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IP address refers to Internet Protocol address, a numerical value with the syntax 192.168.0.1. IP address uniquely identifies a device connected to a network, and it also helps us access applications running on different devices on the inte...

Before we implement our application, we need to understand the difference between Dockerfile and compose.yaml files. When creating a custom image for our application, we typically use a file called a Dockerfile and docker run run the contai...

Docker Compose has multiple commands that are similar but do completely different things. Some examples are the commands docker compose stop and docker compose down and the commands docker compose start and docker compose up. This article w...

By default, a single network is created by Docker Compose in our application and each container is added there as a service. Every container on the network can be accessed and found by containers on the single network. We can configure our...

If we use a Dockerfile to automatically create containers, we usually use the docker build and run commands. However, we usually combine most of the commands in a single run to tidy up a local image repository. This article discusses combin...

We docker run use the entrypoint ( --entrypoint ) flag in the command to specify the command to be executed when we start the Docker container. This flag allows us to customize the behavior of the container and determine the command that Do...

When creating a Docker image, it is best practice to give it a descriptive and meaningful name. This process makes identifying and managing images more manageable, especially when dealing with many images. This article discusses tagging ima...

Normally, Docker does not delete stopped containers, it only unmarks them. This process occurs to avoid accidental deletion of stopped containers. This article will discuss how to properly remove unused and untagged containers to reclaim re...

This article will demonstrate how to enter the Docker container shell using multiple methods. Use docker exec to enter the Docker container's shell We need to have a container up and running to use this command. We can check the status of t...

Recently, we have seen widespread adoption of Docker as the ultimate containerization platform. Because of this, setting up Docker on all platforms has been greatly simplified, including macOS and Windows. However, some users usually face p...

This article demonstrates how to get the IP address of a Docker container. Connect to the Bridge network and get the IP address of the Docker container One of the big reasons why docker containers are so convenient is that we can easily con...

This article will discuss and demonstrate methods we can use to transfer files from the host to a running container in Docker. docker cp Copy the file from the host to the Docker container using docker cp The command is one of the simplest...

There are different types of communication on the Internet, the most common ones include file transfers, sending emails, and serving web pages. To make this communication possible, we make use of port numbers that help identify the type of...

As we develop our applications, we often make changes or add more features to make the application more effective for the different users who interact with the application. When using Docker, we need to ensure that the changes or features w...

Docker makes it easier for developers to build, test, and deploy applications without worrying about dependencies by packaging them in standardized units called containers. Docker-compose is an advanced, must-have tool for managing multi-co...