From 6b1bd30fc7aa4cc68fea9789a37799b7862b132b Mon Sep 17 00:00:00 2001 From: wxin <15253413025@163.com> Date: Sun, 11 Aug 2024 21:19:49 +0800 Subject: [PATCH] =?UTF-8?q?=E4=B8=8A=E4=BC=A0=E6=96=87=E4=BB=B6=E8=87=B3?= =?UTF-8?q?=20kubernetes-MD?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../基于kubeadm部署kubernetes集群.md | 215 ++++ .../基于kubeadm部署kubernetes集群1-25版本.md | 953 ++++++++++++++++++ .../基于kubernetes部署Prometheus和Grafana.md | 684 +++++++++++++ 3 files changed, 1852 insertions(+) create mode 100644 kubernetes-MD/基于kubeadm部署kubernetes集群.md create mode 100644 kubernetes-MD/基于kubeadm部署kubernetes集群1-25版本.md create mode 100644 kubernetes-MD/基于kubernetes部署Prometheus和Grafana.md diff --git a/kubernetes-MD/基于kubeadm部署kubernetes集群.md b/kubernetes-MD/基于kubeadm部署kubernetes集群.md new file mode 100644 index 0000000..708eb3c --- /dev/null +++ b/kubernetes-MD/基于kubeadm部署kubernetes集群.md @@ -0,0 +1,215 @@ +

基于kubeadm部署kubernetes集群

+ +------ + +## 一：环境准备 + +三台服务器，一台master，两台node,master节点必须是2核cpu + +| 节点名称 | IP地址 | +| :------: | :--------: | +| master | 10.0.0.220 | +| node-1 | 10.0.0.221 | +| node-2 | 10.0.0.222 | +| node-3 | 10.0.0.223 | + +#### 1.所有服务器关闭防火墙和selinux + +```shell +[root@localhost ~]# systemctl stop firewalld +[root@localhost ~]# systemctl disable firewalld +[root@localhost ~]# setenforce 0 +[root@localhost ~]# sed -i '/^SELINUX=/c SELINUX=disabled/' /etc/selinux/config +[root@localhost ~]# swapoff -a　　临时关闭 +[root@localhost ~]# sed -i 's/.*swap.*/#&/' /etc/fstab　永久关闭 +注意： + 关闭所有服务器的交换分区 + 所有节点操作 +``` + +#### 2.保证yum仓库可用 + +```shell +[root@localhost ~]# yum clean all +[root@localhost ~]# yum makecache fast +注意： + 使用国内yum源 + 所有节点操作 +``` + +#### 3.修改主机名 + +```shell +[root@localhost ~]# hostnamectl set-hostname master +[root@localhost ~]# hostnamectl set-hostname node-1 +[root@localhost ~]# hostnamectl set-hostname node-2 +[root@localhost ~]# hostnamectl set-hostname node-3 +注意： + 所有节点操作 +``` + +#### 4.添加本地解析 + +```shell +[root@master ~]# cat >> /etc/hosts <> /etc/yum.repos.d/kubernetes.repo </etc/sysconfig/kubelet<> /etc/sysctl.conf < 4m45s v1.23.1 +node-2 Ready 4m40s v1.23.1 +node-3 Ready 4m46s v1.23.1 +``` + + + + + + + + + diff --git a/kubernetes-MD/基于kubeadm部署kubernetes集群1-25版本.md b/kubernetes-MD/基于kubeadm部署kubernetes集群1-25版本.md new file mode 100644 index 0000000..670a3f0 --- /dev/null +++ b/kubernetes-MD/基于kubeadm部署kubernetes集群1-25版本.md @@ -0,0 +1,953 @@ +

基于kubeadm部署kubernetes集群

+ + + +------ + +## 一：环境准备 + +三台服务器，一台master，两台node,master节点必须是2核cpu + +| 节点名称 | IP地址 | +| :------: | :--------: | +| master | 10.0.0.220 | +| node-1 | 10.0.0.221 | +| node-2 | 10.0.0.222 | +| node-3 | 10.0.0.223 | + +#### 1.所有服务器关闭防火墙和selinux + +```shell +[root@localhost ~]# systemctl stop firewalld +[root@localhost ~]# systemctl disable firewalld +[root@localhost ~]# setenforce 0 +[root@localhost ~]# sed -i '/^SELINUX=/c SELINUX=disabled/' /etc/selinux/config +[root@localhost ~]# swapoff -a　　临时关闭 +[root@localhost ~]# sed -i 's/.*swap.*/#&/' /etc/fstab　永久关闭 +注意： + 关闭所有服务器的交换分区 + 所有节点操作 +``` + +#### 2.保证yum仓库可用 + +```shell +[root@localhost ~]# yum clean all +[root@localhost ~]# yum makecache fast +注意： + 使用国内yum源 + 所有节点操作 +``` + +#### 3.修改主机名 + +```shell +[root@localhost ~]# hostnamectl set-hostname master +[root@localhost ~]# hostnamectl set-hostname node-1 +[root@localhost ~]# hostnamectl set-hostname node-2 +[root@localhost ~]# hostnamectl set-hostname node-3 +注意： + 所有节点操作 +``` + +#### 4.添加本地解析 + +```shell +[root@master ~]# cat >> /etc/hosts <> /etc/yum.repos.d/kubernetes.repo <> /etc/yum.repos.d/kubernetes.repo <> /etc/sysctl.conf < 2m7s v1.25.0 +node-2 Ready 50s v1.25.0 +node-3 Ready 110s v1.25.0 +``` + +## 三：部署Dashboard + +#### 1.kube-proxy 开启 ipvs + +```shell +[root@master ~]# kubectl get configmap kube-proxy -n kube-system -o yaml > kube-proxy-configmap.yaml +[root@master ~]# sed -i 's/mode: ""/mode: "ipvs"/' kube-proxy-configmap.yaml +[root@master ~]# kubectl apply -f kube-proxy-configmap.yaml +[root@master ~]# rm -f kube-proxy-configmap.yaml +[root@master ~]# kubectl get pod -n kube-system | grep kube-proxy | awk '{system("kubectl delete pod "$1" -n kube-system")}' +``` + +#### 2.Dashboard安装脚本 + +```shell +[root@master ~]# cat dashboard.yaml +# Copyright 2017 The Kubernetes Authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +apiVersion: v1 +kind: Namespace +metadata: + name: kubernetes-dashboard + +--- + +apiVersion: v1 +kind: ServiceAccount +metadata: + labels: + k8s-app: kubernetes-dashboard + name: kubernetes-dashboard + namespace: kubernetes-dashboard + +--- + +kind: Service +apiVersion: v1 +metadata: + labels: + k8s-app: kubernetes-dashboard + name: kubernetes-dashboard + namespace: kubernetes-dashboard +spec: + type: NodePort + ports: + - port: 443 + targetPort: 8443 + selector: + k8s-app: kubernetes-dashboard + +--- + +apiVersion: v1 +kind: Secret +metadata: + labels: + k8s-app: kubernetes-dashboard + name: kubernetes-dashboard-certs + namespace: kubernetes-dashboard +type: Opaque + +--- + +apiVersion: v1 +kind: Secret +metadata: + labels: + k8s-app: kubernetes-dashboard + name: kubernetes-dashboard-csrf + namespace: kubernetes-dashboard +type: Opaque +data: + csrf: "" + +--- + +apiVersion: v1 +kind: Secret +metadata: + labels: + k8s-app: kubernetes-dashboard + name: kubernetes-dashboard-key-holder + namespace: kubernetes-dashboard +type: Opaque + +--- + +kind: ConfigMap +apiVersion: v1 +metadata: + labels: + k8s-app: kubernetes-dashboard + name: kubernetes-dashboard-settings + namespace: kubernetes-dashboard + +--- + +kind: Role +apiVersion: rbac.authorization.k8s.io/v1 +metadata: + labels: + k8s-app: kubernetes-dashboard + name: kubernetes-dashboard + namespace: kubernetes-dashboard +rules: + # Allow Dashboard to get, update and delete Dashboard exclusive secrets. + - apiGroups: [""] + resources: ["secrets"] + resourceNames: ["kubernetes-dashboard-key-holder", "kubernetes-dashboard-certs", "kubernetes-dashboard-csrf"] + verbs: ["get", "update", "delete"] + # Allow Dashboard to get and update 'kubernetes-dashboard-settings' config map. + - apiGroups: [""] + resources: ["configmaps"] + resourceNames: ["kubernetes-dashboard-settings"] + verbs: ["get", "update"] + # Allow Dashboard to get metrics. + - apiGroups: [""] + resources: ["services"] + resourceNames: ["heapster", "dashboard-metrics-scraper"] + verbs: ["proxy"] + - apiGroups: [""] + resources: ["services/proxy"] + resourceNames: ["heapster", "http:heapster:", "https:heapster:", "dashboard-metrics-scraper", "http:dashboard-metrics-scraper"] + verbs: ["get"] + +--- + +kind: ClusterRole +apiVersion: rbac.authorization.k8s.io/v1 +metadata: + labels: + k8s-app: kubernetes-dashboard + name: kubernetes-dashboard +rules: + # Allow Metrics Scraper to get metrics from the Metrics server + - apiGroups: ["metrics.k8s.io"] + resources: ["pods", "nodes"] + verbs: ["get", "list", "watch"] + +--- + +apiVersion: rbac.authorization.k8s.io/v1 +kind: RoleBinding +metadata: + labels: + k8s-app: kubernetes-dashboard + name: kubernetes-dashboard + namespace: kubernetes-dashboard +roleRef: + apiGroup: rbac.authorization.k8s.io + kind: Role + name: kubernetes-dashboard +subjects: + - kind: ServiceAccount + name: kubernetes-dashboard + namespace: kubernetes-dashboard + +--- + +apiVersion: rbac.authorization.k8s.io/v1 +kind: ClusterRoleBinding +metadata: + name: kubernetes-dashboard +roleRef: + apiGroup: rbac.authorization.k8s.io + kind: ClusterRole + name: kubernetes-dashboard +subjects: + - kind: ServiceAccount + name: kubernetes-dashboard + namespace: kubernetes-dashboard + +--- + +kind: Deployment +apiVersion: apps/v1 +metadata: + labels: + k8s-app: kubernetes-dashboard + name: kubernetes-dashboard + namespace: kubernetes-dashboard +spec: + replicas: 1 + revisionHistoryLimit: 10 + selector: + matchLabels: + k8s-app: kubernetes-dashboard + template: + metadata: + labels: + k8s-app: kubernetes-dashboard + spec: + securityContext: + seccompProfile: + type: RuntimeDefault + containers: + - name: kubernetes-dashboard + image: kubernetesui/dashboard:v2.6.1 + imagePullPolicy: Always + ports: + - containerPort: 8443 + protocol: TCP + args: + - --auto-generate-certificates + - --namespace=kubernetes-dashboard + # Uncomment the following line to manually specify Kubernetes API server Host + # If not specified, Dashboard will attempt to auto discover the API server and connect + # to it. Uncomment only if the default does not work. + # - --apiserver-host=http://my-address:port + volumeMounts: + - name: kubernetes-dashboard-certs + mountPath: /certs + # Create on-disk volume to store exec logs + - mountPath: /tmp + name: tmp-volume + livenessProbe: + httpGet: + scheme: HTTPS + path: / + port: 8443 + initialDelaySeconds: 30 + timeoutSeconds: 30 + securityContext: + allowPrivilegeEscalation: false + readOnlyRootFilesystem: true + runAsUser: 1001 + runAsGroup: 2001 + volumes: + - name: kubernetes-dashboard-certs + secret: + secretName: kubernetes-dashboard-certs + - name: tmp-volume + emptyDir: {} + serviceAccountName: kubernetes-dashboard + nodeSelector: + "kubernetes.io/os": linux + # Comment the following tolerations if Dashboard must not be deployed on master + tolerations: + - key: node-role.kubernetes.io/master + effect: NoSchedule + +--- + +kind: Service +apiVersion: v1 +metadata: + labels: + k8s-app: dashboard-metrics-scraper + name: dashboard-metrics-scraper + namespace: kubernetes-dashboard +spec: + ports: + - port: 8000 + targetPort: 8000 + selector: + k8s-app: dashboard-metrics-scraper + +--- + +kind: Deployment +apiVersion: apps/v1 +metadata: + labels: + k8s-app: dashboard-metrics-scraper + name: dashboard-metrics-scraper + namespace: kubernetes-dashboard +spec: + replicas: 1 + revisionHistoryLimit: 10 + selector: + matchLabels: + k8s-app: dashboard-metrics-scraper + template: + metadata: + labels: + k8s-app: dashboard-metrics-scraper + spec: + securityContext: + seccompProfile: + type: RuntimeDefault + containers: + - name: dashboard-metrics-scraper + image: kubernetesui/metrics-scraper:v1.0.8 + ports: + - containerPort: 8000 + protocol: TCP + livenessProbe: + httpGet: + scheme: HTTP + path: / + port: 8000 + initialDelaySeconds: 30 + timeoutSeconds: 30 + volumeMounts: + - mountPath: /tmp + name: tmp-volume + securityContext: + allowPrivilegeEscalation: false + readOnlyRootFilesystem: true + runAsUser: 1001 + runAsGroup: 2001 + serviceAccountName: kubernetes-dashboard + nodeSelector: + "kubernetes.io/os": linux + # Comment the following tolerations if Dashboard must not be deployed on master + tolerations: + - key: node-role.kubernetes.io/master + effect: NoSchedule + volumes: + - name: tmp-volume + emptyDir: {} +``` + +#### 3.创建证书 + +```shell +[root@k8s-master ~]# mkdir dashboard-certs +[root@k8s-master ~]# cd dashboard-certs/ +#创建命名空间 +[root@k8s-master ~]# kubectl create namespace kubernetes-dashboard +# 创建私钥key文件 +[root@k8s-master ~]# openssl genrsa -out dashboard.key 2048 +#证书请求 +[root@k8s-master ~]# openssl req -days 36000 -new -out dashboard.csr -key dashboard.key -subj '/CN=dashboard-cert' +#自签证书 +[root@k8s-master ~]# openssl x509 -req -in dashboard.csr -signkey dashboard.key -out dashboard.crt +#创建kubernetes-dashboard-certs对象 +[root@k8s-master ~]# kubectl create secret generic kubernetes-dashboard-certs --from-file=dashboard.key --from-file=dashboard.crt -n kubernetes-dashboard +``` + +#### 4.创建管理员 + +```shell +创建账户 +[root@k8s-master ~]# vim dashboard-admin.yaml +apiVersion: v1 +kind: ServiceAccount +metadata: + labels: + k8s-app: kubernetes-dashboard + name: dashboard-admin + namespace: kubernetes-dashboard +#保存退出后执行 +[root@k8s-master ~]# kubectl create -f dashboard-admin.yaml +为用户分配权限 +[root@k8s-master ~]# vim dashboard-admin-bind-cluster-role.yaml +apiVersion: rbac.authorization.k8s.io/v1 +kind: ClusterRoleBinding +metadata: + name: dashboard-admin-bind-cluster-role + labels: + k8s-app: kubernetes-dashboard +roleRef: + apiGroup: rbac.authorization.k8s.io + kind: ClusterRole + name: cluster-admin +subjects: +- kind: ServiceAccount + name: dashboard-admin + namespace: kubernetes-dashboard +#保存退出后执行 +[root@k8s-master ~]# kubectl create -f dashboard-admin-bind-cluster-role.yaml +``` + +#### 5.安装 Dashboard + +```shell +[root@master dashboard-certs]# kubectl create -f dashboard.yaml +``` + +#### 6.获取token + +```shell +[root@master dashboard-certs]# kubectl -n kubernetes-dashboard create token dashboard-admin +eyJhbGciOiJSUzI1NiIsImtpZCI6InlBck13aTFMR2daR3htTmxSdG5XbGJjOVFLWmdMZlgzRU10TmJWRFNEMk0ifQ.eyJhdWQiOlsiaHR0cHM6Ly9rdWJlcm5ldGVzLmRlZmF1bHQuc3ZjLmNsdXN0ZXIubG9jYWwiXSwiZXhwIjoxNjYyMjE0MTA3LCJpYXQiOjE2NjIyMTA1MDcsImlzcyI6Imh0dHBzOi8va3ViZXJuZXRlcy5kZWZhdWx0LnN2Yy5jbHVzdGVyLmxvY2FsIiwia3ViZXJuZXRlcy5pbyI6eyJuYW1lc3BhY2UiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsInNlcnZpY2VhY2NvdW50Ijp7Im5hbWUiOiJkYXNoYm9hcmQtYWRtaW4iLCJ1aWQiOiIwOTRhYWI2NC05NTkyLTRjYTctOWI3MS0yNDEwMmI5ODA1YjcifX0sIm5iZiI6MTY2MjIxMDUwNywic3ViIjoic3lzdGVtOnNlcnZpY2VhY2NvdW50Omt1YmVybmV0ZXMtZGFzaGJvYXJkOmRhc2hib2FyZC1hZG1pbiJ9.MQfc83l08PsAqmBHRzwgE_TsZGct0Sul1lM7Ks0ssf29DtXt22u9hHisvaLmQ64sNsvb_D7r47kDDTxZPbIJP_A2mBuHFqy_dnryUmqlTj7KFJm4PdObwiMTlnBch-v7HqxJKLuA6XXLxtpNrbLWqqG47Bc2kvvcF4BzSkiDhe-s5L0PS-WY753QjV0C9v63G8KJDxkQEGVC4PjqfXSclLi_jvIe4n3UqhUNHPl85JWgBhJHTTAei3Ztp7IMweztR_P30p6BiXEF0Kmcv8Nb7Xsk2dx5avYyiTRZTpq4pBkvAMKlCbXyKufh78mil_oNdaA8Q_AeFWFwgDx9UrGoFA +``` + +#### 7.创建kubeconfig + +```shell +获取certificate-authority-data： +[root@master ~]# CURRENT_CONTEXT=$(kubectl config current-context) +[root@master ~]# CURRENT_CLUSTER=$(kubectl config view --raw -o=go-template='{{range .contexts}}{{if eq .name "'''${CURRENT_CONTEXT}'''"}}{{ index .context "cluster" }}{{end}}{{end}}') +[root@master ~]# kubectl config view --raw -o=go-template='{{range .clusters}}{{if eq .name "'''${CURRENT_CLUSTER}'''"}}"{{with index .cluster "certificate-authority-data" }}{{.}}{{end}}"{{ end }}{{ end }}' +"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" + +[root@master ~]# cat config +apiVersion: v1 +clusters: +- cluster: + certificate-authority-data: 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 + server: https://10.0.2.150:6443 + name: kubernetes +contexts: +- context: + cluster: kubernetes + user: dashboard-admin + name: dashboard-admin@kubernetes +current-context: dashboard-admin@kubernetes +kind: Config +preferences: {} +users: +- name: dashboard-admin + user: + token: eyJhbGciOiJSUzI1NiIsImtpZCI6InlBck13aTFMR2daR3htTmxSdG5XbGJjOVFLWmdMZlgzRU10TmJWRFNEMk0ifQ.eyJhdWQiOlsiaHR0cHM6Ly9rdWJlcm5ldGVzLmRlZmF1bHQuc3ZjLmNsdXN0ZXIubG9jYWwiXSwiZXhwIjoxNjYyMjE0MjcwLCJpYXQiOjE2NjIyMTA2NzAsImlzcyI6Imh0dHBzOi8va3ViZXJuZXRlcy5kZWZhdWx0LnN2Yy5jbHVzdGVyLmxvY2FsIiwia3ViZXJuZXRlcy5pbyI6eyJuYW1lc3BhY2UiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsInNlcnZpY2VhY2NvdW50Ijp7Im5hbWUiOiJkYXNoYm9hcmQtYWRtaW4iLCJ1aWQiOiIwOTRhYWI2NC05NTkyLTRjYTctOWI3MS0yNDEwMmI5ODA1YjcifX0sIm5iZiI6MTY2MjIxMDY3MCwic3ViIjoic3lzdGVtOnNlcnZpY2VhY2NvdW50Omt1YmVybmV0ZXMtZGFzaGJvYXJkOmRhc2hib2FyZC1hZG1pbiJ9.bHK9jgpCAQIAxwurh05zzndo22hWEzoDnfFRS3VDWAfoD0YOsTF6RbHFSshn0Vm-Xv1sEIgmVkjgftP2Pq_saMs-WdgHfTLz2CjxWpkYV4WQcMs4WJq9Lx5SQeNxw9mEh8c085nnx368GWkENHSsldKP-O6YliWQAP8qpOiUWrJqhteVQi0GD7EYmOPlnKFZF2YKaROYFvn9P8JiCL8rRTZ5GUYIty9LRLkh3daFXj67krk4v3pNLqdHcKKwkv8vFN4hl6RbgA3nY +``` + diff --git a/kubernetes-MD/基于kubernetes部署Prometheus和Grafana.md b/kubernetes-MD/基于kubernetes部署Prometheus和Grafana.md new file mode 100644 index 0000000..4257006 --- /dev/null +++ b/kubernetes-MD/基于kubernetes部署Prometheus和Grafana.md @@ -0,0 +1,684 @@ +

基于kubernetes部署Prometheus和Grafana

+ + + +------ + +## 一：环境准备 + +#### 1.kubernetes集群正常 + +```shell +[root@master ~]# kubectl get node +NAME STATUS ROLES AGE VERSION +master Ready control-plane,master 36d v1.23.1 +node-1 Ready 36d v1.23.1 +node-2 Ready 36d v1.23.1 +node-3 Ready 36d v1.23.1 +``` + +#### 2.harbor仓库正常 + +![image-20220602010601512](%E5%9F%BA%E4%BA%8Ekubernetes%E9%83%A8%E7%BD%B2Prometheus%E5%92%8CGrafana.assets/image-20220602010601512.png) + +## 二：Prometheus部署 + +#### 1.node-exporter部署 + +​ node-exporter可以采集机器（物理机、虚拟机、云主机等）的监控指标数据，能够采集到的指标包括CPU, 内存，磁盘，网络，文件数等信息 + +创建监控namespace： + +```shell +[root@master ~]# kubectl create ns monitor-sa +``` + +创建node-export.yaml： + +```shell +[root@master ~]# vim node-export.yaml +apiVersion: apps/v1 +kind: DaemonSet # 可以保证k8s集群的每个节点都运行完全一样的pod +metadata: + name: node-exporter + namespace: monitor-sa + labels: + name: node-exporter +spec: + selector: + matchLabels: + name: node-exporter + template: + metadata: + labels: + name: node-exporter + spec: + hostPID: true + hostIPC: true + hostNetwork: true + containers: + - name: node-exporter + image: prom/node-exporter:v0.16.0 + #image: 10.0.0.230/xingdian/node-exporter:v0.16.0 + ports: + - containerPort: 9100 + resources: + requests: + cpu: 0.15 # 这个容器运行至少需要0.15核cpu + securityContext: + privileged: true # 开启特权模式 + args: + - --path.procfs + - /host/proc + - --path.sysfs + - /host/sys + - --collector.filesystem.ignored-mount-points + - '"^/(sys|proc|dev|host|etc)($|/)"' + volumeMounts: + - name: dev + mountPath: /host/dev + - name: proc + mountPath: /host/proc + - name: sys + mountPath: /host/sys + - name: rootfs + mountPath: /rootfs + tolerations: + - key: "node-role.kubernetes.io/master" + operator: "Exists" + effect: "NoSchedule" + volumes: + - name: proc + hostPath: + path: /proc + - name: dev + hostPath: + path: /dev + - name: sys + hostPath: + path: /sys + - name: rootfs + hostPath: + path: / +``` + +注意： + +​ hostNetwork、hostIPC、hostPID都为True时，表示这个Pod里的所有容器，会直接使用宿主机的网络，直接与宿主机进行IPC（进程间通信）通信，可以看到宿主机里正在运行的所有进程。加入了hostNetwork:true会直接将我们的宿主机的9100端口映射出来，从而不需要创建service 在我们的宿主机上就会有一个9100的端口 + +创建： + +```shell +[root@master ~]# kubectl apply -f node-export.yaml +``` + +查看node-exporter是否部署成功： + +```shell +[root@master ~]# kubectl get pods -n monitor-sa -o wide +NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES +node-exporter-2cbrg 1/1 Running 0 34m 10.0.0.220 master +node-exporter-7rrbh 1/1 Running 0 34m 10.0.0.222 node-2 +node-exporter-96v29 1/1 Running 0 34m 10.0.0.221 node-1 +node-exporter-bf2j8 1/1 Running 0 34m 10.0.0.223 node-3 +``` + +注意： + +​ node-export默认的监听端口是9100，可以看到当前主机获取到的所有监控数据 + +```shell +[root@master ~]# curl http://10.0.0.220:9100/metrics | grep node_cpu_seconds + % Total % Received % Xferd Average Speed Time Time Time Current + Dload Upload Total Spent Left Speed + 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0# HELP node_cpu_seconds_total Seconds the cpus spent in each mode. +# TYPE node_cpu_seconds_total counter +node_cpu_seconds_total{cpu="0",mode="idle"} 8398.49 +node_cpu_seconds_total{cpu="0",mode="iowait"} 1.54 +node_cpu_seconds_total{cpu="0",mode="irq"} 0 +node_cpu_seconds_total{cpu="0",mode="nice"} 0 +node_cpu_seconds_total{cpu="0",mode="softirq"} 17.2 +node_cpu_seconds_total{cpu="0",mode="steal"} 0 +node_cpu_seconds_total{cpu="0",mode="system"} 70.61 +node_cpu_seconds_total{cpu="0",mode="user"} 187.04 +node_cpu_seconds_total{cpu="1",mode="idle"} 8403.82 +node_cpu_seconds_total{cpu="1",mode="iowait"} 4.95 +node_cpu_seconds_total{cpu="1",mode="irq"} 0 +node_cpu_seconds_total{cpu="1",mode="nice"} 0 +node_cpu_seconds_total{cpu="1",mode="softirq"} 16.75 +node_cpu_seconds_total{cpu="1",mode="steal"} 0 +node_cpu_seconds_total{cpu="1",mode="system"} 71.26 +node_cpu_seconds_total{cpu="1",mode="user"} 190.27 +100 74016 100 74016 0 0 5878k 0 --:--:-- --:--:-- --:--:-- 6023k + +[root@master ~]# curl http://10.0.0.220:9100/metrics | grep node_load + % Total % Received % Xferd Average Speed Time Time Time Current + Dload Upload Total Spent Left Speed + 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0# HELP node_loa +1 1m load average. +# TYPE node_load1 gauge +node_load1 0.2 +# HELP node_load15 15m load average. +# TYPE node_load15 gauge +node_load15 0.22 +# HELP node_load5 5m load average. +# TYPE node_load5 gauge +node_load5 0.2 +100 74044 100 74044 0 0 8604k 0 --:--:-- --:--:-- --:--:-- 9038k +``` + +#### 2.Prometheus安装 + +创建sa账号，对sa做rbac授权： + +```shell +# 创建一个sa账号monitor +[root@master ~]# kubectl create serviceaccount monitor -n monitor-sa + +# 把sa账号monitor通过clusterrolebing绑定到clusterrole上 +[root@master ~]# kubectl create clusterrolebinding monitor-clusterrolebinding -n monitor-sa --clusterrole=cluster-admin --serviceaccount=monitor-sa:monitor +``` + +创建prometheus数据存储目录： + +```shell +# 将prometheus调度到node-1节点 +[root@node-1 ~]# mkdir /data && chmod 777 /data +``` + +创建一个configmap存储卷，用来存放prometheus配置信息： + +```shell +[root@master ~]# vim prometheus-cfg.yaml +--- +kind: ConfigMap +apiVersion: v1 +metadata: + labels: + app: prometheus + name: prometheus-config + namespace: monitor-sa +data: + prometheus.yml: | + global: + scrape_interval: 15s + scrape_timeout: 10s + evaluation_interval: 1m + scrape_configs: + - job_name: 'kubernetes-node' + kubernetes_sd_configs: + - role: node + relabel_configs: + - source_labels: [__address__] + regex: '(.*):10250' + replacement: '${1}:9100' + target_label: __address__ + action: replace + - action: labelmap + regex: __meta_kubernetes_node_label_(.+) + - job_name: 'kubernetes-node-cadvisor' + kubernetes_sd_configs: + - role: node + scheme: https + tls_config: + ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt + bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token + relabel_configs: + - action: labelmap + regex: __meta_kubernetes_node_label_(.+) + - target_label: __address__ + replacement: kubernetes.default.svc:443 + - source_labels: [__meta_kubernetes_node_name] + regex: (.+) + target_label: __metrics_path__ + replacement: /api/v1/nodes/${1}/proxy/metrics/cadvisor + - job_name: 'kubernetes-apiserver' + kubernetes_sd_configs: + - role: endpoints + scheme: https + tls_config: + ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt + bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token + relabel_configs: + - source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name] + action: keep + regex: default;kubernetes;https + - job_name: 'kubernetes-service-endpoints' + kubernetes_sd_configs: + - role: endpoints + relabel_configs: + - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scrape] + action: keep + regex: true + - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scheme] + action: replace + target_label: __scheme__ + regex: (https?) + - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_path] + action: replace + target_label: __metrics_path__ + regex: (.+) + - source_labels: [__address__, __meta_kubernetes_service_annotation_prometheus_io_port] + action: replace + target_label: __address__ + regex: ([^:]+)(?::\d+)?;(\d+) + replacement: $1:$2 + - action: labelmap + regex: __meta_kubernetes_service_label_(.+) + - source_labels: [__meta_kubernetes_namespace] + action: replace + target_label: kubernetes_namespace + - source_labels: [__meta_kubernetes_service_name] + action: replace + target_label: kubernetes_name +``` + +创建： + +```shell +[root@master ~]# kubectl apply -f prometheus-cfg.yaml +configmap/prometheus-config created +``` + +配置详解： + +```shell +--- +kind: ConfigMap +apiVersion: v1 +metadata: + labels: + app: prometheus + name: prometheus-config + namespace: monitor-sa +data: + prometheus.yml: | + global: + scrape_interval: 15s #采集目标主机监控据的时间间隔 + scrape_timeout: 10s # 数据采集超时时间，默认10s + evaluation_interval: 1m #触发告警检测的时间，默认是1m + scrape_configs: # 配置数据源，称为target，每个target用job_name命名。又分为静态配置和服务发现 + - job_name: 'kubernetes-node' + kubernetes_sd_configs: # 使用的是k8s的服务发现 + - role: node # 使用node角色，它使用默认的kubelet提供的http端口来发现集群中每个node节点 + relabel_configs: # 重新标记 + - source_labels: [__address__] # 配置的原始标签，匹配地址 + regex: '(.*):10250' #匹配带有10250端口的url + replacement: '${1}:9100' #把匹配到的ip:10250的ip保留 + target_label: __address__ #新生成的url是${1}获取到的ip:9100 + action: replace # 动作替换 + - action: labelmap + regex: __meta_kubernetes_node_label_(.+) #匹配到下面正则表达式的标签会被保留,如果不做regex正则的话，默认只是会显示instance标签 + - job_name: 'kubernetes-node-cadvisor' # 抓取cAdvisor数据，是获取kubelet上/metrics/cadvisor接口数据来获取容器的资源使用情况 + kubernetes_sd_configs: + - role: node + scheme: https + tls_config: + ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt + bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token + relabel_configs: + - action: labelmap # 把匹配到的标签保留 + regex: __meta_kubernetes_node_label_(.+) #保留匹配到的具有__meta_kubernetes_node_label的标签 + - target_label: __address__ # 获取到的地址：__address__="192.168.40.180:10250" + replacement: kubernetes.default.svc:443 # 把获取到的地址替换成新的地址kubernetes.default.svc:443 + - source_labels: [__meta_kubernetes_node_name] + regex: (.+) # 把原始标签中__meta_kubernetes_node_name值匹配到 + target_label: __metrics_path__ #获取__metrics_path__对应的值 + replacement: /api/v1/nodes/${1}/proxy/metrics/cadvisor + # 把metrics替换成新的值api/v1/nodes/k8s-master1/proxy/metrics/cadvisor + # ${1}是__meta_kubernetes_node_name获取到的值 + # 新的url就是https://kubernetes.default.svc:443/api/v1/nodes/k8s-master1/proxy/metrics/cadvisor + - job_name: 'kubernetes-apiserver' + kubernetes_sd_configs: + - role: endpoints # 使用k8s中的endpoint服务发现，采集apiserver 6443端口获取到的数据 + scheme: https + tls_config: + ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt + bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token + relabel_configs: + - source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name] + # endpoint这个对象的名称空间,endpoint对象的服务名,exnpoint的端口名称 + action: keep # 采集满足条件的实例，其他实例不采集 + regex: default;kubernetes;https #正则匹配到的默认空间下的service名字是kubernetes，协议是https的endpoint类型保留下来 + - job_name: 'kubernetes-service-endpoints' + kubernetes_sd_configs: + - role: endpoints + relabel_configs: + - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scrape] + action: keep + regex: true + # 重新打标仅抓取到的具有 "prometheus.io/scrape: true" 的annotation的端点，意思是说如果某个service具有prometheus.io/scrape = true annotation声明则抓取，annotation本身也是键值结构，所以这里的源标签设置为键，而regex设置值true，当值匹配到regex设定的内容时则执行keep动作也就是保留，其余则丢弃。 + - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scheme] + action: replace + target_label: __scheme__ + regex: (https?) + # 重新设置scheme，匹配源标签__meta_kubernetes_service_annotation_prometheus_io_scheme也就是prometheus.io/scheme annotation，如果源标签的值匹配到regex，则把值替换为__scheme__对应的值。 + - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_path] + action: replace + target_label: __metrics_path__ + regex: (.+) + # 应用中自定义暴露的指标，也许你暴露的API接口不是/metrics这个路径，那么你可以在这个POD对应的service中做一个"prometheus.io/path = /mymetrics" 声明，上面的意思就是把你声明的这个路径赋值给__metrics_path__，其实就是让prometheus来获取自定义应用暴露的metrices的具体路径，不过这里写的要和service中做好约定，如果service中这样写 prometheus.io/app-metrics-path: '/metrics' 那么你这里就要__meta_kubernetes_service_annotation_prometheus_io_app_metrics_path这样写。 + - source_labels: [__address__, __meta_kubernetes_service_annotation_prometheus_io_port] + action: replace + target_label: __address__ + regex: ([^:]+)(?::\d+)?;(\d+) + replacement: $1:$2 + # 暴露自定义的应用的端口，就是把地址和你在service中定义的 "prometheus.io/port = " 声明做一个拼接，然后赋值给__address__，这样prometheus就能获取自定义应用的端口，然后通过这个端口再结合__metrics_path__来获取指标，如果__metrics_path__值不是默认的/metrics那么就要使用上面的标签替换来获取真正暴露的具体路径。 + - action: labelmap #保留下面匹配到的标签 + regex: __meta_kubernetes_service_label_(.+) + - source_labels: [__meta_kubernetes_namespace] + action: replace # 替换__meta_kubernetes_namespace变成kubernetes_namespace + target_label: kubernetes_namespace + - source_labels: [__meta_kubernetes_service_name] + action: replace + target_label: kubernetes_name +``` + +通过deployment部署prometheus： + +```shell +[root@master ~]# cat prometheus-deploy.yaml +--- +apiVersion: apps/v1 +kind: Deployment +metadata: + name: prometheus-server + namespace: monitor-sa + labels: + app: prometheus +spec: + replicas: 1 + selector: + matchLabels: + app: prometheus + component: server + #matchExpressions: + #- {key: app, operator: In, values: [prometheus]} + #- {key: component, operator: In, values: [server]} + template: + metadata: + labels: + app: prometheus + component: server + annotations: + prometheus.io/scrape: 'false' + spec: + nodeName: node-1 # 指定pod调度到哪个节点上 + serviceAccountName: monitor + containers: + - name: prometheus + image: prom/prometheus:v2.2.1 + #image: 10.0.0.230/xingdian/prometheus:v2.2.1 + imagePullPolicy: IfNotPresent + command: + - prometheus + - --config.file=/etc/prometheus/prometheus.yml + - --storage.tsdb.path=/prometheus # 数据存储目录 + - --storage.tsdb.retention=720h # 数据保存时长 + - --web.enable-lifecycle # 开启热加载 + ports: + - containerPort: 9090 + protocol: TCP + volumeMounts: + - mountPath: /etc/prometheus/prometheus.yml + name: prometheus-config + subPath: prometheus.yml + - mountPath: /prometheus/ + name: prometheus-storage-volume + volumes: + - name: prometheus-config + configMap: + name: prometheus-config + items: + - key: prometheus.yml + path: prometheus.yml + mode: 0644 + - name: prometheus-storage-volume + hostPath: + path: /data + type: Directory +``` + +创建： + +```shell +[root@master ~]# kubectl apply -f prometheus-deploy.yaml +deployment.apps/prometheus-server created +``` + +查看： + +```shell +[root@master ~]# kubectl get pods -o wide -n monitor-sa +NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES +prometheus-server-59cb5d648-bxwrb 1/1 Running 0 14m 10.244.2.100 node-1 +``` + +#### 3.prometheus pod创建service + +```shell +[root@master ~]# cat prometheus-svc.yaml +apiVersion: v1 +kind: Service +metadata: + name: prometheus + namespace: monitor-sa + labels: + app: prometheus +spec: + type: NodePort + ports: + - port: 9090 + targetPort: 9090 + protocol: TCP + selector: + app: prometheus + component: server +``` + +创建： + +```shell +[root@master ~]# kubectl apply -f prometheus-svc.yaml +service/prometheus created +``` + +查看service在物理机映射的端口： + +```shell +[root@master ~]# kubectl get svc -n monitor-sa +NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE +prometheus NodePort 10.106.61.80 9090:32169/TCP 32m +``` + +#### 4.web界面查看 + +![image-20220602011956600](%E5%9F%BA%E4%BA%8Ekubernetes%E9%83%A8%E7%BD%B2Prometheus%E5%92%8CGrafana.assets/image-20220602011956600.png) + +![image-20220602012012382](%E5%9F%BA%E4%BA%8Ekubernetes%E9%83%A8%E7%BD%B2Prometheus%E5%92%8CGrafana.assets/image-20220602012012382.png) + +#### 5.Prometheus热加载 + +```shell +# 为了每次修改配置文件可以热加载prometheus，也就是不停止prometheus，就可以使配置生效，想要使配置生效可用如下热加载命令： +[root@master ~]# kubectl get pods -n monitor-sa -o wide -l app=prometheus +NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES +prometheus-server-689fb8cdbc-kcsw2 1/1 Running 0 5m39s 10.244.36.70 k8s-node1 + +# 想要使配置生效可用如下命令热加载： +[root@master ~]# curl -X POST http://10.244.36.70:9090/-/reload + +# 查看log +[root@master ~]# kubectl logs -n monitor-sa prometheus-server-689fb8cdbc-kcsw2 +``` + +注意： + +```shell +# 热加载速度比较慢，可以暴力重启prometheus，如修改上面的prometheus-cfg.yaml文件之后，可执行如下强制删除： +[root@master ~]# kubectl delete -f prometheus-cfg.yaml +[root@master ~]# kubectl delete -f prometheus-deploy.yaml +# 然后再通过apply更新： +[root@master ~]# kubectl apply -f prometheus-cfg.yaml +[root@master ~]# kubectl apply -f prometheus-deploy.yaml +#注意：线上最好热加载，暴力删除可能造成监控数据的丢失 +``` + +## 三：Grafana的部署 + +#### 1.Grafana介绍 + +Grafana是一个跨平台的开源的度量分析和可视化工具，可以将采集的数据可视化的展示，并及时通知给告警接收方 + +它主要有以下六大特点： + +1）展示方式：快速灵活的客户端图表，面板插件有许多不同方式的可视化指标和日志，官方库中具有丰富的仪表盘插件，比如热图、折线图、图表等多种展示方式 + +2）数据源：Graphite，InfluxDB，OpenTSDB，Prometheus，Elasticsearch，CloudWatch和KairosDB等 + +3）通知提醒：以可视方式定义最重要指标的警报规则，Grafana将不断计算并发送通知，在数据达到阈值时通过Slack、PagerDuty等获得通知 + +4）混合展示：在同一图表中混合使用不同的数据源，可以基于每个查询指定数据源，甚至自定义数据源 + +5）注释：使用来自不同数据源的丰富事件注释图表，将鼠标悬停在事件上会显示完整的事件元数据和标记 + +#### 2.Grafana安装 + +```shell +[root@master prome]# cat grafana.yaml +apiVersion: apps/v1 +kind: Deployment +metadata: + name: monitoring-grafana + namespace: kube-system +spec: + replicas: 1 + selector: + matchLabels: + task: monitoring + k8s-app: grafana + template: + metadata: + labels: + task: monitoring + k8s-app: grafana + spec: + containers: + - name: grafana + image: 10.0.0.230/xingdian/heapster-grafana-amd64:v5.0.4 + #heleicool/heapster-grafana-amd64:v5.0.4 + ports: + - containerPort: 3000 + protocol: TCP + volumeMounts: + - mountPath: /etc/ssl/certs + name: ca-certificates + readOnly: true + - mountPath: /var + name: grafana-storage + env: + - name: INFLUXDB_HOST + value: monitoring-influxdb + - name: GF_SERVER_HTTP_PORT + value: "3000" + # The following env variables are required to make Grafana accessible via + # the kubernetes api-server proxy. On production clusters, we recommend + # removing these env variables, setup auth for grafana, and expose the grafana + # service using a LoadBalancer or a public IP. + - name: GF_AUTH_BASIC_ENABLED + value: "false" + - name: GF_AUTH_ANONYMOUS_ENABLED + value: "true" + - name: GF_AUTH_ANONYMOUS_ORG_ROLE + value: Admin + - name: GF_SERVER_ROOT_URL + # If you're only using the API Server proxy, set this value instead: + # value: /api/v1/namespaces/kube-system/services/monitoring-grafana/proxy + value: / + volumes: + - name: ca-certificates + hostPath: + path: /etc/ssl/certs + - name: grafana-storage + emptyDir: {} +--- +apiVersion: v1 +kind: Service +metadata: + labels: + # For use as a Cluster add-on (https://github.com/kubernetes/kubernetes/tree/master/cluster/addons) + # If you are NOT using this as an addon, you should comment out this line. + kubernetes.io/cluster-service: 'true' + kubernetes.io/name: monitoring-grafana + name: monitoring-grafana + namespace: kube-system +spec: + # In a production setup, we recommend accessing Grafana through an external Loadbalancer + # or through a public IP. + # type: LoadBalancer + # You could also use NodePort to expose the service at a randomly-generated port + # type: NodePort + ports: + - port: 80 + targetPort: 3000 + selector: + k8s-app: grafana + type: NodePort +``` + +创建： + +```shell +[root@master prome]# kubectl apply -f grafana.yaml +deployment.apps/monitoring-grafana created +service/monitoring-grafana created +``` + +查看： + +```shell +[root@master prome]# kubectl get pods -n kube-system -l task=monitoring -o wide +NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES +monitoring-grafana-7c5c6c7486-rbt62 1/1 Running 0 9s 10.244.1.83 node-3 +``` + +```shell +[root@master prome]# kubectl get svc -n kube-system | grep grafana +monitoring-grafana NodePort 10.101.77.194 80:30919/TCP 76s +``` + +## 四：配置Grafana + +浏览器访问： + +![image-20220602013222284](%E5%9F%BA%E4%BA%8Ekubernetes%E9%83%A8%E7%BD%B2Prometheus%E5%92%8CGrafana.assets/image-20220602013222284.png) + +添加数据源： + +![image-20220602013322234](%E5%9F%BA%E4%BA%8Ekubernetes%E9%83%A8%E7%BD%B2Prometheus%E5%92%8CGrafana.assets/image-20220602013322234.png) + +指定Prometheus地址： + +![image-20220602013441712](%E5%9F%BA%E4%BA%8Ekubernetes%E9%83%A8%E7%BD%B2Prometheus%E5%92%8CGrafana.assets/image-20220602013441712.png) + +导入监控模板： + +![image-20220602013943317](%E5%9F%BA%E4%BA%8Ekubernetes%E9%83%A8%E7%BD%B2Prometheus%E5%92%8CGrafana.assets/image-20220602013943317.png) + +![image-20220602014027197](%E5%9F%BA%E4%BA%8Ekubernetes%E9%83%A8%E7%BD%B2Prometheus%E5%92%8CGrafana.assets/image-20220602014027197.png) + +注意： + +官方下载监控模板：https://grafana.com/dashboards?dataSource=prometheus&search=kubernetes + +![image-20220602014152927](%E5%9F%BA%E4%BA%8Ekubernetes%E9%83%A8%E7%BD%B2Prometheus%E5%92%8CGrafana.assets/image-20220602014152927.png) + +![image-20220602014212551](%E5%9F%BA%E4%BA%8Ekubernetes%E9%83%A8%E7%BD%B2Prometheus%E5%92%8CGrafana.assets/image-20220602014212551.png) + +展示： + +![image-20220602014306247](%E5%9F%BA%E4%BA%8Ekubernetes%E9%83%A8%E7%BD%B2Prometheus%E5%92%8CGrafana.assets/image-20220602014306247.png) + +![image-20220602014321106](%E5%9F%BA%E4%BA%8Ekubernetes%E9%83%A8%E7%BD%B2Prometheus%E5%92%8CGrafana.assets/image-20220602014321106.png) + +![image-20220602014337431](%E5%9F%BA%E4%BA%8Ekubernetes%E9%83%A8%E7%BD%B2Prometheus%E5%92%8CGrafana.assets/image-20220602014337431.png) \ No newline at end of file