Building and Pushing Docker Images without Using Compose

In this tutorial, I will guide you on how to build and push Docker images without relying on docker-compose. Docker is a powerful tool for containerization, and it allows developers to package their applications into portable and isolated containers. While docker-compose is commonly used to define and manage multi-container Docker applications, there are situations where you may prefer to build and push Docker images individually. In this tutorial, I will demonstrate the step-by-step process of building and pushing a Docker image without using Compose.

Step 1: Log in to your Docker registry

To begin, you need to log in to your Docker registry using the docker login command. Replace USERNAME with your Docker registry username and PASSWORD with your password. For example:

docker login -u USERNAME -p PASSWORD harbor.yoursite.com

Step 2: Build the Docker image

Next, you will build the Docker image using the docker build command. Make sure you are in the directory where your Dockerfile is located. Replace harbor.yoursite.com/library/your_service_api with the desired image name and tag. For instance:

docker build -t harbor.yoursite.com/library/your_service_api -f docker/Dockerfile .

Step 3: Push the Docker image

Once the image is built successfully, you can push it to your Docker registry using the docker push command. This will make the image accessible to other users or systems. Replace harbor.yoursite.com/library/your_service_api with the image name and tag you used in the previous step. For example:

docker push harbor.yoursite.com/library/your_service_api

By following these steps, you can efficiently package and distribute your applications using Docker. Whether you prefer to use Compose or build and push images individually, Docker provides flexibility and scalability for your containerized applications. Experiment with different approaches and choose the one that best suits your needs.