Is it possible to update images and notify for specific containers?

[binderth]

I have a bunch of containers running and I'd like to update all of them automatically - except one container. But I'd like to receive a notification for that one.

What I did so far:

version: "3.5"
services:
  watchtower:
    image: containrrr/watchtower:latest
    container_name: watchtower
    restart: unless-stopped
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    environment:
      - WATCHTOWER_CLEANUP=true
      - WATCHTOWER_INCLUDE_RESTARTING=false
      - WATCHTOWER_INCLUDE_STOPPED=true
      - WATCHTOWER_REVIVE_STOPPED=false
      - WATCHTOWER_NO_RESTART=false
      - WATCHTOWER_TIMEOUT=30s
      - WATCHTOWER_SCHEDULE=0 0 4 * * *
      - WATCHTOWER_DEBUG=false
      - WATCHTOWER_ROLLING_RESTART=true
      - WATCHTOWER_NOTIFICATIONS=email
      - [email protected]
      - [email protected]
      - WATCHTOWER_NOTIFICATION_EMAIL_SERVER=smtp.yyy.de
      - WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PORT=587
      - [email protected]
      - WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PASSWORD=***
      - WATCHTOWER_NOTIFICATION_EMAIL_SUBJECTTAG=Homeserver
      - WATCHTOWER_NOTIFICATION_EMAIL_DELAY=2
      - TZ=Europe/Berlin
    network_mode: bridge

on the only container I'd like to update manually (cause it regularly has breaking changes) I configured:

    labels:
      - "com.centurylinklabs.watchtower.enable=false"

That one doesn't get updated as configured - but I'd like to receive a notification, if there's a new image available for it nevertheless.
Is this possible?

[evilmumi]

I have the same "wish". A lot of containers should update automatically but some should only send a notification to touch manually.

I tried with "com.centurylinklabs.watchtower.monitor-only=true" but it want do the job like i want to.

WATCHTOWER_LABEL_ENABLE | true

WATCHTOWER_LABEL_TAKE_PRECEDENCE | true

WATCHTOWER_MONITOR_ONLY | false

[binderth]

I did some tests (had to wait for my desired project to update the docker a few times 😀).

It is already possible with only the following label on the respective "update only" container:

    labels:
      - "com.centurylinklabs.watchtower.monitor-only=true"

my watchtower-config:

    environment:
      - WATCHTOWER_CLEANUP=true
      - WATCHTOWER_INCLUDE_RESTARTING=false
      - WATCHTOWER_INCLUDE_STOPPED=true
      - WATCHTOWER_REVIVE_STOPPED=false
      - WATCHTOWER_NO_RESTART=false
      - WATCHTOWER_TIMEOUT=30s
      - WATCHTOWER_SCHEDULE=0 0 4 * * *
      - WATCHTOWER_DEBUG=false
      - WATCHTOWER_ROLLING_RESTART=true
      - WATCHTOWER_NOTIFICATIONS=email
      - WATCHTOWER_NOTIFICATION_EMAIL_FROM=xxx@yyy
      - WATCHTOWER_NOTIFICATION_EMAIL_TO=xxx@yyy
      - WATCHTOWER_NOTIFICATION_EMAIL_SERVER=smtp.server
      - WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PORT=587
      - WATCHTOWER_NOTIFICATION_EMAIL_SERVER_USER=xxx@yyy
      - WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PASSWORD=zzzz
      - WATCHTOWER_NOTIFICATION_EMAIL_SUBJECTTAG=Homeserver
      - WATCHTOWER_NOTIFICATION_EMAIL_DELAY=2

[evilmumi]

No WATCHTOWER_LABEL_TAKE_PRECEDENCE=true or WATCHTOWER_LABEL_ENABLE=true
so just com.centurylinklabs.watchtower.monitor-only=true is enough to let ONE just be monitored and the rest is updated automatically?

[binderth]

Yes.
Please be sure to insert the label into the container(!) you want to monitor-only! Not in the watchtower container.

[evilmumi]

Thanks - seems that it works :)