updates...

homelab/applications/app-template-generator/create-user.sh

@@ -0,0 +1,80 @@
+#!/bin/zsh
+while [[ "$#" -gt 0 ]]
+do 
+  case $1 in
+    --app_name) app_name="$2"
+    shift;;
+    --id) desired_id="$2"
+    shift;;
+    *) echo "Unknown parameter passed: $1"
+    exit 1;;
+  esac
+  shift
+done
+
+# Validate desired_id is a number
+if ! [[ "$desired_id" =~ ^[0-9]+$ ]]; then
+  echo "Error: Invalid UID/GID. Please enter a numeric value."
+  exit 1
+fi
+
+user_name="${app_name}-user"
+group_name="${app_name}-group"
+
+echo "--- Checking/Creating User and Group for ${app_name} ---"
+
+# --- Handle Group ---
+echo "Checking group: ${group_name}"
+existing_gid=$(getent group "${group_name}" | cut -d: -f3)
+
+if [[ -n "$existing_gid" ]]; then
+  if [[ "$existing_gid" -eq "$desired_id" ]]; then
+    echo "Group '${group_name}' already exists with the correct GID (${desired_id})."
+  else
+    echo "Group '${group_name}' exists with GID ${existing_gid}, but desired GID is ${desired_id}."
+    echo "Attempting to modify group GID..."
+    if sudo groupmod -g "$desired_id" "${group_name}"; then
+      echo "Successfully adjusted group '${group_name}' to GID ${desired_id}."
+    else
+      echo "Failed to adjust group '${group_name}' GID. Please check permissions or try manually."
+      exit 1
+    fi
+  fi
+else
+  echo "Group '${group_name}' does not exist. Creating..."
+  if sudo groupadd -g "$desired_id" "${group_name}"; then
+    echo "Successfully created group '${group_name}' with GID ${desired_id}."
+  else
+    echo "Failed to create group '${group_name}'. Please check permissions or try manually."
+    exit 1
+  fi
+fi
+
+# --- Handle User ---
+echo "Checking user: ${user_name}"
+existing_uid=$(getent passwd "${user_name}" | cut -d: -f3)
+
+if [[ -n "$existing_uid" ]]; then
+  if [[ "$existing_uid" -eq "$desired_id" ]]; then
+    echo "User '${user_name}' already exists with the correct UID (${desired_id})."
+  else
+    echo "User '${user_name}' exists with UID ${existing_uid}, but desired UID is ${desired_id}."
+    echo "Attempting to modify user UID..."
+    if sudo usermod -u "$desired_id" -g "$desired_id" "${user_name}"; then
+      echo "Successfully adjusted user '${user_name}' to UID ${desired_id} and primary GID ${desired_id}."
+    else
+      echo "Failed to adjust user '${user_name}' UID/GID. Please check permissions or try manually."
+      exit 1
+    fi
+  fi
+else
+  echo "User '${user_name}' does not exist. Creating..."
+  if sudo useradd -u "$desired_id" -g "$desired_id" -s /sbin/nologin -c "Application User for ${app_name}" "${user_name}"; then
+    echo "Successfully created user '${user_name}' with UID ${desired_id} and primary GID ${desired_id}."
+  else
+    echo "Failed to create user '${user_name}'. Please check permissions or try manually."
+    exit 1
+  fi
+fi
+
+echo "--- Operation complete for ${app_name} ---"