主机规划

主机名	IP	用途
server	172.16.32.14	安装docker服务，OA服务
harbor	172.16.32.15	私有仓库，用于存放私有镜像

1.harbor安装（harbor服务器）

1.harbor介绍

Harbor介绍
Docker容器应用的开发和运行离不开可靠的镜像管理，虽然Docker官方也提供了公共的镜像仓库，但是从安全和效率等方面考虑，部署我们私有环境内的Registry也是非常必要的。Harbor是由VMware公司开源的企业级的Docker Registry管理项目，它包括权限管理(RBAC)、LDAP、日志审核、管理界面、自我注册、镜像复制和中文支持等功能。
官网地址：https://github.com/goharbor/harbor

实验环境： 
安装harbor的机器，主机名设置成harbor

机器需要的内存至少要2G

2.为harbor生成自签发证书(可选)

[root@192 ~]# hostnamectl set-hostname harbor && bash
[root@harbor ~]# mkdir /data/ssl -p
[root@harbor ~]# cd /data/ssl/

生成ca证书：
[root@harbor ssl]# openssl genrsa -out ca.key 3072
#生成一个3072位的key，也就是私钥
[root@harbor ssl]# openssl req -new -x509 -days 3650 -key ca.key -out ca.pem
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [XX]:CN # 需要填写
State or Province Name (full name) []:YunNan # 需要填写
Locality Name (eg, city) [Default City]:KunMing # 需要填写
Organization Name (eg, company) [Default Company Ltd]:
Organizational Unit Name (eg, section) []:
Common Name (eg, your name or your server's hostname) []:
Email Address []:
#生成一个数字证书ca.pem，3650表示证书的有效时间是3年

# 生成域名的证书：
[root@harbor ssl]# openssl genrsa -out harbor.key  3072
#生成一个3072位的key，也就是私钥
[root@harbor ssl]# openssl req -new -key harbor.key -out harbor.csr
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [XX]:CN	# 需要填写
State or Province Name (full name) []:YunNan	# 需要填写
Locality Name (eg, city) [Default City]:KunMing # 需要填写
Organization Name (eg, company) [Default Company Ltd]:
Organizational Unit Name (eg, section) []:
Common Name (eg, your name or your server's hostname) []:harbor # 需要填写
Email Address []:
Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:         
An optional company name []:

# 签发证书
[root@harbor ssl]# openssl x509 -req -in harbor.csr -CA ca.pem -CAkey ca.key -CAcreateserial -out harbor.pem -days 3650
Signature ok
subject=/C=CN/ST=YunNan/L=KunMing/O=Default Company Ltd/CN=harbor
Getting CA Private Key

[root@harbor ssl]# ls
ca.key  ca.pem  ca.srl  harbor.csr  harbor.key  harbor.pem

3.安装Harbor

1.防火墙策略及selinux关闭
# 关闭防火墙
[root@ harbor~]# systemctl stop firewalld && systemctl disable firewalld
# 关闭iptables防火墙
[root@ harbor~]# yum install iptables-services -y  #安装iptables
# 禁用iptables
root@ harbor~]# service iptables stop   && systemctl disable iptables
# 清空防火墙规则
[root@ harbor~]# iptables -F 
# 关闭selinux
[root@ harbor~]# setenforce 0
[root@harbor~]# sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config
# 注意：修改selinux配置文件之后，重启机器，selinux才能永久生效

2.时间服务器安装及时间同步
#配置时间同步
[root@harbor~]# yum install -y ntp ntpdate
[root@xianchaomaster1 ~]# ntpdate cn.pool.ntp.org 
#编写计划任务
[root@harbor~]# crontab -e 
* */1 * * * /usr/sbin/ntpdate   cn.pool.ntp.org
# 重启crond服务使配置生效：
[root@xianchaomaster1 ~]# systemctl restart crond

3.安装docker-ce
# 安装基础软件包
[root@ harbor~]# yum install -y  wget net-tools nfs-utils lrzsz gcc gcc-c++ make cmake libxml2-devel openssl-devel curl curl-devel unzip sudo ntp libaio-devel wget vim ncurses-devel autoconf automake zlib-devel  python-devel epel-release openssh-server socat  ipvsadm conntrack 
# 配置docker-ce国内yum源（阿里云）
[root@ harbor~]# yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
# 安装docker依赖包
[root@ harbor~]# yum install -y yum-utils device-mapper-persistent-data lvm2
# 安装docker-ce
[root@ harbor~]# yum install docker-ce -y
# 启动docker服务
[root@ harbor~]# systemctl start docker && systemctl enable docker
# 查看docker运行状态
[root@harbor ~]# systemctl status docker
# 查看Docker 版本信息
[root@ harbor~]# docker version    

4.内核参数修改
# 开启包转发功能和修改内核参数
内核参数修改：br_netfilter模块用于将桥接流量转发至iptables链，br_netfilter内核参数需要开启转发。
[root@ harbor~]# modprobe br_netfilter
[root@ harbor~]# cat > /etc/sysctl.d/docker.conf <<EOF
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
EOF
# 重新加载配置文件
[root@harbor ~]# sysctl -p /etc/sysctl.d/docker.conf
#重启docker
[root@harbor ~]# systemctl restart docker
# 配置镜像加速器--阿里云镜像加速器地址可登录阿里云-容器镜像服务-镜像工具-镜像加速器获取
[root@docker ~]# vim /etc/docker/daemon.json
{
  "registry-mirrors":["https://axcmsqgw.mirror.aliyun.com","https://registry.docker-cn.com","https://docker.mirrors.ustc.edu.cn","https://dockerhub.azk8s.cn","http://hub-mirror.c.163.com"],
  "insecure-registries": ["172.16.32.15"]
}

# 重新加载配置文件，重启docker
[root@harbor ~]# systemctl daemon-reload && systemctl restart docker

5.安装harbor
# 创建安装目录
[root@harbor ~]# mkdir -p /data/install
[root@harbor ~]# cd /data/install/
# 把harbor的离线包harbor-offline-installer-v2.3.0-rc3.tgz上传到该目录
# 下载harbor离线包的地址：https://github.com/goharbor/harbor/releases/download/v2.3.0-rc3/harbor-offline-installer-v2.3.0-rc3.tgz
# 解压并修改配置文件：
[root@harbor install]# tar -zxvf harbor-offline-installer-v2.3.0-rc3.tgz
[root@harbor install]# cd harbor
[root@harbor harbor]# cp harbor.yml.tmpl harbor.yml 
[root@harbor harbor]# vim harbor.yml
# 修改配置位置配置：
hostname:  harbor  
#修改hostname，跟上面签发的证书域名保持一致
若执行了第二步，则需修改证书文件地址
#协议用https
# certificate: /data/ssl/harbor.pem
# private_key: /data/ssl/harbor.key

# 安装docker-compose
# 上传docker-compose-Linux-x86_64文件到harbor机器
# 下载地址：https://github.com/docker/compose/releases/download/v2.20.3/docker-compose-linux-x86_64
[root@harbor harbor]# mv docker-compose-Linux-x86_64 /usr/bin/docker-compose
[root@harbor harbor]# chmod +x /usr/bin/docker-compose
# 注： docker-compose项目是Docker官方的开源项目，负责实现对Docker容器集群的快速编排。Docker-Compose的工程配置文件默认为docker-compose.yml，Docker-Compose运行目录下的必要有一个docker-compose.yml。docker-compose可以管理多个docker实例。
[root@harbor install]# cd /data/install/harbor
[root@harbor harbor]# ./install.sh
看到下面内容，说明安装成功：
Harbor has been installed and started successfully.

# 注：harbor默认的账号密码：admin/Harbor12345

# 扩展：
# 如何停掉harbor：
[root@harbor harbor]# cd /data/install/harbor
[root@harbor harbor]# docker-compose stop 
# 如何启动harbor：
[root@harbor harbor]# cd /data/install/harbor
[root@harbor harbor]# docker-compose start

4.Harbor使用

访问地址：http://172.16.32.15/

创建项目、用户（将用户设置为管理员）、并将用户添加进项目中

2.宿主机docker安装（server服务器）

1. 设置主机名

# 主机名设置
[root@192 ~]# hostnamectl set-hostname server && bash

2. 安装需要的软件包

yum-util 提供yum-config-manager功能，另外两个是devicemapper驱动依赖的

# 依赖安装
[root@server ~]# yum install -y yum-utils 
[root@server ~]# yum install -y device-mapper-persistent-data lvm2

3. 设置yum源

# 配置docker-yum源
[root@server ~]# yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

[root@server ~]# yum clean all
[root@server ~]# yum makecache

4. 查看docker版本

所有仓库中所有docker版本，并选择特定版本安装

# 查询是否存在对应版本
[root@server ~]# yum provides docker-ce docker-ce-cli | grep 20.10.14
# 或
[root@server ~]# yum list docker-ce --showduplicates | sort -r

卸载

[root@server ~]#  yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine

5. 安装Docker

命令：yum install docker-ce-版本号，我选的是20.10.14.ce

# 安装指定版本
[root@server ~]# yum -y install  docker-ce-20.10.14 docker-ce-cli-20.10.14 containerd.io

# 已经安装的情况下降级安装：
[root@server ~]# yum downgrade --setopt=obsoletes=0 -y docker-ce-19.03.5 docker-ce-cli-19.03.5 containerd.io

#不带版本安装，默认为最新
[root@server ~]# yum install docker

6. 启动Docker

命令：systemctl start docker，然后加入开机启动

[root@server ~]# systemctl start docker
[root@server ~]# systemctl enable docker

7. 验证安装是否成功

有client和service两部分表示docker安装启动都成功了

[root@server ~]# docker version 
Client: Docker Engine - Community
 Version:           20.10.14
 API version:       1.41
 Go version:        go1.16.15
 Git commit:        a224086
 Built:             Thu Mar 24 01:49:57 2022
 OS/Arch:           linux/amd64
 Context:           default
 Experimental:      true
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

[root@server ~]# docker -v
Docker version 20.10.14, build a224086

3.宿主机镜像操作（server服务器）

1. 拉取基础镜像

#指定版本拉取
[root@server ~]# docker pull centos:7.9.2009
7.9.2009: Pulling from library/centos
2d473b07cdd5: Pull complete 
Digest: sha256:be65f488b7764ad3638f236b7b515b3678369a5124c47b8d32916d6487418ea4
Status: Downloaded newer image for centos:7.9.2009
docker.io/library/centos:7.9.2009

# 不指定版本拉取
[root@server ~]# docker pull nginx

# 查看拉取的镜像
[root@server ~]# docker images
REPOSITORY   TAG        IMAGE ID       CREATED        SIZE
nginx        latest     2ac752d7aeb1   34 hours ago   188MB
centos       7.9.2009   eeb6ee3f44bd   2 years ago    204MB

2. 启动基础镜像

# 启动镜像
[root@server ~]# docker run --name centos -itd centos:7.9.2009 /bin/bash
614dfb6b3eaf453a9a1106e4b665fc0d4105a6eb8f237d5f01df2c7cb09094f4
# 显示的结果为容器ID

3. 进入基础镜像

[root@server ~]# docker exec -it 容器ID /bin/bash
[root@4665ba0cf761 /]# 
# 进入之后，显示主机名为容器ID前几位

4. 查询可用的JDK版本

[root@4665ba0cf761 /]# yum search java | grep jdk

5. 根据查询的镜像进行JDK安装

#这里用java-1.8.0-openjdk.x86_64
[root@4665ba0cf761 /]# yum -y install java-1.8.0-openjdk.x86_64

6. 测试jdk是否安装成功

[root@4665ba0cf761 /]# java -version
openjdk version "1.8.0_362"
OpenJDK Runtime Environment (build 1.8.0_362-b08)
OpenJDK 64-Bit Server VM (build 25.362-b08, mixed mode)

7. 退出镜像并生成新镜像

[root@4665ba0cf761 /]# exit

[root@server ~]# docker commit 4665ba0cf761 centos:7.9.2009.1
sha256:fdbe61a544353ac49f403e040c7e0d623b5e7d3d8e6ac5e29b24e6858091c99b
-- 4665ba0cf761 容器ID

8. 验证镜像情况

[root@server ~]# docker images 
REPOSITORY   TAG          IMAGE ID       CREATED          SIZE
centos       7.9.2009.1   fdbe61a54435   18 seconds ago   606MB
centos       7.9.2009     eeb6ee3f44bd   18 months ago    204MB

4.宿主机使用harbor（server服务器）

1.宿主机如何使用harbor

# 1.在docker服务器上，修改配置文件daemon.json
[root@docker ~]# cat /etc/docker/daemon.json 
{
  "registry-mirrors":["https://axcmsqgw.mirror.aliyun.com","https://registry.docker-cn.com","https://docker.mirrors.ustc.edu.cn","https://dockerhub.azk8s.cn","http://hub-mirror.c.163.com"],
  "insecure-registries": ["172.16.32.15","harbor"]
}
# "insecure-registries": ["172.16.32.15","harbor"]中配置的信息为harbor的服务器IP和主机名

# 2.使配置生效
[root@docker ~]# systemctl daemon-reload && systemctl restart docker

# 3.配置本地域名解析
[root@server ~]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
172.16.32.15 harbor

# 4.使用docker login登入私有仓库
[root@server ~]# docker login 172.16.32.15
# 输入用户和密码，显示Login Succeeded表示登录成功

2.上传镜像到私有仓库

[root@docker ~]# docker login 172.16.32.15
#把tomcat镜像打标签
[root@docker ~]# docker tag centos:7.9.2009.1 172.16.32.15/cs/centos:7.9.2009.1
# 把容器上传进私有仓库
[root@docker ~]# docker push 172.16.32.15/cs/centos:7.9.2009.1

3.从私有仓库拉取镜像

[root@docker ~]# docker login 172.16.32.15
# 从私有仓库拉取镜像
# 将本地
[root@docker ~]# docker pull 172.16.32.15/cs/centos:7.9.2009.1