Unable to join nodes using docker compose

[smoesy]

Hi community!

I’m trying to set up Bitbucket using Docker Compose and enable clustering. However, I keep seeing the following message in the logs:

com.hazelcast.instance.impl.Node [172.28.0.11]:5701 [bitbucket-cluster] [5.4.1] No join method is enabled! Starting standalone. 

I’ve tried multiple configurations, but Hazelcast always starts in standalone mode. I’m using Docker Compose with 2 Bitbucket instances, on the same host, and I want them to form a cluster.

Has anyone successfully configured Bitbucket clustering in Docker Compose? What settings are required to enable Hazelcast clustering?

This is my compose file:

version: "3.8"

networks:

  bitbucket-net:

    driver: bridge

    ipam:

      config:

        - subnet: 172.28.0.0/16

services:

  postgres:

    image: postgres:16

    container_name: bitbucket-db

    environment:

      POSTGRES_DB: bitbucket-db

      POSTGRES_USER: bitbucket

      POSTGRES_PASSWORD: bitbucket

    volumes:

      - ./pgdata:/var/lib/postgresql/data

    networks:

      - bitbucket-net

  bitbucket-1:

    image: atlassian/bitbucket:latest

    container_name: bitbucket-1

    depends_on:

      - postgres

    environment:

      SEARCH_ENABLED: "false"

      BITBUCKET_CLUSTERED: "true"

      BITBUCKET_SHARED_HOME: /var/atlassian/application-data/bitbucket/shared

      JDBC_DRIVER: org.postgresql.Driver

      JDBC_URL: jdbc:postgresql://bitbucket-db:5432/bitbucket-db?targetServerType=master

      JDBC_USER: bitbucket

      JDBC_PASSWORD: bitbucket

      BITBUCKET_NODE_ID: "node1"

      # Configurare Hazelcast (clustering)

      HAZELCAST_MANAGEMENTSERVER_ENABLED: "true"

      HAZELCAST_PORT: "5701"

      HAZELCAST_GROUP_NAME: "bitbucket-cluster"

      HAZELCAST_GROUP_PASSWORD: "secret123"

      HAZELCAST_NETWORK_INTERFACES: "172.28.0.*"

      HAZELCAST_NETWORK_JOIN_MULTICAST_ENABLED: "false"

      HAZELCAST_NETWORK_JOIN_TCPIP_ENABLED: "true"

      HAZELCAST_NETWORK_TCPIP_MEMBERS: "172.28.0.11:5701,172.28.0.12:5701"

    ports:

      - "7990:7990"

      - "7999:7999"

    volumes:

      - ./bitbucket-home/node1:/var/atlassian/application-data/bitbucket

      - shared-home:/var/atlassian/application-data/bitbucket/shared

    networks:

      bitbucket-net:

        ipv4_address: 172.28.0.11

  bitbucket-2:

    image: atlassian/bitbucket:latest

    container_name: bitbucket-2

    depends_on:

      - postgres

    environment:

      SEARCH_ENABLED: "false"

      BITBUCKET_CLUSTERED: "true"

      BITBUCKET_SHARED_HOME: /var/atlassian/shared-home

      JDBC_DRIVER: org.postgresql.Driver

      JDBC_URL: jdbc:postgresql://bitbucket-db:5432/bitbucket-db?targetServerType=master

      JDBC_USER: bitbucket

      JDBC_PASSWORD: bitbucket

      BITBUCKET_NODE_ID: "node2"

      # Configurare Hazelcast (clustering)

      HAZELCAST_MANAGEMENTSERVER_ENABLED: "true"

      HAZELCAST_PORT: "5701"

      HAZELCAST_GROUP_NAME: "bitbucket-cluster"

      HAZELCAST_GROUP_PASSWORD: "secret123"

      HAZELCAST_NETWORK_INTERFACES: "172.28.0.*"

      HAZELCAST_NETWORK_JOIN_MULTICAST_ENABLED: "false"

      HAZELCAST_NETWORK_JOIN_TCPIP_ENABLED: "true"

      HAZELCAST_NETWORK_TCPIP_MEMBERS: "172.28.0.11:5701,172.28.0.12:5701"

    ports:

      - "7991:7990"

      - "8000:7999"

    volumes:

      - ./bitbucket-home/node2:/var/atlassian/application-data/bitbucket

      - shared-home:/var/atlassian/application-data/bitbucket/shared

    networks:

      bitbucket-net:

        ipv4_address: 172.28.0.12

volumes:

  shared-home:

    driver_opts:

      type: "nfs"

      o: "addr=192.168.20.193,nolock,soft,rw"

      device: ":/srv/bitbucket/shared-home"