Troubleshooting dependencies
You feel as though you almost understand dependencies in Docker Compose, but a colleague brings you an application that is behaving strangely. Your colleague asks you to review and determine what is causing the error being seen when starting up the application. Your colleague mentions that the application does require redis to work properly.
The compose.yaml file and all necessary images are already available for you.
This exercise is part of the course
Intermediate Docker
Exercise instructions
- Start the application using the proper
docker composecommand. NOTE: It's easier to leave out the-dcommand, but use Ctrl-C to cancel. - Look for any errors in the
workspace-app-1. - Examine the
compose.yamland fix any potential issues. - Restart the application using
docker composeand verify the issue is fixed. (You should receive a message stating at least one successful connection.)
Hands-on interactive exercise
Turn theory into action with one of our interactive exercises
Start Exercise