How to Dockerize Golang App

 

Introduction

Docker allows you to deploy applications quickly by reducing the risk of failure when deploying in multiple environments such as: development, staging and production.

Goals

• We will ceate simple Golang Hello World Application
• We will create Docker Image Golang-Hello-World
• We will run Docker Container from Golang-Hello-World
• Lastly we will access our application in the browser

Prerequisites 

For this tutorial you will need to install

• Install docker in your machine
• https://docs.docker.com/engine/install/

 

 

Create Golang Hello World Application

Create a folder GOHELLO-WORLD > main.go

Our application listen in port 8080

 

 

 

 

In folder GOHELLO-WORLD you should create Dockerfile and then type the syntax

 

 

 

We will create a Docker Image with name gohello-world, go to terminal to folder gohello-world and then type: 

$ docker build -t gohello-world . 

 

 

 

As you can see we already created the Docker Image

$ docker images

 

 

Now we will create a Container from our Image

$ docker container create --name gohello-world-container -p 8181:8080 gohello-world

$ docker container start gohello-world-container

 

 

8181(is Host Port):8080(is Container Port)

 

 

 

We also to make sure our container already running by type:

$ docker container ls

you can see the STATUS (is Up 3 minutes) with port 8181

 

 

 

Access in your browser:

http://localhost:8181

And boom our app already running with docker container ☺

 

 

 

 

Hope you guys like it, Thank you 😊