update to alpine 3.22 (#279)

* update to alpine 3.22.1
* update docs wrt PCRE JIT on `s309x`

Author: afsanehr

CHANGELOG.md

@@ -1,5 +1,8 @@
 Changelog
 =========
+## 1.27.1.2-4 (2025-09-03)
+
+ * Upgrade `alpine` built-from source flavor to Alpine 3.22.1
 
 ## 1.27.1.2-3 (2025-07-30)
 

README.md

@@ -352,7 +352,7 @@ docker build --build-arg RESTY_J=4 -f jammy/Dockerfile .
 | Key                                     | Default | Description |
 |:-----------------------------------------| :-----: |:----------- |
 | RESTY_IMAGE_BASE                        | "ubuntu" / "alpine" | The Debian or Alpine Docker image base to build `FROM`. |
-| RESTY_IMAGE_TAG                         | "noble" / "3.21.3" | The Debian or Alpine Docker image tag to build `FROM`. |
+| RESTY_IMAGE_TAG                         | "noble" / "3.22.1" | The Debian or Alpine Docker image tag to build `FROM`. |
 | RESTY_VERSION                           | 1.27.1.2 | The version of OpenResty to use. |
 | RESTY_LUAROCKS_VERSION                  | 3.12.2 | The version of LuaRocks to use. |
 | RESTY_OPENSSL_VERSION                   | 3.4.1 | The version of OpenSSL to use. |

alpine/Dockerfile

@@ -2,15 +2,15 @@
 # https://github.com/openresty/docker-openresty
 
 ARG RESTY_IMAGE_BASE="alpine"
-ARG RESTY_IMAGE_TAG="3.21.3"
+ARG RESTY_IMAGE_TAG="3.22.1"
 
 FROM ${RESTY_IMAGE_BASE}:${RESTY_IMAGE_TAG}
 
 LABEL maintainer="Evan Wies <evan@neomantra.net>"
 
 # Docker Build Arguments
 ARG RESTY_IMAGE_BASE="alpine"
-ARG RESTY_IMAGE_TAG="3.21.3"
+ARG RESTY_IMAGE_TAG="3.22.1"
 ARG RESTY_VERSION="1.27.1.2"
 
 # https://github.com/openresty/openresty-packaging/blob/master/alpine/openresty-openssl3/APKBUILD