kubernetes基于helm部署gitlab-operator
这篇博文介绍如何在 Kubernetes 中使用helm部署 GitLab-operator。
先决条件
- 已运行的 Kubernetes 集群
- 负载均衡器，为ingress-nginx控制器提供EXTERNAL-IP，本示例使用metallb
- 默认存储类，为gitlab pods提供持久化存储，本示例使用openebs
- cert-manager，为gitlab提供自签名证书
root@ubuntu:~# kubectl -n metallb-system get pods
NAME READY STATUS RESTARTS AGE
metallb-controller-7d644d8b89-8748v 1/1 Running 0 10d
metallb-speaker-mbjfb 1/1 Running 0 10droot@ubuntu:~# kubectl get sc
NAME PROVISIONER RECLAIMPOLICY VOLUMEBINDINGMODE ALLOWVOLUMEEXPANSION AGE
openebs-hostpath (default) openebs.io/local Delete WaitForFirstConsumer false 10droot@ubuntu:~# kubectl -n cert-manager get pods
NAME READY STATUS RESTARTS AGE
cert-manager-7bd4d4cdff-8fbtb 1/1 Running 0 10d
cert-manager-cainjector-5cdc7f9c66-k494w 1/1 Running 0 10d
cert-manager-webhook-77c8d4fd8d-lwxxt 1/1 Running 0 10d
项目地址：https://gitlab.com/gitlab-org/cloud-native/gitlab-operator
官方文档：https://docs.gitlab.com/operator/installation.html
部署gitlab-operator
添加gitlab-operator helm 仓库
helm repo add gitlab-operator https://gitlab.com/api/v4/projects/18899486/packages/helm/stable
使用helm部署gitlab-operator
helm upgrade --install gitlab-operator gitlab-operator/gitlab-operator \--namespace gitlab-system \--create-namespace
查看运行的gitlab-operator pods
root@ubuntu:~# kubectl -n gitlab-system get pods
NAME READY STATUS RESTARTS AGE
gitlab-controller-manager-8f9956d6f-78h26 2/2 Running 0 22s
创建 GitLab 自定义资源 (CR)
$ cat mygitlab.yaml
apiVersion: apps.gitlab.com/v1beta1
kind: GitLab
metadata:name: gitlabnamespace: gitlab-system
spec:chart:version: "7.1.2" # https://gitlab.com/gitlab-org/cloud-native/gitlab-operator/-/blob/master/CHART_VERSIONSvalues:global:edition: cehosts:domain: example.comingress:configureCertmanager: truecertmanager-issuer:email: youremail@example.com
部署gitlab实例
kubectl apply -f mygitlab.yaml
查看运行的pods
root@ubuntu:~# kubectl -n gitlab-system get pods
NAME READY STATUS RESTARTS AGE
gitlab-controller-manager-8f9956d6f-78h26 2/2 Running 0 6m20s
gitlab-gitaly-0 1/1 Running 0 4m2s
gitlab-gitlab-exporter-5995f6684b-fjpjz 1/1 Running 0 3m20s
gitlab-gitlab-shell-7994f99cb6-r2s8n 1/1 Running 0 3m21s
gitlab-kas-766596f95c-4ljtx 1/1 Running 0 3m20s
gitlab-migrations-1-f92-1-4rhpc 0/1 Completed 0 3m20s
gitlab-minio-597fdc58cd-74k6r 1/1 Running 0 4m2s
gitlab-minio-create-buckets-1-wghhz 0/1 Completed 0 4m2s
gitlab-nginx-ingress-controller-cdb4f99d6-l9tqm 1/1 Running 0 4m22s
gitlab-nginx-ingress-controller-cdb4f99d6-pmf9p 1/1 Running 0 4m22s
gitlab-postgresql-0 2/2 Running 0 4m2s
gitlab-redis-master-0 2/2 Running 0 4m2s
gitlab-registry-ddb69f4c9-cqrrq 1/1 Running 0 3m21s
gitlab-shared-secrets-1-z8p-ntk7g 0/1 Completed 0 4m22s
gitlab-sidekiq-all-in-1-v2-74489fc8b9-b7s2z 1/1 Running 0 87s
gitlab-toolbox-668cb9bdc7-nhx89 1/1 Running 0 3m20s
gitlab-webservice-default-558795cff7-zvwsq 2/2 Running 0 87s
查看service，确认gitlab-nginx-ingress-controller service是否分配EXTERNAL-IP
root@ubuntu:~# kubectl -n gitlab-system get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
gitlab-controller-manager-metrics-service ClusterIP 10.96.0.121 <none> 8443/TCP 6m48s
gitlab-gitaly ClusterIP None <none> 8075/TCP,9236/TCP 4m30s
gitlab-gitlab-exporter ClusterIP 10.96.0.110 <none> 9168/TCP 3m48s
gitlab-gitlab-shell ClusterIP 10.96.3.153 <none> 22/TCP 3m49s
gitlab-kas ClusterIP 10.96.3.81 <none> 8150/TCP,8153/TCP,8154/TCP,8151/TCP 3m48s
gitlab-minio-svc ClusterIP 10.96.0.154 <none> 9000/TCP 4m30s
gitlab-nginx-ingress-controller LoadBalancer 10.96.3.92 192.168.72.200 80:31118/TCP,443:30763/TCP,22:32004/TCP 4m50s
gitlab-nginx-ingress-controller-metrics ClusterIP 10.96.2.133 <none> 10254/TCP 4m50s
gitlab-postgresql ClusterIP 10.96.2.120 <none> 5432/TCP 4m30s
gitlab-postgresql-hl ClusterIP None <none> 5432/TCP 4m30s
gitlab-postgresql-metrics ClusterIP 10.96.0.76 <none> 9187/TCP 4m30s
gitlab-redis-headless ClusterIP None <none> 6379/TCP 4m30s
gitlab-redis-master ClusterIP 10.96.3.221 <none> 6379/TCP 4m30s
gitlab-redis-metrics ClusterIP 10.96.0.82 <none> 9121/TCP 4m30s
gitlab-registry ClusterIP 10.96.1.1 <none> 5000/TCP 3m49s
gitlab-webhook-service ClusterIP 10.96.2.47 <none> 443/TCP 6m48s
gitlab-webservice-default ClusterIP 10.96.2.13 <none> 8080/TCP,8181/TCP,8083/TCP 3m48s
查看ingress
root@ubuntu:~# kubectl -n gitlab-system get ingress
NAME CLASS HOSTS ADDRESS PORTS AGE
gitlab-kas gitlab-nginx kas.cloudce.com 192.168.72.201 80, 443 4m17s
gitlab-minio gitlab-nginx minio.cloudce.com 192.168.72.201 80, 443 4m59s
gitlab-registry gitlab-nginx registry.cloudce.com 192.168.72.201 80, 443 4m18s
gitlab-webservice-default gitlab-nginx gitlab.cloudce.com 192.168.72.201 80, 443 4m17s
查看pv卷
root@ubuntu:~# kubectl -n gitlab-system get pv
NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGE
pvc-0465c308-b141-409a-b6bc-24045c2ec944 8Gi RWO Delete Bound gitlab-system/data-gitlab-postgresql-0 openebs-hostpath 5m33s
pvc-49fae8fb-ce89-4001-888d-03aa39bd2143 8Gi RWO Delete Bound gitlab-system/redis-data-gitlab-redis-master-0 openebs-hostpath 5m32s
pvc-7a77d996-1115-4a1c-9bb0-d3fe91441482 50Gi RWO Delete Bound gitlab-system/repo-data-gitlab-gitaly-0 openebs-hostpath 5m34s
pvc-ea6981f6-742b-40c8-be1e-ad7cea21845c 10Gi RWO Delete Bound gitlab-system/gitlab-minio openebs-hostpath 5m32s
访问gitlab
获取gitlab UI root用户的登陆密码
root@ubuntu:~# kubectl -n gitlab-system get secret gitlab-gitlab-initial-root-password -ojsonpath='{.data.password}' | base64 --decode ; echo
bvTyB0UUwXA3VhVywKOIzdD29KVJV64LB2Td0pyzAJUYe8pcTTOFSYla1SVpXeIx
获取gitlab UI 登陆的URL地址，如果设置 global.hosts.domain=example.com，那么访问地址为
https://gitlab.example.com
配置本地域名解析，其中192.168.72.200为上文gitlab-nginx-ingress-controller service的EXTERNAL-IP
gitlab.example.com 192.168.72.200
登录gitlab后界面如下：
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