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система_kubernetes [2024/04/06 11:26] val [Развертывание через kubeadm] |
система_kubernetes [2024/06/02 09:37] (current) val [Развертывание через Kubespray] |
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| Line 171: | Line 171: | ||
| === Установка ПО === | === Установка ПО === | ||
| + | === !!! Обратитесь к преподавателю !!! === | ||
| <code> | <code> | ||
| node1# bash -c ' | node1# bash -c ' | ||
| Line 264: | Line 265: | ||
| $ kubectl cordon kube3 | $ kubectl cordon kube3 | ||
| - | $ time kubectl drain kube3 --force --ignore-daemonsets --delete-emptydir-data | + | $ time kubectl drain kube3 #--ignore-daemonsets --delete-emptydir-data --force |
| $ kubectl delete node kube3 | $ kubectl delete node kube3 | ||
| Line 332: | Line 333: | ||
| ==== Развертывание через Kubespray ==== | ==== Развертывание через Kubespray ==== | ||
| + | |||
| + | === !!! Обратитесь к преподавателю !!! === | ||
| * [[https://github.com/kubernetes-sigs/kubespray]] | * [[https://github.com/kubernetes-sigs/kubespray]] | ||
| Line 347: | Line 350: | ||
| kube1# ssh-copy-id kube1;ssh-copy-id kube2;ssh-copy-id kube3;ssh-copy-id kube4; | kube1# ssh-copy-id kube1;ssh-copy-id kube2;ssh-copy-id kube3;ssh-copy-id kube4; | ||
| - | kube1# apt update | + | kube1# #apt update |
| - | kube1# apt install python3-pip -y | + | kube1# #apt install python3-pip -y |
| kube1# git clone https://github.com/kubernetes-sigs/kubespray | kube1# git clone https://github.com/kubernetes-sigs/kubespray | ||
| Line 359: | Line 362: | ||
| ~/kubespray# git branch -r | ~/kubespray# git branch -r | ||
| - | ~/kubespray# ### git checkout origin/release-2.22 | + | ~/kubespray# git checkout origin/release-2.22 |
| ~/kubespray# git tag -l | ~/kubespray# git tag -l | ||
| ~/kubespray# ### git checkout tags/v2.22.1 | ~/kubespray# ### git checkout tags/v2.22.1 | ||
| - | ~/kubespray# git checkout 4c37399c7582ea2bfb5202c3dde3223f9c43bf59 | + | ~/kubespray# ### git checkout 4c37399c7582ea2bfb5202c3dde3223f9c43bf59 |
| ~/kubespray# ### git checkout master | ~/kubespray# ### git checkout master | ||
| Line 383: | Line 386: | ||
| ~/kubespray# less inventory/mycluster/hosts.yaml | ~/kubespray# less inventory/mycluster/hosts.yaml | ||
| + | </code> | ||
| + | * [[Сервис Ansible#Использование модулей]] Ansible для отключения swap | ||
| + | * Настройка registry-mirrors для установки и работы кластера | ||
| + | <code> | ||
| + | ~/kubespray# cat inventory/mycluster/group_vars/all/docker.yml | ||
| + | </code><code> | ||
| + | ... | ||
| + | docker_registry_mirrors: | ||
| + | - https://mirror.gcr.io | ||
| + | ... | ||
| + | </code><code> | ||
| + | ~/kubespray# cat inventory/mycluster/group_vars/all/containerd.yml | ||
| + | </code><code> | ||
| + | ... | ||
| + | containerd_registries_mirrors: | ||
| + | - prefix: docker.io | ||
| + | mirrors: | ||
| + | - host: https://mirror.gcr.io | ||
| + | capabilities: ["pull", "resolve"] | ||
| + | skip_verify: false | ||
| + | ... | ||
| + | </code> | ||
| + | * Развертывание кластера | ||
| + | <code> | ||
| ~/kubespray# time ansible-playbook -i inventory/mycluster/hosts.yaml cluster.yml | ~/kubespray# time ansible-playbook -i inventory/mycluster/hosts.yaml cluster.yml | ||
| real 45m31.796s | real 45m31.796s | ||
| Line 394: | Line 421: | ||
| === Добавление узла через Kubespray === | === Добавление узла через Kubespray === | ||
| + | |||
| + | * [[https://nixhub.ru/posts/k8s-nodes-scale/|K8s - добавление нод через kubespray]] | ||
| + | |||
| <code> | <code> | ||
| ~/kubespray# cat inventory/mycluster/hosts.yaml | ~/kubespray# cat inventory/mycluster/hosts.yaml | ||
| Line 469: | Line 499: | ||
| $ kubectl delete pod my-debian | $ kubectl delete pod my-debian | ||
| + | $ ###kubectl delete pod my-debian --grace-period=0 --force | ||
| $ kubectl create deployment my-debian --image=debian -- "sleep" "3600" | $ kubectl create deployment my-debian --image=debian -- "sleep" "3600" | ||
| Line 597: | Line 628: | ||
| $ kubectl delete pod/my-webd-NNNNNNNNNN-NNNNN -n my-ns | $ kubectl delete pod/my-webd-NNNNNNNNNN-NNNNN -n my-ns | ||
| + | </code> | ||
| + | |||
| + | * [[https://learnk8s.io/kubernetes-rollbacks|How do you rollback deployments in Kubernetes?]] | ||
| + | |||
| + | <code> | ||
| + | gitlab-runner@server:~$ kubectl -n my-ns rollout history deployment/my-webd | ||
| + | deployment.apps/my-webd | ||
| + | REVISION CHANGE-CAUSE | ||
| + | 1 <none> | ||
| + | ... | ||
| + | N <none> | ||
| + | |||
| + | gitlab-runner@server:~$ kubectl -n my-ns rollout history deployment/my-webd --revision=1 | ||
| + | ... | ||
| + | Image: server.corpX.un:5000/student/webd:ver1.1 | ||
| + | ... | ||
| + | |||
| + | kubectl -n my-ns rollout undo deployment/my-webd --to-revision=1 | ||
| + | |||
| + | gitlab-runner@server:~$ kubectl -n my-ns rollout undo deployment/my-webd --to-revision=1 | ||
| + | |||
| + | gitlab-runner@server:~$ kubectl -n my-ns rollout history deployment/my-webd | ||
| + | deployment.apps/my-webd | ||
| + | REVISION CHANGE-CAUSE | ||
| + | 2 <none> | ||
| + | ... | ||
| + | N+1 <none> | ||
| </code> | </code> | ||
| Line 647: | Line 705: | ||
| $ minikube service list | $ minikube service list | ||
| - | $ minikube service my-webd -n my-ns --url | + | $ minikube service my-webd --url -n my-ns |
| http://192.168.49.2:NNNNN | http://192.168.49.2:NNNNN | ||
| - | $ curl $(minikube service my-webd -n my-ns --url) | + | $ curl http://192.168.49.2:NNNNN |
| </code> | </code> | ||
| Line 696: | Line 754: | ||
| $ ### kubectl delete -f first-pool.yaml && rm first-pool.yaml | $ ### kubectl delete -f first-pool.yaml && rm first-pool.yaml | ||
| - | $ ### kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.14.3/config/manifests/metallb-native.yaml | + | $ ### kubectl delete -f https://raw.githubusercontent.com/metallb/metallb/v0.14.3/config/manifests/metallb-native.yaml |
| </code> | </code> | ||
| Line 807: | Line 865: | ||
| node1# kubectl get all -n ingress-nginx | node1# kubectl get all -n ingress-nginx | ||
| - | node1# ### kubectl delete -f ingress-nginx.controller-v1.3.1.baremetal.yaml | + | node1# ###kubectl delete -A ValidatingWebhookConfiguration ingress-nginx-admission |
| + | |||
| + | node1# ###kubectl delete -f ingress-nginx.controller-v1.3.1.baremetal.yaml | ||
| </code> | </code> | ||
| Line 993: | Line 1053: | ||
| storage: 128Mi | storage: 128Mi | ||
| # storage: 8Gi | # storage: 8Gi | ||
| - | # volumeMode: Filesystem | ||
| accessModes: | accessModes: | ||
| - ReadWriteMany | - ReadWriteMany | ||
| Line 1089: | Line 1148: | ||
| <code> | <code> | ||
| $ kubectl apply -f https://raw.githubusercontent.com/longhorn/longhorn/v1.6.0/deploy/longhorn.yaml | $ kubectl apply -f https://raw.githubusercontent.com/longhorn/longhorn/v1.6.0/deploy/longhorn.yaml | ||
| + | |||
| + | $ kubectl -n longhorn-system get pods -o wide --watch | ||
| Setting->General | Setting->General | ||
| Line 1135: | Line 1196: | ||
| * Делаем снапшот | * Делаем снапшот | ||
| - | * Что-то ломаем | + | * Что-то ломаем (удаляем пользователя) |
| * Останавливаем сервис | * Останавливаем сервис | ||
| Line 1154: | Line 1215: | ||
| == Использование backup-ов == | == Использование backup-ов == | ||
| + | |||
| + | * Разворачиваем [[Сервис NFS]] на server | ||
| + | |||
| <code> | <code> | ||
| Setting -> General -> Backup Target -> nfs://server.corp13.un:/var/www (nfs client linux не нужен) | Setting -> General -> Backup Target -> nfs://server.corp13.un:/var/www (nfs client linux не нужен) | ||
система_kubernetes.1712391999.txt.gz · Last modified: 2024/04/06 11:26 by val
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