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resource_compute_region_backend_service.go
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resource_compute_region_backend_service.go
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// ----------------------------------------------------------------------------
//
// *** AUTO GENERATED CODE *** AUTO GENERATED CODE ***
//
// ----------------------------------------------------------------------------
//
// This file is automatically generated by Magic Modules and manual
// changes will be clobbered when the file is regenerated.
//
// Please read more about how to change this file in
// .github/CONTRIBUTING.md.
//
// ----------------------------------------------------------------------------
package google
import (
"fmt"
"log"
"reflect"
"strconv"
"time"
"github.com/hashicorp/terraform-plugin-sdk/helper/schema"
"github.com/hashicorp/terraform-plugin-sdk/helper/validation"
"google.golang.org/api/googleapi"
)
// Fields in "backends" that are not allowed for INTERNAL backend services
// (loadBalancingScheme) - the API returns an error if they are set at all
// in the request.
var backendServiceOnlyNonInternalFieldNames = []string{
"capacity_scaler",
"max_connections",
"max_connections_per_instance",
"max_connections_per_endpoint",
"max_rate",
"max_rate_per_instance",
"max_rate_per_endpoint",
"max_utilization",
}
// validateNonInternalBackendServiceBackends ensures capacity_scaler is set for each backend in an non-INTERNAL
// backend service. To prevent a permadiff, we decided to override the API behavior and require the
//// capacity_scaler value in this case.
//
// The API:
// - requires the sum of the backends' capacity_scalers be > 0
// - defaults to 1 if capacity_scaler is omitted from the request
//
// However, the schema.Set Hash function defaults to 0 if not given, which we chose because it's the default
// float and because INTERNAL backends can't have the value set, so there will be a permadiff for a
// situational non-zero default returned from the API. We can't diff suppress or customdiff a
// field inside a set object in ResourceDiff, since the value also determines the hash for that set object.
func validateNonInternalBackendServiceBackends(backends []interface{}, d *schema.ResourceDiff) error {
sum := 0.0
for _, b := range backends {
if b == nil {
continue
}
backend := b.(map[string]interface{})
if v, ok := backend["capacity_scaler"]; ok && v != nil {
sum += v.(float64)
} else {
return fmt.Errorf("capacity_scaler is required for each backend in non-INTERNAL backend service")
}
}
if sum == 0.0 {
return fmt.Errorf("non-INTERNAL backend service must have at least one non-zero capacity_scaler for backends")
}
return nil
}
// If INTERNAL, make sure the user did not provide values for any of the fields that cannot be sent.
// We ignore these values regardless when sent to the API, but this adds plan-time validation if a
// user sets the value to non-zero. We can't validate for empty but set because
// of how the SDK handles set objects (on any read, nil fields will get set to empty values)
func validateInternalBackendServiceBackends(backends []interface{}, d *schema.ResourceDiff) error {
for _, b := range backends {
if b == nil {
continue
}
backend := b.(map[string]interface{})
for _, fn := range backendServiceOnlyNonInternalFieldNames {
if v, ok := backend[fn]; ok && !isEmptyValue(reflect.ValueOf(v)) {
return fmt.Errorf("%q cannot be set for INTERNAL backend service, found value %v", fn, v)
}
}
}
return nil
}
func customDiffRegionBackendService(d *schema.ResourceDiff, meta interface{}) error {
v, ok := d.GetOk("backend")
if !ok {
return nil
}
if v == nil {
return nil
}
backends := v.(*schema.Set).List()
if len(backends) == 0 {
return nil
}
switch d.Get("load_balancing_scheme").(string) {
case "INTERNAL":
return validateInternalBackendServiceBackends(backends, d)
default:
return validateNonInternalBackendServiceBackends(backends, d)
}
}
func resourceComputeRegionBackendService() *schema.Resource {
return &schema.Resource{
Create: resourceComputeRegionBackendServiceCreate,
Read: resourceComputeRegionBackendServiceRead,
Update: resourceComputeRegionBackendServiceUpdate,
Delete: resourceComputeRegionBackendServiceDelete,
Importer: &schema.ResourceImporter{
State: resourceComputeRegionBackendServiceImport,
},
Timeouts: &schema.ResourceTimeout{
Create: schema.DefaultTimeout(4 * time.Minute),
Update: schema.DefaultTimeout(4 * time.Minute),
Delete: schema.DefaultTimeout(4 * time.Minute),
},
SchemaVersion: 1,
MigrateState: migrateStateNoop,
CustomizeDiff: customDiffRegionBackendService,
Schema: map[string]*schema.Schema{
"health_checks": {
Type: schema.TypeSet,
Required: true,
Description: `The set of URLs to HealthCheck resources for health checking
this RegionBackendService. Currently at most one health
check can be specified, and a health check is required.`,
MinItems: 1,
MaxItems: 1,
Elem: &schema.Schema{
Type: schema.TypeString,
},
Set: selfLinkRelativePathHash,
},
"name": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
Description: `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.`,
},
"affinity_cookie_ttl_sec": {
Type: schema.TypeInt,
Optional: true,
Description: `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.`,
},
"backend": {
Type: schema.TypeSet,
Optional: true,
Description: `The set of backends that serve this RegionBackendService.`,
Elem: computeRegionBackendServiceBackendSchema(),
Set: resourceGoogleComputeBackendServiceBackendHash,
},
"circuit_breakers": {
Type: schema.TypeList,
Optional: true,
Description: `Settings controlling the volume of connections to a backend service. This field
is applicable only when the 'load_balancing_scheme' is set to INTERNAL_MANAGED
and the 'protocol' is set to HTTP, HTTPS, or HTTP2.`,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"max_connections": {
Type: schema.TypeInt,
Optional: true,
Description: `The maximum number of connections to the backend cluster.
Defaults to 1024.`,
Default: 1024,
AtLeastOneOf: []string{"circuit_breakers.0.max_requests_per_connection", "circuit_breakers.0.max_connections", "circuit_breakers.0.max_pending_requests", "circuit_breakers.0.max_requests", "circuit_breakers.0.max_retries"},
},
"max_pending_requests": {
Type: schema.TypeInt,
Optional: true,
Description: `The maximum number of pending requests to the backend cluster.
Defaults to 1024.`,
Default: 1024,
AtLeastOneOf: []string{"circuit_breakers.0.max_requests_per_connection", "circuit_breakers.0.max_connections", "circuit_breakers.0.max_pending_requests", "circuit_breakers.0.max_requests", "circuit_breakers.0.max_retries"},
},
"max_requests": {
Type: schema.TypeInt,
Optional: true,
Description: `The maximum number of parallel requests to the backend cluster.
Defaults to 1024.`,
Default: 1024,
AtLeastOneOf: []string{"circuit_breakers.0.max_requests_per_connection", "circuit_breakers.0.max_connections", "circuit_breakers.0.max_pending_requests", "circuit_breakers.0.max_requests", "circuit_breakers.0.max_retries"},
},
"max_requests_per_connection": {
Type: schema.TypeInt,
Optional: true,
Description: `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.`,
AtLeastOneOf: []string{"circuit_breakers.0.max_requests_per_connection", "circuit_breakers.0.max_connections", "circuit_breakers.0.max_pending_requests", "circuit_breakers.0.max_requests", "circuit_breakers.0.max_retries"},
},
"max_retries": {
Type: schema.TypeInt,
Optional: true,
Description: `The maximum number of parallel retries to the backend cluster.
Defaults to 3.`,
Default: 3,
AtLeastOneOf: []string{"circuit_breakers.0.max_requests_per_connection", "circuit_breakers.0.max_connections", "circuit_breakers.0.max_pending_requests", "circuit_breakers.0.max_requests", "circuit_breakers.0.max_retries"},
},
},
},
},
"connection_draining_timeout_sec": {
Type: schema.TypeInt,
Optional: true,
Description: `Time for which instance will be drained (not accept new
connections, but still work to finish started).`,
Default: 0,
},
"consistent_hash": {
Type: schema.TypeList,
Optional: true,
Description: `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 when all of the following are true -
* 'load_balancing_scheme' is set to INTERNAL_MANAGED
* 'protocol' is set to HTTP, HTTPS, or HTTP2
* 'locality_lb_policy' is set to MAGLEV or RING_HASH`,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"http_cookie": {
Type: schema.TypeList,
Optional: true,
Description: `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.`,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"name": {
Type: schema.TypeString,
Optional: true,
Description: `Name of the cookie.`,
AtLeastOneOf: []string{"consistent_hash.0.http_cookie.0.ttl", "consistent_hash.0.http_cookie.0.name", "consistent_hash.0.http_cookie.0.path"},
},
"path": {
Type: schema.TypeString,
Optional: true,
Description: `Path to set for the cookie.`,
AtLeastOneOf: []string{"consistent_hash.0.http_cookie.0.ttl", "consistent_hash.0.http_cookie.0.name", "consistent_hash.0.http_cookie.0.path"},
},
"ttl": {
Type: schema.TypeList,
Optional: true,
Description: `Lifetime of the cookie.`,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"seconds": {
Type: schema.TypeInt,
Required: true,
Description: `Span of time at a resolution of a second.
Must be from 0 to 315,576,000,000 inclusive.`,
},
"nanos": {
Type: schema.TypeInt,
Optional: true,
Description: `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.`,
},
},
},
AtLeastOneOf: []string{"consistent_hash.0.http_cookie.0.ttl", "consistent_hash.0.http_cookie.0.name", "consistent_hash.0.http_cookie.0.path"},
},
},
},
AtLeastOneOf: []string{"consistent_hash.0.http_cookie", "consistent_hash.0.http_header_name", "consistent_hash.0.minimum_ring_size"},
},
"http_header_name": {
Type: schema.TypeString,
Optional: true,
Description: `The hash based on the value of the specified header field.
This field is applicable if the sessionAffinity is set to HEADER_FIELD.`,
AtLeastOneOf: []string{"consistent_hash.0.http_cookie", "consistent_hash.0.http_header_name", "consistent_hash.0.minimum_ring_size"},
},
"minimum_ring_size": {
Type: schema.TypeInt,
Optional: true,
Description: `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.`,
Default: 1024,
AtLeastOneOf: []string{"consistent_hash.0.http_cookie", "consistent_hash.0.http_header_name", "consistent_hash.0.minimum_ring_size"},
},
},
},
},
"description": {
Type: schema.TypeString,
Optional: true,
Description: `An optional description of this resource.`,
},
"failover_policy": {
Type: schema.TypeList,
Optional: true,
Description: `Policy for failovers.`,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"disable_connection_drain_on_failover": {
Type: schema.TypeBool,
Optional: true,
Description: `On failover or failback, this field indicates whether connection drain
will be honored. Setting this to true has the following effect: connections
to the old active pool are not drained. Connections to the new active pool
use the timeout of 10 min (currently fixed). Setting to false has the
following effect: both old and new connections will have a drain timeout
of 10 min.
This can be set to true only if the protocol is TCP.
The default is false.`,
AtLeastOneOf: []string{"failover_policy.0.disable_connection_drain_on_failover", "failover_policy.0.drop_traffic_if_unhealthy", "failover_policy.0.failover_ratio"},
},
"drop_traffic_if_unhealthy": {
Type: schema.TypeBool,
Optional: true,
Description: `This option is used only when no healthy VMs are detected in the primary
and backup instance groups. When set to true, traffic is dropped. When
set to false, new connections are sent across all VMs in the primary group.
The default is false.`,
AtLeastOneOf: []string{"failover_policy.0.disable_connection_drain_on_failover", "failover_policy.0.drop_traffic_if_unhealthy", "failover_policy.0.failover_ratio"},
},
"failover_ratio": {
Type: schema.TypeFloat,
Optional: true,
Description: `The value of the field must be in [0, 1]. If the ratio of the healthy
VMs in the primary backend is at or below this number, traffic arriving
at the load-balanced IP will be directed to the failover backend.
In case where 'failoverRatio' is not set or all the VMs in the backup
backend are unhealthy, the traffic will be directed back to the primary
backend in the "force" mode, where traffic will be spread to the healthy
VMs with the best effort, or to all VMs when no VM is healthy.
This field is only used with l4 load balancing.`,
AtLeastOneOf: []string{"failover_policy.0.disable_connection_drain_on_failover", "failover_policy.0.drop_traffic_if_unhealthy", "failover_policy.0.failover_ratio"},
},
},
},
},
"load_balancing_scheme": {
Type: schema.TypeString,
Optional: true,
ForceNew: true,
ValidateFunc: validation.StringInSlice([]string{"INTERNAL", "INTERNAL_MANAGED", ""}, false),
Description: `Indicates what kind of load balancing this regional backend service
will be used for. A backend service created for one type of load
balancing cannot be used with the other(s). Default value: "INTERNAL" Possible values: ["INTERNAL", "INTERNAL_MANAGED"]`,
Default: "INTERNAL",
},
"locality_lb_policy": {
Type: schema.TypeString,
Optional: true,
ValidateFunc: validation.StringInSlice([]string{"ROUND_ROBIN", "LEAST_REQUEST", "RING_HASH", "RANDOM", "ORIGINAL_DESTINATION", "MAGLEV", ""}, false),
Description: `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_MANAGED and the 'protocol' is set to HTTP, HTTPS, or HTTP2. Possible values: ["ROUND_ROBIN", "LEAST_REQUEST", "RING_HASH", "RANDOM", "ORIGINAL_DESTINATION", "MAGLEV"]`,
},
"log_config": {
Type: schema.TypeList,
Optional: true,
Description: `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.`,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"enable": {
Type: schema.TypeBool,
Optional: true,
Description: `Whether to enable logging for the load balancer traffic served by this backend service.`,
AtLeastOneOf: []string{"log_config.0.enable", "log_config.0.sample_rate"},
},
"sample_rate": {
Type: schema.TypeFloat,
Optional: true,
Description: `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.`,
AtLeastOneOf: []string{"log_config.0.enable", "log_config.0.sample_rate"},
},
},
},
},
"network": {
Type: schema.TypeString,
Optional: true,
DiffSuppressFunc: compareSelfLinkOrResourceName,
Description: `The URL of the network to which this backend service belongs.
This field can only be specified when the load balancing scheme is set to INTERNAL.`,
},
"outlier_detection": {
Type: schema.TypeList,
Optional: true,
Description: `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_MANAGED and the 'protocol' is set to HTTP, HTTPS, or HTTP2.`,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"base_ejection_time": {
Type: schema.TypeList,
Optional: true,
Description: `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.`,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"seconds": {
Type: schema.TypeInt,
Required: true,
Description: `Span of time at a resolution of a second. Must be from 0 to 315,576,000,000
inclusive.`,
},
"nanos": {
Type: schema.TypeInt,
Optional: true,
Description: `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.`,
},
},
},
AtLeastOneOf: []string{"outlier_detection.0.base_ejection_time", "outlier_detection.0.consecutive_errors", "outlier_detection.0.consecutive_gateway_failure", "outlier_detection.0.enforcing_consecutive_errors", "outlier_detection.0.enforcing_consecutive_gateway_failure", "outlier_detection.0.enforcing_success_rate", "outlier_detection.0.interval", "outlier_detection.0.max_ejection_percent", "outlier_detection.0.success_rate_minimum_hosts", "outlier_detection.0.success_rate_request_volume", "outlier_detection.0.success_rate_stdev_factor"},
},
"consecutive_errors": {
Type: schema.TypeInt,
Optional: true,
Description: `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.`,
Default: 5,
AtLeastOneOf: []string{"outlier_detection.0.base_ejection_time", "outlier_detection.0.consecutive_errors", "outlier_detection.0.consecutive_gateway_failure", "outlier_detection.0.enforcing_consecutive_errors", "outlier_detection.0.enforcing_consecutive_gateway_failure", "outlier_detection.0.enforcing_success_rate", "outlier_detection.0.interval", "outlier_detection.0.max_ejection_percent", "outlier_detection.0.success_rate_minimum_hosts", "outlier_detection.0.success_rate_request_volume", "outlier_detection.0.success_rate_stdev_factor"},
},
"consecutive_gateway_failure": {
Type: schema.TypeInt,
Optional: true,
Description: `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.`,
Default: 5,
AtLeastOneOf: []string{"outlier_detection.0.base_ejection_time", "outlier_detection.0.consecutive_errors", "outlier_detection.0.consecutive_gateway_failure", "outlier_detection.0.enforcing_consecutive_errors", "outlier_detection.0.enforcing_consecutive_gateway_failure", "outlier_detection.0.enforcing_success_rate", "outlier_detection.0.interval", "outlier_detection.0.max_ejection_percent", "outlier_detection.0.success_rate_minimum_hosts", "outlier_detection.0.success_rate_request_volume", "outlier_detection.0.success_rate_stdev_factor"},
},
"enforcing_consecutive_errors": {
Type: schema.TypeInt,
Optional: true,
Description: `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.`,
Default: 100,
AtLeastOneOf: []string{"outlier_detection.0.base_ejection_time", "outlier_detection.0.consecutive_errors", "outlier_detection.0.consecutive_gateway_failure", "outlier_detection.0.enforcing_consecutive_errors", "outlier_detection.0.enforcing_consecutive_gateway_failure", "outlier_detection.0.enforcing_success_rate", "outlier_detection.0.interval", "outlier_detection.0.max_ejection_percent", "outlier_detection.0.success_rate_minimum_hosts", "outlier_detection.0.success_rate_request_volume", "outlier_detection.0.success_rate_stdev_factor"},
},
"enforcing_consecutive_gateway_failure": {
Type: schema.TypeInt,
Optional: true,
Description: `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.`,
Default: 0,
AtLeastOneOf: []string{"outlier_detection.0.base_ejection_time", "outlier_detection.0.consecutive_errors", "outlier_detection.0.consecutive_gateway_failure", "outlier_detection.0.enforcing_consecutive_errors", "outlier_detection.0.enforcing_consecutive_gateway_failure", "outlier_detection.0.enforcing_success_rate", "outlier_detection.0.interval", "outlier_detection.0.max_ejection_percent", "outlier_detection.0.success_rate_minimum_hosts", "outlier_detection.0.success_rate_request_volume", "outlier_detection.0.success_rate_stdev_factor"},
},
"enforcing_success_rate": {
Type: schema.TypeInt,
Optional: true,
Description: `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.`,
Default: 100,
AtLeastOneOf: []string{"outlier_detection.0.base_ejection_time", "outlier_detection.0.consecutive_errors", "outlier_detection.0.consecutive_gateway_failure", "outlier_detection.0.enforcing_consecutive_errors", "outlier_detection.0.enforcing_consecutive_gateway_failure", "outlier_detection.0.enforcing_success_rate", "outlier_detection.0.interval", "outlier_detection.0.max_ejection_percent", "outlier_detection.0.success_rate_minimum_hosts", "outlier_detection.0.success_rate_request_volume", "outlier_detection.0.success_rate_stdev_factor"},
},
"interval": {
Type: schema.TypeList,
Optional: true,
Description: `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.`,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"seconds": {
Type: schema.TypeInt,
Required: true,
Description: `Span of time at a resolution of a second. Must be from 0 to 315,576,000,000
inclusive.`,
},
"nanos": {
Type: schema.TypeInt,
Optional: true,
Description: `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.`,
},
},
},
AtLeastOneOf: []string{"outlier_detection.0.base_ejection_time", "outlier_detection.0.consecutive_errors", "outlier_detection.0.consecutive_gateway_failure", "outlier_detection.0.enforcing_consecutive_errors", "outlier_detection.0.enforcing_consecutive_gateway_failure", "outlier_detection.0.enforcing_success_rate", "outlier_detection.0.interval", "outlier_detection.0.max_ejection_percent", "outlier_detection.0.success_rate_minimum_hosts", "outlier_detection.0.success_rate_request_volume", "outlier_detection.0.success_rate_stdev_factor"},
},
"max_ejection_percent": {
Type: schema.TypeInt,
Optional: true,
Description: `Maximum percentage of hosts in the load balancing pool for the backend service
that can be ejected. Defaults to 10%.`,
Default: 10,
AtLeastOneOf: []string{"outlier_detection.0.base_ejection_time", "outlier_detection.0.consecutive_errors", "outlier_detection.0.consecutive_gateway_failure", "outlier_detection.0.enforcing_consecutive_errors", "outlier_detection.0.enforcing_consecutive_gateway_failure", "outlier_detection.0.enforcing_success_rate", "outlier_detection.0.interval", "outlier_detection.0.max_ejection_percent", "outlier_detection.0.success_rate_minimum_hosts", "outlier_detection.0.success_rate_request_volume", "outlier_detection.0.success_rate_stdev_factor"},
},
"success_rate_minimum_hosts": {
Type: schema.TypeInt,
Optional: true,
Description: `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.`,
Default: 5,
AtLeastOneOf: []string{"outlier_detection.0.base_ejection_time", "outlier_detection.0.consecutive_errors", "outlier_detection.0.consecutive_gateway_failure", "outlier_detection.0.enforcing_consecutive_errors", "outlier_detection.0.enforcing_consecutive_gateway_failure", "outlier_detection.0.enforcing_success_rate", "outlier_detection.0.interval", "outlier_detection.0.max_ejection_percent", "outlier_detection.0.success_rate_minimum_hosts", "outlier_detection.0.success_rate_request_volume", "outlier_detection.0.success_rate_stdev_factor"},
},
"success_rate_request_volume": {
Type: schema.TypeInt,
Optional: true,
Description: `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.`,
Default: 100,
AtLeastOneOf: []string{"outlier_detection.0.base_ejection_time", "outlier_detection.0.consecutive_errors", "outlier_detection.0.consecutive_gateway_failure", "outlier_detection.0.enforcing_consecutive_errors", "outlier_detection.0.enforcing_consecutive_gateway_failure", "outlier_detection.0.enforcing_success_rate", "outlier_detection.0.interval", "outlier_detection.0.max_ejection_percent", "outlier_detection.0.success_rate_minimum_hosts", "outlier_detection.0.success_rate_request_volume", "outlier_detection.0.success_rate_stdev_factor"},
},
"success_rate_stdev_factor": {
Type: schema.TypeInt,
Optional: true,
Description: `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.`,
Default: 1900,
AtLeastOneOf: []string{"outlier_detection.0.base_ejection_time", "outlier_detection.0.consecutive_errors", "outlier_detection.0.consecutive_gateway_failure", "outlier_detection.0.enforcing_consecutive_errors", "outlier_detection.0.enforcing_consecutive_gateway_failure", "outlier_detection.0.enforcing_success_rate", "outlier_detection.0.interval", "outlier_detection.0.max_ejection_percent", "outlier_detection.0.success_rate_minimum_hosts", "outlier_detection.0.success_rate_request_volume", "outlier_detection.0.success_rate_stdev_factor"},
},
},
},
},
"port_name": {
Type: schema.TypeString,
Computed: true,
Optional: true,
Description: `A named port on a backend instance group representing the port for
communication to the backend VMs in that group. Required when the
loadBalancingScheme is EXTERNAL, INTERNAL_MANAGED, or INTERNAL_SELF_MANAGED
and the backends are instance groups. The named port must be defined on each
backend instance group. This parameter has no meaning if the backends are NEGs. API sets a
default of "http" if not given.
Must be omitted when the loadBalancingScheme is INTERNAL (Internal TCP/UDP Load Balancing).`,
},
"protocol": {
Type: schema.TypeString,
Computed: true,
Optional: true,
ValidateFunc: validation.StringInSlice([]string{"HTTP", "HTTPS", "HTTP2", "SSL", "TCP", "UDP", ""}, false),
Description: `The protocol this RegionBackendService 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. Possible values: ["HTTP", "HTTPS", "HTTP2", "SSL", "TCP", "UDP"]`,
},
"region": {
Type: schema.TypeString,
Computed: true,
Optional: true,
DiffSuppressFunc: compareSelfLinkOrResourceName,
Description: `The Region in which the created backend service should reside.
If it is not provided, the provider region is used.`,
},
"session_affinity": {
Type: schema.TypeString,
Computed: true,
Optional: true,
ValidateFunc: validation.StringInSlice([]string{"NONE", "CLIENT_IP", "CLIENT_IP_PORT_PROTO", "CLIENT_IP_PROTO", "GENERATED_COOKIE", "HEADER_FIELD", "HTTP_COOKIE", ""}, false),
Description: `Type of session affinity to use. The default is NONE. Session affinity is
not applicable if the protocol is UDP. Possible values: ["NONE", "CLIENT_IP", "CLIENT_IP_PORT_PROTO", "CLIENT_IP_PROTO", "GENERATED_COOKIE", "HEADER_FIELD", "HTTP_COOKIE"]`,
},
"timeout_sec": {
Type: schema.TypeInt,
Computed: true,
Optional: true,
Description: `How many seconds to wait for the backend before considering it a
failed request. Default is 30 seconds. Valid range is [1, 86400].`,
},
"creation_timestamp": {
Type: schema.TypeString,
Computed: true,
Description: `Creation timestamp in RFC3339 text format.`,
},
"fingerprint": {
Type: schema.TypeString,
Computed: true,
Description: `Fingerprint of this resource. A hash of the contents stored in this
object. This field is used in optimistic locking.`,
},
"project": {
Type: schema.TypeString,
Optional: true,
Computed: true,
ForceNew: true,
},
"self_link": {
Type: schema.TypeString,
Computed: true,
},
},
}
}
func computeRegionBackendServiceBackendSchema() *schema.Resource {
return &schema.Resource{
Schema: map[string]*schema.Schema{
"group": {
Type: schema.TypeString,
Required: true,
DiffSuppressFunc: compareSelfLinkRelativePaths,
Description: `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.
When the 'load_balancing_scheme' is INTERNAL, only instance groups
are supported.
Note that you must specify an Instance Group or Network Endpoint
Group resource using the fully-qualified URL, rather than a
partial URL.`,
},
"balancing_mode": {
Type: schema.TypeString,
Optional: true,
ValidateFunc: validation.StringInSlice([]string{"UTILIZATION", "RATE", "CONNECTION", ""}, false),
Description: `Specifies the balancing mode for this backend. Default value: "CONNECTION" Possible values: ["UTILIZATION", "RATE", "CONNECTION"]`,
Default: "CONNECTION",
},
"capacity_scaler": {
Type: schema.TypeFloat,
Optional: true,
Description: `A multiplier applied to the group's maximum servicing capacity
(based on UTILIZATION, RATE or CONNECTION).
~>**NOTE**: This field cannot be set for
INTERNAL region backend services (default loadBalancingScheme),
but is required for non-INTERNAL backend service. The total
capacity_scaler for all backends must be non-zero.
A setting of 0 means the group is completely drained, offering
0% of its available Capacity. Valid range is [0.0,1.0].`,
},
"description": {
Type: schema.TypeString,
Optional: true,
Description: `An optional description of this resource.
Provide this property when you create the resource.`,
},
"failover": {
Type: schema.TypeBool,
Computed: true,
Optional: true,
Description: `This field designates whether this is a failover backend. More
than one failover backend can be configured for a given RegionBackendService.`,
},
"max_connections": {
Type: schema.TypeInt,
Optional: true,
Description: `The max number of simultaneous connections for the group. Can
be used with either CONNECTION or UTILIZATION balancing modes.
Cannot be set for INTERNAL backend services.
For CONNECTION mode, either maxConnections or one
of maxConnectionsPerInstance or maxConnectionsPerEndpoint,
as appropriate for group type, must be set.`,
},
"max_connections_per_endpoint": {
Type: schema.TypeInt,
Optional: true,
Description: `The max number of simultaneous connections that a single backend
network endpoint can handle. Cannot be set
for INTERNAL backend services.
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": {
Type: schema.TypeInt,
Optional: true,
Description: `The max number of simultaneous connections that a single
backend instance can handle. Cannot be set for INTERNAL backend
services.
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": {
Type: schema.TypeInt,
Optional: true,
Description: `The max requests per second (RPS) of the group. Cannot be set
for INTERNAL backend services.
Can be used with either RATE or UTILIZATION balancing modes,
but required if RATE mode. Either maxRate or one
of maxRatePerInstance or maxRatePerEndpoint, as appropriate for
group type, must be set.`,
},
"max_rate_per_endpoint": {
Type: schema.TypeFloat,
Optional: true,
Description: `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. Cannot be set
for INTERNAL backend services.`,
},
"max_rate_per_instance": {
Type: schema.TypeFloat,
Optional: true,
Description: `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. Cannot be set
for INTERNAL backend services.`,
},
"max_utilization": {
Type: schema.TypeFloat,
Optional: true,
Description: `Used when balancingMode is UTILIZATION. This ratio defines the
CPU utilization target for the group. Valid range is [0.0, 1.0].
Cannot be set for INTERNAL backend services.`,
},
},
}
}
func resourceComputeRegionBackendServiceCreate(d *schema.ResourceData, meta interface{}) error {
config := meta.(*Config)
obj := make(map[string]interface{})
affinityCookieTtlSecProp, err := expandComputeRegionBackendServiceAffinityCookieTtlSec(d.Get("affinity_cookie_ttl_sec"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("affinity_cookie_ttl_sec"); !isEmptyValue(reflect.ValueOf(affinityCookieTtlSecProp)) && (ok || !reflect.DeepEqual(v, affinityCookieTtlSecProp)) {
obj["affinityCookieTtlSec"] = affinityCookieTtlSecProp
}
backendsProp, err := expandComputeRegionBackendServiceBackend(d.Get("backend"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("backend"); !isEmptyValue(reflect.ValueOf(backendsProp)) && (ok || !reflect.DeepEqual(v, backendsProp)) {
obj["backends"] = backendsProp
}
circuitBreakersProp, err := expandComputeRegionBackendServiceCircuitBreakers(d.Get("circuit_breakers"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("circuit_breakers"); !isEmptyValue(reflect.ValueOf(circuitBreakersProp)) && (ok || !reflect.DeepEqual(v, circuitBreakersProp)) {
obj["circuitBreakers"] = circuitBreakersProp
}
consistentHashProp, err := expandComputeRegionBackendServiceConsistentHash(d.Get("consistent_hash"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("consistent_hash"); !isEmptyValue(reflect.ValueOf(consistentHashProp)) && (ok || !reflect.DeepEqual(v, consistentHashProp)) {
obj["consistentHash"] = consistentHashProp
}
connectionDrainingProp, err := expandComputeRegionBackendServiceConnectionDraining(nil, d, config)
if err != nil {
return err
} else if !isEmptyValue(reflect.ValueOf(connectionDrainingProp)) {
obj["connectionDraining"] = connectionDrainingProp
}
descriptionProp, err := expandComputeRegionBackendServiceDescription(d.Get("description"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("description"); !isEmptyValue(reflect.ValueOf(descriptionProp)) && (ok || !reflect.DeepEqual(v, descriptionProp)) {
obj["description"] = descriptionProp
}
failoverPolicyProp, err := expandComputeRegionBackendServiceFailoverPolicy(d.Get("failover_policy"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("failover_policy"); !isEmptyValue(reflect.ValueOf(failoverPolicyProp)) && (ok || !reflect.DeepEqual(v, failoverPolicyProp)) {
obj["failoverPolicy"] = failoverPolicyProp
}
fingerprintProp, err := expandComputeRegionBackendServiceFingerprint(d.Get("fingerprint"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("fingerprint"); !isEmptyValue(reflect.ValueOf(fingerprintProp)) && (ok || !reflect.DeepEqual(v, fingerprintProp)) {
obj["fingerprint"] = fingerprintProp
}
healthChecksProp, err := expandComputeRegionBackendServiceHealthChecks(d.Get("health_checks"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("health_checks"); !isEmptyValue(reflect.ValueOf(healthChecksProp)) && (ok || !reflect.DeepEqual(v, healthChecksProp)) {
obj["healthChecks"] = healthChecksProp
}
loadBalancingSchemeProp, err := expandComputeRegionBackendServiceLoadBalancingScheme(d.Get("load_balancing_scheme"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("load_balancing_scheme"); !isEmptyValue(reflect.ValueOf(loadBalancingSchemeProp)) && (ok || !reflect.DeepEqual(v, loadBalancingSchemeProp)) {
obj["loadBalancingScheme"] = loadBalancingSchemeProp
}
localityLbPolicyProp, err := expandComputeRegionBackendServiceLocalityLbPolicy(d.Get("locality_lb_policy"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("locality_lb_policy"); !isEmptyValue(reflect.ValueOf(localityLbPolicyProp)) && (ok || !reflect.DeepEqual(v, localityLbPolicyProp)) {
obj["localityLbPolicy"] = localityLbPolicyProp
}
nameProp, err := expandComputeRegionBackendServiceName(d.Get("name"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("name"); !isEmptyValue(reflect.ValueOf(nameProp)) && (ok || !reflect.DeepEqual(v, nameProp)) {
obj["name"] = nameProp
}
outlierDetectionProp, err := expandComputeRegionBackendServiceOutlierDetection(d.Get("outlier_detection"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("outlier_detection"); !isEmptyValue(reflect.ValueOf(outlierDetectionProp)) && (ok || !reflect.DeepEqual(v, outlierDetectionProp)) {
obj["outlierDetection"] = outlierDetectionProp
}
portNameProp, err := expandComputeRegionBackendServicePortName(d.Get("port_name"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("port_name"); !isEmptyValue(reflect.ValueOf(portNameProp)) && (ok || !reflect.DeepEqual(v, portNameProp)) {
obj["portName"] = portNameProp
}
protocolProp, err := expandComputeRegionBackendServiceProtocol(d.Get("protocol"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("protocol"); !isEmptyValue(reflect.ValueOf(protocolProp)) && (ok || !reflect.DeepEqual(v, protocolProp)) {
obj["protocol"] = protocolProp
}
sessionAffinityProp, err := expandComputeRegionBackendServiceSessionAffinity(d.Get("session_affinity"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("session_affinity"); !isEmptyValue(reflect.ValueOf(sessionAffinityProp)) && (ok || !reflect.DeepEqual(v, sessionAffinityProp)) {
obj["sessionAffinity"] = sessionAffinityProp
}
timeoutSecProp, err := expandComputeRegionBackendServiceTimeoutSec(d.Get("timeout_sec"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("timeout_sec"); !isEmptyValue(reflect.ValueOf(timeoutSecProp)) && (ok || !reflect.DeepEqual(v, timeoutSecProp)) {
obj["timeoutSec"] = timeoutSecProp
}
logConfigProp, err := expandComputeRegionBackendServiceLogConfig(d.Get("log_config"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("log_config"); !isEmptyValue(reflect.ValueOf(logConfigProp)) && (ok || !reflect.DeepEqual(v, logConfigProp)) {
obj["logConfig"] = logConfigProp
}
networkProp, err := expandComputeRegionBackendServiceNetwork(d.Get("network"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("network"); !isEmptyValue(reflect.ValueOf(networkProp)) && (ok || !reflect.DeepEqual(v, networkProp)) {
obj["network"] = networkProp
}
regionProp, err := expandComputeRegionBackendServiceRegion(d.Get("region"), d, config)
if err != nil {
return err
} else if v, ok := d.GetOkExists("region"); !isEmptyValue(reflect.ValueOf(regionProp)) && (ok || !reflect.DeepEqual(v, regionProp)) {
obj["region"] = regionProp
}
obj, err = resourceComputeRegionBackendServiceEncoder(d, meta, obj)
if err != nil {
return err
}
url, err := replaceVars(d, config, "{{ComputeBasePath}}projects/{{project}}/regions/{{region}}/backendServices")
if err != nil {
return err
}
log.Printf("[DEBUG] Creating new RegionBackendService: %#v", obj)
project, err := getProject(d, config)
if err != nil {
return err
}
res, err := sendRequestWithTimeout(config, "POST", project, url, obj, d.Timeout(schema.TimeoutCreate))
if err != nil {
return fmt.Errorf("Error creating RegionBackendService: %s", err)
}
// Store the ID now
id, err := replaceVars(d, config, "projects/{{project}}/regions/{{region}}/backendServices/{{name}}")
if err != nil {
return fmt.Errorf("Error constructing id: %s", err)
}
d.SetId(id)
err = computeOperationWaitTime(
config, res, project, "Creating RegionBackendService",
d.Timeout(schema.TimeoutCreate))
if err != nil {
// The resource didn't actually create
d.SetId("")
return fmt.Errorf("Error waiting to create RegionBackendService: %s", err)
}
log.Printf("[DEBUG] Finished creating RegionBackendService %q: %#v", d.Id(), res)
return resourceComputeRegionBackendServiceRead(d, meta)
}
func resourceComputeRegionBackendServiceRead(d *schema.ResourceData, meta interface{}) error {
config := meta.(*Config)
url, err := replaceVars(d, config, "{{ComputeBasePath}}projects/{{project}}/regions/{{region}}/backendServices/{{name}}")
if err != nil {
return err
}
project, err := getProject(d, config)
if err != nil {
return err
}
res, err := sendRequest(config, "GET", project, url, nil)
if err != nil {
return handleNotFoundError(err, d, fmt.Sprintf("ComputeRegionBackendService %q", d.Id()))
}
res, err = resourceComputeRegionBackendServiceDecoder(d, meta, res)
if err != nil {
return err
}