Use Containers

Use Containers

Let us go with a devops-first approach:

Our smallest experiments, no matter how trivial, will be closest to production best practices!

Note: Even without the video, you can learn all the crucial details from the steps that are documented below

https://youtu.be/u1CG-ujpnWkyoutu.be

1. Login to your cloud-box over ssh.

   • Create it if you haven't done so already.

   • This will be a robust environment for learning.

2. To start with a clean environment, run:

   mkdir -p ~/workspace && \
   cd ~/workspace && \
   rm -rf loopback-zero-to-hero && \
   mkdir -p ~/workspace/loopback-zero-to-hero && \
   cd ~/workspace/loopback-zero-to-hero

3. Setup your IDE to work with the remote directory on the cloud-box.

   1. Create New Project named loopback-zero-to-hero

   2. For Deployment Path use /root/workspace/loopback-zero-to-hero

4. In your IDE, create a Dockerfile with the following content:

   # Use latest version 4.x of NodeJS
   # https://hub.docker.com/_/node/
   FROM node:4
   
   # install some useful tools
   RUN apt-get -y update
   RUN apt-get install -y tree
   RUN apt-get install -y vim
   
   # configure terminal access
   # https://github.com/dockerfile/mariadb/issues/3
   ENV TERM=xterm
   
   # configure envirnoment to work with tools used for tailing
   # https://github.com/jfrazelle/dockerfiles/issues/12
   ENV DEBIAN_FRONTEND=noninteractive
   RUN apt-get install -y less
   
   RUN mkdir -p /apps/loopback-zero-to-hero
   WORKDIR /apps/loopback-zero-to-hero

5. Create a docker-compose.yml file to install and run a reasonably up to date version of NodeJS:

   version: '2'
   services:
     loopback-zero-to-hero:
       build:
         context: ./
       ports:
         - "3000:3000"
       volumes:
         - ~/workspace/loopback-zero-to-hero:/apps/loopback-zero-to-hero

6. Start the service: docker-compose up and after it finishes running, you should see something like the following at the very end:

   WARNING: Image for service loopback-zero-to-hero was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
   Creating loopbackzerotohero_loopback-zero-to-hero_1
   Attaching to loopbackzerotohero_loopback-zero-to-hero_1
   loopbackzerotohero_loopback-zero-to-hero_1 exited with code 0