How to deploy the openstatus probe to Cloudflare Containers

In this guide we will show you how to deploy the OpenStatus probe to Cloudflare Containers.

Cloudflare Containers is a platform that allows you to run serverless containers in the Cloudflare network.

Cloudflare containers automatically scales down after a given time. We will push a cron worker that will keep our container alive and running on Cloudflare Containers platform.

The code showcased in this guide is available on GitHub

Requirements

• A Cloudflare Account.
• An openstatus Account.

Create a private location on OpenStatus

1. Go to the OpenStatus dashboard.
2. Click on the Private locations in the sidebar.
3. Click on the Create Private Location button.
4. Give it a human readable name.
5. Save token.
6. Click submit to save the newly created private location.

Create a Cloudflare Container

1. Create a new cloudflare workers container template using the following command:

pnpm create cloudflare@latest --template=cloudflare/templates/containers-template

2. Fetch openstatus private location image from Docker Hub, we need to specify the platform to linux/amd64 because Cloudflare Containers currently only supports amd64 architecture.:

docker docker pull --platform linux/amd64 ghcr.io/openstatushq/private-location:latest

3. Tag the image, be aware we cannot use the latest tag on Cloudflare Containers:

docker tag ghcr.io/openstatushq/private-location:latest openstatus-private-location:v1

4. Push the image to Cloudflare Container Registry:

pnpm wrangler containers push openstatus-private-location:v1

5. Update the wrangler.toml file to use the pushed image:

[containers]
    image = "registry.cloudflare.com/GENERATED_ID/openstatus-private-location:cf-1"

6. Update the worker to use a cron trigger to keep the container alive, add the following to your wrangler.toml file:

triggers = { cron = ["*/2 * * * *"] }

7. Update the index.ts file to run a simple command to keep the container alive:

sleepAfter = "150s";

and

async scheduled(_controller: any, env: Env) {
  try {
    const container = getContainer(env.MY_CONTAINER);
    await container.start({
      envVars: {
        OPENSTATUS_KEY: env.OPENSTATUS_KEY,
      },
    });
  } catch (e) {
    console.error("Error in scheduled task:", e);
  }

  return new Response("ok");
},

9. Add you OpenStatus API secret

pnpm wrangler secret put OPENSTATUS_KEY

10. Deploy the container to Cloudflare Containers:

pnpm wrangler deploy

Conclusion

You have successfully deployed the openstatus private location probe to Cloudflare Containers. Thus you can monitor your endpoint from Cloudflare’s global network.