Ansible-playbook's roles and include

Include:

In a large complex architecture, the first problem is the growing playbook file size, a large playbook difficult to understand and maintain, the end method is to use include, your plays break down into different segments and then include them in the other plays . Different segments are categorized according to different purposes. All are included in the main plays .

There are four types of inclusions:

1. Variable contains: allows you to place the variable in an external YAML file

Example:

Vars_files:-Vars.yml-vars1.yml

2.playbook contains: A large project can contain multiple plays

3. tasks include : Place tasks in normal files and include them when needed

Example:

Tasks:vars_files:-Vars.yml-vars1.yml-include:takes/foo.yml

4.handler contains: Allows you to put all handlers handlers in one place

Example:

Handlers:-Include:

Roles:

and if your playbook growth to include does not solve the problem, or you already have a huge number of templates, you might be able to use Roles up. It allows you to group files according to a defined format, essentially, it is an inclusion with some automation capabilities, androles can help you organize your database well.

Rolesallows you to add variables, files, tasks, templates,handlesput them in a folder and then include them. After establishing an effective dependency, you can alsoRolescontains a differentRoles. As with inclusions, you can pass variables toRoles. With these features, you can create a self-containedRolesand it's easy to share it with others.

· For example, to use the template module, to copy a file to the remote host, you need to put this file in the template directory

Example:

-name:copy httpd conf template:src httpd.confdest=/etc/http/httpd.conf owner=root group=root mode=0755

· For example, to use Copy module, copy a file to the remote host, you need to put this file in the Files directory

Example:

-Name Copy:src index.jsp dest=/data/www owner=root group=root mode=0755

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├── ansible.cfg├── group_vars│   └── all├── init.yml      #定义所有主机执行roles下的create-sudo-user├── inventory│   ├── test.ini│    └── test_public.ini├── main.yml├── README.md├── roles│   ├──  bamboo│   │   ├── files│   │   │    └── dataman-bamboo-0.9.0.tar.gz│   │   ├── tasks│    │   │   └── main.yml│   │   └──  templates│   │       ├── install.sh.j2│    │       └── supervisor-bamboo.j2│   ├──  chronos│   │   ├── tasks│   │   │    └── main.yml│   │   └── templates│   │       └──  supervisor-chronos.j2│   ├── common│   │   ├──  tasks│   │   │   └── main.yml│   │    └── templates│   │       ├──  dataman.repo.j2│   │       └── docker.j2│    ├── copy-authorized-key│   │   ├── files│   │    │   └── id_rsa_ansible.pub│   │   └──  tasks│   │       └── main.yml│    ├── create-sudo-user│   │   ├── files│   │    │   └── mesos│   │   └── tasks│   │        └── main.yml│   ├── marathon│   │   ├──  tasks│   │   │   └── main.yml│   │    └── templates│   │       ├──  hostname.j2│   │       ├── http_port.j2│    │       ├── master.j2│   │        └── zk.j2│   ├── mesos-master│   │    ├── tasks│   │   │   └── main.yml│    │   └── templates│   │       ├──  cluster.j2│   │       ├── hostname.j2│   │        ├── ip.j2│   │       ├── quorum.j2│    │       └── zk.j2│   ├── mesos-slave│    │   ├── tasks│   │   │    └── main.yml│   │   └── templates│   │        ├── hostname.j2│   │        ├── ip.j2│   │       └── zk.j2│    └── zookeeper│       ├── tasks│        │   └── main.yml│       └──  Templates│           ├── cloudera-cdh5.repo.j2│            ├── myid.j2│            └── zoo.cfg.j2├── test.json└── vagrantfile

This article is from the "Ming Linux blog" blog, be sure to keep this source http://zhaijunming5.blog.51cto.com/10668883/1715634

Ansible-playbook's roles and include