and then testing to ensure they operate as expected iv. Great Amazon Reboot of 2014 – 10% of Amazon EC2 servers had to reboot for Xen emergency security patch. At Netflix, zero downtime, no one actively tests 1. Static Analysis – inspect program code for all possible run-time behaviors and seek out coding flaws, back doors, and potentially malicious code2. Dynamic Analysis – tests executed while a program

containerd --version #查看版本 containerd containerd.io 1.6.24 61f9fd88f79f081d64d6fa3bb1a0dc71ec870523 ★配置containerd服务 # mkdir -p /etc/containerd # containerd config default > /etc/containerd/config 99.1.54:6443 --token abcdef.0123456789abcdef \ --discovery-token-ca-cert-hash sha256:63b5f34842ec20db12f19f6f4ca535b03e498e95842b97b452a04f9dc94b1151 \ --control-plane --cer�ficate-key 9b7764380 99.1.54:6443 --token abcdef.0123456789abcdef \ --discovery-token-ca-cert-hash sha256:63b5f34842ec20db12f19f6f4ca535b03e498e95842b97b452a04f9dc94b1151 # mkdir ~/.kube # cp /etc/kubernetes/admin

/usr/bin/env python3 # coding=u�-8 print("hello world") # chmod +x test.py #添加可执行权限 # python3脚本文件开头位置要指定以下2行（使用的python解释器及本 源码文件编码） #!/usr/bin/env python3 # coding=u�-8 # python2脚本文件里要指定以下2行 python2脚本文件里要指定以下2行 #!/usr/bin/env python # -*- coding: u�-8 -*- # ./test.py #执行脚本 #或者 # python3 test.py ★第1章、PyCharm常用设置 PyCharm官网： h�ps://www.jetbrains.com/pycharm/download/ "str" ，而在py3中使用print("str")函数 ②py3的/除法为float除法，不是整除，而py2中/表示整除 ③py2的源码文件默认使用ascii编码，除非指定了 # -*- coding: u�-8 - *-，py3源码文件默认使用u�8编码 若要在py2中也使用py3中的这些特性，可以导入名为 __future__ 的 包，导入后，py2会启导入的功能使得也支持py3的这些特性。同时py2

the company’s IT systems makes Fowler’s strangler pattern into an IT strategy rather than just a coding tactic. If you missed last month, you can find this on the Agile4Defense GitHub page at: https://git