Add service restart

Dockerfile

@@ -1,16 +1,25 @@
 FROM node:14.2.0-alpine3.11
 
-ENV VERSION=1.5
+ENV WBVERSION=1.5 \
+    SCVERSION=0.1.9
 
 RUN mkdir -p /opt/app && \
     apk add --no-cache --virtual .download ca-certificates wget && \
-    wget https://github.com/cracker0dks/whiteboard/archive/v$VERSION.tar.gz && \
-    tar -C /opt/app -xzf v$VERSION.tar.gz && \
-    rm v$VERSION.tar.gz && \
-    cd /opt/app/whiteboard-$VERSION && \
+    wget https://github.com/cracker0dks/whiteboard/archive/v$WBVERSION.tar.gz && \
+    wget https://github.com/aptible/supercronic/releases/download/v$SCVERSION/supercronic-linux-amd64 && \
+    chmod +x supercronic-linux-amd64 && \
+    mv supercronic-linux-amd64 /usr/local/bin/supercronic && \
+    tar -C /opt/app -xzf v$WBVERSION.tar.gz && \
+    rm v$WBVERSION.tar.gz && \
+    cd /opt/app/whiteboard-$WBVERSION && \
     npm ci && \
     apk del .download
 
+ADD crontab /opt/app/whiteboard-$WBVERSION/crontab
+ADD    entrypoint.sh /entrypoint.sh
+
+RUN chmod +x /entrypoint.sh
+
 EXPOSE 8080
 
-ENTRYPOINT ["node", "/opt/app/whiteboard-1.5/server.js", "--mode=production"]
+ENTRYPOINT ["/entrypoint.sh"]

crontab

@@ -0,0 +1,2 @@
+30 * * * * pkill node
+31 * * * * node /opt/app/whiteboard-1.5/server.js --mode=production

entrypoint.sh

@@ -0,0 +1,4 @@
+#! /bin/sh
+
+node /opt/app/whiteboard-1.5/server.js --mode=production &
+supercronic /opt/app/whiteboard-1.5/crontab