Creating Multiple Namespaces from the Kubernetes Command Line Interface

Question

I want to create multiple namespaces from the Kubernetes CLI (kubectl) without any YAML manifests:

kubectl create namespace app1,app2,app3

Can this be done?

Markus Dresch · Accepted Answer · 2019-07-03 13:54:58Z

3

kubectl expects exactly one namespace:

➜  / kubectl create ns
error: exactly one NAME is required, got 0

depending on your shell you could pack it into a loop. here's an example for bash and zsh:

➜  / foreach ns (ns1 ns2 ns3); kubectl create ns $ns; end

answered Jul 3, 2019 at 13:54

Markus Dresch

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Comments

Paul Back · Accepted Answer · 2019-07-03 13:26:49Z

1

You could chain together 2 kubectl commands like so:

kubectl create ns app1 && kubectl create ns app2...

answered Jul 3, 2019 at 13:26

Paul Back

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is there more an elegant way

The command does not have such flags/options but @Markus' suggestion might be more fitting for you.