Revert "Fixed #351: docker images for all supported architectures"

This reverts commit 8ed1b2a.

docker/Dockerfile

@@ -1,34 +1,11 @@
-FROM alpine:3.18
-LABEL org.opencontainers.image.source https://github.com/openzim/zim-tools
-
-# TARGETPLATFORM is injected by docker build
-ARG TARGETPLATFORM
+ARG VERSION=
+FROM alpine:3
 ARG VERSION
+LABEL org.opencontainers.image.source https://github.com/openzim/zim-tools
+RUN echo "Build image for version: $VERSION"
 
-RUN set -e && \
-    apk --no-cache add dumb-init curl && \
-    echo "TARGETPLATFORM: $TARGETPLATFORM" && \
-    if [ "$TARGETPLATFORM" = "linux/386" ]; then ARCH="i586"; \
-    # linux/arm64/v8 points to linux/arm64
-    elif [ "$TARGETPLATFORM" = "linux/arm64/v8" \
-        -o "$TARGETPLATFORM" = "linux/arm64" ]; then ARCH="aarch64"; \
-    # linux/arm translates to linux/arm/v7
-    elif [ "$TARGETPLATFORM" = "linux/arm/v7" ]; then ARCH="armv8"; \
-    elif [ "$TARGETPLATFORM" = "linux/arm/v6" ]; then ARCH="armv6"; \
-    elif [ "$TARGETPLATFORM" = "linux/amd64/v3" \
-        -o "$TARGETPLATFORM" = "linux/amd64/v2" \
-        -o "$TARGETPLATFORM" = "linux/amd64" ]; then ARCH="x86_64"; \
-    # we dont suppot any other arch so let it fail
-    else ARCH="unknown"; fi && \
-    # download requested kiwix-tools version
-    url="https://download.openzim.org/release/zim-tools/zim-tools_linux-$ARCH-$VERSION.tar.gz" && \
-    echo "URL: $url" && \
-    curl -k -L $url | tar -xz -C /usr/local/bin/ --strip-components 1 && \
-    # only needed in dockerfile
-    apk del curl
-
-# expose kiwix-serve default port
-EXPOSE 80
+RUN wget -O - -q https://download.openzim.org/release/zim-tools/zim-tools_linux-x86_64-$VERSION.tar.gz | tar -xz && \
+  cp zim-tools*/* /usr/local/bin/ && \
+  rm -rf zim-tools*
 
-ENTRYPOINT ["/usr/bin/dumb-init", "--"]
 CMD ["/bin/sh", "-c", "echo 'Welcome to zim-tools! The following binaries are available:' && ls /usr/local/bin/"]