Merge pull request #32 from hasnat/patch-3

Do a proper self healthcheck

Dockerfile

@@ -6,6 +6,6 @@ RUN apk add --no-cache curl jq
 COPY docker-entrypoint /
 ENTRYPOINT ["/docker-entrypoint"]
 
-HEALTHCHECK --interval=5s CMD exit 0
+HEALTHCHECK --interval=5s CMD /docker-entrypoint healthcheck
 
 CMD ["autoheal"]

docker-entrypoint

@@ -12,11 +12,17 @@ term_handler() {
 }
 
 docker_curl() {
-  curl --max-time "${CURL_TIMEOUT}" --no-buffer -s --unix-socket "${DOCKER_SOCK}" "$@"
+  curl --max-time "${CURL_TIMEOUT}" --no-buffer -s --unix-socket "${DOCKER_SOCK}" "$@" || return 1
+  return 0
 }
 
 trap 'kill ${!}; term_handler' SIGTERM
 
+if [ "$1" = 'healthcheck' ]; then
+  docker_curl --fail http://localhost/_ping
+  exit $?
+fi
+
 if [ "$1" = 'autoheal' ] && [ -e ${DOCKER_SOCK} ]; then
   
   # https://docs.docker.com/engine/api/v1.25/