Envoy Proxy Crash Course, Architecture, L7 & L4 Proxying, HTTP/2, Enabling TLS 1.2/1.3 and more

Envoy is an open-source L7 proxy and communication bus Originally built at Lyft to move their architecture away from a monolith.

In this video, I want to go through the following

• What is Envoy? 0:00

• Current & Desired Architecture 0:48

• Envoy Architeture 3:00

  • DownStream/Upstream 7:30
  • Clusters 9:19
  • Listeners 10:50
  • Network Filters 11:50
  • Connection Pools 13:45
  • Threading Model 18:34

• Example 21:25

  • Show the 4 apps 24:30
  • Install Envoy Brew 26:00
    • https://www.getenvoy.io/install/envoy/macos/
  • Envoy as a Layer 7 Proxy 27:30
    • Proxy to all 4 backend NodeJS services 28:00
    • Split load to multiple backends (app1/app2) 40:00
    • Block certain requests (/admin) 45:30
  • Envoy as a Layer 4 Proxy (tcp router) 47:50
  • Create DNS record 54:00
  • Enable HTTPS on Envoy (lets encrypt) 55:30
  • Enable HTTP/2 on Envoy 1:03:00
  • Disable 1.1/1.0 Enable TLS 1.2 and TLS 1.3 ONLY on Envoy 1:04:30
  • SSL Labs test 1:06:40

• Summary 1:07:24

Config https://github.com/hnasr/javascript_playground/tree/master/envoy

Resources https://www.envoyproxy.io/docs/envoy/latest/intro/arch_overview/intro/terminology https://www.envoyproxy.io/docs/envoy/latest/intro/arch_overview/upstream/connection_pooling#arch-overview-conn-pool

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Stay Awesome, Hussein ... https://www.youtube.com/watch?v=40gKzHQWgP0