You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
105 lines
4.0 KiB
105 lines
4.0 KiB
11 years ago
|
# Linux VM Contextualization
|
||
|
|
|
||
|
|
## Description
|
||
|
|
|
||
|
|
These are the source of the contextualization packages used by VM to be configured with the information generated by OpenNebula.
|
||
|
|
|
||
|
|
## Development
|
||
|
|
|
||
|
|
To contribute bug patches or new features, you can use the github Pull Request model. It is assumed that code and documentation are contributed under the Apache License 2.0.
|
||
|
|
|
||
|
|
More info:
|
||
|
|
* [How to Contribute](http://opennebula.org/addons/contribute/)
|
||
|
|
* Support: [OpenNebula user mailing list](http://opennebula.org/community:mailinglists)
|
||
|
|
* Development: [OpenNebula developers mailing list](http://opennebula.org/community:mailinglists)
|
||
|
|
* Issues Tracking: Github issues (https://github.com/OpenNebula/addon-context-linux/issues)
|
||
|
|
|
||
|
|
## Authors
|
||
|
|
|
||
|
|
* Leader: Javier Fontan (jfontan@opennebula.org)
|
||
|
|
|
||
|
|
## Compatibility
|
||
|
|
|
||
|
|
This add-on is compatible with OpenNebula 4.6.
|
||
|
|
|
||
|
|
## Requirements
|
||
|
|
|
||
|
|
* Ruby >= 1.8.7
|
||
|
|
* gem fpm
|
||
|
|
* dpkg utils for deb package creation
|
||
|
|
* rpm utils for rpm package creation
|
||
|
|
|
||
|
|
On Ubuntu/Debian you can install the package `rpm` and you will be able to generate both rpm and deb packages.
|
||
|
|
|
||
|
|
## Use
|
||
|
|
|
||
|
|
### Package Description
|
||
|
|
|
||
|
|
Here are located the files needed to generate OpenNebula contextualization packages. The packages generated contain these files:
|
||
|
|
|
||
|
|
* `/etc/udev/rules.d/*` These files disable the udev network an cdrom
|
||
|
|
generation
|
||
|
|
* `/etc/init.d/vmcontext` This is the startup script that will try to mount
|
||
|
|
context cdrom, load contextualizaton variables,
|
||
|
|
call scripts in the contextualization scripts
|
||
|
|
directory and call init.sh if it exists in the
|
||
|
|
context cd.
|
||
|
|
* `/etc/one-context.d/*` This directory holds the scripts that will be
|
||
|
|
called by vmcontext script. They should be named
|
||
|
|
starting with a number so they are called in order.
|
||
|
|
|
||
|
|
By default only the network configuration context script is included in the
|
||
|
|
packages. These scripts are different for rpm and deb based distributions and
|
||
|
|
are located in `base_<deb|rpm>` directories.
|
||
|
|
|
||
|
|
The packages also have a post-install script that does these steps:
|
||
|
|
|
||
|
|
* Delete persistent cd and net rules from /etc/udev/rules.d
|
||
|
|
* Links vmcontext script to /etc/rc<runlevel>.d
|
||
|
|
* Deletes network configuration files
|
||
|
|
|
||
|
|
### Package Generation
|
||
|
|
|
||
|
|
The script `generator.sh` generates both deb and rpm packages and can be configured to include more files in the package or change some of its parameters.
|
||
|
|
|
||
|
|
On start it creates a temporary directory and copies there:
|
||
|
|
|
||
|
|
* `base` directory
|
||
|
|
* `base_<deb|rpm>` directory
|
||
|
|
* Any file or directory from the arguments.
|
||
|
|
|
||
|
|
Then these files are included in the package.
|
||
|
|
|
||
|
|
The default parameters to create a package are as follows:
|
||
|
|
|
||
|
|
VERSION=1.0.1
|
||
|
|
MAINTAINER=C12G Labs <support@c12g.com>
|
||
|
|
LICENSE=Apache
|
||
|
|
PACKAGE_NAME=one-context
|
||
|
|
VENDOR=C12G Labs
|
||
|
|
DESCRIPTION="
|
||
|
|
This package prepares a VM image for OpenNebula:
|
||
|
|
* Disables udev net and cd persistent rules
|
||
|
|
* Deletes udev net and cd persistent rules
|
||
|
|
* Unconfigures the network
|
||
|
|
* Adds OpenNebula contextualization scripts to startup
|
||
|
|
|
||
|
|
To get support use the OpenNebula mailing list:
|
||
|
|
http://opennebula.org/community:mailinglists
|
||
|
|
"
|
||
|
|
PACKAGE_TYPE=deb
|
||
|
|
URL=http://opennebula.org
|
||
|
|
|
||
|
|
You can change any parameter setting an environment variable with the same name. For example, to generate an rpm package with a different package name:
|
||
|
|
|
||
|
|
$ PACKAGE_TYPE=rpm PACKAGE_NAME=my-context ./generate.sh
|
||
|
|
|
||
|
|
You can also include new files. This is handy to, for example, include new scripts executed to contextualize an image. For example, we can have an script that install a user ssh key. We will create the file hierarchy that will go inside the package in a directory:
|
||
|
|
|
||
|
|
$ mkdir -p ssh/etc/one-context.d
|
||
|
|
$ cp <our-ssh-script> ssh/etc/one-context.d/01-ssh-key
|
||
|
|
$ ./generate.sh ssh/etc
|
||
|
|
|
||
|
|
NOTE: The generator must be executed from the same directory it resides.
|
||
|
|
|