1、基本概念
使用k8s安装gitlab-ce，采用GlusterFS实现持久化(注意PG使用的是NFS存储，使用动态存储重启postgresql的pod后无法成功启动pg，待解决)，并集成了openLDAP。
注意：我公司使用的gitlab是独立于k8s集群之外的。
2、安装部署
最一开始使用的是helm安装gitlab，网上的文档应该全部都是使用的这个chart：https://github.com/helm/charts/tree/master/stable/gitlab-ce
但是这个chart已经被弃用，并推荐我们使用官方的chart
官方chart：https://docs.gitlab.com/ee/install/kubernetes/gitlab_chart.html
我在使用官方chart部署完成以后，发现启动的容器太多，就放弃了这个方式，使用yaml文件部署。
下载yaml文件：
git clone https://github.com/dotbalo/k8s.git
[root@k8s-master01 gitlab]# pwd
/root/k8s/gitlab
[root@k8s-master01 gitlab]# ls
gitlab-rc.yml gitlab-svc.yml postgresql-rc.yml postgresql-svc.yml redis-rc.yml redis-svc.yml
...
修改对应的配置：
主要修改每个rc的namespace，使用的持久化存储方式(当前yaml使用的GFS动态存储，pg使用的是NFS，按需修改)
修改gitlab-rc.yml里面的env，对应的LDAP信息和SMTP信息等
修改traefik的域名
创建gitlab
[root@k8s-master01 gitlab]# kubectl apply -f .
[root@k8s-master01 gitlab]# kubectl get po,svc,pvc -n public-service
NAME READY STATUS RESTARTS AGE
pod/gitlab-cctr6 1/1 Running 2 37m
pod/postgresql-c6trh 1/1 Running 1 37m
pod/redis-b6vfk 1/1 Running 0 3h
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/gitlab ClusterIP 10.109.163.143 <none> 80/TCP,22/TCP 24m
service/gitlab-balancer NodePort 10.108.77.162 <none> 80:30049/TCP,22:30347/TCP 14m
service/glusterfs-dynamic-gitlab-gitlab ClusterIP 10.102.192.68 <none> 1/TCP 59m
service/glusterfs-dynamic-gitlab-pg ClusterIP 10.96.14.147 <none> 1/TCP 37m
service/glusterfs-dynamic-gitlab-redis ClusterIP 10.106.253.41 <none> 1/TCP 1h
service/postgresql ClusterIP 10.104.102.20 <none> 5432/TCP 3h
service/redis ClusterIP 10.97.174.50 <none> 6379/TCP 3h
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
persistentvolumeclaim/gitlab-gitlab Bound pvc-b8249829-f6bf-11e8-9640-000c298bf023 5Gi RWX gluster-heketi 59m
persistentvolumeclaim/gitlab-pg Bound pvc-b40b6227-f6c2-11e8-9640-000c298bf023 5Gi RWX gluster-heketi 37m
persistentvolumeclaim/gitlab-redis Bound pvc-28d0276d-f6af-11e8-8d2c-000c293bfe27 3Gi RWX gluster-heketi 2h
等待全部pods启动成功后，访问gitlab，报错解决
3、访问
默认账号密码：root/gitlab123
语言更改，注意：此时翻译是实验性的，更改后需要重新登录
使用LDAP登录，均使用邮箱登录
4、创建项目
我公司一个项目下有很多子项目，所以首先创建一个群组：
创建项目
添加README
添加用户权限
登录至该用户可查看到此项目
添加SSH Key
如果没有Key需要使用ssh-keygen -t rsa -C "your@email.com"生成对应的Key。
5、拉取项目
创建分支
克隆代码，注意此时需要更改git的地址，因为ssh端口并非22，可以通过service查看nodeport的端口
λ git clone ssh://git@gitlab.xxx.net:32455/platform/app1.git
Cloning into 'app1'...
remote: Enumerating objects: 3, done.
remote: Counting objects: 100% (3/3), done.
remote: Total 3 (delta 0), reused 0 (delta 0)
Receiving objects: 100% (3/3), done.
Checking connectivity... done.
D:code
λ cd app1
D:codeapp1 (master)
λ git branch -a
* master
remotes/origin/HEAD -> origin/master
remotes/origin/app1-develop
remotes/origin/master
D:codeapp1 (master)
λ git checkout app1-develop
Branch app1-develop set up to track remote branch app1-develop from origin.
Switched to a new branch 'app1-develop'
D:codeapp1 (app1-develop)
λ touch.exe testfile
D:codeapp1 (app1-develop)
λ git add .
D:codeapp1 (app1-develop)
λ git commit -am "create a test file"
[app1-develop 9050e35] create a test file
1 file changed, 0 insertions(+), 0 deletions(-)
create mode 100644 testfile
D:codeapp1 (app1-develop)
λ git push origin app1-develop
Counting objects: 3, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 278 bytes | 0 bytes/s, done.
Total 3 (delta 0), reused 0 (delta 0)
remote:
remote: To create a merge request for app1-develop, visit:
remote: http://gitlab.xxx.net/platform/app1/merge_requests/new?merge_request%5Bsource_branch%5D=app1-develop remote:
To ssh://git@gitlab.xxx.net:32455/platform/app1.git
0a63d86..9050e35 app1-develop -> app1-develop
查看文件
协同开发，同样方式将其他用户加入此项目
克隆代码，并修改文件
[root@k8s-node02 ~]# git clone ssh://git@gitlab.xxx.net:32455/platform/app1.git
Cloning into 'app1'...
The authenticity of host '[gitlab.xxx.net]:32455 ([192.168.20.10]:32455)' can't be established.
ECDSA key fingerprint is SHA256:l6BYlMWpAWyXx/f5oTG8lK4JQvG9C2ZZ9opqdQZfIuc.
ECDSA key fingerprint is MD5:5b:b4:04:68:26:53:2e:ba:fe:f8:99:6c:8f:d3:fa:51.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '[gitlab.xxx.net]:32455,[192.168.20.10]:32455' (ECDSA) to the list of known hosts.
remote: Enumerating objects: 6, done.
remote: Counting objects: 100% (6/6), done.
remote: Compressing objects: 100% (3/3), done.
remote: Total 6 (delta 0), reused 0 (delta 0)
Receiving objects: 100% (6/6), done.
[root@k8s-node02 ~]# cd app1/
[root@k8s-node02 app1]# ls
README.md
[root@k8s-node02 app1]# git branch -a
* master
remotes/origin/HEAD -> origin/master
remotes/origin/app1-develop
remotes/origin/master
[root@k8s-node02 app1]# git checkout app1-develop
Branch app1-develop set up to track remote branch app1-develop from origin.
Switched to a new branch 'app1-develop'
[root@k8s-node02 app1]# ls
README.md testfile
[root@k8s-node02 app1]# echo "add something" >> testfile
[root@k8s-node02 app1]# git add .
[root@k8s-node02 app1]# git commit -am "add someting to testfile"
[app1-develop 69d693c] add someting to testfile
1 file changed, 1 insertion(+)
[root@k8s-node02 app1]# git push origin app1-develop
Counting objects: 5, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 305 bytes | 0 bytes/s, done.
Total 3 (delta 0), reused 0 (delta 0)
remote:
remote: To create a merge request for app1-develop, visit:
remote: http://gitlab.xxx.net/platform/app1/merge_requests/new?merge_request%5Bsource_branch%5D=app1-develop
remote:
To ssh://git@gitlab.xxx.net:32455/platform/app1.git
9050e35..69d693c app1-develop -> app1-develop
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