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How to Migrate From Docker Compose to Kubernetes
Move your services from docker-compose files to Kubernetes resources and deploy them
Docker Compose is a great tool that can be used to manage Docker container creations and deployment in development environments. However, it is not the best option for deploying containers into production environments because it lacks a lot of features that are needed for production deployment, such as building container clusters to support high availability of the containers and supporting zero-downtime deployment.
On the other hand, container orchestrators such as Marathon, Nomad, Docker Swarm, and Kubernetes are built to manage container deployments in production environments. These systems are built to handle:
- A large number of microservices running in containers.
- Hosting services in a highly available mode using clusters and service replications.
- Auto-recovery of services, service discovery, resource management, and many more features.
Choosing one of these tools to manage production environments is a must if you would like to host highly available and reliable services and avoid service downtime.
This article will describe step by step the migration process from Docker Compose to Kubernetes.
The Docker Compose File
The gist below contains the definition of three services (MySQL, Rails back-end, and Nginx reverse proxy services) that can be deployed by simply using the command below:
$> docker-compose up -dWe will use the Compose file above and try to migrate the defined services to Kubernetes objects and deploy them in a Kubernetes cluster.
Kubernetes Overview
Kubernetes is one of the well-known container orchestrators that is heavily used by a lot of individuals and companies around the world. It was…
