mirror of
https://github.com/kubernetes-sigs/external-dns.git
synced 2025-08-06 01:26:59 +02:00
78 lines
2.4 KiB
Go
78 lines
2.4 KiB
Go
/*
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Copyright 2023 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package aws
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import (
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"fmt"
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"strings"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/aws/credentials/stscreds"
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"github.com/aws/aws-sdk-go/aws/request"
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"github.com/aws/aws-sdk-go/aws/session"
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"github.com/linki/instrumented_http"
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"github.com/sirupsen/logrus"
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"sigs.k8s.io/external-dns/pkg/apis/externaldns"
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)
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// AWSSessionConfig contains configuration to create a new AWS provider.
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type AWSSessionConfig struct {
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AssumeRole string
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AssumeRoleExternalID string
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APIRetries int
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Profile string
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}
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func NewSession(awsConfig AWSSessionConfig) (*session.Session, error) {
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config := aws.NewConfig().WithMaxRetries(awsConfig.APIRetries)
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config.WithHTTPClient(
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instrumented_http.NewClient(config.HTTPClient, &instrumented_http.Callbacks{
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PathProcessor: func(path string) string {
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parts := strings.Split(path, "/")
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return parts[len(parts)-1]
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},
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}),
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)
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session, err := session.NewSessionWithOptions(session.Options{
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Config: *config,
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SharedConfigState: session.SharedConfigEnable,
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Profile: awsConfig.Profile,
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})
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if err != nil {
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return nil, fmt.Errorf("instantiating AWS session: %w", err)
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}
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if awsConfig.AssumeRole != "" {
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if awsConfig.AssumeRoleExternalID != "" {
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logrus.Infof("Assuming role: %s with external id %s", awsConfig.AssumeRole, awsConfig.AssumeRoleExternalID)
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session.Config.WithCredentials(stscreds.NewCredentials(session, awsConfig.AssumeRole, func(p *stscreds.AssumeRoleProvider) {
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p.ExternalID = &awsConfig.AssumeRoleExternalID
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}))
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} else {
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logrus.Infof("Assuming role: %s", awsConfig.AssumeRole)
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session.Config.WithCredentials(stscreds.NewCredentials(session, awsConfig.AssumeRole))
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}
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}
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session.Handlers.Build.PushBack(request.MakeAddToUserAgentHandler("ExternalDNS", externaldns.Version))
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return session, nil
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}
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