In this article we are going to create a very simple webserver using Golang and Gin-Gonic as its framework. Dockerize our project then push it on docker registery. After all we are going to deploy…

Medium_JS is a curated collection of insights and tutorials on JavaScript development, designed to help developers stay informed and inspired in the ever-evolving world of web development. By featuring a selection of high-quality articles, tutorials, and expert opinions from the JavaScript community, Medium_JS offers  guidance on mastering JavaScript language features, exploring modern frameworks and libraries, and solving common development challenges. Whether you're a frontend developer, a full-stack engineer, or an aspiring JavaScript enthusiast, Medium_JS provides a  knowledge and resources to fuel your JavaScript journey.

Medium

Learn how to deploy a Golang project on Kubernetes using Gin-Gonic as the framework. The post covers the installation of Golang, Docker, and Kubernetes, as well as the creation of a webserver and Dockerizing the project. It also explains how to deploy the project on Kubernetes and access the Minikube dashboard.

How to deploy your Golang project on Kubernetes

I want to bring some advices on the Dockerfile part.
In this example, you are bringing all the golang sdk in your final image, which can be heavy. Futhermore, there is some annotations we can add to the <code>go build</code> command to remove all the debug stuff (that we don’t need in our production binary).
Here is an example of how we can do, and so improve the image size / performance :
<ul>
<li>CGO_ENABLED=0 disables the use of cgo which allows Go to call C libraries, and this flag is set to optimize for static linking.</li>
<li>GOOS=linux sets the target operating system for the binary.</li>
<li>-a forces rebuilding of all packages even if they are up-to-date.</li>
<li>-installsuffix cgo sets a suffix to use in the name of the directory created in $GOPATH/pkg while installing packages.</li>
<li>-x prints the commands as they are executed for debugging purposes.</li>
<li>-ldflags “-s -w” passes flags to the linker, where -s removes the symbol table information and -w strips the DWARF symbols.</li>
<li>-o main . specifies the output file’s name (main) and location (.), which will be generated from the source code present in the current directory.</li>
</ul>
<pre><code class="language-Dockerfile"># build stage
FROM golang:1.20 AS build

ENV GO111MODULE=on

COPY . /app
WORKDIR /app

RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -x -ldflags &quot;-s -w&quot; -o main .

# final stage
FROM alpine:latest

WORKDIR /app/
COPY --from=build /app/main .

# Start the application
ENTRYPOINT [&quot;/app/main&quot;]
</code></pre>