K
Q

Return 400 when i use kubernetes Deployment rollback API

5/26/2016

Sorry, maybe this is not a problem. Post data as below to url http://$ip:8080/apis/extensions/v1beta1/namespaces/default/deployments/deployment-1/rollback {"kind":"Deployment","apiVersion":"extensions\/v1beta1","name":"deployment-1","updatedAnnotations":"1111","rollbackTo":{"revision":0}}

return error:

{"kind":"Status","apiVersion":"v1","metadata":{},"status":"Failure","message":"Deployment in version \"v1beta1\" cannot be handled as a DeploymentRollback: converting (v1beta1.Deployment) to (extensions.DeploymentRollback): UpdatedAnnotations not present in src","reason":"BadRequest","code":400}

Is there anything wrong with my post data? Another question: If a Deployment has two pods, there're two container in each of pod. I want update one container's image(use the url http://$ip:8080/apis/extensions/v1beta1/namespaces/default/deployments/$deployment_name). If i just change the first container's image, another container is gone! Is that right? It means that if I want update one containers' label or image I need define all the info of the containers which in the same pod?

-- workhardcc
docker
kubernetes

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2 Answers

5/27/2016

I found the second question's answer Should use API like this :

curl --request PATCH --header "Content-Type:application/strategic-merge-patch+json" http://$ip:8080/apis/extensions/v1beta1/namespaces/default/deployments/deploymen‌​t-patch --data '{"spec":{"template":{"spec":{"containers":[{"name":"mofang-web","image":"abc.co‌​m\/docker\/mofang-web-cc:stable"}]}}}}'

But I still don't understand the differences between this three method:

application/json-patch+json
application/merge-patch+json
application/strategic-merge-patch+json
-- workhardcc
Source: StackOverflow
5/26/2016

UpdatedAnnotations should be a map[string]string, so try something like:

{
    "kind":"Deployment",
    "apiVersion":"extensions\/v1beta1",
    "name":"deployment-1",
    "updatedAnnotations": {"label":"1111"},
    "rollbackTo":{"revision":0}
}

For your second question, you should be able to PATCH just the container image that you want to change. If you use PUT (or kubectl apply) you need to provide the full PodSpec, including the containers that you aren't changing.

-- CJ Cullen
Source: StackOverflow