8d260e0e3f
Kolla-Ansible populates /etc/hosts with overcloud hosts using their API
interface IP address. When configured correctly, this allows Nova to use
the API interface for live migration of instances between compute hosts.
The hostname used is from the `ansible_hostname` variable, which is a
short hostname generated by Ansible using the first dot as a delimiter.
However, Nova defaults to use the result of socket.gethostname() to
register nova-compute services.
In deployments where hostnames are set to FQDNs, for example when using
FreeIPA, nova-compute would try to reach the other compute node using
its FQDN (as registered in the Nova database), which was absent from
/etc/hosts. This can result in failures to live migrate instances if
DNS entries don't match.
This commit populates /etc/hosts with `ansible_nodename` (hostname as
reported by the system) in addition to `ansible_hostname`, if they are
different.
Change-Id: Id058aa1db8d60c979680e6a41f7f3e1c39f98235
Closes-Bug: #1830023
(cherry picked from commit
|
||
|---|---|---|
| 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
- 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.