Deploy Google Cloud with GitHub Actions: Overcoming the “Function Failed to Upload zip File: Could Not Load the Default Credentials” Error

Are you tired of encountering the frustrating “Function Failed to Upload zip File: Could Not Load the Default Credentials” error when trying to deploy your Google Cloud Function using GitHub Actions? You’re not alone! This error can be a real roadblock, but fear not, dear developer, for we’ve got the solution right here.

What’s Causing the Error?

Before we dive into the fix, let’s understand what’s causing this error in the first place. The error message itself is quite cryptic, but essentially, it’s telling us that GitHub Actions can’t find the default credentials to authenticate with Google Cloud.

There are a few possible reasons for this:

• Missing or incorrect Google Cloud credentials in the GitHub Actions workflow
• Incorrectly configured Google Cloud SDK in the GitHub Actions environment
• Invalid or expired credentials

Step 1:(Create a Google Cloud Service Account and Generate Credentials)

To fix this error, we’ll need to create a Google Cloud service account and generate credentials that GitHub Actions can use to authenticate with Google Cloud.

Follow these steps:

1. Log in to the Google Cloud Console and navigate to the Navigation menu (three horizontal lines in the top left corner) and click on IAM & Admin > Service accounts.
2. Click on Create service account and provide a name for your service account.
3. Click on Create and then click on the three vertical dots at the end of the service account row and select Manage keys.
4. Click on Add key > Create a new key and select JSON as the key type.
5. Click on Create and download the JSON key file.

Step 2: Store the Credentials as a GitHub Secret

Now that we have the credentials, we need to store them as a secret in GitHub. This will allow us to securely reference the credentials in our GitHub Actions workflow.

Follow these steps:

1. Go to your GitHub repository and click on Settings > Actions > Secrets.
2. Click on New secret and provide a name for the secret (e.g., GOOGLE_CLOUD_CREDENTIALS).
3. Paste the contents of the JSON key file into the secret value field.
4. Click on Add secret.

Step 3: Configure the Google Cloud SDK in GitHub Actions

Next, we need to configure the Google Cloud SDK in our GitHub Actions environment. We’ll do this by installing the Google Cloud SDK and setting the default credentials using our stored secret.

Add the following code to your GitHub Actions workflow file:

name: Deploy to Google Cloud

on:
  push:
    branches:
      - main

env:
  GOOGLE_CLOUD_PROJECT: ${{ secrets.GOOGLE_CLOUD_PROJECT }}

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Install Google Cloud SDK
        run: |
          sudo apt-get update
          sudo apt-get install google-cloud-sdk -y

      - name: Set default credentials
        run: |
          echo $GOOGLE_CLOUD_CREDENTIALS > ${ HOME }/.gcloud/key.json
          gcloud auth activate-service-account --key-file=${ HOME }/.gcloud/key.json
          gcloud config set project $GOOGLE_CLOUD_PROJECT

Step 4: Deploy Your Google Cloud Function

Now that we’ve configured the Google Cloud SDK and set the default credentials, we can deploy our Google Cloud Function.

Add the following code to your GitHub Actions workflow file:

      - name: Deploy to Google Cloud Functions
        run: |
          gcloud functions deploy my-function --region us-central1 --runtime nodejs14 --trigger-http

Replace my-function with the name of your Google Cloud Function, and us-central1 with the desired region.

Conclusion

That’s it! With these steps, you should be able to deploy your Google Cloud Function using GitHub Actions without encountering the “Function Failed to Upload zip File: Could Not Load the Default Credentials” error.

Remember to update your GitHub Actions workflow file to reference the correct credentials and project settings. If you encounter any issues, double-check your credentials, project settings, and workflow file configuration.

Troubleshooting Tips
Make sure the JSON key file is correctly formatted and stored as a GitHub secret.
Verify that the Google Cloud SDK is correctly installed and configured in the GitHub Actions environment.
Check that the default credentials are correctly set using the stored secret.
Ensure that the Google Cloud Project ID is correctly set in the GitHub Actions workflow file.

By following these steps, you should be able to successfully deploy your Google Cloud Function using GitHub Actions. Happy deploying!

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