| ======== |
| Overview |
| ======== |
| |
| DevStack has evolved to support a large number of configuration options |
| and alternative platforms and support services. That evolution has grown |
| well beyond what was originally intended and the majority of |
| configuration combinations are rarely, if ever, tested. DevStack is not |
| a general OpenStack installer and was never meant to be everything to |
| everyone.. |
| |
| Below is a list of what is specifically is supported (read that as |
| "tested") going forward. |
| |
| Supported Components |
| ==================== |
| |
| Base OS |
| ------- |
| |
| *The OpenStack Technical Committee (TC) has defined the current CI |
| strategy to include the latest Ubuntu release and the latest RHEL |
| release (for Python 2.6 testing).* |
| |
| - Ubuntu: current LTS release plus current development release |
| - Fedora: current release plus previous release |
| - RHEL: current major release |
| - Other OS platforms may continue to be included but the maintenance of |
| those platforms shall not be assumed simply due to their presence. |
| Having a listed point-of-contact for each additional OS will greatly |
| increase its chance of being well-maintained. |
| - Patches for Ubuntu and/or Fedora will not be held up due to |
| side-effects on other OS platforms. |
| |
| Databases |
| --------- |
| |
| *As packaged by the host OS* |
| |
| - MySQL |
| - PostgreSQL |
| |
| Queues |
| ------ |
| |
| *As packaged by the host OS* |
| |
| - Rabbit |
| - Qpid |
| |
| Web Server |
| ---------- |
| |
| *As packaged by the host OS* |
| |
| - Apache |
| |
| OpenStack Network |
| ----------------- |
| |
| *Default to Nova Network, optionally use Neutron* |
| |
| - Nova Network: FlatDHCP |
| - Neutron: A basic configuration approximating the original FlatDHCP |
| mode using linuxbridge or OpenVSwitch. |
| |
| Services |
| -------- |
| |
| The default services configured by DevStack are Identity (Keystone), |
| Object Storage (Swift), Image Storage (Glance), Block Storage (Cinder), |
| Compute (Nova), Network (Nova), Dashboard (Horizon), Orchestration |
| (Heat) |
| |
| Additional services not included directly in DevStack can be tied in to |
| ``stack.sh`` using the :doc:`plugin mechanism <plugins>` to call |
| scripts that perform the configuration and startup of the service. |
| |
| Node Configurations |
| ------------------- |
| |
| - single node |
| - multi-node is not tested regularly by the core team, and even then |
| only minimal configurations are reviewed |
| |
| Exercises |
| --------- |
| |
| The DevStack exercise scripts are no longer used as integration and gate |
| testing as that job has transitioned to Tempest. They are still |
| maintained as a demonstrations of using OpenStack from the command line |
| and for quick operational testing. |