1、搭建DHCP服务，为局域网内用户提供10.1.1.0/24网段的IP，且租约期默认为48小时
yum install dhcp
vim /etc/dhcp/dhcpd.conf
option domain-name "example.org";
option domain-name-servers 10.1.1.10;
default-lease-time 172800;
max-lease-time 691200;
log-facility local7;
subnet 10.1.1.0 netmask 255.255.255.0 {
range 10.1.1.100 10.1.1.200;
option routers 10.1.1.2;
}
systemctl start dhcpd
客户端便可自动获取ip
2、在上述实验基础上，实现DHCP中继
DHCP服务器：
vim /etc/dhcp/dhcpd.conf
option domain-name "example.org";
option domain-name-servers 10.1.1.10;
default-lease-time 172800;
max-lease-time 691200;
log-facility local7;
subnet 10.1.1.0 netmask 255.255.255.0 {
range 10.1.1.100 10.1.1.200;
option routers 10.1.1.2;
}
subnet 10.1.2.0 netmask 255.255.255.0 {
range 10.1.2.100 10.1.2.200;
option routers 10.1.2.2;
option domain-name-servers 10.1.2.10;
}
route add -net 10.1.2.0 netmask 255.255.255.0 ens33
systemctl restart dhcpd
systemctl restart network
DHCP中继：两个网卡，一个与dhcp服务器同一网络，一个与客户端在另外一个网络
yum install dhcp
vim /etc/sysctl.conf
net.ipv4.ip_forward=1
sysctl -p
/usr/sbin/dhcrelay 10.1.1.10
客户端：可以自动获取到 10.1.2.0 的网络
3、借助Ansible Playbook自动化搭建LNMP环境（可借助yum）
yum install ansible
vim /etc/ansible/hosts
[LNMPserver]
192.168.0.137
ssh-keygen -t rsa -P ""
ssh-copy-id -i ~/.ssh/id_rsa.pub root@192.168.0.137
vim /etc/ansible/playbooks/lnmp.yaml
- hosts: LNMPserver
remote_user: root
tasks:
- name: install {{ lnmp }}
yum: name={{ lnmp }} state=latest
vars:
lnmp:
- php
- httpd
- mariadb-server
- php-mysql
- php-fpm
- php-mbstring
- php-mcrypt
when: ansible_os_family == "RedHat"
- name: copy phpmyadmin file
copy: src=/root/phpMyAdmin-4.0.10.20-all-languages/ dest=/var/www/html/pma/
- name: copy mysql file
copy: src=/etc/my.cnf.d/server.cnf dest=/etc/my.cnf.d/
- name: start httpd
service: name=httpd state=started
- name: start mariadb
service: name=mariadb state=started
- name: modify mysql passwd login
shell: mysqladmin -uroot password "ouyang0810"
ansible-playbook /etc/ansible/playbooks/lnmp.yaml
在客户端浏览即可：
http://192.168.0.137/pma/index.php
4、采用Ansible Role方式自动化搭建LNMP
yum install ansible
vim /etc/ansible/hosts
[LNMPserver]
192.168.0.137
ssh-keygen -t rsa -P ""
ssh-copy-id -i ~/.ssh/id_rsa.pub root@192.168.0.137
mkdir -p /etc/ansible/roles/lnmp/{tasks,vars,templates,files,handlers,meta,default}
cp -a /root/phpMyAdmin-4.0.10.20-all-languages/* /etc/ansible/roles/lnmp/files/pma/
mkdir -p /etc/ansible/roles/lnmp/{files,handlers,tasks,templates,vars}
vim /etc/ansible/playbooks/lnmp.yaml
- hosts: LNMPserver
remote_user: root
roles:
- lnmp
vim /etc/ansible/roles/lnmp/tasks/main.yaml
- name: install {{ lnmp }}
yum: name={{ lnmp }} state=installed
when: ansible_os_family == "RedHat"
- name: copy lnmap zip
copy: src=phpMyAdmin-4.0.10.20-all-languages.zip dest=/var/www/html/
- name: unzip phpmyadmin
shell: cd /var/www/html;unzip phpMyAdmin-4.0.10.20-all-languages.zip;cp phpMyAdmin-4.0.10.20-all-languages/config.sample.inc.php phpMyAdmin-4.0.10.20-all-languages/config.inc.php;ln -s phpMyAdmin-4.0.10.20-all-languages pma
- name: nginx template
template: src=server.conf.j2 dest=/etc/my.cnf.d/
tags: conf
notify: restart mariadb
- name: start httpd
service: name=httpd state=started
- name: start mariadb
service: name=mariadb state=started
- name: modify mysql passwd login
shell: mysqladmin -uroot password "ouyang0810"
vim /etc/ansible/roles/lnmp/handlers/main.yaml
- name: restart mariadb
service: name=mariadb state=restarted
vim /etc/ansible/roles/lnmp/templates/server.conf.j2
[mysqld]
log_bin=mysql-bin
innodb_file_per_table=ON
skip_name_resolve=ON
vim /etc/ansible/roles/lnmp/vars/main.yaml
lnmp:
- php
- httpd
- mariadb-server
- php-mysql
- php-fpm
- php-mbstring
- php-mcrypt
ansible-playbook /etc/ansible/playbooks/lnmp.yaml
在客户端浏览即可：
http://192.168.0.137/pma/index.php
