Docker swarm

AKA the build-in load balancing for docker


docker swarm init
 
$ docker swarm init
Swarm initialized: current node (jijr57zap1bxuo6xo7f4i9uig) is now a manager.
 
To add a worker to this swarm, run the following command:
 
    docker swarm join --token xxxxxxxxxxxxxx 192.168.65.3:2377  
 
To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.

Usgae


# Create a swarm
# docker service create --replicas <number> --name=<you_name_it_a_name> <image_name>
docker service create --replicas 3 --name=mvc-test mvc-test:latest
docker service create --replicas 3 --name=my_nginx nginx --publish 8123:80
 
# View services
docker service ls
docker service rm my_nginx
 
# Update
# docker service update [OPTIONS] SERVICE
docker service update --publish-add 80 my_nginx