使用docker快速搭建gitlab服务器

对于想自己搭建一套属于自己(公司)的git服务的小伙伴有服了,我们使用gitlab的社区版,可以快速搭建一套gitlab服务。但是,gitlab的官方配置又比较麻烦,怎么办呢?使用docker吧!

环境:

Ubuntu 16.04LTS
Docker 1.11.2
gitlab 8.13.6

认识docker

Docker官网:www.docker.com

Docker简介:

PACKAGE YOUR APPLICATION INTO A STANDARDIZED UNIT FOR SOFTWARE DEVELOPMENT——Docker containers wrap a piece of software in a complete filesystem that contains everything needed to run: code, runtime, system tools, system libraries – anything that can be installed on a server. This guarantees that the software will always run the same, regardless of its environment.

方便开发,把你的应用打包到容器中。——把碎片化的软件放到一个完整的文件系统中,这个系统包括所有的代码、运行环境、系统工具、系统依赖包,即所有安装在一台服务器上的环境。这样,保证了该软件一直能够在同样的环境下进行运行。

简单来说,容器技术提供了跨平台、轻量、稳定的运行软件的统一环境。

安装Docker

这里有详细的介绍:

【1】Ubuntu、Debian 系列安装 Docker(中文)

【2】Install Docker on Linux distributions(官方英文)

1.查看内核:Docker 需要安装在 64 位的 x86 平台或 ARM 平台上(如树莓派),并且要求内核版本不低于 3.10。

uname -a

2.更新包并且添加GPG密钥

sudo apt-get update
sudo apt-get install apt-transport-https ca-certificates
$ sudo apt-key adv \
           --keyserver hkp://ha.pool.sks-keyservers.net:80 \
           --recv-keys 58118E89F3A912897C070ADBF76221572C52609D

3.对于不同版本的ubuntu在/etc/apt/sources.list.d/目录下,新建docker.list文件

vi /etc/apt/sources.list.d/docker.list

添加内容如下:(提示:针对你自己的系统版本进行选择一行)

Ubuntu version        Repository
Precise 12.04 (LTS)    deb https://apt.dockerproject.org/repo ubuntu-precise main
Trusty 14.04 (LTS)    deb https://apt.dockerproject.org/repo ubuntu-trusty main
Wily 15.10            deb https://apt.dockerproject.org/repo ubuntu-wily main
Xenial 16.04 (LTS)    deb https://apt.dockerproject.org/repo ubuntu-xenial main

如:Ubutun 16.04LTS /etc/apt/sources.list.d/docker.list添加如下内容,:wq保存退出。

deb https://apt.dockerproject.org/repo ubuntu-xenial main

4.更新依赖包并安装Docker-engine

sudo apt-get update
sudo apt-get install linux-image-extra-$(uname -r) linux-image-extra-virtual
sudo apt-get install docker-engine

5.启动服务并运行例子docker镜像Hello world.

sudo service docker start
sudo docker run hello-world

这样就大功告成了。

docker加速器

对于中国的用户,国外的镜像不是被墙就是下载很慢,提供大家两个好去处:阿里镜像加速DaoCloud加速

个人试用之后,推荐使用DaoCloud的;PS:如果你的服务器是阿里的,那就使用阿里的吧,毕竟自家的加速还是快点儿,方法在这:docker使用阿里云Docker镜像库加速

DaoCloud注册之后,登陆,选择顶部的加速器:https://www.daocloud.io/mirror,可以看到三个系统下的加速方法。在Linux下的加速方法:

curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://xxxxxxxx.m.daocloud.io

使用DaoCloud的官方脚本进行加速就Ok了,或者手动添加:

vi /etc/default/docker

DOCKER_OPTS="--registry-mirror=http://xxxxxxxx.m.daocloud.io"

保存后,使用service docker restart重启Docker,就可以在国内愉快的Download Docker镜像了。

配置gitlab

国内外有很多很优秀的Docker镜像源。

Docker官方:

https://store.docker.com/(新)

https://hub.docker.com/(旧)

DaoCloud:

https://hub.daocloud.io/

阿里Docker镜像:

https://dev.aliyun.com/search.html

===分割线===

进入正文:

1.下载gitlab的docker镜像并启动:

sameersbn/docker-gitlab

命令:

docker pull sameersbn/gitlab:8.14.0
docker pull sameersbn/postgresql:9.5-3
docker pull sameersbn/redis:latest

启动postgresql数据库:

docker run --name gitlab-postgresql -d \
--env 'DB_NAME=gitlabhq_production' \
--env 'DB_USER=gitlab' --env 'DB_PASS=password' \
--env 'DB_EXTENSION=pg_trgm' \
--volume /srv/docker/gitlab/postgresql:/var/lib/postgresql \
sameersbn/postgresql:9.5-3

启动Redis:

docker run --name gitlab-redis -d \
--volume /srv/docker/gitlab/redis:/var/lib/redis \
sameersbn/redis:latest

启动gitlab服务:

docker run --name gitlab -d \
--link gitlab-postgresql:postgresql --link gitlab-redis:redisio \
--publish 10022:22 --publish 10080:80 \
--env 'GITLAB_PORT=10080' --env 'GITLAB_SSH_PORT=10022' \
--env 'GITLAB_SECRETS_DB_KEY_BASE=long-and-random-alpha-numeric-string' \
--env 'GITLAB_SECRETS_SECRET_KEY_BASE=long-and-random-alpha-numeric-string' \
--env 'GITLAB_SECRETS_OTP_KEY_BASE=long-and-random-alpha-numeric-string' \
--volume /srv/docker/gitlab/gitlab:/home/git/data \
sameersbn/gitlab:8.14.0

上面的命令一大堆,如果是程序员,应该很好懂这些参数的意义:env环境变量,volume相当于把容器内的文件挂载到宿主里面来,就像U盘插到了系统中,link连接容器,让他们通信,publish发布,做一个端口映射。

2.Docker-compose快速启动容器(推荐)

使用方法,下载Docker-compose管理脚本:

curl -L "https://github.com/docker/compose/releases/download/1.8.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

权限赋予:

chmod +x /usr/local/bin/docker-compose

查看:

docker-compose --version
docker-compose version: 1.8.1

PS:或者使用pip安装:

pip install docker-compose

安装gitlab的docker-compose配置文件:

wget https://raw.githubusercontent.com/sameersbn/docker-gitlab/master/docker-compose.yml

需要配置的地方:

(1)配置gitlab的密钥:

https://github.com/sameersbn/docker-gitlab/blob/master/docker-compose.yml#L57-L59

- GITLAB_SECRETS_DB_KEY_BASE=long-and-random-alphanumeric-string
- GITLAB_SECRETS_SECRET_KEY_BASE=long-and-random-alphanumeric-string
- GITLAB_SECRETS_OTP_KEY_BASE=long-and-random-alphanumeric-string

long-and-random-alphanumeric-string配置一长串密钥。

(2)配置Gitlab_host:

https://github.com/sameersbn/docker-gitlab/blob/master/docker-compose.yml#L53

其他的,如端口的映射、数据库密码,大家按需配置。

(3)关于邮件配置:

- SMTP_ENABLED=true
- SMTP_DOMAIN=email-smtp.region-1.amazonaws.com
- SMTP_HOST=email-smtp.region-1.amazonaws.com
- SMTP_PORT=587
- SMTP_USER=IAMmailerKey
- SMTP_PASS=IAMmailerSecret
- SMTP_STARTTLS=true
- SMTP_AUTHENTICATION=login

建议使用AWS,因为mailgun国内已经被墙了。而163,QQ这些公共邮箱,每天都有发件限制。https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/doc/settings/smtp.md

(4)关于时区设置:(选择北京时区)

- TZ=Asia/Beijing
- GITLAB_TIMEZONE=Beijing

(5)关于备份:

- GITLAB_BACKUP_SCHEDULE=daily
- GITLAB_BACKUP_TIME=02:00
- GITLAB_BACKUP_DIR=/home/git/data/backups    

PS:每天2点备份,备份地址:/home/git/data/backups

启动:

docker-compose up -d

容器相关命令

1.使用docker ps查看正在运行的容器

docker ps

CONTAINER ID        IMAGE                        COMMAND                  CREATED             STATUS              PORTS                                                   NAMES
df2be7411e4e        sameersbn/gitlab:8.14.0      "/sbin/entrypoint.sh "   12 minutes ago      Up 12 minutes       443/tcp, 0.0.0.0:10022->22/tcp, 0.0.0.0:10080->80/tcp   mygitlab
fe43f6fd82d6        sameersbn/redis:latest       "/sbin/entrypoint.sh "   5 weeks ago         Up 15 hours         6379/tcp                                                myredis
1fee910ccc15        sameersbn/postgresql:9.5-3   "/sbin/entrypoint.sh"    5 weeks ago         Up 15 hours         5432/tcp                                                mypostgresql

2.使用docker logs <containerId>查看docker日志输出情况

root@ubuntu:/home/liwei# docker logs mygitlab
Initializing logdir...
Initializing datadir...
Updating CA certificates...
Installing configuration templates...
Configuring gitlab...
Configuring gitlab::database
Configuring gitlab::redis
Configuring gitlab::secrets...
Configuring gitlab::sidekiq...
Configuring gitlab::gitlab-workhorse...
Configuring gitlab::unicorn...
Configuring gitlab::timezone...
Configuring gitlab::rack_attack...
Configuring gitlab::ci...
Configuring gitlab::artifacts...
Configuring gitlab::lfs...
Configuring gitlab::project_features...
Configuring gitlab::smtp_settings...
Configuring gitlab::incoming_email...
Configuring gitlab::oauth...
Configuring gitlab::oauth::github...
Configuring gitlab::ldap...
Configuring gitlab::backups...
Configuring gitlab::backups::schedule...
Configuring gitlab::registry...
Configuring gitlab-shell...
Configuring nginx...
Configuring nginx::gitlab...
...

3.使用docker images查看已经下载的docker容器

root@ubuntu:/home/liwei# docker images
REPOSITORY              TAG                 IMAGE ID            CREATED             SIZE
sameersbn/gitlab        8.14.0              3b000ac37c08        21 hours ago        777.1 MB
sameersbn/gitlab        8.13.5              085ba74f4375        2 weeks ago         770.3 MB
sameersbn/gitlab        8.13.1              986efbb1be0f        4 weeks ago         769.7 MB
jenkins                 latest              9bc67dd3e379        5 weeks ago         712 MB
sameersbn/postgresql    9.5-3               5d428ccd0ca8        5 weeks ago         232.5 MB
sameersbn/redis         latest              d98e69c03abe        5 weeks ago         196.5 MB
dordoka/tomcat          latest              79eaa61ac94f        8 weeks ago         779.6 MB
hello-world             latest              c54a2cc56cbb        4 months ago        1.848 kB
busybox                 latest              2b8fd9751c4c        5 months ago        1.093 MB
phpmyadmin/phpmyadmin   latest              8d7d99c9cd5a        5 months ago        57.02 MB

4.使用docker rmi <containerID>删除镜像

root@ubuntu:/home/liwei# docker rmi 085ba74f4375
Untagged: sameersbn/gitlab:8.13.5
Deleted: sha256:085ba74f4375683370a4186c3e78784dd146b04a38f601c5d33c05e9495980a7
Deleted: sha256:8332e8dea2fb01961cb2f4302ea99070d9b41620521e5db5f1cdbbeae6af38d6
Deleted: sha256:3e343fbfe86b82a34a9f4367577d42fcfb2e64f35d247a63ad6ff088d617a5d5
Deleted: sha256:ad22df0171a53e6b5e5174470b8a351c65cf98eb81f775686419de4f5bf3181c
Deleted: sha256:251592c53bb0b387f8f28c9aca2a95f9578d295327a30a1ccde637ab956f7412
Deleted: sha256:0aacd95dcfe0f3e7ea152cc235d52c67eca5a68153a182147b0f0abf953ca69d

gitlab升级、备份恢复

1.升级。

按照https://github.com/sameersbn/docker-gitlab/blob/master/docker-compose.yml修改gitlab的版本、redis版本、postgresql的版本即可。

docker-compose up -d

2.备份恢复:

docker-compose run gitlab app:rake gitlab:backup:restore

root@ubuntu:/home/liwei# docker-compose run gitlab app:rake gitlab:backup:restore
Initializing logdir...
Initializing datadir...
Updating CA certificates...
Installing configuration templates...
Configuring gitlab...
Configuring gitlab::database
Configuring gitlab::redis
Configuring gitlab::secrets...
Configuring gitlab::sidekiq...
Configuring gitlab::gitlab-workhorse...
Configuring gitlab::unicorn...
Configuring gitlab::timezone...
Configuring gitlab::rack_attack...
Configuring gitlab::ci...
Configuring gitlab::artifacts...
Configuring gitlab::lfs...
Configuring gitlab::project_features...
Configuring gitlab::smtp_settings...
Configuring gitlab::incoming_email...
Configuring gitlab::oauth...
Configuring gitlab::oauth::github...
Configuring gitlab::ldap...
Configuring gitlab::backups...
Configuring gitlab::backups::schedule...
Configuring gitlab::registry...
Configuring gitlab-shell...
Configuring nginx...
Configuring nginx::gitlab...

‣ 1480212149_gitlab_backup.tar (created at 27 Nov, 2016 - 02:02:29 Asia)
‣ 1480125698_gitlab_backup.tar (created at 26 Nov, 2016 - 02:01:38 Asia)
‣ 1480039281_gitlab_backup.tar (created at 25 Nov, 2016 - 02:01:21 Asia)
‣ 1479866501_gitlab_backup.tar (created at 23 Nov, 2016 - 02:01:41 Asia)
‣ 1479780085_gitlab_backup.tar (created at 22 Nov, 2016 - 02:01:25 Asia)
‣ 1479693688_gitlab_backup.tar (created at 21 Nov, 2016 - 02:01:28 Asia)

Select a backup to restore: 

选择指定的备份号进行恢复:1480212149_gitlab_backup.tar回车。

3.容器重启:

docker-compose restart
-------------【本文完】一路前行感谢有你【本文完】-------------
0%