Update Project

Add cron event source

Edit maelstrom.yml and add a cron event source. The full file should look like this:

# example project
---
name: hello-mael
components:
  hello:
    image: docker.io/coopernurse/go-hello-http
    httpport: 8080
    httphealthcheckpath: /
    reservememory: 128
    eventsources:
      hello_http:
        http:
          hostname: hello.localhost
      # cron event source here:
      hello_cron:
        cron:
          schedule: "@every 10s"
          http:
            method: GET
            path: /log

Then re-run maelctl project put

$ /usr/local/bin/maelctl project put

Or via docker:

docker exec maelstromd maelctl project put

Wait 10 seconds..

We just told maelstromd to make a GET request to /log on this component every 10 seconds.

If the component is not already running maelstromd will start it.

Watch the logs

Run this to see the logs for the container. The /count endpoint prints the time to STDOUT each time it’s invoked.

$ /usr/local/bin/maelctl logs
[hello-mael_hello]	Current time: 2019-09-17 21:12:11.001191209 +0000 UTC m=+942.075217013
[hello-mael_hello]	Current time: 2019-09-17 21:12:21.001580013 +0000 UTC m=+952.075605806
[hello-mael_hello]	Current time: 2019-09-17 21:12:31.001557084 +0000 UTC m=+962.075582883

Or via docker:

docker exec maelstromd maelctl logs

Next: Remove Project