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Merge pull request #4026 from zac-nixon/znixon/multi-acc-tgb
Follow up for 3691 [TargetGroupBindings can now manipulate target groups from different aws accounts]
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| package aws | ||
|
|
||
| import ( | ||
| "context" | ||
| "github.com/aws/aws-sdk-go-v2/aws" | ||
| awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware" | ||
| "github.com/aws/aws-sdk-go-v2/aws/ratelimit" | ||
| "github.com/aws/aws-sdk-go-v2/aws/retry" | ||
| "github.com/aws/aws-sdk-go-v2/config" | ||
| "github.com/aws/aws-sdk-go-v2/feature/ec2/imds" | ||
| smithymiddleware "github.com/aws/smithy-go/middleware" | ||
| "sigs.k8s.io/aws-load-balancer-controller/pkg/aws/throttle" | ||
| awsmetrics "sigs.k8s.io/aws-load-balancer-controller/pkg/metrics/aws" | ||
| "sigs.k8s.io/aws-load-balancer-controller/pkg/version" | ||
| ) | ||
|
|
||
| const ( | ||
| userAgent = "elbv2.k8s.aws" | ||
| ) | ||
|
|
||
| func NewAWSConfigGenerator(cfg CloudConfig, ec2IMDSEndpointMode imds.EndpointModeState, metricsCollector *awsmetrics.Collector) AWSConfigGenerator { | ||
| return &awsConfigGeneratorImpl{ | ||
| cfg: cfg, | ||
| ec2IMDSEndpointMode: ec2IMDSEndpointMode, | ||
| metricsCollector: metricsCollector, | ||
| } | ||
|
|
||
| } | ||
|
|
||
| // AWSConfigGenerator is responsible for generating an aws config based on the running environment | ||
| type AWSConfigGenerator interface { | ||
| GenerateAWSConfig(optFns ...func(*config.LoadOptions) error) (aws.Config, error) | ||
| } | ||
|
|
||
| type awsConfigGeneratorImpl struct { | ||
| cfg CloudConfig | ||
| ec2IMDSEndpointMode imds.EndpointModeState | ||
| metricsCollector *awsmetrics.Collector | ||
| } | ||
|
|
||
| func (gen *awsConfigGeneratorImpl) GenerateAWSConfig(optFns ...func(*config.LoadOptions) error) (aws.Config, error) { | ||
|
|
||
| defaultOpts := []func(*config.LoadOptions) error{ | ||
| config.WithRegion(gen.cfg.Region), | ||
| config.WithRetryer(func() aws.Retryer { | ||
| return retry.NewStandard(func(o *retry.StandardOptions) { | ||
| o.RateLimiter = ratelimit.None | ||
| o.MaxAttempts = gen.cfg.MaxRetries | ||
| }) | ||
| }), | ||
| config.WithEC2IMDSEndpointMode(gen.ec2IMDSEndpointMode), | ||
| config.WithAPIOptions([]func(stack *smithymiddleware.Stack) error{ | ||
| awsmiddleware.AddUserAgentKeyValue(userAgent, version.GitVersion), | ||
| }), | ||
| } | ||
|
|
||
| defaultOpts = append(defaultOpts, optFns...) | ||
|
|
||
| awsConfig, err := config.LoadDefaultConfig(context.TODO(), | ||
| defaultOpts..., | ||
| ) | ||
|
|
||
| if err != nil { | ||
| return aws.Config{}, err | ||
| } | ||
|
|
||
| if gen.cfg.ThrottleConfig != nil { | ||
| throttler := throttle.NewThrottler(gen.cfg.ThrottleConfig) | ||
| awsConfig.APIOptions = append(awsConfig.APIOptions, func(stack *smithymiddleware.Stack) error { | ||
| return throttle.WithSDKRequestThrottleMiddleware(throttler)(stack) | ||
| }) | ||
| } | ||
|
|
||
| if gen.metricsCollector != nil { | ||
| awsConfig.APIOptions = awsmetrics.WithSDKMetricCollector(gen.metricsCollector, awsConfig.APIOptions) | ||
| } | ||
|
|
||
| return awsConfig, nil | ||
| } | ||
|
|
||
| var _ AWSConfigGenerator = &awsConfigGeneratorImpl{} |
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