Fixed common part of Dockerfile #2213

tools/Dockerfile.tail

@@ -1,23 +1,18 @@
-WORKDIR ${prefix}
+WORKDIR /uniget_bootstrap
 RUN <<EOF
 find . -type f,l \
-| grep -v "${prefix}${uniget_manifests}/${name}.txt" \
->"${prefix}${uniget_manifests}/${name}.txt"
+| grep -v "/var/lib/uniget/manifests/${name}.txt" \
+>"/uniget_bootstrap/var/lib/uniget/manifests/${name}.txt"
 EOF
-#RUN <<EOF
-#find "${prefix}" -type f -executable -exec strip --verbose --strip-all --preserve-dates {} \;
-#EOF
-COPY manifest.json "${prefix}${uniget_manifests}/${name}.json"
+COPY manifest.json "/uniget_bootstrap/var/lib/uniget/manifests/${name}.json"
 
 FROM scratch
 ARG ref
 ARG name
 ARG version
 ARG deps
 ARG tags
-ARG prefix_override=/uniget_bootstrap
-ENV prefix=${prefix_override}
-COPY --from=prepare ${prefix} /
+COPY --from=prepare /uniget_bootstrap /
 LABEL org.opencontainers.image.source="https://github.com/uniget-org/tools" \
       org.opencontainers.image.ref.name="${ref}" \
       org.opencontainers.image.title="${name}" \