ansible作业(四)
题目
1、如果当前受管主机的根分区容量大于1G，则安装httpd和mariadb-server软件包，如果httpd和mariadb服务未运行则运行该服务。
2、将example.conf文件复制到/etc/httpd/conf.d/目录，example.conf文件内容如下：
<virtualhost *:80>
servername 0.0.0.0
documentroot /var/www/html
</virtualhost>
<directory /var/www/html>
allowoverride none
require all granted
</directory>
如果/etc/httpd/conf.d/目录下的文件更新，则重启httpd服务。配置/var/www/html/index.html文件内容如下：
zuoye
3、创建一个playbook，要求如下:
该playbook运行在所有受控节点
该playbook覆盖/etc/message文件的内容
在dev主机组的主机上，内容是:Development
在test主机组的主机上，内容是:Test
答案
1、如果当前受管主机的根分区容量大于1G，则安装httpd和mariadb-server软件包，如果httpd和mariadb服务未运行则运行该服务。ansible_mounts.block_available
[admin@centos7_server ~]$ vim test6.yml
---
- hosts: all
tasks:
- name: install pkg
yum:
name:
- httpd
- mariadb-server
when: item.mount == "/" and item.size_total > 1000000000
loop: "{{ ansible_facts.mounts }}"
- name: start service
service:
name: "{{ item }}"
state: started
loop:
- httpd
- mariadb
[admin@centos7_server ~]$ ansible-playbook test6.yml
PLAY [all] ********************************************************************************************************
TASK [Gathering Facts] ********************************************************************************************
ok: [node1]
ok: [node2]
TASK [install pkg] ************************************************************************************************
changed: [node1] => (item={u'block_used': 1327574, u'uuid': u'cd573dbd-6dd4-42e5-a944-c9c83da3f3ae', u'size_total': 32196526080, u'block_total': 7860480, u'mount': u'/', u'block_available': 6532906, u'size_available': 26758782976, u'fstype': u'xfs', u'inode_total': 15728640, u'inode_available': 15603509, u'device': u'/dev/mapper/rhel-root', u'inode_used': 125131, u'block_size': 4096, u'options': u'rw,seclabel,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota'})
skipping: [node1] => (item={u'block_used': 65479, u'uuid': u'8f1b1f6a-3db6-418c-b5d5-a815d127358f', u'size_total': 893263872, u'block_total': 218082, u'mount': u'/boot', u'block_available': 152603, u'size_available': 625061888, u'fstype': u'xfs', u'inode_total': 439296, u'inode_available': 438986, u'device': u'/dev/sda1', u'inode_used': 310, u'block_size': 4096, u'options': u'rw,seclabel,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota'})
changed: [node2] => (item={u'block_used': 1296984, u'uuid': u'e24060ab-f1c6-4dc9-9fc4-23f1258dbdf0', u'size_total': 10726932480, u'block_total': 2618880, u'mount': u'/', u'block_available': 1321896, u'size_available': 5414486016, u'fstype': u'xfs', u'inode_total': 5242880, u'inode_available': 5118051, u'device': u'/dev/mapper/rhel-root', u'inode_used': 124829, u'block_size': 4096, u'options': u'rw,seclabel,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota'})
skipping: [node2] => (item={u'block_used': 20719, u'uuid': u'3e9ea6a9-0268-43c2-88b4-3c4dfcc11d56', u'size_total': 5358223360, u'block_total': 1308160, u'mount': u'/home', u'block_available': 1287441, u'size_available': 5273358336, u'fstype': u'xfs', u'inode_total': 2621440, u'inode_available': 2621141, u'device': u'/dev/mapper/rhel-home', u'inode_used': 299, u'block_size': 4096, u'options': u'rw,seclabel,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota'})
skipping: [node2] => (item={u'block_used': 69416, u'uuid': u'edfac4a7-2906-4f23-9ef7-2eff25e07ee1', u'size_total': 3210739712, u'block_total': 783872, u'mount': u'/boot', u'block_available': 714456, u'size_available': 2926411776, u'fstype': u'xfs', u'inode_total': 1572864, u'inode_available': 1572554, u'device': u'/dev/nvme0n1p1', u'inode_used': 310, u'block_size': 4096, u'options': u'rw,seclabel,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota'})
TASK [start service] **********************************************************************************************
changed: [node1] => (item=httpd)
changed: [node2] => (item=httpd)
changed: [node2] => (item=mariadb)
changed: [node1] => (item=mariadb)
PLAY RECAP ********************************************************************************************************
node1 : ok=3 changed=2 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
node2 : ok=3 changed=2 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
2、将example.conf文件复制到/etc/httpd/conf.d/目录，example.conf文件内容如下：
<virtualhost *:80>
servername 0.0.0.0
documentroot /var/www/html
</virtualhost>
<directory /var/www/html>
allowoverride none
require all granted
</directory>
如果/etc/httpd/conf.d/目录下的文件更新，则重启httpd服务。配置/var/www/html/index.html文件内容如下：
zuoye
[admin@centos7_server ~]$ vim test6-1.yml
---
- hosts: all
tasks:
- copy:
src: example.conf
dest: /etc/httpd/conf.d/example.conf
notify: restart httpd
- copy:
content: "zuoye\n"
dest: /var/www/html/index.html
handlers:
- name: restart httpd
service:
name: httpd
state: restarted
[admin@centos7_server ~]$ ansible-playbook test6-1.yml
PLAY [all] ********************************************************************************************************
TASK [Gathering Facts] ********************************************************************************************
ok: [node2]
ok: [node1]
TASK [copy] *******************************************************************************************************
ok: [node2]
ok: [node1]
TASK [copy] *******************************************************************************************************
changed: [node1]
changed: [node2]
PLAY RECAP ********************************************************************************************************
node1 : ok=3 changed=1 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
node2 : ok=3 changed=1 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
3、创建一个playbook，要求如下:
该playbook运行在所有受控节点
该playbook覆盖/etc/message文件的内容
在dev主机组的主机上，内容是:Development
在test主机组的主机上，内容是:Test
[admin@centos7_server ~]$ vim test6-2.yml
---
- hosts: all
tasks:
- copy:
content: "development"
dest: /etc/message
when: inventory_hostname in groups.dev
- copy:
content: "Test"
dest: /etc/message
when: inventory_hostname in groups.test
[admin@centos7_server ~]$ ansible-playbook test6-2.yml
PLAY [all] ********************************************************************************************************
TASK [Gathering Facts] ********************************************************************************************
ok: [node1]
ok: [node2]
TASK [copy] *******************************************************************************************************
skipping: [node1]
changed: [node2]
TASK [copy] *******************************************************************************************************
skipping: [node2]
changed: [node1]
PLAY RECAP ********************************************************************************************************
node1 : ok=2 changed=1 unreachable=0 failed=0 skipped=1 rescued=0 ignored=0
node2 : ok=2 changed=1 unreachable=0 failed=0 skipped=1 rescued=0 ignored=0