bd54b99132
Even though Kolla services are configured to log output to file rather than stdout, some stdout still occurs when for example the container re(starts). Since the Docker logs are not constrained in size, they can fill up the docker volumes drive and bring down the host. One example of when this is particularly problematic is when Fluentd cannot parse a log message. The warning output is written to the Docker log and in production we have seen it eat 100GB of disk space in less than a day. We could configure Fluentd not to do this, but the problem may still occur via another mechanism. Change-Id: Ia6d3935263a5909c71750b34eb69e72e6e558b7a Closes-Bug: #1794249
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
- Designate
- Freezer
- Glance
- Heat
- Horizon
- Ironic
- Karbor
- Keystone
- Kuryr
- Magnum
- Manila
- Mistral
- Murano
- Neutron
- Nova
- Octavia
- Panko
- 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.
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.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.
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.