OpenResty XRay Jun 28, 2023

OpenResty XRay Updated Jun 28, 2023 11 mins read

Tracing the Slowest PCRE Regular Expressions in OpenResty or Nginx Processes

• System Environment
• Narrowing Down the Culprit without Guessing
• Limiting the execution overhead of PCRE
• Non-Backtracking Regular Expression Engines
• Lua’s Builtin Patterns
• Tracing Applications inside Containers
• How The Tools are Implemented
• The Overhead of the Tools

OpenResty XRay Apr 10, 2024

OpenResty XRay Updated Apr 10, 2024 9 mins read

Listing Loaded Lua Modules in OpenResty or Nginx Processes

• System Environment
• Names of Loaded Lua Modules
• Running Directly in the Web Console
• Tracing Applications inside Containers
• How The Tools are Implemented
• The Overhead of the Tools

OpenResty XRay Apr 10, 2024

OpenResty XRay Updated Apr 10, 2024 12 mins read

Analyzing the Most CPU-Consuming Requests in OpenResty or Nginx

• System Environment
• CPU-Hottest Request Hostnames
• CPU-Hottest Request URIs
• Digging Deeper
• Running Directly in the Web Console
• Tracing Applications inside Containers
• How The Tools are Implemented
• The Overhead of the Tools

OpenResety Edge Nov 1, 2023

OpenResety Edge Updated Nov 1, 2023 5 mins read

Configure HTTP basic auth in OpenResty Edge

• Configure the HTTP basic auth credentials for applications
  • Add a basic auth user group
  • Enable the basic authentication
  • Test
• Configure the global HTTP basic auth
  • Add a global basic auth user group
  • Configure the global auth for application

OpenResety Edge Nov 1, 2023

OpenResety Edge Updated Nov 1, 2023 6 mins read

How to use custom dynamic metrics in OpenResty Edge

• Introduction to dynamic metrics
• Create custom dynamic metrics for the sample application
• Test

OpenResety Edge Nov 1, 2023

OpenResety Edge Updated Nov 1, 2023 5 mins read

Limit Request Rate by Custom Keys in OpenResty Edge

• Add request rate limiting page rule for the sample application
• Test
• Limit the rate of SSL handshakes

OpenResty XRay Sep 20, 2023

OpenResty XRay Updated Sep 20, 2023 14 mins read

Ylang: Universal Language for eBPF, Stap+, GDB, and More (Part 4 of 4)

• Transparent Container Tracing
• Efficient Stack Unwinding
• Analyzing Dead Processes (Core Dumps)
• Very Low Tracing Overhead
• Standard Ylang Libraries & Tools
• Network Filtering & Control
• The Ylang Compiler’s Implementation
• Operating System Support
• Contributions to Open-Source Communities

OpenResty XRay Jul 10, 2023

OpenResty XRay Updated Jul 10, 2023 10 mins read

Ylang: Universal Language for eBPF, Stap+, GDB, and More (Part 3 of 4)

• The Language Syntax (Continued)
  • String Literals
  • Built-in Regex Support
  • Full Control-Flow Support
  • Floating-Point Number Support
  • Compared to Open-Source Toolchains
• Transparent Debug Symbol Handling
  • Debug Symbols: No Runtime Overhead
  • Centralized Package Database
  • Fuzzy Matching Debug Symbols

OpenResty XRay Aug 21, 2023

OpenResty XRay Updated Aug 21, 2023 14 mins read

Ylang: Universal Language for eBPF, Stap+, GDB, and More (Part 2 of 4)

• The Language Syntax (Continued)
  • Macros with Extensions
  • Tracer and Tracee Spaces
  • Probes
  • Extended Variable Types

OpenResty XRay Jul 10, 2023

OpenResty XRay Updated Jul 10, 2023 14 mins read

Ylang: Universal Language for eBPF, Stap+, GDB, and More (Part 1 of 4)

• What is Dynamic Tracing
• Why the “Y” Name
• Getting Started
• Various Backends and Runtimes
• Why a Unified Frontend Language
• The Language Syntax

OpenResety Edge Nov 1, 2023

OpenResety Edge Updated Nov 1, 2023 5 mins read

Gateway Config's Version Control & Release Management in OpenResty Edge

• Create a page rule for the sample application
• Release the page rule
• Test
• Modify the page rule
• Release the modification
• Test the modification
• Revert the release
• Test of the release reverting

OpenResty Showman Jul 22, 2023

OpenResty Showman Updated Jul 22, 2023 10 mins read

Auto-Generate Demo Videos for Google Search from Screenplay Docs (via OpenResty Showman)

OpenResety Edge Nov 1, 2023

OpenResety Edge Updated Nov 1, 2023 4 mins read

Set Different Host Headers for Upstream Requests in OpenResty Edge

• Before setting the Host header of the upstream request
• Set the Host header of the upstream request
• Test of the new page rule

OpenResty Open Source Jul 6, 2023

OpenResty Open Source Updated Jul 6, 2023 2 mins read

Official OpenResty Debian 11 package repo

OpenResety Edge Nov 1, 2023

OpenResety Edge Updated Nov 1, 2023 5 mins read

Redirect to different URIs Based on Clients' Language Settings (OpenResty Edge)

• The origin site which supports different languages
• Create a page rule for redirection
• Test the new page rule
• Add a new page rule to redirect to the English page
• Test the new page rule

OpenResty Open Source Jun 17, 2022

OpenResty Open Source Updated Jun 17, 2022 2 mins read

OpenResty 1.19.9.1 released

• Version highlights
• Full Changelog
• Alpine 3.14 official release

OpenResety Edge Nov 1, 2023

OpenResety Edge Updated Nov 1, 2023 4 mins read

Enforce the use of SSL in websites via OpenResty Edge

• Create the page rules to redirect HTTP requests
• Test the page rule

OpenResety Edge Nov 1, 2023

OpenResety Edge Updated Nov 1, 2023 5 mins read

Issue Free SSL Certificates via Let's Encrypt in OpenResty Edge

• Add wildcard domains to the sample application
• Add SSL certificates
• Test

OpenResty Open Source Jan 4, 2022

OpenResty Open Source Updated Jan 4, 2022 2 mins read

OpenResty 1.19.9.1 RC1 is out

• Source package
• Windows binary packages
• Version highlights

OpenResty Open Source Jan 2, 2022

OpenResty Open Source Updated Jan 2, 2022 1 min read

OpenResty 1.19.3.2 released

• Version highlights
• Full Change logs