## Containers and BPF: twagent story Andrey Ignatov, Facebook eBPF Summit ## twagent • a daemon - runs on every Facebook server • manages all Facebook containers - a part of the bigger TW system

## A Multithreaded, Transaction-Based Locking Strategy for Containers Bob Steagall CppCon 2020 KEWB COMPUTING ## Overview • Sharing a container among multiple threads • A motivating problem • Some required • Every message input requires a write operation to the history • Which uses one or more containers ## Motivating Problem – Reactive Message Processor ![Image](/uploads/documents/9/0/0/c/900c7a required • Every message input requires a write operation to a container • Which uses one or more containers ## • It must scale to multiple threads! ## Motivating Problem – Reactive Message Processor !

Production 7. Advanced Topics 8. Introducing Spring Boot 9. System Requirements - Servlet Containers 10. Installing Spring Boot - Installation Instructions for the Java Developer - Servlets, Filters, and listeners The ServletWebServerApplicationContext Customizing Embedded Servlet Containers Programmatic Customization Customizing ConfigurableServletWebServerFactory Directly JSP Limitations Traditional Deployment Create a Deployable War File Create a Deployable War File for Older Servlet Containers Convert an Existing Application to Spring Boot Deploying a WAR to WebLogic Deploying a WAR in

. 7 4.1. Introducing Spring Boot ..... 7 4.2. System Requirements ..... 7 4.2.1. Servlet Containers ..... 7 4.2.2. GraalVM Native Images ..... 8 4.3. Installing Spring Boot ..... 8 4.3.1. Installation 2. Service Connections ..... 229 7.10.3. Custom Images ..... 230 7.10.4. Skipping Specific Containers ..... 231 7.10.5. Using a Specific Compose File ..... 231 7.10.6. Waiting for Container Readiness Initialization 290 The ServletWebServerApplicationContext 291 Customizing Embedded Servlet Containers 292 JSP Limitations 297 8.2. Reactive Web Applications 297 8.2.1. The "Spring WebFlux

..... 9 8. Introducing Spring Boot ..... 10 9. System Requirements ..... 11 9.1. Servlet containers ..... 11 10. Installing Spring Boot ..... 12 10.1. Installation instructions for the Java developer listeners ..... 90 The EmbeddedWebApplicationContext ..... 90 Customizing embedded servlet containers ..... 91 Programmatic customization ..... 91 Customizing Configurable Embedded Servlet Container 246 72.8. Discover built-in options for external properties ..... 247 73. Embedded servlet containers ..... 248 73.1. Add a Servlet, Filter or Listener to an application ..... 248 Add a Servlet

II. Getting started … 9 Introducing Spring Boot … 10 System Requirements … 11 9.1. Servlet containers … 11 Installing Spring Boot … 12 10.1. Installation instructions for the Java developer … 12 Filters, and listeners ... 90 The EmbeddedWebApplicationContext ... 90 Customizing embedded servlet containers ... 91 Programmatic customization … 91 Customizing ConfigurableEmbeddedServletContainer directly environment … 246 72.8. Discover built-in options for external properties … 247 Embedded servlet containers … 248 73.1. Add a Servlet, Filter or Listener to an application … 248 Add a Servlet, Filter or

..... 9 8. Introducing Spring Boot ..... 10 9. System Requirements ..... 11 9.1. Servlet containers ..... 11 10. Installing Spring Boot ..... 12 10.1. Installation instructions for the Java developer listeners ..... 90 The EmbeddedWebApplicationContext ..... 90 Customizing embedded servlet containers ..... 91 Programmatic customization ..... 91 Customizing Configurable Embedded Servlet Container 246 72.8. Discover built-in options for external properties ..... 247 73. Embedded servlet containers ..... 248 73.1. Add a Servlet, Filter or Listener to an application ..... 248 Add a Servlet

Cofounder & CTO; Kata Containers arch committee Hyper.sh 的一些开源项目(Go) Hyperd + runV + hyperstart Hypernetes & frakti Hyper.sh 主要参与/贡献的一些开源项目 Java: Hadoop HDFS Kata Containers 语言背景 Golang: hyper runV 由 Hyper.sh 开发，始于2015年，并有 Huawei, ARM, IBM 等公司参与 2017年12月，Hyper和Intel宣布，runV与Clear Containers合并成为 Kata Containers项目，并由OpenStack Foundation管理 runV / kata 使用 hypervisor 提供容器间的隔离，并可以以百毫秒级别的时间启动容器 Secure

. 7 4.1. Introducing Spring Boot ..... 7 4.2. System Requirements ..... 7 4.2.1. Servlet Containers ..... 7 4.3. Installing Spring Boot ..... 8 4.3.1. Installation Instructions for the Java Developer 192 The ServletWebServerApplicationContext ..... 193 Customizing Embedded Servlet Containers ..... 194 JSP Limitations ..... 197 8.2. Reactive Web Applications ..... 197 8.2 Servlet Web Applications: Spring MVC, Jersey, Embedded Servlet Containers • Reactive Web Applications: Spring Webflux, Embedded Servlet Containers • Graceful Shutdown: Graceful Shutdown • Spring Security:

. 7 4.1. Introducing Spring Boot ..... 7 4.2. System Requirements ..... 7 4.2.1. Servlet Containers ..... 7 4.2.2. GraalVM Native Images ..... 8 4.3. Installing Spring Boot ..... 8 4.3.1. Installation 2. Service Connections ..... 227 7.10.3. Custom Images ..... 228 7.10.4. Skipping Specific Containers ..... 229 7.10.5. Using a Specific Compose File ..... 229 7.10.6. Waiting for Container Readiness Initialization 288 The ServletWebServerApplicationContext 289 Customizing Embedded Servlet Containers 290 JSP Limitations 295 8.2. Reactive Web Applications 295 8.2.1. The "Spring WebFlux