ansible安装01

安装前先挂载数据盘（使用的阿里云ECS，系统里面挂载两块磁盘，一块系统盘一块数据盘）我们是安装软件在系统盘，应用全部在数据盘。

磁盘格式化

[root@iZ2ze8pbai447ra1ktofymZ ~]# fdisk -l

Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x0000974b

   Device Boot      Start         End      Blocks   Id  System
/dev/vda1   *        2048    83886046    41941999+  83  Linux

Disk /dev/vdb: 107.4 GB, 107374182400 bytes, 209715200 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

磁盘分区，直接分一个区

[root@iZ2ze8pbai447ra1ktofymZ ~]# fdisk -l

Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x0000974b

   Device Boot      Start         End      Blocks   Id  System
/dev/vda1   *        2048    83886046    41941999+  83  Linux

Disk /dev/vdb: 107.4 GB, 107374182400 bytes, 209715200 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

[root@iZ2ze8pbai447ra1ktofymZ ~]#  fdisk /dev/vdb
Welcome to fdisk (util-linux 2.23.2).

Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0x619faf48.

Command (m for help): n
Partition type:
   p   primary (0 primary, 0 extended, 4 free)
   e   extended
Select (default p): p
Partition number (1-4, default 1): 1
First sector (2048-209715199, default 2048): 
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-209715199, default 209715199): 
Using default value 209715199
Partition 1 of type Linux and of size 100 GiB is set

Command (m for help): wq
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.

格式化

[root@iZ2ze8pbai447ra1ktofymZ ~]# mkfs.ext4 /dev/vdb1
mke2fs 1.42.9 (28-Dec-2013)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
6553600 inodes, 26214144 blocks
1310707 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2174746624
800 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks: 
	32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 
	4096000, 7962624, 11239424, 20480000, 23887872

Allocating group tables: done                            
Writing inode tables: done                            
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

磁盘挂载，在/home目录下

[root@iZ2ze8pbai447ra1ktofymZ ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
devtmpfs        3.8G     0  3.8G   0% /dev
tmpfs           3.8G     0  3.8G   0% /dev/shm
tmpfs           3.8G  440K  3.8G   1% /run
tmpfs           3.8G     0  3.8G   0% /sys/fs/cgroup
/dev/vda1        40G  2.1G   36G   6% /
tmpfs           768M     0  768M   0% /run/user/0
[root@iZ2ze8pbai447ra1ktofymZ ~]# echo /dev/vdb1 /home ext4 defaults 0 0 >> /etc/fstab

重启服务器验证

[root@iZ2ze8pbai447ra1ktofymZ ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
devtmpfs        3.8G     0  3.8G   0% /dev
tmpfs           3.8G     0  3.8G   0% /dev/shm
tmpfs           3.8G  444K  3.8G   1% /run
tmpfs           3.8G     0  3.8G   0% /sys/fs/cgroup
/dev/vda1        40G  2.1G   36G   6% /
/dev/vdb1        99G   61M   94G   1% /home
tmpfs           768M     0  768M   0% /run/user/0

创建普通用户

[root@iZ2zee6df2m25shq6mfaw5Z ~]# useradd xiaoxin

[root@iZ2zee6df2m25shq6mfaw5Z ~]# visudo
xiaoxin ALL=(ALL)       NOPASSWD: ALL

[root@iZ2zee6df2m25shq6mfaw5Z ~]# su - xiaoxin
[xiaoxin@iZ2zee6df2m25shq6mfaw5Z ~]$
[xiaoxin@iZ2zee6df2m25shq6mfaw5Z ~]$ sudo yum install -y epel-release
[xiaoxin@iZ2zee6df2m25shq6mfaw5Z ~]$ sudo yum install -y ansible