Exercise 1: Go Packages and Functions

Let’s practice what we’ve learned so far in the following exercise. The solution to this exercise has been provided in the next lesson.

Problem

Use GitLab CI/CD to push Docker images to Docker Hub.

General instructions

Here are the general steps to use GitLab CI/CD to push Docker images to Docker Hub:

• Set up a GitLab repository: Create a new repository or use an existing one on GitLab.

• Create a Dockerfile: Create a Dockerfile in the root of your repository. The Dockerfile contains instructions for building your Docker image.

• Configure GitLab CI/CD pipeline: Create a .gitlab-ci.yml file in the root of your repository. This file defines the CI/CD pipeline for your project, including the stages and jobs to be executed. You must use the docker:stable base image in the .gitlab-ci.yml file so that Docker can run on a machine that is allocated for Gitlab CI/CD. You will also need to add the services section in the .gitlab-ci.yml file so that the machine can know that what is the name of the Docker service that is running.

• Define a build job: Set up a job in the CI/CD pipeline to build the Docker image using the Dockerfile. This job should use the appropriate Docker commands, such as ...