add healthchecks to ui and autoconf docker images

src/autoconf/Dockerfile

@@ -62,4 +62,6 @@ WORKDIR /usr/share/bunkerweb/autoconf
 
 USER root:nginx
 
+HEALTHCHECK --interval=10s --timeout=10s --start-period=30s --retries=6 CMD /usr/share/bunkerweb/helpers/healthcheck-autoconf.sh
+
 CMD ["python3", "/usr/share/bunkerweb/autoconf/main.py"]

src/autoconf/main.py

@@ -4,6 +4,7 @@ from os import _exit, getenv
 from signal import SIGINT, SIGTERM, signal
 from sys import exit as sys_exit, path as sys_path
 from traceback import format_exc
+from pathlib import Path
 
 sys_path.extend(
     (
@@ -69,9 +70,14 @@ try:
         _exit(1)
 
     # Process events
+    Path("/var/tmp/bunkerweb/autoconf.healthy").write_text("ok")
     logger.info("Processing events ...")
     controller.process_events()
 
 except:
     logger.error(f"Exception while running autoconf :\n{format_exc()}")
     sys_exit(1)
+finally:
+    Path("/var/tmp/bunkerweb/autoconf.healthy").unlink(missing_ok=True)
+
+

src/common/helpers/healthcheck-autoconf.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+if [ ! -f /var/tmp/bunkerweb/autoconf.healthy ] ; then
+	exit 1
+fi
+
+exit 0

src/common/helpers/healthcheck-ui.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+if [ ! -f /var/tmp/bunkerweb/ui.pid ] ; then
+	exit 1
+fi
+
+if [ ! -f /var/tmp/bunkerweb/ui.healthy ] ; then
+	exit 1
+fi
+
+exit 0

src/ui/Dockerfile

@@ -60,5 +60,7 @@ WORKDIR /usr/share/bunkerweb/ui
 
 USER ui:ui
 
+HEALTHCHECK --interval=10s --timeout=10s --start-period=30s --retries=6 CMD /usr/share/bunkerweb/helpers/healthcheck-ui.sh
+
 ENV PYTHONPATH /usr/share/bunkerweb/deps/python
 CMD ["python3", "-m", "gunicorn", "--access-logfile=-", "--graceful-timeout=0", "--bind=0.0.0.0:7000", "--workers=1", "--threads=2", "--user", "ui", "--group", "ui", "main:app"]

src/ui/main.py

@@ -98,6 +98,8 @@ def stop_gunicorn():
 def stop(status, stop=True):
     if Path("/var/tmp/bunkerweb/ui.pid").exists():
         Path("/var/tmp/bunkerweb/ui.pid").unlink()
+    if Path("/var/tmp/bunkerweb/ui.healthy").exists():
+        Path("/var/tmp/bunkerweb/ui.healthy").unlink()
     if stop is True:
         stop_gunicorn()
     _exit(status)

src/ui/src/Config.py

@@ -39,6 +39,7 @@ class Config:
                 env = self.__db.get_config()
 
             self.__logger.info("Database is ready")
+            Path("/var/tmp/bunkerweb/ui.healthy").write_text("ok")
 
     def __env_to_dict(self, filename: str) -> dict:
         """Converts the content of an env file into a dict