266d123286
The atomic image name in glance was being set to 'fedora-atomic'. The glance image can be any form of atomic distro so we shouldn't name this specifically 'fedora-atomic', but instead 'atomic-image'. Change-Id: Ic539b82b92e3fdd834750e591d8622b7dc85fc6d
51 lines
1.4 KiB
Markdown
51 lines
1.4 KiB
Markdown
# Using Docker Containers With TripleO
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## Configuring TripleO with to use a container based compute node.
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Steps include:
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- Adding a base OS image to glance
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- Deploy an overcloud configured to use the docker compute heat templates
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## Getting base OS image working.
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Download the fedora atomic image into glance:
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```
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wget https://download.fedoraproject.org/pub/fedora/linux/releases/22/Cloud/x86_64/Images/Fedora-Cloud-Atomic-22-20150521.x86_64.qcow2
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glance image-create --name atomic-image --file Fedora-Cloud-Atomic-22-20150521.x86_64.qcow2 --disk-format qcow2 --container-format bare
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```
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## Configuring TripleO
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You can use the tripleo.sh script up until the point of running the Overcloud.
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https://github.com/openstack/tripleo-common/blob/master/scripts/tripleo.sh
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Create the Overcloud:
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```
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$ openstack overcloud deploy --templates=tripleo-heat-templates -e tripleo-heat-templates/environments/docker-rdo.yaml --libvirt-type=qemu
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```
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Source the overcloudrc and then you can use the overcloud.
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## Debugging
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You can ssh into the controller/compute nodes by using the heat key, eg:
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```
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nova list
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ssh heat-admin@<compute_node_ip>
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```
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You can check to see what docker containers are running:
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```
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sudo docker ps -a
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```
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To enter a container that doesn't seem to be working right:
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```
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sudo docker exec -ti <container name> /bin/bash
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```
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Then you can check logs etc.
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You can also just do a 'docker logs' on a given container.
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