Last active
July 15, 2021 21:43
-
-
Save karlkranich/cd27f8bda64aa9e1cdab6cb52eaafcd8 to your computer and use it in GitHub Desktop.
CloudFormation templates (json and yml) that conditionally include a user and a statement
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| { | |
| "AWSTemplateFormatVersion": "2010-09-09", | |
| "Description": "Bucket policy testing", | |
| "Parameters": { | |
| "ReadWriteUser": { | |
| "Type": "String", | |
| "Default": "", | |
| "Description": "arn of read-write user to add to bucket policy" | |
| }, | |
| "ReadOnlyUser": { | |
| "Type": "String", | |
| "Default": "", | |
| "Description": "arn of read-only user to add to bucket policy" | |
| } | |
| }, | |
| "Conditions": { | |
| "HasReadWriteUser": { | |
| "Fn::Not": [ | |
| { | |
| "Fn::Equals": [ | |
| { | |
| "Ref": "ReadWriteUser" | |
| }, | |
| "" | |
| ] | |
| } | |
| ] | |
| }, | |
| "HasReadOnlyUser": { | |
| "Fn::Not": [ | |
| { | |
| "Fn::Equals": [ | |
| { | |
| "Ref": "ReadOnlyUser" | |
| }, | |
| "" | |
| ] | |
| } | |
| ] | |
| } | |
| }, | |
| "Resources": { | |
| "KwkBucketPolicy": { | |
| "Type": "AWS::S3::BucketPolicy", | |
| "Properties": { | |
| "Bucket": "kwk-bucket-policy-tests", | |
| "PolicyDocument": { | |
| "Version": "2012-10-17", | |
| "Statement": [ | |
| { | |
| "Action": [ | |
| "s3:Get*", | |
| "s3:Put*" | |
| ], | |
| "Effect": "Allow", | |
| "Resource": "arn:aws:s3:::kwk-bucket-policy-tests/*", | |
| "Principal": { | |
| "AWS": [ | |
| "arn:aws:iam::123456789012:user/user1", | |
| { | |
| "Fn::If": [ | |
| "HasReadWriteUser", | |
| { | |
| "Ref": "ReadWriteUser" | |
| }, | |
| { | |
| "Ref": "AWS::NoValue" | |
| } | |
| ] | |
| } | |
| ] | |
| } | |
| }, | |
| { | |
| "Fn::If": [ | |
| "HasReadOnlyUser", | |
| { | |
| "Action": [ | |
| "s3:Get*" | |
| ], | |
| "Effect": "Allow", | |
| "Resource": "arn:aws:s3:::kwk-bucket-policy-tests/*", | |
| "Principal": { | |
| "AWS": { | |
| "Ref": "ReadOnlyUser" | |
| } | |
| } | |
| }, | |
| "Ref": "AWS::NoValue" | |
| ] | |
| } | |
| ] | |
| } | |
| } | |
| } | |
| } | |
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| AWSTemplateFormatVersion: 2010-09-09 | |
| Description: Bucket policy testing | |
| Parameters: | |
| ReadWriteUser: | |
| Type: String | |
| Default: "" | |
| Description: arn of read-write user to add to bucket policy | |
| ReadOnlyUser: | |
| Type: String | |
| Default: "" | |
| Description: arn of read-only user to add to bucket policy | |
| Conditions: | |
| HasReadWriteUser: !Not | |
| - !Equals | |
| - !Ref ReadWriteUser | |
| - "" | |
| HasReadOnlyUser: !Not | |
| - !Equals | |
| - !Ref ReadOnlyUser | |
| - "" | |
| Resources: | |
| KwkBucketPolicy: | |
| Type: "AWS::S3::BucketPolicy" | |
| Properties: | |
| Bucket: kwk-bucket-policy-tests | |
| PolicyDocument: | |
| Version: 2012-10-17 | |
| Statement: | |
| - Action: | |
| - "s3:Get*" | |
| - "s3:Put*" | |
| Effect: Allow | |
| Resource: "arn:aws:s3:::kwk-bucket-policy-tests/*" | |
| Principal: | |
| AWS: | |
| - "arn:aws:iam::123456789012:user/user1" | |
| - !If | |
| - HasReadWriteUser | |
| - !Ref ReadWriteUser | |
| - !Ref "AWS::NoValue" | |
| - !If | |
| - HasReadOnlyUser | |
| - Action: | |
| - "s3:Get*" | |
| Effect: Allow | |
| Resource: "arn:aws:s3:::kwk-bucket-policy-tests/*" | |
| Principal: | |
| AWS: !Ref ReadOnlyUser | |
| - !Ref "AWS::NoValue" |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment