什么情况下才使用salt-ssh，有一些比较老的红帽服务器，也有一些不方便安装salt-minion客户端。总会有一些服务器比较难安装上salt-minion的。

好了，下面来说说简单配置

默认使用roster配置文件

vim /etc/salt/roster

# Sample salt-ssh config file
#web1:
#  host: 192.168.42.1 # The IP addr or DNS hostname
#  user: fred         # Remote executions will be executed as user fred
#  passwd: foobarbaz  # The password to use for login, if omitted, keys are used
#  sudo: True         # Whether to sudo to root, not enabled by default
#web2:
#  host: 192.168.42.2
hdd:                              //ID名字可以随便定义host: 10.0.0.221user: hddpasswd: 66666sudo: Ture

已经完成配置！下面直接使用salt-ssh

第一次运行没有添加-i，未能如期运行。

root@salt-master ~]# salt-ssh "*" -r 'free -m'
hdd:----------retcode:254stderr:stdout:The host key needs to be accepted, to auto accept run salt-ssh with the -i flag:The authenticity of host '10.0.0.221 (10.0.0.221)' can't be established.ECDSA key fingerprint is b9:36:f5:d8:3a:88:94:93:43:78:8e:cb:43:78:8e:cb.Are you sure you want to continue connecting (yes/no)?
[root@salt-master ~]#

添加-i参数继续执行命令

[root@salt-master ~]# salt-ssh "*" -r 'free -m' -i
hdd:----------retcode:0stderr:Warning: Permanently added '10.0.0.221' (ECDSA) to the list of known hosts.stdout:hdd@10.0.0.221's password: total       used       free     shared    buffers     cachedMem:          7856       6698       1157         18        317       4298-/+ buffers/cache:       2082       5773Swap:         8061          0       8061
[root@salt-master ~]#
[root@salt-master ~]# salt-ssh "hdd" -r 'df -h'
hdd:----------retcode:0stderr:stdout:Filesystem      Size  Used Avail Use% Mounted onudev            3.9G  4.0K  3.9G   1% /devtmpfs           786M  1.5M  785M   1% /run/dev/sda1       910G  454G  410G  53% /none            4.0K     0  4.0K   0% /sys/fs/cgroupnone            5.0M     0  5.0M   0% /run/locknone            3.9G   84K  3.9G   1% /run/shmnone            100M   12K  100M   1% /run/user

但是我有一个问题，保存的密钥放在哪里呢？暂时我未有发现。