k8s部署服务+日志收集+监控系统+CICD自动化

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2022-09-19

k8s部署服务+日志收集+监控系统+CICD自动化

公司服务架构图

image-20220917181317585

kubernetes集群组件功能

image-20220917111648386

高可用Keepalived组件功能

image-20220917155214819

整体架构图，可以自己使用或者编写

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image-20220917102008368

这边是我们部署的kubernetes集群可以借鉴我们的部署方法
image-20220916205913477

image-20220916210053588

部署日志收集-loki+grafana+promtail

创建命令空间

kubectl create namespace logging

创建grafana

编写grafana.yml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: grafana
  labels:
    app: grafana
  namespace: logging
spec:
  replicas: 1
  selector:
    matchLabels:
      app: grafana
  template:
    metadata:
      labels:
        app: grafana
    spec:
      containers:
      - name: grafana
        image: grafana/grafana:8.4.7
        imagePullPolicy: IfNotPresent
        env:
        - name: GF_AUTH_BASIC_ENABLED
          value: "true"
        - name: GF_AUTH_ANONYMOUS_ENABLED
          value: "false"
        resources:
          requests:
            cpu: 100m
            memory: 200Mi
          limits:
            cpu: '1'
            memory: 2Gi
        readinessProbe:
          httpGet:
            path: /login
            port: 3000
        volumeMounts:
        - name: storage
          mountPath: /var/lib/grafana
      volumes:
      - name: storage
        hostPath:
          path: /data/grafana          
---
apiVersion: v1
kind: Service
metadata:
  name: grafana
  labels:
    app: grafana
  namespace: logging
spec:
  type: NodePort
  ports:
  - port: 3000
    targetPort: 3000
    nodePort: 30030
  selector:
    app: grafana

image-20220916210523113

创建loki

编写loki-statefulset.yaml
root@k8s-master1:/lgp/monitor-master/loki# cat loki-statefulset.yaml 
apiVersion: v1
kind: Service
metadata:
  name: loki
  namespace: logging
  labels:
    app: loki
spec:
  type: NodePort
  ports:
    - port: 3100
      protocol: TCP
      name: http-metrics
      targetPort: http-metrics
      nodePort: 30100
  selector:
    app: loki
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: loki
  namespace: logging
  labels:
    app: loki
spec:
  podManagementPolicy: OrderedReady
  replicas: 1
  selector:
    matchLabels:
      app: loki
  serviceName: loki
  updateStrategy:
    type: RollingUpdate
  template:
    metadata:
      labels:
        app: loki
    spec:
      serviceAccountName: loki
      initContainers:
      - name: chmod-data
        image: busybox:1.28.4
        imagePullPolicy: IfNotPresent
        command: ["chmod","-R","777","/loki/data"]
        volumeMounts:
        - name: storage
          mountPath: /loki/data
      containers:
        - name: loki
          image: grafana/loki:2.3.0
          imagePullPolicy: IfNotPresent
          args:
            - -config.file=/etc/loki/loki.yaml
          volumeMounts:
            - name: config
              mountPath: /etc/loki
            - name: storage
              mountPath: /data
          ports:
            - name: http-metrics
              containerPort: 3100
              protocol: TCP
          livenessProbe:
            httpGet: 
              path: /ready
              port: http-metrics
              scheme: HTTP
            initialDelaySeconds: 45
          readinessProbe:
            httpGet: 
              path: /ready
              port: http-metrics
              scheme: HTTP
            initialDelaySeconds: 45
          securityContext:
            readOnlyRootFilesystem: true
      terminationGracePeriodSeconds: 4800
      volumes:
        - name: config
          configMap:
            name: loki
        - name: storage
          hostPath:
            path: /data/loki
编写loki-configmap.yaml
root@k8s-master1:/lgp/monitor-master/loki# cat loki-configmap.yaml 
apiVersion: v1
kind: ConfigMap
metadata:
  name: loki
  namespace: logging
  labels:
    app: loki
data:
  loki.yaml: |
    auth_enabled: false
    ingester:
      chunk_idle_period: 3m
      chunk_block_size: 262144
      chunk_retain_period: 1m
      max_transfer_retries: 0
      lifecycler:
        ring:
          kvstore:
            store: inmemory
          replication_factor: 1
    limits_config:
      enforce_metric_name: false
      reject_old_samples: true
      reject_old_samples_max_age: 168h
    schema_config:
      configs:
      - from: "2022-05-15"
        store: boltdb-shipper
        object_store: filesystem
        schema: v11
        index:
          prefix: index_
          period: 24h
    server:
      http_listen_port: 3100
    storage_config:
      boltdb_shipper:
        active_index_directory: /data/loki/boltdb-shipper-active
        cache_location: /data/loki/boltdb-shipper-cache
        cache_ttl: 24h         
        shared_store: filesystem
      filesystem:
        directory: /data/loki/chunks
    chunk_store_config:
      max_look_back_period: 0s
    table_manager:
      retention_deletes_enabled: true
      retention_period: 48h
    compactor:
      working_directory: /data/loki/boltdb-shipper-compactor
      shared_store: filesystem
编写loki-rbac.yaml
root@k8s-master1:/lgp/monitor-master/loki# cat loki-rbac.yaml 
apiVersion: v1
kind: ServiceAccount
metadata:
  name: loki
  namespace: logging
---
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  name: loki
  namespace: logging
rules:
- apiGroups: ["extensions"]
  resources: ["podsecuritypolicies"]
  verbs: ["use"]
  resourceNames: [loki]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: loki
  namespace: logging
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: loki
subjects:
- kind: ServiceAccount
  name: loki

image-20220916211336565

创建promtail

编写promtail-daemonset.yaml
root@k8s-master1:/lgp/monitor-master/promtail# cat promtail-daemonset.yaml
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: loki-promtail
  namespace: logging
  labels:
    app: promtail
spec:
  selector:
    matchLabels:
      app: promtail
  updateStrategy:
    rollingUpdate:
      maxUnavailable: 1
    type: RollingUpdate
  template:
    metadata:
      labels:
        app: promtail
    spec:
      serviceAccountName: loki-promtail
      containers:
        - name: promtail
          image: grafana/promtail:2.3.0
          imagePullPolicy: IfNotPresent
          args: 
          - -config.file=/etc/promtail/promtail.yaml
          - -client.url=http://192.168.2.215:30100/loki/api/v1/push
          env: 
          - name: HOSTNAME
            valueFrom: 
              fieldRef: 
                apiVersion: v1
                fieldPath: spec.nodeName
          volumeMounts:
          - mountPath: /etc/promtail
            name: config
          - mountPath: /run/promtail
            name: run
          - mountPath: /var/lib/docker/containers
            name: docker
            readOnly: true
          - mountPath: /var/log/pods
            name: pods
            readOnly: true
          ports:
          - containerPort: 3101
            name: http-metrics
            protocol: TCP
          securityContext:
            readOnlyRootFilesystem: true
            runAsGroup: 0
            runAsUser: 0
          readinessProbe:
            failureThreshold: 5
            httpGet:
              path: /ready
              port: http-metrics
              scheme: HTTP
            initialDelaySeconds: 10
            periodSeconds: 10
            successThreshold: 1
            timeoutSeconds: 1
      tolerations:
      - effect: NoSchedule
        key: node-role.kubernetes.io/master
        operator: Exists
      volumes:
        - name: config
          configMap:
            name: loki-promtail
        - name: run
          hostPath:
            path: /run/promtail
            type: ""
        - name: docker
          hostPath:
            path: /var/lib/docker/containers
        - name: pods
          hostPath:
            path: /var/log/pods
编写promtail-configmap.yaml
root@k8s-master1:/lgp/monitor-master/promtail# cat promtail-configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: loki-promtail
  namespace: logging
  labels:
    app: promtail
data:
  promtail.yaml: |
    client:
      backoff_config:
        max_period: 5m 
        max_retries: 10
        min_period: 500ms
      batchsize: 1048576
      batchwait: 1s
      external_labels: {}
      timeout: 10s
    positions:
      filename: /run/promtail/positions.yaml
    server:
      http_listen_port: 3101
    target_config:
      sync_period: 10s
    scrape_configs:
    - job_name: kubernetes-pods-name
      pipeline_stages:
        - docker: {}
      kubernetes_sd_configs:
      - role: pod
      relabel_configs:
      - source_labels:
        - __meta_kubernetes_pod_label_name
        target_label: __service__
      - source_labels:
        - __meta_kubernetes_pod_node_name
        target_label: __host__
      - action: drop
        regex: ''
        source_labels:
        - __service__
      - action: labelmap
        regex: __meta_kubernetes_pod_label_(.+)
      - action: replace
        replacement: $1
        separator: /
        source_labels:
        - __meta_kubernetes_namespace
        - __service__
        target_label: job
      - action: replace
        source_labels:
        - __meta_kubernetes_namespace
        target_label: namespace
      - action: replace
        source_labels:
        - __meta_kubernetes_pod_name
        target_label: pod
      - action: replace
        source_labels:
        - __meta_kubernetes_pod_container_name
        target_label: container
      - replacement: /var/log/pods/*$1/*.log
        separator: /
        source_labels:
        - __meta_kubernetes_pod_uid
        - __meta_kubernetes_pod_container_name
        target_label: __path__
    - job_name: kubernetes-pods-app
      pipeline_stages:
        - docker: {}
      kubernetes_sd_configs:
      - role: pod
      relabel_configs:
      - action: drop
        regex: .+
        source_labels:
        - __meta_kubernetes_pod_label_name
      - source_labels:
        - __meta_kubernetes_pod_label_app
        target_label: __service__
      - source_labels:
        - __meta_kubernetes_pod_node_name
        target_label: __host__
      - action: drop
        regex: ''
        source_labels:
        - __service__
      - action: labelmap
        regex: __meta_kubernetes_pod_label_(.+)
      - action: replace
        replacement: $1
        separator: /
        source_labels:
        - __meta_kubernetes_namespace
        - __service__
        target_label: job
      - action: replace
        source_labels:
        - __meta_kubernetes_namespace
        target_label: namespace
      - action: replace
        source_labels:
        - __meta_kubernetes_pod_name
        target_label: pod
      - action: replace
        source_labels:
        - __meta_kubernetes_pod_container_name
        target_label: container
      - replacement: /var/log/pods/*$1/*.log
        separator: /
        source_labels:
        - __meta_kubernetes_pod_uid
        - __meta_kubernetes_pod_container_name
        target_label: __path__
    - job_name: kubernetes-pods-direct-controllers
      pipeline_stages:
        - docker: {}
      kubernetes_sd_configs:
      - role: pod
      relabel_configs:
      - action: drop
        regex: .+
        separator: ''
        source_labels:
        - __meta_kubernetes_pod_label_name
        - __meta_kubernetes_pod_label_app
      - action: drop
        regex: '[0-9a-z-.]+-[0-9a-f]{8,10}'
        source_labels:
        - __meta_kubernetes_pod_controller_name
      - source_labels:
        - __meta_kubernetes_pod_controller_name
        target_label: __service__
      - source_labels:
        - __meta_kubernetes_pod_node_name
        target_label: __host__
      - action: drop
        regex: ''
        source_labels:
        - __service__
      - action: labelmap
        regex: __meta_kubernetes_pod_label_(.+)
      - action: replace
        replacement: $1
        separator: /
        source_labels:
        - __meta_kubernetes_namespace
        - __service__
        target_label: job
      - action: replace
        source_labels:
        - __meta_kubernetes_namespace
        target_label: namespace
      - action: replace
        source_labels:
        - __meta_kubernetes_pod_name
        target_label: pod
      - action: replace
        source_labels:
        - __meta_kubernetes_pod_container_name
        target_label: container
      - replacement: /var/log/pods/*$1/*.log
        separator: /
        source_labels:
        - __meta_kubernetes_pod_uid
        - __meta_kubernetes_pod_container_name
        target_label: __path__
    - job_name: kubernetes-pods-indirect-controller
      pipeline_stages:
        - docker: {}
      kubernetes_sd_configs:
      - role: pod
      relabel_configs:
      - action: drop
        regex: .+
        separator: ''
        source_labels:
        - __meta_kubernetes_pod_label_name
        - __meta_kubernetes_pod_label_app
      - action: keep
        regex: '[0-9a-z-.]+-[0-9a-f]{8,10}'
        source_labels:
        - __meta_kubernetes_pod_controller_name
      - action: replace
        regex: '([0-9a-z-.]+)-[0-9a-f]{8,10}'
        source_labels:
        - __meta_kubernetes_pod_controller_name
        target_label: __service__
      - source_labels:
        - __meta_kubernetes_pod_node_name
        target_label: __host__
      - action: drop
        regex: ''
        source_labels:
        - __service__
      - action: labelmap
        regex: __meta_kubernetes_pod_label_(.+)
      - action: replace
        replacement: $1
        separator: /
        source_labels:
        - __meta_kubernetes_namespace
        - __service__
        target_label: job
      - action: replace
        source_labels:
        - __meta_kubernetes_namespace
        target_label: namespace
      - action: replace
        source_labels:
        - __meta_kubernetes_pod_name
        target_label: pod
      - action: replace
        source_labels:
        - __meta_kubernetes_pod_container_name
        target_label: container
      - replacement: /var/log/pods/*$1/*.log
        separator: /
        source_labels:
        - __meta_kubernetes_pod_uid
        - __meta_kubernetes_pod_container_name
        target_label: __path__
    - job_name: kubernetes-pods-static
      pipeline_stages:
        - docker: {}
      kubernetes_sd_configs:
      - role: pod
      relabel_configs:
      - action: drop
        regex: ''
        source_labels:
        - __meta_kubernetes_pod_annotation_kubernetes_io_config_mirror
      - action: replace
        source_labels:
        - __meta_kubernetes_pod_label_component
        target_label: __service__
      - source_labels:
        - __meta_kubernetes_pod_node_name
        target_label: __host__
      - action: drop
        regex: ''
        source_labels:
        - __service__
      - action: labelmap
        regex: __meta_kubernetes_pod_label_(.+)
      - action: replace
        replacement: $1
        separator: /
        source_labels:
        - __meta_kubernetes_namespace
        - __service__
        target_label: job
      - action: replace
        source_labels:
        - __meta_kubernetes_namespace
        target_label: namespace
      - action: replace
        source_labels:
        - __meta_kubernetes_pod_name
        target_label: pod
      - action: replace
        source_labels:
        - __meta_kubernetes_pod_container_name
        target_label: container
      - replacement: /var/log/pods/*$1/*.log
        separator: /
        source_labels:
        - __meta_kubernetes_pod_annotation_kubernetes_io_config_mirror
        - __meta_kubernetes_pod_container_name
        target_label: __path__
编写promtail-rbac.yaml
root@k8s-master1:/lgp/monitor-master/promtail# cat promtail-rbac.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  name: loki-promtail
  labels:
    app: promtail
  namespace: logging 
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  labels:
    app: promtail
  name: promtail-clusterrole
  namespace: logging
rules:
- apiGroups: [""]
  resources: ["nodes","nodes/proxy","services","endpoints","pods"]
  verbs: ["get", "watch", "list"] 
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: promtail-clusterrolebinding
  labels:
    app: promtail
  namespace: logging
subjects:
  - kind: ServiceAccount
    name: loki-promtail
    namespace: logging
roleRef:
  kind: ClusterRole
  name: promtail-clusterrole
  apiGroup: rbac.authorization.k8s.io

image-20220916211703658

重点每个节点都创建下面这俩个目录

mkdir -p /run/promtail
mkdir -p /var/log/pods

访问grafana

image-20220916211848508

选择查看pod日志

image-20220916212005002

查看结果

image-20220916212105363

部署Prometheus监控系统

我这里是直接通过kuboard页面化创建

选择集群套件

image-20220917150730450

查看套件信息

image-20220917150819911

安装脚本

image-20220917151226582

告警发送配置

image-20220917151349098

告警规则

image-20220917151952053

告警事件

image-20220917152020806

验证查看

image-20220917152122403

随便选择一个pod查看

image-20220917153222845

查看工作负载

image-20220917153245980

查看网络负载

image-20220917153305969

选择这个

image-20220917153420694

可以选择资源

image-20220917153449321

进去查看
image-20220917153516028

image-20220917153538070

image-20220917153554058

查看node

image-20220917153716633

选择节点

image-20220917153802549

image-20220917153821184

查看k8s集群的资源
image-20220917154101207
整个集群的资源监控

image-20220917154128872

image-20220917154154841

部署CICD-jenkins-pipeline流水线

我们的k8s集群构建服务完成我们想要开发人员推送代码，我们需要配置自动化构建，开发人员提交代码，要打tag要打tag要打tag

代码仓库配置

编写dockerfile
#因为是jar包，我们dockerfile是这样的
FROM openjdk:8u312-jdk-oracle
MAINTAINER yangyu
ENV JAVA_OPTS='-Xmx512m -Xms256m'
ADD ./keeper-provider/target/keeper-provider.jar /opt/app.jar
EXPOSE 8080
ENTRYPOINT java ${JAVA_OPTS} -Djava.security.egd=file:/dev/./urandom -Duser.timezone=Asia/Shanghai -Dfile.encoding=UTF-8 -jar /opt/app.jar

image-20220916213444720

jenkisn配置

创建项目

image-20220916212413265

编写配置

image-20220916212553048

流水线语法

最后一个语法我们使用的是kuboard，jenkins构建完成通知kuboard，他去更新pod拉取最新的镜像

image-20220916213739803

image-20220916213834988

    pipeline {
    agent any
    stages {
        stage('拉取代码') {
            steps {
                script{
                  checkout([$class: 'GitSCM', branches: [[name: '${tag}']], extensions: [], userRemoteConfigs: [[credentialsId: '100b584e-7f67-466f-8b93-9b9038e117a0', url: 'xxxxxxx']]])
                }
            }
        }
        stage('编译打包') {
            steps {
              sh "cd /root/.jenkins/workspace/k8s-pipeline-keeper"
              sh "mvn clean compile package  install -Dmaven.test.skip=true -D profiles.active=stage"
            }
        }
        stage('构建镜像') {
            steps {
              sh "docker build -t keeper-provider:${tag} ." //上一步已经切换到了Dockerfile所在的目录
            }
        }
        stage ("上传镜像到harbor仓库") {
            steps {
                sh "docker login --username=xxxx --password=xxx   xxxxharbor仓库地址"
                sh "docker tag keeper-provider:${tag}  镜像仓库地址:${tag}"
                sh "docker push 镜像仓库地址:${tag}  && docker rmi  镜像仓库地址:${tag} keeper-provider:${tag}" 
            }
        }
        stage ("kobard") {
            steps {
                sh '''curl -X PUT \\
                -H "content-type: application/json" \\
                -H "Cookie: KuboardUsername=admin; KuboardAccessKey=8rex2s2yhmdn.76bwpcmtrypjcwczw58msiiwar3b8364" \\
                -d \'{"kind":"deployments","namespace":"bimuyu","name":"keeper-provider","images":{"镜像仓库地":"镜像仓库地址:\'${tag}\'"}}\' \\
                "http://192.168.2.216/kuboard-api/cluster/bimuyu/kind/CICDApi/admin/resource/updateImageTag"'''
            }
        }
    }
}

image-20220916213037131

遇到到问题jenkins

images":{"镜像仓库地":"镜像仓库地址:${tag}"}}\'  错误的

images":{"镜像仓库地":"镜像仓库地址:\'${tag}\'"}}\'   被转义的，可以使用

image-20220916213215025

最后构建

image-20220916213923832

查看pod有没有变化，或者重启

tag} && docker rmi 镜像仓库地址: t a g k e e p e r − p r o v i d e r : {tag} keeper-provider: tagkeeper−provider:{tag}"
}
}
stage (“kobard”) {
steps {
sh ‘’‘curl -X PUT \
-H “content-type: application/json” \
-H “Cookie: KuboardUsername=admin; KuboardAccessKey=8rex2s2yhmdn.76bwpcmtrypjcwczw58msiiwar3b8364” \
-d ‘{“kind”:“deployments”,“namespace”:“bimuyu”,“name”:“keeper-provider”,“images”:{“镜像仓库地”:"镜像仓库地址:’${tag}’"}}’ \
“http://192.168.2.216/kuboard-api/cluster/bimuyu/kind/CICDApi/admin/resource/updateImageTag”‘’’
}
}
}
}


[外链图片转存中...(img-oCuvHCkQ-1663409613313)]

### 遇到到问题jenkins

```shell
images":{"镜像仓库地":"镜像仓库地址:${tag}"}}\'  错误的

images":{"镜像仓库地":"镜像仓库地址:\'${tag}\'"}}\'   被转义的，可以使用

[外链图片转存中…(img-e6odmmn9-1663409613313)]

最后构建

[外链图片转存中…(img-TyqyEjLQ-1663409613313)]

查看pod有没有变化，或者重启

image-20220916214029838

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