a3f03e5ecd
This change modifies the template interface to support containers and
converts the compute services to composable roles.
Co-Authored-By: Dan Prince <dprince@redhat.com>
Co-Authored-By: Flavio Percoco <flavio@redhat.com>
Co-Authored-By: Martin André <m.andre@redhat.com>
Co-Authored-By: Steve Baker <sbaker@redhat.com>
Change-Id: I82fa58e19de94ec78ca242154bc6ecc592112d1b
Closes-Bug: #1644887
(cherry picked from commit 6e866224fd)
59 lines
1.9 KiB
Markdown
59 lines
1.9 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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You will want to set up the runtime puppet script delivery system described here:
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http://hardysteven.blogspot.ca/2016/08/tripleo-deploy-artifacts-and-puppet.html
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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.yaml -e tripleo-heat-templates/environments/docker-network.yaml --libvirt-type=qemu
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```
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Using Network Isolation in the Overcloud:
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```
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$ openstack overcloud deploy --templates=tripleo-heat-templates -e tripleo-heat-templates/environments/docker.yaml -e tripleo-heat-templates/environments/docker-network-isolation.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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