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git-harry c5c577518d Fix conditional galera restarts

The task files galera_add_node.yml and galera_bootstrap.yml in the
galera_server role both restart mysql based on conditions. These
conditions are incorrectly defined causing restarts to happen every time
.

This commit addresses several issues related to how these conditions are
defined and compared.

- The the pgrep pattern for the task 'Check if mysql is running' has
been modified so that is no longer matches the ansible shell command. It
also ignores errors generated by pgrep failing to find a match so that
it can be used by other tasks.

- The registered variables, used by the when clauses, have appropriately
defined changed attributes. This commit modifies the when clauses to
make use of them.

- The when clause for the tasks 'bootstrap cluster (initialise mysql
with --wsrep-new-cluster)' and 'Restart mysql' were always being met
because 'mysql_running != 0' should be 'mysql_running.rc != 0', they has
been adjusted to use the changed status.

Closes-bug: #1444308
Change-Id: Ib2879bfe9754575fd984a1f1d132d5a42b848e21

2015-04-15 15:31:59 +01:00

etc

Remove md5sum check for environment vs user_config

2015-04-13 11:15:04 +01:00

playbooks

Fix conditional galera restarts

2015-04-15 15:31:59 +01:00

rpc_deployment

Convert existing roles into galaxy roles

2015-02-18 10:56:25 +00:00

scripts

Merge "Adds Flake8 job to the lint check"

2015-04-13 18:08:07 +00:00

.gitignore

Initial Commit

2014-08-26 18:08:15 -05:00

.gitreview

Adds .gitreview file to repo

2014-12-02 17:22:12 -06:00

ansible-role-requirements.yml.example

Convert existing roles into galaxy roles

2015-02-18 10:56:25 +00:00

CONTRIBUTING.rst

Updating CONTRIBUTING for commit messages

2015-04-06 10:38:40 -05:00

dev-requirements.txt

updated dev requirements to allow for linting python

2015-04-07 10:25:20 +01:00

development-stack.rst

Removed all rackspace related logging parts

2015-03-14 22:35:59 -05:00

LICENSE.txt

Convert existing roles into galaxy roles

2015-02-18 10:56:25 +00:00

README.rst

Updated ansible to use the latest stable release

2015-04-08 08:29:53 +01:00

requirements.txt

Bump requirements in preparation for kilo

2015-04-03 18:02:48 +00:00

README.rst

OpenStack Ansible Deployment

date: 2015-02-02 22:00
tags: lxc, openstack, cloud, ansible
category: *nix

Playbooks

There are several playbooks within that will setup hosts for use in OpenStack Cloud. The playbooks will enable LXC on hosts and provides the ability to deploy LXC containers for use within openstack.

Plays:

setup-hosts.yml Performs host setup for use with LXC in the OpenStack hosts.
setup-infrastructure.yml Performs all of the setup for all infrastructure components.
setup-openstack.yml Performs all of the setup for all of the OpenStack components.

If you dont want to run plays individually you can simply run setup-everything.yml which will perform all of the setup and installation for you.

Basic Setup:

If you have any roles that you'd like to have pulled in that are outside the scope and or replace modules within this repository please add them to the ansible-role-requirements.yml file. In this file you will want to fill in the details for the role you want to pull in using standard ansible galaxy format.

- name: SuperAwesomeModule
  src: https://github.com/super-user/SuperAwesomeModule
  version: master

Run the ./scripts/bootstrap-ansible.sh script, which will install, pip, ansible 1.9.x, all of the required python packages, and bring in any third part ansible roles that you may want to add to the deployment.
Copy the etc/openstack_deploy directory to /etc/openstack_deploy.
Fill in your openstack_deploy/openstack_user_config.yml, openstack_deploy/user_secrets.yml and openstack_deploy/user_variables.yml files which you've just copied to your /etc/ directory.
Generate all of your random passwords executing scripts/pw-token-gen.py --file /etc/openstack_deploy/user_secrets.yml.
Accomplish all of the host networking that you want to use within the deployment. See the etc/network directory in this repository for an example network setup.
When ready change to the playbooks/ directory and execute your desired plays. IE:

openstack-ansible setup-everything.yml

Notes

If you run the ./scripts/bootstrap-ansible.sh script a wrapper script will be added to your system that wraps the ansible-playbook command to simplify the arguments required to run openstack ansible plays. The name of the wrapper script is openstack-ansible.
The lxc network is created within the lxcbr0 interface. This supports both NAT networks as well as more traditional networking. If NAT is enabled (default) the IPtables rules will be created along with the interface as a post-up processes. If you ever need to recreate the rules and or restart the dnsmask process you can bounce the interface IE: ifdown lxcb0; ifup lxcbr0 or you can use the lxc-system-manage command.
The tool lxc-system-manage is available on all lxc hosts and can assist in recreating parts of the LXC system whenever its needed.
Inventory is generated by executing the playbooks/inventory/dynamic_inventory.py script. This is configured in the playbooks/ansible.cfg file.

Bugs and Blueprints

Everything we do is in launchpad and gerrit. If you'd like to raise a bug, feature request, or are looking for ways to contribute please go to "https://launchpad.net/openstack-ansible".

Documentation

While no os-ansible-deployment community documentation exists (yet), other than the .rst files present in this repository, comprehensive installation guides for Rackspace Private Cloud (an opinionated version of os-ansible-deployment) are available at "http://www.rackspace.com/knowledge_center/getting-started/rackspace-private-cloud".

Note:: These docs may not be up-to-date with the current release of this repository however they are still a good source of documentation.