How to get the deployment.yaml file for MSSQL cluster in Kubernetes

Question

I am installing the SQL Server cluster in Kubernetes setup using the below document.

I am able to install the cluster successfully. But I need to customize the deployment by specifying the custom docker image, add additional containers.

May I know how to get the deployment YAML file & Dockerfile for all the images in the running containers?

I have tried "kubectl edit", but not able to edit required details.

score 1 · Answer 1 · answered Sep 30 '19 at 08:35

1

the easiest way of doing that is using something like:

kubectl get deployment -n %yournamespace% -o yaml > export.yaml

answered Sep 30 '19 at 08:35

4c74356b41

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you may also add the `--export` flag to get a yaml you can easily modify before submitting again onto servers – jseguillon Sep 30 '19 at 08:45
"true dat", but it also warns that the flag is deprecated – 4c74356b41 Sep 30 '19 at 09:08
oh ! did not know that :/ do you know what will replace this flag ? will `get -o yaml` do some `export` by default ? – jseguillon Sep 30 '19 at 09:18
1

no idea, sorry. I just know that I have an alias for `kubectl get -o yaml --export` and it always complains about `--export` being retired soon – 4c74356b41 Sep 30 '19 at 09:31

score 0 · Answer 2 · answered Sep 30 '19 at 09:05

For Kubernetes YAML files you can use:

kubectl get <pod,svc,all,etc> <name> --export=true -o yaml

or

kubectl get <pod,svc,all,etc> <name> -o yaml

For Docker Dockerfiles there is whole post on stackoverflow which explain how to create a dockerfile from an image.

MangeshBiradar · Answer 3 · 2019-09-30T12:17:00.790

Kubernetes Cheat Sheet is a good source for kubectl commands.

Let's say your deployments are created in develop namespace. Below command will help you to get a yaml out of your deployment, --export flag will remove the cluster specific information.

kubectl get deploy <your-deployment-name> --namespace=develop -o yaml --export > your-deployment.yaml

Below command will help you to get a json out of your deployment.

kubectl get deploy <your-deployment-name> --namespace=develop -o json --export > your-deployment.yaml

How to get the deployment.yaml file for MSSQL cluster in Kubernetes

3 Answers3