When that completes you will have version 1 of the app in an image stored locally. Now build the Docker image, which uses this Dockerfile to package the source code on top of the official Node.js image: docker image build -tag $dockerId/bb-app:v1 -file bulletin-board-app/Dockerfile. Switch to the v1 source code branch: git checkout v1 The first version of the application uses a single container, running the Node.js application, and the data is only stored on the client’s browser. Mine is sixeyed, so the command I run is export dockerId='sixeyed'.Ĭheck your Docker ID gets displayed when you read the variable: echo $dockerId

Now save your Docker ID in an environment variable - you need to type this command manually with your own Docker ID:īe sure to use your own Docker ID. If you don’t have one, create a free Docker ID at Docker Hub. You need a Docker ID to push your images to Docker Hub. git clone Īnd browse to the source code folder: cd node-bulletin-board This will make a copy of the lab’s repo in a new sub-directory called node-bulletin-board. Use the following command to clone the application source code from GitHub (you can click the command or manually type it). Task 5: Add monitoring and an application dashboard.Task 4: Add a reverse proxy to improve performance.Task 3: Switch to high availability in swarm mode.Task 2: Add a SQL Server database container for storage.Task 1: Run v1 of the app in a container.You’ll use the Docker command line, Docker Compose and Docker swarm for running the app.ĭifficulty: Beginner (assumes no familiarity with Docker) You’ll learn about packaging applications in Docker images, running distributed applications across multiple containers, and adding instrumentation to your containers so you can see the health of your application. You’ll start with a simple app that uses hard-coded data, then add SQL Server for persistent storage, and a proxy to improve web performance. This lab walks through the evolution of a simple Node.js bulletin board application, running on Docker.

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