交付blackbox-exporter

# 200机器，下载镜像
~]# docker pull prom/blackbox-exporter:v0.15.1
~]# docker images|grep blackbox-exporter
~]# docker tag 81b70b6158be harbor.od.com/public/blackbox-exporter:v0.15.1
~]# docker push harbor.od.com/public/blackbox-exporter:v0.15.1
~]# mkdir /data/k8s-yaml/blackbox-exporter
~]# cd /data/k8s-yaml/blackbox-exporter
blackbox-exporter]# vi cm.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  labels:
    app: blackbox-exporter
  name: blackbox-exporter
  namespace: kube-system
data:
  blackbox.yml: |-
    modules:
      http_2xx:
        prober: http
        timeout: 2s
        http:
          valid_http_versions: ["HTTP/1.1", "HTTP/2"]
          valid_status_codes: [200,301,302]
          method: GET
          preferred_ip_protocol: "ip4"
      tcp_connect:
        prober: tcp
        timeout: 2s
blackbox-exporter]# vi dp.yaml
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
  name: blackbox-exporter
  namespace: kube-system
  labels:
    app: blackbox-exporter
  annotations:
    deployment.kubernetes.io/revision: 1
spec:
  replicas: 1
  selector:
    matchLabels:
      app: blackbox-exporter
  template:
    metadata:
      labels:
        app: blackbox-exporter
    spec:
      volumes:
      - name: config
        configMap:
          name: blackbox-exporter
          defaultMode: 420
      containers:
      - name: blackbox-exporter
        image: harbor.od.com/public/blackbox-exporter:v0.15.1
        imagePullPolicy: IfNotPresent
        args:
        - --config.file=/etc/blackbox_exporter/blackbox.yml
        - --log.level=info
        - --web.listen-address=:9115
        ports:
        - name: blackbox-port
          containerPort: 9115
          protocol: TCP
        resources:
          limits:
            cpu: 200m
            memory: 256Mi
          requests:
            cpu: 100m
            memory: 50Mi
        volumeMounts:
        - name: config
          mountPath: /etc/blackbox_exporter
        readinessProbe:
          tcpSocket:
            port: 9115
          initialDelaySeconds: 5
          timeoutSeconds: 5
          periodSeconds: 10
          successThreshold: 1
          failureThreshold: 3
blackbox-exporter]# vi svc.yaml
kind: Service
apiVersion: v1
metadata:
  name: blackbox-exporter
  namespace: kube-system
spec:
  selector:
    app: blackbox-exporter
  ports:
    - name: blackbox-port
      protocol: TCP
      port: 9115
blackbox-exporter]# vi ingress.yaml
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: blackbox-exporter
  namespace: kube-system
spec:
  rules:
  - host: blackbox.od.com
    http:
      paths:
      - path: /
        backend:
          serviceName: blackbox-exporter
          servicePort: blackbox-port

# 11机器，解析域名：
~]# vi /var/named/od.com.zone
serial 前滚一位
blackbox           A    10.4.7.10
~]# systemctl restart named
# 22机器
~]# dig -t A blackbox.od.com @192.168.0.2 +short
# out: 10.4.7.10

# 22机器，应用：
~]# kubectl apply -f http://k8s-yaml.od.com/blackbox-exporter/cm.yaml
~]# kubectl apply -f http://k8s-yaml.od.com/blackbox-exporter/dp.yaml
~]# kubectl apply -f http://k8s-yaml.od.com/blackbox-exporter/svc.yaml
~]# kubectl apply -f http://k8s-yaml.od.com/blackbox-exporter/ingress.yaml