feat: add domain and install scripts for apps

gitea/install.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+APP_NAME="gitea"
+APP_DIR="/var/excloud/apps"
+SCRIPT_DIR="/var/excloud/scripts"
+APP_UPSTREAM_PORT="${EXC_APP_UPSTREAM_PORT:-3000}"
+
+mkdir -p "${APP_DIR}"
+mkdir -p "${SCRIPT_DIR}"
+
+DOMAIN="${1}"
+
+if [ -z "${DOMAIN}" ]; then
+  echo "Error: URL argument is required. Example:" >&2
+  echo "install.sh sub.example.com" >&2
+  exit 1
+fi
+
+GITEA_DIR="${APP_DIR}/${APP_NAME}"
+COMPOSE_FILE="${GITEA_DIR}/docker-compose.yml"
+
+apt-get install -y caddy
+mkdir -p "${GITEA_DIR}"
+
+cat > "${COMPOSE_FILE}" <<EOF
+services:
+  gitea:
+    image: gitea/gitea:1.25.5
+    restart: always
+    ports:
+      - "127.0.0.1:${APP_UPSTREAM_PORT}:3000"
+      - "2222:2222"
+    environment:
+      GITEA__server__ROOT_URL: https://${DOMAIN}/
+      GITEA__server__DOMAIN: ${DOMAIN}
+      GITEA__server__SSH_DOMAIN: ${DOMAIN}
+      GITEA__server__SSH_PORT: "2222"
+      GITEA__server__SSH_LISTEN_PORT: "2222"
+    volumes:
+      - gitea-data:/data
+volumes:
+  gitea-data:
+EOF
+
+bash "${SCRIPT_DIR}/domain.sh" "${DOMAIN}"