Kubectl is not a templating system, which is what you are asking for.
Create/Apply are declarative plumbing, suitable to things you would check
in to source control.  There are porcelain commands, eg. kubectl run, which
are closer to docker run, but less suitable to source control.

On Dec 7, 2017 9:56 AM, "Henry Hottelet" <hotte...@gmail.com> wrote:

>
> A problem:
>
> Docker arguments will pass from command line:
>
> docker run -it -p 8080:8080 joethecoder2/spring-boot-web 
> -Dcassandra_ip=127.0.0.1 -Dcassandra_port=9042
>
> However, when I do:
>
> kubectl create -f ./singlePod.yaml
>
> Kubernetes POD arguments will not pass from singlePod.yaml file:
>
> apiVersion: v1
> kind: Pod
> metadata:
>   name: spring-boot-web-demo
>   labels:
>     purpose: demonstrate-spring-boot-web
> spec:
>   containers:
>   - name: spring-boot-web
>     image: docker.io/joethecoder2/spring-boot-web
>     env: ["name": "-Dcassandra_ip", "value": "127.0.0.1"]
>     command: ["java","-jar", "spring-boot-web-0.0.1-SNAPSHOT.jar", 
> "-D","cassandra_ip=127.0.0.1", "-D","cassandra_port=9042"]
>     args: ["-Dcassandra_ip=127.0.0.1", "-Dcassandra_port=9042"]
>   restartPolicy: OnFailure
>
> Question: How do I correctly specify arguments that will change at
> runtime?  I want to add two arguments that change at Kubernetes POD
> runtime, because these should be configurable for each POD that is defined.
>   Arguments for the POD are:  -Dcassandra_ip=127.0.0.1",
> "-Dcassandra_port=9042
>
> I want the arguments to be accepted just like the Docker command line.
>
>
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