# Source: https://docs.snyk.io/developer-tools/snyk-ci-cd-integrations/github-actions-for-snyk-setup-and-checking-for-vulnerabilities/snyk-infrastructure-as-code-action.md

# Snyk Infrastructure as Code action

This page provides instructions for and examples of using the Snyk GitHub Action for [Infrastructure as Code](https://github.com/snyk/actions/tree/master/iac). For general instructions and information, see [GitHub Actions for Snyk setup and checking for vulnerabilities](https://docs.snyk.io/developer-tools/snyk-ci-cd-integrations/github-actions-for-snyk-setup-and-checking-for-vulnerabilities).

In order to use the Snyk Infrastructure as Code Test Action, you must have a Snyk API token. See [Getting your Snyk token](https://docs.snyk.io/developer-tools/snyk-ci-cd-integrations/github-actions-for-snyk-setup-and-checking-for-vulnerabilities/..#getting-your-snyk-token), or you can [sign up for free](https://snyk.io/login).

## Using the Snyk Infrastructure as Code Action to check for vulnerabilities

You can use the Snyk Infrastructure as Code Action to check for vulnerabilities as follows:

```yaml
name: Example workflow for Snyk Infrastructure as Code
on: push
jobs:
  security:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Run Snyk to check Kubernetes manifest file for issues
        uses: snyk/actions/iac@master
        env:
          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
```

## Snyk Infrastructure as Code Action properties

The Snyk Infrastructure as Code Action has properties thatwhich are passed to the underlying image. These are passed to the action using `with`:

| Property  | Default  | Description                                                       |
| --------- | -------- | ----------------------------------------------------------------- |
| `args`    |          | Override the default arguments to the Snyk image.                 |
| `command` | `"test"` | Specify which command to run, currently only `test` is supported. |
| `file`    |          | The paths in which to scan files with issues.                     |
| `json`    | `false`  | In addition to the stdout, save the results as snyk.json          |
| `sarif`   | `true`   | In addition to the stdout, save the results as snyk.sarif         |

## Examples for Snyk Infrastructure as Code Action

### Specifying paths

You can specify the paths to the configuration files and directories to target during the test.\
When no path is specified, the whole repository is scanned by default.

```yaml
name: Example workflow for Snyk Infrastructure as Code
on: push
jobs:
  security:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Run Snyk to check Kubernetes manifest file for issues
        uses: snyk/actions/iac@master
        env:
          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
        with:
          file: your/kubernetes-manifest.yaml your/terraform/directory
```

### Specifying severity threshold

You can also choose to report only on high severity vulnerabilities.

```yaml
name: Example workflow for Snyk Infrastructure as Code
on: push
jobs:
  security:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Run Snyk to check Kubernetes manifest file for issues
        uses: snyk/actions/iac@master
        env:
          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
        with:
          file: your/kubernetes-manifest.yaml
          args: --severity-threshold=high
```

### Sharing test results

You can [share your test results](https://docs.snyk.io/developer-tools/snyk-cli/scan-and-maintain-projects-using-the-cli/snyk-cli-for-iac/share-cli-results-with-the-snyk-web-ui) with the Snyk platform.

```yaml
name: Example workflow for Snyk Infrastructure as Code
on: push
jobs:
  security:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Run Snyk to check Kubernetes manifest file for issues
        uses: snyk/actions/iac@master
        env:
          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
        with:
          args: --report
```

### Specifying scan mode for Terraform Plan

You can also choose the [scan mode](https://docs.snyk.io/snyk-cli/scan-and-maintain-projects-using-the-cli/snyk-cli-for-iac/test-your-iac-files/terraform-files#scan-terraform-plan-output) when scanning Terraform Plan files.

```yaml
name: Example workflow for Snyk Infrastructure as Code
on: push
jobs:
  security:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Run Snyk to check Kubernetes manifest file for issues
        uses: snyk/actions/iac@master
        env:
          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
        with:
          args: --scan=resource-changes
```

## Uploading Snyk scan results to GitHub Code Scanning using the Snyk Infrastructure as Code Action

The Infrastructure as Code Action also supports integrating with GitHub Code Scanning and can show issues in the GitHub Security tab. When the action is run, a `snyk.sarif` file is generated, which can be uploaded to GitHub Code Scanning:

```yaml
name: Snyk Infrastructure as Code
on: push
jobs:
  snyk:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Run Snyk to check configuration files for security issues
        # Snyk can be used to break the build when it detects security issues.
        # In this case we want to upload the issues to GitHub Code Scanning
        continue-on-error: true
        uses: snyk/actions/iac@master
        env:
          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
      - name: Upload result to GitHub Code Scanning
        uses: github/codeql-action/upload-sarif@v3
        with:
          sarif_file: snyk.sarif
```

{% hint style="info" %}
To use the upload-sarif option for private repositories, you must have GitHub Advanced Security.

If you see the error `Advanced Security must be enabled for this repository to use code scanning`, check that GitHub Advanced Security is enabled. For more information, see [Managing security and analysis settings for your repository](https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/enabling-features-for-your-repository/managing-security-and-analysis-settings-for-your-repository).
{% endhint %}

## Related documentation

For more information on how to use the `snyk iac test` command, see the following:

* [Snyk CLI for Infastructure as Code](https://docs.snyk.io/developer-tools/snyk-cli/scan-and-maintain-projects-using-the-cli/snyk-cli-for-iac)
* [Snyk Infrastructure as Code test command](https://docs.snyk.io/developer-tools/snyk-cli/commands/iac-test)