Convert docker-compose service files to Kubernetes objects.
compose2kube is in the prototype stage and only supports mapping container images, ports, and restart policies to Kubernetes replication controllers. Thanks to the docker/libcompose library, compose2kube will support the complete docker-compose specification in the near future.
go build .
Create a docker-compose.yml file
web:
image: nginx
ports:
- "80"
- "443"
database:
image: postgres
ports:
- "5432"
cache:
image: memcached
ports:
- "11211"
Test the service using the docker-compose command:
docker-compose up -d
List the running services:
docker-compose ps
Stop the services:
docker-compose stop
Remove the services:
docker-compose rm
At this point the docker-compose.yml file is ready for conversion.
Use the compose2kube command to convert docker-compose.yml to native Kubernetes objects.
$ compose2kube -compose-file docker-compose.yml -output-dir output
output/cache-rc.yaml
output/database-rc.yaml
output/web-rc.yaml
$ kubectl create -f output/
replicationcontrollers/cache
replicationcontrollers/database
replicationcontrollers/web
List the replication controllers:
$ kubectl get rc
CONTROLLER CONTAINER(S) IMAGE(S) SELECTOR REPLICAS
cache cache memcached service=cache 1
database database postgres service=database 1
web web nginx service=web 1
View the service pods:
$ kubectl get pods
NAME READY STATUS RESTARTS AGE
cache-i3az8 1/1 Running 0 6h
database-jq2lr 1/1 Running 0 6h
kube-controller-172.16.238.141 4/4 Running 0 6h
web-1vj6h 1/1 Running 0 6h