自动化管理工具Saltstack之Salt-api篇(16)

salt-api所有操作均在master端

一、安装salt-api

yum -y install salt-api pyOpenSSL
chkconfig salt-api on

二、配置salt-api

修改/etc/salt/master文件

sed -i '/#default_include/s/#default/default/g' /etc/salt/master
mkdir /etc/salt/master.d

创建用于salt-api的用户

useradd -M -s /sbin/nologin hyxc
echo '123456aa' | passwd hyxc --stdin

新增配置文件/etc/salt/master.d/api.conf

cat /etc/salt/master.d/api.conf
rest_cherrypy:
  port: 8000
  ssl_crt: /etc/pki/tls/certs/localhost.crt
  ssl_key: /etc/pki/tls/certs/localhost.key

新增配置文件/etc/salt/master.d/eauth.conf

cat /etc/salt/master.d/eauth.conf
external_auth:
  pam:
    hyxc:
      - .*

生成自签名证书

salt-call tls.create_self_signed_cert

重启salt-master

service salt-master restart

启动salt-api

service salt-api start

三、Salt-api的使用

使用curl 获取token

curl -k https://192.168.90.62:8000/login -H "Accept: application/x-yaml"  -d username='hyxc' -d password='123456aa'  -d eauth='pam'
return:
- eauth: pam
  expire: 1455557750.5028951
  perms:
  - .*
  start: 1455514550.5028939
  token: ca1e83b9ca3817d8333bd4054892bf3ac1b90b73
  user: hyxc

获取token后就可以使用token通信

注：重启salt-api后token改变

1.测试minion端的联通性

下面功能类似于“salt '*' test.ping”

curl -k https://192.168.90.62:8000 -H "Accept: application/x-yaml" -H "X-Auth-Token: ca1e83b9ca3817d8333bd4054892bf3ac1b90b73" -d client='local' -d tgt='*' -d fun='test.ping'
return:
- 192.168.90.63: true

2.执行远程命令

下面功能类似于“salt '*' cmd.run ifconfig”

curl -k https://192.168.90.62:8000 -H "Accept: application/x-yaml" -H "X-Auth-Token: ca1e83b9ca3817d8333bd4054892bf3ac1b90b73" -d client='local' -d tgt='*' -d fun='cmd.run' -d arg='ifconfig'
return:
- 192.168.90.63: "eth2      Link encap:Ethernet  HWaddr 00:50:56:B5:5C:28  \n    \
    \      inet addr:192.168.90.63  Bcast:192.168.90.255  Mask:255.255.255.0\n   \
    \       inet6 addr: fe80::250:56ff:feb5:5c28/64 Scope:Link\n          UP BROADCAST\
    \ RUNNING MULTICAST  MTU:1500  Metric:1\n          RX packets:824916 errors:0\
    \ dropped:0 overruns:0 frame:0\n          TX packets:434238 errors:0 dropped:0\
    \ overruns:0 carrier:0\n          collisions:0 txqueuelen:1000 \n          RX\
    \ bytes:60340602 (57.5 MiB)  TX bytes:27042908 (25.7 MiB)\n\nlo        Link encap:Local\
    \ Loopback  \n          inet addr:127.0.0.1  Mask:255.0.0.0\n          inet6 addr:\
    \ ::1/128 Scope:Host\n          UP LOOPBACK RUNNING  MTU:16436  Metric:1\n   \
    \       RX packets:808 errors:0 dropped:0 overruns:0 frame:0\n          TX packets:808\
    \ errors:0 dropped:0 overruns:0 carrier:0\n          collisions:0 txqueuelen:0\
    \ \n          RX bytes:59931 (58.5 KiB)  TX bytes:59931 (58.5 KiB)"

3.使用state.sls

下面功能类似于“salt '*' state.sls ifconfig”

curl -k https://192.168.90.62:8000 -H "Accept: application/x-yaml" -H "X-Auth-Token: ca1e83b9ca3817d8333bd4054892bf3ac1b90b73" -d client='local' -d tgt='*' -d fun='state.sls' -d arg='ifconfig'
return:
- 192.168.90.63:
    cmd_|-ifconfig_|-ifconfig_|-run:
      __run_num__: 0
      changes:
        pid: 30954
        retcode: 0
        stderr: ''
        stdout: "eth2      Link encap:Ethernet  HWaddr 00:50:56:B5:5C:28  \n     \
          \     inet addr:192.168.90.63  Bcast:192.168.90.255  Mask:255.255.255.0\n\
          \          inet6 addr: fe80::250:56ff:feb5:5c28/64 Scope:Link\n        \
          \  UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1\n          RX packets:825051\
          \ errors:0 dropped:0 overruns:0 frame:0\n          TX packets:434351 errors:0\
          \ dropped:0 overruns:0 carrier:0\n          collisions:0 txqueuelen:1000\
          \ \n          RX bytes:60353823 (57.5 MiB)  TX bytes:27062672 (25.8 MiB)\n\
          \nlo        Link encap:Local Loopback  \n          inet addr:127.0.0.1 \
          \ Mask:255.0.0.0\n          inet6 addr: ::1/128 Scope:Host\n          UP\
          \ LOOPBACK RUNNING  MTU:16436  Metric:1\n          RX packets:808 errors:0\
          \ dropped:0 overruns:0 frame:0\n          TX packets:808 errors:0 dropped:0\
          \ overruns:0 carrier:0\n          collisions:0 txqueuelen:0 \n         \
          \ RX bytes:59931 (58.5 KiB)  TX bytes:59931 (58.5 KiB)"
      comment: Command "ifconfig" run
      duration: 11.991
      name: ifconfig
      result: true
      start_time: '13:59:06.334112'

4.使用Targeting

下面功能类似于“salt -L '192.168.90.61,192.168.90.63' test.ping”

curl -k https://192.168.90.62:8000 -H "Accept: application/x-yaml" -H "X-Auth-Token: 8f0ced127b052abddccac723a990c0015cdce33a" -d client='local' -d tgt='192.168.90.61,192.168.90.63'  -d expr_form='list'  -d fun='test.ping'
return:
- 192.168.90.61: true
  192.168.90.63: true

下面功能类似于“salt -N test2 test.ping”

curl -k https://192.168.90.62:8000 -H "Accept: application/x-yaml" -H "X-Auth-Token: 8f0ced127b052abddccac723a990c0015cdce33a" -d client='local' -d tgt='test2'  -d expr_form='nodegroup'  -d fun='test.ping'
return:
- 192.168.90.61: true
  192.168.90.63: true

5.以json格式输出

curl -k https://192.168.90.62:8000 -H "Accept: application/json" -H "X-Auth-Token: 8f0ced127b052abddccac723a990c0015cdce33a" -d client='local' -d tgt='*.63' -d fun='cmd.run' -d arg='ifconfig'
{"return": [{"192.168.90.63": "eth2      Link encap:Ethernet  HWaddr 00:50:56:B5:5C:28  \n          inet addr:192.168.90.63  Bcast:192.168.90.255  Mask:255.255.255.0\n          inet6 addr: fe80::250:56ff:feb5:5c28/64 Scope:Link\n          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1\n          RX packets:826940 errors:0 dropped:0 overruns:0 frame:0\n          TX packets:435580 errors:0 dropped:0 overruns:0 carrier:0\n          collisions:0 txqueuelen:1000 \n          RX bytes:60495607 (57.6 MiB)  TX bytes:27156010 (25.8 MiB)\n\nlo        Link encap:Local Loopback  \n          inet addr:127.0.0.1  Mask:255.0.0.0\n          inet6 addr: ::1/128 Scope:Host\n          UP LOOPBACK RUNNING  MTU:16436  Metric:1\n          RX packets:808 errors:0 dropped:0 overruns:0 frame:0\n          TX packets:808 errors:0 dropped:0 overruns:0 carrier:0\n          collisions:0 txqueuelen:0 \n          RX bytes:59931 (58.5 KiB)  TX bytes:59931 (58.5 KiB)"}]}

问题1：在执行“service salt-api stop”后再执行“service salt-api start”启动服务失败，或执行“service salt-apirestart”时，启动服务也有出现失败现象

解决办法：salt-api每次启动默认开启两个进程，执行“service salt-api stop”后每次只能杀死一个进程，造成服务再次启动失败。修改/etc/init.d/salt-api中stop函数如下(也可自己重写此脚本，这里是省事，直接改原脚本)

vim /etc/init.d/salt-api
stop() {
    echo -n $"Stopping salt-api daemon: "
    if [ -f $SUSE_RELEASE ]; then
        killproc -TERM $SALTAPI
        rc_status -v
    elif [ -f $DEBIAN_VERSION ]; then
        # Added this since Debian's start-stop-daemon doesn't support spawned processes
        if ps -ef | grep "$PYTHON $SALTAPI" | grep -v grep | awk '{print $2}' | xargs kill &> /dev/null; then
            echo -n "OK"
            RETVAL=0
        else
            echo -n "Daemon is not started"
            RETVAL=1
        fi
    else
        killproc $PROCESS && killproc $PROCESS
    fi
    RETVAL=$?
    echo
    return $RETVAL
}