Ansible deployment of the Kolla containers
97cb30cdd8
This proposal will add support to Kolla-Ansible for Cloudkitty InfluxDB storage system deployment. The feature of InfluxDB as the storage backend for Cloudkitty was created with the following commit https://github.com/openstack/cloudkitty/commit/ c4758e78b49386145309a44623502f8095a2c7ee Problem Description =================== With the addition of support for InfluxDB in Cloudkitty, which is achieving general availability via Stein release, we need a method to easily configure/support this storage backend system via Kolla-ansible. Kolla-ansible is already able to deploy and configure an InfluxDB system. Therefore, this proposal will use the InfluxDB deployment configured via Kolla-ansible to connect to CloudKitty and use it as a storage backend. If we do not provide a method for users (operators) to manage Cloudkitty storage backend via Kolla-ansible, the user has to execute these changes/configurations manually (or via some other set of automated scripts), which creates distributed set of configuration files, "configurations" scripts that have different versioning schemas and life cycles. Proposed Change =============== Architecture ------------ We propose a flag that users can use to make Kolla-ansible configure CloudKitty to use InfluxDB as the storage backend system. When enabling this flag, Kolla-ansible will also enable the deployment of the InfluxDB via Kolla-ansible automatically. CloudKitty will be configured accordingly to [1] and [2]. We will also externalize the "retention_policy", "use_ssl", and "insecure", to allow fine granular configurations to operators. All of these configurations will only be used when configured; therefore, when they are not set, the default value/behavior defined in Cloudkitty will be used. Moreover, when we configure "use_ssl" to "true", the user will be able to set "cafile" to a custom trusted CA file. Again, if these variables are not set, the default ones in Cloudkitty will be used. Implementation -------------- We need to introduce a new variable called `cloudkitty_storage_backend`. Valid options are `sqlalchemy` or `influxdb`. The default value in Kolla-ansible is `sqlalchemy` for backward compatibility. Then, the first step is to change the definition for the following variable: `/ansible/group_vars/all.yml:enable_influxdb: "{{ enable_monasca | bool }}"` We also need to enable InfluxDB when CloudKitty is configured to use it as the storage backend. Afterwards, we need to create tasks in CloudKitty configurations to create the InfluxDB schema and configure the configuration files accordingly. Alternatives ------------ The alternative would be to execute the configurations manually or handle it via a different set of scripts and configurations files, which can become cumbersome with time. Security Impact --------------- None identified by the author of this spec Notifications Impact -------------------- Operators that are already deploying CloudKitty with InfluxDB as storage backend would need to convert their configurations to Kolla-ansible (if they wish to adopt Kolla-ansible to execute these tasks). Also, deployments (OpenStack environments) that were created with Cloudkitty using storage v1 will need to migrate all of their data to V2 before enabling InfluxDB as the storage system. Other End User Impact --------------------- None. Performance Impact ------------------ None. Other Deployer Impact --------------------- New configuration options will be available for CloudKitty. * cloudkitty_storage_backend * cloudkitty_influxdb_retention_policy * cloudkitty_influxdb_use_ssl * cloudkitty_influxdb_cafile * cloudkitty_influxdb_insecure_connections * cloudkitty_influxdb_name Developer Impact ---------------- None Implementation ============== Assignee -------- * `Rafael Weingärtner <rafaelweingartne>` Work Items ---------- * Extend InfluxDB "enable/disable" variable * Add new tasks to configure Cloudkitty accordingly to these new variables that are presented above * Write documentation and release notes Dependencies ============ None Documentation Impact ==================== New documentation for the feature. References ========== [1] `https://docs.openstack.org/cloudkitty/latest/admin/configuration/storage.html#influxdb-v2` [2] `https://docs.openstack.org/cloudkitty/latest/admin/configuration/collector.html#metric-collection` Change-Id: I65670cb827f8ca5f8529e1786ece635fe44475b0 Signed-off-by: Rafael Weingärtner <rafael@apache.org> |
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| ansible | ||
| contrib | ||
| deploy-guide/source | ||
| doc | ||
| etc/kolla | ||
| kolla_ansible | ||
| releasenotes | ||
| specs | ||
| tests | ||
| tools | ||
| zuul.d | ||
| .gitignore | ||
| .gitreview | ||
| .stestr.conf | ||
| .yamllint | ||
| bindep.txt | ||
| LICENSE | ||
| lower-constraints.txt | ||
| README.rst | ||
| requirements.txt | ||
| setup.cfg | ||
| setup.py | ||
| test-requirements.txt | ||
| tox.ini | ||
Team and repository tags
Kolla-Ansible Overview
The Kolla-Ansible is a deliverable project separated from Kolla project.
Kolla-Ansible deploys OpenStack services and infrastructure components in Docker containers.
Kolla's mission statement is:
To provide production-ready containers and deployment tools for operating
OpenStack clouds.Kolla is highly opinionated out of the box, but allows for complete customization. This permits operators with little experience to deploy OpenStack quickly and as experience grows modify the OpenStack configuration to suit the operator's exact requirements.
Getting Started
Learn about Kolla-Ansible by reading the documentation online Kolla-Ansible.
Get started by reading the Developer Quickstart.
OpenStack services
Kolla-Ansible deploys containers for the following OpenStack projects:
- Aodh
- Barbican
- Bifrost
- Blazar
- Ceilometer
- Cinder
- CloudKitty
- Congress
- Cyborg
- Designate
- Freezer
- Glance
- Heat
- Horizon
- Ironic
- Karbor
- Keystone
- Kuryr
- Magnum
- Manila
- Mistral
- Monasca
- Murano
- Neutron
- Nova
- Octavia
- Panko
- Qinling
- Rally
- Sahara
- Searchlight
- Senlin
- Solum
- Swift
- Tacker
- Tempest
- Trove
- Vitrage
- Vmtp
- Watcher
- Zun
Infrastructure components
Kolla-Ansible deploys containers for the following infrastructure components:
- Ceph implementation for Cinder, Glance and Nova.
- Collectd, Telegraf, InfluxDB, Prometheus, and Grafana for performance monitoring.
- Elasticsearch and Kibana to search, analyze, and visualize log messages.
- Etcd a distributed reliable key-value store.
- Fluentd as an open source data collector for unified logging layer.
- Gnocchi A time-series storage database.
- HAProxy and Keepalived for high availability of services and their endpoints.
- MariaDB and Galera Cluster for highly available MySQL databases.
- Memcached a distributed memory object caching system.
- MongoDB as a database back end for Panko.
- Open vSwitch and Linuxbridge backends for Neutron.
- RabbitMQ as a messaging backend for communication between services.
- Redis an in-memory data structure store.
- Zookeeper an open-source server which enables highly reliable distributed coordination.
Directories
ansible- Contains Ansible playbooks to deploy OpenStack services and infrastructure components in Docker containers.contrib- Contains demos scenarios for Heat, Magnum and Tacker and a development environment for Vagrantdoc- Contains documentation.etc- Contains a reference etc directory structure which requires configuration of a small number of configuration variables to achieve a working All-in-One (AIO) deployment.kolla_ansible- Contains password generation script.releasenotes- Contains releasenote of all features added in Kolla-Ansible.specs- Contains the Kolla-Ansible communities key arguments about architectural shifts in the code base.tests- Contains functional testing tools.tools- Contains tools for interacting with Kolla-Ansible.zuul.d- Contains project gate job definitions.
Getting Involved
Need a feature? Find a bug? Let us know! Contributions are much appreciated and should follow the standard Gerrit workflow.
- We communicate using the #openstack-kolla irc channel.
- File bugs, blueprints, track releases, etc on Launchpad.
- Attend weekly meetings.
- Contribute code.
Contributors
Check out who's contributing code and contributing reviews.
Notices
Docker and the Docker logo are trademarks or registered trademarks of Docker, Inc. in the United States and/or other countries. Docker, Inc. and other parties may also have trademark rights in other terms used herein.