Currently i writing a yaml file for kubernetes and i've some question on my mind about the best practices. Like, do i've to declare in each {Service, Deployment Pod} the ports i want to open ?
i didn't found any advice for that :(
Do you see anything, than i can write to optimize my yaml file? thank in advance for your help and your advice.
apiVersion: v1
kind: Service
metadata:
name: karaf
namespace: poc
spec:
type: NodePort
selector:
app: karaf
ports:
- name: port6443
port: 6443
targetPort: 6443
nodePort: 30105
- name: port5000
port: 6100
targetPort: 6100
nodePort: 30100
- name: port5001
port: 6101
targetPort: 6101
nodePort: 30101
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: karaf
namespace: poc
spec:
replicas: 1
template:
metadata:
labels:
app: karaf
spec:
containers:
- name: karaf
image: "xxxxxx/karaf:ids-1.1.0"
imagePullPolicy: Always
ports:
- containerPort: 6443
protocol: TCP
- containerPort: 6100
protocol: TCP
- containerPort: 6101
protocol: TCP
---
apiVersion: v1
kind: Pod
metadata:
name: karaf
labels:
app: karaf
spec:
containers:
- name: karaf
image: "xxxxxxxxxx/karaf:ids-1.1.0"
ports:
- containerPort: 6443
ports:
- containerPort: 6100
ports:
- containerPort: 6101do not repeat ports: key in deployment/pod multiple times your pod inherits from Deployment that started it, so I assume you placed it here just for reference, cause it makes no sense to create it manually), it's a list so just
port:
- containerPort: 6443
- containerPort: 6100
- containerPort: 6101also, you don't really have to define ports here, although it helps to make clear what is running where. If you don't, your software will still start on ports it's using, and services will successfully direct traffic to them.