[Solved] Given the following Docker Swarm overlay network creation command:docker network create -d overlay --attachable mynetWhat does the --attachable flag do? | Docker

Docker - Swarm

Given the following Docker Swarm overlay network creation command:

docker network create -d overlay --attachable mynet

What does the --attachable flag do?

ALimits the network to only swarm services

BPrevents services from using the network

CAllows standalone containers to connect to the overlay network

DAutomatically attaches volumes to containers

Step-by-Step Solution

Solution:

Step 1: Understand the --attachable flag
The --attachable flag allows standalone containers (not part of swarm services) to connect to the overlay network.
Step 2: Analyze options
Prevents services from using the network is false because it does not prevent services. Limits the network to only swarm services is opposite of what attachable does. Automatically attaches volumes to containers is unrelated to networks.
Final Answer:
Allows standalone containers to connect to the overlay network -> Option C
Quick Check:
--attachable = standalone container access [OK]

Quick Trick: Attachable lets normal containers join overlay networks [OK]

Common Mistakes:

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