gcp_compute_backend_service – Creates a GCP BackendService

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Ansible/docs/2.9/modules/gcp compute backend service module


gcp_compute_backend_service – Creates a GCP BackendService

New in version 2.6.


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

  • application
  • machineaccount
  • serviceaccount

The type of credential used.

backends

list

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

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 service can not contain mix of 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

added in 2.9

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

added in 2.9

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

  • no
  • yes

If true requests to different hosts will be cached separately.

include_protocol

boolean

  • no
  • yes

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

include_query_string

boolean

  • 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

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

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

added in 2.8

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.

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).

description

string

An optional description of this resource.

enable_cdn

boolean

  • 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 / required

The set of URLs to the HttpHealthCheck or HttpsHealthCheck resource for health checking this BackendService. Currently at most one health check can be specified, and a health check is required.

For internal load balancing, a URL to a HealthCheck resource must be specified instead.

iap

dictionary

added in 2.7

Settings for enabling Cloud Identity Aware Proxy.

enabled

boolean

  • 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

added in 2.7

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. Must be `EXTERNAL` or `INTERNAL_SELF_MANAGED` for a global backend service. Defaults to `EXTERNAL`.

Some valid choices include: "EXTERNAL", "INTERNAL_SELF_MANAGED"

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.

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.

Possible values are HTTP, HTTPS, HTTP2, TCP, and SSL. 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"

scopes

list

Array of scopes to be used.

security_policy

string

added in 2.8

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.

When the load balancing scheme is EXTERNAL, can be NONE, CLIENT_IP, or GENERATED_COOKIE.

When the protocol is UDP, this field is not used.

Some valid choices include: "NONE", "CLIENT_IP", "GENERATED_COOKIE"

state

string

  • 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 c(gcp_service_account_file) env variable.
  • for authentication, you can set service_account_contents using the c(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
  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
  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
  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 service can not contain mix of 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

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

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.


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).


creationTimestamp

string

success

Creation timestamp in RFC3339 text format.


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

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, and a health check is required.

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. Must be `EXTERNAL` or `INTERNAL_SELF_MANAGED` for a global backend service. Defaults to `EXTERNAL`.


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.


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.

Possible values are HTTP, HTTPS, HTTP2, TCP, and SSL. 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.

When the load balancing scheme is EXTERNAL, can be NONE, CLIENT_IP, or GENERATED_COOKIE.

When the protocol is UDP, this field is not used.


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].





Status

Authors

  • Google Inc. (@googlecloudplatform)

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© 2012–2018 Michael DeHaan
© 2018–2019 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/2.9/modules/gcp_compute_backend_service_module.html