diff options
Diffstat (limited to 'docker')
| -rw-r--r-- | docker/Dockerfile-workers | 3 | ||||
| -rw-r--r-- | docker/conf-workers/healthcheck.sh.j2 | 6 | ||||
| -rwxr-xr-x | docker/configure_workers_and_start.py | 13 |
3 files changed, 22 insertions, 0 deletions
diff --git a/docker/Dockerfile-workers b/docker/Dockerfile-workers index 969cf972..46f2e173 100644 --- a/docker/Dockerfile-workers +++ b/docker/Dockerfile-workers @@ -21,3 +21,6 @@ VOLUME ["/data"] # files to run the desired worker configuration. Will start supervisord. COPY ./docker/configure_workers_and_start.py /configure_workers_and_start.py ENTRYPOINT ["/configure_workers_and_start.py"] + +HEALTHCHECK --start-period=5s --interval=15s --timeout=5s \ + CMD /bin/sh /healthcheck.sh diff --git a/docker/conf-workers/healthcheck.sh.j2 b/docker/conf-workers/healthcheck.sh.j2 new file mode 100644 index 00000000..79c621f8 --- /dev/null +++ b/docker/conf-workers/healthcheck.sh.j2 @@ -0,0 +1,6 @@ +#!/bin/sh +# This healthcheck script is designed to return OK when every +# host involved returns OK +{%- for healthcheck_url in healthcheck_urls %} +curl -fSs {{ healthcheck_url }} || exit 1 +{%- endfor %} diff --git a/docker/configure_workers_and_start.py b/docker/configure_workers_and_start.py index f4ac1c22..adbb551c 100755 --- a/docker/configure_workers_and_start.py +++ b/docker/configure_workers_and_start.py @@ -474,10 +474,16 @@ def generate_worker_files(environ, config_path: str, data_dir: str): # Determine the load-balancing upstreams to configure nginx_upstream_config = "" + + # At the same time, prepare a list of internal endpoints to healthcheck + # starting with the main process which exists even if no workers do. + healthcheck_urls = ["http://localhost:8080/health"] + for upstream_worker_type, upstream_worker_ports in nginx_upstreams.items(): body = "" for port in upstream_worker_ports: body += " server localhost:%d;\n" % (port,) + healthcheck_urls.append("http://localhost:%d/health" % (port,)) # Add to the list of configured upstreams nginx_upstream_config += NGINX_UPSTREAM_CONFIG_BLOCK.format( @@ -510,6 +516,13 @@ def generate_worker_files(environ, config_path: str, data_dir: str): worker_config=supervisord_config, ) + # healthcheck config + convert( + "/conf/healthcheck.sh.j2", + "/healthcheck.sh", + healthcheck_urls=healthcheck_urls, + ) + # Ensure the logging directory exists log_dir = data_dir + "/logs" if not os.path.exists(log_dir): |