style: use uppercase AS in multi-stage FROM directives (Hadolint DL3006)

Author: josecarlospeer-cloud

8.1/Dockerfile

@@ -1,4 +1,4 @@
-FROM --platform=$BUILDPLATFORM alpine:3.19 as main
+FROM --platform=$BUILDPLATFORM alpine:3.19 AS main
 
 LABEL maintainer="Jorge Arco <jorge.arcoma@gmail.com>"
 
@@ -49,7 +49,7 @@ EXPOSE 9000
 
 WORKDIR /app
 
-FROM --platform=$BUILDPLATFORM main as dev
+FROM --platform=$BUILDPLATFORM main AS dev
 
 ARG USER=root
 ARG PASSWORD=root

8.2/Dockerfile

@@ -1,4 +1,4 @@
-FROM --platform=$BUILDPLATFORM alpine:3.21 as main
+FROM --platform=$BUILDPLATFORM alpine:3.21 AS main
 
 LABEL maintainer="Jorge Arco <jorge.arcoma@gmail.com>"
 
@@ -52,7 +52,7 @@ EXPOSE 9000
 
 WORKDIR /app
 
-FROM --platform=$BUILDPLATFORM main as dev
+FROM --platform=$BUILDPLATFORM main AS dev
 
 ARG USER=root
 ARG PASSWORD=root

8.3/Dockerfile

@@ -1,4 +1,4 @@
-FROM --platform=$BUILDPLATFORM alpine:3.20 as main
+FROM --platform=$BUILDPLATFORM alpine:3.20 AS main
 
 LABEL maintainer="Jorge Arco <jorge.arcoma@gmail.com>"
 
@@ -49,7 +49,7 @@ EXPOSE 9000
 
 WORKDIR /app
 
-FROM --platform=$BUILDPLATFORM main as dev
+FROM --platform=$BUILDPLATFORM main AS dev
 
 ARG USER=root
 ARG PASSWORD=root

8.4/Dockerfile

@@ -1,6 +1,6 @@
 # PHP 8.4 — uses alpine:edge until php84 lands in a stable Alpine release.
 # TODO: pin to alpine:3.22 (or next stable) once available.
-FROM --platform=$BUILDPLATFORM alpine:edge as main
+FROM --platform=$BUILDPLATFORM alpine:edge AS main
 
 LABEL maintainer="Jorge Arco <jorge.arcoma@gmail.com>"
 
@@ -51,7 +51,7 @@ EXPOSE 9000
 
 WORKDIR /app
 
-FROM --platform=$BUILDPLATFORM main as dev
+FROM --platform=$BUILDPLATFORM main AS dev
 
 ARG USER=root
 ARG PASSWORD=root