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diff --git a/docker/README-containers.md b/docker/README-containers.md new file mode 100644 index 00000000..17990b54 --- /dev/null +++ b/docker/README-containers.md @@ -0,0 +1,50 @@ +# 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 atomic-image --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. |