Docker Community Forums

Share and learn in the Docker community.

Are there any ways of implementing grayscale deployment of services with docker swarm(stack)?

Are there any ways of implementing grayscale deployment of services with docker swarm(stack)?

for example, I have a spring cloud service cluster. There are 3 user-service containers, 3 product-service containers, now I want to update user-service in a grayscale deployment style, can I update only one container to the wanted docker image version? and if it works well, then update all containers of user-service?

another way is: create a new docker-compose.yml which only has one replica of user-service container, and make it join the same overlay as the existing user-service containers. if it works fine, stop all old-version user-service containers and use docker service scale new_stack_user-service=3 to the new version of user-service to make it have 3 replicas.