CODEWITHSUNDEEP
kubernetesdaemonset
Naxi
Naxi

Reputation: 2044

Is there an imperative command to create daemonsets in kubernetes?

I was wondering if there is an easier way to create daemonsets in k8s other than yaml files. For eg, for pods we have kubectl run --generator=run-pod/v1 command. I was wondering if there is something similar for DS.

Thanks in advance.

Upvotes: 5

Views: 4789

Answers (3)

Imran Hossain
Imran Hossain

Reputation: 41

  • Follow this trick to better organize code
kubectl create deployment $NAME \
  --image=$IMAGE \
  -n $NAMESPACE \
  --dry-run=client \
  -o yaml | \
sed "s/Deployment/DaemonSet/" | \
sed '/replicas/d' | \
sed '/strategy/d' | \
kubectl apply -f -

Upvotes: 3

Masudur Rahman
Masudur Rahman

Reputation: 1693

There is no such quick kubectl create type command for creating daemonsets. But you can do it in some other way.

  • One way to do this is: 
    $ kubectl create deploy nginx --image=nginx --dry-run=client -o yaml | \
    sed '/null\|{}\|replicas/d;/status/,$d;s/Deployment/DaemonSet/g' > nginx-ds.yaml
$ kubectl apply -f nginx-ds.yaml
  • If you don't want to save the yaml data to any file, here's how you can do this: 
    $ kubectl create deploy nginx --image=nginx --dry-run=client -o yaml | \
    sed '/null\|{}\|replicas/d;/status/,$d;s/Deployment/DaemonSet/g' | \
    kubectl apply -f -

You have your daemonset now.

What we are doing here is: at first we're creating a deployment yaml and then replacing kind: Deployment with kind: DaemonSet and remove replicas: 1 from the deployment yaml.

Thats's how we get yaml for daemonset.

Upvotes: 9

Aditya Bhuyan
Aditya Bhuyan

Reputation: 458

You can access Kubernetes Documentation for DaemonSets. You could use the link and get examples of DaemonSet yaml files. However there is no way you could create a Daemonset by imperative way. You could create a deployment specification and change the deployment specification to DaemonSet specification. You need to change the kind to Daemonset, remove strategy, replicas and status fields. That would do.

Upvotes: 0

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