REST Resource: backendBuckets

Resource: BackendBucket

Represents a Cloud Storage Bucket resource.

This Cloud Storage bucket resource is referenced by a URL map of a load balancer. For more information, read Backend Buckets.

JSON representation
{
  "id": string,
  "creationTimestamp": string,
  "name": string,
  "description": string,
  "selfLink": string,
  "bucketName": string,
  "enableCdn": boolean,
  "cdnPolicy": {
    "signedUrlKeyNames": [
      string
    ],
    "signedUrlCacheMaxAgeSec": string,
    "cacheMode": enum,
    "defaultTtl": integer,
    "maxTtl": integer,
    "clientTtl": integer,
    "negativeCaching": boolean,
    "negativeCachingPolicy": [
      {
        "code": integer,
        "ttl": integer
      }
    ],
    "bypassCacheOnRequestHeaders": [
      {
        "headerName": string
      }
    ],
    "serveWhileStale": integer
  },
  "customResponseHeaders": [
    string
  ],
  "kind": string
}
Fields
id

string (fixed64 format)

[Output Only] Unique identifier for the resource; defined by the server.

creationTimestamp

string

[Output Only] Creation timestamp in RFC3339 text format.

name

string

Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression [a-z]([-a-z0-9]*[a-z0-9])? which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.

description

string

An optional textual description of the resource; provided by the client when the resource is created.

bucketName

string

Cloud Storage bucket name.

enableCdn

boolean

If true, enable Cloud CDN for this BackendBucket.

cdnPolicy

object

Cloud CDN configuration for this BackendBucket.

cdnPolicy.signedUrlKeyNames[]

string

[Output Only] Names of the keys for signing request URLs.

cdnPolicy.signedUrlCacheMaxAgeSec

string (int64 format)

Maximum number of seconds the response to a signed URL request will be considered fresh. After this time period, the response will be revalidated before being served. Defaults to 1hr (3600s). When serving responses to signed URL requests, Cloud CDN will internally behave as though all responses from this backend had a "Cache-Control: public, max-age=[TTL]" header, regardless of any existing Cache-Control header. The actual headers served in responses will not be altered.

cdnPolicy.cacheMode

enum

cdnPolicy.defaultTtl

integer

Specifies the default TTL for cached content served by this origin for responses that do not have an existing valid TTL (max-age or s-max-age). Setting a TTL of "0" means "always revalidate". The value of defaultTTL cannot be set to a value greater than that of maxTTL, but can be equal. When the cacheMode is set to FORCE_CACHE_ALL, the defaultTTL will overwrite the TTL set in all responses. The maximum allowed value is 31,622,400s (1 year), noting that infrequently accessed objects may be evicted from the cache before the defined TTL.

cdnPolicy.maxTtl

integer

Specifies the maximum allowed TTL for cached content served by this origin. Cache directives that attempt to set a max-age or s-maxage higher than this, or an Expires header more than maxTTL seconds in the future will be capped at the value of maxTTL, as if it were the value of an s-maxage Cache-Control directive. Headers sent to the client will not be modified. Setting a TTL of "0" means "always revalidate". The maximum allowed value is 31,622,400s (1 year), noting that infrequently accessed objects may be evicted from the cache before the defined TTL.

cdnPolicy.clientTtl

integer

Specifies a separate client (e.g. browser client) TTL, separate from the TTL for Cloud CDN's edge caches. Leaving this empty will use the same cache TTL for both Cloud CDN and the client-facing response. The maximum allowed value is 86400s (1 day).

cdnPolicy.negativeCaching

boolean

Negative caching allows per-status code TTLs to be set, in order to apply fine-grained caching for common errors or redirects. This can reduce the load on your origin and improve end-user experience by reducing response latency. By default, Cloud CDN will apply the following default TTLs to these status codes: HTTP 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m HTTP 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s HTTP 405 (Method Not Found), 421 (Misdirected Request), 501 (Not Implemented): 60s These defaults can be overridden in negativeCachingPolicy

cdnPolicy.negativeCachingPolicy[]

object

Sets a cache TTL for the specified HTTP status code. negativeCaching must be enabled to configure negativeCachingPolicy. Omitting the policy and leaving negativeCaching enabled will use Cloud CDN's default cache TTLs. Note that when specifying an explicit negativeCachingPolicy, you should take care to specify a cache TTL for all response codes that you wish to cache. Cloud CDN will not apply any default negative caching when a policy exists.

cdnPolicy.negativeCachingPolicy[].code

integer

The HTTP status code to define a TTL against. Only HTTP status codes 300, 301, 308, 404, 405, 410, 421, 451 and 501 are can be specified as values, and you cannot specify a status code more than once.

cdnPolicy.negativeCachingPolicy[].ttl

integer

The TTL (in seconds) to cache responses with the corresponding status code for. The maximum allowed value is 1800s (30 minutes), noting that infrequently accessed objects may be evicted from the cache before the defined TTL.

cdnPolicy.bypassCacheOnRequestHeaders[]

object

Bypass the cache when the specified request headers are matched - e.g. Pragma or Authorization headers. Up to 5 headers can be specified. The cache is bypassed for all cdnPolicy.cacheMode settings.

cdnPolicy.bypassCacheOnRequestHeaders[].headerName

string

The header field name to match on when bypassing cache. Values are case-insensitive.

cdnPolicy.serveWhileStale

integer

Serve existing content from the cache (if available) when revalidating content with the origin, or when an error is encountered when refreshing the cache. This setting defines the default "max-stale" duration for any cached responses that do not specify a max-stale directive. Stale responses that exceed the TTL configured here will not be served. The default limit (max-stale) is 86400s (1 day), which will allow stale content to be served up to this limit beyond the max-age (or s-max-age) of a cached response. The maximum allowed value is 604800 (1 week). Set this to zero (0) to disable serve-while-stale.

customResponseHeaders[]

string

Headers that the HTTP/S load balancer should add to proxied responses.

kind

string

Type of the resource.

Methods

addSignedUrlKey

Adds a key for validating requests with signed URLs for this backend bucket.

delete

Deletes the specified BackendBucket resource.

deleteSignedUrlKey

Deletes a key for validating requests with signed URLs for this backend bucket.

get

Returns the specified BackendBucket resource.

getIamPolicy

Gets the access control policy for a resource.

insert

Creates a BackendBucket resource in the specified project using the data included in the request.

list

Retrieves the list of BackendBucket resources available to the specified project.

patch

Updates the specified BackendBucket resource with the data included in the request.

setIamPolicy

Sets the access control policy on the specified resource.

testIamPermissions

Returns permissions that a caller has on the specified resource.

update

Updates the specified BackendBucket resource with the data included in the request.