https://github.com/axel-op/package-java-aws-lambda

Package a Java AWS Lambda
https://github.com/axel-op/package-java-aws-lambda

aws-lambda aws-lambda-java github-actions maven

Last synced: 10 days ago
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Package a Java AWS Lambda

• Host: GitHub
• URL: https://github.com/axel-op/package-java-aws-lambda
• Owner: axel-op
• License: mit
• Created: 2022-11-13T20:13:45.000Z (almost 2 years ago)
• Default Branch: main
• Last Pushed: 2022-11-14T12:58:12.000Z (almost 2 years ago)
• Last Synced: 2024-10-14T11:46:28.246Z (24 days ago)
• Topics: aws-lambda, aws-lambda-java, github-actions, maven
• Language: Shell
• Homepage:
• Size: 7.81 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Package an AWS Lambda in Java

A GitHub Action to package an AWS Lambda in Java with Maven.

AWS Lambdas in Java [should be packaged as an Uber JAR](https://docs.aws.amazon.com/lambda/latest/dg/java-package.html#java-package-maven).

The [`maven-shade-plugin`](https://maven.apache.org/plugins/maven-shade-plugin) is used to build the Uber JAR. While configuring it in the `pom.xml` is the recommended way to use it, here we execute it from the command line so the `pom.xml` doesn't have to be edited.

## Inputs/Outputs

- The input `working-directory` is optional and indicates where is the root directory of your Lambda function.

- The output `deployment-file` is an absolute path to the JAR that should be deployed (see the example below).

## Example workflow

This GitHub Actions workflow shows how to deploy an AWS Lambda [using the `UpdateFunctionCode` API](https://docs.aws.amazon.com/lambda/latest/dg/API_UpdateFunctionCode.html) with the `aws` CLI:

```yml

name: Example workflow

on:

  push:

    branches:

      - main

jobs:

  deploy-aws-lambda:

    runs-on: ubuntu-latest

    permissions:

      # This is required for requesting GitHub's OIDC Token

      # See https://github.com/aws-actions/configure-aws-credentials

      id-token: write

    env:

      REGION: eu-west-3

      FUNCTION_NAME: name-of-function

    steps:

      - uses: actions/checkout@v3

      - uses: actions/setup-java@v2

        with:

          java-version: 11

          distribution: adopt

      - uses: axel-op/package-java-aws-lambda@main

        id: package

      - name: Configure AWS Credentials

        uses: aws-actions/configure-aws-credentials@v1

        with:

          role-to-assume: ${{ secrets.AWS_ROLE }}

          aws-region: ${{ env.REGION }}

      - name: Deploy on AWS

        env:

          JAR: ${{ steps.package.outputs.deployment-file }}

        run: aws lambda update-function-code --function-name $FUNCTION_NAME --zip-file "fileb://$JAR"

```

The [AWS documentation](https://docs.aws.amazon.com/lambda/latest/dg/lambda-java.html) describes all the possible ways to deploy your function.