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Automated Deploys

It’s fairly straightforward to setup automation for deploying your code to Beam. At a high level, the following steps are all you need:

pip3 install --upgrade pip
pip3 install beam-client
beam configure default --token $BEAM_TOKEN
beam deploy file.py:function

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Example: Github Actions

You can setup a Github workflow to deploy your code whenever a new commit is made to your Git repo.

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Setup Environment Variables

First, add your BEAM_TOKEN to your Github Secrets:

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Create Actions file

For a detailed walk-through of this step, Github’s documentation is the best resource.

  1. Create a directory called .github/workflows in your project.
  2. In the .github/workflows directory, create a file named beam-actions.yml

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Deploying to Different Environments

You might want to setup separate Beam apps for your staging or prod environments.

In your Beam app, you can setup your app name to dynamically update based on the Github branch you’ve deployed to. BEAM_DEPLOY_ENV will get set in our Github Actions script, based on the branch name:

app.py
from beam import endpoint
import os

@endpoint(name=f'app-{os.getenv("BEAM_DEPLOY_ENV", "staging")}')
def handler():
  return {}

If you push to the main branch, the app app-prod will be deployed. If you push to the staging branch, app-staging will be deployed. You can customize this with your own branch names.

Here’s what the Github Action looks like. Make sure you’ve added a BEAM_TOKEN to your Github Secrets:

beam-actions.yml
name: Deploy to Beam

on:
  push:
    branches:
      - main
      - staging

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      - name: Set environment variables
        run: |
          if [[ "${{ github.ref }}" == 'refs/heads/main' ]]; then
            echo "Setting environment variables: PROD"
            echo "BEAM_DEPLOY_ENV=prod" >> $GITHUB_ENV
          elif [[ "${{ github.ref }}" == 'refs/heads/staging' ]]; then
            echo "Setting environment variables: STAGING"
            echo "BEAM_DEPLOY_ENV=staging" >> $GITHUB_ENV
          fi

      - name: Authenticate and deploy to Beam
        env:
          BEAM_TOKEN: ${{ secrets.BEAM_TOKEN }}
        run: |
          pip3 install --upgrade pip
          pip3 install beam-client
          pip3 install fastapi

          echo "beam configure default --token $BEAM_TOKEN"
          beam configure default --token $BEAM_TOKEN
          beam deploy app.py:function

When you push to either main or staging, a new app will be deployed for each push:

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