Kubernetes and Docker are not competing technologies. In fact, they actually complement one another to get the best out of both.
Quick difference between them as below
Docker
- Containers, isolated environment for application
- Automated building and deploying applications - CI
- Container platform for configuring, building and distributing containers
Kubernetes
- Infrastructure for managing multiple containers
- Automated scheduling and management of application containers
- Ecosystem of managing a cluster of Docker containers
