# Using Amazon CodePipeline to deploy with Amazon SAM
<a name="deploying-using-codepipeline"></a>

To configure your [Amazon CodePipeline](https://docs.amazonaws.cn/codepipeline/latest/userguide/welcome.html) pipeline to automate the build and deployment of your Amazon SAM application, your Amazon CloudFormation template and `buildspec.yml` file must contain lines that do the following:

1. Reference a build container image with the necessary runtime from the available images. The following example uses the `public.ecr.aws/sam/build-nodejs20.x` build container image.

1. Configure the pipeline stages to run the necessary Amazon SAM command line interface (CLI) commands. The following example runs two Amazon SAM CLI commands: **sam build** and **sam deploy** (with necessary options).

This example assumes that you have declared all functions and layers in your Amazon SAM template file with `runtime: nodejs20.x`.

**Amazon CloudFormation template snippet:**

```
  CodeBuildProject:
    Type: AWS::CodeBuild::Project
    Properties:
      Environment:
        ComputeType: BUILD_GENERAL1_SMALL
        Image: public.ecr.aws/sam/build-nodejs20.x
        Type: LINUX_CONTAINER
      ...
```

**`buildspec.yml` snippet:**

```
version: 0.2
phases:
  build:
    commands:
      - sam build
      - sam deploy --no-confirm-changeset --no-fail-on-empty-changeset
```

For a list of available Amazon Elastic Container Registry (Amazon ECR) build container images for different runtimes, see [Image repositories for Amazon SAM](serverless-image-repositories.md).