微信公众号搜索DevOps和k8s全栈技术 ，即可关注我的公众号，也可通过扫描文章最后的二维码关注，每天都会分享技术文章供大家参考阅读~，拥抱开源，同大家共同进步！标题错了，下篇是helm部署gitlab

搭建nfs服务器

1.为什么搭建nfs服务器？

因为我们要使用nfs作为持久化存储，创建的pv后端存储时需要nfs，所以需要搭建nfs服务。

2.安装nfs服务

选择自己的任意一台机器，我选择k8s的master1节点，对应的机器ip是192.168.0.6，在192.168.0.6上执行如下步骤，大家在自己环境找一台k8s节点的机器安装就可以了~

（1）yum安装nfs

yum install nfs-utils -y

systemctl start nfs

chkconfig nfs on

（2）在master1上创建一个nfs共享目录

mkdir  /data/v3   -p

mkdir  /data/v4

mkdir  /data/v5

cat  /etc/exports

/data/v3     192.168.0.0/24(rw,no_root_squash)

/data/v4     192.168.0.0/24(rw,no_root_squash)

/data/v5     192.168.0.0/24(rw,no_root_squash)

exportfs -arv   使配置文件生效

systemctl restart nfs

（3）k8s的各个node节点也需要安装nfs

yum install nfs-utils -y

systemctl start nfs

chkconfig nfs on

创建安装gitlab需要的pv和pvc

1.创建一个名称空间

kubectl create ns kube-ops

2.创建gitlab需要的pv和pvc

cat pv_pvc_gitlab.yaml

apiVersion: v1
kind: PersistentVolume
metadata:
  name: gitlabt
spec:
  capacity:
    storage: 10Gi
  accessModes:
  - ReadWriteMany
  persistentVolumeReclaimPolicy: Delete
  nfs:
    server: 192.168.0.6  #这个就是nfs服务端的机器ip，也就是k8s的master1节点ip
    path: /data/v5
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: gitlabt
  namespace: kube-ops
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 10Gi

注意：

nfs:
  server: 192.168.0.6  
   #这个就是nfs服务端的机器ip，也就是k8s的master1节点ip

 通过kubectl apply更新yaml文件

kubectl apply -f pv_pvc_gitlab.yaml

查看pv和pvc是否绑定

kubectl get pvc -n kube-ops

显示如下，说明绑定成功了

NAME      STATUS   VOLUME    CAPACITY   ACCESS MODES   STORAGECLASS   AGE
gitlabt   Bound    gitlabt   10Gi       RWX                           2m

3.创建postsql的pv和pvc

cat pv_pvc_postsql.yaml

apiVersion: v1
kind: PersistentVolume
metadata:
  name: postsql
spec:
  capacity:
    storage: 10Gi
  accessModes:
  - ReadWriteMany
  persistentVolumeReclaimPolicy: Delete
  nfs:
    server: 192.168.0.6
    path: /data/v4
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: postsql
  namespace: kube-ops
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 10Gi

通过kubectl apply更新yaml文件

kubectl apply -f  pv_pvc_postsql.yaml

查看pv和pvc是否绑定

kubectl get pvc -n kube-ops

显示如下，说明postsql的pvc和pv绑定成功了

NAME      STATUS   VOLUME    CAPACITY   ACCESS MODES   STORAGECLASS   AGE
gitlabt   Bound    gitlabt   10Gi       RWX                           5m6s
postsql   Bound    postsql   10Gi       RWX                           2s

4.创建redis的pv和pvc

cat  pv_pvc_redis.yaml

apiVersion: v1
kind: PersistentVolume
metadata:
  name: data
spec:
  capacity:
    storage: 20Gi
  accessModes:
  - ReadWriteMany
  persistentVolumeReclaimPolicy: Delete
  nfs:
    server: 192.168.0.6
    path: /data/v3
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: data
  namespace: kube-ops
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 20Gi

通过kubectl apply更新yaml文件

kubectl apply -f  pv_pvc_redis.yaml

查看pv和pvc是否绑定

kubectl get pvc -n kube-ops

显示如下，说明gitlab的pvc和pv绑定成功了

NAME      STATUS   VOLUME    CAPACITY   ACCESS MODES   STORAGECLASS   AGE
data      Bound    data      20Gi       RWX                           5s
gitlabt   Bound    gitlabt   10Gi       RWX                           7m7s
postsql   Bound    postsql   10Gi       RWX                           2m3s

安装postgresql服务

cat  gitlab-postgresql.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: postgresql
  namespace: kube-ops
  labels:
    name: postgresql
spec:
  selector:
    matchLabels:
       name: postgresql
  template:
    metadata:
      name: postgresql
      labels:
        name: postgresql
    spec:
      containers:
      - name: postgresql
        image: sameersbn/postgresql:10
        imagePullPolicy: IfNotPresent
        env:
        - name: DB_USER
          value: gitlab
        - name: DB_PASS
          value: passw0rd
        - name: DB_NAME
          value: gitlab_production
        - name: DB_EXTENSION
          value: pg_trgm
        ports:
        - name: postgres
          containerPort: 5432
        volumeMounts:
        - mountPath: /var/lib/postgresql
          name: data
        livenessProbe:
          exec:
            command:
            - pg_isready
            - -h
            - localhost
            - -U
            - postgres
          initialDelaySeconds: 30
          timeoutSeconds: 5
        readinessProbe:
          exec:
            command:
            - pg_isready
            - -h
            - localhost
            - -U
            - postgres
          initialDelaySeconds: 5
          timeoutSeconds: 1
      volumes:
      - name: data
        persistentVolumeClaim:
          claimName: postsql
---
apiVersion: v1
kind: Service
metadata:
  name: postgresql
  namespace: kube-ops
  labels:
    name: postgresql
spec:
  ports:
    - name: postgres
      port: 5432
      targetPort: postgres
  selector:
    name: postgresql

通过kubectl apply更新yaml文件

 kubectl apply -f gitlab-postgresql.yaml

查看postgresql是否部署成功

kubectl get pods -n kube-ops

显示如下，说明postgresql部署成功

NAME                          READY   STATUS    RESTARTS   AGE
postgresql-79f85cdfb4-r64q5   1/1     Running   0          68s

安装gitlab需要的redis服务

cat  gitlab-redis.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: redis
  namespace: kube-ops
  labels:
    name: redis
spec:
  selector:
    matchLabels:
      name: redis
  template:
    metadata:
      name: redis
      labels:
        name: redis
    spec:
      containers:
      - name: redis
        image: sameersbn/redis
        imagePullPolicy: IfNotPresent
        ports:
        - name: redis
          containerPort: 6379
        volumeMounts:
        - mountPath: /var/lib/redis
          name: data
        livenessProbe:
          exec:
            command:
            - redis-cli
            - ping
          initialDelaySeconds: 30
          timeoutSeconds: 5
        readinessProbe:
          exec:
            command:
            - redis-cli
            - ping
          initialDelaySeconds: 5
          timeoutSeconds: 1
      volumes:
      - name: data
        persistentVolumeClaim:
          claimName: data
---
apiVersion: v1
kind: Service
metadata:
  name: redis
  namespace: kube-ops
  labels:
    name: redis
spec:
  ports:
    - name: redis
      port: 6379
      targetPort: redis
  selector:
    name: redis

通过kubectl apply更新yaml文件

 kubectl apply -f gitlab-redis.yaml

查看postgresql是否部署成功

kubectl get pods -n kube-ops

显示如下，说明redis部署成功

NAME                          READY   STATUS    RESTARTS   AGE
postgresql-79f85cdfb4-r64q5   1/1     Running   0          4m30s
redis-56c8dc76cd-q4q75        1/1     Running   0          65s

安装gitlab服务

cat  gitlab.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: gitlab
  namespace: kube-ops
  labels:
    name: gitlab
spec:
  selector:
    matchLabels:
        name: gitlab
  template:
    metadata:
      name: gitlab
      labels:
        name: gitlab
    spec:
      containers:
      - name: gitlab
        image: sameersbn/gitlab:11.8.1
        imagePullPolicy: IfNotPresent
        env:
        - name: TZ
          value: Asia/Shanghai
        - name: GITLAB_TIMEZONE
          value: Beijing
        - name: GITLAB_SECRETS_DB_KEY_BASE
          value: long-and-random-alpha-numeric-string
        - name: GITLAB_SECRETS_SECRET_KEY_BASE
          value: long-and-RANDOM-ALPHA-NUMERIc-string
        - name: GITLAB_SECRETS_OTP_KEY_BASE
          value: long-and-random-alpha-numeric-string
        - name: GITLAB_ROOT_PASSWORD
          value: admin321
        - name: GITLAB_ROOT_EMAIL
          value: 19xxxxxxxx@qq.com
        - name: GITLAB_HOST
          value: 192.168.0.6
        - name: GITLAB_PORT
          value: "30852"
        - name: GITLAB_SSH_PORT
          value: "32353"
        - name: GITLAB_NOTIFY_ON_BROKEN_BUILDS
          value: "true"
        - name: GITLAB_NOTIFY_PUSHER
          value: "false"
        - name: GITLAB_BACKUP_SCHEDULE
          value: daily
        - name: GITLAB_BACKUP_TIME
          value: 01:00
        - name: DB_TYPE
          value: postgres
        - name: DB_HOST
          value: postgresql
        - name: DB_PORT
          value: "5432"
        - name: DB_USER
          value: gitlab
        - name: DB_PASS
          value: passw0rd
        - name: DB_NAME
          value: gitlab_production
        - name: REDIS_HOST
          value: redis
        - name: REDIS_PORT
          value: "6379"
        ports:
        - name: http
          containerPort: 80
        - name: ssh
          containerPort: 22
        volumeMounts:
        - mountPath: /home/git/data
          name: data
        livenessProbe:
          httpGet:
            path: /
            port: 80
          initialDelaySeconds: 180
          timeoutSeconds: 5
        readinessProbe:
          httpGet:
            path: /
            port: 80
          initialDelaySeconds: 5
          timeoutSeconds: 1
      volumes:
      - name: data
        persistentVolumeClaim:
          claimName: gitlabt
---
apiVersion: v1
kind: Service
metadata:
  name: gitlab
  namespace: kube-ops
  labels:
    name: gitlab
spec:
  ports:
    - name: http
      port: 80
      targetPort: http
      nodePort: 30852
    - name: ssh
      port: 22
      nodePort: 32353
      targetPort: ssh
  selector:
    name: gitlab
  type: NodePort

注意：

上面文件里的GITLAB_ROOT_EMAIL应该设置成自己的邮箱地址，不要用我的，用我的你们后面注册gitlab账号会有问题

- name: GITLAB_ROOT_EMAIL
  value: 19xxxxxxxx@qq.com

通过kubectl apply更新yaml文件

 kubectl apply -f gitlab.yaml

查看postgresql是否部署成功

kubectl get pods -n kube-ops

NAME                          READY   STATUS    RESTARTS   AGE
gitlab-cdff65b5f-7kfxn        1/1     Running   0          2m26s
postgresql-79f85cdfb4-r64q5   1/1     Running   0          10m
redis-56c8dc76cd-q4q75        1/1     Running   0          6m42s

访问gitlab web界面

上面部署都没问题的话，我们开始访问gitlab的web ui界面，具体步骤如下

1.查看gitlab在宿主机暴露的端口

kubectl get svc -n kube-ops

显示如下：

gitlab       NodePort    10.98.248.116    <none>        80:30852/TCP,22:32353/TCP   5m25s

我们在浏览器访问k8s的master1节点的IP:30852即可访问到gitlab web界面,我访问的地址是192.168.0.6:30852，出现如下界面

第一次登陆，我们需要点击注册Registry

Full name：可以随便起名字，符合要求即可，也可和我的保持一致，如下
gitlab-admin
Username：可以随便起名字，符合要求即可，也可和我的保持一致，如下
gitlab-admin
Email: 这个写你们自己的邮箱，跟你们gitlab.yaml文件里的邮箱地址一致即可，我写的qq邮箱，如下
198xxxxxxx@qq.com
Email confirmation:  这个就是跟上面Email对应的值保持一致即可，如下
198xxxxxxx@qq.com
Password: 自己设置个密码，我设置的是admin123
admin123

上面写好之后点击最下面的Registry即可完成注册并登陆

登陆之后显示如下：

技术交流群

可以加我微信：luckylucky421302 ，拉您进技术群交流，也可扫描下面的二维码直接进群，一起学习交流~

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