feat(health): add health check

[fzipi]

Signed-off-by: Felipe Zipitria [email protected]

Adds health check to the /healtz endpoint configured in all containers.

Fixes #136.

Note: I did try adding variables to the different times, but docker doesn't like it. :( My idea was to add 4 new variables HEALTHCHECK_, but looks like we can't.

❯ docker-compose build apache-waf
[+] Building 0.1s (2/2) FINISHED
 => [internal] load build definition from Dockerfile                                                                                                                                             0.0s
 => => transferring dockerfile: 9.17kB                                                                                                                                                           0.0s
 => [internal] load .dockerignore                                                                                                                                                                0.0s
 => => transferring context: 2B                                                                                                                                                                  0.0s
failed to solve: rpc error: code = Unknown desc = failed to solve with frontend dockerfile.v0: failed to create LLB definition: dockerfile parse error line 190: time: invalid duration "${HEALTHCHECK_INTERVAL}"