Beta Branch Nginx 1.25.0 prep for HTTP/2 HPACK + DynamicTLS patch support in 130.…

Nginx 1.25.0 prep for HTTP/2 HPACK + DynamicTLS patch support in 130.00beta01

- for Nginx 1.25.0+ optional HTTP/2 HPACK and DynamicTLS patches are combined into one patch instead of separate patches when NGINX_HPACK_ALLOWED_VER='1025005' and NGINX_HPACK='y' and NGINX_DYNAMICTLS='y' options are enebaled via persistent config file /etc/centminmod/custom_config.inc setup prior to centmin.sh menu option 4 Nginx compile/recompile/updates. By default NGINX_HPACK_ALLOWED_VER='1025005' isn't set to 1.25.5 max Nginx version allowance but 1.24.5 allowance. Hence, with Nginx 1.25.0+ need to set NGINX_HPACK_ALLOWED_VER='1025005' as well for now until more testing for Nginx 1.25.0+ and HPACK/DynamicTLS patched servers are done over time

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130.00beta01 branch

• Branch: https://github.com/centminmod/centminmod/tree/130.00beta01
• Commit History: https://github.com/centminmod/centminmod/commits/130.00beta01

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example with Centmin Mod 130.00beta01 and Nginx 1.25.1 master branch on AlmaLinux 8

testing HTTP/2 full HPACK encoding patch support inspecting the HTTP/2 header space savings percentages over consecutive h2load HTTP/2 load testing runs. Without HTTP/2 full HPACK endocing patch, Nginx by default only does partial HTTP/2 HPACK encoding so space savings over time are usually between 20-26%. But with HTTP/2 full HPACK encoding patch enabled, space savings can creep up into 80-90+ %.

Code (Text):

url=https://domain.com

for i in $(seq 1 10); do echo "h2load run $i"; h2load $url -n $i | tail -6 | head -1; done
                                                                                                    
h2load run 1
traffic: 6.46KB (6612) total, 189B (189) headers (space savings 36.36%), 6.21KB (6356) data
h2load run 2
traffic: 12.69KB (12998) total, 201B (201) headers (space savings 66.16%), 12.41KB (12712) data
h2load run 3
traffic: 18.93KB (19384) total, 213B (213) headers (space savings 76.09%), 18.62KB (19068) data
h2load run 4
traffic: 25.17KB (25770) total, 225B (225) headers (space savings 81.06%), 24.83KB (25424) data
h2load run 5
traffic: 31.40KB (32156) total, 237B (237) headers (space savings 84.04%), 31.04KB (31780) data
h2load run 6
traffic: 37.64KB (38542) total, 249B (249) headers (space savings 86.03%), 37.24KB (38136) data
h2load run 7
traffic: 43.88KB (44928) total, 261B (261) headers (space savings 87.45%), 43.45KB (44492) data
h2load run 8
traffic: 50.11KB (51314) total, 273B (273) headers (space savings 88.51%), 49.66KB (50848) data
h2load run 9
traffic: 56.35KB (57700) total, 285B (285) headers (space savings 89.34%), 55.86KB (57204) data
h2load run 10
traffic: 62.58KB (64086) total, 297B (297) headers (space savings 90.00%), 62.07KB (63560) data