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s3_require_server_encryption.go

Adds a policy to an S3 bucket.

/* Copyright 2010-2018 Amazon.com, Inc. or its affiliates. All Rights Reserved. This file is licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with the License. A copy of the License is located at http://aws.amazon.com/apache2.0/ This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package main import ( "github.com/aws/aws-sdk-go/aws" "github.com/aws/aws-sdk-go/aws/session" "github.com/aws/aws-sdk-go/service/s3" "flag" "fmt" "os" "encoding/json" ) func main() { bucket := "myBucket" // Initialize a session that the SDK uses to load // credentials from the shared credentials file ~/.aws/credentials // and the region from the shard configuration file ~/.aws/config. sess := session.Must(session.NewSessionWithOptions(session.Options{ SharedConfigState: session.SharedConfigEnable, })) svc := s3.New(sess) PolicyDoc := map[string]interface{}{ "Version": "2012-10-17", "Statement": []map[string]interface{}{ { "Sid": "DenyIncorrectEncryptionHeader", "Effect": "Deny", "Principal": "*", "Action": "s3:PutObject", "Resource": "arn:aws:s3:::" + bucket + "/*", "Condition": map[string]interface{}{ "StringNotEquals": map[string]interface{}{ "s3:x-amz-server-side-encryption": "aws:kms", }, }, }, { "Sid": "DenyUnEncryptedObjectUploads", "Effect": "Deny", "Principal": "*", "Action": "s3:PutObject", "Resource": "arn:aws:s3:::" + bucket + "/*", "Condition": map[string]interface{}{ "Null": map[string]interface{}{ "s3:x-amz-server-side-encryption": "true", }, }, }, }, } // Marshal the policy into a JSON value so that it can be sent to S3. policy, err := json.Marshal(PolicyDoc) if err != nil { fmt.Println("Error marshalling policy:") fmt.Println(err.Error()) os.Exit(1) } input := &s3.PutBucketPolicyInput{ Bucket: bucketPtr, Policy: aws.String(string(policy)), } _, err = svc.PutBucketPolicy(input) if err != nil { fmt.Println("Got an error adding policy to bucket " + bucket + ":") fmt.Println(err.Error()) os.Exit(1) } fmt.Println("Set policy for " + bucket) }

Sample Details

Service: s3

Last tested: 2018-03-16

Author: Doug-AWS

Type: full-example

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