The Problem:
A user is attempting to run a .NET Core 2.1 application in a Docker container on Google Cloud Functions, but the container fails to start due to a "Default STARTUP TCP probe failed 1 time consecutively" error on port 8080. The application logs indicate that it is listening on port 8080, and the Dockerfile has been provided for reference. Despite waiting for 3 minutes for a response, the Docker container eventually fails. The user seeks assistance in identifying the potential issue within the Docker configuration.
Q&A
How to fix the error "Default STARTUP TCP probe failed 1 time consecutively for container "develop" on port 8080. The instance was not started"?
Add ENV HOST 0.0.0.0 in your Dockerfile.
Why docker failed when the app wait 3 minutes to a response?
Because the TCP probe failed continuously.