Docker安装nexus3

1.搭建环境

• CentOS 7.6
• Docker 19.03.4

2.具体步骤

1. 查找nexus3镜像

docker search nexus3

控制台输出

[root@xxx ~]# docker search nexus3
NAME                                  DESCRIPTION                                     STARS               OFFICIAL            AUTOMATED
sonatype/nexus3                       Sonatype Nexus Repository Manager 3             693                                     
shifudao/nexus3                       clone from nexus3 image but based from openj…   4                                       [OK]
madmuffin/nexus3                      Sonatype Nexus3 Milestone7 docker image         2                                       [OK]
home1oss/nexus3                       An auto configured nexus3                       2                                       [OK]
fxinnovation/nexus3                   Sonatype Nexus 3 in a container                 1                                       [OK]
flavioaiello/nexus3                   Production ready lightweight Nexus3 with API…   1                                       [OK]
cirepo/nexus3                         An auto configured nexus3                       1                                       [OK]
alvindaiyan/nexus3-azure-appservice                                                   1                                       
dwolla/nexus3-crowd                   Nexus3 with nexus3-crowd-plugin installed       0                                       [OK]
joshdvir/nexus3                       nexus3                                          0                                       [OK]
freckleiot/nexus3-oss                 A Sonatype Nexus3 OSS image which makes it e…   0                                       [OK]
sdase/nexus3-base-image               An opinionated nexus3 docker image, based on…   0                                       [OK]
fgbulsoni/nexus3                      My fork of the Sonatype/Nexus3 image, with a…   0                                       
stocksoftware/nexus3                  A nexus3 docker instance                        0                                       [OK]
lokkju/nexus3-github-auth             Sonatype Nexus 3 with Github authentication …   0                                       [OK]
salte/nexus3                          Extends the Sonatype nexus3 Docker image by …   0                                       [OK]
azaa1/nexus3                          Sonyatype Nexus Repository Manager 3            0                                       
desiato/nexus3-ssl                    Sonatype Nexus 3 with SSL/TLS support.          0                                       [OK]
mritd/nexus3                          nexus3                                          0                                       [OK]
jullyannem/nexus3                     Custom image for sonatype/nexus3                0                                       
bigseasre/nexus3                      mirror of the original nexus3 dockerfile        0                                       
darthhater/nexus3                     A series of example Dockerfiles and images f…   0                                       [OK]
nasajon/nexus3                        Nexus3                                          0                                       [OK]
enieuw/nexus3-oss                     nexus3-oss                                      0                                       [OK]
amribrahim00/nexus3                                                                   0  

2. 拉取nexus3镜像

docker pull docker.io/sonatype/nexus3

控制台输出

[root@xxx ~]# docker pull docker.io/sonatype/nexus3
Using default tag: latest
latest: Pulling from sonatype/nexus3
c65691897a4d: Pull complete 
641d7cc5cbc4: Pull complete 
c508b13320cd: Pull complete 
79e3bf9d3132: Pull complete 
Digest: sha256:2c33632ccd1f8c5f9023a3d7f5f541e211831e402219f8c5a83a29d1721457ca
Status: Downloaded newer image for sonatype/nexus3:latest
docker.io/sonatype/nexus3:latest

3. 查看镜像

docker images

控制台输出

[root@xxx ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
sonatype/nexus3     latest              8eb898be2a53        2 weeks ago         611MB

4.运行nexus容器

docker run -id --privileged=true --name=nexus3 --restart=always -p 8081:8081 -v /wandou/nexus3/nexus-data:/var/nexus-data sonatype/nexus3

控制台输出

[root@xxx ~]# docker run -id --privileged=true --name=nexus3 --restart=always -p 8081:8081 -v /wandou/nexus3/nexus-data:/var/nexus-data sonatype/nexus3
980f3759783f3ba7e59302848f816e371b229957f2c12b8f92934d468e061b00

解释：
-id 创建守护式容器
--privileged=true 授予root权限（挂载多级目录必须为true，否则容器访问宿主机权限不足）
--name=名字 给你的容器起个名字
-p 宿主机端口：容器端口映射
-v 宿主机目录：容器目录 目录挂载
这里需要些许时间才能启动并访问nexus 事机器配置而定
5.访问nexus3
请先确保服务器的8081(视上面运行nexus容器时配置的端口而定)端口在安全组里已开启!!!
浏览器访问http://ip:8081

访问

6.登录
进入nexus3页面后右上角有个登录的按钮点击显示登录框

登录

nexus3默认的账号依旧是admin但是密码已经变了具体的密码存储在nexus3的容器的nexus-data路径内的admin.password文件内
具体操作：
1.查看nexus3容器id

docker ps

控制台显示

[root@ecs-s6-xlarge-2-linux-20190927141629 ~]# docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
980f3759783f        sonatype/nexus3     "sh -c ${SONATYPE_DI…"   4 minutes ago       Up 4 minutes        0.0.0.0:8081->8081/tcp   nexus3

记下CONTAINER ID:980f3759783f
2.进入容器控制台

docker exec -it 980f3759783f bash

控制台显示

[root@ecs-s6-xlarge-2-linux-20190927141629 ~]# docker exec -it 980f3759783f bash
bash-4.4$ ls
bin   etc     lib       lost+found  nexus-data  root  srv  uid_entrypoint.sh  var
boot  help.1  lib64     media       opt         run   sys  uid_template.sh
dev   home    licenses  mnt         proc        sbin  tmp  usr

3.进入nexus-data文件夹

bash-4.4$ cd nexus-data/
bash-4.4$ ls
admin.password  db             generated-bundles  karaf.pid  log     restore-from-backup
blobs           elasticsearch  instances          keystores  orient  tmp
cache           etc            javaprefs          lock       port

4.打开admin.password文件

bash-4.4$ vi admin.password 

第一行就是密码啦，复制密码用admin帐号登录，登录以后系统会自动提示你更换admin的密码

本文使用OpenWrite进行编写