add snap app refresh

update-lxc-single-container.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+BRed='\033[1;31m'   # Red
+BGreen='\033[1;32m' # Green
+Color_Off='\033[0m' # Text Reset
+
+function stop_container() {
+    lxc stop ${1}
+    echo -e $(date) "- ${BGreen}Container ${1} stopped${Color_Off}"
+}
+
+echo $(date) "- Start updating $1 LXC container..."
+status=$(lxc info microk8s | grep Status | cut -d' ' -f 2)
+
+echo $(date) "- Updating $1 container..."
+if [ $status == "STOPPED" ]; then
+    echo -e $(date) "- ${BGreen}Start container $1${Color_Off}"
+    lxc start $1
+    sleep 5
+else
+    echo -e $(date) "- ${BGreen}Container $1 is already started${Color_Off}"
+fi
+lxc exec $1 -- sh -c "apt update"
+sleep 2
+lxc exec $1 -- sh -c "apt upgrade -y"
+sleep 2
+lxc exec $1 -- sh -c "apt autoremove"
+sleep 2
+echo -e $(date) "- Refresh snap packages"
+lxc exec $1 -- bash -c "if [[ \$(which snap > /dev/null; echo \$?) == 0 ]]; then snap refresh ; fi"
+
+if [ $status == "STOPPED" ]; then
+    echo $(date) "- Stop container $1"
+    stop_container $1 &
+    pids[$1]=$!
+fi
+sleep 2
+
+for pid in ${pids[@]}; do
+    wait $pid
+done
+echo $(date) "- Updating LXC container ended"