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authorDan Prince <dprince@redhat.com>2015-08-05 08:55:57 -0400
committerRyan Hallisey <rhallise@redhat.com>2015-10-08 07:34:26 -0400
commit65958395f4ff4de30ccc927df855555cbe014be2 (patch)
treea3038229c675dec5bfbc61b5f7fecd60965c7450 /docker/README-containers.md
parentd82de68c774f152781633823394738520bf781a3 (diff)
Docker compute role configured via Puppet
This change adds a containerized version of the overcloud compute node for TripleO. Configuration files are generated via OpenStack Puppet modules which are then used to externally configure kolla containers for each OpenStack service. See the README-containers.md file for more information on how to set this up. This uses AtomicOS as a base operating system and requires that we bootstrap the image with a container which contains the required os-collect-config agent hooks to support running puppet, shell scripts, and docker compose. Change-Id: Ic8331f52b20a041803a9d74cdf0eb81266d4e03c Co-Authored-By: Ian Main <imain@redhat.com> Co-Authored-By: Ryan Hallisey <rhallise@redhat.com>
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+# Using Docker Containers With TripleO
+
+## Configuring TripleO with to use a container based compute node.
+
+Steps include:
+- Adding a base OS image to glance
+- Deploy an overcloud configured to use the docker compute heat templates
+
+## Getting base OS image working.
+
+Download the fedora atomic image into glance:
+
+```
+wget https://download.fedoraproject.org/pub/fedora/linux/releases/22/Cloud/x86_64/Images/Fedora-Cloud-Atomic-22-20150521.x86_64.qcow2
+glance image-create --name fedora-atomic --file Fedora-Cloud-Atomic-22-20150521.x86_64.qcow2 --disk-format qcow2 --container-format bare
+```
+
+## Configuring TripleO
+
+You can use the tripleo.sh script up until the point of running the Overcloud.
+https://github.com/openstack/tripleo-common/blob/master/scripts/tripleo.sh
+
+Create the Overcloud:
+```
+$ openstack overcloud deploy --templates=tripleo-heat-templates -e tripleo-heat-templates/environments/docker-rdo.yaml --libvirt-type=qemu
+```
+
+Source the overcloudrc and then you can use the overcloud.
+
+## Debugging
+
+You can ssh into the controller/compute nodes by using the heat key, eg:
+```
+nova list
+ssh heat-admin@<compute_node_ip>
+```
+
+You can check to see what docker containers are running:
+```
+sudo docker ps -a
+```
+
+To enter a container that doesn't seem to be working right:
+```
+sudo docker exec -ti <container name> /bin/bash
+```
+
+Then you can check logs etc.
+
+You can also just do a 'docker logs' on a given container.