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Andy McCrae 7407cb9f97 Adjust key distribution mechanism for Swift

In preparation for Swift global cluster we need a solution that moves
away from a centralised "memcache" server as a distribution mechanism,
since we can't guarantee that all swift hosts will have access to one
memcache server.

This patch uses ansible variables (which were already being set) as the
distribution mechanism so that the authorized_keys file can be generated
by using the ansible variables set for each host as part of the tasks.

Additionally this moves away from using "shell" commands to generate the
key and adjust the authorized_keys file and instead uses the built in
ansible "authorized_keys" module as well as the built in
"generate_ssh_key" option for the "user" module.

Finally this adds a "swift_recreate_keys" option which can be set to
"True" in order to recreate all the swift keys, and recreate the
authorized_keys file. This was happening on every run and will now not
happen by default, unless the variable is set to "True".

Change-Id: Ic4eb05042244c32050233e1445633d5731f9603b
Partially-Implements: blueprint multi-region-swift

2015-07-12 10:25:22 +01:00

doc

Merge "Document some of the common scripts"

2015-07-06 17:31:22 +00:00

etc

Merge "Default to use host/port for glance_api_servers"

2015-07-02 15:28:33 +00:00

playbooks

Adjust key distribution mechanism for Swift

2015-07-12 10:25:22 +01:00

scripts

Set default inventory file for inventory-manage.py

2015-07-07 10:38:02 +00:00

.gitignore

Updated master to the latest SHAs - 22.06.2015

2015-06-24 15:50:42 +00:00

.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

Port basic installation guide

2015-06-11 09:17:56 -05:00

development-stack.rst

fix bash/curl command in development-stack.rst

2015-05-27 11:21:27 +01:00

LICENSE.txt

Convert existing roles into galaxy roles

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

README.rst

Set permissions on user_secrets.yml to 0600

2015-06-11 20:39:46 +00:00

requirements.txt

Update the tempest install environment

2015-05-06 07:46:39 -05:00

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.
If you don't use the pw-token-gen.py script you will want to ensure the permissions on /etc/openstack_deploy/user_secrets.yml are more secure. chmod 0600 /etc/openstack_deploy/user_secrets.yml

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

To build the docs make sure that you have installed the python requirements as found within the dev-requirements.txt file and then run the following command from within the doc directory.

make html