#dockerizeapp

[ittechnicalandnontechnical]

‘Hello, World!’ Application: How to Dockerize Golang Application

Do you find getting started with Docker intimidating? Do you want to take the first step and successfully dockerize golang application? Are you having trouble finding a basic step-by-step tutorial to dockerize golang application? All these questions and just one answer – If yes, you’ve chosen the correct tutorial!

The purpose of this tutorial is to get your hands on Docker for the starters. In this guideline, we will build a ‘Hello, World’ application and follow simple steps to dockerize the golang app. Without further ado, let’s get started with our tutorial.

Prerequisites to Dockerize Golang Application

Before building the application, make sure your system is installed with docker and golang. If not, then visit the links below to install. ⦿ Install Docker ⦿ Install Golang

Project Setup

First of all, let’s create the main.go file and initialize the application using the command go mod init

Our project structure will look like this-

sample-dockerize-app |– main.go |– Dockerfile

Create a Docker Image

As the Docker documentation says-

An image includes everything needed to run an application- the code or binary, runtimes, dependencies, and any other filesystem objects required.

An image consists of your app definition and everything needed to run the application in the simplest terms.

For creating a docker image, you need to write steps in the config file. The conventional and most preferred file name is Dockerfile, but you can use any name of your choice. However, in my opinion, it’s always better to follow standards.

Read More: How to Build and Run Docker Image