1, 初级版: 安装启动 cloudera manager

1, 项目地址: 具体playbook内容

文件都是空的(rpm包，parcel包，tar包…)
https://github.com/eaglesinchina/devops/tree/master/ansible-cdh-el7-playbook2

2, 规划概览

a, 服务拆分：多个小角色

b, 目录结构，使用帮助

[root@c7 roles]# tree
.
├── cdh-agent
│   ├── files
│   │   └── cdh
│   ├── handlers
│   │   └── main.yml
│   └── tasks
│       └── main.yml
├── cdh-server
│   ├── files
│   │   ├── my.cnf
│   │   ├── mysql-rpms
│   │   │   ├── MySQL-server-5.5.62-1.el7.x86_64.rpm
│   │   │   ├── net-tools-2.0-0.25.20131004git.el7.x86_64.rpm
│   │   │   └── perl-Data-Dumper-2.145-3.el7.x86_64.rpm...........
│   │   ├── parcels
│   │   │   ├── CDH-5.12.2-1.cdh5.12.2.p0.4-el7.parcel
│   │   │   ├── CDH-5.12.2-1.cdh5.12.2.p0.4-el7.parcel.sha
│   │   │   └── manifest.json
│   │   └── scripts
│   │       ├── cdh
│   │       ├── kill_supervisor.sh
│   │       └── mysql_cdh_init.sh
│   ├── handlers
│   │   └── main.yml
│   ├── tasks
│   │   └── main.yml
│   └── templates
│       └── my.cnf
└── common
    ├── files
    │   ├── cdh-packs
    │   │   ├── cloudera-manager-centos7-cm5.12.2_x86_64.tar.gz
    │   │   └── jdk-8u211-linux-x64.rpm
    │   ├── hosts
    │   ├── jars
    │   │   ├── mssql-jdbc-7.2.1.jre8.jar
    │   │   ├── mysql-connector-java.jar
    │   │   └── ojdbc6.jar
    │   ├── rpm-deps
    │   │   ├── perl-parent-0.225-244.el7.noarch.rpm
    │   │   ├── perl-PathTools-3.40-5.el7.x86_64.rpm
    │   │   ├── sshpass-1.06-1.el6.x86_64.rpm
    │   │   └── zlib-devel-1.2.7-18.el7.x86_64.rpm...........
    │   └── sys_env.sh
    ├── handlers
    │   └── main.yml
    ├── tasks
    │   └── main.yml
    └── templates

20 directories, 119 files


[vagrant@c7 ansible-cdh-el7-playbook]$ cat help.txt                                                                     
#1, 修改三个配置(hosts:集群角色分配,  hosts-cdh:集群的主机名ip映射,  group_vars/all:设置cdh-master的ip                                         
[root@test-c6 ansible-cdh-el6-playbook]# cat hosts                                                                      
[cdh-server]                                                                                                            
server  ansible_host=192.168.56.161 ansible_port=22 ansible_ssh_user=root ansible_ssh_pass=vagrant                      
[cdh-agent]                                                                                                             
agent1   ansible_host=192.168.56.162 ansible_port=22 ansible_ssh_user=root ansible_ssh_pass=vagrant                     
agent2   ansible_host=192.168.56.160 ansible_port=22 ansible_ssh_user=root ansible_ssh_pass=vagrant                     
                                                                                                                        
[root@test-c6 ansible-cdh-el6-playbook]# cat hosts-cdh                                                                  
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4                                          
192.168.56.160 c6 cdh-server                                                                                            
192.168.56.161 test-c6 cdh-agent1                                                                                       
192.168.56.162 test-c62 cdh-agent2                                                                                      
                                                                                                                        
[root@test-c6 ansible-cdh-el6-playbook]# cat group_vars/all                                                             
cdh_server_ip: 192.168.56.161                                                                                           
                                                                                                                        
#2, 开始安装: ansible环境准备（控制机上安装ansible), 安装cdh                                                                             
./install.sh                                                                                                            

3, 具体操作内容

#1, 准备ansible-playbook目录结构
mkdir roles group_vars  
touch site.yml hosts    
mkdir roles/{
    comm,server,agent}

mkdir roles/comm/{
    files,handlers,tasks,templates}
touch roles/comm/{
    tasks,handlers}/main.yml

mkdir roles/cdh-server/{
    files,handlers,tasks,templates}
touch roles/cdh-server/{
    tasks,handlers}/main.yml

mkdir roles/cdh-agent/{
    files,handlers,tasks,templates}
touch roles/cdh-agent/{
    tasks,handlers}/main.yml

#2, 配置cdh 的/etc/hosts文件
[vagrant@c7 ansible-cdh-el7-playbook]$ cat roles/common/files/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
192.168.56.170 c7
192.168.56.171 test-c7

#3, 为了便于管理这个CDH集群的/etc/hosts文件，建立软连接
[vagrant@c7 ansible-cdh-el7-playbook]$ ln -sf roles/common/files/hosts hosts-cdh
[vagrant@c7 ansible-cdh-el7-playbook]$ ls -lF
total 31728
-rw-r--r--. 1 vagrant vagrant 32471040 May 14 11:46 ansible7.tar
drwxr-xr-x. 2 vagrant vagrant       17 May 14 15:42 group_vars/
-rw-rw-r--. 1 vagrant vagrant      919 May 14 10:39 help.txt
-rw-r--r--. 1 vagrant vagrant      225 May 14 11:57 hosts
lrwxrwxrwx. 1 vagrant vagrant       24 May 14 16:08 hosts-cdh -> roles/common/files/hosts
-rwxr-xr-x. 1 vagrant vagrant     1990 May 14 14:27 install.sh*
drwxr-xr-x. 5 vagrant vagrant       55 May 13 15:14 roles/
drwxr-xr-x. 2 vagrant vagrant      187 May 14 11:48 selinux-py-packs/
-rw-r--r--. 1 vagrant vagrant      147 May 13 18:05 site.yml

#4, 关键文件
[vagrant@c7 ansible-cdh-el7-playbook]$ cat group_vars/all                                       
cdh_server_ip: 192.168.56.171                                                                   
[vagrant@c7 ansible-cdh-el7-playbook]$ cat site.yml                                             
---                                                                                                                                                                                          
- hosts: all                                                                                    
  roles:                                                                                        
  - common                                                                                      
                                                                                                                                                                                               
- hosts: cdh-server                                                                             
  roles:                                                                                        
  - cdh-server                                                                                  
                                                                                                
- hosts: cdh-agent                                                                              
  roles:                                                                                        
  - cdh-agent                                                                                   
  tags: agentstart                                                                              

2, 高级版: 安装启动 cdh+ cloudera manager

参考：https://github.com/cloudera/cloudera-playbook
注意： 此playbook在CentOS6上会报错：template error while templating string: no filter named ‘map’
报错原因： 此功能有jinja2.7以上版本提供，而centos6上的版本为jinja2.6
解决办法： 更换ansible控制机为Centos7 ，或者修改scm, cdh 的相应playbook内容

roles/cdh/tasks/main.yml:39
fatal: [192.168.56.201]: FAILED! => {
    "msg": "template error while templating string: no filter named 'map'. String: {
    { manifests.results | map(attribute='json') | list | json_query('[*].parcels[0].parcelName') | map('regex_replace', '-[a-z0-9]+.parcel$','') | list }}"}

1, 项目地址 (修改错误，并能在centos6运行)：

https://github.com/eaglesinchina/devops/tree/master/ansible-cdh-el6-playbook2

2, ansible-playbook运行截图

3, cloudera manage 和cdh集群截图