geekidea/alpine-a repository overview

alpine-a (this image) just did DNS A query, and removed the DNS AAAA query (when using
AF_UNSPEC by default in musl libc), so there's no overhead for processing additional AAAA
query, and it's very helpful in cases that no need for DNS AAAA query by default.

see: https://github.com/kubernetes/kubernetes/issues/56903#issuecomment-409603030⁠,
and for more: https://github.com/inter169/systs/blob/master/alpine/slowdns/README.md⁠

NOTE
for such runtime docker images based on alpine, e.g. node:*alpine, openjdk:*alpine
the original musl libc library was located there, so you should copy the patched library from
geekidea/alpine-a:<version> to your runtime images.