python3学习手册 简介： Python官网： h�ps://www.python.org Python由Guido van Rossum于1989年底发明，于1991年发行第一版， Python源代码遵循GPL协议 Python是一种解释型、面向对象、动态数据类型、可交互的语言 python2.0于2000-10-16发布，于2020年1月1日停止更新2.x版本， Python-2.7成为最后一个py 7成为最后一个py 2.x版本 python3.0于2008-12-03发布 python各版本发布时间： 2.0.1 2001-06-22 3.7.0 2018-06-27 2.7.0 2010-07-03 3.8.0 2019-10-14 2.7.5 2013-05-15 3.9.0 2020-10-05 2.7.18 2020-04-20 3.9.16 2022-12-06 ★第0章、linux执行python脚本的方式 python安装路径： 操 作 系 统 python 版本 安装路径 windows 2.7 C:\Python27 windows 3.10 C:\Users\ 用 户 名 \AppData\Local\Programs\Python\Python310 centos7 2.7.5 /usr/bin/python --> /usr/bin/python2

#安装k8s二进制组件 （<=1.23版本） # systemctl enable kubelet # systemctl start kubelet ③k8s集群初始化 # kubeadm version #先查看k8s版本 # GitVersion:"v1.19.4" # kubeadm config images list #查看k8s其他组件的docker镜像名，默认用 7个镜像） ★直接使用命令行方式初始化集群 （以下是非HA模式的master初始化，如果要部署高可用集群，则参考第4章） kubeadm init --kubernetes- version=v1.19.4 \ --apiserver-adver�se- address=10.99.1.51 \ # api server地址 --pod-network-cidr=10.244 gpgkey=h�ps://mirrors.aliyun.com/docker-ce/linux/centos/gpg # yum install containerd.io -y # containerd --version #查看版本 containerd containerd.io 1.6.24 61f9fd88f79f081d64d6fa3bb1a0dc71ec870523 ★配置containerd服务

Dev/Test environments matched Prod. They fixed forward, but changes not put back into version control. Focused on version control and automated environment creation – time reduced from 8 weeks to 1 day b the system are shared in a version control repository ii. Version control is for everyone in the value stream iii. Everything, everything, everything is checked into version control 1. Application code includes pre-production and build processes 9. Tools iv. 2014 State of DevOps Report – use of version control by Ops was the highest predictor of both IT performance & organizational performance d

integrity and code signing – all contributors should have their own key and sign all commits to version control. All created packages should be signed and hash recorded for auditing h. ENSURE SECURITY certain types of test code) 4. Ensure every CI process is in an isolated container 5. Make the version control credentials of the CI system read-only 3. Ch. 23 – Protecting the Deployment Pipeline a demonstrate high success rates and low MTTR iii. Link and provide traceability from planning to version control to production implementation for visibility and auditing c. WHAT TO DO WHEN CHANGES ARE

| postgres=CTc/postgres postgres=# select version(); #查看版本号 version ----------------------------------------------------

★git命令行客户端安装及设置 # yum install git -y #自带光盘里有 # git --version #查看git软件版本 git version 2.39.1 ★全局设置 设置用户名和邮箱，只用于提交commit时做metadata信息，不用于身份验证 #全局设置信息保存在 ~/

51:6379> config get requirepass 1) "requirepass" 2) "Centos123" 10.99.1.51:6379> info # Server redis_version:6.2.13 ...... executable:/usr/local/bin/redis-server config_file:/root/redis-6.2.13/redis.conf .

long it takes for a new requirement to be delivered and deployed. Deployment speed: how fast a new version of the application can be deployed into the production environment. Deployment frequency: how often

soon even the network will be. Infrastructure can now be tested, like code; it can be placed in version control.  Technology matters: Most IT people are technologists; they need to work with technology