服装网站策划书,3322网建站,千牛怎么做免费推广引流,网站 语言切换怎么做文章目录 一、前言二、Redis 一、前言 Artifact Hub 是一个专注于云原生应用的集中式搜索和发布平台。它旨在简化开发者在 CNCF#xff08;Cloud Native Computing Foundation#xff09;项目中寻找、安装和分享包与配置的过程。用户可以通过这个平台方便地发现、安装各类云原… 文章目录 一、前言二、Redis 一、前言 Artifact Hub 是一个专注于云原生应用的集中式搜索和发布平台。它旨在简化开发者在 CNCFCloud Native Computing Foundation项目中寻找、安装和分享包与配置的过程。用户可以通过这个平台方便地发现、安装各类云原生工具的组件如Argo模板、Helm 图表、Kubernetes 插件等。 二、Redis
$ helm repo add bitnami https://charts.bitnami.com/bitnami
bitnami has been added to your repositories$ kubectl get sc
NAME PROVISIONER RECLAIMPOLICY VOLUMEBINDINGMODE ALLOWVOLUMEEXPANSION AGE
nfs nfs-provisioner-01 Retain Immediate false 3d10h# 执行安装命令并执行参数存储类的名称得确保你集群中有这个存储类并且能够正常的提供PV动态供给
$ helm install redis-cluster oci://registry-1.docker.io/bitnamicharts/redis --set global.storageClassnfs
Pulled: registry-1.docker.io/bitnamicharts/redis:19.6.1
Digest: sha256:0d077ee5947e26645e3bc05e3d6e6bd62e24e3082cf5df43d89664099336a78d
NAME: redis-cluster
LAST DEPLOYED: Mon Jul 8 03:42:57 2024
NAMESPACE: default
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
CHART NAME: redis
CHART VERSION: 19.6.1
APP VERSION: 7.2.5** Please be patient while the chart is being deployed **Redisreg; can be accessed on the following DNS names from within your cluster:redis-cluster-master.default.svc.cluster.local for read/write operations (port 6379)redis-cluster-replicas.default.svc.cluster.local for read-only operations (port 6379)To get your password run:export REDIS_PASSWORD$(kubectl get secret --namespace default redis-cluster -o jsonpath{.data.redis-password} | base64 -d)To connect to your Redisreg; server:1. Run a Redisreg; pod that you can use as a client:kubectl run --namespace default redis-client --restartNever --env REDIS_PASSWORD$REDIS_PASSWORD --image docker.io/bitnami/redis:7.2.5-debian-12-r2 --command -- sleep infinityUse the following command to attach to the pod:kubectl exec --tty -i redis-client \--namespace default -- bash2. Connect using the Redisreg; CLI:REDISCLI_AUTH$REDIS_PASSWORD redis-cli -h redis-cluster-masterREDISCLI_AUTH$REDIS_PASSWORD redis-cli -h redis-cluster-replicasTo connect to your database from outside the cluster execute the following commands:kubectl port-forward --namespace default svc/redis-cluster-master 6379:6379 REDISCLI_AUTH$REDIS_PASSWORD redis-cli -h 127.0.0.1 -p 6379WARNING: There are resources sections in the chart not set. Using resourcesPreset is not recommended for production. For production installations, please set the following values according to your workload needs:- replica.resources- master.resources
info https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/$ kubectl get pods
NAME READY STATUS RESTARTS AGE
redis-cluster-master-0 1/1 Running 0 8m44s
redis-cluster-replicas-0 1/1 Running 0 8m44s
redis-cluster-replicas-1 1/1 Running 0 6m43s
redis-cluster-replicas-2 0/1 ContainerCreating 0 4m50s# 将密码保存到 REDIS_PASSWORD 这个环境变量中
$ export REDIS_PASSWORD$(kubectl get secret --namespace default redis-cluster -o jsonpath{.data.redis-password} | base64 -d)# 再创建一个 Redis 客户端
$ kubectl run --namespace default redis-client --restartNever --env REDIS_PASSWORD$REDIS_PASSWORD --image docker.io/bitnami/redis:7.2.5-debian-12-r2 --command -- sleep infinity
pod/redis-client created$ kubectl get pods
NAME READY STATUS RESTARTS AGE
redis-client 1/1 Running 0 28s
redis-cluster-master-0 1/1 Running 0 10m
redis-cluster-replicas-0 1/1 Running 0 10m
redis-cluster-replicas-1 1/1 Running 0 8m50s
redis-cluster-replicas-2 1/1 Running 0 6m57s$ kubectl run --namespace default redis-client --restartNever --env REDIS_PASSWORD$REDIS_PASSWORD --image docker.io/bitnami/redis:7.2.5-debian-12-r2 --command -- sleep infinity
pod/redis-client created$ kubectl get pods
NAME READY STATUS RESTARTS AGE
redis-client 1/1 Running 0 28s
redis-cluster-master-0 1/1 Running 0 10m
redis-cluster-replicas-0 1/1 Running 0 10m
redis-cluster-replicas-1 1/1 Running 0 8m50s
redis-cluster-replicas-2 1/1 Running 0 6m57s$ kubectl exec -it redis-client -- bash
I have no name!redis-client:/$ REDISCLI_AUTH$REDIS_PASSWORD redis-cli -h redis-cluster-master
redis-cluster-master:6379 info replication
# Replication
role:master
connected_slaves:3
slave0:ipredis-cluster-replicas-0.redis-cluster-headless.default.svc.cluster.local,port6379,stateonline,offset924,lag1
slave1:ipredis-cluster-replicas-1.redis-cluster-headless.default.svc.cluster.local,port6379,stateonline,offset924,lag1
slave2:ipredis-cluster-replicas-2.redis-cluster-headless.default.svc.cluster.local,port6379,stateonline,offset924,lag1
master_failover_state:no-failover
master_replid:239753ae516fad9e7fb6230d053861b80bc0bbb3
master_replid2:0000000000000000000000000000000000000000
master_repl_offset:924
second_repl_offset:-1
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:1
repl_backlog_histlen:924$ kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.68.0.1 none 443/TCP 3d12h
redis-cluster-headless ClusterIP None none 6379/TCP 16m
redis-cluster-master ClusterIP 10.68.240.7 none 6379/TCP 16m
redis-cluster-replicas ClusterIP 10.68.170.149 none 6379/TCP 16m改为暴露端口从外部访问
$ kubectl edit svc redis-cluster-master
# 原先内容ports:- name: tcp-redisport: 6379protocol: TCPtargetPort: redisselector:app.kubernetes.io/component: masterapp.kubernetes.io/instance: redis-clusterapp.kubernetes.io/name: redissessionAffinity: Nonetype: ClusterIP
# 修改为ports:- name: tcp-redisnodePort: 31379port: 6379protocol: TCPtargetPort: redisselector:app.kubernetes.io/component: masterapp.kubernetes.io/instance: redis-clusterapp.kubernetes.io/name: redissessionAffinity: Nonetype: NodePort
# 注意nodePort 值不在指定范围会报错而无法保存比如设置成 11379
# Please edit the object below. Lines beginning with a # will be ignored,
# and an empty file will abort the edit. If an error occurs while saving this file will be
# reopened with the relevant failures.
#
# services redis-cluster-master was not valid:
# * spec.ports[0].nodePort: Invalid value: 11379: provided port is not in the valid range. The range of valid ports is 30000-32767# 重启服务删除之后会自动重启
$ kubectl delete svc redis-cluster-master -n default$ kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.68.0.1 none 443/TCP 4d11h
redis-cluster-headless ClusterIP None none 6379/TCP 22h
redis-cluster-master NodePort 10.68.240.7 none 6379:31379/TCP 22h
redis-cluster-replicas ClusterIP 10.68.170.149 none 6379/TCP 22h补充安装时参数自定义
# 安装的时候增加 namespace 的创建
$ helm install redis-cluster oci://registry-1.docker.io/bitnamicharts/redis -n redis --create-namespace --set global.storageClassnfs# redis 默认会安装1个master3个node可以通过以下参数来修改 --set replica.replicaCount2 --set master.count1
$ helm install --set replica.persistence.size2Gi --set master.persistence.size1Gi \--set global.storageClassmanual --set replica.replicaCount2 --set master.count1 linkage-redis bitnami/redis# redis-cluster 默认创建6个 nodes每个nodes包括一个master及一个replica可以调整参数该边node数目但调整后的nodes数不能3
$ helm install --set cluster.nodes3 --set replica.persistence.size2Gi --set master.persistence.size2Gi \--set global.storageClassmanual linkage-redis bitnami/redis-cluster参考这篇文章搭建出来的 pods 一直处于 pending 状态k8s 如何访问redis集群
