docker build

Practice docker build from memory. -t myapp:v1 tags the resulting image; . is the build context (sent to the daemon). Add --no-cache to force fresh layers.

Build a Docker image from the Dockerfile in the current directory and tag it myapp:v1.

docker build -t myapp:v1 .

-t myapp:v1 tags the resulting image; . is the build context (sent to the daemon). Add --no-cache to force fresh layers.

Safety: Inspect state before stopping, pruning, or changing running containers.

Build the habit: DockerDrill drills docker build and the rest of the Docker workflow until the safe first move is automatic. Try a Docker drill.