Speaking of variables, the variables in ansible are almost the same as those in the pillar + grains in the salt-stack.
The main sources of variables in ansible are as follows:
Inventory (host vars, group vars)
Playbook
Command Line
The Playbook generates results during task execution. It can be register and used as a variable for the following task.
Roles
Facts from nodes
These types of variables, 1
Ansible @ an efficient configuration management tool-Ansible configure management-translation (10), ansible-ansibleNo written permission. Do not reprint it
Custom ModulesUntil now we have been working solely with the tools provided to us by Ansible.This does afford us a lot of power, and make many things possible. However, if youhave something particularly compl
Ansible @ an efficient configuration management tool-Ansible configure management-translation (4), ansible-ansibleDo not reprint without written permission
Due to the long content in Chapter 3, I will divide it into several parts for translation.
Advanced PlaybooksSo far the playbooks that we have looked at are simple and just run a number ofmodules in order.
Ansible @ an efficient configuration management tool-Ansible configure management-translation (8), ansible-ansibleIf you do not have written authorization, do not repeat Chapter 4. Use of Ansible in large projects
RolesIf your playbooks start expanding beyond what includes can help you solve, or youstart gathering a l
Ansible @ an efficient configuration management tool-Ansible configure management-translation (5), ansible-ansibleDo not reprint advanced Playbook without written permission
Extra variablesYou may have seen in our template example in the previous chapter that we used avariable called group_names . This is one of the magic variables that are provided byAnsible it
Group: group that defines the file/directory
Mode: Permission for defining files/Directories
Owner: owner of the definition file/directory
Path: required. It defines the path of the file/directory.
Recurse: recursively sets the attributes of a file, which is only valid for directories.
Src: the source file path to be linked. It is only applicable when state = link.
Dest: the link path. It is only used when state = link is used.
State:
Directory: If t
established via ansible is normal. Now you can try to add some data to the MySQL master server to see if it will sync synchronously from the server.Manage MySQL replication with Ansible playbooksIt is not easy to use module commands by using Ansible's Ad-hoc command-line directives, but we still have to do a lot of things manually, such as installing MySQL, configuring the MySQL replication environment, an
1.ansible IntroductionAnsible is an automated operations tools, based on the development of Python, the collection of the advantages of many operations tools (puppet,cfengine,chef,func,fabric), the implementation of batch system configuration, batch program deployment, batch Run command and other functions.Ansible is a module-based operation and does not have the capacity to deploy in bulk. The real batch deployment is the module that
handlers task, 6-I inventory: Specifies the inventory file to be read, 7 -- list-tags: lists all available tags, 8 -- list-tasks: list all tasks to be executed; 9 -- skip-tags = skip_tags: Skip the specified tags task; 10 -- start-at-task = start_at_task: Start from the number of tasks; 11 -- step: gradually execute the definition of playbook After manual confirmation, run the next task. 12 -- syntax-check: Check the syntax in the playbook. 13-T tags
documentation for the specified moduleUse of the seven Ansible playbookThe equivalent of writing the module to the configuration file,Example 1:VI/ETC/ANSIBLE/TEST.YML//Add the following:---- hosts: lvlinux-2 remote_user: root tasks: - name: test_playbook shell: touch /tmp/lvlinux.txtNote: The first line needs to have three bars, the hosts parameter specifies which hosts to participate in, if mor
Tags: adding automatic sys wildcard Communication 1.9 instruction item otherAnsible is a relatively new automated operations tools, based on Python development, the collection of many operations tools (puppet, Cfengine, Chef, func, fabric) The advantages of the implementation of batch system configuration, batch program deployment, batch Run command and other functions.Ansible is a module-based operation and does not have the capacity to deploy in bulk. The real batch deployment is the module th
If there is no written authorization, please do not reprint the fifth chapter of your own definition moduleExternal Inventoriesin The first chapter we saw how Ansible needs an inventory file, so that it knowswhere it hosts is a nd how to access them. Ansible also allows you to specify Ascript this allows you to fetch the inventory from another source. Externalinv
you can start after installationDownload ansible:
Https://pypi.python.org/pypi/ansibleHttp://pkgs.org/download/ansibleHttps://pypi.python.org/packages/source/a/ansible/ansible-2.0.1.0.tar.gzFirst, compile and install Ansible1, install the dependency pack:
Yum install python-jinja2 pyyaml python-paramiko python-babel python-crypto pip* gcc python-develWget-p/us
:::* LISTEN 32212/httpdFinally, you can see that the remote host's HTTPD service listener's port has become 808.VARs variable
Using variables in playbook, you can directly define variables directly in the playbook, or you can define variables in other templates and drink them in the playbook file.
In the following example, add the VARs variable to the file in Httpd.yml[[emailprotected] ansible]# cat httpd.yml - hosts: webservs remote_us
Introduction of Ansible
1.ansible
Ansible is a new automated operational tools, based on Python research and development. Combines the advantages of many old operational tools to achieve the bulk operating system configuration, batch program deployment, batch operation commands and other functions. Only the Ansible p
the modules run by Ansible. In short, Ansible is based on "modules" to accomplish various "tasks". Its basic framework structure is as follows.The Ansible basic framework consists of six parts:Host Inventory hosts checklist: Used to define the hosts managed by Ansible, by default in AnsibleHosts are defined in the hos
Sesame HTTP: Ansible extension and sesame ansible ExtensionIntroduction to Ansible
Ansible is an O M tool developed by Python. Because work requires access to Ansible, it often integrates some things into Ansible, so it is more
I. Introduction of Ansible1 , IntroductionAnsible is a new automated operation tools, based on Python development, the collection of a number of operations tools (puppet, Cfengine, Chef, func, fabric) The advantages of the implementation of batch system configuration, batch program deployment, batch Run command and other functions. Ansible is a module-based operation and does not have the capacity to deploy in bulk. The real batch deployment is the mo
Automated Batch Deployment Tool Ansible notes Ansible installation and inventory filesI. Introduction of AnsibleAnsible is an automated operation and maintenance Deployment tool, and Saltstack,pupet, and so on, Ansible does not adopt the C/s architecture, that is, there is no client and server points. This means that the installation of
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