CODEWITHSUNDEEP
dockerdocker-swarmwindows-server-2019
Yamuk
Yamuk

Reputation: 769

Sharing data in volumes among nodes on Swarm in windows server 2019

I am using Windows Server 2019 1809 on Hyper-V virtual machines. I have a small 2-node swarm with multiple replica services, and I am using volumes to store data. How can I replicate this data from my manager to the worker so that they are the same on both nodes? Apparently I cannot use any plugins for Windows machines. I can delegate the synchronization to Windows server or any other sync service. But I would like to know if I am missing something and if there is a way to synchronize volumes on both machines.

Here is a compose file as an example:

version: "3.7"

    nexus:
        image: myrepo/nexus:latest
        volumes:
            - nexus_data:C:\data
        deploy:
            placement:
                constraints: [node.role == manager]
            replicas: 2
        networks:
            - overlay-network


    proxy:
        image: myrepo/nginx-windows
        ports:
          - target: 80
            published: 80
            mode: host
        volumes:
          - type: volumes
            source: nginx_data
            target: C:/nginx/conf

        networks:
          overlay-network:
        deploy:
          mode: global
          endpoint_mode: dnsrr


networks:
    overlay-network:
      external: true 

volumes:
    nexus_data:
      external: true
    nginx_data:
      external: true

Upvotes: 0

Views: 358

Answers (1)

CantankerousBullMoose
CantankerousBullMoose

Reputation: 512

I believe the currently recommended answer is to make the container responsible attaching to a shared folder instead of handling it as a docker volume. So you share a windows folder that the Hyper-V guests can access, and then the containers mount it as a mapped drive (or just point straight to the UNC path). There's some discussion about it here and here

Upvotes: 1

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