AlertManager cluster (3x)

docker-compose.yaml

--- 
version: "3.1"
services: 
  am-01:
    command:
        - '--cluster.listen-address=0.0.0.0:9094'
        - '--cluster.peer=am-02:9094'
        - '--config.file=/etc/alertmanager/config.yaml'
        - '--log.level=error'
        - '--storage.path=/alertmanager'
    image: prom/alertmanager:v0.22.2
    ports:
        - 9091:9093
    volumes:
        - ./alertmanager/config.yaml:/etc/alertmanager/config.yaml
  am-02:
    command:
        - '--cluster.listen-address=0.0.0.0:9094'
        - '--cluster.peer=am-03:9094'
        - '--config.file=/etc/alertmanager/config.yaml'
        - '--log.level=error'
        - '--storage.path=/alertmanager'
    image: prom/alertmanager:v0.22.2
    ports:
        - 9092:9093
    volumes:
        - ./alertmanager/config.yaml:/etc/alertmanager/config.yaml
  am-03:
    command:
        - '--cluster.listen-address=0.0.0.0:9094'
        - '--cluster.peer=am-01:9094'
        - '--config.file=/etc/alertmanager/config.yaml'
        - '--log.level=error'
        - '--storage.path=/alertmanager'
    image: prom/alertmanager:v0.22.2
    ports:
        - 9093:9093
    volumes:
        - ./alertmanager/config.yaml:/etc/alertmanager/config.yaml
    

Configuration file for all alertmanager instances should be placed in alertmanager/config.yaml