Have you implemented CI/CD in a project? Can you explain how CI/CD was implemented and what you did?

In my last project we used GitHub Actions to implement a CI/CD pipeline. The workflow is triggered on every push to the main branch. First, the code is built and unit tests are run in a Docker container. If tests pass, the build artifact (a JAR or Docker image) is pushed to a container registry (Docker Hub or Azure Container Registry). For deployment, we use a separate job that pulls the image and runs it on a Kubernetes cluster via Helm charts. We also have a staging environment where integration tests run against a real database. After manual approval, the same image is promoted to production. We use environment variables and secrets stored in GitHub Secrets to keep credentials safe. The pipeline gives us fast feedback, automated testing, and consistent deployments.