new: [myc-check-and-launch-backup] new script for checking backup installation

Signed-off-by: Valentin Lab <valentin.lab@kalysto.org>

bin/myc-check-and-launch-backup

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+##
+## Quick and dirty check launching backup
+##
+
+if ! cron_line=$(docker exec -ti myc_cron_1 cat /etc/cron.d/rsync-backup | grep "\* \* \*"); then
+    echo "can't find cron_line in cron container." >&2
+    exit 1
+fi
+
+cron_line=${cron_line%|*}
+cron_line=${cron_line%"2>&1"*}
+
+cmd_line="${cron_line#*root}"
+
+eval "args=($cmd_line)"
+
+## should be last argument
+
+docker_cmd=$(echo ${args[@]: -1})
+
+if ! [[ "$docker_cmd" == "docker run --rm -e "* ]]; then
+   echo "docker command found should start with 'docker run'." >&2
+   echo "Here's command:" >&2
+   echo "  $docker_cmd" >&2
+   exit 1
+fi
+
+eval "docker exec -i myc_cron_1 $docker_cmd"