[FR] Docker healthchecks

[J4ker]

Is your feature request related to a problem? Please describe.
The healthcheck of a docker container is very important as to know whether the container is healthy, unhealthy, starting or not. Docker engine has its own healthcheck system that is quite useful to know. However it needs to be implemented in the Dockerfile. Can you please implement healthcheck for all the containers.
sablierapp requires the health status from Docker engine to start and stop docker containers.

Describe the solution you'd like
https://docs.docker.com/reference/dockerfile/#healthcheck

[DavidMStraub]

This is a documentation issue as it only affects the example compose files.

Note there is PR #27 which unfortunately (sorry) I completely failed to even review - support welcome. But note that there is a dedicated /ready endpoint in Gramps Web API:

https://github.com/gramps-project/gramps-web-api/blob/master/gramps_webapi/app.py#L241-L243

[J4ker]

thanks, here is the one that I am using now, and the healthchecks works now

services:
  grampsweb: &grampsweb
    healthcheck:
      test: ["CMD", "wget", "--spider", "--timeout=5", "http://localhost:5000"]
      interval: 30s
      timeout: 5s
      retries: 3
      start_period: 10s

  grampsweb_celery:
    healthcheck:
      test: ["CMD-SHELL", "pgrep -af celery | grep -q gramps_webapi.celery"]
      interval: 30s
      timeout: 5s
      retries: 3
      start_period: 10s

  grampsweb_redis:
    healthcheck:
      test: ["CMD", "redis-cli", "--raw", "incr", "ping"]
      interval: 10s
      retries: 5
      start_period: 30s
      timeout: 10s

[qugu]

I suggest we encapsulate the /ready endpoint into @J4ker 's suggestion and come back to #27 or create another PR:

services:
  grampsweb: &grampsweb
    healthcheck:
      test: ["CMD", "wget", "--spider", "--timeout=5", "http://localhost:5000/ready"]
      interval: 30s
      timeout: 5s
      retries: 3
      start_period: 10s

  grampsweb_celery:
    healthcheck:
      test: ["CMD-SHELL", "pgrep -af celery | grep -q gramps_webapi.celery"]
      interval: 30s
      timeout: 5s
      retries: 3
      start_period: 10s

  grampsweb_redis:
    healthcheck:
      test: ["CMD", "redis-cli", "--raw", "incr", "ping"]
      interval: 10s
      retries: 5
      start_period: 30s
      timeout: 10s