Ansible Tower系列 二（安装 Tower）

文档：http://docs.ansible.com/ansible-tower/

安装前检查

---

1. python版本为2.6
2. 保持网络畅通
3. 内存预留充足
4. 安装用户为root

软件下载

---

下载地址：http://releases.ansible.com/ansible-tower/setup/
含有包文件的版本：http://releases.ansible.com/ansible-tower/setup-bundle/

wget http://releases.ansible.com/ansible-tower/setup-bundle/ansible-tower-setup-bundle-latest.el6.tar.gz

tar zxf ansible-tower-setup-bundle-latest.el6.tar.gz
cd ansible-tower-setup-bundle-3.0.3-1.el6/

部署

---

设置主机信息

sed -i "s#password=''#password='admin'#g" inventory
sed -i "s#host=''#host='127.0.0.1'#g" inventory 
sed -i "s#port=''#port='5432'#g" inventory 

修改yum源

sed -i 's#dl.fedoraproject.org/pub#mirrors.ustc.edu.cn#g' roles/packages_el/defaults/main.yml
sed -i 's/#baseurl=/baseurl=/g' roles/packages_el/files/epel-6.repo
sed -i 's/mirrorlist=/#mirrorlist=/g' roles/packages_el/files/epel-6.repo
sed -i 's#download.fedoraproject.org/pub#mirrors.ustc.edu.cn#g' roles/packages_el/files/epel-6.repo

yum -y install centos-release-scl-rh centos-release-scl
sed -i 's#mirror.centos.org#centos.ustc.edu.cn#g' /etc/yum.repos.d/CentOS-SCLo-scl.repo
sed -i 's#mirror.centos.org#centos.ustc.edu.cn#g' /etc/yum.repos.d/CentOS-SCLo-scl-rh.repo
yum -y install supervisor

安装ansible

./setup.sh

在
TASK [awx_install : Migrate the Tower database schema (may take awhile when upgrading).] ***
这一步会出现错误，提示信息是数据库连接不上

启动postgresql

service postgresql-9.4 initdb
service postgresql-9.4 start

创建用户

su - postgres
psql
CREATE ROLE awx CREATEDB PASSWORD 'admin' LOGIN; 
\q

sed -i 's#peer#md5#g' /var/lib/pgsql/9.4/data/pg_hba.conf
sed -i 's#ident#md5#g' /var/lib/pgsql/9.4/data/pg_hba.conf
service postgresql-9.4 restart

测试awx用户连接，输入密码连接，并创建数据库

psql -U awx -d postgres -h 127.0.0.1
create database awx;
\q

再次./setup.sh进行安装tower

Web配置

---

访问web页面

https://192.168.77.128/#/

Paste_Image.png

用户名/密码为admin admin

导入license
没有的话，点击REQUEST LICENSE，去官方申请免费试用。

Paste_Image.png

提交license后，就进入了DASHBOARD页面啦

Paste_Image.png

Tower无限hosts的License修改

---

仅供实验测试使用，切勿挪作他用。

下载反编译工具： http://sourceforge.net/projects/easypythondecompiler/

反编译task_engine.pyc文件

find / -name task_engine.pyc
/var/lib/awx/venv/tower/lib/python2.7/site-packages/awx/main/task_engine.pyc

Paste_Image.png

反编译后的文件为task_engine.pyc_dis，文件重命名为task_engine.py

修改内容

89行和186行代码
available_instances = int(self.attributes['instance_count']) 为
available_instances = 10000

Paste_Image.png

Paste_Image.png

247行代码，把相应的功能由False改为True

Paste_Image.png

删除task_engine.pyc task_engine.pyo ，将修改后的task_engine.py文件上传到tower上，重启tower服务

rm -f  /var/lib/awx/venv/tower/lib/python2.7/site-packages/awx/main/task_engine.py*
cp task_engine.py /var/lib/awx/venv/tower/lib/python2.7/site-packages/awx/main/
ansible-tower-service restart

查看license信息

Paste_Image.png

安装时遇到的错误

---

fatal: [localhost]: FAILED! => {"changed": false, "failed": true, "msg": "This machine does not have sufficient RAM to run Ansible Tower."}

解决：机器内存不足，增加内存

fatal: [localhost]: FAILED! => {"changed": false, "failed": true, "msg": "no service or tool found for: supervisord"}

解决：yum -y install supervisor

出现Is the server running on host \"localhost\" (127.0.0.1) and accepting\n\tTCP/IP connections on port 5432?

是postgresql服务没启动

service postgresql-9.4 initdb
service postgresql-9.4 start

# 创建用户
su - postgres
psql
CREATE ROLE awx CREATEDB PASSWORD 'admin' LOGIN; 
\q
exit

sed -i 's#peer#md5#g' /var/lib/pgsql/9.4/data/pg_hba.conf
sed -i 's#ident#md5#g' /var/lib/pgsql/9.4/data/pg_hba.conf
service postgresql-9.4 restart

# 测试awx用户连接，输入密码连接，并创建数据库
psql -U awx -d postgres -h 127.0.0.1
create database awx;
\q

---

更多文章请看 Ansible 专题文章总览