I need to declare a long list of ports (in thousands) in both the pod template and the loadbalancer service. I believe there must be a way to do it without repeating the following a thousand times in the yaml. Can someone please shed some lights? Thanks.
- name: containerPort10000
containerPort: 10000Update: I'm afraid the problem is more complicated now. As I need to expose 10k ports (for connecting devices, using both TCP and UDP), I need to specify the followings in the yaml:
- targetPort: 10000
port: 10000
nodePort: 10000
name: t10000
protocol: TCP
- targetPort: 10000
port: 10000
nodePort: 10000
name: u10000
protocol: UDP
...
- targetPort: 20000
port: 20000
nodePort: 20000
name: t20000
protocol: TCP
- targetPort: 20000
port: 20000
nodePort: 20000
name: u20000
protocol: UDPand I've hit The Service "svr" is invalid: metadata.annotations: Too long: must have at most 262144 characters error. Please help.
I would go for bash script, but I would like to see other approaches.
bash svc.sh | kubectl apply -f -
service/multiport created
multiport LoadBalancer 10.100.63.192 <pending> 1000:32545/TCP,1001:32324/TCP,1002:32559/TCP,1003:31523/TCP,1004:31027/TCP,1005:31671/TCP,1006:31532/TCP,1007:30568/TCP,1008:30105/TCP,1009:32649/TCP 3s$ cat svc.sh
#!/bin/bash
#set -x
BODY=""
for p in `echo {1000..1009}`;do
BODY=$BODY$(echo -e "\n - port: $p\n protocol: TCP\n targetPort: $p\n name: tcp$p\n")
done
cat << TEMPLATE
apiVersion: v1
kind: Service
metadata:
creationTimestamp: null
labels:
run: ubuntu
name: multiport
spec:
ports:
${BODY}
selector:
run: ubuntu
type: LoadBalancer
status:
loadBalancer: {}
TEMPLATE
or you can go for vim macro.