cronjob for automatic pulling docker image from docker.io every day.

deploy/crontab-update-docker-image.sh

+#!/bin/bash
+
+#crontab example setup
+#0 5 * * * /root/update_biukopweb_docker.sh >> /root/update_docker.log
+
+DATE=$(date)
+IMAGE="lawipac/biukopweb"
+echo "$DATE" Puling $IMAGE ...
+out=$(docker pull $IMAGE)
+echo "$out"
+
+#there is real update from docker pull
+if [[ $out != *"up to date"* ]]; then
+        echo NEW image pulled on "$DATE"
+        docker stop biukopweb-container
+        docker rm   biukopweb-container
+        docker run --name=biukopweb-container --restart=unless-stopped -p 8080:8080 -d $IMAGE
+        docker image prune -f
+else
+        echo "$DATE" - docker pull has no new image
+fi