tools used in In- frastructure as code (IaC). Therefore, we will go over a brief history of Infrastructure as code, then examine the tools that arose from the IaC paradigm. We will also discuss the most less” applies here. With IaC, you no longer need to hire at a “person per node” ratio. Removing the need for manual configuration frees up administrators to do other things. IaC gives you vastly more risk that could be introduced by human error, because all the nodes get the same configuration. As IaC grew in popularity, it helped drive the rise of the DevOps movement. Many new tools emerged as a result

requirements can be easily met. Infrastructure as Code (IaC) One very common practice teams adopt for their GitOps strategy is implementing IaC tooling and best practices. The process involves managing for rapid, repeatable, and error-free provisioning of infrastructure. Popular tooling to support IaC includes Terraform, Pulumi, Ansible, Salt, and Puppet. These tools provide the necessary capabilities Computing Akamai cloud computing makes it easy to get started with the IaC tools that are integral to GitOps. Get a jump start with our Try IaC ebook and on-demand course taught by Justin Mitchel from Coding

Kubernetes 对于应用开发复杂在哪里 1. 关注点不同 业务研发 2. 语义与抽象程度不同 业务运维 3. 交互与使用习惯不同 业务研发、运维 YAML 文件 图形化界面 命令行工具 IaC 配置语言 扩容策略 • 当 RT 上升 10% 时，自动扩容 100 个实例 发布策略 • 当金丝雀实例通过 99% 的测试时，按 每小时切 10% 流量 的节奏进行发布 YAML 文件

based on several core tenets: DECLARATIVE DESCRIPTION Thanks to modern Infrastructure as Code (IaC) and configuration management tools like Terraform, you can define, configure, and spin up your

provider, enabling users to deploy and manage SUSE Rancher using principles of Infrastructure as Code (IaC). Although not officially integrated with other solutions, SUSE Rancher's open API and use of containers

arpa/telnet.h, see the module source itself. The symbolic constants for the telnet commands are: IAC, DONT, DO, WONT, WILL, SE (Subnegotiation End), NOP (No Operation), DM (Data Mark), BRK (Break), IP available. Return '' if no cooked data available otherwise. Do not block unless in the midst of an IAC sequence. Telnet.read_eager() Read readily available data. Raise EOFError if connection closed and available. Return '' if no cooked data available otherwise. Do not block unless in the midst of an IAC sequence. Telnet.read_lazy() Process and return data already in the queues (lazy). Raise EOFError

arpa/telnet.h, see the module source itself. The symbolic constants for the telnet commands are: IAC, DONT, DO, WONT, WILL, SE (Subnegotiation End), NOP (No Operation), DM (Data Mark), BRK (Break), IP available. Return '' if no cooked data available otherwise. Do not block unless in the midst of an IAC sequence. Telnet.read_eager() Read readily available data. Raise EOFError if connection closed and available. Return '' if no cooked data available otherwise. Do not block unless in the midst of an IAC sequence. Telnet.read_lazy() Process and return data already in the queues (lazy). Raise EOFError

arpa/telnet.h, see the module source itself. The symbolic constants for the telnet commands are: IAC, DONT, DO, WONT, WILL, SE (Subnegotiation End), NOP (No Operation), DM (Data Mark), BRK (Break), IP available. Return '' if no cooked data available otherwise. Do not block unless in the midst of an IAC sequence. Telnet.read_eager() Read readily available data. Raise EOFError if connection closed and available. Return '' if no cooked data available otherwise. Do not block unless in the midst of an IAC sequence. Telnet.read_lazy() Process and return data already in the queues (lazy). Raise EOFError

选项对应的符号名遵循 arpa/telnet.h 中 的定义，但删除了前缀 “TELNET_“。对于不在 arpa/telnet.h 的选项的符号常量名，请参考本模块源码。 telnet 命令的符号常量名有：IAC, DONT, DO, WONT, WILL, SE (Subnegotiation End), NOP (No Operation), DM (Data Mark), BRK (Break), IP 如果连接关闭并且没有可用的熟数据，将会触发EOFError 。如果没有熟数据可用返回 b'' 。除非在 一个 IAC 序列的中间，否则不要阻塞。 Telnet.read_eager() 读取现成的数据。 如果连接关闭并且没有可用的熟数据，将会触发EOFError 。如果没有熟数据可用返回 b'' 。除非在 一个 IAC 序列的中间，否则不要阻塞。 Telnet.read_lazy() 处理并返回已经在队列中的数据（lazy）。 处理并返回已经在队列中的数据（lazy）。 如果连接已关闭并且没有可用的数据，将会触发EOFError 。如果没有熟数据可用则返回 b'' 。除非 在一个 IAC 序列的中间，否则不要进行阻塞。 Telnet.read_very_lazy() 返回熟数据队列任何可用的数据（very lazy）。 如果连接已关闭并且没有可用的数据，将会触发EOFError 。如果没有熟数据可用则返回 b'' 。该方 法永远不会阻塞。

选项对应的符号名遵循 arpa/telnet.h 中 的定义，但删除了前缀 “TELNET_“。对于不在 arpa/telnet.h 的选项的符号常量名，请参考本模块源码。 telnet 命令的符号常量名有：IAC, DONT, DO, WONT, WILL, SE (Subnegotiation End), NOP (No Operation), DM (Data Mark), BRK (Break), IP 如果连接关闭并且没有可用的熟数据，将会触发EOFError 。如果没有熟数据可用返回 b'' 。除非在 一个 IAC 序列的中间，否则不要阻塞。 Telnet.read_eager() 读取现成的数据。 如果连接关闭并且没有可用的熟数据，将会触发EOFError 。如果没有熟数据可用返回 b'' 。除非在 一个 IAC 序列的中间，否则不要阻塞。 Telnet.read_lazy() 处理并返回已经在队列中的数据（lazy）。 处理并返回已经在队列中的数据（lazy）。 如果连接已关闭并且没有可用的数据，将会触发EOFError 。如果没有熟数据可用则返回 b'' 。除非 在一个 IAC 序列的中间，否则不要进行阻塞。 Telnet.read_very_lazy() 返回熟数据队列任何可用的数据（very lazy）。 如果连接已关闭并且没有可用的数据，将会触发EOFError 。如果没有熟数据可用则返回 b'' 。该方 法永远不会阻塞。