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This article will explain the example analysis of Kubernetes-dashboard+Heapster+InfluxDB+Grafana for you in detail. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

One: preface

1.kubernetes-dashboard official user Management Kubernets Cluster Visualization tool

2.cAdvisor is one of the powerful tools used to monitor the running status of containers. In the kubernetes system, cAdvisor has been integrated into the kubelet component by default. When the kubelet service starts, it automatically starts the cAdvisor service, and then cAdvisor will collect the performance indicators of the node and the container running on the node in real time. The cAdvisor home page shows the real-time running status of the host, including CPU usage, memory usage, network throughput, and file system usage. However, cAdvisor only provides stand-alone container resource utilization, while in a large-scale container cluster, you need to monitor the performance of all Node and all containers. This requires a set of tools to collect, store and display cluster performance data.

3.Heapster provides resource monitoring for the entire cluster and supports persistent data storage to InfluxDB or other storage backends. Heapster collects the resource consumption of nodes and containers from the API provided by kubelet. In addition, Heapster's / metrics API provides data in Prometheus format.

4.InfluxDB is an open source distributed database of timing, events, and metrics.

5.Grafana is an open source dashboard tool that can be used with Graphite, InfluxDB and OpenTSDB. The latest version can also be used for other data sources, such as Elasticsearch. (can be integrated with both heapster and Prometheus)

6.Zabbix is an enterprise-level open source solution based on WEB interface that provides distributed system monitoring and network monitoring. It is mostly used for the monitoring of traditional (non-micro-service) distributed systems.

The product of the age of 7.Prometheus containers. Integrated collection, storage (supporting a variety of time series databases), page display and integrated monitoring tools.

Monitoring scheme:

A.Heapster+InfluxDB+Grafana

B.Prometheus

Two: installation

1. Mirror image

K8s.gcr.io/kubernetes-dashboard-amd64:v1.8.2

Gcr.io/google_containers/heapster-amd64:v1.4.2

Gcr.io/google_containers/heapster-influxdb-amd64:v1.3.3

Gcr.io/google_containers/heapster-grafana-amd64:v4.4.3

2.yaml file

Admin-user.yaml (no modification required)

Click (here) to collapse or open

ApiVersion: v1

Kind: ServiceAccount

Metadata:

Name: admin-user

Namespace: kube-system

-

ApiVersion: rbac.authorization.k8s.io/v1

Kind: ClusterRoleBinding

Metadata:

Name: admin-user

RoleRef:

ApiGroup: rbac.authorization.k8s.io

Kind: ClusterRole

Name: cluster-admin

Subjects:

-kind: ServiceAccount

Name: admin-user

Namespace: kube-system

Dashboard.yaml (marked in orange is the place to be modified. Note that the current version needs to add-heapster-host= http://heapster configuration, otherwise the metrics cannot be obtained normally)

Click (here) to collapse or open

# 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 "ASIS" 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.

# Configuration to deploy release version of the Dashboard UI compatible with

# Kubernetes 1.8.

#

# Example usage: kubectl create-f

#-Dashboard Secret-#

ApiVersion: v1

Kind: Secret

Metadata:

Labels:

K8s-app: kubernetes-dashboard

Name: kubernetes-dashboard-certs

Namespace: kube-system

Type: Opaque

-

#-Dashboard Service Account-#

ApiVersion: v1

Kind: ServiceAccount

Metadata:

Labels:

K8s-app: kubernetes-dashboard

Name: kubernetes-dashboard

Namespace: kube-system

-

#-Dashboard Role & Role Binding-#

Kind: Role

ApiVersion: rbac.authorization.k8s.io/v1

Metadata:

Name: kubernetes-dashboard-minimal

Namespace: kube-system

Rules:

# Allow Dashboard to create 'kubernetes-dashboard-key-holder' secret.

-apiGroups: ["]

Resources: ["secrets"]

Verbs: ["create"]

# Allow Dashboard to create 'kubernetes-dashboard-settings' config map.

-apiGroups: ["]

Resources: ["configmaps"]

Verbs: ["create"]

# Allow Dashboard to get, update and delete Dashboard exclusive secrets.

-apiGroups: ["]

Resources: ["secrets"]

ResourceNames: ["kubernetes-dashboard-key-holder", "kubernetes-dashboard-certs"]

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 from heapster.

-apiGroups: ["]

Resources: ["services"]

ResourceNames: ["heapster"]

Verbs: ["proxy"]

-apiGroups: ["]

Resources: ["services/proxy"]

ResourceNames: ["heapster", "http:heapster:", "https:heapster:"]

Verbs: ["get"]

-

ApiVersion: rbac.authorization.k8s.io/v1

Kind: RoleBinding

Metadata:

Name: kubernetes-dashboard-minimal

Namespace: kube-system

RoleRef:

ApiGroup: rbac.authorization.k8s.io

Kind: Role

Name: kubernetes-dashboard-minimal

Subjects:

-kind: ServiceAccount

Name: kubernetes-dashboard

Namespace: kube-system

-

#-Dashboard Deployment-#

Kind: Deployment

ApiVersion: apps/v1beta2

Metadata:

Labels:

K8s-app: kubernetes-dashboard

Name: kubernetes-dashboard

Namespace: kube-system

Spec:

Replicas: 1

RevisionHistoryLimit: 10

Selector:

MatchLabels:

K8s-app: kubernetes-dashboard

Template:

Metadata:

Labels:

K8s-app: kubernetes-dashboard

Spec:

Containers:

-name: kubernetes-dashboard

Image: k8s.gcr.io/kubernetes-dashboard-amd64:v1.8.2

Ports:

-containerPort: 8443

Protocol: TCP

Args:

-auto-generate-certificates

# 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

-heapster-host= http://heapster

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

Volumes:

-name: kubernetes-dashboard-certs

Secret:

SecretName: kubernetes-dashboard-certs

-name: tmp-volume

EmptyDir: {}

ServiceAccountName: kubernetes-dashboard

# Comment the following tolerations if Dashboard must not be deployed on master

Tolerations:

-key: node-role.kubernetes.io/master

Effect: NoSchedule

-

#-Dashboard Service-#

Kind: Service

ApiVersion: v1

Metadata:

Labels:

K8s-app: kubernetes-dashboard

Name: kubernetes-dashboard

Namespace: kube-system

Spec:

Type: NodePort

Ports:

-port: 443

TargetPort: 8443

NodePort: 32666

Selector:

K8s-app: kubernetes-dashboard

Grafana.yaml (marked in orange as areas to be modified)

Click (here) to collapse or open

ApiVersion: extensions/v1beta1

Kind: Deployment

Metadata:

Name: monitoring-grafana

Namespace: kube-system

Spec:

Replicas: 1

Template:

Metadata:

Labels:

Task: monitoring

K8s-app: grafana

Spec:

Containers:

-name: grafana

Image: gcr.io/google_containers/heapster-grafana-amd64:v4.4.3

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

Heapster-rbac.yaml (no modification required)

Click (here) to collapse or open

Kind: ClusterRoleBinding

ApiVersion: rbac.authorization.k8s.io/v1beta1

Metadata:

Name: heapster

RoleRef:

ApiGroup: rbac.authorization.k8s.io

Kind: ClusterRole

Name: system:heapster

Subjects:

-kind: ServiceAccount

Name: heapster

Namespace: kube-system

Heapster.yaml (marked in orange as areas to be modified)

Click (here) to collapse or open

ApiVersion: v1

Kind: ServiceAccount

Metadata:

Name: heapster

Namespace: kube-system

-

ApiVersion: extensions/v1beta1

Kind: Deployment

Metadata:

Name: heapster

Namespace: kube-system

Spec:

Replicas: 1

Template:

Metadata:

Labels:

Task: monitoring

K8s-app: heapster

Spec:

ServiceAccountName: heapster

Containers:

-name: heapster

Image: gcr.io/google_containers/heapster-amd64:v1.4.2

ImagePullPolicy: IfNotPresent

Command:

-/ heapster

-source=kubernetes: https://10.116.137.196:6443

-sink=influxdb: http://monitoring-influxdb.kube-system.svc:8086

-

ApiVersion: v1

Kind: Service

Metadata:

Labels:

Task: monitoring

# 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: Heapster

Name: heapster

Namespace: kube-system

Spec:

Ports:

-port: 80

TargetPort: 8082

Selector:

K8s-app: heapster

Influxdb.yaml (marked in orange as areas to be modified)

Click (here) to collapse or open

ApiVersion: extensions/v1beta1

Kind: Deployment

Metadata:

Name: monitoring-influxdb

Namespace: kube-system

Spec:

Replicas: 1

Template:

Metadata:

Labels:

Task: monitoring

K8s-app: influxdb

Spec:

Containers:

-name: influxdb

Image: gcr.io/google_containers/heapster-influxdb-amd64:v1.3.3

VolumeMounts:

-mountPath: / data

Name: influxdb-storage

Volumes:

-name: influxdb-storage

EmptyDir: {}

-

ApiVersion: v1

Kind: Service

Metadata:

Labels:

Task: monitoring

# 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-influxdb

Name: monitoring-influxdb

Namespace: kube-system

Spec:

Ports:

-port: 8086

TargetPort: 8086

Selector:

K8s-app: influxdb

The dashboard.yaml file is derived from https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml

Other yaml. The document is derived from

After downloading https://codeload.github.com/kubernetes/heapster/zip/v1.4.2, unzip the directory\ deploy\ kube-config\ influxdb

3. Create related resources

Execute the command:

Kubectl create-f admin-user.yaml-f dashboard.yaml-f grafana.yaml-f heapster-rbac.yaml-f heapster.yaml-f influxdb.yaml

View the creation status:

Kubectl get pods-all-namespaces

Three: visit

It is recommended to use a Firefox browser to access https://nodeIp:32666

Choose to log in with a token, and the command to generate the token is as follows (please save the generated Token):

Click (here) to collapse or open

Kubectl-n kube-system describe secret $(kubectl-n kube-system get secret | grep admin-user | awk'{print $1}') | grep token

The page after successful login:

This is the end of this article on "sample Analysis of Kubernetes-dashboard+Heapster+InfluxDB+Grafana". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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