fix(jenkins): add git fallback and nginx aliases

scripts/jenkins-server-provision.sh

@@ -9,6 +9,28 @@ require_path() {
   fi
 }
 
+normalize_server_aliases() {
+  printf "%s" "${SERVER_ALIASES:-}" | tr ',' ' ' | xargs
+}
+
+validate_server_names() {
+  local alias_name
+  if [[ -z "${SERVER_NAME:-}" ]]; then
+    echo "[server-provision] SERVER_NAME 不能为空。" >&2
+    exit 1
+  fi
+  if [[ ! "${SERVER_NAME}" =~ ^[A-Za-z0-9][A-Za-z0-9.-]*$ ]]; then
+    echo "[server-provision] SERVER_NAME 只能填写单个域名或 IP，不能包含空格、路径或协议: ${SERVER_NAME}" >&2
+    exit 1
+  fi
+  for alias_name in $(normalize_server_aliases); do
+    if [[ ! "${alias_name}" =~ ^[A-Za-z0-9][A-Za-z0-9.-]*$ ]]; then
+      echo "[server-provision] SERVER_ALIASES 只能填写域名或 IP，多个用空格或逗号分隔: ${alias_name}" >&2
+      exit 1
+    fi
+  done
+}
+
 run_cmd() {
   echo "+ $*"
   if [[ "${DRY_RUN}" != "true" ]]; then
@@ -336,10 +358,15 @@ EOF
 
 render_nginx_template() {
   local template="$1"
-  local rendered_brotli
+  local rendered_brotli server_names
   rendered_brotli="$(render_nginx_brotli_directives)"
+  server_names="${SERVER_NAME}"
+  if [[ -n "${SERVER_ALIASES:-}" ]]; then
+    server_names="${server_names} $(normalize_server_aliases)"
+  fi
   sed \
-    -e "s/genarrative.example.com/${SERVER_NAME}/g" \
+    -e "s/server_name genarrative.example.com;/server_name ${server_names};/g" \
+    -e "s|/etc/letsencrypt/live/genarrative.example.com/|/etc/letsencrypt/live/${SERVER_NAME}/|g" \
     -e "/# __GENARRATIVE_BROTLI_DIRECTIVES__/r /dev/stdin" \
     -e "/# __GENARRATIVE_BROTLI_DIRECTIVES__/d" \
     "${template}" <<<"${rendered_brotli}"
@@ -504,6 +531,8 @@ require_path scripts/deploy/maintenance-on.sh
 require_path scripts/deploy/maintenance-off.sh
 require_path scripts/deploy/maintenance-status.sh
 
+validate_server_names
+
 echo "[server-provision] target=${DEPLOY_TARGET}, dry_run=${DRY_RUN}, nginx_config_mode=${NGINX_CONFIG_MODE}, source_commit=$(cat .jenkins-source-commit)"
 
 run_cmd id