provision_redhatcoreos_qemu_macosx.sh

provision_redhatcoreos_qemu_macosx.sh

#!/usr/bin/env bash
#Install brew and qemu dependencies
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
brew install qemu
brew install jq

rm -rf /tmp/rhcosqemu

#Download RedHat CoreOS Image and resize primary disk to 30G
mkdir -p /tmp/rhcosqemu/image
cd /tmp/rhcosqemu/image
RHCOS_IMAGE_FILE=$(curl https://mirror.openshift.com/pub/openshift-v4/dependencies/rhcos/4.4/latest/sha256sum.txt | grep qemu | awk '{print $2}')
DOWNLOAD_URL="https://mirror.openshift.com/pub/openshift-v4/dependencies/rhcos/4.4/latest/$RHCOS_IMAGE_FILE"
curl "$DOWNLOAD_URL" --output rhcos-qemu.x86_64.qcow2.xz
gunzip rhcos-qemu.x86_64.qcow2.xz
qemu-img resize /tmp/rhcosqemu/image/rhcos-qemu.x86_64.qcow2 30G
#create 30G secondary disk as well
qemu-img create -f qcow2 /tmp/rhcosqemu/image/secondarydisk.qcow2 30G
#Create the Ignition Configuration File
mkdir -p /tmp/rhcosqemu/ignitionmetadata
cd /tmp/rhcosqemu/ignitionmetadata
ssh-keygen -b 2048 -t rsa -f id_rsa_rhcosboot -P ""
chmod 0600 /tmp/rhcosqemu/ignitionmetadata/id_rsa_rhcosboot
PUBLIC_KEY=$(cat /tmp/rhcosqemu/ignitionmetadata/id_rsa_rhcosboot.pub)
cat <<EOF >/tmp/rhcosqemu/ignitionmetadata/ignitionconfig.ign
{
    "ignition": {
        "version": "2.2.0"
    },
    "passwd": {
        "users": [
            {
                "name": "core",
                "sshAuthorizedKeys": [
                    "${PUBLIC_KEY}"
                ]
            }
        ]
    }
}
EOF

#boot the machine up
qemu-system-x86_64 -m 2048 -smp 4 -hda /tmp/rhcosqemu/image/rhcos-qemu.x86_64.qcow2 -hdb /tmp/rhcosqemu/image/secondarydisk.qcow2 -fw_cfg name=opt/com.coreos/config,file=/tmp/rhcosqemu/ignitionmetadata/ignitionconfig.ign -device e1000,netdev=net0 -netdev user,id=net0,hostfwd=tcp::5556-:22 -nographic