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improve error of docker network create -d overlay on non-Swarm node

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before: Error response from daemon: datastore for scope "global" is not initialized
after: Error response from daemon: This node is not a swarm manager. Use "docker swarm init" or "docker swarm join" to connect this node to swarm and try again.

Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
This commit is contained in:
Akihiro Suda 2017-03-17 07:48:23 +00:00
parent 3343653edb
commit 9c77a4c297
1 changed files with 3 additions and 0 deletions
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3
daemon/network.go
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@ -335,6 +335,9 @@ func (daemon *Daemon) createNetwork(create types.NetworkCreateRequest, id string
n, err := c.NewNetwork(driver, create.Name, id, nwOptions...)
if err != nil {
if _, ok := err.(libnetwork.ErrDataStoreNotInitialized); ok {
return nil, errors.New("This node is not a swarm manager. Use \"docker swarm init\" or \"docker swarm join\" to connect this node to swarm and try again.")
}
return nil, err
}