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First make sure you have the OpenStack command-line tools installed. These instructions will detail how.and Docker installed.
Next, install the python-magnumclient package:
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$ openstack server list -c Name -c Networks +---------------------------------------------+---------------------------------------------------------------------------+ | Name | Networks | +---------------------------------------------+---------------------------------------------------------------------------+ | swarm-cluster-aq5dpyxwpte5-node-1 | default=2605:fd00:4:1000:f816:3eff:feb5:293d, 10.1.2.187 | | swarm-cluster-aq5dpyxwpte5-node-0 | default=2605:fd00:4:1000:f816:3eff:fe09:ca6a, 10.1.2.188 | | swarm-cluster-aq5dpyxwpte5-node-2 | default=2605:fd00:4:1000:f816:3eff:fe15:8882, 10.1.2.185 | | swarm-cluster-aq5dpyxwpte5-primary-master-0 | default=2605:fd00:4:1000:f816:3eff:fe2a:b323, 10.1.2.184, 162.246.156.5 | |
Note either the Floating IP (162.246.156.5 in the example above) or the IPv6 address of the Master node. Then do:
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$ export DOCKER_HOST=tcp://162.246.156.5:2375 |
After that, you now have access to a fully functional Docker Swarm cluster:
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$ docker node ls ID HOSTNAME STATUS AVAILABILITY MANAGER STATUS ENGINE VERSION jqm3pmupwxlcdy4bodp3ak7n2 swarm-cluster-aq5dpyxwpte5-node-0.novalocal Ready Active 1.13.1 qseo32fewgiprqqxmf9otg7mb swarm-cluster-aq5dpyxwpte5-node-1.novalocal Ready Active 1.13.1 vegmr4raoiyq4j5upkvy9o6pi swarm-cluster-aq5dpyxwpte5-node-2.novalocal Ready Active 1.13.1 zpgho4soqk3qk74dbrny3r4es * swarm-cluster-aq5dpyxwpte5-primary-master-0.novalocal Ready Active Leader 1.13.1 $ docker run hello-world Unable to find image 'hello-world:latest' locally Trying to pull repository docker.io/library/hello-world ... sha256:3e1764d0f546ceac4565547df2ac4907fe46f007ea229fd7ef2718514bcec35d: Pulling from docker.io/library/hello-world 9bb5a5d4561a: Pull complete Digest: sha256:3e1764d0f546ceac4565547df2ac4907fe46f007ea229fd7ef2718514bcec35d Status: Downloaded newer image for docker.io/hello-world:latest Hello from Docker! This message shows that your installation appears to be working correctly. $ docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES a375d7b710d8 hello-world "/hello" 25 seconds ago Exited (0) 23 seconds ago confident_kirch |
Security Groups
By default, your COE cluster has a very strict security group configured. This is to prevent security incident mishaps such as accidentally publishing ElasticSearch, MongoDB, or similar services. When you want to make a service publicly accessible, edit your cluster's security group. You can see the group by doing the following:
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$ openstack security group list | grep cluster | c22cd9ba-6098-42b9-8a36-ff00b48924b4 | swarm-cluster-aq5dpyxwpte5-secgroup_swarm_manager-rzqnqkkw4mfd | | ee5d6145-373e-42bf-9b5d-57372f8f20a3 | swarm-cluster-aq5dpyxwpte5-secgroup_swarm_node-iyghtvtxxg3l | |
And then adding a rule to the "manager" group using either the command-line or dashboard.