Ansible Problems
Developed based on paramiko. What is this paramiko? It is a python-Only SSH protocol library. Therefore, fabric and ansible do not need to install client/agents on a remote host because they communicate with remote hosts Based on SSH.
The inventory file is used to define the host to be managed. The default location is/etc/ansible/hosts.
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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
First, IntroductionAnsible, an open source platform for integrated IT system configuration management, application deployment, and execution-specific tasks, is a project owned by Ansibleworks Company, founded in 2012 by the authors of Cobbler and Func.Ansible is based on the Python language, and is built from two key modules of Paramiko and Pyyaml.Ansible Features:>> deployment is simple, just deploy the Ansible environment on the host side, and no ac
Common ansible Commands
Use Ansible-doc-l to see how specific modules are used, here are examples of common ansible simple usage Execution system commands
[Root@ansible ~]# ansible pinpoint-m shell-a ' hostname '-o # Execute system command
192.168.0.102 | SUCCESS | rc=0 |
Ansible automated O M tool learning Manual
1. Introduction to ansibleCommon automated O M tools
Puppet-developed based on Ruby and adopts a C/S architecture. It is highly scalable and SSL-based, and remote command execution is relatively weak.SaltStack-developed based on Python and adopts the C/S architecture. It is more lightweight than puppet. The configuration syntax uses YMAL to make the configuration script simpler.
Ansible is an automated operations tools, based on the development of Python, 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 capability that does not have the ability to deploy in batches. The real batch deployment is the module that
1th ChapterThinking1.1How to use one clickAnsibleBuild1.1.1First Step goalThe first thing we want to make clear is that we need to implement a one-click Automation script that executes a script and then automates the installation of Nfs+rsync+sersync andthen lets web01 automatically mount the NFS shared directory. 1.1.2Second step relationship clear and sequentialNow that we have a goal, what we need to do is we need to understand the sequencing of automated installations.
since we n
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
Recently, I am entangled in how to choose from Puppet, Chef, SaltStack, Ansible, and other configuration management tools. Considering that the changes are a lot of troubles once they are not selected at the beginning, it is a little cautious.
I have used Puppet and SaltStack, but it is not exactly as expected, so we should first exclude it. As for Chef, although I have heard of it for a long time, I have never found a chance to try it. After reading
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
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
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
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