Edit a File in a Running Container: a Slim Base Image Case
Can you edit a file in a running container? What if there is no shell?
Focused, hands-on problems for sharpening your DevOps and server-side skills. Some teach specific concepts while others mirror real-world scenarios. Every challenge includes hints, feedback, and automated solution checks.
Can you edit a file in a running container? What if there is no shell?
Can you edit a file in a running Kubernetes pod? What if there is no shell inside and the container's user lacks the write permission?
Not all distroless images are created equal. Can you find the right base image for the application in this challenge?
Learn on practice the limitations of FROM scratch images and the ways to mitigate them.
Be a networking Sherlock Holmes - find out which port a Kubernetes app uses and send a request to it.
Learn how to send a signal to a Kubernetes app running in an unprivileged container without shell.
Learn how to send a signal to a Kubernetes app running in a container without shell.