需要通过环境变量支持采集k8s上的rocketmq集群

[ndzuki]

Is your feature request related to a problem? Please describe.
rocketmq集群部署在k8s, 需要采集指标数据.

Describe the solution you'd like
rocketmq-exporter容器镜像需要支持环境变量实现动态采集k8s集群上的nameserver

Describe alternatives you've considered
可以增加k8s部署rocketmq-exporter的说明文档

Additional context
Add any other context or screenshots about the feature request here.

[dreamhighhd]

`apiVersion: apps/v1
kind: Deployment
metadata:
name: rocketmq-exporter
namespace: monitoring
labels:
app: rocketmq-exporter
spec:
replicas: 1
selector:
matchLabels:
app: rocketmq-exporter
template:
metadata:
labels:
app: rocketmq-exporter
spec:
containers:
- name: rocketmq-exporter
image: apache/rocketmq-exporter:0.0.2
imagePullPolicy: IfNotPresent
ports:
- containerPort: 5557
name: metrics
env:
- name: ROCKETMQ_CONFIG_NAMESRVADDR
value: "rocketmq-nameserver.rocketmq.svc.cluster.local:9876"
- name: JAVA_OPTS
value: "-Xms256m -Xmx256m"
livenessProbe:
httpGet:
path: /metrics
port: 5557
initialDelaySeconds: 30
periodSeconds: 15
readinessProbe:
httpGet:
path: /metrics
port: 5557
initialDelaySeconds: 20
periodSeconds: 10
resources:
requests:
cpu: 100m
memory: 256Mi
limits:
cpu: 500m
memory: 512Mi
restartPolicy: Always
#imagePullSecrets:
#- name: default-secret

---

apiVersion: v1
kind: Service
metadata:
name: rocketmq-exporter
namespace: monitoring
labels:
app: rocketmq-exporter
spec:
selector:
app: rocketmq-exporter
ports:

• name: metrics
  port: 5557
  targetPort: 5557
  type: ClusterIP`

[dreamhighhd]

这个github的代码块咋有问题