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One of the top programming languages chosen by programmers for creating web application projects is Golang. For at least the next two decades, web apps will dominate the development market. Every company wants to use its website to generate revenue from the sale of goods and/or services to clients. Because of this, businesses never skimp on the cutting-edge tools and techniques that help them succeed. However, compared to other languages, the deployment process for Golang web development is a little different. The rationale behind Docker’s utilisation as well as the specifics of its deployment process must be understood by Golang developers. We will concentrate on every tiny detail that will aid developers in understanding in this article.

Why does Golang web applications need docker?

Simple binaries are the norm for Golang web applications, which is bad for any web application. Simple binaries can cause Golang web applications to function correctly during development but not correctly throughout production, which is bad for customers and any business. However, Docker solves this issue by guaranteeing identical settings for both development and production. As opposed to Golang web apps, Docker helps maintain web templates and configuration files up to date with the binary. Docker prevents significant problems faced by teams during development due to a suitable and consistent development setup. Teams are better able to concentrate on important aspects of the Golang web development process, which boosts productivity and quality.

Golang web development step-by-step deployment process:

Every developer should have a basic understanding of Docker, Golang foundations, and the steps involved in creating Golang web applications before learning about the deployment process for Golang web apps with Docker. Make sure Docker is set up on your computer and that you have a registered account with the Docker registry. If you do not already have an account, create one now to begin the detailed process described below.

• Write HTTP server in Golang:

Writing an HTTP server file, which aids in Docker deployment of the Golang web application, is extremely straightforward. It aids in the web application’s packaging into a Docker container. These days, it’s even simpler because reference code files can be found on the GitHub open source platform, and you may construct the HTTP server file with ease thanks to the knowledge of Golang web development consultants.

• Write a Dockerfile for Docker Build:

The following step is to create a Dockerfile, which is a file containing all the commands used to create Docker images. For creating Docker images for installation, you must create a Docker file. Run the Go HTTP server in the Docker container after installation. When you run the command “docker build,” you can construct a Docker image by reading the instructions that are given on the console. The following is what a Docker file looks like:

From Golang:latest

ADD . /go/src/github.com/agiratech/contact_registry

# Build the contact_registry command inside the container.

RUN go install github.com/agiratech/contact_registry

# Run a contact_registry command when the container starts.

ENTRYPOINT /go/bin/contact_registry

# http server listens on port 8080.

EXPOSE 8080

When using the image for deployment, it is advised to keep the binary files there rather than in the source files. New Golang developers have trouble comprehending each component. But thankfully, they can comprehend and get their questions answered owing to the Golang support community and its documentation.

• Building docker image:

Use the command listed below to create the image after creating the dockerfile, which is required to create Docker images:

            Docker build -t brain fuel/contact registry with sudo for $.

The Docker file’s instructions are read by this command. Let’s examine each command in greater detail: The most recent Golang image is retrieved from the Docker hub by the FROM line. The Golang image’s Gopath is expanded by the ADD command to include package source. The Go package is created by the “RUN” command. The “entrypoint” command makes it possible for the Docker container’s Golang-docker command to be run at its default starting point. Port 8080 is used by “EXPOSE” as the HTTP server. The output is then identified as a Docker image.

• Run and test the docker image:

Use the command below to launch the Docker image once it is prepared. Never overlook adding an external port to port 8080 of the container.

            $ sudo docker run -p 5050:8080 –rm brain fuel/contact_registry 

                                     (or)

             $ sudo docker run -publish 5050:8080 -name go web –rm brain fuel/contact_registry 

• In the above command, 5050 is the external port. 
• docker run- runs the container from the docker image. 
• –rm command is used for cleaning the container once it is shut down.
• -p:5050:8080 enables the container to get access at port 5050. (Here p stands for publishing)
• -name web is the name given to the container for reference.

After executing one of the two instructions, you can check to see if the Docker image is running by going to https://localhost:5050/ in your web browser. The following URL will take you to the Golang web application. When you execute the command, a Golang web application is opened for deployment. This is because many different tools, like Kubernetes, self-hosted, PaaS, and Heroku, may run Docker containers. Select the tool that is most appropriate for your Golang web development tasks.

Conclusion:

Docker is a great tool for Golang web apps since it addresses many of the primary problems that arise during the development process. Businesses who implement Docker in Golang web applications have an edge over rivals in the market. When working with clients or creating their corporate web apps, the majority of organisations rely on the huge knowledge and competence of Golang web development companies or consultants.

About Us:

The Golang web development team at Lucidpath is a one-stop shop for creating high-quality web apps. Any organisation may easily and successfully finish any Golang web projects with the assistance of the services provided by the Golang expert professionals at Lucidpath.