minio分布式集群的详细搭建

一、基础环境

操作系统：CentOS 7.3

Minio下载  

将下载好的minio移动到 /opt/minio/文件夹下 或 者进入到/opt/minio/文件夹下使用下面的命令下载：

wget https://dl.minio.io/server/minio/release/linux-amd64/minio

二、准备工作

2.1、机器资源

192.168.129.133  挂载磁盘路径：/data/minio_data

192.168.129.135  挂载磁盘路径：/data/minio_data

192.168.129.136  挂载磁盘路径：/data/minio_data

192.168.129.137  挂载磁盘路径：/data/minio_data

生产环境强烈建议至少四台机器，这也是官方的建议要求，这样的话就可以做到挂掉一台机器集群依然可以读写，挂掉两台机器集群依然可读，本文仅以四台机器为例子说明如何搭建集群   

2.2、创建相关目录（所有节点，上面四台机器都创建相同路径的文件夹）

[root@localhost /]# mkdir /data/minio_data/

注意：需要将新建的目录挂在到对应的磁盘下,磁盘不挂载好，集群启动会报错：找不到磁盘,如下：

[root@localhost /]# df -h
Filesystem               Size  Used Avail Use% Mounted on
devtmpfs                 475M     0  475M   0% /dev
tmpfs                    487M     0  487M   0% /dev/shm
tmpfs                    487M  7.7M  479M   2% /run
tmpfs                    487M     0  487M   0% /sys/fs/cgroup
/dev/mapper/centos-root   17G  7.4G  9.6G  44% /
/dev/sda1               1014M  137M  878M  14% /boot
tmpfs                     98M     0   98M   0% /run/user/0
[root@localhost /]# mount /dev/sda1 /data/minio_data/
mount: /dev/sda1 is already mounted or /data/minio_data busy
       /dev/sda1 is already mounted on /boot
       /dev/sda1 is already mounted on /data/minio_data
[root@localhost /]# lsblk
NAME            MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda               8:0    0   20G  0 disk 
├─sda1            8:1    0    1G  0 part /data/minio_data
└─sda2            8:2    0   19G  0 part 
  ├─centos-root 253:0    0   17G  0 lvm  /
  └─centos-swap 253:1    0    2G  0 lvm  [SWAP]
sr0              11:0    1  4.4G  0 rom  
[root@localhost /]#

 

创建启动脚本目录

[root@localhost /]# mkdir /opt/minio/

三、编写集群启动脚本（所有节点配置文件相同）

脚本如下：

[root@localhost /]# vim /opt/minio/run.sh 

#!/bin/bash
export MINIO_ACCESS_KEY=Xxyminio
export MINIO_SECRET_KEY=Test123456

/opt/minio/minio server \
http://192.168.129.133/data/minio_data/data1 http://192.168.129.135/data/minio_data/data1 \
http://192.168.129.136/data/minio_data/data1 http://192.168.129.137/data/minio_data/data1

其中，“MINIO_ACCESS_KEY”为用户名，“MINIO_SECRET_KEY”为密码，密码不能设置过于简单，不然minio会启动失败

创建好的/opt/minio/目录下的结构如下图：

四、编写服务脚本（所有节点）

[root@localhost minio]# vim /usr/lib/systemd/system/minio.service 

[Unit]
Description=Minio service
Documentation=https://docs.minio.io/

[Service]
WorkingDirectory=/opt/minio/
ExecStart=/opt/minio/run.sh

Restart=on-failure
RestartSec=5

[Install]
WantedBy=multi-user.target

其中，“WorkingDirectory”为启动脚本目录，“ExecStart”为指定集群启动脚本

五、启动测试

5.1、将下载好的minio文件赋予权限

[root@localhost minio]# chmod +x /opt/minio/minio

5.2、赋予启动脚本文件权限

[root@localhost minio]# chmod +x /opt/minio/run.sh

5.3、依次启动每个服务器的minio

[root@localhost minio]# systemctl daemon-reload
[root@localhost minio]# 
[root@localhost minio]# systemctl start minio
[root@localhost minio]# 
[root@localhost minio]# systemctl status minio
● minio.service - Minio service
   Loaded: loaded (/usr/lib/systemd/system/minio.service; disabled; vendor preset: disabled)
   Active: active (running) since Wed 2020-04-22 10:32:54 CST; 44s ago
     Docs: https://docs.minio.io/
 Main PID: 1569 (run.sh)
   CGroup: /system.slice/minio.service
           ├─1569 /bin/bash /opt/minio/run.sh
           └─1570 /opt/minio/minio server http://192.168.129.133/data/minio_data/data1 http://192.168.129.135/data/minio_data/data1 http://192....

Apr 22 10:32:54 localhost.localdomain systemd[1]: Started Minio service.
Apr 22 10:33:17 localhost.localdomain run.sh[1569]: Waiting for a minimum of 2 disks to come online (elapsed 18s)
Apr 22 10:33:20 localhost.localdomain run.sh[1569]: Waiting for a minimum of 2 disks to come online (elapsed 21s)
Apr 22 10:33:23 localhost.localdomain run.sh[1569]: Waiting for a minimum of 2 disks to come online (elapsed 24s)
Apr 22 10:33:26 localhost.localdomain run.sh[1569]: Waiting for a minimum of 2 disks to come online (elapsed 27s)
Apr 22 10:33:29 localhost.localdomain run.sh[1569]: Waiting for a minimum of 2 disks to come online (elapsed 30s)
Apr 22 10:33:32 localhost.localdomain run.sh[1569]: Waiting for a minimum of 2 disks to come online (elapsed 33s)
Apr 22 10:33:35 localhost.localdomain run.sh[1569]: Waiting for a minimum of 2 disks to come online (elapsed 36s)
Apr 22 10:33:38 localhost.localdomain run.sh[1569]: Waiting for a minimum of 2 disks to come online (elapsed 39s)
[root@localhost minio]# 

 

5.4、测试

浏览器输入集群任意节点地址+9000端口，即可访问minio，用户名密码为前面设置的“MINIO_ACCESS_KEY”和“MINIO_SECRET_KEY”，可创建“bucket”并上传文件测试