upgrade-system: added the script

upgrade-system

@@ -0,0 +1,112 @@
+#!/bin/sh
+set -u
+
+# Variables
+CADDY=/usr/sbin/caddy
+: "${SVDIR:=$HOME/.local/service}"
+APK_UPGRADE="doas apk upgrade --update-cache --available"
+CONTAINER_PRUNE="podman image prune"
+
+# Colours
+if [ -t 1 ] && [ -z "${NO_COLOR:-}" ] ; then
+	BLUE='\033[1;34m'
+	GREEN='\033[1;32m'
+	RED='\033[1;31m'
+	RESET='\033[0m'
+else
+	BLUE='' GREEN='' RED='' RESET=''
+fi
+PREFIX="${BLUE}[upgrade-system]${RESET}"
+
+# Functions
+log() { printf "%b %b\n" "$PREFIX" "$*"; }
+log_ok() { printf "%b %b\n" "$PREFIX" "${GREEN}$*${RESET}"; }
+log_err() { printf "%b %b\n" "$PREFIX" "${RED}$*${RESET}"; }
+print_help() {
+	printf "upgrade-system (v0.1)\n\n"
+	printf "Usage: upgrade-system [-cs] (-y)\n\n"
+	printf "Script to simplify updating the system and/or containers.\n\n"
+	printf "\t-c\tUpdate the containers\n"
+	printf "\t-s\tUpdate the system packages\n"
+	printf "\t-y\tDon't require interaction\n"
+}
+
+# Getopts
+c=0; s=0; y=0
+while getopts "csy" opt ; do
+  case "$opt" in
+    c) c=1;;
+    s) s=1;;
+    y) y=1;;
+    \?) print_help; exit 1;;
+  esac
+done
+shift $((OPTIND-1))
+
+if [ $c -eq 0 ] && [ $s -eq 0 ] ; then
+	print_help
+	exit 1
+fi
+
+# The interactive flag :)
+if [ "$y" -eq 1 ] ; then
+	CONTAINER_PRUNE="$CONTAINER_PRUNE --force"
+else
+	APK_UPGRADE="$APK_UPGRADE --interactive"
+fi
+
+# Making sure we aren't root
+if [ "$(id -u)" -eq 0 ] ; then
+	log_err "Run this script as a user!"
+	exit 1
+fi
+
+# Upgrade system packages
+if [ "$s" -eq 1 ] ; then
+	log "Updating & Upgrading packages..."
+	if $APK_UPGRADE ; then
+		log_ok "Succesfully upgraded packages!"
+	else
+		log_err "Update failed or aborted!"
+		exit 1
+	fi
+
+	# Give caddy the the correct rights after upgrade
+	log "Making sure caddy has the correct rights..."
+	if getcap "$CADDY" | grep -q 'cap_net_bind_service=ep' ; then
+		log_ok "Caddy already has the correct rights."
+	else
+		log "Setcapping caddy..."
+		if doas setcap cap_net_bind_service=+ep "$CADDY" ; then
+			log_ok "Setcapping succesful!"
+		else
+			log_err "Setcapping failed!"
+			exit 1
+		fi
+	fi
+fi
+
+# Upgrade containers
+if [ "$c" -eq 1 ] ; then
+	log "Pulling the newest images..."
+	for image in $(podman image list --format '{{.Repository}}:{{.Tag}}') ; do
+		podman pull "$image"
+	done
+
+	# Restarting containers
+	log "Restarting the pods..."
+	for pod in "$SVDIR"/* ; do
+		[ ! -f "$pod/down" ] && sv restart "$pod"
+	done
+
+	# Pruning old images
+	log "Pruning old images..."
+	$CONTAINER_PRUNE
+fi
+
+# Suggest rebooting system
+if [ "$s" -eq 1 ] ; then
+       log "You should probably reboot your system."
+fi
+
+exit 0