The Confession of op sauce since into the expensive circle, every day need a strong heart to maintain the chaos of the line, every day is the same as the Shell/python in papered fill hole ah, feel every day is in and if else deal with Ah, Every time you spend keywords script, the next time to point to new requirements, can reuse the part of the less to do not want to reuse, very desperate ah, there are wood. Batch Run tool or in Lhck lhcp, each time a long series of commands, all kinds of esc
I. Preparation of the first order
Ansible installation is complete, below learn how to use ansible.Just like learning a programming language, first write a Hello World sample program. We also write a ansible "Hello World":
Ansible 192.168.128.83-m Ping
This command means ping 192.168.128.83 through the admin hostThe "-M ping" in the command indicates that the pi
This is a creation in
Article, where the information may have evolved or changed.
Containers are an increasingly popular development environment. As a developer, you can choose from a variety of tools to manage your containers. This article will introduce you to Ansible Container and show you how to run and test your application in a similar production environment.
Entry
This example uses a simple Flask Hello world program. This program is served by A
into the machine, with "ssh ‘-o StrictHostKeyChecking=no [emailprotected]‘",and check in:.ssh/authorized_keysto make sure we haven‘t added extra keys that you weren‘t expecting.??[[emailprotected] ~]# sshpass -p123456 ssh-copy-id -i /root/.ssh/id_dsa.pub "-o StrictHostKeyChecking=no [emailprotected]"Now try logging into the machine, with "ssh ‘-o StrictHostKeyChecking=no [emailprotected]‘",and check in:.ssh/authorized_keysto make sure we haven‘t added extra keys that you weren‘t expecting.??[[e
Please be sure to keep the environment consistent
To download the required system packages during installation, be sure to connect all the nodes to the Internet .
Cluster node information for this installationLab environment: VMware's virtual machines
IP Address
Host name
CPU
Memory
192.168.77.133
K8s-m1
6 cores
6G
192.168.77.134
k8s-m2
6 cores
6G
192.168.77.135
The ansible only needs to be run on a common server and does not require the client to be installed on the managed server. Because it is SSH-based, the Linux server cannot be separated from SSH, so ansible does not need to add additional support for the configuration work. You can use ansible from the command line, the server running
In the field of automation operations, in addition to Saltstack, there are ansible this batch installation Deployment tool, in writing the specific content first, first of all I used two tools after the sentiment.Saltstack is the C/s framework, in order to install software in the client, and start the service to manage, ansible is connected via SSH to the client, that is, the key must be passed to the clien
First, Ansible Basic installationInstall RPM using Yum with epel6,7 and more. However, you must install Python2.4 or a later version of Python.Add Source:Wget-o/etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repoYum Install Ansible-ySecond, ansible configuration1. SSH face key login settings# #生成公钥/Private keySSH-KEYGEN-T RSASsh-copy-id-i ~/.ssh/
Tags: Linux automated operation and maintenance ansibleObjectiveThe development direction of operations, centralization, automation, standardization, virtualization, distributed.This article shows a tool for automating the development of operations: Ansible. Ansible has many advantages, only need ssh and Python can be used, do not need the client, powerful, module rich, easy to get started low threshold, ba
-- Ensure cannot be summarized by the PNG process of the PAC Jinjia experiment.
Roles introduction:
Ansible uses roles to organize playbooks in a hierarchical and structured manner ). Roles can automatically Load Variable files, tasks, and handlers according to the hierarchical structure. Simply put, roles places variables, files, tasks, modules, and processors in separate directories and easily include them, roles is generally used to build servi
Installation of AnsibleAnsible-Based on Python Paramiko development, distributed, no client, lightweight, configuration syntax using Ymal and JINJA2 template language, stronger remote commands to perform operations.Similar automated operations tools are commonly used in many other things:Puppet:-Based on Ruby development, with C/s architecture, strong extensibility, SSL-based, remote command execution is relatively weak.Saltstack:-Based on Python development, the C/S architecture, relatively pup
Playbook1 Playbook is a list consisting of one or more "play"The main function of 2 play is to dress up a pre-merged host into a role defined in advance by a task in ansible. Fundamentally, the so-called task is nothing more than a module that calls Ansible. Organize multiple play in a single playbook, which allows them to join together to sing a drama with a pre-programmed mechanism3 Playbook written in Ya
Ansible is based on modularity, with specific modules to complete specific tasksBased on the Python language implementation, implemented by three key modules of Paramiko, Pyyaml and JINJA2Simple deployment, agentless (no client deployment, client management via SSH protocol)Based on master-slave modeSupports custom modules (other programming language-written modules can also be called via Ansible interface)
Ansible Getting Started experience
What does Ansible do? Why does it need to be used in a distributed system?If I have a Java service a now, you can deploy only one server when the volume of traffic is small and availability requirements are not high. When service A to launch online, you can log in directly to the server to publish work. But because of the growth in business volume and the need for availab
Batch manage remote servers using AnsibleBackground
Local management of a batch of remote servers is required, mainly to execute the following tasks:
1) Copy local files to all remote servers;2) execute commands on the remote server;
The paths of the remote server are not completely consistent. Generally, access is performed through the variable paths defined in the environment variables;For example, define $ app_path =/opt/app/bin in. bashrc.
Finally, ansib
Ansible using advanced steps
Experimental Environment
Group: Srvs
Group member host name, system version, and IP
Node1 centos-7-core 172.16.253.184
node2 centos-7-core 172.16.254.89
node3 centos-7-core 172.16.253.47
Node4 Centos-6-core 172.16.253.30
iterative function of PlaybookSimple item to use
---
-hosts:srvs
remote_user:root
tasks:
-name:copy files
tags:copy
when:ansible_ Distribution_major_version = = "7"
copy:src=/root/
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.