feat(podman): add method to generate podman based docker image package

resources/com/cadoles/podman/post-install.sh.gotmpl

@@ -0,0 +1,79 @@
+#!/bin/sh
+
+# Adapted from https://nfpm.goreleaser.com/tips/
+
+use_systemctl="True"
+systemd_version=0
+if ! command -V systemctl >/dev/null 2>&1; then
+  use_systemctl="False"
+else
+  systemd_version=$( systemctl --version | head -1 | sed 's/systemd //g' | cut -d' ' -f1 )
+fi
+
+SERVICE_NAME="cadoles-pod-{{ .Env.IMAGE_NAME }}"
+
+cleanup() {
+  if [ "${use_systemctl}" = "False" ]; then
+    rm -f /usr/lib/systemd/system/$SERVICE_NAME.service
+  else
+    rm -f /etc/chkconfig/$SERVICE_NAME
+    rm -f /etc/init.d/$SERVICE_NAME
+  fi
+}
+
+cleanInstall() {
+  if [ "${use_systemctl}" = "False" ]; then
+    if command -V chkconfig >/dev/null 2>&1; then
+      chkconfig --add $SERVICE_NAME
+    fi
+
+    service $SERVICE_NAME restart ||:
+  else
+    if [ "${systemd_version}" -lt 231 ]; then
+      printf "\033[31m systemd version %s is less then 231, fixing the service file \033[0m\n" "${systemd_version}"
+      sed -i "s/=+/=/g" /usr/lib/systemd/system/$SERVICE_NAME.service
+    fi
+    systemctl daemon-reload ||:
+    systemctl unmask $SERVICE_NAME ||:
+    systemctl preset $SERVICE_NAME ||:
+    systemctl enable $SERVICE_NAME ||:
+    systemctl restart $SERVICE_NAME ||:
+  fi
+}
+
+upgrade() {
+  if [ "${use_systemctl}" = "False" ]; then
+    service $SERVICE_NAME restart ||:
+  else
+    if [ "${systemd_version}" -lt 231 ]; then
+      printf "\033[31m systemd version %s is less then 231, fixing the service file \033[0m\n" "${systemd_version}"
+      sed -i "s/=+/=/g" /usr/lib/systemd/system/$SERVICE_NAME.service
+    fi
+    systemctl daemon-reload ||:
+    systemctl restart $SERVICE_NAME ||:
+  fi
+
+  echo 'Cleaning up unused images...'
+  podman image prune -f --filter "reference={{ .Env.IMAGE_NAME }}"
+}
+
+action="$1"
+if  [ "$1" = "configure" ] && [ -z "$2" ]; then
+  action="install"
+elif [ "$1" = "configure" ] && [ -n "$2" ]; then
+  action="upgrade"
+fi
+
+case "$action" in
+  "1" | "install")
+    cleanInstall
+    ;;
+  "2" | "upgrade")
+    upgrade
+    ;;
+  *)
+    cleanInstall
+    ;;
+esac
+
+cleanup