NextJS Azure Web App - error - "didn't respond to HTTP pings on port ..."

Marek Sirkovský 1

Hi,

I have the same problem as described here:

https://learn.microsoft.com/en-us/answers/questions/168746/container-didn39t-respond-to-http-pings-on-port-80.html

Also I have checked the setting of the PORT and by using the SSH I am sure that application in my container is running. I am using:

apt install curl
curl localhost:3000
and curl returns the whole response and status 200.

But the container doesnt start. Sometimes(very rarely) it works but after the restart, it stops working.

Is there any guildline how to find na issue or any settings to fix it? Thank you.

SnehaAgrawal-MSFT 22,706 Reputation points Moderator

2021-04-21T13:09:09.017+00:00

Thanks for asking question! try setting the app setting WEBSITES_PORT to 3000.
Refer to this document link: https://learn.microsoft.com/en-us/azure/app-service/containers/configure-custom-container
possibly your app is starting on port 3000 but the App Service is expecting it on port 8080.

Let us know if issue remains.
Marek Sirkovský 1 Reputation point

2021-04-21T13:58:57.217+00:00

I have set WEBSITES_PORT to 3000.

I can even see the log message:

" Container xxx-xxx-xx-xxx-as_0_2b373b22 didn't respond to HTTP pings on port: 3000, failing site start. See container logs for debugging."

It is weird, because I am able to ping my site when connecting to the container by SSH.

Sidenote:
I have to be quick because after minute or two the container is being restarted.
I understand why, I include this information just for context.
SnehaAgrawal-MSFT 22,706 Reputation points Moderator

2021-04-23T09:52:18.297+00:00

Thanks for reply! If you see that the container didn't start within the expected time limit try adding a WEBSITES_CONTAINER_START_TIME_LIMIT to app setting in order to increase the time (up to a maximum of 1800) we will wait for a successful start.

Reference: https://techcommunity.microsoft.com/t5/apps-on-azure/things-you-should-know-web-apps-and-linux/ba-p/392472#ContainerStart

Also check this link here might helps.

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