google.cloud.gcp_compute_backend_service – Creates a GCP BackendService

Note

This plugin is part of the google.cloud collection.

To install it use: ansible-galaxy collection install google.cloud.

To use it in a playbook, specify: google.cloud.gcp_compute_backend_service.

Synopsis

  • A Backend Service defines a group of virtual machines that will serve traffic for load balancing. This resource is a global backend service, appropriate for external load balancing or self-managed internal load balancing.

  • For managed internal load balancing, use a regional backend service instead.

  • Currently self-managed internal load balancing is only available in beta.

Requirements

The below requirements are needed on the host that executes this module.

  • python >= 2.6

  • requests >= 2.18.4

  • google-auth >= 1.3.0

Parameters

Parameter Choices/Defaults Comments
affinity_cookie_ttl_sec
integer
Lifetime of cookies in seconds if session_affinity is GENERATED_COOKIE. If set to 0, the cookie is non-persistent and lasts only until the end of the browser session (or equivalent). The maximum allowed value for TTL is one day.
When the load balancing scheme is INTERNAL, this field is not used.
auth_kind
string / required
    Choices:
  • application
  • machineaccount
  • serviceaccount
The type of credential used.
backends
list / elements=dictionary
The set of backends that serve this BackendService.
balancing_mode
string
Default:
"UTILIZATION"
Specifies the balancing mode for this backend.
For global HTTP(S) or TCP/SSL load balancing, the default is UTILIZATION. Valid values are UTILIZATION, RATE (for HTTP(S)) and CONNECTION (for TCP/SSL).
Some valid choices include: "UTILIZATION", "RATE", "CONNECTION"
capacity_scaler
string
Default:
"1.0"
A multiplier applied to the group's maximum servicing capacity (based on UTILIZATION, RATE or CONNECTION).
Default value is 1, which means the group will serve up to 100% of its configured capacity (depending on balancingMode). A setting of 0 means the group is completely drained, offering 0% of its available Capacity. Valid range is [0.0,1.0].
description
string
An optional description of this resource.
Provide this property when you create the resource.
group
string / required
The fully-qualified URL of an Instance Group or Network Endpoint Group resource. In case of instance group this defines the list of instances that serve traffic. Member virtual machine instances from each instance group must live in the same zone as the instance group itself. No two backends in a backend service are allowed to use same Instance Group resource.
For Network Endpoint Groups this defines list of endpoints. All endpoints of Network Endpoint Group must be hosted on instances located in the same zone as the Network Endpoint Group.
Backend services cannot mix Instance Group and Network Endpoint Group backends.
Note that you must specify an Instance Group or Network Endpoint Group resource using the fully-qualified URL, rather than a partial URL.
max_connections
integer
The max number of simultaneous connections for the group. Can be used with either CONNECTION or UTILIZATION balancing modes.
For CONNECTION mode, either maxConnections or one of maxConnectionsPerInstance or maxConnectionsPerEndpoint, as appropriate for group type, must be set.
max_connections_per_endpoint
integer
The max number of simultaneous connections that a single backend network endpoint can handle. This is used to calculate the capacity of the group. Can be used in either CONNECTION or UTILIZATION balancing modes.
For CONNECTION mode, either maxConnections or maxConnectionsPerEndpoint must be set.
max_connections_per_instance
integer
The max number of simultaneous connections that a single backend instance can handle. This is used to calculate the capacity of the group. Can be used in either CONNECTION or UTILIZATION balancing modes.
For CONNECTION mode, either maxConnections or maxConnectionsPerInstance must be set.
max_rate
integer
The max requests per second (RPS) of the group.
Can be used with either RATE or UTILIZATION balancing modes, but required if RATE mode. For RATE mode, either maxRate or one of maxRatePerInstance or maxRatePerEndpoint, as appropriate for group type, must be set.
max_rate_per_endpoint
string
The max requests per second (RPS) that a single backend network endpoint can handle. This is used to calculate the capacity of the group. Can be used in either balancing mode. For RATE mode, either maxRate or maxRatePerEndpoint must be set.
max_rate_per_instance
string
The max requests per second (RPS) that a single backend instance can handle. This is used to calculate the capacity of the group. Can be used in either balancing mode. For RATE mode, either maxRate or maxRatePerInstance must be set.
max_utilization
string
Default:
"0.8"
Used when balancingMode is UTILIZATION. This ratio defines the CPU utilization target for the group. The default is 0.8. Valid range is [0.0, 1.0].
cdn_policy
dictionary
Cloud CDN configuration for this BackendService.
cache_key_policy
dictionary
The CacheKeyPolicy for this CdnPolicy.
include_host
boolean
    Choices:
  • no
  • yes
If true requests to different hosts will be cached separately.
include_protocol
boolean
    Choices:
  • no
  • yes
If true, http and https requests will be cached separately.
include_query_string
boolean
    Choices:
  • no
  • yes
If true, include query string parameters in the cache key according to query_string_whitelist and query_string_blacklist. If neither is set, the entire query string will be included.
If false, the query string will be excluded from the cache key entirely.
query_string_blacklist
list / elements=string
Names of query string parameters to exclude in cache keys.
All other parameters will be included. Either specify query_string_whitelist or query_string_blacklist, not both.
'&' and '=' will be percent encoded and not treated as delimiters.
query_string_whitelist
list / elements=string
Names of query string parameters to include in cache keys.
All other parameters will be excluded. Either specify query_string_whitelist or query_string_blacklist, not both.
'&' and '=' will be percent encoded and not treated as delimiters.
signed_url_cache_max_age_sec
integer
Default:
"3600"
Maximum number of seconds the response to a signed URL request will be considered fresh, defaults to 1hr (3600s). After this time period, the response will be revalidated before being served.
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.
circuit_breakers
dictionary
Settings controlling the volume of connections to a backend service. This field is applicable only when the load_balancing_scheme is set to INTERNAL_SELF_MANAGED.
max_connections
integer
Default:
"1024"
The maximum number of connections to the backend cluster.
Defaults to 1024.
max_pending_requests
integer
Default:
"1024"
The maximum number of pending requests to the backend cluster.
Defaults to 1024.
max_requests
integer
Default:
"1024"
The maximum number of parallel requests to the backend cluster.
Defaults to 1024.
max_requests_per_connection
integer
Maximum requests for a single backend connection. This parameter is respected by both the HTTP/1.1 and HTTP/2 implementations. If not specified, there is no limit. Setting this parameter to 1 will effectively disable keep alive.
max_retries
integer
Default:
"3"
The maximum number of parallel retries to the backend cluster.
Defaults to 3.
connection_draining
dictionary
Settings for connection draining .
draining_timeout_sec
integer
Default:
"300"
Time for which instance will be drained (not accept new connections, but still work to finish started).
consistent_hash
dictionary
Consistent Hash-based load balancing can be used to provide soft session affinity based on HTTP headers, cookies or other properties. This load balancing policy is applicable only for HTTP connections. The affinity to a particular destination host will be lost when one or more hosts are added/removed from the destination service. This field specifies parameters that control consistent hashing. This field only applies if the load_balancing_scheme is set to INTERNAL_SELF_MANAGED. This field is only applicable when locality_lb_policy is set to MAGLEV or RING_HASH.
http_cookie
dictionary
Hash is based on HTTP Cookie. This field describes a HTTP cookie that will be used as the hash key for the consistent hash load balancer. If the cookie is not present, it will be generated.
This field is applicable if the sessionAffinity is set to HTTP_COOKIE.
name
string
Name of the cookie.
path
string
Path to set for the cookie.
ttl
dictionary
Lifetime of the cookie.
nanos
integer
Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 seconds field and a positive nanos field. Must be from 0 to 999,999,999 inclusive.
seconds
integer / required
Span of time at a resolution of a second.
Must be from 0 to 315,576,000,000 inclusive.
http_header_name
string
The hash based on the value of the specified header field.
This field is applicable if the sessionAffinity is set to HEADER_FIELD.
minimum_ring_size
integer
Default:
"1024"
The minimum number of virtual nodes to use for the hash ring.
Larger ring sizes result in more granular load distributions. If the number of hosts in the load balancing pool is larger than the ring size, each host will be assigned a single virtual node.
Defaults to 1024.
custom_request_headers
list / elements=string
Headers that the HTTP/S load balancer should add to proxied requests.
description
string
An optional description of this resource.
enable_cdn
boolean
    Choices:
  • no
  • yes
If true, enable Cloud CDN for this BackendService.
env_type
string
Specifies which Ansible environment you're running this module within.
This should not be set unless you know what you're doing.
This only alters the User Agent string for any API requests.
health_checks
list / elements=string
The set of URLs to the HttpHealthCheck or HttpsHealthCheck resource for health checking this BackendService. Currently at most one health check can be specified.
A health check must be specified unless the backend service uses an internet or serverless NEG as a backend.
For internal load balancing, a URL to a HealthCheck resource must be specified instead.
iap
dictionary
Settings for enabling Cloud Identity Aware Proxy.
enabled
boolean
    Choices:
  • no
  • yes
Enables IAP.
oauth2_client_id
string / required
OAuth2 Client ID for IAP .
oauth2_client_secret
string / required
OAuth2 Client Secret for IAP .
load_balancing_scheme
string
Default:
"EXTERNAL"
Indicates whether the backend service will be used with internal or external load balancing. A backend service created for one type of load balancing cannot be used with the other.
Some valid choices include: "EXTERNAL", "INTERNAL_SELF_MANAGED"
locality_lb_policy
string
The load balancing algorithm used within the scope of the locality.
The possible values are - ROUND_ROBIN - This is a simple policy in which each healthy backend is selected in round robin order.
LEAST_REQUEST - An O(1) algorithm which selects two random healthy hosts and picks the host which has fewer active requests.
RING_HASH - The ring/modulo hash load balancer implements consistent hashing to backends. The algorithm has the property that the addition/removal of a host from a set of N hosts only affects 1/N of the requests.
RANDOM - The load balancer selects a random healthy host.
ORIGINAL_DESTINATION - Backend host is selected based on the client connection metadata, i.e., connections are opened to the same address as the destination address of the incoming connection before the connection was redirected to the load balancer.
MAGLEV - used as a drop in replacement for the ring hash load balancer.
Maglev is not as stable as ring hash but has faster table lookup build times and host selection times. For more information about Maglev, refer to https://ai.google/research/pubs/pub44824 This field is applicable only when the load_balancing_scheme is set to INTERNAL_SELF_MANAGED.
Some valid choices include: "ROUND_ROBIN", "LEAST_REQUEST", "RING_HASH", "RANDOM", "ORIGINAL_DESTINATION", "MAGLEV"
log_config
dictionary
This field denotes the logging options for the load balancer traffic served by this backend service.
If logging is enabled, logs will be exported to Stackdriver.
enable
boolean
    Choices:
  • no
  • yes
Whether to enable logging for the load balancer traffic served by this backend service.
sample_rate
string
This field can only be specified if logging is enabled for this backend service. The value of the field must be in [0, 1]. This configures the sampling rate of requests to the load balancer where 1.0 means all logged requests are reported and 0.0 means no logged requests are reported.
The default value is 1.0.
name
string / required
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.
outlier_detection
dictionary
Settings controlling eviction of unhealthy hosts from the load balancing pool.
This field is applicable only when the load_balancing_scheme is set to INTERNAL_SELF_MANAGED.
base_ejection_time
dictionary
The base time that a host is ejected for. The real time is equal to the base time multiplied by the number of times the host has been ejected. Defaults to 30000ms or 30s.
nanos
integer
Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
seconds
integer / required
Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive.
consecutive_errors
integer
Default:
"5"
Number of errors before a host is ejected from the connection pool. When the backend host is accessed over HTTP, a 5xx return code qualifies as an error.
Defaults to 5.
consecutive_gateway_failure
integer
Default:
"5"
The number of consecutive gateway failures (502, 503, 504 status or connection errors that are mapped to one of those status codes) before a consecutive gateway failure ejection occurs. Defaults to 5.
enforcing_consecutive_errors
integer
Default:
"100"
The percentage chance that a host will be actually ejected when an outlier status is detected through consecutive 5xx. This setting can be used to disable ejection or to ramp it up slowly. Defaults to 100.
enforcing_consecutive_gateway_failure
integer
The percentage chance that a host will be actually ejected when an outlier status is detected through consecutive gateway failures. This setting can be used to disable ejection or to ramp it up slowly. Defaults to 0.
enforcing_success_rate
integer
Default:
"100"
The percentage chance that a host will be actually ejected when an outlier status is detected through success rate statistics. This setting can be used to disable ejection or to ramp it up slowly. Defaults to 100.
interval
dictionary
Time interval between ejection sweep analysis. This can result in both new ejections as well as hosts being returned to service. Defaults to 10 seconds.
nanos
integer
Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
seconds
integer / required
Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive.
max_ejection_percent
integer
Default:
"10"
Maximum percentage of hosts in the load balancing pool for the backend service that can be ejected. Defaults to 10%.
success_rate_minimum_hosts
integer
Default:
"5"
The number of hosts in a cluster that must have enough request volume to detect success rate outliers. If the number of hosts is less than this setting, outlier detection via success rate statistics is not performed for any host in the cluster. Defaults to 5.
success_rate_request_volume
integer
Default:
"100"
The minimum number of total requests that must be collected in one interval (as defined by the interval duration above) to include this host in success rate based outlier detection. If the volume is lower than this setting, outlier detection via success rate statistics is not performed for that host. Defaults to 100.
success_rate_stdev_factor
integer
Default:
"1900"
This factor is used to determine the ejection threshold for success rate outlier ejection. The ejection threshold is the difference between the mean success rate, and the product of this factor and the standard deviation of the mean success rate: mean - (stdev * success_rate_stdev_factor). This factor is divided by a thousand to get a double. That is, if the desired factor is 1.9, the runtime value should be 1900. Defaults to 1900.
port_name
string
Name of backend port. The same name should appear in the instance groups referenced by this service. Required when the load balancing scheme is EXTERNAL.
project
string
The Google Cloud Platform project to use.
protocol
string
The protocol this BackendService uses to communicate with backends.
The default is HTTP. **NOTE**: HTTP2 is only valid for beta HTTP/2 load balancer types and may result in errors if used with the GA API.
Some valid choices include: "HTTP", "HTTPS", "HTTP2", "TCP", "SSL", "GRPC"
scopes
list / elements=string
Array of scopes to be used
security_policy
string
The security policy associated with this backend service.
service_account_contents
jsonarg
The contents of a Service Account JSON file, either in a dictionary or as a JSON string that represents it.
service_account_email
string
An optional service account email address if machineaccount is selected and the user does not wish to use the default email.
service_account_file
path
The path of a Service Account JSON file if serviceaccount is selected as type.
session_affinity
string
Type of session affinity to use. The default is NONE. Session affinity is not applicable if the protocol is UDP.
Some valid choices include: "NONE", "CLIENT_IP", "CLIENT_IP_PORT_PROTO", "CLIENT_IP_PROTO", "GENERATED_COOKIE", "HEADER_FIELD", "HTTP_COOKIE"
state
string
    Choices:
  • present ←
  • absent
Whether the given object should exist in GCP
timeout_sec
integer
How many seconds to wait for the backend before considering it a failed request. Default is 30 seconds. Valid range is [1, 86400].

aliases: timeout_seconds

Notes

Note

  • API Reference: https://cloud.google.com/compute/docs/reference/v1/backendServices

  • Official Documentation: https://cloud.google.com/compute/docs/load-balancing/http/backend-service

  • for authentication, you can set service_account_file using the gcp_service_account_file env variable.

  • for authentication, you can set service_account_contents using the GCP_SERVICE_ACCOUNT_CONTENTS env variable.

  • For authentication, you can set service_account_email using the GCP_SERVICE_ACCOUNT_EMAIL env variable.

  • For authentication, you can set auth_kind using the GCP_AUTH_KIND env variable.

  • For authentication, you can set scopes using the GCP_SCOPES env variable.

  • Environment variables values will only be used if the playbook values are not set.

  • The service_account_email and service_account_file options are mutually exclusive.

Examples

- name: create a instance group
  google.cloud.gcp_compute_instance_group:
    name: instancegroup-backendservice
    zone: us-central1-a
    project: "{{ gcp_project }}"
    auth_kind: "{{ gcp_cred_kind }}"
    service_account_file: "{{ gcp_cred_file }}"
    state: present
  register: instancegroup

- name: create a HTTP health check
  google.cloud.gcp_compute_http_health_check:
    name: httphealthcheck-backendservice
    healthy_threshold: 10
    port: 8080
    timeout_sec: 2
    unhealthy_threshold: 5
    project: "{{ gcp_project }}"
    auth_kind: "{{ gcp_cred_kind }}"
    service_account_file: "{{ gcp_cred_file }}"
    state: present
  register: healthcheck

- name: create a backend service
  google.cloud.gcp_compute_backend_service:
    name: test_object
    backends:
    - group: "{{ instancegroup.selfLink }}"
    health_checks:
    - "{{ healthcheck.selfLink }}"
    enable_cdn: 'true'
    project: test_project
    auth_kind: serviceaccount
    service_account_file: "/tmp/auth.pem"
    state: present

Return Values

Common return values are documented here, the following are the fields unique to this module:

Key Returned Description
affinityCookieTtlSec
integer
success
Lifetime of cookies in seconds if session_affinity is GENERATED_COOKIE. If set to 0, the cookie is non-persistent and lasts only until the end of the browser session (or equivalent). The maximum allowed value for TTL is one day.
When the load balancing scheme is INTERNAL, this field is not used.

backends
complex
success
The set of backends that serve this BackendService.

 
balancingMode
string
success
Specifies the balancing mode for this backend.
For global HTTP(S) or TCP/SSL load balancing, the default is UTILIZATION. Valid values are UTILIZATION, RATE (for HTTP(S)) and CONNECTION (for TCP/SSL).

 
capacityScaler
string
success
A multiplier applied to the group's maximum servicing capacity (based on UTILIZATION, RATE or CONNECTION).
Default value is 1, which means the group will serve up to 100% of its configured capacity (depending on balancingMode). A setting of 0 means the group is completely drained, offering 0% of its available Capacity. Valid range is [0.0,1.0].

 
description
string
success
An optional description of this resource.
Provide this property when you create the resource.

 
group
string
success
The fully-qualified URL of an Instance Group or Network Endpoint Group resource. In case of instance group this defines the list of instances that serve traffic. Member virtual machine instances from each instance group must live in the same zone as the instance group itself. No two backends in a backend service are allowed to use same Instance Group resource.
For Network Endpoint Groups this defines list of endpoints. All endpoints of Network Endpoint Group must be hosted on instances located in the same zone as the Network Endpoint Group.
Backend services cannot mix Instance Group and Network Endpoint Group backends.
Note that you must specify an Instance Group or Network Endpoint Group resource using the fully-qualified URL, rather than a partial URL.

 
maxConnections
integer
success
The max number of simultaneous connections for the group. Can be used with either CONNECTION or UTILIZATION balancing modes.
For CONNECTION mode, either maxConnections or one of maxConnectionsPerInstance or maxConnectionsPerEndpoint, as appropriate for group type, must be set.

 
maxConnectionsPerEndpoint
integer
success
The max number of simultaneous connections that a single backend network endpoint can handle. This is used to calculate the capacity of the group. Can be used in either CONNECTION or UTILIZATION balancing modes.
For CONNECTION mode, either maxConnections or maxConnectionsPerEndpoint must be set.

 
maxConnectionsPerInstance
integer
success
The max number of simultaneous connections that a single backend instance can handle. This is used to calculate the capacity of the group. Can be used in either CONNECTION or UTILIZATION balancing modes.
For CONNECTION mode, either maxConnections or maxConnectionsPerInstance must be set.

 
maxRate
integer
success
The max requests per second (RPS) of the group.
Can be used with either RATE or UTILIZATION balancing modes, but required if RATE mode. For RATE mode, either maxRate or one of maxRatePerInstance or maxRatePerEndpoint, as appropriate for group type, must be set.

 
maxRatePerEndpoint
string
success
The max requests per second (RPS) that a single backend network endpoint can handle. This is used to calculate the capacity of the group. Can be used in either balancing mode. For RATE mode, either maxRate or maxRatePerEndpoint must be set.

 
maxRatePerInstance
string
success
The max requests per second (RPS) that a single backend instance can handle. This is used to calculate the capacity of the group. Can be used in either balancing mode. For RATE mode, either maxRate or maxRatePerInstance must be set.

 
maxUtilization
string
success
Used when balancingMode is UTILIZATION. This ratio defines the CPU utilization target for the group. The default is 0.8. Valid range is [0.0, 1.0].

cdnPolicy
complex
success
Cloud CDN configuration for this BackendService.

 
cacheKeyPolicy
complex
success
The CacheKeyPolicy for this CdnPolicy.

   
includeHost
boolean
success
If true requests to different hosts will be cached separately.

   
includeProtocol
boolean
success
If true, http and https requests will be cached separately.

   
includeQueryString
boolean
success
If true, include query string parameters in the cache key according to query_string_whitelist and query_string_blacklist. If neither is set, the entire query string will be included.
If false, the query string will be excluded from the cache key entirely.

   
queryStringBlacklist
list / elements=string
success
Names of query string parameters to exclude in cache keys.
All other parameters will be included. Either specify query_string_whitelist or query_string_blacklist, not both.
'&' and '=' will be percent encoded and not treated as delimiters.

   
queryStringWhitelist
list / elements=string
success
Names of query string parameters to include in cache keys.
All other parameters will be excluded. Either specify query_string_whitelist or query_string_blacklist, not both.
'&' and '=' will be percent encoded and not treated as delimiters.

 
signedUrlCacheMaxAgeSec
integer
success
Maximum number of seconds the response to a signed URL request will be considered fresh, defaults to 1hr (3600s). After this time period, the response will be revalidated before being served.
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.

circuitBreakers
complex
success
Settings controlling the volume of connections to a backend service. This field is applicable only when the load_balancing_scheme is set to INTERNAL_SELF_MANAGED.

 
maxConnections
integer
success
The maximum number of connections to the backend cluster.
Defaults to 1024.

 
maxPendingRequests
integer
success
The maximum number of pending requests to the backend cluster.
Defaults to 1024.

 
maxRequests
integer
success
The maximum number of parallel requests to the backend cluster.
Defaults to 1024.

 
maxRequestsPerConnection
integer
success
Maximum requests for a single backend connection. This parameter is respected by both the HTTP/1.1 and HTTP/2 implementations. If not specified, there is no limit. Setting this parameter to 1 will effectively disable keep alive.

 
maxRetries
integer
success
The maximum number of parallel retries to the backend cluster.
Defaults to 3.

connectionDraining
complex
success
Settings for connection draining .

 
drainingTimeoutSec
integer
success
Time for which instance will be drained (not accept new connections, but still work to finish started).

consistentHash
complex
success
Consistent Hash-based load balancing can be used to provide soft session affinity based on HTTP headers, cookies or other properties. This load balancing policy is applicable only for HTTP connections. The affinity to a particular destination host will be lost when one or more hosts are added/removed from the destination service. This field specifies parameters that control consistent hashing. This field only applies if the load_balancing_scheme is set to INTERNAL_SELF_MANAGED. This field is only applicable when locality_lb_policy is set to MAGLEV or RING_HASH.

 
httpCookie
complex
success
Hash is based on HTTP Cookie. This field describes a HTTP cookie that will be used as the hash key for the consistent hash load balancer. If the cookie is not present, it will be generated.
This field is applicable if the sessionAffinity is set to HTTP_COOKIE.

   
name
string
success
Name of the cookie.

   
path
string
success
Path to set for the cookie.

   
ttl
complex
success
Lifetime of the cookie.

     
nanos
integer
success
Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 seconds field and a positive nanos field. Must be from 0 to 999,999,999 inclusive.

     
seconds
integer
success
Span of time at a resolution of a second.
Must be from 0 to 315,576,000,000 inclusive.

 
httpHeaderName
string
success
The hash based on the value of the specified header field.
This field is applicable if the sessionAffinity is set to HEADER_FIELD.

 
minimumRingSize
integer
success
The minimum number of virtual nodes to use for the hash ring.
Larger ring sizes result in more granular load distributions. If the number of hosts in the load balancing pool is larger than the ring size, each host will be assigned a single virtual node.
Defaults to 1024.

creationTimestamp
string
success
Creation timestamp in RFC3339 text format.

customRequestHeaders
list / elements=string
success
Headers that the HTTP/S load balancer should add to proxied requests.

description
string
success
An optional description of this resource.

enableCDN
boolean
success
If true, enable Cloud CDN for this BackendService.

fingerprint
string
success
Fingerprint of this resource. A hash of the contents stored in this object. This field is used in optimistic locking.

healthChecks
list / elements=string
success
The set of URLs to the HttpHealthCheck or HttpsHealthCheck resource for health checking this BackendService. Currently at most one health check can be specified.
A health check must be specified unless the backend service uses an internet or serverless NEG as a backend.
For internal load balancing, a URL to a HealthCheck resource must be specified instead.

iap
complex
success
Settings for enabling Cloud Identity Aware Proxy.

 
enabled
boolean
success
Enables IAP.

 
oauth2ClientId
string
success
OAuth2 Client ID for IAP .

 
oauth2ClientSecret
string
success
OAuth2 Client Secret for IAP .

 
oauth2ClientSecretSha256
string
success
OAuth2 Client Secret SHA-256 for IAP .

id
integer
success
The unique identifier for the resource.

loadBalancingScheme
string
success
Indicates whether the backend service will be used with internal or external load balancing. A backend service created for one type of load balancing cannot be used with the other.

localityLbPolicy
string
success
The load balancing algorithm used within the scope of the locality.
The possible values are - ROUND_ROBIN - This is a simple policy in which each healthy backend is selected in round robin order.
LEAST_REQUEST - An O(1) algorithm which selects two random healthy hosts and picks the host which has fewer active requests.
RING_HASH - The ring/modulo hash load balancer implements consistent hashing to backends. The algorithm has the property that the addition/removal of a host from a set of N hosts only affects 1/N of the requests.
RANDOM - The load balancer selects a random healthy host.
ORIGINAL_DESTINATION - Backend host is selected based on the client connection metadata, i.e., connections are opened to the same address as the destination address of the incoming connection before the connection was redirected to the load balancer.
MAGLEV - used as a drop in replacement for the ring hash load balancer.
Maglev is not as stable as ring hash but has faster table lookup build times and host selection times. For more information about Maglev, refer to https://ai.google/research/pubs/pub44824 This field is applicable only when the load_balancing_scheme is set to INTERNAL_SELF_MANAGED.

logConfig
complex
success
This field denotes the logging options for the load balancer traffic served by this backend service.
If logging is enabled, logs will be exported to Stackdriver.

 
enable
boolean
success
Whether to enable logging for the load balancer traffic served by this backend service.

 
sampleRate
string
success
This field can only be specified if logging is enabled for this backend service. The value of the field must be in [0, 1]. This configures the sampling rate of requests to the load balancer where 1.0 means all logged requests are reported and 0.0 means no logged requests are reported.
The default value is 1.0.

name
string
success
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.

outlierDetection
complex
success
Settings controlling eviction of unhealthy hosts from the load balancing pool.
This field is applicable only when the load_balancing_scheme is set to INTERNAL_SELF_MANAGED.

 
baseEjectionTime
complex
success
The base time that a host is ejected for. The real time is equal to the base time multiplied by the number of times the host has been ejected. Defaults to 30000ms or 30s.

   
nanos
integer
success
Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.

   
seconds
integer
success
Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive.

 
consecutiveErrors
integer
success
Number of errors before a host is ejected from the connection pool. When the backend host is accessed over HTTP, a 5xx return code qualifies as an error.
Defaults to 5.

 
consecutiveGatewayFailure
integer
success
The number of consecutive gateway failures (502, 503, 504 status or connection errors that are mapped to one of those status codes) before a consecutive gateway failure ejection occurs. Defaults to 5.

 
enforcingConsecutiveErrors
integer
success
The percentage chance that a host will be actually ejected when an outlier status is detected through consecutive 5xx. This setting can be used to disable ejection or to ramp it up slowly. Defaults to 100.

 
enforcingConsecutiveGatewayFailure
integer
success
The percentage chance that a host will be actually ejected when an outlier status is detected through consecutive gateway failures. This setting can be used to disable ejection or to ramp it up slowly. Defaults to 0.

 
enforcingSuccessRate
integer
success
The percentage chance that a host will be actually ejected when an outlier status is detected through success rate statistics. This setting can be used to disable ejection or to ramp it up slowly. Defaults to 100.

 
interval
complex
success
Time interval between ejection sweep analysis. This can result in both new ejections as well as hosts being returned to service. Defaults to 10 seconds.

   
nanos
integer
success
Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.

   
seconds
integer
success
Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive.

 
maxEjectionPercent
integer
success
Maximum percentage of hosts in the load balancing pool for the backend service that can be ejected. Defaults to 10%.

 
successRateMinimumHosts
integer
success
The number of hosts in a cluster that must have enough request volume to detect success rate outliers. If the number of hosts is less than this setting, outlier detection via success rate statistics is not performed for any host in the cluster. Defaults to 5.

 
successRateRequestVolume
integer
success
The minimum number of total requests that must be collected in one interval (as defined by the interval duration above) to include this host in success rate based outlier detection. If the volume is lower than this setting, outlier detection via success rate statistics is not performed for that host. Defaults to 100.

 
successRateStdevFactor
integer
success
This factor is used to determine the ejection threshold for success rate outlier ejection. The ejection threshold is the difference between the mean success rate, and the product of this factor and the standard deviation of the mean success rate: mean - (stdev * success_rate_stdev_factor). This factor is divided by a thousand to get a double. That is, if the desired factor is 1.9, the runtime value should be 1900. Defaults to 1900.

portName
string
success
Name of backend port. The same name should appear in the instance groups referenced by this service. Required when the load balancing scheme is EXTERNAL.

protocol
string
success
The protocol this BackendService uses to communicate with backends.
The default is HTTP. **NOTE**: HTTP2 is only valid for beta HTTP/2 load balancer types and may result in errors if used with the GA API.

securityPolicy
string
success
The security policy associated with this backend service.

sessionAffinity
string
success
Type of session affinity to use. The default is NONE. Session affinity is not applicable if the protocol is UDP.

timeoutSec
integer
success
How many seconds to wait for the backend before considering it a failed request. Default is 30 seconds. Valid range is [1, 86400].



Authors

  • Google Inc. (@googlecloudplatform)