Ansible

Ansible入门 示例

Install

1、保证网的连通，有repo源，环境：centos7

2、安装依赖：

[root@localhost ~]# yum -y install yum-plugin-priorities 

# set [priority=1] to official repository

[root@localhost ~]# sed -i -e "s/\]$/\]\npriority=1/g" /etc/yum.repos.d/CentOS-Base.repo 

# install from EPEL

[root@localhost ~]#  yum -y install epel-release 

3、安装Ansible

[root@localhost ~]#  yum --enablerepo=epel -y install ansible openssh-clients 

# cat version
[root@localhost ~]# ansible --version
ansible 2.4.2.0
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python2.7/site-packages/ansible
  executable location = /usr/bin/ansible
  python version = 2.7.5 (default, Aug  4 2017, 00:39:18) [GCC 4.8.5 20150623 (Red Hat 4.8.5-16)]

4、设置master主机和目标服务主机

[root@localhost ~]# vi /etc/ansible/ansible.cfg 

# line 39: uncomment (not check host key)
host_key_checking = False

[root@localhost ~]#  mv /etc/ansible/hosts /etc/ansible/hosts.org 
[root@localhost ~]#  vi /etc/ansible/hosts 

# write clients you manage

192.168.1.124

# possible to group

# define any group name you like

[target_servers]
# write clients to be grouped


192.168.1.123
192.168.1.122
# show all defined hosts
[root@localhost ~]# ansible all --list-host
  hosts (3):
    192.168.1.124
    192.168.1.123
    192.168.1.122
# show specific hosts in a group
[root@localhost ~]# ansible target_servers --list-hosts
  hosts (2):
    192.168.1.123
    192.168.1.122

Basic usage

1、将master主机上的密钥对发送到目标服务主机

[root@localhost ~]# ssh-keygen -t rsa 
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:hGBOReFB6031aykx9qn+gZ6N/58BH99xe55QIN8MufM [email protected]
The key's randomart image is:
+---[RSA 2048]----+
|    ++*.  .      |
|   + o + . .  .  |
|    . + o +..+   |
|     . + . +o+*  |
|      . S . *= *.|
|           =  * B|
|          o .. E+|
|         o + ...=|
|          =o+..+o|
+----[SHA256]-----+

[root@localhost ~]# scp -r /root/.ssh/id_rsa.pub 192.168.1.122:/root/.ssh/authorized_keys
[email protected]'s password: 
scp: /root/.ssh/authorized_keys: No such file or directory
# creat .ssh directory,eg:mkdir .ssh/

[root@localhost ~]# scp -r /root/.ssh/id_rsa.pub 192.168.1.122:/root/.ssh/authorized_keys
[email protected]'s password: 
Permission denied, please try again.
[email protected]'s password: 
id_rsa.pub                                        100%  408   339.7KB/s   00:00    
[root@localhost ~]# scp -r /root/.ssh/id_rsa.pub 192.168.1.123:/root/.ssh/authorized_keys
[email protected]'s password: 
id_rsa.pub                                        100%  408   501.3KB/s   00:00    

2、执行ping到目标服务器组

[root@localhost ~]# ansible target_servers -m ping
192.168.1.122 | SUCCESS => {
    "changed": false, 
    "ping": "pong"
}
192.168.1.123 | SUCCESS => {
    "changed": false, 
    "ping": "pong"
}

[root@localhost ~]# ansible target_servers -k -m command -a "uptime"
SSH password: 
192.168.1.123 | SUCCESS | rc=0 >>
 00:16:12 up 21 min,  3 users,  load average: 0.00, 0.00, 0.00

192.168.1.122 | SUCCESS | rc=0 >>
 00:16:12 up 18 min,  3 users,  load average: 0.00, 0.03, 0.02

[root@localhost ~]# ansible target_servers -k -m command -a "cat /etc/shadow" -b --ask-become-pass
SSH password: 
SUDO password[defaults to SSH password]: 
192.168.1.123 | SUCCESS | rc=0 >>
root:$6$48ZMF9FizOdf4NfQ$9A.y63BDtbIbLOKfur7KKwq5VXmXU7hHU16WBzOOQL3KVPbdPpf2azuXiGpQ/EhKPMImq/F1IQ4iKipHbsjGk1::0:99999:7:::
bin:*:17110:0:99999:7:::
daemon:*:17110:0:99999:7:::
adm:*:17110:0:99999:7:::
lp:*:17110:0:99999:7:::
sync:*:17110:0:99999:7:::
shutdown:*:17110:0:99999:7:::
halt:*:17110:0:99999:7:::
mail:*:17110:0:99999:7:::
operator:*:17110:0:99999:7:::
games:*:17110:0:99999:7:::
ftp:*:17110:0:99999:7:::
nobody:*:17110:0:99999:7:::
systemd-network:!!:17655::::::
dbus:!!:17655::::::
polkitd:!!:17655::::::
postfix:!!:17655::::::
sshd:!!:17655::::::
nice:$6$ZIbd4kXHFtv5TZBj$LO.KlRrLUVt5CSrhUaHo4O/lpoWThdb6JwkAulxoaf8g1VGrehB.FeUiBoYqnNq22Af2jJkbAxSrpMjgToIHx1::0:99999:7:::

192.168.1.122 | SUCCESS | rc=0 >>
root:$6$.3Or/V3DVSEpiQGe$w3M7sf1NPKZaV263UbRdeMM2oLqp7pobHtqT9HQg4O0B3yLMm/03Wx6RnSnRrlR2W0EQXSFfRmpbYtCb14tC3.::0:99999:7:::
bin:*:17110:0:99999:7:::
daemon:*:17110:0:99999:7:::
adm:*:17110:0:99999:7:::
lp:*:17110:0:99999:7:::
sync:*:17110:0:99999:7:::
shutdown:*:17110:0:99999:7:::
halt:*:17110:0:99999:7:::
mail:*:17110:0:99999:7:::
operator:*:17110:0:99999:7:::
games:*:17110:0:99999:7:::
ftp:*:17110:0:99999:7:::
nobody:*:17110:0:99999:7:::
systemd-network:!!:17655::::::
dbus:!!:17655::::::
polkitd:!!:17655::::::
postfix:!!:17655::::::
sshd:!!:17655::::::
nice:$6$VR5HAGXfMcZR0BXe$skusoEq06akncAh1bM.D6d0iunvUqiSLF.SvW3PHHDQWJjk4j3NyNYZYwpYuvE6n.1KxxRjKOoF9ci3CAds5e.::0:99999:7:::

3、基本用法说明

官方网站：http://docs.ansible.com/ansible/latest/modules/modules_by_category.html

• 主要用法分两种ansible——ad-hoc和ansible——playbook。

• ansible Target Hosts [Option] -m [Module] -a [Arguments] -k [passwd]

• you’d like to use another user’s priviledge except root, specify the option “–become-user=xxx”. If you’d like to use another way to use priviledge except sudo (su | pbrun | pfexec | runas), specify the option “–become-method=xxx”.

  name|use
  –|--
  ansible_ad-hoc|类比shell命令，直接执行
  ansible_playbook|类比shell scripts命令，适合于复杂应用的部署，可同步或异步的发起任务

ad-hoc

1、file模块

作用：完成对文件的基本操作，eg：文件或目录的创建、删除、修改权限等

# 在target_servers主机上创建一个名为testfile的文件，如果testfile文件已经存在，则会更新文件的时间戳，与touch命令的作用相同。
ansible arget_servers -m file -a "path=/testdir/testfile state=touch"

# 在target_servers主机上创建一个名为testfile的文件，如果testfile文件已经存在，则不会进行任何操作
ansible arget_servers -m file -a "path=/testdir/testdir state=directory"

#在target_servers主机上为testfile文件创建软链接文件，软链接名为linkfile，执行下面命令的时候，testfile已经存在
ansible arget_servers -m file -a "path=/testdir/linkfile state=link src=/testdir/testfile"

#在target_servers主机上为testfile文件创建硬链接文件，硬链接名为linkfile，执行下面命令的时候，testfile已经存在
ansible arget_servers -m file -a "path=/testdir/hardfile state=hard src=/testdir/testfile"

#在创建链接文件时，如果源文件不存在，或者链接文件与其他文件同名，强制覆盖同名或者创建链接文件
ansible arget_servers -m file -a "path=/testdir/linkfile state=link src=sourcefile force=yes"

删除远程机器上的指定文件或目录
ansible arget_servers -m file -a "path=/testdir/testdir state=absent"

在创建文件或目录的时候指定属主，或者修改远程主机上的文件或目录的属主。
ansible arget_servers -m file -a "path=/testdir/abc state=touch owner=zsy"
ansible arget_servers -m file -a "path=/testdir/abc owner=zsy"
ansible arget_servers -m file -a "path=/testdir/abc state=directory owner=zsy"

# 在创建文件或目录的时候指定属组，或者修改远程主机上的文件或目录的属组。
ansible arget_servers -m file -a "path=/testdir/abb state=touch group=zsy"
ansible arget_servers -m file -a "path=/testdir/abb group=zsy"
ansible arget_servers -m file -a "path=/testdir/abb state=directory group=zsy"

# 在创建文件或目录的时候指定权限，或者修改远程主机上的文件或目录的权限。
ansible arget_servers -m file -a "path=/testdir/abb state=touch mode=0644"
ansible arget_servers -m file -a "path=/testdir/abb mode=0644"
ansible arget_servers -m file -a "path=/testdir/binfile mode=4700"
ansible arget_servers -m file -a "path=/testdir/abb state=directory mode=0644"

#当操作远程主机中的目录时，同时递归的将目录中的文件的属主属组都设置为rainbowzj
ansible arget_servers -m file -a "path=/testdir/abd state=directory owner=rainbowzj group=rainbowzj recurse=rainbowzj"

2、copy模块

作用：拷贝文件

# 将ansible主机中/testdir/copytest文件复制到远程主机的/opt目录下，注意，如果copytest文件已经存在于远程主机的/opt目录中，并且远程主机中的copytest与ansible主机中copytest文件内容不同，那么使用如下命令时，远程主机中的copytest文件将被覆盖。
ansible target_servers -m copy -a "src=/copytest dest=/opt/"

#在远程主机的/opt目录下生成文件test，test文件中有两行文本，第一行文本为aaa，第二行为bbb，当使用content指定文件内容时，dest参数对应的值必须是一个文件，而不能是一个路径。
ansible target_servers -m copy -a 'content="aaa\nbbb\n" dest=/opt/test'

#将ansible主机中//testdir/copytest文件复制到远程主机的/opt目录中时，如果copytest文件已经存在/opt/copytest文件，并且远程主机中的copytest与ansible主机中copytest文件内容不一致，则不执行拷贝操作，远程主机中的/opt/copytest文件内容不会改变。
ansible target_servers -m copy -a "src=/testdir/copytest dest=/opt/ force=no"

#将ansible主机中//testdir/copytest文件复制到远程主机的/opt目录中时，如果远程主机已经存在/opt/copytest文件，并且远程主机中的copytest与ansible主机中copytest文件内容不一致，会执行拷贝操作，但在执行拷贝操作之前，会将远程主机中的原文件重命名，一座备份，然后在进行拷贝操作。
ansible target_servers -m copy -a "src=/testdir/copytest dest=/opt/ backup=yes"

# 拷贝文件时，指定文件的属主，需要注意，远程主机上必须存在对应的用户。
ansible target_servers -m copy -a "src=/testdir/copytest dest=/opt/ owner=rainbowzj"

# 拷贝文件时，指定文件的属组，需要注意，远程主机上必须存在对应的组。
ansible target_servers -m copy -a "src=/testdir/copytest dest=/opt/ group=rainbowzj"

# 拷贝文件时，指定文件的权限
ansible target_servers -m copy -a "src=/testdir/copytest dest=/opt/ mode=0640"

3、将服务器的信息输入到一个文档中并以‘====’分割

ansible-doc:ansible target_servers -m blockinfile -a 'path=/root/a.txt block="========" '

将CPU信息与是否为固态硬盘的信息放入a.txt中，且中间以’----‘分割。

- hosts: target_servers
  tasks:
     - shell: cat /proc/cpuinfo > a.txt
     - blockinfile: path=/root/a.txt block="------------"
     - shell: cat /sys/block/*/queue/rotational >> a.txt
#     - shell: fdisk -l > c.txt
#     - shell: dmidecode > d.txt
#     - shell: free -m > e.txt
#     - shell: dd if=/dev/zero of=test bs=8k count=256k conv=fdatasync > f.txt

将所有需要的放入a.txt中。可以通过设置的关键字进行查找对应的位置；

- hosts: target_servers
  tasks:
     - shell: cat /proc/cpuinfo > a.txt
     - blockinfile: path=/root/a.txt block="------------" marker="#{mark} I am fengefu"
     - shell: cat /sys/block/*/queue/rotational >> a.txt
     - blockinfile: path=/root/a.txt block="============" marker="#{mark} memory"
     - shell: fdisk -l >> a.txt
     - blockinfile: path=/root/a.txt block="============" marker="#{mark} IOspeed"
     - shell: dd if=/dev/zero of=test bs=8k count=256k conv=fdatasync >> a.txt
     - blockinfile: path=/root/a.txt block="============" marker="#{mark} present memory"
     - shell: free -m >> a.txt
     - blockinfile: path=/root/a.txt block="============" marker="#{mark} zhubanxinxi"
     - shell: dmidecode -t 16 >> a.txt 

发现执行dd语句的结果不能得到返回

playbook

1、例：创建文本

[root@localhost ~]# vi playbook_sample.yml 

- hosts: target_servers
# define tasks
  tasks:
# task name (any name you like)

  - name: Test Task
# use file module to set the file state

    file: path=/home/test.conf state=touch owner=root mode=0600
# run Playbook
                    

[root@localhost ~]# ansible-playbook playbook_sample.yml 

PLAY [target_servers] **************************************************************

TASK [Gathering Facts] *************************************************************
ok: [192.168.1.123]
ok: [192.168.1.122]

TASK [Test Task] *******************************************************************
changed: [192.168.1.123]
changed: [192.168.1.122]

PLAY RECAP *************************************************************************
192.168.1.122              : ok=2    changed=1    unreachable=0    failed=0   
192.168.1.123              : ok=2    changed=1    unreachable=0    failed=0  

# confirm settings
[root@localhost ~]# ansible target_servers -m command -a "ls -l /home"
192.168.1.122 | SUCCESS | rc=0 >>
total 0
drwx------. 2 nice nice 62 May  4 23:52 nice
-rw-------. 1 root root  0 May  5 00:57 test.conf

192.168.1.123 | SUCCESS | rc=0 >>
total 0
drwx------. 2 nice nice 62 May  4 23:51 nice
-rw-------. 1 root root  0 May  5 00:57 test.conf

2、例：安装httpd服务

[root@localhost ~]# vi 2.yml 
- hosts: target_servers
# use priviledge (default : root)

  become: yes
# the way to use priviledge

  become_method: sudo
# define tasks

  tasks:
  - name: httpd is installed
    yum: name=httpd state=installed
  - name: httpd is running and enabled
    service: name=httpd state=started enabled=yes

[root@localhost ~]# ansible-playbook 2.yml --ask-become-pass 
SUDO password: 

PLAY [target_servers] **************************************************************

TASK [Gathering Facts] *************************************************************
ok: [192.168.1.123]
ok: [192.168.1.122]

TASK [httpd is installed] **********************************************************
changed: [192.168.1.122]
changed: [192.168.1.123]

TASK [httpd is running and enabled] ************************************************
changed: [192.168.1.123]
changed: [192.168.1.122]

PLAY RECAP *************************************************************************
192.168.1.122              : ok=3    changed=2    unreachable=0    failed=0   
192.168.1.123              : ok=3    changed=2    unreachable=0    failed=0   

[root@localhost ~]# ansible target_servers -m shell -a "/bin/systemctl status httpd |head -3" -b --ask-become-pass
SUDO password: 
192.168.1.122 | SUCCESS | rc=0 >>
● httpd.service - The Apache HTTP Server
   Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
   Active: active (running) since Sat 2018-05-05 00:44:51 CST; 3min 7s ago

192.168.1.123 | SUCCESS | rc=0 >>
● httpd.service - The Apache HTTP Server
   Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
   Active: active (running) since Sat 2018-05-05 00:44:52 CST; 3min 7s ago

3、例：使用变量安装包

[root@localhost ~]# vi 3.yml
- hosts: target_servers
  become: yes
  become_method: sudo
  tasks:
  - name: General packages are installed
    yum: name={{ item }} state=installed
    with_items:
      - vim-enhanced
      - wget
      - unzip
    tags: General_Packages

[root@localhost ~]# ansible-playbook 3.yml --ask-become-pass
SUDO password: 

PLAY [target_servers] *********************************************************************

TASK [Gathering Facts] ********************************************************************
ok: [192.168.1.123]
ok: [192.168.1.122]

TASK [General packages are installed] *****************************************************
changed: [192.168.1.123] => (item=[u'vim-enhanced', u'wget', u'unzip'])
changed: [192.168.1.122] => (item=[u'vim-enhanced', u'wget', u'unzip'])

PLAY RECAP ********************************************************************************
192.168.1.122              : ok=2    changed=1    unreachable=0    failed=0   
192.168.1.123              : ok=2    changed=1    unreachable=0    failed=0  

[root@localhost ~]# ansible target_servers -m shell -a "rpm -qa | grep -E 'vim-enhanced|wget|unzip'" --ask-become-pass 
SUDO password: 
 [WARNING]: Consider using yum, dnf or zypper module rather than running rpm

192.168.1.122 | SUCCESS | rc=0 >>
wget-1.14-15.el7_4.1.x86_64
vim-enhanced-7.4.160-2.el7.x86_64
unzip-6.0-16.el7.x86_64

192.168.1.123 | SUCCESS | rc=0 >>
wget-1.14-15.el7_4.1.x86_64
vim-enhanced-7.4.160-2.el7.x86_64
unzip-6.0-16.el7.x86_64

4、显示内容格式变换

[root@localhost ~]# ansible 192.168.1.122 -m setup 
192.168.1.122 | SUCCESS => {
    "ansible_facts": {
        "ansible_all_ipv4_addresses": [
            "192.168.1.122"
        ], 
        "ansible_all_ipv6_addresses": [
            "fe80::8568:bca8:555d:6f"
        ], 
        "ansible_apparmor": {
            "status": "disabled"
        }, 
        "ansible_architecture": "x86_64", 
        "ansible_bios_date": "05/19/2017", 
        "ansible_bios_version": "6.00", 
        "ansible_cmdline": {
            "BOOT_IMAGE": "/vmlinuz-3.10.0-693.el7.x86_64", 
            "LANG": "en_US.UTF-8", 
            "crashkernel": "auto", 
            "quiet": true, 
            "rd.lvm.lv": "centos/swap", 
            "rhgb": true, 
            "ro": true, 
            "root": "/dev/mapper/centos-root"
        }, 
······

[root@localhost ~]# vi 4.yml
- hosts: target_servers
  tasks:
  - name: Refer to Gathering Facts
    command: echo "{{ ansible_distribution }} {{ ansible_distribution_version }}"
    register: dist
  - debug: msg="{{ dist.stdout }}"

[root@localhost ~]# ansible-playbook 4.yml 

PLAY [target_servers] *********************************************************************

TASK [Gathering Facts] ********************************************************************
ok: [192.168.1.122]
ok: [192.168.1.123]

TASK [Refer to Gathering Facts] ***********************************************************
changed: [192.168.1.122]
changed: [192.168.1.123]

TASK [debug] ******************************************************************************
ok: [192.168.1.123] => {
    "msg": "CentOS 7.4.1708"
}
ok: [192.168.1.122] => {
    "msg": "CentOS 7.4.1708"
}

PLAY RECAP ********************************************************************************
192.168.1.122              : ok=3    changed=1    unreachable=0    failed=0   
192.168.1.123              : ok=3    changed=1    unreachable=0    failed=0   

5、

[root@localhost ~]# vi 5.yml

 # set boolean with failed_when
 # To use "when", "failed_when", it's possible to write branch condition in Ansible Playbook. 
# create "index.html" if result of boolean is "1"

- hosts: target_servers
  become: yes
  become_method: sudo
  tasks:
  - name: index file exists or not
    shell: test -f /var/www/html/index.html
    ignore_errors: true
    register: file_exists
    failed_when: file_exists.rc not in [0, 1]

  - name: put index.html
    shell: echo "httpd index" > /var/www/html/index.html
    when: file_exists.rc == 1


[root@localhost ~]# ansible-playbook 3.yml --ask-become-pass
SUDO password: 

PLAY [target_servers] ***************************************************************************************************************

TASK [Gathering Facts] **************************************************************************************************************
ok: [192.168.1.123]
ok: [192.168.1.122]

TASK [General packages are installed] ***********************************************************************************************
ok: [192.168.1.123] => (item=[u'vim-enhanced', u'wget', u'unzip'])
ok: [192.168.1.122] => (item=[u'vim-enhanced', u'wget', u'unzip'])

PLAY RECAP **************************************************************************************************************************
192.168.1.122              : ok=2    changed=0    unreachable=0    failed=0   
192.168.1.123              : ok=2    changed=0    unreachable=0    failed=0   

[root@localhost ~]# ansible-playbook 5.yml --ask-become-pass
SUDO password: 

PLAY [target_servers] ***************************************************************************************************************

TASK [Gathering Facts] **************************************************************************************************************
ok: [192.168.1.123]
ok: [192.168.1.122]

TASK [index file exists or not] *****************************************************************************************************
changed: [192.168.1.123]
changed: [192.168.1.122]

TASK [put index.html] ***************************************************************************************************************
changed: [192.168.1.123]
changed: [192.168.1.122]

PLAY RECAP **************************************************************************************************************************
192.168.1.122              : ok=3    changed=2    unreachable=0    failed=0   
192.168.1.123              : ok=3    changed=2    unreachable=0    failed=0   

6、

[root@localhost ~]# vi 6.yml
# To use "notify", "handlers", it's possible to execute a task which is defined in "handlers" after a task completed which has "notify" method. 

- hosts: target_servers
  become: yes
  become_method: sudo
  handlers:
  - name: restart sshd
    service: name=sshd state=restarted
  tasks:
  - name: edit sshd_config
    lineinfile: >
      dest=/etc/ssh/sshd_config
      regexp="{{ item.regexp }}"
      line="{{ item.line }}"
    with_items:
    - { regexp: '^#PermitRootLogin', line: 'PermitRootLogin no' }
    notify: restart sshd
    tags: Edit_sshd_config

[root@localhost ~]# ansible-playbook 6.yml --ask-become-pass
SUDO password: 

PLAY [target_servers] ***************************************************************************************************************

TASK [Gathering Facts] **************************************************************************************************************
ok: [192.168.1.123]
ok: [192.168.1.122]

TASK [edit sshd_config] *************************************************************************************************************
changed: [192.168.1.123] => (item={u'regexp': u'^#PermitRootLogin', u'line': u'PermitRootLogin no'})
changed: [192.168.1.122] => (item={u'regexp': u'^#PermitRootLogin', u'line': u'PermitRootLogin no'})

RUNNING HANDLER [restart sshd] ******************************************************************************************************
changed: [192.168.1.122]
changed: [192.168.1.123]

PLAY RECAP **************************************************************************************************************************
192.168.1.122              : ok=3    changed=2    unreachable=0    failed=0   
192.168.1.123              : ok=3    changed=2    unreachable=0    failed=0   

ad-hoc与playbook转换

eg：
ad-hoc:
ansible target_servers -m file -a "path=/testdir/testfile state=touch mode=0700"

playbook:
tasks:
- name: make testfile
  file:
    path: /testdir/testfile
    state: touch
    mode: 0700

export HADOOP_HOME=/usr/local/hadoop-2.8.3
export CLASSPATH=.:$HADOOP_HOME/lib:$CLASSPATH
export PATH=$PATH:$HADOOP_HOME/bin
export PATH=$PATH:$HADOOP_HOME/sbin
export HADOOP_MAPRED_HOME=$HADOOP_HOME
export HADOOP_COMMON_HOME=$HADOOP_HOME
export HADOOP_HDFS_HOME=$HADOOP_HOME
export YARN_HOME=$HADOOP_HOME
export HADOOP_ROOT_LOGGER=INFO,console
export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native
export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib"