Use Qemu to Build S390x images

Tips to build Qemu S390x images

1. Connect to a build machine

ssh root@ip

2. Clone the operator

“git clone https://github.com/prb112/operator.git“`

3. Install qemu and buildah and podman-docker

yum install -y qemu-kvm buildah podman-docker

/usr/bin/docker run --rm --privileged tonistiigi/binfmt:latest --install all
Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg.
✔ docker.io/tonistiigi/binfmt:latest
Trying to pull docker.io/tonistiigi/binfmt:latest...
Getting image source signatures
Copying blob e9c608ddc3cb done  
Copying blob 8d4d64c318a5 done  
Copying config 354472a378 done  
Writing manifest to image destination
Storing signatures
installing: arm64 OK
installing: arm OK
installing: ppc64le OK
installing: mips64 OK
installing: riscv64 OK
installing: mips64le OK
installing: s390x OK
{
  "supported": [
    "linux/amd64",
    "linux/arm64",
    "linux/riscv64",
    "linux/ppc64le",
    "linux/s390x",
    "linux/386",
    "linux/mips64le",
    "linux/mips64",
    "linux/arm/v7",
    "linux/arm/v6"
  ],
  "emulators": [
    "kshcomp",
    "qemu-aarch64",
    "qemu-arm",
    "qemu-mips64",
    "qemu-mips64el",
    "qemu-ppc64le",
    "qemu-riscv64",
    "qemu-s390x"
  ]
}

/usr/bin/buildah bud --arch s390x -f $(pwd)/build/Dockerfile --format docker --tls-verify=true -t op:v0.1.1-linux-s390x $(pwd)/