运维自动化之ansible playbook安装node环境

现在介绍如何使用ansible安装node。下面是安装node的信息：

node_dir: /data
node_version: 0.10.21
node_port: 3301

可以看到node的版本是0.10.21，测试的node应用服务监听3301端口备注：此playbook仅能对centos或者redhat的6.x版本进行安装。
下面是安装node的playbook结构

09:33:16 # tree node_*
node_delete
├── files
├── handlers
├── meta
│   └── main.yml
├── tasks
│   ├── delete.yml
│   └── main.yml
├── templates
└── vars
└── main.yml
node_install
├── files
│   └── node-0.10.21.tar.gz
├── handlers
├── meta
│   └── main.yml
├── tasks
│   ├── copy.yml
│   ├── delete.yml
│   └── main.yml
├── templates
│   └── app.js
└── vars
└── main.yml

12 directories, 11 files

playbook安装node的是

09:32:54 # cat node_install.yml
---
- hosts: "{{host}}"
remote_user: "{{user}}"
gather_facts: True
roles:
- common
- node_install

playbook删除node的是

09:34:18 # cat node_delete.yml
---
- hosts: "{{host}}"
remote_user: "{{user}}"
gather_facts: True
roles:
- node_delete

下面是安装与测试过程

1、安装node环境

09:42:34 # time ansible-playbook node_install.yml --extra-vars "host=172.17.0.3 user=root" -k
SSH password:

PLAY [172.17.0.3] *************************************************************

GATHERING FACTS ***************************************************************
ok: [172.17.0.3]

TASK: [common | Install initializtion require software] ***********************
changed: [172.17.0.3]

TASK: [node_install | Copy Node Software To Redhat Client] ********************
changed: [172.17.0.3]

TASK: [node_install | Create Node Install Dir] ********************************
ok: [172.17.0.3]

TASK: [node_install | Uncompression Node Software To Redhat Client] ***********
changed: [172.17.0.3]

TASK: [node_install | Mkdir Soft Link To Redhat Client] ***********************
changed: [172.17.0.3] => (item=npm)
changed: [172.17.0.3] => (item=node)
changed: [172.17.0.3] => (item=forever)

TASK: [node_install | Copy Node Test Config To Redhat Client] *****************
changed: [172.17.0.3]

TASK: [node_install | Start Node Start App In Redhat Client] ******************
changed: [172.17.0.3]

TASK: [node_install | Delete Node compression Software In Redhat Client] ******
changed: [172.17.0.3]

PLAY RECAP ********************************************************************
172.17.0.3                 : ok=9    changed=7    unreachable=0    failed=0

real	0m17.806s
user	0m5.550s
sys	0m0.550s

2、安装后测试

09:44:15 # ssh 172.17.0.3
root@172.17.0.3's password:
Last login: Mon Aug  4 09:41:15 2014 from 172.17.42.1
root@b9a9e6f2caed:~
09:44:49 # ifconfig
eth0      Link encap:Ethernet  HWaddr 22:26:1C:DD:5A:1D
inet addr:172.17.0.3  Bcast:0.0.0.0  Mask:255.255.0.0
inet6 addr: fe80::2026:1cff:fedd:5a1d/64 Scope:Link
UP BROADCAST RUNNING  MTU:1500  Metric:1
RX packets:41332 errors:0 dropped:0 overruns:0 frame:0
TX packets:38758 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:141178169 (134.6 MiB)  TX bytes:11659568 (11.1 MiB)

lo        Link encap:Local Loopback
inet addr:127.0.0.1  Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING  MTU:16436  Metric:1
RX packets:79 errors:0 dropped:0 overruns:0 frame:0
TX packets:79 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:6335 (6.1 KiB)  TX bytes:6335 (6.1 KiB)

root@b9a9e6f2caed:~
09:44:56 # ps -ef|grep node
root     12801     1  1 09:44 ?        00:00:00 /data/node-0.10.21/bin/node /data/node-0.10.21/lib/node_modules/forever/bin/monitor /data/node-0.10.21/app.js
root     12813 12801  0 09:44 ?        00:00:00 /data/node-0.10.21/bin/node /data/node-0.10.21/app.js
root     12832 12817  0 09:45 pts/0    00:00:00 grep node
root@b9a9e6f2caed:~
09:45:03 # ll /data/node-0.10.21/
total 16
-rw-r--r-- 1 root root  166 Aug  4 09:44 app.js
drwxr-xr-x 2 root root 4096 Jul  3 16:42 bin
drwxr-xr-x 4 root root 4096 Oct 19  2013 lib
drwxr-xr-x 3 root root 4096 Oct 19  2013 share
root@b9a9e6f2caed:~
09:45:08 # cat /data/node-0.10.21/app.js
var app = require('/data/node-0.10.21/lib/node_modules/express/index')()
app.get('/', function (req, res) {
res.send('Node install success!\n')
})
app.listen(3301)
root@b9a9e6f2caed:~
09:45:29 # curl 172.17.0.3:3301
Node install success!

3、删除node

09:47:07 # time ansible-playbook node_delete.yml --extra-vars "host=172.17.0.3 user=root" -k
SSH password:

PLAY [172.17.0.3] *************************************************************

GATHERING FACTS ***************************************************************
ok: [172.17.0.3]

TASK: [node_delete | Stop Node Service In RedHat Client] **********************
changed: [172.17.0.3]

TASK: [node_delete | Delete Redis Install Dir In RedHat Client] ***************
changed: [172.17.0.3]

TASK: [node_delete | Delete Node Soft Link Script] ****************************
changed: [172.17.0.3] => (item=npm)
changed: [172.17.0.3] => (item=node)
changed: [172.17.0.3] => (item=forever)

PLAY RECAP ********************************************************************
172.17.0.3                 : ok=4    changed=3    unreachable=0    failed=0

real	0m8.048s
user	0m1.853s
sys	0m0.244s

4、删除后测试

09:47:21 # ssh 172.17.0.3
root@172.17.0.3's password:
Last login: Mon Aug  4 09:44:49 2014 from 172.17.42.1
root@b9a9e6f2caed:~
09:47:54 # ps -ef|grep node
root     12937 12923  0 09:47 pts/0    00:00:00 grep node
root@b9a9e6f2caed:~
09:47:56 # ll /data/
total 12
drwxr-xr-x 4 root root 4096 Jun 26 15:59 mysql
drwxr-xr-x 2 root root 4096 Jun  5 10:21 soft
drwxr-xr-x 3 root root 4096 Jul 16 13:37 webroot

如果大家想使用我的例子，可以从github里下载（地址是https://github.com/dl528888/ansible-examples/tree/master/node_install），然后放到/etc/ansible目录里，下面是内容



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