Updates to user/group determination after recent changes to v2 branch

docker/rootfs/bin/common.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+
+set -e
+
+CYAN='\E[1;36m'
+BLUE='\E[1;34m'
+YELLOW='\E[1;33m'
+RED='\E[1;31m'
+RESET='\E[0m'
+export CYAN BLUE YELLOW RED RESET
+
+PUID=${PUID:-0}
+PGID=${PGID:-0}
+
+if [[ "$PUID" -ne '0' ]] && [ "$PGID" = '0' ]; then
+	# set group id to same as user id,
+	# the user probably forgot to specify the group id and
+	# it would be rediculous to intentionally use the root group
+	# for a non-root user
+	PGID=$PUID
+fi
+
+export PUID PGID
+
+log_info () {
+	echo -e "${BLUE}❯ ${CYAN}$1${RESET}"
+}
+
+log_error () {
+	echo -e "${RED}❯ $1${RESET}"
+}
+
+log_fatal () {
+	echo -e "${RED}--------------------------------------${RESET}"
+	echo -e "${RED}ERROR: $1${RESET}"
+	echo -e "${RED}--------------------------------------${RESET}"
+	/run/s6/basedir/bin/halt
+	exit 1
+}
+
+disable_ipv6 () {
+	if [ "$DISABLE_IPV6" == 'true' ] || [ "$DISABLE_IPV6" == 'on' ] || [ "$DISABLE_IPV6" == '1' ] || [ "$DISABLE_IPV6" == 'yes' ]; then
+		echo '1'
+	else
+		echo '0'
+	fi
+}