Created
November 7, 2018 10:58
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POC: Run RHCOS via xhyve on OSX with ignition
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| # These have to be extracted from the qcow2 image | |
| # TODO: Provide these via docker image? | |
| KERNEL="vmlinuz-3.10.0-862.14.4.el7.x86_64" | |
| INITRD="initramfs-3.10.0-862.14.4.el7.x86_64.img" | |
| # This is where the magic happens | |
| # | |
| # To change the ignition (node type), you can use 'bootstrap', 'master' or 'worker' | |
| # coreos.config.url=http://192.168.0.168:8080/bootstrap.ign | |
| # | |
| # You can generate the .ign files using: openshift-install create ignition-configs --dir=/tmp/cluster-ignition | |
| # Then you can run simple HTTP server to serve them: | |
| # $ cd /tmp/cluster-ignition && python -m SimpleHTTPServer 8080 | |
| # | |
| # NOTE: Change the IP address to your Mac IP address? | |
| # | |
| # This is needed to run ignition on first boot to fetch the .ign files: | |
| # coreos.first_boot=detected | |
| # | |
| CMDLINE="earlyprintk=serial no_timer_check console=ttyS0 acpi=off root=/dev/vda1 root=UUID=75616629-8d7a-4a1d-93bc-47af28547d57 net.ifnames=0 biosdevname=0 rd.neednet=1 ip=eth0:dhcp ostree=/ostree/boot.0/rhcos/a381c1c06a830fa21f4ca0566064f141d5afdb11f2b94c93cef7845e37984238/0 rw coreos.config.url=http://192.168.0.168:8080/bootstrap.ign coreos.first_boot=detected" | |
| # To get qcow support you need hyperkit from Docker that has some experimental patches. | |
| # However, running bootkube on this setup will likely give you kernel panic, so I recommend to convert | |
| # the qcow to 'raw' format and use the official latest 'xhyve' binary? | |
| IMG_HDD="-s 2,virtio-blk,file:///Users/mfojtik/test-installer/rhcos-qemu.qcow2,format=qcow" | |
| # UUID makes the DHCP server give this VM the same IP address. If you run multiple VM's you probably want to | |
| # adjust this and store somewhere? | |
| UUID="-U 8e7af180-c54d-4aa2-9bef-59d94a1ac572" | |
| # VM config, nothing interesting here | |
| MEM="-m 4G" | |
| NET="-s 3:0,virtio-net,en0" | |
| PCI_DEV="-s 0:0,hostbridge -s 31,lpc" | |
| LPC_DEV="-l com1,stdio" | |
| ACPI="-A" | |
| # TODO: Use xhyve instead of hyperkit unless we want to deal with weird kernel panics ;) | |
| # | |
| sudo hyperkit $UUID $ACPI $MEM $PCI_DEV $LPC_DEV $NET $IMG_CD $IMG_HDD -f kexec,$KERNEL,$INITRD,"$CMDLINE" |
@mfojtik how did you extracted the vmlinuz and initrd file from qcow2. I tried something following but didn't work well :( . sha256 is not as it should be but I didn't get any error during downloading the image also.
$ wget -c https://releases-rhcos.svc.ci.openshift.org/storage/releases/maipo/47.90/redhat-coreos-maipo-47.90-qemu.qcow2
--2018-11-12 16:53:58-- https://releases-rhcos.svc.ci.openshift.org/storage/releases/maipo/47.90/redhat-coreos-maipo-47.90-qemu.qcow2
Resolving releases-rhcos.svc.ci.openshift.org (releases-rhcos.svc.ci.openshift.org)... 35.196.103.194
Connecting to releases-rhcos.svc.ci.openshift.org (releases-rhcos.svc.ci.openshift.org)|35.196.103.194|:443... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://d26v6vn1y7q7fv.cloudfront.net/releases/maipo/47.90/redhat-coreos-maipo-47.90-qemu.qcow2 [following]
--2018-11-12 16:54:00-- https://d26v6vn1y7q7fv.cloudfront.net/releases/maipo/47.90/redhat-coreos-maipo-47.90-qemu.qcow2
Resolving d26v6vn1y7q7fv.cloudfront.net (d26v6vn1y7q7fv.cloudfront.net)... 13.35.129.165, 13.35.129.54, 13.35.129.196, ...
Connecting to d26v6vn1y7q7fv.cloudfront.net (d26v6vn1y7q7fv.cloudfront.net)|13.35.129.165|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 726789269 (693M) [binary/octet-stream]
Saving to: ‘redhat-coreos-maipo-47.90-qemu.qcow2’
redhat-coreos-maipo-47.90-qemu.qcow2 100%[========================================================================================>] 693.12M 3.82MB/s in 5m 19s
2018-11-12 16:59:19 (2.18 MB/s) - ‘redhat-coreos-maipo-47.90-qemu.qcow2’ saved [726789269/726789269]
$ sha256sum redhat-coreos-maipo-47.90-qemu.qcow2
92e3a81fa5bf3993ef3de5a316caa13027302cbf182e44adb648c598afcb6fb5 redhat-coreos-maipo-47.90-qemu.qcow2
$ curl https://releases-rhcos.svc.ci.openshift.org/storage/releases/maipo/47.90/meta.json | jq '. | {images}'
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 2184 100 2184 0 0 999 0 0:00:02 0:00:02 --:--:-- 999
{
"images": {
"qemu": {
"path": "redhat-coreos-maipo-47.90-qemu.qcow2",
"sha256": "cc1508f3d160b16bf03befb0f24d1dc4d7b52e68b77583b39aff380befd386cb"
}
}
}
$ sudo guestmount -a redhat-coreos-maipo-47.90-qemu.qcow2 -m /dev/sda --ro /mnt/test/ -o allow_other
libguestfs: error: mount_options: mount exited with status 32: mount: /sysroot: wrong fs type, bad option, bad superblock on /dev/sda, missing codepage or helper program, or other error.
guestmount: ‘/dev/sda’ could not be mounted.
guestmount: Did you mean to mount one of these filesystems?
guestmount: /dev/sda (unknown)
https://gist.github.com/praveenkumar/17e481780ba3506d949346d124214827 Here is the detail about how to get those vmlinuz and initrd files.
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I will try same on xhyve side tomorrow and provide some feedback.