Dockerize

This is a quick project to whip up a dockerized container for a friend in both Dockerfile and docker-compose.yml.

The Node.js app starts on port 3000 in the container and is mapped to port 3001 on the host.

Scripts

In the scripts/ directory, the following scripts exist:

dockerup.sh - uses docker-compose.yml which uses Dockerfile to build an image. See docker-compose.yml.orig to show how to create a docker container without the Dockerfile.
dockerbuild.sh - uses Dockerfile to build an image
dockerdel.sh - removes images with the name
dockerrun.sh - runs the docker image in detached mode
dockershell.sh - runs the docker image and executes bash inside the shell

The aforementioned scripts should be run in root directory of the repo or the docker files will not be found. See below in the Usage section.

Usage

Build

$ ./scripts/dockerup.sh
Recreating docker_node_1 ... done

Hit on Linux

$ curl localhost:3001
BALLS

Hit on OSX

On OSX, I used the Docker tutorial by Marcin Pilśniak and learned that you cannot use localhost to hit the app. Instead, docker-machine runs docker containers on a separate IP.

Run this command to find the IP

$ docker-machine ip default
192.168.64.2
$ curl localhost:3001
curl: (7) Failed to connect to localhost port 3001: Connection refused
$ curl 192.168.64.2:3001
BALLS

Linting

$ npm i
$ ./node_modules/.bin/dockerlint

INFO: Dockerfile is OK.