Kubernetes YAML file with if-else condition - kubernetes

Question

I have yaml file which use to deploy my application in all the environments. I want to add some JVM args only for test environment . is there anyway i can do it in YAML file?
here is the yaml
apiVersion: v1
kind: Pod
metadata:
name: rss-site
labels:
app: web
spec:
containers:
- name: front-end
image: nginx
ports:
- containerPort: 80
- name: rss-reader
image: nickchase/rss-php-nginx:v1
ports:
- containerPort: 88
env:
- name: JAVA_OPTS
value: "
-Dlog4j.configurationFile=log4j2.xml
-Denable.scan=true
"
here i want -Denable.scan=true to be conditional and should add only for Test environment .
I tried following way but it not working and kubernete throwing error error converting YAML to JSON: yaml: line 53: did not find expected key
Tried:-
apiVersion: v1
kind: Pod
metadata:
name: rss-site
labels:
app: web
spec:
containers:
- name: front-end
image: nginx
ports:
- containerPort: 80
- name: rss-reader
image: nickchase/rss-php-nginx:v1
ports:
- containerPort: 88
env:
- name: JAVA_OPTS
value: "
-Dlog4j.configurationFile=log4j2.xml
${{if eq "TEST" "TEST" }} # just sample condition , it will change
-Denable.scan=true
${{end }}
"

Answer 1

helm will do that. In fact, the syntax is almost identical to what you've put, and would be something like this:
env:
- name: JAVA_OPTS
value: "
-Dlog4j.configurationFile=log4j2.xml
{{- if eq .Values.profile "TEST" }}
-Denable.scan=true
{{- end }}
"
And you declare via the install package (called a Chart) which profile you want to use (i.e. you set the .Values.profile value)
You can check out https://helm.sh/ for details and examples