Docker Swarm Linking

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I'm trying to create a Docker Swarm Cluster running an elastic search instance, a MongoDB instance and a grails app, each on a separate machine.

I'm trying to run the following command

docker run -p 8080:8080 -d --name grails-master --volumes-from maven --link mongo:mongo-master --link es:es-master my-grails-image

But its throwing the following error

Error response from daemon: Unable to find a node fulfilling all dependencies: --volumes-from=maven --link=mongo:mongo-master --link=es:es-master
Aug 22, 2018 in Docker by lina
• 8,110 points
43 views

1 answer to this question.

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Linking in docker is complicated and difficult. There is another way to go about this, try it

Just create an overlay network for swarm mode.

docker network create -d overlay mynetwork

In swarm mode, just add every service who should communicate with another service to the same network.

docker service create --network mynetwork --name mymongodb ...

Other services in the same network can reach your mongodb service just over the hostname mymongodb.

answered Aug 22, 2018 by Nilesh
• 6,880 points

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