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87c77727e4
* lib/backup/s3remote: update AWS SDK to v2 * Update lib/backup/s3remote/s3.go Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com> * lib/backup/s3remote: refactor error handling Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
48 lines
1.5 KiB
Go
48 lines
1.5 KiB
Go
package config
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import (
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"context"
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"os"
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"github.com/aws/aws-sdk-go-v2/aws"
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"github.com/aws/aws-sdk-go-v2/feature/ec2/imds"
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)
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const execEnvVar = "AWS_EXECUTION_ENV"
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// DefaultsModeOptions is the set of options that are used to configure
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type DefaultsModeOptions struct {
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// The SDK configuration defaults mode. Defaults to legacy if not specified.
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//
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// Supported modes are: auto, cross-region, in-region, legacy, mobile, standard
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Mode aws.DefaultsMode
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// The EC2 Instance Metadata Client that should be used when performing environment
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// discovery when aws.DefaultsModeAuto is set.
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//
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// If not specified the SDK will construct a client if the instance metadata service has not been disabled by
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// the AWS_EC2_METADATA_DISABLED environment variable.
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IMDSClient *imds.Client
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}
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func resolveDefaultsModeRuntimeEnvironment(ctx context.Context, envConfig *EnvConfig, client *imds.Client) (aws.RuntimeEnvironment, error) {
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getRegionOutput, err := client.GetRegion(ctx, &imds.GetRegionInput{})
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// honor context timeouts, but if we couldn't talk to IMDS don't fail runtime environment introspection.
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select {
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case <-ctx.Done():
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return aws.RuntimeEnvironment{}, err
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default:
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}
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var imdsRegion string
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if err == nil {
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imdsRegion = getRegionOutput.Region
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}
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return aws.RuntimeEnvironment{
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EnvironmentIdentifier: aws.ExecutionEnvironmentID(os.Getenv(execEnvVar)),
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Region: envConfig.Region,
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EC2InstanceMetadataRegion: imdsRegion,
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}, nil
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}
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