Ansible Tower01
文档：http://docs.ansible.com/ansible-tower/本文以Ansible-tower-3.1.2 OS为CentOS7.2为例。
一、安装前注意事项
[*] The Tower installer creates a self-signed SSL certificate and keyfile at /etc/tower/tower.cert and /etc/tower/tower.key for HTTPS communication. These can be replaced after install with your own custom SSL certificates if you desire, but the filenames are required to be the same.(如果需要替换之前的/etc/tower/tower.cert、/etc/tower/tower.key证书，需要保证替换之后的证书和之前的证书名称相同)
[*] If using Ansible version 1.8 or later, ensure that fact caching using Redis is not enabled in ansible.cfg on the Tower machine.(如果使用可执行版本1.8或更高版本，请确保在Ansible Tower上的ansible.cfg中未启用使用Redis的fact caching。)
[*] Note that the Tower installation must be run from an internet connected machine that can install software from trusted 3rd-party places such as Ansible’s software repository, and your OS vendor’s software repositories.(请注意，Tower安装必须通过互联网连接的机器运行，该机器可以从可靠的第三方场所安装软件，如Ansible的软件仓库和您的OS供应商的软件库。)
[*] (1)支持的操作系统：
Red Hat Enterprise Linux 7 64-bit
CentOS 7 64-bit
Ubuntu 14.04 LTS 64-bit
Ubuntu 16.04 LTS 64-bit
注意：Ansible Tower requires Red Hat Enterprise Linux 7.2 or later.
(2)最少2G内存，推荐4G+内存
(3)20 GB of dedicated hard disk space(20 GB专用硬盘空间)
10 GB of the 20 GB requirement must be dedicated to /var/, where Tower stores its files and working directories (dedicating less space will cause the installation to fail)
(4)64-bit support required (kernel and runtime)
二、安装过程
1.下载ansible tower
下载地址：http://releases.ansible.com/ansible-tower/setup/
含有安装包文件的版本：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 zxvf ansible-tower-setup-bundle-latest.el7.tar.gz
cd ansible-tower-setup-bundle-3.1.2-2.el7
2.安装ansible tower
a.设置主机信息
sed -i "s#admin_password=''#admin_password='123456'#g" inventory
sed -i "s#pg_host=''#pg_host='127.0.0.1'#g" inventory
sed -i "s#pg_port=''#pg_port='5432'#g" inventory
b.修改yum源(操作中并没有修改，原地址也挺快)
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
c.安装Ansible tower
#./setup.sh d.安装过程中遇到的问题
(1).在TASK 这一步会出现错误，提示信息是数据库连接不上
使用yum安装
yum install
http://download.postgresql.org/pub/repos/yum/9.4/redhat/rhel-7.2-x86_64/pgdg-redhat94-9.4-3.noarch.rpm
yum install postgresql94-server postgresql94-contrib
设置开机启动
systemctl enable postgresql-9.4.service
systemctl start postgresql-9.4.service
初始化数据库
/usr/pgsql-9.4/bin/postgresql94-setup initdb 启动postgresql
service postgresql-9.4 start 创建用户
su - postgres
-bash-4.2$ psql
postgres=# CREATE ROLE awx CREATEDB PASSWORD 'admin' LOGIN;
postgres=# \q
-bash-4.2$ 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
-bash-4.2$ psql -U awx -d postgres -h 127.0.0.1
postgres=# create database awx;
postgres=# \q
再次./setup.sh进行安装tower
(2).在TASK中fatal: : FAILED! => {"changed": false, "failed": true, "msg": "This machine does not have sufficient RAM to run Ansible Tower."}
解决方法：增加内存，至少2G
(3).在TASK中fatal: : FAILED! => {"changed": false, "failed": true, "msg": "Please set rabbitmq_password in the inventory file before running setup"}
解决方法：安装RabbitMQ，具体见《RabbitMQ01》。
三、Web配置
访问Web界面，http://192.168.1.34/#/
用户名/密码为admin/123456
导入license
没有的话，点击REQUEST LICENSE，去官方申请免费试用。
提交license，就进入了DASHBOARD页面。
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