Python Pub/Sub deployed on Cloud Run

using a Pub/Sub push subscription deployed on serverless Cloud Run with Cloud Build ci/cd

Creating a Pub/Sub topic

The sample service is triggered by messages published to a Pub/Sub topic

To create a new Pub/Sub topic, use the command

gcloud pubsub topics create myTopic

app.py will handle the incoming request and proccess the Pub/Sub messages

The service will return HTTP response codes. Success codes, such as HTTP 200 or 204, acknowledge complete processing of the Pub/Sub message. Error codes, such as HTTP 400

Shipping the code

Shipping code with Cloud Build consists of three steps in cloudbuild.yaml which is triggered on a github repo. branch push event (ci/cd)

• Building the docker container image,
• Pushing the container image to Container Registry,
• Deploying the container image to Cloud Run

Create a Pub/Sub subscription

To create a Pub/Sub subscription, use the command

gcloud pubsub subscriptions create mySubscription --topic myTopic \
--ack-deadline=600 \
--push-endpoint=SERVICE-URL/ # 👈SERVICE-URL is the HTTPS URL provided on deploying the service

🎉 Send a Pub/Sub message 🎉

Trying it out by sending a Pub/Sub message to the topic

gcloud pubsub topics publish myTopic --message "My Message"