Docker Tag, Containers and Kubernetes Pods

Internal

• Docker Concepts - Tag

Overview

Containers executed by Docker behave differently in respect to tag resolution than the same containers executed from a Kubernetes pod.

We create a "color:latest" container that serves "blue" and push it on Docker Hub.

Dockerfile:

FROM busybox
CMD echo "I am blue"

docker build -t docker.io/ovidiufeodorov/color:latest .
docker push ovidiufeodorov/color