scyto/swarm-updating-shepherd.md

## swarm-updating-shepherd.md

      
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              swarm-updating-shepherd.md
            
          
    Update Swarm Images

i wanted to update swarm images whenever there is a new image available (even at the risk of breaking something)
it seems watchtower can't do this for swarm stacks/services - only one off containers.
I found this great container from https://github.com/djmaze/shepherd
placement considerations

Must be placed on a manager node.
Config notes

By default it will refresh all services, exclude any you dont want it to touch.
I am not using apprise for this yet, but will be implementin apprise soon.
version: "3"
services:
  shepherd:
    build: .
    image: mazzolino/shepherd
    environment:
      - SLEEP_TIME=60m
      - IGNORELIST_SERVICES="shepherd_shepherd wordpress_db wordpress_wordpress"
      - ROLLBACK_ON_FAILURE=true
      - TZ=America/Los_Angeles
      - IMAGE_AUTOCLEAN_LIMIT=2
#      - APPRISE_SIDECAR_URL=apprise-microservice:5000      	
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    deploy:
      placement:
        constraints:
        - node.role == manager