Is there a way to update the Services selector label?

Norman Khine

unread,

Oct 20, 2016, 9:30:59 AM10/20/16

to Kubernetes user discussion and Q&A

Hello, I have the following pod, which has 3 containers:

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: app-feature
  labels:
    pod: app
    track: feature
spec:
  replicas: 3
  template:
    metadata:
      labels:
        pod: app
        track: feature
    spec:
      containers:
        - name: app-api
          image: quay.io/.../api:feature_swagger
          imagePullPolicy: Always
          ports:
            - containerPort: 3000
        - name: app-media
          image: quay.io/.../media:feature_kube
          imagePullPolicy: Always
          ports:
            - containerPort: 4000
        - name: phantom
          image: docker.io/wernight/phantomjs:2.1.1
          command: ["phantomjs", "--webdriver=8910", "--web-security=no", "--load-images=false", "--local-to-remote-url-access=yes"]
          ports:
            - containerPort: 8910
          resources:
            requests:
              memory: 1000
      restartPolicy: Always
      imagePullSecrets:
        # we download these from quay.io account
        - name: pull-secret

This is the service file i have:

apiVersion: v1

kind: Service

metadata:

name: media-dev

annotations:

service.beta.kubernetes.io/aws-load-balancer-ssl-cert: arn:aws:acm:us-east-1:XXX:certificate/XXX

service.beta.kubernetes.io/aws-load-balancer-backend-protocol: http

service.beta.kubernetes.io/aws-load-balancer-ssl-ports: https

spec:

type: LoadBalancer

selector:

pod: app

track: develop

ports:

- name: http

port: 80

targetPort: 4000

- name: https

port: 443

targetPort: 4000

How do I change the selector for this loadBalancer to track `feature` instead of `develop` - is it possible to modify for an existing Service without having to create a new service?

Any advise is much appreciated

Rodrigo Campos

unread,

Oct 20, 2016, 9:54:10 AM10/20/16

to kubernet...@googlegroups.com

Yes, modify the file and do kubectl apply -f <file>

--
You received this message because you are subscribed to the Google Groups "Kubernetes user discussion and Q&A" group.
To unsubscribe from this group and stop receiving emails from it, send an email to kubernetes-users+unsubscribe@googlegroups.com.
To post to this group, send email to kubernetes-users@googlegroups.com.
Visit this group at https://groups.google.com/group/kubernetes-users.
For more options, visit https://groups.google.com/d/optout.

Tim Hockin

unread,

Oct 20, 2016, 10:35:28 AM10/20/16

to kubernet...@googlegroups.com

Kubectl replace requires you to read-modify-write to avoid immutable fields, but apply is "gentler" and generates a patch.

Norman Khine

unread,

Oct 20, 2016, 10:48:54 AM10/20/16

to kubernet...@googlegroups.com

i am trying to update a service not a pod

➜ k8s git:(master) ✗ kubectl replace -f templates/services/dev/service-media-feature.yaml (git)-[master]

The Service "media-feature" is invalid.

spec.clusterIP: Invalid value: "": field is immutable

whereas apply works and updates the Service

thanks for your help

You received this message because you are subscribed to a topic in the Google Groups "Kubernetes user discussion and Q&A" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/kubernetes-users/tqtPsS7t3hw/unsubscribe.
To unsubscribe from this group and all its topics, send an email to kubernetes-users+unsubscribe@googlegroups.com.

To post to this group, send email to kubernetes-users@googlegroups.com.
Visit this group at https://groups.google.com/group/kubernetes-users.
For more options, visit https://groups.google.com/d/optout.

--

%>>> "".join( [ {'*':'@','^':'.'}.get(c,None) or chr(97+(ord(c)-83)%26) for c in ",adym,*)&uzq^zqf" ] )

Tim Hockin

unread,

Oct 20, 2016, 11:34:37 AM10/20/16

to kubernet...@googlegroups.com

That's what I mean - replace really requires a read-modify-write, so
you can read back the immutable field.

>>>> an email to kubernetes-use...@googlegroups.com.
>>>> To post to this group, send email to kubernet...@googlegroups.com.

>>>> Visit this group at https://groups.google.com/group/kubernetes-users.
>>>> For more options, visit https://groups.google.com/d/optout.
>>>
>>> --
>>> You received this message because you are subscribed to the Google Groups
>>> "Kubernetes user discussion and Q&A" group.
>>> To unsubscribe from this group and stop receiving emails from it, send an

>>> email to kubernetes-use...@googlegroups.com.
>>> To post to this group, send email to kubernet...@googlegroups.com.

>>> Visit this group at https://groups.google.com/group/kubernetes-users.
>>> For more options, visit https://groups.google.com/d/optout.
>>
>> --
>> You received this message because you are subscribed to a topic in the
>> Google Groups "Kubernetes user discussion and Q&A" group.
>> To unsubscribe from this topic, visit
>> https://groups.google.com/d/topic/kubernetes-users/tqtPsS7t3hw/unsubscribe.
>> To unsubscribe from this group and all its topics, send an email to

>> kubernetes-use...@googlegroups.com.
>> To post to this group, send email to kubernet...@googlegroups.com.

>> Visit this group at https://groups.google.com/group/kubernetes-users.
>> For more options, visit https://groups.google.com/d/optout.
>
>
>
>
> --
> %>>> "".join( [ {'*':'@','^':'.'}.get(c,None) or chr(97+(ord(c)-83)%26) for
> c in ",adym,*)&uzq^zqf" ] )
>

> --
> You received this message because you are subscribed to the Google Groups
> "Kubernetes user discussion and Q&A" group.
> To unsubscribe from this group and stop receiving emails from it, send an

> email to kubernetes-use...@googlegroups.com.
> To post to this group, send email to kubernet...@googlegroups.com.

Norman Khine

unread,

Oct 20, 2016, 11:55:55 AM10/20/16

to kubernet...@googlegroups.com

oh i see, thank you

On 20 October 2016 at 16:34, 'Tim Hockin' via Kubernetes user discussion and Q&A <kubernet...@googlegroups.com> wrote:

That's what I mean - replace really requires a read-modify-write, so
you can read back the immutable field.

On Thu, Oct 20, 2016 at 7:48 AM, Norman Khine <nor...@khine.net> wrote:
> i am trying to update a service not a pod
>
> ➜ k8s git:(master) ✗ kubectl replace -f
> templates/services/dev/service-media-feature.yaml (git)-[master]
> The Service "media-feature" is invalid.
> spec.clusterIP: Invalid value: "": field is immutable
>
> whereas apply works and updates the Service
>
> thanks for your help
>
>
> On 20 October 2016 at 15:35, 'Tim Hockin' via Kubernetes user discussion and

>>>> an email to kubernetes-users+unsubscribe@googlegroups.com.
>>>> To post to this group, send email to kubernetes-users@googlegroups.com.

>>>> Visit this group at https://groups.google.com/group/kubernetes-users.
>>>> For more options, visit https://groups.google.com/d/optout.
>>>
>>> --
>>> You received this message because you are subscribed to the Google Groups
>>> "Kubernetes user discussion and Q&A" group.
>>> To unsubscribe from this group and stop receiving emails from it, send an

>>> email to kubernetes-users+unsubscribe@googlegroups.com.
>>> To post to this group, send email to kubernetes-users@googlegroups.com.

>>> Visit this group at https://groups.google.com/group/kubernetes-users.
>>> For more options, visit https://groups.google.com/d/optout.
>>
>> --
>> You received this message because you are subscribed to a topic in the
>> Google Groups "Kubernetes user discussion and Q&A" group.
>> To unsubscribe from this topic, visit
>> https://groups.google.com/d/topic/kubernetes-users/tqtPsS7t3hw/unsubscribe.
>> To unsubscribe from this group and all its topics, send an email to

>> kubernetes-users+unsubscribe@googlegroups.com.
>> To post to this group, send email to kubernetes-users@googlegroups.com.

>> Visit this group at https://groups.google.com/group/kubernetes-users.
>> For more options, visit https://groups.google.com/d/optout.
>
>
>
>
> --
> %>>> "".join( [ {'*':'@','^':'.'}.get(c,None) or chr(97+(ord(c)-83)%26) for
> c in ",adym,*)&uzq^zqf" ] )
>
> --
> You received this message because you are subscribed to the Google Groups
> "Kubernetes user discussion and Q&A" group.
> To unsubscribe from this group and stop receiving emails from it, send an

> email to kubernetes-users+unsubscribe@googlegroups.com.
> To post to this group, send email to kubernetes-users@googlegroups.com.

> Visit this group at https://groups.google.com/group/kubernetes-users.
> For more options, visit https://groups.google.com/d/optout.

--
You received this message because you are subscribed to a topic in the Google Groups "Kubernetes user discussion and Q&A" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/kubernetes-users/tqtPsS7t3hw/unsubscribe.

To unsubscribe from this group and all its topics, send an email to kubernetes-users+unsubscribe@googlegroups.com.
To post to this group, send email to kubernetes-users@googlegroups.com.

Visit this group at https://groups.google.com/group/kubernetes-users.
For more options, visit https://groups.google.com/d/optout.

Reply all

Reply to author

Forward