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• app_yaml.proto

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google.appengine.v1.app_yaml.proto Maven / Gradle / Ivy

// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

syntax = "proto3";

package google.appengine.v1;

import "google/protobuf/duration.proto";

option csharp_namespace = "Google.Cloud.AppEngine.V1";
option go_package = "cloud.google.com/go/appengine/apiv1/appenginepb;appenginepb";
option java_multiple_files = true;
option java_outer_classname = "AppYamlProto";
option java_package = "com.google.appengine.v1";
option php_namespace = "Google\\Cloud\\AppEngine\\V1";
option ruby_package = "Google::Cloud::AppEngine::V1";

// [Google Cloud Endpoints](https://cloud.google.com/appengine/docs/python/endpoints/)
// configuration for API handlers.
message ApiConfigHandler {
  // Action to take when users access resources that require
  // authentication. Defaults to `redirect`.
  AuthFailAction auth_fail_action = 1;

  // Level of login required to access this resource. Defaults to
  // `optional`.
  LoginRequirement login = 2;

  // Path to the script from the application root directory.
  string script = 3;

  // Security (HTTPS) enforcement for this URL.
  SecurityLevel security_level = 4;

  // URL to serve the endpoint at.
  string url = 5;
}

// Custom static error page to be served when an error occurs.
message ErrorHandler {
  // Error codes.
  enum ErrorCode {
    option allow_alias = true;

    // Not specified. ERROR_CODE_DEFAULT is assumed.
    ERROR_CODE_UNSPECIFIED = 0;

    // All other error types.
    ERROR_CODE_DEFAULT = 0;

    // Application has exceeded a resource quota.
    ERROR_CODE_OVER_QUOTA = 1;

    // Client blocked by the application's Denial of Service protection
    // configuration.
    ERROR_CODE_DOS_API_DENIAL = 2;

    // Deadline reached before the application responds.
    ERROR_CODE_TIMEOUT = 3;
  }

  // Error condition this handler applies to.
  ErrorCode error_code = 1;

  // Static file content to be served for this error.
  string static_file = 2;

  // MIME type of file. Defaults to `text/html`.
  string mime_type = 3;
}

// URL pattern and description of how the URL should be handled. App Engine can
// handle URLs by executing application code or by serving static files
// uploaded with the version, such as images, CSS, or JavaScript.
message UrlMap {
  // Redirect codes.
  enum RedirectHttpResponseCode {
    // Not specified. `302` is assumed.
    REDIRECT_HTTP_RESPONSE_CODE_UNSPECIFIED = 0;

    // `301 Moved Permanently` code.
    REDIRECT_HTTP_RESPONSE_CODE_301 = 1;

    // `302 Moved Temporarily` code.
    REDIRECT_HTTP_RESPONSE_CODE_302 = 2;

    // `303 See Other` code.
    REDIRECT_HTTP_RESPONSE_CODE_303 = 3;

    // `307 Temporary Redirect` code.
    REDIRECT_HTTP_RESPONSE_CODE_307 = 4;
  }

  // URL prefix. Uses regular expression syntax, which means regexp
  // special characters must be escaped, but should not contain groupings.
  // All URLs that begin with this prefix are handled by this handler, using the
  // portion of the URL after the prefix as part of the file path.
  string url_regex = 1;

  // Type of handler for this URL pattern.
  oneof handler_type {
    // Returns the contents of a file, such as an image, as the response.
    StaticFilesHandler static_files = 2;

    // Executes a script to handle the requests that match this URL
    // pattern. Only the `auto` value is supported for Node.js in the
    // App Engine standard environment, for example `"script": "auto"`.
    ScriptHandler script = 3;

    // Uses API Endpoints to handle requests.
    ApiEndpointHandler api_endpoint = 4;
  }

  // Security (HTTPS) enforcement for this URL.
  SecurityLevel security_level = 5;

  // Level of login required to access this resource. Not supported for Node.js
  // in the App Engine standard environment.
  LoginRequirement login = 6;

  // Action to take when users access resources that require
  // authentication. Defaults to `redirect`.
  AuthFailAction auth_fail_action = 7;

  // `30x` code to use when performing redirects for the `secure` field.
  // Defaults to `302`.
  RedirectHttpResponseCode redirect_http_response_code = 8;
}

// Files served directly to the user for a given URL, such as images, CSS
// stylesheets, or JavaScript source files. Static file handlers describe which
// files in the application directory are static files, and which URLs serve
// them.
message StaticFilesHandler {
  // Path to the static files matched by the URL pattern, from the
  // application root directory. The path can refer to text matched in groupings
  // in the URL pattern.
  string path = 1;

  // Regular expression that matches the file paths for all files that should be
  // referenced by this handler.
  string upload_path_regex = 2;

  // HTTP headers to use for all responses from these URLs.
  map http_headers = 3;

  // MIME type used to serve all files served by this handler.
  //
  // Defaults to file-specific MIME types, which are derived from each file's
  // filename extension.
  string mime_type = 4;

  // Time a static file served by this handler should be cached
  // by web proxies and browsers.
  google.protobuf.Duration expiration = 5;

  // Whether this handler should match the request if the file
  // referenced by the handler does not exist.
  bool require_matching_file = 6;

  // Whether files should also be uploaded as code data. By default, files
  // declared in static file handlers are uploaded as static
  // data and are only served to end users; they cannot be read by the
  // application. If enabled, uploads are charged against both your code and
  // static data storage resource quotas.
  bool application_readable = 7;
}

// Executes a script to handle the request that matches the URL pattern.
message ScriptHandler {
  // Path to the script from the application root directory.
  string script_path = 1;
}

// Uses Google Cloud Endpoints to handle requests.
message ApiEndpointHandler {
  // Path to the script from the application root directory.
  string script_path = 1;
}

// Health checking configuration for VM instances. Unhealthy instances
// are killed and replaced with new instances. Only applicable for
// instances in App Engine flexible environment.
message HealthCheck {
  // Whether to explicitly disable health checks for this instance.
  bool disable_health_check = 1;

  // Host header to send when performing an HTTP health check.
  // Example: "myapp.appspot.com"
  string host = 2;

  // Number of consecutive successful health checks required before receiving
  // traffic.
  uint32 healthy_threshold = 3;

  // Number of consecutive failed health checks required before removing
  // traffic.
  uint32 unhealthy_threshold = 4;

  // Number of consecutive failed health checks required before an instance is
  // restarted.
  uint32 restart_threshold = 5;

  // Interval between health checks.
  google.protobuf.Duration check_interval = 6;

  // Time before the health check is considered failed.
  google.protobuf.Duration timeout = 7;
}

// Readiness checking configuration for VM instances. Unhealthy instances
// are removed from traffic rotation.
message ReadinessCheck {
  // The request path.
  string path = 1;

  // Host header to send when performing a HTTP Readiness check.
  // Example: "myapp.appspot.com"
  string host = 2;

  // Number of consecutive failed checks required before removing
  // traffic.
  uint32 failure_threshold = 3;

  // Number of consecutive successful checks required before receiving
  // traffic.
  uint32 success_threshold = 4;

  // Interval between health checks.
  google.protobuf.Duration check_interval = 5;

  // Time before the check is considered failed.
  google.protobuf.Duration timeout = 6;

  // A maximum time limit on application initialization, measured from moment
  // the application successfully replies to a healthcheck until it is ready to
  // serve traffic.
  google.protobuf.Duration app_start_timeout = 7;
}

// Health checking configuration for VM instances. Unhealthy instances
// are killed and replaced with new instances.
message LivenessCheck {
  // The request path.
  string path = 1;

  // Host header to send when performing a HTTP Liveness check.
  // Example: "myapp.appspot.com"
  string host = 2;

  // Number of consecutive failed checks required before considering the
  // VM unhealthy.
  uint32 failure_threshold = 3;

  // Number of consecutive successful checks required before considering
  // the VM healthy.
  uint32 success_threshold = 4;

  // Interval between health checks.
  google.protobuf.Duration check_interval = 5;

  // Time before the check is considered failed.
  google.protobuf.Duration timeout = 6;

  // The initial delay before starting to execute the checks.
  google.protobuf.Duration initial_delay = 7;
}

// Third-party Python runtime library that is required by the application.
message Library {
  // Name of the library. Example: "django".
  string name = 1;

  // Version of the library to select, or "latest".
  string version = 2;
}

// Actions to take when the user is not logged in.
enum AuthFailAction {
  // Not specified. `AUTH_FAIL_ACTION_REDIRECT` is assumed.
  AUTH_FAIL_ACTION_UNSPECIFIED = 0;

  // Redirects user to "accounts.google.com". The user is redirected back to the
  // application URL after signing in or creating an account.
  AUTH_FAIL_ACTION_REDIRECT = 1;

  // Rejects request with a `401` HTTP status code and an error
  // message.
  AUTH_FAIL_ACTION_UNAUTHORIZED = 2;
}

// Methods to restrict access to a URL based on login status.
enum LoginRequirement {
  // Not specified. `LOGIN_OPTIONAL` is assumed.
  LOGIN_UNSPECIFIED = 0;

  // Does not require that the user is signed in.
  LOGIN_OPTIONAL = 1;

  // If the user is not signed in, the `auth_fail_action` is taken.
  // In addition, if the user is not an administrator for the
  // application, they are given an error message regardless of
  // `auth_fail_action`. If the user is an administrator, the handler
  // proceeds.
  LOGIN_ADMIN = 2;

  // If the user has signed in, the handler proceeds normally. Otherwise, the
  // auth_fail_action is taken.
  LOGIN_REQUIRED = 3;
}

// Methods to enforce security (HTTPS) on a URL.
enum SecurityLevel {
  option allow_alias = true;

  // Not specified.
  SECURE_UNSPECIFIED = 0;

  // Both HTTP and HTTPS requests with URLs that match the handler succeed
  // without redirects. The application can examine the request to determine
  // which protocol was used, and respond accordingly.
  SECURE_DEFAULT = 0;

  // Requests for a URL that match this handler that use HTTPS are automatically
  // redirected to the HTTP equivalent URL.
  SECURE_NEVER = 1;

  // Both HTTP and HTTPS requests with URLs that match the handler succeed
  // without redirects. The application can examine the request to determine
  // which protocol was used and respond accordingly.
  SECURE_OPTIONAL = 2;

  // Requests for a URL that match this handler that do not use HTTPS are
  // automatically redirected to the HTTPS URL with the same path. Query
  // parameters are reserved for the redirect.
  SECURE_ALWAYS = 3;
}