Refactor again (#11)

linux/alpine/go/Dockerfile

@@ -0,0 +1,24 @@
+ARG IMAGE=ghcr.io/catthehacker/alpine
+ARG TAG=act
+FROM ${IMAGE}:${TAG}
+
+ARG TARGETARCH
+ARG TARGETVARIANT
+
+SHELL [ "/bin/ash", "-l", "-o", "pipefail", "-c" ]
+
+RUN set -euxo pipefail \
+    && printf "Installing Go(lang)\n" \
+    && sudo apk add --no-cache go
+
+ARG BUILD_TAG_VERSION="dev"
+ARG BUILD_TAG="go"
+ARG BUILD_REF="master"
+
+LABEL org.opencontainers.image.vendor="catthehacker"
+LABEL org.opencontainers.image.authors="me@hackerc.at"
+LABEL org.opencontainers.image.url="https://github.com/catthehacker/docker_images/tree/${BUILD_REF}/linux/${ImageOS}/${BUILD_TAG}/"
+LABEL org.opencontainers.image.source="https://github.com/catthehacker/docker_images"
+LABEL org.opencontainers.image.version=${BUILD_TAG_VERSION}
+LABEL org.opencontainers.image.title=${BUILD_TAG}-${TARGETARCH}-${TARGETVARIANT}
+LABEL org.opencontainers.image.revision=${BUILD_REF}