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Docker Compose vs Vagrant: What are the differences?
Introduction
Docker Compose and Vagrant are both popular tools used in the software development and deployment process. While they serve similar purposes, there are key differences between the two. In this article, we will outline the top six differences between Docker Compose and Vagrant.
Deployment Approach: Docker Compose is a tool that creates and manages multi-container Docker applications, allowing for orchestrated deployment of services. It focuses on containerization and allows developers to define the composition of services in a docker-compose.yml file. On the other hand, Vagrant is a tool for creating and managing development environments, which includes provisioning virtual machines rather than containers.
Resource Utilization: Docker Compose leverages containerization to achieve efficient resource utilization. Containers are lightweight and share the host system's kernel, leading to better resource usage and faster startup times. Vagrant, however, creates more heavyweight virtual machines that require more resources in terms of memory and storage.
Isolation: Docker Compose provides a higher level of isolation between services by running them in separate containers while allowing them to communicate with each other. This ensures that changes in one service do not affect the others. Vagrant, on the other hand, provides isolated development environments in the form of virtual machines, which have a higher degree of isolation compared to containers.
Portability: Docker Compose promotes portability by encapsulating the application and its dependencies into containers. This allows developers to build and ship a consistent runtime environment across different machines and platforms. Vagrant also promotes portability, but at the level of virtual machines, which can be easily replicated and shared across different development environments.
Performance: Docker Compose, due to its reliance on containers, offers faster startup times and better performance compared to Vagrant, which requires the booting of virtual machines. Containers have lower overhead and share the host system's resources, resulting in quicker initialization and better overall performance.
Ecosystem and Community: Docker Compose is part of the broader Docker ecosystem, which is widely adopted and supported by a large community. This means that developers can benefit from a vast array of pre-built Docker images and community-driven tools. Vagrant, while also having a significant user base, has a more focused community around virtual machine management and provisioning.
In summary, Docker Compose and Vagrant differ in their deployment approach, resource utilization, isolation level, portability, performance, and ecosystem. Docker Compose focuses on containerization and service orchestration, offering better resource utilization and performance, while Vagrant specializes in creating and managing development environments using virtual machines, providing a higher level of isolation and a focused community around virtual machine management.
Pros of Docker Compose
- Multi-container descriptor123
- Fast development environment setup110
- Easy linking of containers79
- Simple yaml configuration68
- Easy setup60
- Yml or yaml format16
- Use Standard Docker API12
- Open source8
- Go from template to application in minutes5
- Can choose Discovery Backend5
- Scalable4
- Easy configuration4
- Kubernetes integration4
- Quick and easy3
Pros of Vagrant
- Development environments352
- Simple bootstraping290
- Free237
- Boxes139
- Provisioning130
- Portable84
- Synced folders81
- Reproducible69
- Ssh51
- Very flexible44
- Works well, can be replicated easily with other devs5
- Easy-to-share, easy-to-version dev configuration5
- Great3
- Just works3
- Quick way to get running2
- DRY - "Do Not Repeat Yourself"1
- Container Friendly1
- What is vagrant?1
- Good documentation1
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Cons of Docker Compose
- Tied to single machine9
- Still very volatile, changing syntax often5
Cons of Vagrant
- Can become v complex w prod. provisioner (Salt, etc.)2
- Multiple VMs quickly eat up disk space2
- Development environment that kills your battery1