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-rw-r--r--docker/services/README.rst51
1 files changed, 33 insertions, 18 deletions
diff --git a/docker/services/README.rst b/docker/services/README.rst
index c054e8c0..84ac842e 100644
--- a/docker/services/README.rst
+++ b/docker/services/README.rst
@@ -19,8 +19,11 @@ Building Kolla Images
TripleO currently relies on Kolla docker containers. Kolla supports container
customization and we are making use of this feature within TripleO to inject
-puppet (our configuration tool of choice) into the Kolla base images. To
-build Kolla images for TripleO adjust your kolla config to build your
+puppet (our configuration tool of choice) into the Kolla base images. The
+undercloud nova-scheduler also requires openstack-tripleo-common to
+provide custom filters.
+
+To build Kolla images for TripleO adjust your kolla config [*]_ to build your
centos base image with puppet using the example below:
.. code-block::
@@ -28,11 +31,16 @@ centos base image with puppet using the example below:
$ cat template-overrides.j2
{% extends parent_template %}
{% set base_centos_binary_packages_append = ['puppet'] %}
+{% set nova_scheduler_packages_append = ['openstack-tripleo-common'] %}
kolla-build --base centos --template-override template-overrides.j2
..
+.. [*] See the
+ `override file <https://github.com/openstack/tripleo-common/blob/master/contrib/tripleo_kolla_template_overrides.j2>`_
+ which can be used to build Kolla packages that work with TripleO, and an
+ `example build script <https://github.com/dprince/undercloud_containers/blob/master/build_kolla.sh>_.
Docker settings
---------------
@@ -54,27 +62,34 @@ are re-asserted when applying latter ones.
the container itself at the /var/lib/kolla/config_files/config.json
location and drives how kolla's external config mechanisms work.
- * docker_image: The full name of the docker image that will be used.
-
* docker_config: Data that is passed to the docker-cmd hook to configure
a container, or step of containers at each step. See the available steps
below and the related docker-cmd hook documentation in the heat-agents
project.
- * puppet_tags: Puppet resource tag names that are used to generate config
- files with puppet. Only the named config resources are used to generate
- a config file. Any service that specifies tags will have the default
- tags of 'file,concat,file_line' appended to the setting.
- Example: keystone_config
-
- * config_volume: The name of the volume (directory) where config files
- will be generated for this service. Use this as the location to
- bind mount into the running Kolla container for configuration.
-
- * config_image: The name of the docker image that will be used for
- generating configuration files. This is often the same value as
- 'docker_image' above but some containers share a common set of
- config files which are generated in a common base container.
+ * puppet_config: This section is a nested set of key value pairs
+ that drive the creation of config files using puppet.
+ Required parameters include:
+
+ * puppet_tags: Puppet resource tag names that are used to generate config
+ files with puppet. Only the named config resources are used to generate
+ a config file. Any service that specifies tags will have the default
+ tags of 'file,concat,file_line,augeas' appended to the setting.
+ Example: keystone_config
+
+ * config_volume: The name of the volume (directory) where config files
+ will be generated for this service. Use this as the location to
+ bind mount into the running Kolla container for configuration.
+
+ * config_image: The name of the docker image that will be used for
+ generating configuration files. This is often the same container
+ that the runtime service uses. Some services share a common set of
+ config files which are generated in a common base container.
+
+ * step_config: This setting controls the manifest that is used to
+ create docker config files via puppet. The puppet tags below are
+ used along with this manifest to generate a config directory for
+ this container.
* docker_puppet_tasks: This section provides data to drive the
docker-puppet.py tool directly. The task is executed only once