Find the help related the docker swarm service
docker service --help
docker service create --name webservice --replicas 3 -d nginx
List the services
docker service ls
List the containers with their node name
docker service ps webservice
Remove a container and check that desired state of service automatically creates a replicated container
docker service ps webservice
Service Scale command
docker service scale webservice=5
docker service scale webservice=3
Remove service
docker service rm webservice
Service port mapping
docker service create --name webservice --replicas 3 --publish 80:80 -d nginx
You can access the nginx service from any of the node.
Docker service to run it on each server
docker service rm webservice
docker service create --name webservice -d --mode=global --publish=80:80 nginx
Docker Constraint on manager node
docker service rm webservice
docker service create --name webservice -d --constraint="node.role==manager" --publish=80:80 nginx
docker service scale webservice=3
Docker Constraint on worker node
docker service rm webservice
docker service create --name webservice -d --constraint="node.role==worker" --publish=80:80 nginx
docker service scale webservice=3
docker service rm webservice
Docker node labels (Create service on a specific environment)
docker node update --label-add="env=prod" worker01
docker service create --name webservice -d --constraint="node.labels.env==prod" --publish 80:80 nginx
Docker service update and Rollback
docker service create --name redis --replicas 5 --update-delay 10s redis:3.0.6
docker service ls
docker service ps redis
docker service update redis --image redis:3.0.7
docker service update redis --image redis:21
docker service ls
docker service rollback redis
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