Cobbler Server：自动修改IP设定

Cobbler Server所在的主机如果IP地址改掉了，那么Cobbler服务端也是需要做出相应变更的。

下面的脚本可以让你一键完成所有关于IP变更的配置：
使用方法：
auto_cobbler_change_ip.sh [新的IP地址]

如：
auto_cobbler.sh192.168.23.3

就好了。

代码脚本如下：

#!/bin/bash

# var
purpose_ip="$1"
purpose_ip_3slot=$(echo $purpose_ip | awk -F'.' '{print $1"."$2"."$3}')

# display
echo "Purpose IP = [$purpose_ip]"
echo "3 Slot is: [$purpose_ip_3slot]"

# function

function modify_file_by_search() {

  # var
  target_filename="$1"
  string_search="$2"
  split_by=$3
  string_purpose="$4"

  slot_number=$(echo "$string_purpose" | awk -F'.' -v count=0 '{for(i=1;i<=NF;i++){count=i} print count}')

  # display
  echo "=========================="
  echo "File: $target_filename"
  echo "Search: $string_search"
  echo "Split by: [$split_by]"
  echo "Purpose is = [$string_purpose]"
  echo "Slot number = [$slot_number]"

  # var by compute
  #string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2)
  string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2 | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//')
  # display
  echo "Old content is --> [$string_content]"

  # do
  echo "-------"
  echo "do modify"
  sed -i "/$string_search/s/$string_content/$string_purpose/g" $target_filename

  # after
  #string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2 | rev | cut -d' ' -f1 | rev)
  string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2 | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev |sed 's/.$//')

  echo "-------"
  echo "after modify"
  echo "Content is --> [$string_content]"


}

function modify_file_by_search_1() {

  # var
  target_filename="$1"
  #string_search="$2"
  #split_by=$3
  string_purpose="$2"

  slot_number=$(echo "$string_purpose" | awk -F'.' -v count=0 '{for(i=1;i<=NF;i++){count=i} print count}')

  # display
  echo "=========================="
  echo "File: $target_filename"
  #echo "Search: $string_search"
  #echo "Split by: [$split_by]"
  echo "Purpose is = [$string_purpose]"
  echo "Slot number = [$slot_number]"

  # var by compute
  #string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2)
  string_content=$(cat $target_filename | grep "subnet" | grep "netmask" | grep  "{" | awk '{print $2}' | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//')
  # display
  echo "Old content is --> [$string_content]"

  # do
  echo "-------"
  echo "do modify"
  sed -i "/subnet/s/$string_content/$string_purpose/g" $target_filename

  # after
  #string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2 | rev | cut -d' ' -f1 | rev)
  string_content=$(cat $target_filename | grep "subnet" | grep "netmask" | grep  "{" | awk '{print $2}' | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//')

  echo "-------"
  echo "after modify"
  echo "Content is --> [$string_content]"


}

function modify_file_by_search_2() {

  # var
  target_filename="$1"
  string_search="$2"
  #split_by=$3
  string_purpose="$3"

  slot_number=$(echo "$string_purpose" | awk -F'.' -v count=0 '{for(i=1;i<=NF;i++){count=i} print count}')

  # display
  echo "=========================="
  echo "File: $target_filename"
  echo "Search: $string_search"
  #echo "Split by: [$split_by]"
  echo "Purpose is = [$string_purpose]"
  echo "Slot number = [$slot_number]"

  # var by compute
  #string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2)
  string_content=$(cat $target_filename | grep "$string_search" | awk '{print $3}' | grep -v "iface" | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//')
  # display
  echo "Old content is --> [$string_content]"

  # do
  echo "-------"
  echo "do modify"
  sed -i "/$string_search/s/$string_content/$string_purpose/g" $target_filename

  # after
  #string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2 | rev | cut -d' ' -f1 | rev)
  string_content=$(cat $target_filename | grep "$string_search" | awk '{print $3}' | grep -v "iface" | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//')

  echo "-------"
  echo "after modify"
  echo "Content is --> [$string_content]"


}

function modify_file_by_search_3() {

  # var
  target_filename="$1"
  string_search="$2"
  #split_by=$3
  string_purpose="$3"

  slot_number=$(echo "$string_purpose" | awk -F'.' -v count=0 '{for(i=1;i<=NF;i++){count=i} print count}')

  # display
  echo "=========================="
  echo "File: $target_filename"
  echo "Search: $string_search"
  #echo "Split by: [$split_by]"
  echo "Purpose is = [$string_purpose]"
  echo "Slot number = [$slot_number]"

  # var by compute
  #string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2)
  string_content=$(cat $target_filename | grep "$string_search" | awk '{print $2}' | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//')
  # display
  echo "Old content is --> [$string_content]"

  # do
  echo "-------"
  echo "do modify"
  sed -i "/$string_search/s/$string_content/$string_purpose/g" $target_filename

  # after
  #string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2 | rev | cut -d' ' -f1 | rev)
  string_content=$(cat $target_filename | grep "$string_search" | awk '{print $2}' | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//')

  echo "-------"
  echo "after modify"
  echo "Content is --> [$string_content]"


}

# settings
modify_file_by_search "/etc/cobbler/settings" "^server" ':' $purpose_ip
modify_file_by_search "/etc/cobbler/settings" "^next_server" ':' $purpose_ip

# dhcp

modify_file_by_search_3 "/etc/dhcp/dhcpd.conf" "next-server" $purpose_ip

modify_file_by_search_1 "/etc/cobbler/dhcp.template" $purpose_ip_3slot
modify_file_by_search_1 "/etc/dhcp/dhcpd.conf"  $purpose_ip_3slot

modify_file_by_search_2 "/etc/cobbler/dhcp.template" "option routers" $purpose_ip_3slot
modify_file_by_search_2 "/etc/dhcp/dhcpd.conf" "option routers" $purpose_ip_3slot

modify_file_by_search_2 "/etc/cobbler/dhcp.template" "option domain-name-servers" $purpose_ip_3slot
modify_file_by_search_2 "/etc/dhcp/dhcpd.conf" "option domain-name-servers" $purpose_ip_3slot

modify_file_by_search_2 "/etc/cobbler/dhcp.template" "range dynamic-bootp" $purpose_ip_3slot
modify_file_by_search_2 "/etc/dhcp/dhcpd.conf" "range dynamic-bootp" $purpose_ip_3slot

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

#!/bin/bash

# var

purpose_ip="$1"

purpose_ip_3slot=$(echo $purpose_ip | awk -F'.' '{print $1"."$2"."$3}')

# display

echo "Purpose IP = [$purpose_ip]"

echo "3 Slot is: [$purpose_ip_3slot]"

# function

function modify_file_by_search() {

# var

target_filename="$1"

string_search="$2"

split_by=$3

string_purpose="$4"

slot_number=$(echo "$string_purpose" | awk -F'.' -v count=0 '{for(i=1;i<=NF;i++){count=i} print count}')

# display

echo "=========================="

echo "File: $target_filename"

echo "Search: $string_search"

echo "Split by: [$split_by]"

echo "Purpose is = [$string_purpose]"

echo "Slot number = [$slot_number]"

# var by compute

#string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2)

string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2 | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//')

# display

echo "Old content is --> [$string_content]"

# do

echo "-------"

echo "do modify"

sed -i "/$string_search/s/$string_content/$string_purpose/g" $target_filename

# after

echo "-------"

echo "after modify"

echo "Content is --> [$string_content]"

}

function modify_file_by_search_1() {

# var

target_filename="$1"

#string_search="$2"

#split_by=$3

string_purpose="$2"

slot_number=$(echo "$string_purpose" | awk -F'.' -v count=0 '{for(i=1;i<=NF;i++){count=i} print count}')

# display

echo "=========================="

echo "File: $target_filename"

#echo "Search: $string_search"

#echo "Split by: [$split_by]"

echo "Purpose is = [$string_purpose]"

echo "Slot number = [$slot_number]"

# var by compute

#string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2)

string_content=$(cat $target_filename | grep "subnet" | grep "netmask" | grep "{" | awk '{print $2}' | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//')

# display

echo "Old content is --> [$string_content]"

# do

echo "-------"

echo "do modify"

sed -i "/subnet/s/$string_content/$string_purpose/g" $target_filename

# after

echo "-------"

echo "after modify"

echo "Content is --> [$string_content]"

}

function modify_file_by_search_2() {

# var

target_filename="$1"

string_search="$2"

#split_by=$3

string_purpose="$3"

slot_number=$(echo "$string_purpose" | awk -F'.' -v count=0 '{for(i=1;i<=NF;i++){count=i} print count}')

# display

echo "=========================="

echo "File: $target_filename"

echo "Search: $string_search"

#echo "Split by: [$split_by]"

echo "Purpose is = [$string_purpose]"

echo "Slot number = [$slot_number]"

# var by compute

#string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2)

string_content=$(cat $target_filename | grep "$string_search" | awk '{print $3}' | grep -v "iface" | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//')

# display

echo "Old content is --> [$string_content]"

# do

echo "-------"

echo "do modify"

sed -i "/$string_search/s/$string_content/$string_purpose/g" $target_filename

# after

echo "-------"

echo "after modify"

echo "Content is --> [$string_content]"

}

function modify_file_by_search_3() {

# var

target_filename="$1"

string_search="$2"

#split_by=$3

string_purpose="$3"

slot_number=$(echo "$string_purpose" | awk -F'.' -v count=0 '{for(i=1;i<=NF;i++){count=i} print count}')

# display

echo "=========================="

echo "File: $target_filename"

echo "Search: $string_search"

#echo "Split by: [$split_by]"

echo "Purpose is = [$string_purpose]"

echo "Slot number = [$slot_number]"

# var by compute

#string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2)

string_content=$(cat $target_filename | grep "$string_search" | awk '{print $2}' | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//')

# display

echo "Old content is --> [$string_content]"

# do

echo "-------"

echo "do modify"

sed -i "/$string_search/s/$string_content/$string_purpose/g" $target_filename

# after