redis-rb Docker & Self-Hosted Deployment

# Test infrastructure for redis-rb. Topology selection via Docker profiles:
#   docker compose --profile standalone up -d --wait   (just the master)
#   docker compose --profile replica    up -d --wait   (master + replica, no sentinels)
#   docker compose --profile sentinel   up -d --wait   (master + replica + 3 sentinels)
#   docker compose --profile cluster    up -d --wait   (6-node cluster)
#   docker compose --profile modules    up -d --wait   (Redis Stack instance for module tests)
#   docker compose --profile all        up -d --wait   (everything)
#
# Override the Redis version with REDIS_VERSION=8.X.Y. The image is amd64-only,
# so on Apple Silicon the platform is pinned via Rosetta emulation.
#
# Uses host networking so the test runner reaches services via 127.0.0.1 at the
# ports redis-rb has used historically: 6381 / 6382 / 6383 / 6400-6402 / 16380-16385.
# This is the simplest model that keeps sentinel and cluster reporting host-
# reachable addresses.
#
# macOS note: Docker Desktop requires the "host networking" beta feature
# (Settings > Resources > Network > Enable host networking). Without it, Linux
# containers can use host networking inside the VM but their ports won't be
# visible on the macOS host. CI runs on Linux and is unaffected.

x-redis-image: &redis-image
  image: redislabs/client-libs-test:${REDIS_VERSION:-8.8.0}
  platform: linux/amd64
  network_mode: host
  restart: "no"

services:
  standalone:
    <<: *redis-image
    container_name: redis-rb-standalone
    profiles: [standalone, replica, sentinel, all]
    environment:
      PORT: "6381"
      REDIS_CLUSTER: "no"
      PROTECTED_MODE: "no"
    command:
      - --include
      - /redis/extra.conf
      - --unixsocket
      - /sockets/redis.sock
      - --unixsocketperm
      - "777"
    volumes:
      - ./test/support/redis.conf:/redis/extra.conf:ro
      - ./tmp:/sockets
      - ./dockers/standalone:/redis/work
    healthcheck:
      test: ["CMD", "redis-cli", "-p", "6381", "ping"]
      interval: 1s
      timeout: 3s
      retries: 30

  replica:
    <<: *redis-image
    container_name: redis-rb-replica
    profiles: [replica, sentinel, all]
    depends_on:
      standalone:
        condition: service_healthy
    environment:
      PORT: "6382"
      REDIS_CLUSTER: "no"
      PROTECTED_MODE: "no"
    command:
      - --include
      - /redis/extra.conf
      - --replicaof
      - "127.0.0.1"
      - "6381"
    volumes:
      - ./test/support/redis.conf:/redis/extra.conf:ro
      - ./dockers/replica:/redis/work
    healthcheck:
      test: ["CMD", "redis-cli", "-p", "6382", "ping"]
      interval: 1s
      timeout: 3s
      retries: 30

  sentinel:
    <<: *redis-image
    container_name: redis-rb-sentinel
    profiles: [sentinel, all]
    depends_on:
      standalone:
        condition: service_healthy
      replica:
        condition: service_healthy
    environment:
      # The entrypoint sees preconfigured node dirs under /redis/config and starts
      # each as a sentinel because their names begin with node-sentinel*.
      REDIS_CLUSTER: "no"
      PROTECTED_MODE: "no"
    volumes:
      - ./test/support/sentinel-config:/redis/config:ro
      - ./dockers/sentinel:/redis/work
    healthcheck:
      test: ["CMD", "redis-cli", "-p", "6400", "ping"]
      interval: 1s
      timeout: 3s
      retries: 30

  # A standalone instance with Redis modules (e.g. RedisJSON) loaded, dedicated to the module
  # test suite on Redis < 8 — where modules are NOT in core and need a Redis Stack image.
  modules:
    <<: *redis-image
    image: redislabs/client-libs-test:${REDIS_STACK_VERSION:-rs-7.4.0-v8}
    container_name: redis-rb-modules
    profiles: [modules]
    environment:
      PORT: "6383"
      REDIS_CLUSTER: "no"
      PROTECTED_MODE: "no"
    command:
      - --include
      - /redis/extra.conf
    volumes:
      - ./test/support/redis.conf:/redis/extra.conf:ro
      - ./dockers/modules:/redis/work
    healthcheck:
      test: ["CMD", "redis-cli", "-p", "6383", "ping"]
      interval: 1s
      timeout: 3s
      retries: 30

  cluster:
    <<: *redis-image
    container_name: redis-rb-cluster
    profiles: [cluster, all]
    environment:
      REDIS_CLUSTER: "yes"
      NODES: "6"
      REPLICAS: "1"
      PORT: "16380"
      PROTECTED_MODE: "no"
    command:
      - --include
      - /redis/extra.conf
    volumes:
      - ./test/support/redis.conf:/redis/extra.conf:ro
      - ./dockers/cluster:/redis/work
    healthcheck:
      # cluster_state:ok appears only after CLUSTER MEET + slot assignment finish.
      # This addresses the historical InitialSetupError flake.
      test: ["CMD-SHELL", "redis-cli -p 16380 cluster info | grep -q cluster_state:ok"]
      interval: 1s
      timeout: 3s
      retries: 60