Install
- Helm 与 Kubernetes 的版本匹配关系
- https://github.com/helm/helm
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[zc@k8s-master1 ~]$ cd software/
[zc@k8s-master1 software]$ wget https://get.helm.sh/helm-v3.13.3-linux-amd64.tar.gz
[zc@k8s-master1 software]$ sudo cp linux-amd64/helm /usr/local/bin/
[zc@k8s-master1 software]$ helm version
version.BuildInfo{Version:"v3.13.3", GitCommit:"c8b948945e52abba22ff885446a1486cb5fd3474", GitTreeState:"clean", GoVersion:"go1.20.11"}
helm repo
helm repo add 添加新的仓库
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[root@k8s-master1 ~]# helm repo add brigade https://brigadecore.github.io/charts
"brigade" has been added to your repositories
[root@k8s-master1 ~]# helm repo add bitnami https://charts.bitnami.com/bitnami
"bitnami" has been added to your repositories
[root@k8s-master1 ~]# helm repo add azure http://mirror.azure.cn/kubernetes/charts
"azure" has been added to your repositories
helm repo list 查看配置的仓库
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[root@k8s-master1 ~]# helm repo list
NAME URL
brigade https://brigadecore.github.io/charts
bitnami https://charts.bitnami.com/bitnami
azure http://mirror.azure.cn/kubernetes/charts
helm repo remove 移除仓库
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[root@k8s-master1 ~]# helm repo remove brigade
"brigade" has been removed from your repositories
helm search
helm search hub
- 从 Artifact Hub 中查找并列出 helm charts。
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[root@k8s-master1 ~]# helm search hub wordpress
URL CHART VERSION APP VERSION DESCRIPTION
https://artifacthub.io/packages/helm/wordpress-... 1.0.2 1.0.0 A Helm chart for deploying Wordpress+Mariadb st...
https://artifacthub.io/packages/helm/kube-wordp... 0.1.0 1.1 this is my wordpress package
https://artifacthub.io/packages/helm/truecharts... 4.0.5 6.4.2 The WordPress rich content management system ca...
https://artifacthub.io/packages/helm/shubham-wo... 0.1.0 1.16.0 A Helm chart for Kubernetes
helm search repo
- 从自行添加（使用
helm repo add）到本地 helm 客户端中的仓库中进行查找。该命令基于本地数据进行搜索，无需连接互联网。
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[root@k8s-master1 ~]# helm search repo brigade
NAME CHART VERSION APP VERSION DESCRIPTION
brigade/brigade 1.10.0 v1.5.0 Brigade provides event-driven scripting of Kube...
brigade/brigade-github-app 0.8.0 v0.4.1 The Brigade GitHub App, an advanced gateway for...
brigade/brigade-github-oauth 0.4.0 v0.20.0 The legacy OAuth GitHub Gateway for Brigade
brigade/brigade-k8s-gateway 0.3.0 A Helm chart for Kubernetes
brigade/brigade-project 1.1.0 v1.0.0 Create a Brigade project
brigade/kashti 0.7.0 v0.4.0 A Helm chart for Kubernetes
helm pull 将 chart 拉取到本地当前目录
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[root@k8s-master1 ~]# mkdir brigade
[root@k8s-master1 ~]# cd brigade
[root@k8s-master1 brigade]# helm pull brigade/brigade
[root@k8s-master1 brigade]# ls
brigade-1.10.0.tgz
[root@k8s-master1 brigade]# tar -zxf brigade-1.10.0.tgz
[root@k8s-master1 brigade]# ls
brigade brigade-1.10.0.tgz
[root@k8s-master1 brigade]# ls brigade
charts Chart.yaml requirements.lock requirements.yaml templates values.yaml
helm install
helm install 自定义的release名字 chart的名字
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[root@k8s-master1 ~]# helm search repo redis
NAME CHART VERSION APP VERSION DESCRIPTION
azure/prometheus-redis-exporter 3.5.1 1.3.4 DEPRECATED Prometheus exporter for Redis metrics
azure/redis 10.5.7 5.0.7 DEPRECATED Open source, advanced key-value stor...
azure/redis-ha 4.4.6 5.0.6 DEPRECATED - Highly available Kubernetes implem...
bitnami/redis 18.6.1 7.2.3 Redis(R) is an open source, advanced key-value ...
bitnami/redis-cluster 9.1.4 7.2.3 Redis(R) is an open source, scalable, distribut...
azure/sensu 0.2.5 0.28 DEPRECATED Sensu monitoring framework backed by...
# 查看安装说明
[root@k8s-master1 ~]# helm show readme bitnami/redis
[root@k8s-master1 ~]# kubectl create namespace fdr-test
namespace/fdr-test created
[root@k8s-master1 test]# helm install fdr-redis bitnami/redis -n fdr-test \
--set global.redis.password='ab123456' \
--set global.storageClass='managed-nfs-storage' \
--set master.persistence.size=1Gi \
--set replica.persistence.size=1Gi
NAME: fdr-redis
LAST DEPLOYED: Wed Dec 27 15:41:09 2023
NAMESPACE: fdr-test
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
CHART NAME: redis
CHART VERSION: 18.6.1
APP VERSION: 7.2.3
** Please be patient while the chart is being deployed **
Redis® can be accessed on the following DNS names from within your cluster:
fdr-redis-master.fdr-test.svc.cluster.local for read/write operations (port 6379)
fdr-redis-replicas.fdr-test.svc.cluster.local for read-only operations (port 6379)
To get your password run:
export REDIS_PASSWORD=$(kubectl get secret --namespace fdr-test fdr-redis -o jsonpath="{.data.redis-password}" | base64 -d)
To connect to your Redis® server:
1. Run a Redis® pod that you can use as a client:
kubectl run --namespace fdr-test redis-client --restart='Never' --env REDIS_PASSWORD=$REDIS_PASSWORD --image docker.io/bitnami/redis:7.2.3-debian-11-r2 --command -- sleep infinity
Use the following command to attach to the pod:
kubectl exec --tty -i redis-client \
--namespace fdr-test -- bash
2. Connect using the Redis® CLI:
REDISCLI_AUTH="$REDIS_PASSWORD" redis-cli -h fdr-redis-master
REDISCLI_AUTH="$REDIS_PASSWORD" redis-cli -h fdr-redis-replicas
To connect to your database from outside the cluster execute the following commands:
kubectl port-forward --namespace fdr-test svc/fdr-redis-master 6379:6379 &
REDISCLI_AUTH="$REDIS_PASSWORD" redis-cli -h 127.0.0.1 -p 6379
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[root@k8s-master1 templates]# kubectl get all -n fdr-test
NAME READY STATUS RESTARTS AGE
pod/fdr-redis-master-0 1/1 Running 0 3m20s
pod/fdr-redis-replicas-0 1/1 Running 0 3m20s
pod/fdr-redis-replicas-1 1/1 Running 0 2m42s
pod/fdr-redis-replicas-2 1/1 Running 0 94s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/fdr-redis-headless ClusterIP None <none> 6379/TCP 3m20s
service/fdr-redis-master ClusterIP 10.110.186.154 <none> 6379/TCP 3m20s
service/fdr-redis-replicas ClusterIP 10.108.230.91 <none> 6379/TCP 3m20s
NAME READY AGE
statefulset.apps/fdr-redis-master 1/1 3m20s
statefulset.apps/fdr-redis-replicas 3/3 3m20s
[root@k8s-master1 templates]# kubectl get pvc -n fdr-test
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
redis-data-fdr-redis-master-0 Bound pvc-c75c25f0-18a6-44c5-b8e0-0cfd791b5f59 1Gi RWO managed-nfs-storage 4m4s
redis-data-fdr-redis-replicas-0 Bound pvc-39caf5a7-c930-4958-b037-9f75c340b063 1Gi RWO managed-nfs-storage 4m4s
redis-data-fdr-redis-replicas-1 Bound pvc-d689551e-1f9f-4c42-a1e5-55ea9b42302d 1Gi RWO managed-nfs-storage 3m26s
redis-data-fdr-redis-replicas-2 Bound pvc-ed2edf54-9158-4c50-9d98-9e62347e8ae5 1Gi RWO managed-nfs-storage 2m18s
[root@k8s-master1 templates]# kubectl get pv -n fdr-test
NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGE
pvc-39caf5a7-c930-4958-b037-9f75c340b063 1Gi RWO Delete Bound fdr-test/redis-data-fdr-redis-replicas-0 managed-nfs-storage 4m7s
pvc-c75c25f0-18a6-44c5-b8e0-0cfd791b5f59 1Gi RWO Delete Bound fdr-test/redis-data-fdr-redis-master-0 managed-nfs-storage 4m7s
pvc-d689551e-1f9f-4c42-a1e5-55ea9b42302d 1Gi RWO Delete Bound fdr-test/redis-data-fdr-redis-replicas-1 managed-nfs-storage 3m29s
pvc-ed2edf54-9158-4c50-9d98-9e62347e8ae5 1Gi RWO Delete Bound fdr-test/redis-data-fdr-redis-replicas-2 managed-nfs-storage 2m21s
helm status
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[root@k8s-master1 ~]# helm status fdr-redis -n fdr-test
helm upgrade
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[root@k8s-master1 test]# helm upgrade fdr-redis bitnami/redis -n fdr-test \
--set global.redis.password='AB123456' \
--set global.storageClass='managed-nfs-storage' \
--set master.persistence.size=1Gi \
--set replica.persistence.size=1Gi
helm rollback
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[root@k8s-master1 ~]# helm history fdr-redis -n fdr-test
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Wed Dec 27 15:41:09 2023 superseded redis-18.6.1 7.2.3 Install complete
2 Wed Dec 27 16:45:32 2023 deployed redis-18.6.1 7.2.3 Upgrade complete
[root@k8s-master1 ~]# helm rollback fdr-redis 1 -n fdr-test
Rollback was a success! Happy Helming!
helm uninstall
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[root@k8s-master1 ~]# helm uninstall fdr-redis -n fdr-test
release "fdr-redis" uninstalled
[root@k8s-master1 ~]# kubectl get all -n fdr-test
No resources found in fdr-test namespace.
[root@k8s-master1 ~]# kubectl get pvc -n fdr-test
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
redis-data-fdr-redis-master-0 Bound pvc-c75c25f0-18a6-44c5-b8e0-0cfd791b5f59 1Gi RWO managed-nfs-storage 67m
redis-data-fdr-redis-replicas-0 Bound pvc-39caf5a7-c930-4958-b037-9f75c340b063 1Gi RWO managed-nfs-storage 67m
redis-data-fdr-redis-replicas-1 Bound pvc-d689551e-1f9f-4c42-a1e5-55ea9b42302d 1Gi RWO managed-nfs-storage 66m
redis-data-fdr-redis-replicas-2 Bound pvc-ed2edf54-9158-4c50-9d98-9e62347e8ae5 1Gi RWO managed-nfs-storage 65m
[root@k8s-master1 ~]# kubectl get pv -n fdr-test
NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGE
pvc-39caf5a7-c930-4958-b037-9f75c340b063 1Gi RWO Delete Bound fdr-test/redis-data-fdr-redis-replicas-0 managed-nfs-storage 67m
pvc-c75c25f0-18a6-44c5-b8e0-0cfd791b5f59 1Gi RWO Delete Bound fdr-test/redis-data-fdr-redis-master-0 managed-nfs-storage 67m
pvc-d689551e-1f9f-4c42-a1e5-55ea9b42302d 1Gi RWO Delete Bound fdr-test/redis-data-fdr-redis-replicas-1 managed-nfs-storage 66m
pvc-ed2edf54-9158-4c50-9d98-9e62347e8ae5 1Gi RWO Delete Bound fdr-test/redis-data-fdr-redis-replicas-2 managed-nfs-storage 65m
[root@k8s-master1 ~]# kubectl delete pvc redis-data-fdr-redis-master-0 redis-data-fdr-redis-replicas-0 redis-data-fdr-redis-replicas-1 redis-data-fdr-redis-replicas-2 -n fdr-test
persistentvolumeclaim "redis-data-fdr-redis-master-0" deleted
persistentvolumeclaim "redis-data-fdr-redis-replicas-0" deleted
persistentvolumeclaim "redis-data-fdr-redis-replicas-1" deleted
persistentvolumeclaim "redis-data-fdr-redis-replicas-2" deleted
[root@k8s-master1 ~]# kubectl get pvc -n fdr-test
No resources found in fdr-test namespace.
[root@k8s-master1 ~]# kubectl get pv -n fdr-test
No resources found
[root@k8s-master1 ~]# kubectl delete namespace fdr-test
namespace "fdr-test" deleted
