I created a functionapp using a container image - how do I see the container logs?

c.lashley 6

I've used az fuctionapp create .... --deployment-container-image-name <image> to deploy my container as a azure function

How do I see the container logs?

If I run this container locally I see them with docker logs ...

If I deploy this image as a container instance I can see them with az container logs ...

I can't find them using the Azure Function commands.

Thank you

1 answer

Mike Urnun 9,811 Reputation points Microsoft Employee

2020-09-17T06:56:37.25+00:00

Hi @c.lashley - Docker logs can be found at: https://<app_name>.scm.azurewebsites.net/api/logs/docker You might also check out the logs in: https://<app_name>.scm.azurewebsites.net/api/logstream Are you on Premium or App Service Plan tier?
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c.lashley 6 Reputation points

2020-09-17T15:22:56.75+00:00

Thank you for your help!

The logstream only seems to capture logs that happen while I'm watching. Will the other URLshow all the container logging?

I have a python app inside my docker container and I want to see, for example, the URL of the DB I'm connecting to. This is only logged when my application starts. How do I set up my Function so that I capture this, and refer back to it if need be.

I am on the Basic Service Plan.

Mike Urnun 9,811 Reputation points Microsoft Employee

2020-09-17T19:09:04.327+00:00

@c.lashley Okay, in that case where you want to see logs from your runtime, you can use the App Insights integration as described in the following documentation: Monitor Azure Functions Specifically, in your code where you establish DB connection, you can add a logging statement and the logs will be captured to the App Insights.
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