is there some sort of API endpoint that we can hit...
# ask-communityc
Constantino Schillebeeckx
02/02/2022, 3:36 PMis there some sort of API endpoint that we can hit which serves as a health check? I'm wondering how I can programmatically check that the agent is healthy
z
Zanie
02/02/2022, 3:53 PM
Yep! The agent hosts a healthcheck API
Zanie
02/02/2022, 3:54 PM
Zanie
02/02/2022, 3:55 PM
Zanie
02/02/2022, 3:55 PM
a
Anna Geller
02/02/2022, 3:58 PM
@Marvin archive “How can I programmatically check whether Prefect agent is healthy?”
m
Marvin
02/02/2022, 3:58 PMc
Constantino Schillebeeckx
02/02/2022, 3:59 PMvery cool 🙂
z
Zanie
02/02/2022, 4:00 PM
Note you can also provide the address via the CLI with
--agent-address TEXTc
Constantino Schillebeeckx
02/02/2022, 4:09 PMCould you give some hints on what the address might be? We have an ECS agent running as a Fargate task.
z
Zanie
02/02/2022, 4:10 PM
The address is empty by default
Zanie
02/02/2022, 4:12 PM
You’ll need to set the environment variable for the config or change the command the task runs.
e.g.
Copy code
prefect agent local start --agent-address <http://0.0.0.0:5000/>Zanie
02/02/2022, 4:12 PM
Copy code
❯ curl <http://localhost:5000/api/health>
{}%c
Constantino Schillebeeckx
02/02/2022, 4:14 PMThat makes sense for the local case; but when my agent is hosted on ECS (as a Fargate task) I imagine I can't just set the address to anything?
z
Zanie
02/02/2022, 4:15 PM
0.0.0.0 binds to all incoming connections so you could then perform a healthcheck at whatever the IP of your task is
Zanie
02/02/2022, 4:16 PM
That’d be determined by AWS networking, which I can’t help you with 🙂 in that case, you can check the agent’s last query time by hitting the server’s GraphqQL API instead
Zanie
02/02/2022, 4:17 PM
e.g.
<https://cloud.prefect.io/api?query={%0Aagent{%0A%20> id%0A%20 last_queried%0A}}c
Constantino Schillebeeckx
02/02/2022, 4:18 PMEven easier! Thanks so much
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