Merge branch 'fix/autoheal' into 'master'

Make sure the health check only fails once (/tmp/ dir is not cleaned up on restart)

See merge request grafolean/grafolean-collector-snmp!12

Author: grafolean

Dockerfile

@@ -40,5 +40,6 @@ RUN \
     echo "alias l='ls -altr'" >> /root/.bashrc
 COPY --from=build-backend /snmpcollector/ /snmpcollector/
 WORKDIR /snmpcollector
-HEALTHCHECK --interval=10s --retries=1 CMD /bin/bash -c "[ ! -f /tmp/fail_health_check ]"
+# check for "fail" file and if it exists, remove it and fail the check:
+HEALTHCHECK --interval=10s --retries=1 CMD /bin/bash -c "[ ! -f /tmp/fail_health_check ] || ( rm /tmp/fail_health_check && exit 1 )"
 CMD ["python", "-m", "snmpcollector"]

docker-compose.dev.yml

@@ -47,6 +47,7 @@ services:
     container_name: autoheal-snmp
     environment:
       - AUTOHEAL_CONTAINER_LABEL=all
+      - AUTOHEAL_INTERVAL=5   # check every 5 seconds - this must be lower than the period of Docker container HEALTHCHECK we are monitoring
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock
     restart: always