Couchbase on Carina with Docker Swarm using an overlay network

couchbase.sh

$ docker-compose up -d
Creating couchbase_db_1

$ docker-compose scale db=2
WARNING: The "db" service specifies a port on the host. If multiple containers for this service are created on a single host, the port will clash.
Creating and starting couchbase_db_2 ... done

$ docker run -it --rm \
  --net couchbase_backend \
  arungupta/couchbase \
  couchbase-cli \
  server-add \
  --cluster=`docker inspect couchbase_db_1 | jq -r .[0].NetworkSettings.Networks.couchbase_backend.IPAddress`:8091 \
  --user Administrator \
  --password password \
  --server-add=`docker inspect couchbase_db_2 | jq -r .[0].NetworkSettings.Networks.couchbase_backend.IPAddress` \
  --server-add-username=Administrator \
  --server-add-password=password
SUCCESS: server-add 10.0.0.3:8091

$ open http://$(docker port couchbase_db_1 8091)

$ docker run -it --rm \
  --net couchbase_backend \
  arungupta/couchbase \
  couchbase-cli \
  rebalance \
  --cluster=`docker inspect couchbase_db_1 | jq -r .[0].NetworkSettings.Networks.couchbase_backend.IPAddress`:8091 \
  --user Administrator \
  --password password
INFO: rebalancing . . .
SUCCESS: rebalanced cluster

$ docker-compose scale db=3
WARNING: The "db" service specifies a port on the host. If multiple containers for this service are created on a single host, the port will clash.
Creating and starting couchbase_db_3 ... done

$ docker run -it --rm \
  --net couchbase_backend \
  arungupta/couchbase \
  couchbase-cli \
  rebalance \
  --cluster=`docker inspect couchbase_db_1 | jq -r .[0].NetworkSettings.Networks.couchbase_backend.IPAddress`:8091 \
  --user Administrator \
  --password password \
  --server-add=`docker inspect couchbase_db_3 | jq -r .[0].NetworkSettings.Networks.couchbase_backend.IPAddress` \
  --server-add-username=Administrator \
  --server-add-password=password
SUCCESS: server-add 10.0.0.4:8091
INFO: rebalancing . . .
SUCCESS: rebalanced cluster

$ open http://$(docker port couchbase_db_1 8091)/index.html#sec=servers

# You shouldn't need `docker inspect couchbase_db_1 | jq -r .[0].NetworkSettings.Networks.couchbase_backend.IPAddress`
# You should just be able to refer to the containers by name. e.g. couchbase_db_1:8091
# However if you do, you get the error
# ERROR: unable to server-add couchbase_db_2:8091 (400) Bad Request
# ["Prepare join failed. Requested address \"couchbase_db_2\" is not allowed: short names are not allowed. Couchbase Server requires at least one dot in a name"]

docker-compose.yml

version: "2"
services:
  db:
    image: arungupta/couchbase
    networks:
      - backend
    expose:
      - 8092
      - 8093
      - 11210
    ports:
      - 8091:8091

networks:
  backend: {}

# Normally I'd never open port 8091 on a public IP address like that but it's convenient for this example.
# If you don't open it and only have under expose, you would need to run a temporary proxy like https://community.getcarina.com/t/connecting-to-db-via-terminal/143/7?u=etoews
# to be able to access it.