1 #第一题部署nginx反向代理三个web服务，调度算法使用加权轮询 4 #/bin/bash
5 systemctl status nginx
6 if(($?==4))
7 then
8 yum install -y nginx
9 if(($?==0))
10 then
11 #echo 'ok!'
12 systemctl start nginx
13 if(($?==0))
14 then
15 echo "Nginx is start!"
16 else
17 echo "nginx is Fail"
18 fi
19 else
20 echo""nginx install is Fail!!!"
21
22 fi
23 elif(($?==3))
24 then
25 systemctl start nginx
26 if(($?==0))
27 then
28 echo "Nginx is start!"
29 else
30 echo "not start!!"
31 fi
32 elif(($?==0))
33 then
34 echo "alright!"
35 else
36 echo "not start"
37 fi
38 echo "Is writing...."
39 grep 'upstream' /etc/nginx/nginx.conf
40 if(($?!=0))
41 then
42 sed -ri '/^http/a upstream lzq {' /etc/nginx/nginx.conf
43 sed -ri '/^upst/a server website1 weight=3;' /etc/nginx/nginx.conf
44 sed -ri '/^server website1 /a server website2 /a website3;'
45
46 /etc/nginx/nginx.conf
47 sed -ri '/^server yanlongweb2/a }' /etc/nginx/nginx.conf
48 sed -ri '/^server yanlongweb3/a }' /etc/nginx/nginx.conf
49 sed -ri '/^( +)(location)( )(/)/a proxy_pass http://lzq;'
50
51 /etc/nginx/nginx.conf
52 fi
53 echo "config write is OK!"
54 systemctl reload nginx
55 if(($?==0))
56 then
57 echo "balance is OK!"
58 else
59 echo "not OK!"
60 fi
61 systemctl status nfs
62 if(($?==4))
63 then
64 yum install rpcbind nfs-utils -y
65 if(($?==0))
66 then
67 #echo 'Yes!'
68 systemctl start nfs
69 if(($?==0))
70 then
71 echo "nfs is start!"
72 else
73 echo "nfs is Fail!!!"
74 fi
75 else
76 echo"nfs install is Fail!!!"
77
78 fi
79 elif(($?==3))
80 then
81 systemctl start nfs
82 if(($?==0))
83 then
84 echo "nfs is start!"
85 else
86 echo "nfs not start!"
87 fi
88 elif(($?==0))
89 then
90 echo "alrgiht!"
91 else
92 echo "bad"
93 fi
94 echo "Is writing...."
95 echo "/webindex 192.168.16.0/24(rw,sync,fsid=0)" > /etc/exports
96 echo "config write is OK!"
97 systemctl reload nfs
98 if(($?==0))
99 then
100 echo "NFS service is start!"
101 else
102 echo "Sorry!!"
103 fi
104
105 #第二题所有web服务使用共享存储nfs，保证所有web都对其有读写权限，保证数据一致性
106 #/bin/bash
107 systemctl status nginx
108 if(($?==4))
109 then
110 yum install -y nginx
111 if(($?==0))
112 then
113 #echo 'ok!'
114 systemctl start nginx
115 if(($?==0))
116 then
117 echo " Nginx is start !!"
118 else
119 echo "nginx is Fail!!!"
120 fi
121 else
122 echo"nginx install is Fail!!!"
123
124 fi
125 elif(($?==3))
126 then
127 systemctl start nginx
128 if(($?==0))
129 then
130 echo "Nginx is start!"
131 else
132 echo "sorry!!"
133 fi
134 elif(($?==0))
135 then
136 echo "alright!"
137 else
138 echo "fail"
139 fi
140 echo "IS writing...."
141 sed -ri '/^( +)(location)( )(/)/a root /nginxwebservice;'
142
143 /etc/nginx/nginx.conf
144 sed -ri '/^root /nginxwebservice/a index web.html;'
145
146 /etc/nginx/nginx.conf
147 echo "config write is OK!"
148 systemctl reload nginx
149 if(($?==0))
150 then
151 echo "balance is OK!"
152 else
153 echo "fail!!"
154 fi
155 systemctl status nfs
156 if(($?==4))
157 then
158 yum install rpcbind nfs-utils -y
159 if(($?==0))
160 then
161 #echo 'Yes!'
162 systemctl start nfs
163 if(($?==0))
164 then
165 echo "nfs is start OK!!"
166 else
167 echo "nfs is Fail!!!"
168 fi
169 else
170 echo"nfs install is Fail!!!"
171
172 fi
173 elif(($?==3))
174 then
175 systemctl start nfs
176 if(($?==0))
177 then
178 echo " nfs is start OK!!!"
179 else
180 echo "fail!!"
181 fi
182 elif(($?==0))
183 then
184 echo "alright!"
185 else
186 echo "bad"
187 fi
188 echo "is writing...."
189 mount -t nfs 192.168.16.120:/website/ /nginxwebservice/
190 echo "config write is OK!"
191 systemctl reload nfs
192 if(($?==0))
193 then
194 echo "NFS is OK!"
195 else
196 echo "bad!"
197 fi
198
199 #第三题shell脚本-监控及邮件提醒
200
201 #!/usr/bin/python
202 # -*- coding: UTF-8 -*-
203 import sys
204 import smtplib
205 import email.mime.multipart
206 import email.mime.text
207
208 server = 'smtp.163.com'
209 port = '25'
210
211 def sendmail(server,port,user,pwd,msg):
212 smtp = smtplib.SMTP()
213 smtp.connect(server,port)
214 smtp.login(user, pwd)
215 smtp.sendmail(msg['from'], msg['to'], msg.as_string())
216 smtp.quit()
217 print('邮件发送成功email has send out !')
218
219
220 if __name__ == '__main__':
221 msg = email.mime.multipart.MIMEMultipart()
222 msg['Subject'] = '服务器报警请注意！'
223 msg['From'] = 'python4_mail@163.com'
224 msg['To'] = 'woshixinfode@sina.com'
225 user = 'python4_mail'
226 pwd = 'sbalex3714'
227 content='%s
%s' %('
'.join(sys.argv[1:4]),' '.join(sys.argv[4:]))
228
229 #格式处理，专门针对我们的邮件格式
230
231 txt = email.mime.text.MIMEText(content, _charset='utf-8')
232 msg.attach(txt)
233
234 sendmail(server,port,user,pwd,msg)
235
236 #监控内容
237 #/bin/bash
238 bu=`free | awk 'NR==2{print $6}'`
239 to=`free | awk 'NR==2{print $2}'`
240 mem=`expr "scale=2;$bu/$to" |bc -l | cut -d. -f2`
241 if(($mem >= 70))
242 then
243 msg="TIME:$(date +%F_%T)
244 HOSTNAME:$(hostname)
245 IPADDR:$(ifconfig |awk 'NR==2{print $2}')
246 MSG:内存溢出了！已经用了${mem}%"
247 echo $msg
248 /usr/bin/pymail.py $msg
249 fi
250 systemctl status nginx
251 if(($?!=0))
252 then
253 msg="TIME:$(date +%F_%T)
254 HOSTNAME:$(hostname)
255 IPADDR:$(ifconfig |awk 'NR==2{print $2}')
256 MSG: Nginx 进程出现异常请注意查看！"
257 echo $msg
258 /usr/bin/pymail.py $msg
259 fi
260 systemctl status nfs
261 if(($?!=0))
262 then
263 msg="TIME:$(date +%F_%T)
264 HOSTNAME:$(hostname)
265 IPADDR:$(ifconfig |awk 'NR==2{print $2}')
266 MSG: NFS 进程出现异常请注意查看！"
267 echo $msg
268 /usr/bin/pymail.py $msg
269 fi