The Watcher, of all Containers

Goal:

• Learn to use Watchtower to update all images running in containers simultaneously

Lessons Learned:

• Create Dockerfile
• Build Dockerfile
• Push image to Docker Hub
• Create Watchtower container
• Update Docker image

SSH & Create the DockerFile:

• After SSH, the DockerFile was created w/around 6 instructions

Build the Dockerfile:

• docker image build -t earpjennings3/lab-watchtower -f Dockerfile .

Create Container:

Create Watchtower Container:

Update Image:

Re-Build the image:

Re-Push Image:

View to see image updating as instructed: