纪念馆网站建设,网站开发技术有什么,怎样进入谷歌网站,办公楼网络设计方案1、概述我们知道在 Kubernetes 容器编排平台中, 我们可以非常方便的进行应用的扩容缩, 同时也能非常方便的进行业务的迭代#xff0c;本章主要讲解在Kubernetes1.25搭建Redis单实例和Redis集群主从同步的环境流程步骤, 如果是高频访问重要的线上业务我们最好是部署在物理机器上…1、概述我们知道在 Kubernetes 容器编排平台中, 我们可以非常方便的进行应用的扩容缩, 同时也能非常方便的进行业务的迭代本章主要讲解在Kubernetes1.25搭建Redis单实例和Redis集群主从同步的环境流程步骤, 如果是高频访问重要的线上业务我们最好是部署在物理机器上;2、Kubernetes环境说明# 集群信息
[rootk8s-master ~]# kubectl cluster-info
Kubernetes control plane is running at https://10.211.55.11:6443
CoreDNS is running at https://10.211.55.11:6443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxyTo further debug and diagnose cluster problems, use kubectl cluster-info dump.
[rootk8s-master ~]## 集群节点
[rootk8s-master ~]# kubectl get nodes -owide
NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
k8s-master Ready control-plane 18h v1.25.0 10.211.55.11 none CentOS Stream 8 4.18.0-408.el8.x86_64 docker://20.10.22
k8s-node1 Ready none 18h v1.25.0 10.211.55.12 none CentOS Stream 8 4.18.0-408.el8.x86_64 docker://20.10.22
k8s-node2 Ready none 18h v1.25.0 10.211.55.13 none CentOS Stream 8 4.18.0-408.el8.x86_64 docker://20.10.22# 动态卷
[rootk8s-master ~]# kubectl get sc -n dev
NAME PROVISIONER RECLAIMPOLICY VOLUMEBINDINGMODE ALLOWVOLUMEEXPANSION AGE
nfs-storage storage-nfs Delete Immediate false 6s3、通过configMap传入配置文件、动态存储卷存储持久化redis数据、hostPath存储日志知识储备configMap不熟悉的朋友请看这篇文章https://blog.csdn.net/u011837804/article/details/128590751动态存储卷不熟悉的朋友请看这篇文章https://blog.csdn.net/u011837804/article/details/128692744hostPath不熟悉的朋友请看这篇文章https://blog.csdn.net/u011837804/article/details/1285885343.1、创建configMap3.1.1、redis配置文件Redis配置文件/root/redis/redis.conf# 绑定任意接口、服务端口、后台运行。
bind 0.0.0.0
port 6379
# 非常大的巨坑在使用k8s中的container作为redis容器时其daemonize no一定要设置为no
daemonize no
supervised no# redis服务pid进程文件名
pidfile /var/run/redis.pid# 关闭保护模式并配置使用密码访问
protected-mode no
requirepass 123456# 数据文件保存路径rdb/AOF文件也保存在这里
dir /data# 日志文件记录文件(notice / verbose)
# /var/log/redis/redis.log
loglevel verbose
logfile /logs/redis.log# 最大客户端连接数
maxclients 10000# 客户端连接空闲多久后断开连接单位秒0表示禁用
timeout 300
tcp-keepalive 60 # 内存初始化
maxmemory 1gb
maxmemory-policy volatile-lru
slowlog-max-len 128
lua-time-limit 5000# Redis 数据持久化(rdb/aof)配置
# 数据自动保存脚本条件例如300s中有10key发生变化
save 300 100
save 60 10000
# RDB 文件名
dbfilename dump.rdb
# 对RDB文件进行压缩建议以磁盘空间换CPU时间。
rdbcompression yes
# 版本5的RDB有一个CRC64算法的校验和放在了文件的最后。这将使文件格式更加可靠。
rdbchecksum yes
# RDB自动触发策略是否启用默认为yes
rdb-save-incremental-fsync yes# AOF开启
appendonly yes
# AOF文件名
appendfilename appendonly.aof
# 可选值 always everysecno建议设置为everysec
appendfsync everysec# Redis风险命令重命名
# rename-command CONFIG b840fc02d524045429941cc15f59e41cb7be6c52
rename-command FLUSHDB b840fc02d524045429941cc15f59e41cb7be6c53
rename-command FLUSHALL b840fc02d524045429941cc15f59e41cb7be6c54
rename-command EVAL b840fc02d524045429941cc15f59e41cb7be6c55
rename-command DEBUG b840fc02d524045429941cc15f59e41cb7be6c56
# rename-command SHUTDOWN SHUTDOWN3.1.2、创建confMap# 查看当前已有cm
[rootk8s-master redis]# kubectl get cm -n dev
NAME DATA AGE
kube-root-ca.crt 1 76m
[rootk8s-master redis]#
[rootk8s-master redis]#
# 创建cm 名称为 redis-single 后面要用到
[rootk8s-master redis]# kubectl create configmap -n dev redis-single --from-file/root/redis/redis.conf
configmap/redis-single created
[rootk8s-master redis]#
# 已创建
[rootk8s-master redis]# kubectl get cm -n dev
NAME DATA AGE
kube-root-ca.crt 1 76m
redis-single 1 5s
[rootk8s-master redis]## 查看cm内容
[rootk8s-master redis]# kubectl get cm -n dev -o json3.2、创建动态存储卷由于创建复杂就不在此重新贴过程按照https://blog.csdn.net/u011837804/article/details/128692744 此文章操作即可结果如下# 查看已创建sc 注意nfs-storage 下述要用到
[rootk8s-master ~]# kubectl get sc -n dev
NAME PROVISIONER RECLAIMPOLICY VOLUMEBINDINGMODE ALLOWVOLUMEEXPANSION AGE
nfs-storage storage-nfs Delete Immediate false 3h3m3.3、开始部署单实例redis3.3.1、配置文件redis-single-cm.yamlapiVersion: apps/v1
kind: StatefulSet
metadata:name: redis-cmnamespace: dev
spec:serviceName: redis-single-cm-servicereplicas: 1selector:matchLabels:app: redis-cmtemplate:metadata:labels:app: redis-cmspec:containers:- name: redisimage: redis:7.0imagePullPolicy: IfNotPresentports:- containerPort: 6379name: servercommand: [ redis-server, /conf/redis.conf]volumeMounts:# 从configmap获取的配置文件挂载到指定文件中- name: confmountPath: /conf/redis.confsubPath: redis.conf# 动态存储卷存储持久化redis数据 - name: datamountPath: /data- name: logsmountPath: /logs# 时区设置- name: timezonemountPath: /etc/localtime volumes:- name: conf# 配置文件采用configMapconfigMap:name: redis-singledefaultMode: 0755# 日志采用hostPath卷- name: logshostPath:type: DirectoryOrCreate path: /root/redis/logs# 时区定义- name: timezone hostPath:path: /usr/share/zoneinfo/Asia/Shanghai# 存储卷认领 volumeClaimTemplates:- metadata:name: dataspec:accessModes: [ ReadWriteOnce ]# 上述创建的sc名称storageClassName: nfs-storageresources:requests:storage: 50Mi
---
apiVersion: v1
kind: Service
metadata:name: redis-single-cm-servicenamespace: dev
spec:type: ClusterIPports:- port: 6379targetPort: 6379name: serverselector:app: redis-cm3.3.2、执行并查看效果# 执行redis-single-cm.yaml
[rootk8s-master ~]# kubectl apply -f redis-single-cm.yaml
statefulset.apps/redis-cm created
service/redis-single-cm-service created
[rootk8s-master ~]## 查看 pods已创建成功说明我们的配置无任何问题
[rootk8s-master ~]# kubectl get pods -n dev
NAME READY STATUS RESTARTS AGE
nfs-client-provisioner-79599dbcfb-gpq78 1/1 Running 0 123m
redis-cm-0 1/1 Running 0 6s
[rootk8s-master ~]## pvc已自动创建
[rootk8s-master ~]# kubectl get pvc -n dev
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
data-redis-cm-0 Bound pvc-32d16583-cdd7-4ab7-a745-432ff43c146f 50Mi RWO nfs-storage 116s
[rootk8s-master ~]## 查看nfs共享文件确认redis持久化数据已存储
[rootk8s-master nfs]# pwd
/root/data/nfs
[rootk8s-master nfs]#
[rootk8s-master nfs]# ls
dev-data-redis-cm-0-pvc-32d16583-cdd7-4ab7-a745-432ff43c146f
[rootk8s-master nfs]#
[rootk8s-master nfs]# cd dev-data-redis-cm-0-pvc-32d16583-cdd7-4ab7-a745-432ff43c146f/
[rootk8s-master dev-data-redis-cm-0-pvc-32d16583-cdd7-4ab7-a745-432ff43c146f]#
[rootk8s-master dev-data-redis-cm-0-pvc-32d16583-cdd7-4ab7-a745-432ff43c146f]# ls
appendonlydir dump.rdb
[rootk8s-master dev-data-redis-cm-0-pvc-32d16583-cdd7-4ab7-a745-432ff43c146f]#
