Docker Swarm VS Docker Compose

Docker - A containerization platform that allows developers to package applications and their dependencies into containers. Docker Compose can be used to define multi-container application stacks, including web servers, databases, and other services. Features powerful portability and consistency, supports rapid building, sharing, and container management, suitable for complex application architectures, and requires a learning curve.

This article wanted to be a brief and gentle introduction to the container and docker world, there is a lot more to learn so don’t hesitate to check the docker documentation.

It appears they have since reverted the decision but it used to require logging in:

https://github.com/docker/docs/issues/6910

Docker Documentation

Docker is a tool that can help the developer to run each dependency in containers. Find more about Docker at Docker Official.

According to Docker Docs, a Dockerfile is a text document that contains all the instructions a user could call on the command line to assemble an image. These instructions include actions like installing software, copying files, setting environment variables, and defining how an application should run.

Hello reader, it's Sourab here. Recently in one of my projects I used Docker and Nginx for deploying a React App to a front-end server. Let's see how I did it.

If you want to learn more about Docker, check out the official Docker docs.

Learn more about Docker with the documentation.

“Compose simplifies the control of your entire application stack, making it easy to manage services, networks, and volumes in a single, comprehensible YAML configuration file. Then, with a single command, you create and start all the services from your configuration file.” - Docker documentation

curl -fsSL https://get.docker.com -o get-docker.sh sudo sh get-docker.sh # Install docker compose sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose # Apply executable permissions to the binary sudo chmod +x /usr/local/bin/docker-compose # Run Project docker-compose up -d

Docker,

This foundation now opens the door to even more powerful concepts. You can explore more advanced concepts such as container networking, streamlining the management of complex applications with Docker Compose, and how to make your application data persistent using volumes.

In many projects that are containerized, especially in cases where development is also done locally with docker-compose, teams often have two Dockerfiles, 1 for Development, the other for Production. If you happen to have multiple environments like pre-prod, staging and so on, some teams could have different Dockerfiles for these environments.

sudo curl -L "https://github.com/docker/compose/releases/latest/download/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

You can also use Docker Compose to deploy the cluster, without having to write all the previous commands.

[ec2-user]$ sudo yum update -y [ec2-user]$ sudo yum install -y docker [ec2-user]$ sudo service docker start [ec2-user]$ sudo curl -L https://github.com/docker/compose/releases/latest/download/docker-compose-$(uname -s)-$(uname -m) -o /usr/local/bin/docker-compose [ec2-user]$ sudo chmod +x /usr/local/bin/docker-compose [ec2-user]$ docker --version Docker version 20.10.23, build 7155243 [ec2-user]$ docker-compose --version Docker Compose version v2.18.1

Docker Compose Documentation

groupadd -g 997 docker gpasswd -a jenkins docker curl -L https://github.com/docker/compose/releases/tag/1.29.2/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose chmod +x /usr/local/bin/docker-compose #confirm the docker-compose is installed docker-compose version