package
+# e.g. PKG=./initialize ./cover
+#
+
+if [ -z "$PKG" ]; then
+	echo "cover only works with a single package, sorry"
+	exit 255
+fi
+
+COVEROUT="coverage"
+
+if ! [ -d "$COVEROUT" ]; then
+	mkdir "$COVEROUT"
+fi
+
+# strip out slashes and dots
+COVERPKG=${PKG//\//}
+COVERPKG=${COVERPKG//./}
+
+# generate arg for "go test"
+export COVER="-coverprofile ${COVEROUT}/${COVERPKG}.out"
+
+source ./test
+
+go tool cover -html=${COVEROUT}/${COVERPKG}.out
--- a/datasource/datasource.go
+++ b/datasource/datasource.go
@@ -1,6 +1,31 @@
 package datasource

+import (
+	"io/ioutil"
+	"net/http"
+)
+
 type Datasource interface {
 	Fetch() ([]byte, error)
 	Type()  string
 }
+
+func fetchURL(url string) ([]byte, error) {
+	client := http.Client{}
+	resp, err := client.Get(url)
+	if err != nil {
+		return []byte{}, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode / 100 != 2 {
+		return []byte{}, nil
+	}
+
+	respBytes, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	return respBytes, nil
+}
--- a/datasource/metadata_service.go
+++ b/datasource/metadata_service.go
@@ -1,36 +1,15 @@
 package datasource

-import (
-	"io/ioutil"
-	"net/http"
-)
-
 type metadataService struct {
-	url    string
-	client http.Client
+	url string
 }

 func NewMetadataService(url string) *metadataService {
-	return &metadataService{url, http.Client{}}
+	return &metadataService{url}
 }

 func (ms *metadataService) Fetch() ([]byte, error) {
-	resp, err := ms.client.Get(ms.url)
-	if err != nil {
-		return []byte{}, err
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode / 100 != 2 {
-		return []byte{}, nil
-	}
-
-	respBytes, err := ioutil.ReadAll(resp.Body)
-	if err != nil {
-		return nil, err
-	}
-
-	return respBytes, nil
+	return fetchURL(ms.url)
 }

 func (ms *metadataService) Type() string {
--- a/datasource/proc_cmdline.go
+++ b/datasource/proc_cmdline.go
@@ -0,0 +1,66 @@
+package datasource
+
+import (
+	"errors"
+	"io/ioutil"
+	"log"
+	"strings"
+)
+
+const (
+	ProcCmdlineLocation        = "/proc/cmdline"
+	ProcCmdlineCloudConfigFlag = "cloud-config-url"
+)
+
+type procCmdline struct{}
+
+func NewProcCmdline() *procCmdline {
+	return &procCmdline{}
+}
+
+func (self *procCmdline) Fetch() ([]byte, error) {
+	cmdline, err := ioutil.ReadFile(ProcCmdlineLocation)
+	if err != nil {
+		return nil, err
+	}
+
+	url, err := findCloudConfigURL(string(cmdline))
+	if err != nil {
+		return nil, err
+	}
+
+	cfg, err := fetchURL(url)
+	if err != nil {
+		return nil, err
+	}
+
+	return cfg, nil
+}
+
+func (self *procCmdline) Type() string {
+	return "proc-cmdline"
+}
+
+func findCloudConfigURL(input string) (url string, err error) {
+	err = errors.New("cloud-config-url not found")
+	for _, token := range strings.Split(input, " ") {
+		parts := strings.SplitN(token, "=", 2)
+
+		key := parts[0]
+		key = strings.Replace(key, "_", "-", -1)
+
+		if key != "cloud-config-url" {
+			continue
+		}
+
+		if len(parts) != 2 {
+			log.Printf("Found cloud-config-url in /proc/cmdline with no value, ignoring.")
+			continue
+		}
+
+		url = parts[1]
+		err = nil
+	}
+
+	return
+}
--- a/datasource/proc_cmdline_test.go
+++ b/datasource/proc_cmdline_test.go
@@ -0,0 +1,47 @@
+package datasource
+
+import (
+	"testing"
+)
+
+func TestParseCmdlineCloudConfigFound(t *testing.T) {
+	tests := []struct {
+		input  string
+		expect string
+	}{
+		{
+			"cloud-config-url=example.com",
+			"example.com",
+		},
+		{
+			"cloud_config_url=example.com",
+			"example.com",
+		},
+		{
+			"cloud-config-url cloud-config-url=example.com",
+			"example.com",
+		},
+		{
+			"cloud-config-url= cloud-config-url=example.com",
+			"example.com",
+		},
+		{
+			"cloud-config-url=one.example.com cloud-config-url=two.example.com",
+			"two.example.com",
+		},
+		{
+			"foo=bar cloud-config-url=example.com ping=pong",
+			"example.com",
+		},
+	}
+
+	for i, tt := range tests {
+		output, err := findCloudConfigURL(tt.input)
+		if output != tt.expect {
+			t.Errorf("Test case %d failed: %s != %s", i, output, tt.expect)
+		}
+		if err != nil {
+			t.Errorf("Test case %d produced error: %v", i, err)
+		}
+	}
+}
--- a/initialize/config.go
+++ b/initialize/config.go
@@ -13,9 +13,10 @@ import (
 type CloudConfig struct {
 	SSHAuthorizedKeys []string `yaml:"ssh_authorized_keys"`
 	Coreos            struct {
-		Etcd  EtcdEnvironment
-		Units []system.Unit
-		OEM   OEMRelease
+		Etcd   EtcdEnvironment
+		Update map[string]string
+		Units  []system.Unit
+		OEM    OEMRelease
 	}
 	WriteFiles     []system.File `yaml:"write_files"`
 	Hostname       string
@@ -128,18 +129,26 @@ func Apply(cfg CloudConfig, env *Environment) error {
 		log.Printf("Wrote etcd config file to filesystem")
 	}

+	if s, ok := cfg.Coreos.Update["reboot-strategy"]; ok {
+		if err := WriteLocksmithConfig(s, env.Root()); err != nil {
+			log.Fatalf("Failed to write locksmith config to filesystem: %v", err)
+		}
+		log.Printf("Wrote locksmith config file to filesystem")
+	}
+
 	if len(cfg.Coreos.Units) > 0 {
 		commands := make(map[string]string, 0)
-
 		for _, unit := range cfg.Coreos.Units {
+			dst := system.UnitDestination(&unit, env.Root())
 			if unit.Content != "" {
-				log.Printf("Writing unit %s to filesystem", unit.Name)
-				dst, err := system.PlaceUnit(&unit, env.Root())
-				if err != nil {
+				log.Printf("Writing unit %s to filesystem at path %s", unit.Name, dst)
+				if err := system.PlaceUnit(&unit, dst); err != nil {
 					return err
 				}
 				log.Printf("Placed unit %s at %s", unit.Name, dst)
+			}

+			if unit.Enable {
 				if unit.Group() != "network" {
 					log.Printf("Enabling unit file %s", dst)
 					if err := system.EnableUnitFile(dst, unit.Runtime); err != nil {
@@ -160,6 +169,10 @@ func Apply(cfg CloudConfig, env *Environment) error {
 			}
 		}

+		if err := system.DaemonReload(); err != nil {
+			log.Fatalf("Failed systemd daemon-reload: %v", err)
+		}
+
 		for unit, command := range commands {
 			log.Printf("Calling unit command '%s %s'", command, unit)
 			res, err := system.RunUnitCommand(command, unit)
--- a/initialize/config_test.go
+++ b/initialize/config_test.go
@@ -32,6 +32,8 @@ func TestCloudConfig(t *testing.T) {
 coreos: 
  etcd:
    discovery: "https://discovery.etcd.io/827c73219eeb2fa5530027c37bf18877"
+  update:
+    reboot-strategy: reboot
  units:
    - name: 50-eth0.network
      runtime: yes
@@ -129,6 +131,9 @@ Address=10.209.171.177/19
 	if cfg.Hostname != "trontastic" {
 		t.Errorf("Failed to parse hostname")
 	}
+	if cfg.Coreos.Update["reboot-strategy"] != "reboot" {
+		t.Errorf("Failed to parse locksmith strategy")
+	}
 }

 // Assert that our interface conversion doesn't panic
--- a/initialize/etcd_test.go
+++ b/initialize/etcd_test.go
@@ -5,7 +5,6 @@ import (
 	"os"
 	"os/exec"
 	"path"
-	"syscall"
 	"testing"
 )

@@ -60,15 +59,15 @@ Environment="ETCD_PEER_BIND_ADDR=127.0.0.1:7002"

 func TestEtcdEnvironmentWrittenToDisk(t *testing.T) {
 	ec := EtcdEnvironment{
-		"name": "node001",
-		"discovery": "http://disco.example.com/foobar",
+		"name":           "node001",
+		"discovery":      "http://disco.example.com/foobar",
 		"peer-bind-addr": "127.0.0.1:7002",
 	}
 	dir, err := ioutil.TempDir(os.TempDir(), "coreos-cloudinit-")
 	if err != nil {
 		t.Fatalf("Unable to create tempdir: %v", err)
 	}
-	defer syscall.Rmdir(dir)
+	defer os.RemoveAll(dir)

 	if err := WriteEtcdEnvironment(ec, dir); err != nil {
 		t.Fatalf("Processing of EtcdEnvironment failed: %v", err)
@@ -106,7 +105,7 @@ func TestEtcdEnvironmentWrittenToDiskDefaultToMachineID(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Unable to create tempdir: %v", err)
 	}
-	defer syscall.Rmdir(dir)
+	defer os.RemoveAll(dir)

 	os.Mkdir(path.Join(dir, "etc"), os.FileMode(0755))
 	err = ioutil.WriteFile(path.Join(dir, "etc", "machine-id"), []byte("node007"), os.FileMode(0444))
@@ -134,6 +133,6 @@ Environment="ETCD_NAME=node007"
 }

 func rmdir(path string) error {
-    cmd := exec.Command("rm", "-rf", path)
-    return cmd.Run()
+	cmd := exec.Command("rm", "-rf", path)
+	return cmd.Run()
 }
--- a/initialize/locksmith.go
+++ b/initialize/locksmith.go
@@ -0,0 +1,85 @@
+package initialize
+
+import (
+	"bufio"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path"
+	"strings"
+
+	"github.com/coreos/coreos-cloudinit/system"
+)
+
+const locksmithUnit = "locksmithd.service"
+
+// addStrategy creates an `/etc/coreos/update.conf` file with the requested
+// strategy via rewriting the file on disk or by starting from
+// `/usr/share/coreos/update.conf`.
+func addStrategy(strategy string, root string) error {
+	etcUpdate := path.Join(root, "etc", "coreos", "update.conf")
+	usrUpdate := path.Join(root, "usr", "share", "coreos", "update.conf")
+
+	// Ensure /etc/coreos/ exists before attempting to write a file in it
+	os.MkdirAll(path.Join(root, "etc", "coreos"), 0755)
+
+	tmp, err := ioutil.TempFile(path.Join(root, "etc", "coreos"), ".update.conf")
+	if err != nil {
+		return err
+	}
+	err = tmp.Chmod(0644)
+	if err != nil {
+		return err
+	}
+
+	conf, err := os.Open(etcUpdate)
+	if os.IsNotExist(err) {
+		conf, err = os.Open(usrUpdate)
+		if err != nil {
+			return err
+		}
+	}
+
+	scanner := bufio.NewScanner(conf)
+
+	sawStrat := false
+	stratLine := "REBOOT_STRATEGY="+strategy
+	for scanner.Scan() {
+		line := scanner.Text()
+		if strings.HasPrefix(line, "REBOOT_STRATEGY=") {
+			line = stratLine
+			sawStrat = true
+		}
+		fmt.Fprintln(tmp, line)
+		if err := scanner.Err(); err != nil {
+			return err
+		}
+	}
+
+	if !sawStrat {
+		fmt.Fprintln(tmp, stratLine)
+	}
+
+	return os.Rename(tmp.Name(), etcUpdate)
+}
+
+// WriteLocksmithConfig updates the `update.conf` file with a REBOOT_STRATEGY for locksmith.
+func WriteLocksmithConfig(strategy string, root string) error {
+	cmd := "restart"
+	if strategy == "off" {
+		err := system.MaskUnit(locksmithUnit, root)
+		if err != nil {
+			return err
+		}
+		cmd = "stop"
+	} else {
+		return addStrategy(strategy, root)
+	}
+	if err := system.DaemonReload(); err != nil {
+		return err
+	}
+	if _, err := system.RunUnitCommand(cmd, locksmithUnit); err != nil {
+		return err
+	}
+	return nil
+}
--- a/initialize/locksmith_test.go
+++ b/initialize/locksmith_test.go
@@ -0,0 +1,91 @@
+package initialize
+
+import (
+	"io/ioutil"
+	"os"
+	"path"
+	"testing"
+)
+
+const (
+	base = `SERVER=https://example.com
+GROUP=thegroupc`
+
+	configured = base + `
+REBOOT_STRATEGY=awesome
+`
+
+	expected = base + `
+REBOOT_STRATEGY=etcd-lock
+`
+)
+
+func setupFixtures(dir string) {
+	os.MkdirAll(path.Join(dir, "usr", "share", "coreos"), 0755)
+	os.MkdirAll(path.Join(dir, "run", "systemd", "system"), 0755)
+
+	ioutil.WriteFile(path.Join(dir, "usr", "share", "coreos", "update.conf"), []byte(base), 0644)
+}
+
+func TestLocksmithEnvironmentWrittenToDisk(t *testing.T) {
+	dir, err := ioutil.TempDir(os.TempDir(), "coreos-cloudinit-")
+	if err != nil {
+		t.Fatalf("Unable to create tempdir: %v", err)
+	}
+	defer os.RemoveAll(dir)
+	setupFixtures(dir)
+
+	for i := 0; i < 2; i++ {
+		if i == 1 {
+			err = ioutil.WriteFile(path.Join(dir, "etc", "coreos", "update.conf"), []byte(configured), 0644)
+			if err != nil {
+				t.Fatal(err)
+			}
+		}
+
+		if err := WriteLocksmithConfig("etcd-lock", dir); err != nil {
+			t.Fatalf("Processing of LocksmithEnvironment failed: %v", err)
+		}
+
+		fullPath := path.Join(dir, "etc", "coreos", "update.conf")
+
+		fi, err := os.Stat(fullPath)
+		if err != nil {
+			t.Fatalf("Unable to stat file: %v", err)
+		}
+
+		if fi.Mode() != os.FileMode(0644) {
+			t.Errorf("File has incorrect mode: %v", fi.Mode())
+		}
+
+		contents, err := ioutil.ReadFile(fullPath)
+		if err != nil {
+			t.Fatalf("Unable to read expected file: %v", err)
+		}
+
+		if string(contents) != expected {
+			t.Fatalf("File has incorrect contents, got %v, wanted %v", string(contents), expected)
+		}
+	}
+}
+func TestLocksmithEnvironmentMasked(t *testing.T) {
+	dir, err := ioutil.TempDir(os.TempDir(), "coreos-cloudinit-")
+	if err != nil {
+		t.Fatalf("Unable to create tempdir: %v", err)
+	}
+	defer os.RemoveAll(dir)
+	setupFixtures(dir)
+
+	if err := WriteLocksmithConfig("off", dir); err != nil {
+		t.Fatalf("Processing of LocksmithEnvironment failed: %v", err)
+	}
+
+	fullPath := path.Join(dir, "etc", "systemd", "system", "locksmithd.service")
+	target, err := os.Readlink(fullPath)
+	if err != nil {
+		t.Fatalf("Unable to read link %v", err)
+	}
+	if target != "/dev/null" {
+		t.Fatalf("Locksmith not masked, unit target %v", target)
+	}
+}
--- a/initialize/oem_test.go
+++ b/initialize/oem_test.go
@@ -4,7 +4,6 @@ import (
 	"io/ioutil"
 	"os"
 	"path"
-	"syscall"
 	"testing"
 )

@@ -20,7 +19,7 @@ func TestOEMReleaseWrittenToDisk(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Unable to create tempdir: %v", err)
 	}
-	defer syscall.Rmdir(dir)
+	defer os.RemoveAll(dir)

 	if err := WriteOEMRelease(&oem, dir); err != nil {
 		t.Fatalf("Processing of EtcdEnvironment failed: %v", err)
--- a/initialize/user_data.go
+++ b/initialize/user_data.go
@@ -0,0 +1,33 @@
+package initialize
+
+import (
+	"fmt"
+	"log"
+	"strings"
+
+	"github.com/coreos/coreos-cloudinit/system"
+)
+
+func ParseUserData(contents string) (interface{}, error) {
+	header := strings.SplitN(contents, "\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 goyaml, which correctly handles CRLF.
+	header = strings.TrimSpace(header)
+
+	if strings.HasPrefix(header, "#!") {
+		log.Printf("Parsing user-data as script")
+		return system.Script(contents), nil
+
+	} else if header == "#cloud-config" {
+		log.Printf("Parsing user-data as cloud-config")
+		cfg, err := NewCloudConfig(contents)
+		if err != nil {
+			log.Fatal(err.Error())
+		}
+		return *cfg, nil
+	} else {
+		return nil, fmt.Errorf("Unrecognized user-data header: %s", header)
+	}
+}
--- a/initialize/user_data_test.go
+++ b/initialize/user_data_test.go
@@ -0,0 +1,49 @@
+package initialize
+
+import (
+	"testing"
+)
+
+func TestParseHeaderCRLF(t *testing.T) {
+	configs := []string{
+		"#cloud-config\nfoo: bar",
+		"#cloud-config\r\nfoo: bar",
+	}
+
+	for i, config := range configs {
+		_, err := ParseUserData(config)
+		if err != nil {
+			t.Errorf("Failed parsing config %d: %v", i, err)
+		}
+	}
+
+	scripts := []string{
+		"#!bin/bash\necho foo",
+		"#!bin/bash\r\necho foo",
+	}
+
+	for i, script := range scripts {
+		_, err := ParseUserData(script)
+		if err != nil {
+			t.Errorf("Failed parsing script %d: %v", i, err)
+		}
+	}
+}
+
+func TestParseConfigCRLF(t *testing.T) {
+	contents := "#cloud-config\r\nhostname: foo\r\nssh_authorized_keys:\r\n  - foobar\r\n"
+	ud, err := ParseUserData(contents)
+	if err != nil {
+		t.Fatalf("Failed parsing config: %v", err)
+	}
+
+	cfg := ud.(CloudConfig)
+
+	if cfg.Hostname != "foo" {
+		t.Error("Failed parsing hostname from config")
+	}
+
+	if len(cfg.SSHAuthorizedKeys) != 1 {
+		t.Error("Parsed incorrect number of SSH keys")
+	}
+}
--- a/system/file.go
+++ b/system/file.go
@@ -11,10 +11,10 @@ import (
 )

 type File struct {
-	Encoding    string
-	Content     string
-	Owner       string
-	Path        string
+	Encoding           string
+	Content            string
+	Owner              string
+	Path               string
 	RawFilePermissions string `yaml:"permissions"`
 }

@@ -31,7 +31,6 @@ func (f *File) Permissions() (os.FileMode, error) {
 	return os.FileMode(perm), nil
 }

-
 func WriteFile(f *File) error {
 	if f.Encoding != "" {
 		return fmt.Errorf("Unable to write file with encoding %s", f.Encoding)
--- a/system/systemd.go
+++ b/system/systemd.go
@@ -19,6 +19,7 @@ const fakeMachineID = "42000000000000000000000000000042"

 type Unit struct {
 	Name    string
+	Enable  bool
 	Runtime bool
 	Content string
 	Command string
@@ -41,33 +42,40 @@ func (u *Unit) Group() (group string) {

 type Script []byte

-func PlaceUnit(u *Unit, root string) (string, error) {
+// UnitDestination builds the appropriate absolte file path for
+// the given unit. The root argument indicates the effective base
+// directory of the system (similar to a chroot).
+func UnitDestination(u *Unit, root string) string {
 	dir := "etc"
 	if u.Runtime {
 		dir = "run"
 	}

-	dst := path.Join(root, dir, "systemd", u.Group())
-	if _, err := os.Stat(dst); os.IsNotExist(err) {
-		if err := os.MkdirAll(dst, os.FileMode(0755)); err != nil {
-			return "", err
+	return path.Join(root, dir, "systemd", u.Group(), u.Name)
+}
+
+// PlaceUnit writes a unit file at the provided destination, creating
+// parent directories as necessary.
+func PlaceUnit(u *Unit, dst string) error {
+	dir := filepath.Dir(dst)
+	if _, err := os.Stat(dir); os.IsNotExist(err) {
+		if err := os.MkdirAll(dir, os.FileMode(0755)); err != nil {
+			return err
 		}
 	}

-	dst = path.Join(dst, u.Name)
-
 	file := File{
-		Path: dst,
-		Content: u.Content,
+		Path:               dst,
+		Content:            u.Content,
 		RawFilePermissions: "0644",
 	}

 	err := WriteFile(&file)
 	if err != nil {
-		return "", err
+		return err
 	}

-	return dst, nil
+	return nil
 }

 func EnableUnitFile(file string, runtime bool) error {
@@ -157,3 +165,11 @@ func MachineID(root string) string {

 	return id
 }
+
+func MaskUnit(unit string, root string) error {
+	masked := path.Join(root, "etc", "systemd", "system", unit)
+	if err := os.MkdirAll(path.Dir(masked), os.FileMode(0755)); err != nil {
+		return err
+	}
+	return os.Symlink("/dev/null", masked)
+}
--- a/system/systemd_test.go
+++ b/system/systemd_test.go
@@ -4,15 +4,14 @@ import (
 	"io/ioutil"
 	"os"
 	"path"
-	"syscall"
 	"testing"
 )

 func TestPlaceNetworkUnit(t *testing.T) {
 	u := Unit{
-		Name: "50-eth0.network",
-      Runtime: true,
-      Content: `[Match]
+		Name:    "50-eth0.network",
+		Runtime: true,
+		Content: `[Match]
 Name=eth47

 [Network]
@@ -24,14 +23,19 @@ Address=10.209.171.177/19
 	if err != nil {
 		t.Fatalf("Unable to create tempdir: %v", err)
 	}
-	defer syscall.Rmdir(dir)
+	defer os.RemoveAll(dir)

-	if _, err := PlaceUnit(&u, dir); err != nil {
+	dst := UnitDestination(&u, dir)
+	expectDst := path.Join(dir, "run", "systemd", "network", "50-eth0.network")
+	if dst != expectDst {
+		t.Fatalf("UnitDestination returned %s, expected %s", dst, expectDst)
+	}
+
+	if err := PlaceUnit(&u, dst); err != nil {
 		t.Fatalf("PlaceUnit failed: %v", err)
 	}

-	fullPath := path.Join(dir, "run", "systemd", "network", "50-eth0.network")
-	fi, err := os.Stat(fullPath)
+	fi, err := os.Stat(dst)
 	if err != nil {
 		t.Fatalf("Unable to stat file: %v", err)
 	}
@@ -40,27 +44,27 @@ Address=10.209.171.177/19
 		t.Errorf("File has incorrect mode: %v", fi.Mode())
 	}

-	contents, err := ioutil.ReadFile(fullPath)
+	contents, err := ioutil.ReadFile(dst)
 	if err != nil {
 		t.Fatalf("Unable to read expected file: %v", err)
 	}

-	expect := `[Match]
+	expectContents := `[Match]
 Name=eth47

 [Network]
 Address=10.209.171.177/19
 `
-	if string(contents) != expect {
-		t.Fatalf("File has incorrect contents '%s'.\nExpected '%s'", string(contents), expect)
+	if string(contents) != expectContents {
+		t.Fatalf("File has incorrect contents '%s'.\nExpected '%s'", string(contents), expectContents)
 	}
 }

 func TestPlaceMountUnit(t *testing.T) {
 	u := Unit{
-		Name: "media-state.mount",
-      Runtime: false,
-      Content: `[Mount]
+		Name:    "media-state.mount",
+		Runtime: false,
+		Content: `[Mount]
 What=/dev/sdb1
 Where=/media/state
 `,
@@ -70,14 +74,19 @@ Where=/media/state
 	if err != nil {
 		t.Fatalf("Unable to create tempdir: %v", err)
 	}
-	defer syscall.Rmdir(dir)
+	defer os.RemoveAll(dir)

-	if _, err := PlaceUnit(&u, dir); err != nil {
+	dst := UnitDestination(&u, dir)
+	expectDst := path.Join(dir, "etc", "systemd", "system", "media-state.mount")
+	if dst != expectDst {
+		t.Fatalf("UnitDestination returned %s, expected %s", dst, expectDst)
+	}
+
+	if err := PlaceUnit(&u, dst); err != nil {
 		t.Fatalf("PlaceUnit failed: %v", err)
 	}

-	fullPath := path.Join(dir, "etc", "systemd", "system", "media-state.mount")
-	fi, err := os.Stat(fullPath)
+	fi, err := os.Stat(dst)
 	if err != nil {
 		t.Fatalf("Unable to stat file: %v", err)
 	}
@@ -86,17 +95,17 @@ Where=/media/state
 		t.Errorf("File has incorrect mode: %v", fi.Mode())
 	}

-	contents, err := ioutil.ReadFile(fullPath)
+	contents, err := ioutil.ReadFile(dst)
 	if err != nil {
 		t.Fatalf("Unable to read expected file: %v", err)
 	}

-	expect := `[Mount]
+	expectContents := `[Mount]
 What=/dev/sdb1
 Where=/media/state
 `
-	if string(contents) != expect {
-		t.Fatalf("File has incorrect contents '%s'.\nExpected '%s'", string(contents), expect)
+	if string(contents) != expectContents {
+		t.Fatalf("File has incorrect contents '%s'.\nExpected '%s'", string(contents), expectContents)
 	}
 }

@@ -105,7 +114,7 @@ func TestMachineID(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Unable to create tempdir: %v", err)
 	}
-	defer syscall.Rmdir(dir)
+	defer os.RemoveAll(dir)

 	os.Mkdir(path.Join(dir, "etc"), os.FileMode(0755))
 	ioutil.WriteFile(path.Join(dir, "etc", "machine-id"), []byte("node007\n"), os.FileMode(0444))
@@ -114,3 +123,22 @@ func TestMachineID(t *testing.T) {
 		t.Fatalf("File has incorrect contents")
 	}
 }
+func TestMaskUnit(t *testing.T) {
+	dir, err := ioutil.TempDir(os.TempDir(), "coreos-cloudinit-")
+	if err != nil {
+		t.Fatalf("Unable to create tempdir: %v", err)
+	}
+	defer os.RemoveAll(dir)
+	if err := MaskUnit("foo.service", dir); err != nil {
+		t.Fatalf("Unable to mask unit: %v", err)
+	}
+
+	fullPath := path.Join(dir, "etc", "systemd", "system", "foo.service")
+	target, err := os.Readlink(fullPath)
+	if err != nil {
+		t.Fatalf("Unable to read link", err)
+	}
+	if target != "/dev/null" {
+		t.Fatalf("unit not masked, got unit target", target)
+	}
+}
--- a/system/user.go
+++ b/system/user.go
@@ -53,7 +53,7 @@ func CreateUser(u *User) error {
 	}

 	if u.PrimaryGroup != "" {
-		args = append(args, "--primary-group", u.PrimaryGroup)
+		args = append(args, "--gid", u.PrimaryGroup)
 	}

 	if len(u.Groups) > 0 {
--- a/39
+++ b/39
@@ -1,10 +1,37 @@
 #!/bin/bash -e
+#
+# Run all coreos-cloudinit tests
+#   ./test
+#   ./test -v
+#
+# Run tests for one package
+#   PKG=initialize ./test
+#

-echo "Building bin/coreos-cloudinit"
-. build
+# Invoke ./cover for HTML output
+COVER=${COVER:-"-cover"}
+
+source ./build
+
+declare -a TESTPKGS=(initialize system datasource)
+
+if [ -z "$PKG" ]; then
+	GOFMTPATH="$TESTPKGS coreos-cloudinit.go"
+	# prepend repo path to each package
+	TESTPKGS=${TESTPKGS[@]/#/${REPO_PATH}/}
+else
+	GOFMTPATH="$TESTPKGS"
+	# strip out slashes and dots from PKG=./foo/
+	TESTPKGS=${PKG//\//}
+	TESTPKGS=${TESTPKGS//./}
+	TESTPKGS=${TESTPKGS/#/${REPO_PATH}/}
+fi

 echo "Running tests..."
-for pkg in "./initialize ./system"; do
-	go test -i $pkg
-	go test -v $pkg
-done
+go test -i ${TESTPKGS}
+go test ${COVER} $@ ${TESTPKGS}
+
+echo "Checking gofmt..."
+fmtRes=$(gofmt -l $GOFMTPATH)
+
+echo "Success"
--- a/units/user-cloudinit-proc-cmdline.service
+++ b/units/user-cloudinit-proc-cmdline.service
@@ -0,0 +1,12 @@
+[Unit]
+Description=Load cloud-config from url defined in /proc/cmdline
+Requires=coreos-setup-environment.service
+After=coreos-setup-environment.service
+Before=user-config.target
+ConditionKernelCommandLine=cloud-config-url
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+EnvironmentFile=-/etc/environment
+ExecStart=/usr/bin/coreos-cloudinit --from-proc-cmdline
--- a/units/user-cloudinit@media-configdrive-openstack-latest-user_data.service
+++ b/units/user-cloudinit@media-configdrive-openstack-latest-user_data.service
@@ -0,0 +1,24 @@
+[Unit]
+Description=Load cloud-config from %f
+Requires=coreos-setup-environment.service
+After=coreos-setup-environment.service
+Before=user-config.target
+ConditionFileNotEmpty=%f
+
+# HACK: work around ordering between config drive and ec2 metadata It is
+# possible for OpenStack style systems to provide both the metadata service
+# and config drive, to prevent the two from stomping on eachother force
+# this to run after OEM and after metadata (if it exsts). I'm doing this
+# here instead of in the ec2 service because the ec2 unit is not written
+# to disk until the OEM cloud config is evaluated and I want to make sure
+# systemd knows about the ordering as early as possible.
+# coreos-cloudinit could implement a simple lock but that cannot be used
+# until after the systemd dbus calls are made non-blocking.
+After=system-cloudinit@usr-share-oem-cloud\x2dconfig.yml.service
+After=ec2-cloudinit.service
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+EnvironmentFile=-/etc/environment
+ExecStart=/usr/bin/coreos-cloudinit --from-file=%f
--- a/units/user-config.target
+++ b/units/user-config.target
@@ -6,3 +6,6 @@ After=system-config.target
 # Load user_data placed by coreos-install
 Requires=user-cloudinit@var-lib-coreos\x2dinstall-user_data.service
 After=user-cloudinit@var-lib-coreos\x2dinstall-user_data.service
+
+Requires=user-cloudinit-proc-cmdline.service
+After=user-cloudinit-proc-cmdline.service
Author	SHA1	Message	Date
Brian Waldon	a398ce82f7	chore(release): Bump version to v0.6.1	2014-05-14 10:52:22 -07:00
Brian Waldon	e814b37839	Merge pull request #107 from bcwaldon/locksmith-no-etc fix(coreos-cloudinit): Ensure /etc/coreos exists before writing to it	2014-05-14 10:49:23 -07:00
Brian Waldon	cb4d9e81a4	fix(coreos-cloudinit): Ensure /etc/coreos exists before writing to it	2014-05-14 10:47:18 -07:00
Jonathan Boulle	b87a4628e6	Merge pull request #99 from jonboulle/simple chore(cloudinit): remove superfluous check	2014-05-12 10:51:51 -07:00
Jonathan Boulle	b22fdd5ac9	Merge pull request #104 from jonboulle/tests feat(tests): add coverage script	2014-05-12 10:51:38 -07:00
Jonathan Boulle	6939fc2ddc	feat(tests): add cover script	2014-05-10 01:42:57 -07:00
Jonathan Boulle	e3117269cb	chore(cloudinit): remove superfluous check	2014-05-09 20:32:51 -07:00
Brandon Philips	3bb3a683a4	Merge pull request #98 from philips/remove-oem-from-default chore(Documentation): move OEM into its own doc	2014-05-08 09:41:42 -07:00
Brandon Philips	e1033c979e	chore(Documentation): move OEM into its own doc People are customizing the OEM needlessly. Just move it into its own doc.	2014-05-08 09:32:21 -07:00
Jonathan Boulle	9a4d24826f	Merge pull request #80 from jonboulle/master users[i].primary-group option seems invalid	2014-05-07 21:12:45 -07:00
Jonathan Boulle	7bed1307e1	fix(user): user correct primary group flag for useradd	2014-05-07 14:06:51 -07:00
Brandon Philips	47b536532d	chore(coreos-cloudinit): version +git	2014-05-06 21:09:40 -07:00
Brandon Philips	7df5cf761e	chore(coreos-cloudinit): bump to 0.6.0 The major feature in this release is coreos.update.reboot-strategy	2014-05-06 21:05:42 -07:00
Brandon Philips	799c02865c	Merge pull request #96 from philips/locksmith-support Add locksmith support v2	2014-05-06 21:00:44 -07:00
Brandon Philips	9f38792d43	fix(initialize): use REBOOT_STRATEGY in update.conf Change from STRATEGY to REBOOT_STRATEGY and update the function names to reflect that this is a config now.	2014-05-06 20:57:29 -07:00
Alex Polvi	7e4fa423e4	feat(initialize): add locksmith configuration configure locksmith strategy based on the cloud config.	2014-05-06 20:57:28 -07:00
Brandon Philips	c3f17bd07b	feat(system): add MaskUnit to systemd	2014-05-06 17:46:16 -07:00
Brandon Philips	85a473d972	Merge pull request #95 from philips/various-code-cleanups chore(initialize): code cleanups and gofmt	2014-05-06 16:19:35 -07:00
Brandon Philips	aea5ca5252	chore(initialize): code cleanups and gofmt	2014-05-06 16:13:21 -07:00
Michael Marineau	4e84180ad5	chore(release): Bump version to v0.5.2+git	2014-05-05 14:09:08 -07:00
Michael Marineau	0f1717bf26	chore(release): Bump version to v0.5.2	2014-05-05 14:07:50 -07:00
Michael Marineau	6a9aa60a8d	Merge pull request #93 from marineam/reload Revert "fix(units): Drop automatic daemon-reload"	2014-05-05 14:02:16 -07:00
Michael Marineau	7cacb2e127	Revert "fix(units): Drop automatic daemon-reload" daemon-reload should be fixed now and the latest CoreOS with locksmith is causing the etcd unit to get lazy-loaded before all the cloudinit processes have finished configuring etcd via dropin files. In short, the luck we were relying on to get by without daemon-reload has officially run out. Cross your fingers! This reverts commit `580460ff3f`.	2014-05-05 13:16:07 -07:00
Brian Waldon	1f688dcdca	Merge pull request #92 from bcwaldon/crlf-test test(crlf): Add test that parses user-data with carriage returns	2014-05-05 10:50:25 -07:00
Brian Waldon	f6d8190e8f	test(crlf): Add test that parses user-data with carriage returns	2014-05-05 10:49:02 -07:00
Brandon Philips	3263816cf5	Merge https://github.com/coreos/template-project	2014-05-05 09:44:59 -07:00
Michael Marineau	96e1cb5a7a	Merge pull request #89 from robszumski/doc-write-files feat(docs): include write_files example	2014-04-29 11:26:44 -07:00
Rob Szumski	cf556d2a81	feat(docs): include write_files example	2014-04-29 11:17:22 -07:00
Jonathan Boulle	62bda8e6cc	Merge pull request #88 from robszumski/master fix(docs): start the example unit	2014-04-29 12:15:44 -06:00
Rob Szumski	0d1d1f77be	fix(docs): start the example unit	2014-04-28 10:57:11 -07:00
Michael Marineau	a7e21747fa	Merge pull request #87 from marineam/hack fix(configdrive): Always run after OEM and ec2 metadata.	2014-04-23 14:54:19 -07:00
Michael Marineau	26b54534d6	fix(configdrive): Always run after OEM and ec2 metadata. A workaround for https://github.com/coreos/coreos-cloudinit/issues/86 Longer term cloudinit needs to be fixed to not corrupt the system when multiple config sources are being used. We've pretty much gotten this far without this coming up because most configs don't conflict so badly.	2014-04-23 14:38:54 -07:00
Brian Waldon	8201d75115	chore(release): Bump version to v0.5.1+git	2014-04-22 18:22:35 -07:00
Brian Waldon	1d024af4c1	chore(release): Bump version to v0.5.1	2014-04-22 18:22:24 -07:00
Brian Waldon	09c690cbe7	Merge pull request #85 from bcwaldon/pxe-unit feat(proc-cmdline): Add proc-cmdline unit	2014-04-22 18:21:51 -07:00
Brian Waldon	49adf19081	feat(proc-cmdline): Add proc-cmdline unit This unit will always be started, but will only do anything if a `cloud-config-url=<url>` token is provided in /proc/cmdline.	2014-04-22 17:56:52 -07:00
Brian Waldon	46b046c82e	chore(release): Bump version to v0.5.0+git	2014-04-22 16:48:32 -07:00
Brian Waldon	e64b61b312	chore(release): Bump version to v0.5.0	2014-04-22 16:48:21 -07:00
Brian Waldon	d72e10125a	Merge pull request #84 from bcwaldon/proc-cmdline feat(proc-cmdline): Parse /proc/cmdline for cloud-config-url	2014-04-22 16:43:05 -07:00
Brian Waldon	3de3d2c050	feat(proc-cmdline): Parse /proc/cmdline for cloud-config-url If the --from-proc-cmdline flag is given to coreos-cloudinit, the local /proc/cmdline file will be parsed for a cloud-config-url	2014-04-22 16:38:01 -07:00
Brian Waldon	2ff0762b0c	Merge pull request #83 from robszumski/correct-headers docs(cloud-config): correct headers	2014-04-21 19:15:50 -07:00
Rob Szumski	d6bacb24bc	docs(cloud-config): correct headers	2014-04-21 17:56:35 -07:00
Brian Waldon	926eb4dbb7	Merge pull request #77 from chexxor/master Update cloud-config.md to include expected file format	2014-04-21 14:27:22 -07:00
Brian Waldon	e7599fea58	Merge pull request #82 from bcwaldon/fix-68 fix(userdata): Strip \r when checking header	2014-04-21 14:26:31 -07:00
Brian Waldon	e98c58c656	fix(userdata): Strip \r when checking header Fix #68	2014-04-21 13:40:26 -07:00
Alex Berg	ae350a3b34	Update cloud-config.md - use "you"	2014-04-18 11:45:02 -05:00
Alex Berg	c3b53f24cf	Update cloud-config.md to use "parameter", not "option"	2014-04-18 11:45:01 -05:00
Alex Berg	8bee85e63d	Update cloud-config.md based on feedback	2014-04-18 11:43:54 -05:00
Alex Berg	4c02e99bc8	Update cloud-config.md option descriptions Re-word a few more things to look more like docs.	2014-04-18 11:43:53 -05:00
Alex Berg	0fb5291dd0	Update cloud-config.md to include expected file format Clarify root-level keys. Use page structure to indicate expected values.	2014-04-18 11:43:53 -05:00
Brian Waldon	7f55876378	Merge pull request #79 from robszumski/note-config-drive feat(docs): note config-drive	2014-04-17 09:36:57 -07:00
Brian Waldon	eb51a89f78	Merge pull request #72 from bcwaldon/unit-enable Address unit enabling issues	2014-04-17 09:32:47 -07:00
Rob Szumski	588ff4c26c	feat(docs): note config-drive	2014-04-16 22:35:39 -07:00
Michael Marineau	5472de8821	Merge pull request #78 from robszumski/update-user-group fix(docs): use better group example	2014-04-16 16:49:50 -07:00
Rob Szumski	e6b632f817	fix(docs): use better group example	2014-04-16 16:48:04 -07:00
Brian Waldon	61bb63b6e6	feat(unit): Allow units to be enabled even if contents not provided	2014-04-15 09:00:53 -07:00
Brian Waldon	476761cf62	refactor(unit): Separate UnitDestination from PlaceUnit	2014-04-15 09:00:53 -07:00
Brian Waldon	5981e12ac0	feat(unit): Allow user to control enabling units Fix #69 - A user may provide an `enable` attribute of a unit in their cloud config document. If true, coreos-cloudinit will instruct systemd to enable the associated unit. If false, the unit will not be enabled. Fix #71 - The default enable behavior has been changed from on to off.	2014-04-15 09:00:52 -07:00
Jonathan Boulle	e01a1f70c3	Merge pull request #2 from jonboulle/master Clean up CONTRIBUTING.md and other bits of template-project	2014-04-04 10:41:40 -07:00
Jonathan Boulle	2e4ea503b0	chore(contributing): clean up CONTRIBUTING.md and split out DCO	2014-04-04 10:40:37 -07:00
Brandon Philips	c7aef5fdf2	Merge pull request #1 from bcwaldon/fix-case fix(CONTRIBUTING.md): Fix title case	2014-02-05 15:52:24 -08:00
Brian Waldon	c4605160c5	fix(CONTRIBUTING.md): Fix title case	2014-02-05 15:51:24 -08:00
Brandon Philips	054de85da2	feat(*): initial commit	2014-01-19 12:25:11 -08:00