Docker is an open-source platform software used for developing, delivering, and running applications. Docker allows users to isolate applications within the infrastructure, creating smaller units, thus increasing the speed of software delivery.
Docker containers are similar to virtual machines, but they differ fundamentally. Containers virtualize the operating system layer, while virtual machines virtualize hardware, making containers more portable and efficient in utilizing servers.
Docker Installation:#
wget -qO- get.docker.com | bash
systemctl start docker
systemctl enable docker
Docker Compose is part of the Docker orchestration service, allowing users to deploy distributed applications in a cluster. Docker Compose is an "application layer" service where users can define which container group runs which application, supporting dynamic changes to applications and scaling when needed.
Docker-Compose Installation:#
sudo curl -L "https://github.com/docker/compose/releases/download/v2.29.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose