fix(ci): copy alpine inside alpine/Dockerfile

alpine/Dockerfile

@@ -1,56 +1,43 @@
 FROM alpine:3.18
 
-LABEL maintainer="Kong <[email protected]>"
-
-ARG ASSET=ce
-ENV ASSET $ASSET
-
-ARG EE_PORTS
-
-# hadolint ignore=DL3010
-COPY kong.tar.gz /tmp/kong.tar.gz
-
 ARG KONG_VERSION=2.8.5
 ENV KONG_VERSION $KONG_VERSION
 
 ARG KONG_AMD64_SHA="22a5cd7c981ec15b34db105aabac7815bd589380a8d27d0c9e138657a9da6332"
 
-# hadolint ignore=DL3018
-RUN set -eux; \
-    arch="$(apk --print-arch)"; \
+ARG KONG_PREFIX=/usr/local/kong
+ENV KONG_PREFIX $KONG_PREFIX
+
+ARG ASSET=remote
+ARG EE_PORTS
+
+COPY kong.apk.tar.gz /tmp/kong.apk.tar.gz
+
+RUN set -ex; \
     major_minor="$(echo "${KONG_VERSION%.*}" | tr -d '.')"; \
     KONG_SHA256=$KONG_AMD64_SHA ; \
-    if [ "$ASSET" = "ce" ] ; then \
-      apk add --no-cache --virtual .build-deps curl wget tar ca-certificates \
-      && curl -fL "https://packages.konghq.com/public/gateway-${major_minor}/alpine/any-version/main/x86_64/kong-${KONG_VERSION}.apk" -o /tmp/kong.tar.gz \
-      && echo "$KONG_SHA256  /tmp/kong.tar.gz" | sha256sum -c - \
-      && apk del .build-deps; \
-    else \
-      # this needs to stay inside this "else" block so that it does not become part of the "official images" builds (https://github.com/docker-library/official-images/pull/11532#issuecomment-996219700)
-      apk upgrade; \
+    apk add bash curl ca-certificates; \
+    if [ "$ASSET" = "remote" ] ; then \
+      curl -fL "https://packages.konghq.com/public/gateway-${major_minor}/alpine/any-version/main/x86_64/kong-${KONG_VERSION}.apk" -o /tmp/kong.apk.tar.gz \
+      && echo "$KONG_SHA256  /tmp/kong.apk.tar.gz" | sha256sum -c -; \
     fi \
-    && mkdir /kong \
-    && tar -C /kong -xzf /tmp/kong.tar.gz \
-    && mv /kong/usr/local/* /usr/local \
-    && mv /kong/etc/* /etc \
-    && rm -rf /kong \
-    && apk add --no-cache libstdc++ libgcc openssl pcre perl tzdata libcap zip bash zlib zlib-dev git ca-certificates \
-    && apk add --no-cache luarocks \
+    && apk add --no-cache --virtual .build-deps tar gzip \
+    && tar -C / -xzf /tmp/kong.apk.tar.gz \
+    && apk add --no-cache libstdc++ libgcc openssl pcre perl tzdata libcap zlib zlib-dev bash luarocks yaml \
     && adduser -S kong \
     && addgroup -S kong \
-    && mkdir -p "/usr/local/kong" \
-    && chown -R kong:0 /usr/local/kong \
+    && mkdir -p "${KONG_PREFIX}" \
+    && chown -R kong:0 ${KONG_PREFIX} \
     && chown kong:0 /usr/local/bin/kong \
-    && chmod -R g=u /usr/local/kong \
+    && chmod -R g=u ${KONG_PREFIX} \
     && rm -rf /tmp/kong.tar.gz \
     && ln -sf /usr/local/openresty/bin/resty /usr/local/bin/resty \
     && ln -sf /usr/local/openresty/luajit/bin/luajit /usr/local/bin/luajit \
     && ln -sf /usr/local/openresty/luajit/bin/luajit /usr/local/bin/lua \
     && ln -sf /usr/local/openresty/nginx/sbin/nginx /usr/local/bin/nginx \
     && ln -sf /usr/local/lib/luarocks/*/luarocks/*/bin/luarocks-admin /usr/local/bin/luarocks-admin \
-    && if [ "$ASSET" = "ce" ] ; then \
-      kong version; \
-    fi
+    && apk del .build-deps \
+    && kong version
 
 COPY docker-entrypoint.sh /docker-entrypoint.sh