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Chris Kilding authored and Chris Kilding committed Apr 17, 2019
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30 changes: 30 additions & 0 deletions .gitignore
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# Compiled class file
*.class

# Log file
*.log

# BlueJ files
*.ctxt

# Mobile Tools for Java (J2ME)
.mtj.tmp/

# Package Files #
*.jar
*.war
*.ear
*.zip
*.tar.gz
*.rar

# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
hs_err_pid*

# Others

.DS_Store
.idea
*.iml
target/
Messages.properties
1 change: 1 addition & 0 deletions Jenkinsfile
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buildPlugin()
21 changes: 21 additions & 0 deletions LICENSE
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MIT License

Copyright (c) 2019 Chris Kilding

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
132 changes: 132 additions & 0 deletions README.md
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# AWS Secrets Manager Credentials Provider Plugin

Access credentials from AWS Secrets Manager in your Jenkins jobs. (Specify shared secrets once in your AWS account, use them from Jenkins.)

Features:

- Read-only view of Secrets Manager.
- Credential metadata caching (duration: 5 minutes).
- Jenkins [Configuration As Code](https://github.com/jenkinsci/configuration-as-code-plugin) support.

Settings:

- Filters
- Filter secrets by tag
- Endpoint Configuration
- Service Endpoint
- Signing Region

## Setup

### Jenkins

Install and configure the plugin.

```bash
curl -s -o /var/lib/jenkins/plugins/aws-secrets-manager-credentials-provider.hpi https://example.com/aws-secrets-manager-credentials-provider.hpi
```

### AWS IAM

Give Jenkins an [IAM policy](https://docs.aws.amazon.com/secretsmanager/latest/userguide/auth-and-access_identity-based-policies.html) with read access to AWS Secrets Manager.

Required permissions:

- `secretsmanager:GetSecretValue` (resource: `*`)
- `secretsmanager:ListSecrets`

Optional permissions:

- `kms:Decrypt` (if you use a customer-managed AWS KMS key to encrypt the secret)

## Usage

### AWS Secrets Manager

Upload secrets to AWS Secrets Manager in the format "1 secret value = 1 AWS Secret" (see [documentation](https://docs.aws.amazon.com/cli/latest/reference/secretsmanager/create-secret.html)).

Text:

```bash
aws secretsmanager create-secret --name 'newrelic-token' --description 'Acme Corp Newrelic API token' --secret-string 'abc123'
```

Username + Password:

```bash
aws secretsmanager create-secret --name 'artifactory-username' --description 'Acme Corp Artifactory username' --secret-string 'joe'
aws secretsmanager create-secret --name 'artifactory-password' --description 'Acme Corp Artifactory password' --secret-string 'supersecret'
```

SSH key:

```bash
ssh-keygen -t rsa -b 4096 -C '[email protected]' -f id_rsa
aws secretsmanager create-secret --name 'ssh-key' --description 'Acme Corp SSH key' --secret-string 'file://id_rsa'
```

### Jenkinsfile

Reference a secret in Secrets Manager by its name in a build job:

```groovy
pipeline {
environment {
ARTIFACTORY_USERNAME = credentials("artifactory-username")
ARTIFACTORY_PASSWORD = credentials("artifactory-password")
}
stages {
stage("Deploy") {
sh "mvn deploy"
}
}
}
```

## Configuration

The plugin's default behavior requires **no configuration**.

Customise the plugin using the Web UI or [Jenkins Configuration As Code](https://github.com/jenkinsci/configuration-as-code-plugin).

```yaml
unclassified:
awsCredentialsProvider:
filters:
tag:
key: product
value: roadrunner
endpointConfiguration:
serviceEndpoint: http://localhost:4584
signingRegion: us-east-1
```
## Bugs
- All secrets must be uploaded via the AWS CLI or API. This is because the AWS Web console *currently* insists on wrapping your secret string in JSON.
- All secrets must be in "secret string" format (not "secret binary") as Jenkins will parse them into (UTF-8) string credentials. You can base64 encode a binary secret to work around this.
## Development
Dependencies:
- Java 8
- Maven
- Moto (a specific fork with `ListSecrets` support: <https://github.com/chriskilding/moto/tree/feature/secretsmanager-listsecrets>)

Setup:

- Install the Moto fork to your system with `pip`.
- Ensure that `moto_server` is on your `PATH` (the command `moto_server -p 4584` should launch the forked code in standalone server mode).

Test:

```bash
mvn verify
```

## Screenshots

AWS Secrets Manager secrets listed in the Jenkins credentials screen:

![Credentials screen](docs/img/plugin.png)
48 changes: 48 additions & 0 deletions docs/examples/iam.md
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# Examples: IAM

Typical Secrets Manager IAM policies and customisations for use with this Jenkins plugin.

## Default

The default policy:

```json
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "secretsmanager:GetSecretValue",
"Resource": "*"
},
{
"Effect": "Allow",
"Action": "secretsmanager:ListSecrets"
}
]
}
```

## Restrict to specific secret

Restrict access to a specific secret like this:

```json
{
"Effect": "Allow",
"Action": "secretsmanager:GetSecretValue",
"Resource": "arn:aws:secretsmanager:<region>:<account-id>:secret:<secret-name>"
}
```

## Restrict to specific secret namespace

Restrict access to a namespace of secrets like this:

```json
{
"Effect": "Allow",
"Action": "secretsmanager:GetSecretValue",
"Resource": "arn:aws:secretsmanager:<region>:<account-id>:secret:<namespace>/*"
}
```
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