Alpine - qemu-s390x-static - apk fetch commands fails with IO error on x86 host

[imdurgadas]

on x86 , I am trying to cross compile for s390x Alpine. The apk command fails while fetch IO errors.

Note: Alpine image works perfectly well on an s390x host.

**Issue: (Below commands executed on x86 host) **
Dockerfile:

FROM s390x/alpine
COPY qemu-s390x-static /usr/bin/
CMD uname -a

uname -a
Linux dk-vm 4.4.0-134-generic #160-Ubuntu SMP Wed Aug 15 14:58:00 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

docker build -t test-alpine -f Dockerfile-test .
Sending build context to Docker daemon  23.27MB
Step 1/3 : FROM s390x/alpine
latest: Pulling from s390x/alpine
cdf21ace9418: Already exists
ea178433f2f0: Already exists
Digest: sha256:903e1eeceeb7208949673dcb557659b5f4c8e9065a45432a0668acdd0069268c
Status: Downloaded newer image for s390x/alpine:latest
 ---> 2fc01d06b47d
Step 2/3 : COPY qemu-s390x-static /usr/bin/
 ---> 0dfcc829de99
Step 3/3 : CMD uname -a
 ---> Running in 1034e895153a
Removing intermediate container 1034e895153a
 ---> e8d1f3431d7a
Successfully built e8d1f3431d7a
Successfully tagged test-alpine:latest
root@dk-vm:~/jenkins/docker# docker run -it --name alpine test-alpine sh
/ # clear
/ # apk add --no-cache git openssh-client curl unzip bash ttf-dejavu coreutils tini
fetch http://dl-cdn.alpinelinux.org/alpine/v3.8/main/s390x/APKINDEX.tar.gz
WARNING: Ignoring http://dl-cdn.alpinelinux.org/alpine/v3.8/main/s390x/APKINDEX.tar.gz: IO ERROR
fetch http://dl-cdn.alpinelinux.org/alpine/v3.8/community/s390x/APKINDEX.tar.gz
WARNING: Ignoring http://dl-cdn.alpinelinux.org/alpine/v3.8/community/s390x/APKINDEX.tar.gz: IO ERROR
ERROR: unsatisfiable constraints:
  bash (missing):
    required by: world[bash]
  coreutils (missing):
    required by: world[coreutils]
  curl (missing):
    required by: world[curl]
  git (missing):
    required by: world[git]
  openssh-client (missing):
    required by: world[openssh-client]
  tini (missing):
    required by: world[tini]
  ttf-dejavu (missing):
    required by: world[ttf-dejavu]
  unzip (missing):
    required by: world[unzip]
  musl-1.1.19-r10:
    breaks: musl-utils-1.1.19-r10[musl?1.1.19-r10] musl-utils-1.1.19-r10[so:libc.musl-s390x.so.1] busybox-1.28.4-r0[so:libc.musl-s390x.so.1]
            libressl2.7-libcrypto-2.7.4-r0[so:libc.musl-s390x.so.1] apk-tools-2.10.0-r0[so:libc.musl-s390x.so.1]
            libressl2.7-libssl-2.7.4-r0[so:libc.musl-s390x.so.1] scanelf-1.2.3-r0[so:libc.musl-s390x.so.1]
            zlib-1.2.11-r1[so:libc.musl-s390x.so.1] alpine-baselayout-3.1.0-r0[so:libc.musl-s390x.so.1]
  busybox-1.28.4-r0:
    breaks: world[busybox] alpine-baselayout-3.1.0-r0[/bin/sh]
  alpine-baselayout-3.1.0-r0:
    breaks: world[alpine-baselayout]
  alpine-keys-2.1-r1:
    breaks: world[alpine-keys]
  libressl2.7-libcrypto-2.7.4-r0:
    breaks: apk-tools-2.10.0-r0[so:libcrypto.so.43] libressl2.7-libssl-2.7.4-r0[so:libcrypto.so.43]
  libressl2.7-libssl-2.7.4-r0:
    breaks: apk-tools-2.10.0-r0[so:libssl.so.45]
  zlib-1.2.11-r1:
    breaks: apk-tools-2.10.0-r0[so:libz.so.1]
  apk-tools-2.10.0-r0:
    breaks: world[apk-tools]
  scanelf-1.2.3-r0:
    breaks: musl-utils-1.1.19-r10[scanelf]
  musl-utils-1.1.19-r10:
    breaks: libc-utils-0.7.1-r0[musl-utils]
  libc-utils-0.7.1-r0:
    breaks: world[libc-utils]
/ # exit

[imdurgadas]

This issue isn't noticed in v2.12.0-1 . Closing !