add healthcheck

Dockerfile.ubuntu-1804

@@ -96,9 +96,10 @@ RUN echo "**** Get LinuxGSM Modules ****" \
 
 # Add LinuxGSM cronjobs
 RUN echo "**** Create Cronjobs ****"
-RUN (crontab -l 2>/dev/null; echo "*/1 * * * * /linuxgsm/*server monitor > /dev/null 2>&1") | crontab -
 RUN (crontab -l 2>/dev/null; echo "*/30 * * * * /linuxgsm/*server update > /dev/null 2>&1") | crontab -
 
+HEALTHCHECK --interval=1m --timeout=1m --start-period=15s --retries=1 CMD [ "/linuxgsm/*server monitor" ]
+
 RUN rm -f /linuxgsm/entrypoint.sh
 COPY entrypoint.sh /linuxgsm/entrypoint.sh
 RUN date > /time.txt

Dockerfile.ubuntu-2004

@@ -95,10 +95,11 @@ RUN echo "**** Get LinuxGSM Modules ****" \
   && rm -rf /linuxgsm/LinuxGSM
 
 # Add LinuxGSM cronjobs
-RUN echo "**** Create Cronjobs ****"
-RUN (crontab -l 2>/dev/null; echo "*/1 * * * * /linuxgsm/*server monitor > /dev/null 2>&1") | crontab -
+RUN echo "**** Create Cronjob ****"
 RUN (crontab -l 2>/dev/null; echo "*/30 * * * * /linuxgsm/*server update > /dev/null 2>&1") | crontab -
 
+HEALTHCHECK --interval=1m --timeout=1m --start-period=15s --retries=1 CMD [ "/linuxgsm/*server monitor" ]
+
 RUN rm -f /linuxgsm/entrypoint.sh
 COPY entrypoint.sh /linuxgsm/entrypoint.sh
 RUN date > /time.txt

Dockerfile.ubuntu-2204

@@ -95,10 +95,11 @@ RUN echo "**** Get LinuxGSM Modules ****" \
   && rm -rf /linuxgsm/LinuxGSM
 
 # Add LinuxGSM cronjobs
-RUN echo "**** Create Cronjobs ****"
-RUN (crontab -l 2>/dev/null; echo "*/1 * * * * /linuxgsm/*server monitor > /dev/null 2>&1") | crontab -
+RUN echo "**** Create Cronjob ****"
 RUN (crontab -l 2>/dev/null; echo "*/30 * * * * /linuxgsm/*server update > /dev/null 2>&1") | crontab -
 
+HEALTHCHECK --interval=1m --timeout=1m --start-period=15s --retries=1 CMD [ "/linuxgsm/*server monitor" ]
+
 RUN rm -f /linuxgsm/entrypoint.sh
 COPY entrypoint.sh /linuxgsm/entrypoint.sh
 RUN date > /time.txt