边缘计算 kubeedge部署丨建议K8s1.24以内版本使用"/>
云原生边缘计算 kubeedge部署丨建议K8s1.24以内版本使用
云原生边缘计算 kubeedge 部署
一、k8s集群部署及基础服务提供
1.1 k8s集群部署
由于kubeedge支持k8s版本版本较低，不建议使用k8s 1.24、1.25、1.26集群版本。可参考github提供的版本支持依据。
1.2 基础服务提供 负载均衡器 metallb
由于需要为cloudcore与edgecore提供通信地址，建议使用LB为cloudcore提供公网IP或K8S集群节点相同网段IP地址，实际生产中使用的是公网IP地址。
kubectl edit configmap -n kube-system kube-proxy
apiVersion: kubeproxy.config.k8s.io/v1alpha1
kind: KubeProxyConfiguration
mode: "ipvs"
ipvs:strictARP: true
kubectl rollout restart daemonset kube-proxy -n kube-system
# kubectl apply -f .13.5/config/manifests/metallb-native.yaml
创建全局IP地址池
[root@k8s-master01 ~]# vim first-ippool.yaml
[root@k8s-master01 ~]# cat first-ippool.yaml
apiVersion: metallb.io/v1beta1
kind: IPAddressPool
metadata:name: first-poolnamespace: metallb-system
spec:addresses:- 192.168.10.200-192.168.10.210
验证是否创建
[root@k8s-master01 ~]# kubectl get ipaddresspool -n metallb-system
NAME AGE
first-pool 23s
开启二层转发，实现在k8s集群节点外访问
[root@k8s-master01 ~]# vim l2forward.yaml
[root@k8s-master01 ~]# cat l2forward.yaml
apiVersion: metallb.io/v1beta1
kind: L2Advertisement
metadata:name: examplenamespace: metallb-system
二、kubeedge架构
三、kubeedge cloudcore部署
3.1 获取keadm工具
[root@k8s-master01 ~]# wget .12.1/keadm-v1.12.1-linux-amd64.tar.gz
[root@k8s-master01 ~]# ls
keadm-v1.12.1-linux-amd64.tar.gz
[root@k8s-master01 ~]# tar xf keadm-v1.12.1-linux-amd64.tar.gz
[root@k8s-master01 ~]# ls
keadm-v1.12.1-linux-amd64.tar.gz keadm-v1.12.1-linux-amd64
[root@k8s-master01 ~]# ls keadm-v1.12.1-linux-amd64
keadm version
[root@k8s-master01 ~]# ls keadm-v1.12.1-linux-amd64/keadm/
keadm
[root@k8s-master01 ~]# mv keadm-v1.12.1-linux-amd64/keadm/keadm /usr/local/bin/
[root@k8s-master01 ~]# keadm+----------------------------------------------------------+| KEADM || Easily bootstrap a KubeEdge cluster || || Please give us feedback at: || |+----------------------------------------------------------+Create a cluster with cloud node(which controls the edge node cluster), and edge nodes(where native containerized application, in the form ofpods and deployments run), connects to devices.Usage:keadm [command]Examples:+----------------------------------------------------------+| On the cloud machine: |+----------------------------------------------------------+| master node (on the cloud)# sudo keadm init |+----------------------------------------------------------++----------------------------------------------------------+| On the edge machine: |+----------------------------------------------------------+| worker node (at the edge)# sudo keadm join <flags> |+----------------------------------------------------------+You can then repeat the second step on, as many other machines as you like.Available Commands:completion generate the autocompletion script for the specified shellconfig Use this command to configure keadmdebug debug function to help diagnose the clusterdeprecated keadm deprecated commandgettoken To get the token for edge nodes to join the clusterhelp Help about any commandinit Bootstraps cloud component. Checks and install (if required) the pre-requisites.join Bootstraps edge component. Checks and install (if required) the pre-requisites. Execute it on any edge node machine you wish to joinmanifest Render the manifests by using a list of set flags like helm.reset Teardowns KubeEdge (cloud(helm installed) & edge) componentupgrade Upgrade edge component. Upgrade the edge node to the desired version.version Print the version of keadmFlags:-h, --help help for keadmAdditional help topics:keadm beta keadm beta commandUse "keadm [command] --help" for more information about a command.
3.2 cloudcore部署
[root@k8s-master01 ~]# keadm init --advertise-address=192.168.10.200 --set iptablesManager.mode="external" --profile version=v1.12.1
Kubernetes version verification passed, KubeEdge installation will start...
CLOUDCORE started
=========CHART DETAILS=======
NAME: cloudcore
LAST DEPLOYED: Sun Jan 8 21:52:24 2023
NAMESPACE: kubeedge
STATUS: deployed
REVISION: 1
[root@k8s-master01 ~]# kubectl get ns
NAME STATUS AGE
calico-apiserver Active 13m
calico-system Active 15m
default Active 18m
kube-node-lease Active 18m
kube-public Active 18m
kube-system Active 18m
kubeedge Active 30s 在这里
tigera-operator Active 16m
[root@k8s-master01 ~]# kubectl get pods -n kubeedge
NAME READY STATUS RESTARTS AGE
cloud-iptables-manager-5hdtp 1/1 Running 0 58s
cloud-iptables-manager-lsmmd 1/1 Running 0 58s
cloudcore-5876c76687-8rtj4 1/1 Running 0 57s
[root@k8s-master01 ~]# kubectl get svc -n kubeedge
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
cloudcore ClusterIP 10.110.216.131 <none> 10000/TCP,10001/TCP,10002/TCP,10003/TCP,10004/TCP 57s
[root@k8s-master01 ~]# kubectl edit svc cloudcore -n kubeedge
service/cloudcore edited
修改位置：selector:k8s-app: kubeedgekubeedge: cloudcoresessionAffinity: Nonetype: LoadBalancer 此处由clusterIP修改为LoadBalancer
[root@k8s-master01 ~]# kubectl get svc -n kubeedge
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
cloudcore LoadBalancer 10.98.223.240 192.168.10.200 10000:32400/TCP,10001:32049/TCP,10002:31062/TCP,10003:32041/TCP,10004:32174/TCP 75s
[root@k8s-master01 ~]# kubectl get daemonset -n kube-system | grep -v NAME | awk '{print $1}' | xargs -n 1 kubectl patch daemonset -n kube-system --type='json' -p='[{"op": "replace", "path": "/spec/template/spec/affinity", "value":{"nodeAffinity":{"requiredDuringSchedulingIgnoredDuringExecution":{"nodeSelectorTerms":[{"matchExpressions":[{"key":"node-role.kubernetes.io/edge","operator":"DoesNotExist"}]}]}}}}]'
daemonset.apps/kube-proxy patched
[root@k8s-master01 ~]# kubectl get daemonset -n metallb-system | grep -v NAME | awk '{print $1}' | xargs -n 1 kubectl patch daemonset -n metallb-system --type='json' -p='[{"op": "replace", "path": "/spec/template/spec/affinity", "value":{"nodeAffinity":{"requiredDuringSchedulingIgnoredDuringExecution":{"nodeSelectorTerms":[{"matchExpressions":[{"key":"node-role.kubernetes.io/edge","operator":"DoesNotExist"}]}]}}}}]'
daemonset.apps/speaker patched[root@k8s-master01 ~]# kubectl get daemonset -n calico-system | grep -v NAME | awk '{print $1}' | xargs -n 1 kubectl patch daemonset -n calico-system --type='json' -p='[{"op": "replace", "path": "/spec/template/spec/affinity", "value":{"nodeAffinity":{"requiredDuringSchedulingIgnoredDuringExecution":{"nodeSelectorTerms":[{"matchExpressions":[{"key":"node-role.kubernetes.io/edge","operator":"DoesNotExist"}]}]}}}}]'
daemonset.apps/calico-node patched
daemonset.apps/csi-node-driver patched
[root@k8s-master01 ~]# kubectl apply -f .yaml
serviceaccount/metrics-server created
clusterrole.rbac.authorization.k8s.io/system:aggregated-metrics-reader created
clusterrole.rbac.authorization.k8s.io/system:metrics-server created
rolebinding.rbac.authorization.k8s.io/metrics-server-auth-reader created
clusterrolebinding.rbac.authorization.k8s.io/metrics-server:system:auth-delegator created
clusterrolebinding.rbac.authorization.k8s.io/system:metrics-server created
service/metrics-server created
deployment.apps/metrics-server created
apiservice.apiregistration.k8s.io/v1beta1.metrics.k8s.io created
[root@k8s-master01 ~]# kubectl get pods -n kube-system
NAME READY STATUS RESTARTS AGE
coredns-7bdbbf6bf5-2ftxd 1/1 Running 1 (13h ago) 13h
coredns-7bdbbf6bf5-l292b 1/1 Running 1 (13h ago) 13h
etcd-k8s-master01 1/1 Running 1 (13h ago) 13h
kube-apiserver-k8s-master01 1/1 Running 1 (13h ago) 13h
kube-controller-manager-k8s-master01 1/1 Running 1 (13h ago) 13h
kube-proxy-j7674 1/1 Running 0 8m42s
kube-proxy-t8nrc 1/1 Running 0 8m43s
kube-proxy-zh5qw 1/1 Running 0 8m40s
kube-scheduler-k8s-master01 1/1 Running 1 (13h ago) 13h
metrics-server-684454657f-rgwhp 0/1 Running 0 10s
[root@k8s-master01 ~]# kubectl patch deploy metrics-server -n kube-system --type='json' -p='[{"op":"add","path": "/spec/template/spec/containers/0/args/-","value":"--kubelet-insecure-tls"}]'
deployment.apps/metrics-server patched
[root@k8s-master01 ~]# kubectl get pods -n kube-system
NAME READY STATUS RESTARTS AGE
coredns-7bdbbf6bf5-2ftxd 1/1 Running 1 (13h ago) 13h
coredns-7bdbbf6bf5-l292b 1/1 Running 1 (13h ago) 13h
etcd-k8s-master01 1/1 Running 1 (13h ago) 13h
kube-apiserver-k8s-master01 1/1 Running 1 (13h ago) 13h
kube-controller-manager-k8s-master01 1/1 Running 1 (13h ago) 13h
kube-proxy-j7674 1/1 Running 0 15m
kube-proxy-t8nrc 1/1 Running 0 15m
kube-proxy-zh5qw 1/1 Running 0 15m
kube-scheduler-k8s-master01 1/1 Running 1 (13h ago) 13h
metrics-server-85bc67fbcd-4lgvn 1/1 Running 0 2m7s
[root@k8s-master01 ~]# iptables -t nat -A OUTPUT -p tcp --dport 10351 -j DNAT --to 192.168.10.200:10003
四、kubeedge edgecore部署
[root@localhost ~]# hostnamectl set-hostname edgenode-1
[root@edgenode-1 ~]# wget .12.1/keadm-v1.12.1-linux-amd64.tar.gz
[root@edgenode-1 ~]# tar xf keadm-v1.12.1-linux-amd64.tar.gz
[root@edgenode-1 ~]# mv keadm-v1.12.1-linux-amd64/keadm/keadm /usr/local/bin/
[root@edgenode-1 ~]# keadm+----------------------------------------------------------+| KEADM || Easily bootstrap a KubeEdge cluster || || Please give us feedback at: || |+----------------------------------------------------------+Create a cluster with cloud node(which controls the edge node cluster), and edge nodes(where native containerized application, in the form ofpods and deployments run), connects to devices.Usage:keadm [command]Examples:+----------------------------------------------------------+| On the cloud machine: |+----------------------------------------------------------+| master node (on the cloud)# sudo keadm init |+----------------------------------------------------------++----------------------------------------------------------+| On the edge machine: |+----------------------------------------------------------+| worker node (at the edge)# sudo keadm join <flags> |+----------------------------------------------------------+You can then repeat the second step on, as many other machines as you like.Available Commands:completion generate the autocompletion script for the specified shellconfig Use this command to configure keadmdebug debug function to help diagnose the clusterdeprecated keadm deprecated commandgettoken To get the token for edge nodes to join the clusterhelp Help about any commandinit Bootstraps cloud component. Checks and install (if required) the pre-requisites.join Bootstraps edge component. Checks and install (if required) the pre-requisites. Execute it on any edge node machine you wish to joinmanifest Render the manifests by using a list of set flags like helm.reset Teardowns KubeEdge (cloud(helm installed) & edge) componentupgrade Upgrade edge component. Upgrade the edge node to the desired version.version Print the version of keadmFlags:-h, --help help for keadmAdditional help topics:keadm beta keadm beta commandUse "keadm [command] --help" for more information about a command.
[root@edgenode-1 ~]# wget .repo -O /etc/yum.repos.d/docker-ce.repo
[root@edgenode-1 ~]# yum -y install docker-ce
[root@edgenode-1 ~]# systemctl enable --now docker
[root@k8s-master01 ~]# keadm gettoken
bec7e346f2b62b87bb01cb8082111b05759aa16ba298d7b97442581c3bccee52.eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE2NzMzMjI1Mjd9.BzQiyUFBp1dax9NC7BOssRe4Pgj wOE24w2jE7S8Hp-0
[root@edgenode-1 ~]# TOKEN=bec7e346f2b62b87bb01cb8082111b05759aa16ba298d7b97442581c3bccee52.eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE2NzMzMjI1Mjd9. BzQiyUFBp1dax9NC7BOssRe4PgjwOE24w2jE7S8Hp-0
[root@edgenode-1 ~]# SERVER=192.168.10.200:10000
[root@edgenode-1 ~]# keadm join --token=$TOKEN --cloudcore-ipport=$SERVER --kubeedge-version=1.12.1
输出内容：
I0109 11:53:10.734725 11811 command.go:845] 1. Check KubeEdge edgecore process status
I0109 11:53:10.743044 11811 command.go:845] 2. Check if the management directory is clean
I0109 11:53:10.743129 11811 join.go:100] 3. Create the necessary directories
I0109 11:53:10.744103 11811 join.go:176] 4. Pull Images
Pulling kubeedge/installation-package:v1.12.1 ...
Pulling eclipse-mosquitto:1.6.15 ...
Pulling kubeedge/pause:3.1 ...
I0109 11:53:10.749692 11811 join.go:176] 5. Copy resources from the image to the management directory
I0109 11:53:11.324868 11811 join.go:176] 6. Start the default mqtt service
I0109 11:53:11.630975 11811 join.go:100] 7. Generate systemd service file
I0109 11:53:11.631178 11811 join.go:100] 8. Generate EdgeCore default configuration
I0109 11:53:11.631211 11811 join.go:230] The configuration does not exist or the parsing fails, and the default configuration is generated
W0109 11:53:11.744671 11811 validation.go:71] NodeIP is empty , use default ip which can connect to cloud.
I0109 11:53:11.746621 11811 join.go:100] 9. Run EdgeCore daemon
I0109 11:53:11.923574 11811 join.go:317]
I0109 11:53:11.923594 11811 join.go:318] KubeEdge edgecore is running, For logs visit: journalctl -u edgecore.service -xe
[root@k8s-master01 ~]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
edgenode-1 Ready agent,edge 88m v1.22.6-kubeedge-v1.12.1
k8s-master01 Ready control-plane,master 15h v1.22.17
k8s-worker01 Ready <none> 15h v1.22.17
k8s-worker02 Ready <none> 15h v1.22.17
[root@edgenode-1 ~]# systemctl status edgecore
● edgecore.serviceLoaded: loaded (/etc/systemd/system/edgecore.service; enabled; vendor preset: disabled)Active: active (running) since 一 2023-01-09 11:53:11 CST; 13s agoMain PID: 12058 (edgecore)Tasks: 14Memory: 44.6MCGroup: /system.slice/edgecore.service└─12058 /usr/local/bin/edgecore1月 09 11:53:12 edgenode-1 edgecore[12058]: E0109 11:53:12.508148 12058 kubelet.go:1831] "Skipping pod synchronization" err="container runti...ted yet"
1月 09 11:53:12 edgenode-1 edgecore[12058]: E0109 11:53:12.909472 12058 kubelet.go:1831] "Skipping pod synchronization" err="container runti...ted yet"
1月 09 11:53:13 edgenode-1 edgecore[12058]: E0109 11:53:13.711153 12058 kubelet.go:1831] "Skipping pod synchronization" err="container runti...ted yet"
1月 09 11:53:15 edgenode-1 edgecore[12058]: E0109 11:53:15.312124 12058 kubelet.go:1831] "Skipping pod synchronization" err="container runti...ted yet"
1月 09 11:53:18 edgenode-1 edgecore[12058]: E0109 11:53:18.512561 12058 kubelet.go:1831] "Skipping pod synchronization" err="container runti...ted yet"
1月 09 11:53:22 edgenode-1 edgecore[12058]: I0109 11:53:22.170516 12058 reconciler.go:157] "Reconciler: start to sync state"
1月 09 11:53:22 edgenode-1 edgecore[12058]: I0109 11:53:22.329807 12058 kuberuntime_manager.go:1078] "Updating runtime config through cri wi....3.0/24"
1月 09 11:53:22 edgenode-1 edgecore[12058]: I0109 11:53:22.330123 12058 docker_service.go:363] "Docker cri received runtime config" runtimeC.../24,},}"
1月 09 11:53:22 edgenode-1 edgecore[12058]: I0109 11:53:22.330276 12058 kubelet_network.go:62] "Updating Pod CIDR" originalPodCIDR="" newPod....3.0/24"
1月 09 11:53:23 edgenode-1 edgecore[12058]: E0109 11:53:23.514067 12058 kubelet.go:1831] "Skipping pod synchronization" err="container runti...ted yet"
Hint: Some lines were ellipsized, use -l to show in full.
edgecore配置文件位置 [root@edgenode-1 ~]# cat /etc/kubeedge/config/edgecore.yaml
[root@edgenode-1 ~]# journalctl -u edgecore.service -f
[root@edgenode-1 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c658285c03d9 eclipse-mosquitto:1.6.15 "/docker-entrypoint.…" 22 seconds ago Up 22 seconds 0.0.0.0:1883->1883/tcp, :::1883->1883/tcp mqtt
五、通过kubeedge部署nginx应用并实现访问
[root@k8s-master01 ~]# vim nginx.yaml
[root@k8s-master01 ~]# cat nginx.yaml
---
apiVersion: apps/v1
kind: Deployment
metadata:name: nginx
spec:selector:matchLabels:app: nginxreplicas: 1template:metadata:labels:app: nginxspec:nodeName: edgenode-1containers:- name: nginximage: nginx:latest
---
apiVersion: v1
kind: Service
metadata:name: nginx-svc
spec:type: LoadBalancerports:- port: 80targetPort: 80selector:app: nginx
[root@k8s-master01 ~]# kubectl apply -f nginx.yaml
deployment.apps/nginx created
service/nginx-svc created
[root@k8s-master01 ~]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
nginx-7c994ccd94-cnstq 1/1 Running 0 26s 172.17.0.6 edgenode-1 <none> <none>
[root@k8s-master01 ~]# kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
nginx-svc LoadBalancer 10.107.115.15 192.168.10.201 80:31886/TCP 47s
[root@k8s-master01 ~]# kubectl exec -it nginx-7c994ccd94-g9d5p -- /bin/bash
root@nginx-7c994ccd94-g9d5p:/#
root@nginx-7c994ccd94-g9d5p:/# pwd
/
root@nginx-7c994ccd94-g9d5p:/# ls
bin boot dev docker-entrypoint.d docker-entrypoint.sh etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var
六、查看已部署到边缘侧应用日志
[root@edgenode-1 ~]# ls /etc/kubeedge/
ca certs config dmi.sock
[root@edgenode-1 ~]# ls /etc/kubeedge/config/
edgecore.yaml
[root@edgenode-1 ~]# vim /etc/kubeedge/config/edgecore.yaml
edgeStream:enable: true 此处由flase修改为truehandshakeTimeout: 30readDeadline: 15server: 192.168.10.200:10004
[root@edgenode-1 ~]# systemctl restart edgecore
[root@edgenode-1 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
35ea17f6790f nginx "/docker-entrypoint.…" 3 minutes ago Up 3 minutes k8s_nginx_nginx-7c994ccd94-g9d5p_default_762eb218-58e8-441a-8951-152438bc17b7_0
d9c778946274 kubeedge/pause:3.1 "/pause" 3 minutes ago Up 3 minutes k8s_POD_nginx-7c994ccd94-g9d5p_default_762eb218-58e8-441a-8951-152438bc17b7_0
[root@edgenode-1 ~]# docker logs 35ea17f6790f
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
10-listen-on-ipv6-by-default.sh: info: Getting the checksum of /etc/nginx/conf.d/default.conf
10-listen-on-ipv6-by-default.sh: info: Enabled listen on IPv6 in /etc/nginx/conf.d/default.conf
/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
/docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh
/docker-entrypoint.sh: Configuration complete; ready for start up
2023/01/09 13:28:26 [notice] 1#1: using the "epoll" event method
2023/01/09 13:28:26 [notice] 1#1: nginx/1.23.3
2023/01/09 13:28:26 [notice] 1#1: built by gcc 10.2.1 20210110 (Debian 10.2.1-6)
2023/01/09 13:28:26 [notice] 1#1: OS: Linux 5.4.213-1.el7.elrepo.x86_64
2023/01/09 13:28:26 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1048576:1048576
2023/01/09 13:28:26 [notice] 1#1: start worker processes
2023/01/09 13:28:26 [notice] 1#1: start worker process 29
2023/01/09 13:28:26 [notice] 1#1: start worker process 30
2023/01/09 13:28:26 [notice] 1#1: start worker process 31
2023/01/09 13:28:26 [notice] 1#1: start worker process 32
[root@k8s-master01 ~]# kubectl logs nginx-7c994ccd94-g9d5p
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
10-listen-on-ipv6-by-default.sh: info: Getting the checksum of /etc/nginx/conf.d/default.conf
10-listen-on-ipv6-by-default.sh: info: Enabled listen on IPv6 in /etc/nginx/conf.d/default.conf
/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
/docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh
/docker-entrypoint.sh: Configuration complete; ready for start up
2023/01/09 13:28:26 [notice] 1#1: using the "epoll" event method
2023/01/09 13:28:26 [notice] 1#1: nginx/1.23.3
2023/01/09 13:28:26 [notice] 1#1: built by gcc 10.2.1 20210110 (Debian 10.2.1-6)
2023/01/09 13:28:26 [notice] 1#1: OS: Linux 5.4.213-1.el7.elrepo.x86_64
2023/01/09 13:28:26 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1048576:1048576
2023/01/09 13:28:26 [notice] 1#1: start worker processes
2023/01/09 13:28:26 [notice] 1#1: start worker process 29
2023/01/09 13:28:26 [notice] 1#1: start worker process 30
2023/01/09 13:28:26 [notice] 1#1: start worker process 31
2023/01/09 13:28:26 [notice] 1#1: start worker process 32
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云原生边缘计算 kubeedge部署丨建议K8s1.24以内版本使用
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