https://github.com/ncarlier/cloudconfd
A very simple cloud-config http server.
https://github.com/ncarlier/cloudconfd
Last synced: 7 months ago
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A very simple cloud-config http server.
- Host: GitHub
- URL: https://github.com/ncarlier/cloudconfd
- Owner: ncarlier
- License: mit
- Created: 2014-09-06T11:43:59.000Z (about 11 years ago)
- Default Branch: master
- Last Pushed: 2014-09-09T15:59:55.000Z (about 11 years ago)
- Last Synced: 2024-10-29T07:04:26.107Z (11 months ago)
- Language: Go
- Size: 133 KB
- Stars: 2
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
cloudconfd
==========
A very simple cloud-config http server.
This can help when your cloud provider don't provide an easy way to setup user-data.
Installation
------------
Linux binaries for release [0.0.1](https://github.com/ncarlier/cloudconfd/releases)
* [amd64](https://github.com/ncarlier/cloudconfd/releases/download/v0.0.1/cloudconfd-linux-amd64-v0.0.1.tar.gz)
Download the version you need, untar, and install to your PATH.
$ wget https://github.com/ncarlier/cloudconfd/releases/download/v0.0.1/cloudconfd-linux-amd64-v0.0.1.tar.gz
$ tar xvzf cloudconfd-linux-amd64-v0.0.1.tar.gz
$ ./cloudconfd
Create your own user-data template in the "templates" directory. The filename define the configuration name.
**Example:** "./templates/cloud-config.yaml" will define the "cloud-config" configuration.
Check this project directory for a sample.
Create a configuration file in a directory named according the configuration name in the 'conf' directory. This file is a YAML file and must be named according the mac address of the node you want to configure. You have to replace ":" char by "_" char (for a better file system compatibility).
**Example:** ./conf/cloud-config/da_0f_f7_b2_a1_b3.yaml
Again, check this project directory for a sample.
And launch the server:
cloudconfd -l :9090
Now you can fetch the wanted configuration like this:
curl localhost:9090/cloud-config/da:0f:f7:b2:a1:b3
This will fetch the configuration named "cloud-config" for the MAC address da:0f:f7:b2:a1:b3.
Use case
--------
A simple use case of cloudconfd is to boot a CoreOS node with a minimalist configdrive configured to link cloud-init with cloudconfd server.
First, create a minimalist user-data setup:
#!/bin/bash
MAC=`ifconfig ens18 | grep -o -E '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}'`
URL="http://192.168.0.2:9090/cloud-init/${MAC}"
coreos-cloudinit --from-url="${URL}"
Adapt the URL to your cloudconfd server location.
Then create an ISO file:
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
Mount the iso alongside your CoreOs node and boot the node.
And voila. The CoreOs is set up thanks to cloudconfd.