Project 2 Template

Initial Set up

The following steps should only need to be done once:

Set Environment Variable

Add the following to your .bash_profile script, or similar for your shell:

# If your ucsb email is [email protected], then YOUR_ACCOUNT_NAME is user
#
# Note: If you have an underscore in your account name, please replace with a hypen.
export CS291_ACCOUNT=YOUR_ACCOUNT_NAME

Install gcloud tool

Follow the instructions here: https://cloud.google.com/sdk/docs/#install_the_latest_cloud_tools_version_cloudsdk_current_version

Authenticate with Google

Make sure you select your @ucsb.edu account when authenticating.

gcloud auth login

Verify the above works

gcloud projects describe cs291a

The above should produce the following output:

createTime: '2020-12-29T18:55:55.506Z'
lifecycleState: ACTIVE
name: cs291a
parent:
  id: '254441457261'
  type: folder
projectId: cs291a
projectNumber: '318955983951'

Create Application Default Credentials

Again, make sure you select your @ucsb.edu account when authenticating.

gcloud auth application-default login

Install Docker

Follow the instructions here: https://www.docker.com/products/docker-desktop

Link Docker and Gcloud

gcloud auth configure-docker us.gcr.io

Develop Locally

The following commands are intended to be run from within the directory containing your project (e.g., your copy of this repository).

Edit your app.rb file however you want then follow the next two steps to test your application:

Build Container

docker build -t us.gcr.io/cs291a/project2_${CS291_ACCOUNT} .

Run Locally

docker run -it --rm \
  -p 3000:3000 \
  -v ~/.config/gcloud/application_default_credentials.json:/root/.config/gcloud/application_default_credentials.json \
  us.gcr.io/cs291a/project2_${CS291_ACCOUNT}

Test Using CURL

curl -D- localhost:3000/

The default application should provide output that looks like the following:

HTTP/1.1 200 OK
Content-Type: text/html;charset=utf-8
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
Content-Length: 12

Hello World

Production Deployment

Each time you want to deploy your application to Google Cloud Run, perform the following two steps:

Push Container to Google Container Registry

docker push us.gcr.io/cs291a/project2_${CS291_ACCOUNT}

Deploy to Google Cloud Run

gcloud beta run deploy \
  --allow-unauthenticated \
  --concurrency 80 \
  --image us.gcr.io/cs291a/project2_${CS291_ACCOUNT} \
  --memory 128Mi \
  --platform managed \
  --project cs291a \
  --region us-central1 \
  --service-account [email protected] \
  --set-env-vars RACK_ENV=production \
  ${CS291_ACCOUNT}

The last line of output should look similar to the following:

Service [{ACCOUNT_NAME}] revision [{ACCOUNT_NAME}-00018] has been deployed and is serving 100 percent of traffic at https://{ACCOUNT_NAME}-66egyap56q-uc.a.run.app

View Logs

1. Browse to: https://console.cloud.google.com/run?project=cs291a

2. Click on the service with your ACCOUNT_NAME

3. Click on "LOGS"

4. Browse logs, and consider changing the filter to "Warning" to find more pressing issues.

Resources

• https://cloud.google.com/run/docs/quickstarts/build-and-deploy
• https://googleapis.dev/ruby/google-cloud-storage/latest/index.html

Possible Errors

invalid reference format

Re-run the export command.