Redis 解决(外部服务器连接失败)Unable to connect to Redis server: 192.168.18.150:6379

本文介绍如何通过修改Redis配置文件,禁用保护模式并允许远程连接。步骤包括找到配置文件,修改保护模式设置,注释掉绑定地址,并重启服务。

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1.找到redis配置文件/etc/redis.conf

2.修改 protected-mode yes 改为:protected-mode no

3.注释掉 #bin 127.0.0.1

4.重启redis

kubernetes GitLab + Ingressroot@k8s-m001:~/devops/test-devops/gitlab# ll total 44 drwxr-xr-x 3 root root 4096 Jun 15 18:25 ./ drwxr-xr-x 7 root root 4096 Jun 15 18:21 ../ -rw-r--r-- 1 root root 1337 Jun 15 18:21 gitlab-deployment.yaml -rw-r--r-- 1 root root 520 Jun 15 18:22 gitlab-ingress.yaml -rw-r--r-- 1 root root 723 Jun 15 17:51 gitlab-nfs-pvc-pro.yaml -rw-r--r-- 1 root root 58 Jun 14 21:55 gitlab-ns.yaml -rw-r--r-- 1 root root 293 Jun 15 18:25 gitlab-services.yaml drwxrwxrwx 2 root root 4096 Jun 15 16:31 gitlab.wh02.com_nginx/ -rw-r--r-- 1 root root 9078 Jun 15 16:28 gitlab.wh02.com_nginx.zip root@k8s-m001:~/devops/test-devops/gitlab# cat gitlab-deployment.yaml apiVersion: apps/v1 kind: Deployment metadata: name: gitlab namespace: gitlab spec: selector: matchLabels: app: gitlab replicas: 1 template: metadata: labels: app: gitlab spec: securityContext: fsGroup: 1000 containers: - name: gitlab image: harbor.wh02.com/cicd/gitlab/gitlab-ce:17.11.0-ce.0 imagePullPolicy: Always ports: - containerPort: 80 - containerPort: 22 env: - name: GITLAB_OMNIBUS_CONFIG value: | external_url 'https://gitlab.wh02.com' gitlab_rails['initial_root_password'] = "Aa123123" gitlab_rails['gitlab_default_locale'] = 'zh_CN' gitlab_rails['gitlab_default_locale_in_system'] = true volumeMounts: - name: gitlab-storage mountPath: /var/opt/gitlab subPath: data - name: gitlab-storage mountPath: /var/log/gitlab subPath: logs - name: gitlab-storage mountPath: /etc/gitlab subPath: config resources: requests: cpu: "2" memory: "5Gi" limits: cpu: "2" memory: "6Gi" volumes: - name: gitlab-storage persistentVolumeClaim: claimName: gitlab-pvc root@k8s-m001:~/devops/test-devops/gitlab# cat gitlab-ingress.yaml apiVersion: networking.k8s.io/v1 kind: Ingress metadata: name: gitlab-ingress namespace: gitlab annotations: nginx.ingress.kubernetes.io/ssl-redirect: "true" spec: ingressClassName: nginx tls: - hosts: - gitlab.wh02.com secretName: gitlab-tls rules: - host: gitlab.wh02.com http: paths: - path: / pathType: Prefix backend: service: name: gitlab-service port: number: 80 root@k8s-m001:~/devops/test-devops/gitlab# cat gitlab-nfs-pvc-pro.yaml apiVersion: storage.k8s.io/v1 kind: StorageClass metadata: name: nfs-gitlab-static provisioner: kubernetes.io/no-provisioner volumeBindingMode: WaitForFirstConsumer reclaimPolicy: Retain --- apiVersion: v1 kind: PersistentVolume metadata: name: gitlab-pv spec: capacity: storage: 50Gi accessModes: - ReadWriteMany nfs: server: 192.168.3.101 path: /data/k8sdata/gitlab_data storageClassName: nfs-gitlab-static persistentVolumeReclaimPolicy: Retain --- apiVersion: v1 kind: PersistentVolumeClaim metadata: name: gitlab-pvc namespace: gitlab spec: accessModes: - ReadWriteMany resources: requests: storage: 50Gi storageClassName: nfs-gitlab-static volumeName: gitlab-pv root@k8s-m001:~/devops/test-devops/gitlab# cat gitlab-ns.yaml apiVersion: v1 kind: Namespace metadata: name: gitlab root@k8s-m001:~/devops/test-devops/gitlab# cat gitlab-services.yaml apiVersion: v1 kind: Service metadata: name: gitlab-service namespace: gitlab spec: selector: app: gitlab type: NodePort ports: - name: http port: 80 targetPort: 80 # nodePort: 30030 - name: ssh port: 22 targetPort: 22 # nodePort: 30022 root@k8s-m001:~/devops/test-devops/gitlab# kubectl get secrets -n gitlab No resources found in gitlab namespace. root@k8s-m001:~/devops/test-devops/gitlab# kubectl get secrets -A NAMESPACE NAME TYPE DATA AGE ingress-nginx ingress-nginx-admission Opaque 3 97m jenkins harbor-pull-secret kubernetes.io/dockerconfigjson 1 7h41m kube-system calico-etcd-secrets Opaque 3 40h kubernetes-dashboard dashboard-admin-user kubernetes.io/service-account-token 3 65d kubernetes-dashboard kubernetes-dashboard-certs Opaque 0 65d kubernetes-dashboard kubernetes-dashboard-csrf Opaque 1 65d kubernetes-dashboard kubernetes-dashboard-key-holder Opaque 2 65d kuboard kuboard-admin-token kubernetes.io/service-account-token 3 40h kuboard kuboard-viewer-token kubernetes.io/service-account-token 3 40h root@k8s-m001:~/devops/test-devops/gitlab# kubectl get pv,pvc -n gitlab NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS VOLUMEATTRIBUTESCLASS REASON AGE persistentvolume/gitlab-pv 50Gi RWX Retain Bound gitlab/gitlab-pvc nfs-gitlab-static <unset> 44m persistentvolume/jenkins-pv 10Gi RWX Retain Released jenkins/jenkins-pvc <unset> 26h persistentvolume/pvc-1464be8d-5bc8-4ba1-8d91-c282167ea4cf 50Gi RWX Delete Bound jenkins/jenkins-pvc nfs-dynamic <unset> 7h41m persistentvolume/pvc-49a9790f-7ebf-43a6-8454-b90cf50d2f3d 50Gi RWX Retain Released jenkins/jenkins-pvc nfs-dynamic <unset> 7h54m persistentvolume/pvc-4ddd9d5b-a734-4889-af64-0c96f340ce11 50Gi RWX Retain Released jenkins/jenkins-pvc nfs-dynamic <unset> 8h NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS VOLUMEATTRIBUTESCLASS AGE persistentvolumeclaim/gitlab-pvc Bound gitlab-pv 50Gi RWX nfs-gitlab-static <unset> 44m
06-17
<think>我们正在配置GitLab在Kubernetes中的部署,需要以下资源:1.Deployment:定义GitLab的Pod模板和副本数等。2.Service:暴露GitLab服务以便内部或外部访问。3.Ingress:提供外部访问的路由规则。4.存储相关:由于GitLab需要持久化数据,我们需要StorageClass、PersistentVolume(PV)和PersistentVolumeClaim(PVC)。但注意,如果使用动态供应,我们只需创建StorageClass和PVC,PV会由存储系统自动创建;如果使用静态供应,则需要预先创建PV。根据引用内容,我们看到了静态PV和PVC的配置示例(引用[2]和引用[3]),以及动态PV的提及(引用[2])。同时,引用[5]提供了一个Deployment的示例,其中使用了PVC和亲和性设置。考虑到GitLab对存储的需求较大(包括仓库数据、数据库等),我们通常使用持久化存储。这里我们选择使用NFS作为后端存储(如引用[2]和引用[3]所示),并采用静态PV的方式,因为动态PV需要配置StorageClass和Provisioner,而静态PV更直接。步骤概述:1.创建PV:为GitLab的数据目录提供持久化存储。2.创建PVC:供Deployment中的Pod挂载。3.创建Deployment:定义GitLab容器,挂载PVC到相应路径。4.创建Service:为GitLab的HTTP和SSH服务(如果需要)暴露端口。5.创建Ingress:配置访问GitLab的域名和路径。注意:GitLab通常需要多个存储卷(例如,仓库数据、上传文件、数据库等),但为了简化,我们这里只创建一个PV/PVC用于数据存储。实际生产可能需要多个PVC。以下为具体资源配置文件:###1.创建PersistentVolume(PV)假设我们使用NFS服务器,IP为192.168.30.150,共享目录为/data/gitlab。创建PV:```yamlapiVersion:v1kind:PersistentVolumemetadata:name:gitlab-pvspec:capacity:storage:20Gi#根据实际需求调整accessModes:-ReadWriteManypersistentVolumeReclaimPolicy:Retain#GitLab数据重要,建议Retain,避免误删storageClassName:nfsnfs:path:/data/gitlabserver:192.168.30.150```###2.创建PersistentVolumeClaim(PVC)在同一个命名空间(例如gitlab)中创建PVC,绑定到上面的PV:```yamlapiVersion:v1kind:PersistentVolumeClaimmetadata:name:gitlab-pvcnamespace:gitlabspec:accessModes:-ReadWriteManyresources:requests:storage:20GistorageClassName:nfs```###3.创建DeploymentGitLab官方提供了Docker镜像,我们可以使用它。注意:GitLab需要配置多个环境变量,这里仅展示基本配置。同时,我们挂载PVC到GitLab的工作目录(通常是/var/opt/gitlab)。```yamlapiVersion:apps/v1kind:Deploymentmetadata:name:gitlabnamespace:gitlabspec:replicas:1#GitLab通常单实例,高可用需要复杂配置selector:matchLabels:app:gitlabtemplate:metadata:labels:app:gitlabspec:containers:-name:gitlabimage:gitlab/gitlab-ce:latestports:-containerPort:80#HTTP-containerPort:443#HTTPS-containerPort:22#SSHvolumeMounts:-name:gitlab-datamountPath:/var/opt/gitlabvolumes:-name:gitlab-datapersistentVolumeClaim:claimName:gitlab-pvc```注意:实际中,GitLab还需要配置数据库(PostgreSQL)和Redis,但为了简化,我们使用单容器镜像(包含所有组件)。生产环境建议拆分成多个微服务部署。###4.创建Service创建一个Service来暴露GitLab的端口:```yamlapiVersion:v1kind:Servicemetadata:name:gitlab-servicenamespace:gitlabspec:selector:app:gitlabports:-name:httpport:80targetPort:80-name:httpsport:443targetPort:443-name:sshport:22targetPort:22```###5.创建Ingress假设我们使用一个域名(例如gitlab.example.com)来访问GitLab。Ingress需要配置规则:```yamlapiVersion:networking.k8s.io/v1kind:Ingressmetadata:name:gitlab-ingressnamespace:gitlabannotations:nginx.ingress.kubernetes.io/rewrite-target:/spec:rules:-host:gitlab.example.comhttp:paths:-path:/pathType:Prefixbackend:service:name:gitlab-serviceport:number:80```注意:如果需要HTTPS,还需要配置TLS证书。###部署步骤1.创建命名空间:`kubectlcreatenamespacegitlab`2.依次应用上述PV、PVC、Deployment、Service和Ingress配置文件。###注意事项-存储:确保NFS服务器已正确设置,并且Kubernetes节点可以访问。-资源:GitLab对内存和CPU要求较高,可以在Deployment中设置资源限制。-初始化:GitLab容器首次启动需要较长时间(几分钟)进行初始化配置。-访问:部署完成后,通过Ingress的域名访问GitLab,初始用户名是root,初始密码在容器内的/etc/gitlab/initial_root_password文件中(注意:该文件24小时后会被删除)。以上配置是一个基础版本,实际生产环境可能需要更复杂的配置,例如配置数据库、Redis、SMTP等。§§相关问题§§1.如何为GitLabIngress配置HTTPS证书?2.如何扩展GitLab以实现高可用性?3.在Kubernetes中部署GitLab时如何配置外部数据库和Redis?</think>### 在 Kubernetes 中部署 GitLab 的完整配置方案 以下是 GitLab 在 Kubernetes 中的核心资源配置,包括 Deployment、Ingress、存储和服务。配置基于 NFS 持久化存储(参考引用[2][3])和 Ingress 路由(参考引用[5])。 #### 1. StorageClass 与持久化存储 (PV/PVC) ```yaml # StorageClass (动态供应) apiVersion: storage.k8s.io/v1 kind: StorageClass metadata: name: nfs-gitlab provisioner: k8s-sigs.io/nfs-subdir-external-provisioner parameters: archiveOnDelete: "false" --- # PersistentVolumeClaim (动态绑定) apiVersion: v1 kind: PersistentVolumeClaim metadata: name: gitlab-data-pvc namespace: gitlab spec: storageClassName: nfs-gitlab accessModes: - ReadWriteMany resources: requests: storage: 50Gi # 根据数据量调整 ``` > **说明**: > 动态存储方案简化了 PV 管理(引用[2])。若需静态 PV,参考引用[3]创建 PV 后绑定 PVC,需指定 `nfs.path` 和 `nfs.server`。 #### 2. Deployment 配置 ```yaml apiVersion: apps/v1 kind: Deployment metadata: name: gitlab namespace: gitlab spec: replicas: 1 # 生产环境建议 ≥2 selector: matchLabels: app: gitlab template: metadata: labels: app: gitlab spec: containers: - name: gitlab image: gitlab/gitlab-ce:latest ports: - containerPort: 80 # HTTP - containerPort: 443 # HTTPS - containerPort: 22 # SSH env: - name: GITLAB_OMNIBUS_CONFIG value: | external_url 'http://gitlab.example.com' gitlab_rails['initial_root_password'] = "your_secure_password" volumeMounts: - name: gitlab-storage mountPath: /var/opt/gitlab volumes: - name: gitlab-storage persistentVolumeClaim: claimName: gitlab-data-pvc ``` > **关键参数**: > - `external_url`: GitLab 访问地址(需与 Ingress host 匹配) > - 挂载点 `/var/opt/gitlab` 存储所有核心数据 > - 多副本时需配置共享存储(如 NFS)和 Redis/PostgreSQL 集群 #### 3. Service 配置 ```yaml apiVersion: v1 kind: Service metadata: name: gitlab-service namespace: gitlab spec: selector: app: gitlab ports: - name: http port: 80 targetPort: 80 - name: ssh port: 22 targetPort: 22 type: ClusterIP # Ingress 代理 HTTP,SSH 需 NodePort/LoadBalancer ``` #### 4. Ingress 配置 (HTTP/HTTPS) ```yaml apiVersion: networking.k8s.io/v1 kind: Ingress metadata: name: gitlab-ingress namespace: gitlab annotations: nginx.ingress.kubernetes.io/proxy-body-size: "0" # 允许大文件上传 cert-manager.io/cluster-issuer: "letsencrypt-prod" # 自动 TLS spec: tls: - hosts: - gitlab.example.com secretName: gitlab-tls rules: - host: gitlab.example.com http: paths: - path: / pathType: Prefix backend: service: name: gitlab-service port: number: 80 ``` > **HTTPS 说明**: > 需提前安装 [cert-manager](https://cert-manager.io/) 自动签发证书,或手动添加 TLS 证书到 Secret。 --- ### 部署步骤 1. **创建命名空间** ```bash kubectl create namespace gitlab ``` 2. **部署存储** ```bash kubectl apply -f storageclass.yaml -f pvc.yaml ``` 3. **部署 GitLab** ```bash kubectl apply -f deployment.yaml -f service.yaml ``` 4. **配置 Ingress** ```bash kubectl apply -f ingress.yaml ``` 5. **验证访问** - 将域名 `gitlab.example.com` 解析到 Ingress 控制器 IP - 访问 `http://gitlab.example.com` 或 `https://gitlab.example.com` --- ### 常见问题解决 1. **SSH 访问问题** - 方案 1:Service 改为 `NodePort`,通过节点 IP+端口访问 - 方案 2:部署 LoadBalancer 类型的 Service(云环境) 2. **存储性能优化** - 使用高性能存储(如 Ceph 或云盘) - 分离数据目录(如单独 PVC 挂载 `/var/opt/gitlab/git-data`) 3. **初始化配置** 首次启动后,通过 Pod 执行配置更新: ```bash kubectl exec -it gitlab-pod -n gitlab -- gitlab-ctl reconfigure ``` > **安全建议**: > - 定期备份 PVC 数据(引用[3]) > - 启用 HPA 自动扩缩容 > - 配置资源限制(CPU/Memory)
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