chore(coreos-cloudinit): bump to 0.6.0

The major feature in this release is coreos.update.reboot-strategy
Merge pull request #96 from philips/locksmith-support
2014-05-06 21:05:42 -07:00 · 2014-05-06 21:00:44 -07:00 · 2014-05-06 20:57:29 -07:00 · 2014-05-06 20:57:28 -07:00 · 2014-05-06 17:46:16 -07:00 · 2014-05-06 16:19:35 -07:00
40 changed files with 1414 additions and 222 deletions
--- 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.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...

 ```
@@ -19,7 +48,9 @@ We can use the templating feature of coreos-cloudinit to automate etcd configura
 coreos:
    etcd:
        name: node001
-        discovery: https://discovery.etcd.io/3445fa65423d8b04df07f59fb40218f8
+	# 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
 ```
@@ -29,20 +60,36 @@ coreos:
 ```
 [Service]
 Environment="ETCD_NAME=node001"
-Environment="ETCD_DISCOVERY=https://discovery.etcd.io/3445fa65423d8b04df07f59fb40218f8"
+Environment="ETCD_DISCOVERY=https://discovery.etcd.io/<token>"
 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.
+
+- **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:
+  update:
+    reboot-strategy: etcd-lock
+```
+
+#### oem
+
+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:

 - **id**: Lowercase string identifying the OEM
 - **name**: Human-friendly string representing the OEM
@@ -69,22 +116,22 @@ coreos:
 ...would be rendered to the following `/etc/oem-release`:

 ```
-ID="rackspace"
+ID=rackspace
 NAME="Rackspace Cloud Servers"
-VERSION_ID="168.0.0"
+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
+#### 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.

@@ -100,6 +147,7 @@ Write a unit to disk, automatically starting it.
 coreos:
    units:
      - name: docker-redis.service
+        command: start
        content: |
          [Unit]
          Description=Redis container
@@ -128,14 +176,12 @@ 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
@@ -146,7 +192,7 @@ 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`).

 ```
@@ -157,8 +203,7 @@ 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
@@ -171,6 +216,7 @@ All but the `passwd` and `ssh-authorized-keys` fields will be ignored if the use
 - **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-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.

@@ -187,12 +233,12 @@ The following fields are not yet implemented:

 users:
  - name: elroy
-  passwd: $6$5s2u6/jR$un0AvWnqilcgaNB3Mkxd5yYv6mTlWfOoCYHZmfi3LDKVltj.E8XNKEcwWm...
-  groups:
-    - staff
-    - docker
-  ssh-authorized-keys:
-    - ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC0g+ZTxC7weoIJLUafOgrm+h...
+    passwd: $6$5s2u6/jR$un0AvWnqilcgaNB3Mkxd5yYv6mTlWfOoCYHZmfi3LDKVltj.E8XNKEcwWm...
+    groups:
+      - sudo
+      - docker
+    ssh-authorized-keys:
+      - ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC0g+ZTxC7weoIJLUafOgrm+h...
 ```

 #### Generating a password hash
@@ -215,12 +261,74 @@ 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
+
+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
+
+users:
+  - name: elroy
+    coreos-ssh-import-github: elroy
+```
+
+##### From an HTTP Endpoint
+
+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
+
+users:
+  - name: elroy
+    coreos-ssh-import-url: https://token:<OAUTH-TOKEN>@github-enterprise.example.com/users/elroy/keys
+```
+
+You can also specify any URL whose response matches the JSON format for public keys:
+
+```
+#cloud-config
+
+users:
+  - name: elroy
+    coreos-ssh-import-url: https://example.com/public-keys
+```
+
 ### 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`
 - **permissions**: String representing file permissions 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>`.
+
+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
+
+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.
+
+```
+#cloud-config
+
+manage_etc_hosts: localhost
+```
--- a/Documentation/config-drive.md
+++ b/Documentation/config-drive.md
@@ -0,0 +1,30 @@
+# Distribution via Config Drive
+
+CoreOS supports providing configuration data via [config drive][config-drive]
+disk images. Currently only providing a single script or cloud config file is
+supported.
+
+[config-drive]: http://docs.openstack.org/user-guide/content/enable_config_drive.html#config_drive_contents
+
+## Contents and Format
+
+The image should be a single FAT or ISO9660 file system with the label
+`config-2` and the configuration data should be located at
+`openstack/latest/user_data`.
+
+For example, to wrap up a config named `user_data` in a config drive image:
+
+    mkdir -p /tmp/new-drive/openstack/latest
+    cp user_data /tmp/new-drive/openstack/latest/user_data
+    mkisofs -R -V config-2 -o configdrive.iso /tmp/new-drive
+    rm -r /tmp/new-drive
+
+## QEMU virtfs
+
+One exception to the above, when using QEMU it is possible to skip creating an
+image and use a plain directory containing the same contents:
+
+    qemu-system-x86_64 \
+        -fsdev local,id=conf,security_model=none,readonly,path=/tmp/new-drive \
+        -device virtio-9p-pci,fsdev=conf,mount_tag=config-2 \
+        [usual qemu options here...]
--- a/202
+++ b/202
@@ -0,0 +1,202 @@
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+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      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/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 = "0.3.2"
+const version = "0.6.0"

 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")

@@ -40,8 +42,8 @@ func main() {
 		os.Exit(0)
 	}

-	if file != "" && url != "" {
-		fmt.Println("Provide one of --from-file or --from-url")
+	if file != "" && url != "" && !useProcCmdline {
+		fmt.Println("Provide one of --from-file, --from-url or --from-proc-cmdline")
 		os.Exit(1)
 	}

@@ -50,8 +52,10 @@ func main() {
 		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 +80,7 @@ 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 +112,3 @@ 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/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
@@ -13,13 +13,15 @@ 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
-	Users      []system.User
+	WriteFiles     []system.File `yaml:"write_files"`
+	Hostname       string
+	Users          []system.User
+	ManageEtcHosts string `yaml:"manage_etc_hosts"`
 }

 func NewCloudConfig(contents string) (*CloudConfig, error) {
@@ -91,6 +93,12 @@ func Apply(cfg CloudConfig, env *Environment) error {
 					return err
 				}
 			}
+			if user.SSHImportURL != "" {
+				log.Printf("Authorizing SSH keys for CoreOS user '%s' from '%s'", user.Name, user.SSHImportURL)
+				if err := SSHImportKeysFromURL(user.Name, user.SSHImportURL); err != nil {
+					return err
+				}
+			}
 		}
 	}

@@ -121,18 +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 {
@@ -148,11 +164,15 @@ func Apply(cfg CloudConfig, env *Environment) error {
 				commands["systemd-networkd.service"] = "restart"
 			} else {
 				if unit.Command != "" {
-				    commands[unit.Name] = unit.Command
+					commands[unit.Name] = unit.Command
 				}
 			}
 		}

+		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)
@@ -163,5 +183,15 @@ func Apply(cfg CloudConfig, env *Environment) error {
 		}
 	}

+	if cfg.ManageEtcHosts != "" {
+
+		if err := WriteEtcHosts(cfg.ManageEtcHosts, env.Root()); err != nil {
+			log.Fatalf("Failed to write /etc/hosts to filesystem: %v", err)
+		}
+
+		log.Printf("Wrote /etc/hosts file to filesystem")
+
+	}
+
 	return nil
 }
--- 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/github.go
+++ b/initialize/github.go
@@ -1,52 +1,18 @@
 package initialize

 import (
-	"encoding/json"
 	"fmt"
-	"io/ioutil"
-	"net/http"

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

-type GithubUserKey struct {
-	Id  int    `json:"id"`
-	Key string `json:"key"`
-}
-
-func fetchGithubKeys(github_url string) ([]string, error) {
-	res, err := http.Get(github_url)
-	defer res.Body.Close()
-	if err != nil {
-		return nil, err
-	}
-	body, err := ioutil.ReadAll(res.Body)
-	if err != nil {
-		return nil, err
-	}
-	var data []GithubUserKey
-	err = json.Unmarshal(body, &data)
-	if err != nil {
-		return nil, err
-	}
-	keys := make([]string, 0)
-	for _, key := range data {
-		keys = append(keys, key.Key)
-	}
-	return keys, err
-
-}
-
 func SSHImportGithubUser(system_user string, github_user string) error {
 	url := fmt.Sprintf("https://api.github.com/users/%s/keys", github_user)
-	keys, err := fetchGithubKeys(url)
+	keys, err := fetchUserKeys(url)
 	if err != nil {
 		return err
 	}
+
 	key_name := fmt.Sprintf("github-%s", github_user)
-	err = system.AuthorizeSSHKeys(system_user, key_name, keys)
-	if err != nil {
-		return err
-	}
-	return nil
+	return system.AuthorizeSSHKeys(system_user, key_name, keys)
 }
--- a/initialize/github_test.go
+++ b/initialize/github_test.go
@@ -1,48 +1,9 @@
 package initialize

 import (
-	"fmt"
-	"net/http"
-	"net/http/httptest"
 	"testing"
 )

-func TestCloudConfigUsersGithubMarshal(t *testing.T) {
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		gh_res := `
-[
-  {
-    "id": 67057,
-    "key": "ssh-dss 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"
-  },
-  {
-    "id": 3340477,
-    "key": "ssh-dss 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"
-  },
-  {
-    "id": 5224438,
-    "key": "ssh-dss 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"
-  }
-]
-`
-		fmt.Fprintln(w, gh_res)
-	}))
-	defer ts.Close()
-
-	keys, err := fetchGithubKeys(ts.URL)
-	if err != nil {
-		t.Fatalf("Encountered unexpected error: %v", err)
-	}
-	expected := "ssh-dss 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"
-	if keys[0] != expected {
-		t.Fatalf("expected %s, got %s", expected, keys[0])
-	}
-	expected = "ssh-dss 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"
-	if keys[2] != expected {
-		t.Fatalf("expected %s, got %s", expected, keys[2])
-	}
-
-}
 func TestCloudConfigUsersGithubUser(t *testing.T) {

 	contents := `
--- a/initialize/locksmith.go
+++ b/initialize/locksmith.go
@@ -0,0 +1,82 @@
+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")
+
+	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 +1,92 @@
+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, "etc", "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/manage_etc_hosts.go
+++ b/initialize/manage_etc_hosts.go
@@ -0,0 +1,44 @@
+package initialize
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"path"
+
+	"github.com/coreos/coreos-cloudinit/system"
+)
+
+const DefaultIpv4Address = "127.0.0.1"
+
+func generateEtcHosts(option string) (out string, err error) {
+	if option != "localhost" {
+		return "", errors.New("Invalid option to manage_etc_hosts")
+	}
+
+	// use the operating system hostname
+	hostname, err := os.Hostname()
+	if err != nil {
+		return "", err
+	}
+
+	return fmt.Sprintf("%s %s\n", DefaultIpv4Address, hostname), nil
+
+}
+
+// Write an /etc/hosts file
+func WriteEtcHosts(option string, root string) error {
+
+	etcHosts, err := generateEtcHosts(option)
+	if err != nil {
+		return err
+	}
+
+	file := system.File{
+		Path:               path.Join(root, "etc", "hosts"),
+		RawFilePermissions: "0644",
+		Content:            etcHosts,
+	}
+
+	return system.WriteFile(&file)
+}
--- a/initialize/manage_etc_hosts_test.go
+++ b/initialize/manage_etc_hosts_test.go
@@ -0,0 +1,76 @@
+package initialize
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path"
+	"testing"
+)
+
+func TestCloudConfigManageEtcHosts(t *testing.T) {
+	contents := `
+manage_etc_hosts: localhost
+`
+	cfg, err := NewCloudConfig(contents)
+	if err != nil {
+		t.Fatalf("Encountered unexpected error: %v", err)
+	}
+
+	manageEtcHosts := cfg.ManageEtcHosts
+
+	if manageEtcHosts != "localhost" {
+		t.Errorf("ManageEtcHosts value is %q, expected 'localhost'", manageEtcHosts)
+	}
+}
+
+func TestManageEtcHostsInvalidValue(t *testing.T) {
+	dir, err := ioutil.TempDir(os.TempDir(), "coreos-cloudinit-")
+	if err != nil {
+		t.Fatalf("Unable to create tempdir: %v", err)
+	}
+	defer rmdir(dir)
+
+	if err := WriteEtcHosts("invalid", dir); err == nil {
+		t.Fatalf("WriteEtcHosts succeeded with invalid value: %v", err)
+	}
+}
+
+func TestEtcHostsWrittenToDisk(t *testing.T) {
+	dir, err := ioutil.TempDir(os.TempDir(), "coreos-cloudinit-")
+	if err != nil {
+		t.Fatalf("Unable to create tempdir: %v", err)
+	}
+	defer rmdir(dir)
+
+	if err := WriteEtcHosts("localhost", dir); err != nil {
+		t.Fatalf("WriteEtcHosts failed: %v", err)
+	}
+
+	fullPath := path.Join(dir, "etc", "hosts")
+
+	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)
+	}
+
+	hostname, err := os.Hostname()
+	if err != nil {
+		t.Fatalf("Unable to read OS hostname: %v", err)
+	}
+
+	expect := fmt.Sprintf("%s %s\n", DefaultIpv4Address, hostname)
+
+	if string(contents) != expect {
+		t.Fatalf("File has incorrect contents")
+	}
+}
--- a/initialize/oem.go
+++ b/initialize/oem.go
@@ -18,9 +18,9 @@ type OEMRelease struct {

 func (oem *OEMRelease) String() string {
 	fields := []string{
-		fmt.Sprintf("ID=%q", oem.ID),
+		fmt.Sprintf("ID=%s", oem.ID),
+		fmt.Sprintf("VERSION_ID=%s", oem.VersionID),
 		fmt.Sprintf("NAME=%q", oem.Name),
-		fmt.Sprintf("VERSION_ID=%q", oem.VersionID),
 		fmt.Sprintf("HOME_URL=%q", oem.HomeURL),
 		fmt.Sprintf("BUG_REPORT_URL=%q", oem.BugReportURL),
 	}
--- 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)
@@ -42,9 +41,9 @@ func TestOEMReleaseWrittenToDisk(t *testing.T) {
 		t.Fatalf("Unable to read expected file: %v", err)
 	}

-	expect := `ID="rackspace"
+	expect := `ID=rackspace
+VERSION_ID=168.0.0
 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"
 `
--- a/initialize/ssh_keys.go
+++ b/initialize/ssh_keys.go
@@ -0,0 +1,47 @@
+package initialize
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+
+	"github.com/coreos/coreos-cloudinit/system"
+)
+
+type UserKey struct {
+	ID  int    `json:"id,omitempty"`
+	Key string `json:"key"`
+}
+
+func SSHImportKeysFromURL(system_user string, url string) error {
+	keys, err := fetchUserKeys(url)
+	if err != nil {
+		return err
+	}
+
+	key_name := fmt.Sprintf("coreos-cloudinit-%s", system_user)
+	return system.AuthorizeSSHKeys(system_user, key_name, keys)
+}
+
+func fetchUserKeys(url string) ([]string, error) {
+	res, err := http.Get(url)
+	defer res.Body.Close()
+	if err != nil {
+		return nil, err
+	}
+	body, err := ioutil.ReadAll(res.Body)
+	if err != nil {
+		return nil, err
+	}
+	var data []UserKey
+	err = json.Unmarshal(body, &data)
+	if err != nil {
+		return nil, err
+	}
+	keys := make([]string, 0)
+	for _, key := range data {
+		keys = append(keys, key.Key)
+	}
+	return keys, err
+}
--- a/initialize/ssh_keys_test.go
+++ b/initialize/ssh_keys_test.go
@@ -0,0 +1,69 @@
+package initialize
+
+import (
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+)
+
+func TestCloudConfigUsersUrlMarshal(t *testing.T) {
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		gh_res := `
+[
+  {
+    "key": "ssh-dss AAAAB3NzaC1kc3MAAACBAIHAu822ggSkIHrJYvhmBceOSVjuflfQm8RbMMDNVe9relQfuPbN+nxGGTCKzPLebeOcX+Wwi77TPXWwK3BZMglfXxhABlFPsuMb63Tqp94pBYsJdx/iFj9iGo6pKoM1k8ubOcqsUnq+BR9895zRbE7MjdwkGo67+QhCEwvkwAnNAAAAFQCuddVqXLCubzqnWmeHLQE+2GFfHwAAAIBnlXW5h15ndVuwi0htF4oodVSB1KwnTWcuBK+aE1zRs76yvRb0Ws+oifumThDwB/Tec6FQuAfRKfy6piChZqsu5KvL98I+2t5yyi1td+kMvdTnVL2lW44etDKseOcozmknCOmh4Dqvhl/2MwrDAhlPaN08EEq9h3w3mXtNLWH64QAAAIBAzDOKr17llngaKIdDXh+LtXKh87+zfjlTA36/9r2uF2kYE5uApDtu9sPCkt7+YBQt7R8prADPckwAiXwVdk0xijIOpLDBmoydQJJRQ+zTMxvpQmUr/1kUOv0zb+lB657CgvN0vVTmP2swPeMvgntt3C4vw7Ab+O+MS9peOAJbbQ=="
+  },
+  {
+    "key": "ssh-dss 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"
+  },
+  {
+    "id": 5224438,
+    "key": "ssh-dss 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"
+  }
+]
+`
+		fmt.Fprintln(w, gh_res)
+	}))
+	defer ts.Close()
+
+	keys, err := fetchUserKeys(ts.URL)
+	if err != nil {
+		t.Fatalf("Encountered unexpected error: %v", err)
+	}
+	expected := "ssh-dss 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"
+	if keys[0] != expected {
+		t.Fatalf("expected %s, got %s", expected, keys[0])
+	}
+	expected = "ssh-dss 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"
+	if keys[2] != expected {
+		t.Fatalf("expected %s, got %s", expected, keys[2])
+	}
+
+}
+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", 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)
+	}
+}
--- 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
@@ -13,6 +13,7 @@ type User struct {
 	PasswordHash        string   `yaml:"passwd"`
 	SSHAuthorizedKeys   []string `yaml:"ssh-authorized-keys"`
 	SSHImportGithubUser string   `yaml:"coreos-ssh-import-github"`
+	SSHImportURL        string   `yaml:"coreos-ssh-import-url"`
 	GECOS               string   `yaml:"gecos"`
 	Homedir             string   `yaml:"homedir"`
 	NoCreateHome        bool     `yaml:"no-create-home"`
@@ -33,6 +34,8 @@ func CreateUser(u *User) error {

 	if u.PasswordHash != "" {
 		args = append(args, "--password", u.PasswordHash)
+	} else {
+		args = append(args, "--password", "*")
 	}

 	if u.GECOS != "" {
--- a/2
+++ b/2
@@ -4,7 +4,7 @@ echo "Building bin/coreos-cloudinit"
 . build

 echo "Running tests..."
-for pkg in "./initialize ./system"; do
+for pkg in "./initialize ./system ./datasource"; do
 	go test -i $pkg
 	go test -v $pkg
 done
--- a/units/90-configdrive.rules
+++ b/units/90-configdrive.rules
@@ -0,0 +1,11 @@
+# Automatically trigger configdrive mounting.
+
+ACTION!="add|change", GOTO="coreos_configdrive_end"
+
+# A normal config drive. Block device formatted with iso9660 or fat
+SUBSYSTEM=="block", ENV{ID_FS_TYPE}=="iso9660|vfat", ENV{ID_FS_LABEL}=="config-2", TAG+="systemd", ENV{SYSTEMD_WANTS}+="configdrive-block.service"
+
+# Addtionally support virtfs from QEMU
+SUBSYSTEM=="virtio", DRIVER=="9pnet_virtio", ATTR{mount_tag}=="config-2", TAG+="systemd", ENV{SYSTEMD_WANTS}+="configdrive-virtfs.service"
+
+LABEL="coreos_configdrive_end"
--- a/units/configdrive-block.service
+++ b/units/configdrive-block.service
@@ -0,0 +1,15 @@
+[Unit]
+Description=Mount config drive
+Conflicts=configdrive-virtfs.service umount.target
+ConditionPathIsMountPoint=!/media/configdrive
+# Only mount config drive block devices automatically in virtual machines
+ConditionVirtualization=vm
+
+# OpenStack defined config drive so they get to stick their name in it
+Wants=user-cloudinit@media-configdrive-openstack-latest-user_data.service
+Before=user-cloudinit@media-configdrive-openstack-latest-user_data.service
+
+[Service]
+Type=oneshot
+RemainAfterExit=no
+ExecStart=/bin/mount -t auto -o ro,x-mount.mkdir LABEL=config-2 /media/configdrive
--- a/units/configdrive-virtfs.service
+++ b/units/configdrive-virtfs.service
@@ -0,0 +1,18 @@
+[Unit]
+Description=Mount config drive from virtfs
+Conflicts=configdrive-block.service umount.target
+ConditionPathIsMountPoint=!/media/configdrive
+ConditionVirtualization=vm
+
+# OpenStack defined config drive so they get to stick their name in it
+Wants=user-cloudinit@media-configdrive-openstack-latest-user_data.service
+Before=user-cloudinit@media-configdrive-openstack-latest-user_data.service
+
+# Support old style setup for now
+Wants=addon-run@media-configdrive.service addon-config@media-configdrive.service
+Before=addon-run@media-configdrive.service addon-config@media-configdrive.service
+
+[Service]
+Type=oneshot
+RemainAfterExit=no
+ExecStart=/bin/mount -t 9p -o trans=virtio,version=9p2000.L,x-mount.mkdir config-2 /media/configdrive
--- a/units/system-cloudinit@.service
+++ b/units/system-cloudinit@.service
@@ -0,0 +1,11 @@
+[Unit]
+Description=Load cloud-config from %f
+Requires=dbus.service
+After=dbus.service
+Before=system-config.target
+ConditionFileNotEmpty=%f
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+ExecStart=/usr/bin/coreos-cloudinit --from-file=%f
--- a/units/system-config.target
+++ b/units/system-config.target
@@ -0,0 +1,10 @@
+[Unit]
+Description=Load system-provided cloud configs
+
+# Generate /etc/environment
+Requires=coreos-setup-environment.service
+After=coreos-setup-environment.service
+
+# Load OEM cloud-config.yml
+Requires=system-cloudinit@usr-share-oem-cloud\x2dconfig.yml.service
+After=system-cloudinit@usr-share-oem-cloud\x2dconfig.yml.service
--- 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@.service
+++ b/units/user-cloudinit@.service
@@ -0,0 +1,12 @@
+[Unit]
+Description=Load cloud-config from %f
+Requires=coreos-setup-environment.service
+After=coreos-setup-environment.service
+Before=user-config.target
+ConditionFileNotEmpty=%f
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+EnvironmentFile=-/etc/environment
+ExecStart=/usr/bin/coreos-cloudinit --from-file=%f
--- 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
@@ -0,0 +1,11 @@
+[Unit]
+Description=Load user-provided cloud configs
+Requires=system-config.target
+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
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
Michael Marineau	13a3d892ca	Merge pull request #76 from marineam/units2 fix(units): Relax ordering requirements for now.	2014-04-15 15:19:13 -07:00
Brian Waldon	2e237ebead	Merge pull request #66 from bcwaldon/doc-encoding doc(write_files): Explicitly document lack of encoding support	2014-04-15 10:06:14 -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
Michael Marineau	78d8be8427	fix(units): Relax ordering requirements for now. The current cloudinit implementation blocks when starting units which causes it to deadlock the boot process if a system cloud config starts a user cloud config because the user configs want to run after system is done. Until cloudinit switches to non-blocking calls user configs will go back to just depending on coreos-setup-environment.service.	2014-04-14 21:39:40 -04:00
Michael Marineau	10d73930d9	Merge pull request #62 from marineam/units add(units): Generic config drive and other systemd units.	2014-04-11 13:26:59 -07:00
Brandon Philips	ea12c0bfd1	Merge pull request #67 from robszumski/remove_disco fix(docs): remove real discovery token	2014-04-09 21:56:26 -07:00
Rob Szumski	6540d12d25	fix(docs): remove real discovery token	2014-04-09 21:55:19 -07:00
Michael Marineau	c438a42587	feat(units): Generic config drive and other systemd units.	2014-04-09 19:10:07 -07:00
Brian Waldon	19f8fe49af	doc(write_files): Explicitly document lack of encoding support	2014-04-08 08:34:39 -07:00
Michael Marineau	58b091061e	Merge pull request #57 from marineam/passwd fix(user): Use '*' as default password field rather than '!'	2014-04-07 14:13:25 -07:00
Brian Waldon	8a7df360ac	Merge pull request #65 from bcwaldon/hosts-newline fix(manage_etc_hosts): Append newline to /etc/hosts	2014-04-07 11:09:27 -07:00
Brian Waldon	ba7cf90315	fix(manage_etc_hosts): Append newline to /etc/hosts	2014-04-07 11:01:17 -07:00
Brian Waldon	8841740a2b	doc(oem): remove quotes from oem doc	2014-04-07 10:58:13 -07:00
Brian Waldon	dfe1255ac3	chore(release): Bump version to v0.4.0+git	2014-04-07 10:23:58 -07:00
Brian Waldon	0fddd1735d	chore(release): Bump version to v0.4.0	2014-04-07 10:23:28 -07:00
Brandon Philips	f779a3f7f5	Merge pull request #64 from philips/no-quotes-on-oem-id-or-version fix(initialize): don't quote version or ID	2014-04-07 10:17:29 -07:00
Brandon Philips	7015338aef	fix(initialize): don't quote version or ID The update_engine parsing and XML generation code is very naive. Instead of trying to implement a correct parser and generater in C++ just generate a file that doesn't have quote's around fields that we know won't have spaces.	2014-04-07 09:56:57 -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
Brian Waldon	34aa147ebe	Merge pull request #58 from gabrtv/manage_etc_hosts feat(etc-hosts) add support for manage_etc_hosts: localhost	2014-04-02 23:11:03 -07:00
Gabriel Monroy	4d02e1da8e	feat(etc-hosts) add support for manage_etc_hosts: localhost This feature is based on https://github.com/number5/cloud-init/blob/master/doc/examples/cloud-config.txt#L447:L482	2014-04-01 16:02:12 -06:00
Michael Marineau	5ef3e1f32b	fix(user): Use '' as default password field rather than '!' When using openssh without pam it checks for a ! prefix in the password field, locking the account entirely if found. The other common lock character, , is allowed by ssh to login via ssh keys so use it instead.	2014-03-31 22:20:02 -07:00
polvi	23d02363ee	Merge pull request #56 from cbmd/patch-1 Fixed indentation for users creation example	2014-03-28 08:40:34 -07:00
Vadym Okun	3c4fe9e260	Fixed indentation for users creation example	2014-03-28 13:23:58 +02:00
Brian Waldon	a594e053f5	chore(doc): clean up formatting	2014-03-27 20:19:42 -07:00
Brian Waldon	f3ba47ac89	Merge pull request #48 from calavera/key_import_url feat(ssh-import): Add ssh-import-url user attribute.	2014-03-27 20:16:10 -07:00
David Calavera	7d814396b7	feat(ssh-import): Add ssh-import-url user attribute.	2014-03-28 09:39:47 +08:00
Brian Waldon	47ca113385	chore(release): Bump version to v0.3.2+git	2014-03-27 18:14:24 -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