mysql-pod.yaml

# overView: 
# 1. web服務(wù)與db打包放在同一個(gè)pod中，本地通過(guò)localhost來(lái)訪問(wèn)，并附帶存活性/可用性檢測(cè)
# 2. 補(bǔ)充重啟策略/鏡像拉去策略
# 3. 對(duì)容器資源進(jìn)行限制

apiVersion: apps/v1
kind: Pod
metadata:
  name: pub-oa
  namespace: hunter
  labels:
    component: pub-oa
spec:
  restartPolicy: onFailure # 設(shè)置重啟策略，此外還有 Always， Never方式
  volumes:
    - name: mysql
      hostPath:
        path: /opt/mysql/data
  nodeSelector:
    component: prod-k8s-node1 # kubectl label node prod-k8s-node1 component=prod-k8s-node1
  containers:
    - name: pub-oa-db
      image: rigistry.cn-shanghai.aliyuncs.com/pub-oa-db:v1
      imagePullPolicy: IfNotPresent # 鏡像拉去策略，此外還有Always, Never
      ports:
        - containerPort: 3306
      env:
        - name: MYSQL_USER
          valueFrom:
            secretKeyRef:
              name: pub-oa
              key: MYSQL_USER
        - name: MYSQL_PASSWORD
          valueFrom:
            secretKeyRef:
              name: pub-oa
              key: MYSQL_PASSWORD
      resources: # 容器資源限制
        requests:
          memory: 100Mi # 當(dāng)pod內(nèi)存超過(guò)100Mi時(shí)，會(huì)報(bào)OOM
          cpu: 50m # 當(dāng)cpu超過(guò)limit限制時(shí)，不會(huì)被kill，但是會(huì)限制不超過(guò)limit值，1 CPU = 1000 millicpu（1 core = 1000m（毫核）），cpu資源是按 “時(shí)間片”的方式來(lái)分配的
        limits:
          memory: 500Mi
          cpu: 100m
      volumeMounts:
        - name: mysql
          mountPath: /var/lib/mysql
        

web-pod.yaml

# overView: 
# 1. web服務(wù)與db打包放在同一個(gè)pod中，本地通過(guò)localhost來(lái)訪問(wèn)，并附帶存活性/可用性檢測(cè)
# 2. 補(bǔ)充重啟策略/鏡像拉去策略
# 3. 對(duì)容器資源進(jìn)行限制
 
apiVersion: apps/v1
kind: Pod
metadata:
  name: pub-oa
  namespace: hunter
  labels:
    component: pub-oa
spec:
  restartPolicy: onFailure # 設(shè)置重啟策略，此外還有 Always， Never方式
  nodeSelector:
    component: prod-k8s-node1 # kubectl label node prod-k8s-node1 component=prod-k8s-node1
  containers:
    - name: pub-oa-web
      image: rigistry.cn-shanghai.aliyuncs.com/pub-oa-app:v1
      imagePullPolicy: IfNotPresent # 鏡像拉去策略，此外還有Always, Never
      ports:
        - containerPort: 8080
      env:
        - name: MYSQL_HOST
          valueFrom:
            secretKeyRef:
              name: pub-oa
              key: MYSQL_HOST
        - name: MYSQL_PORT
          valueFrom:
            secretKeyRef:
              name: pub-oa
              key: MYSQL_PORT
        - name: MYSQL_USER
          valueFrom:
            secretKeyRef:
              name: pub-oa
              key: MYSQL_USER
        - name: MYSQL_PASSWORD
          valueFrom:
            secretKeyRef:
              name: pub-oa
              key: MYSQL_PASSWORD
      livenessProbe: # 存活性探測(cè)
        httpGet: # 此外還有 exec，tcpSocket類型
          path: /code-library/listCodeLibrary
          port: 8080
          scheme: HTTP
        initialDelaySeconds: 10 # 容器啟動(dòng)后，第一次執(zhí)行探測(cè)時(shí)需要等待多少秒
        periodSeconds: 10 # 執(zhí)行探測(cè)的頻率
        timeoutSeconds: 2 # 探測(cè)超時(shí)時(shí)間
      readinessProbe: # 可用性探測(cè)
        httpGet: # 此外還有 exec，tcpSocket類型
          path: /code-library/listCodeLibrary
          port: 8080
          scheme: HTTP
        initialDelaySeconds: 10 # 容器啟動(dòng)后，第一次執(zhí)行探測(cè)時(shí)需要等待多少秒
        periodSeconds: 10 # 執(zhí)行探測(cè)的頻率
        timeoutSeconds: 2 # 探測(cè)超時(shí)時(shí)間
      resources: # 容器資源限制
        requests:
          memory: 100Mi # 當(dāng)pod內(nèi)存超過(guò)100Mi時(shí)，會(huì)報(bào)OOM
          cpu: 50m # 當(dāng)cpu超過(guò)limit限制時(shí)，不會(huì)被kill，但是會(huì)限制不超過(guò)limit值，1 CPU = 1000 millicpu（1 core = 1000m（毫核）），cpu資源是按 “時(shí)間片”的方式來(lái)分配的
        limits:
          memory: 500Mi
          cpu: 100m
      volumeMounts:
        - name: mysql
          mountPath: /var/lib/mysql

configMap.yaml

apiVersion: v1
kind: ConfigMap
metadata:
  name: pub-oa
  namespace: hunter
data:
  MYSQL_HOST: 192.168.179.141
  MYSQL_PORT: 3306

sceret.yaml

apiVersion: v1
kind: Secret
metadata:
  name: pub-oa
  namespace: hunter
type: Opaque
data:
  MYSQL_USER: cm9vdA== # 注意加-n參數(shù)，echo -n root|base64
  MYSQL_PASSWORD: aHVudGVy

文章來(lái)源地址http://www.zghlxwxcb.cn/news/detail-700197.html

到了這里，關(guān)于K8S之使用yaml格式定義pod的文章就介紹完了。如果您還想了解更多內(nèi)容，請(qǐng)?jiān)谟疑辖撬阉鱐OY模板網(wǎng)以前的文章或繼續(xù)瀏覽下面的相關(guān)文章，希望大家以后多多支持TOY模板網(wǎng)！