CoreOS + xhyve
- xhyve is a very new project, expect bugs! You must be running OS X 10.10.3 Yosemite or later and 2010 or later Mac for this to work.
- xhyve will crash your system if VirtualBox had been run previously (see xhyve's issues #5 and #9 for the full context). So if you were using it in your current session please do restart your Mac before attempting to run xhyve.
$ git clone https://github.com/mist64/xhyve
$ cd xhyve
$ make
$ sudo cp build/xhyve /usr/local/bin/
$ xhyve -h
Usage: xhyve [-behuwxACHPWY] [-c vcpus] [-g <gdb port>] [-l <lpc>]
...
By default, the following commands will fetch the latest CoreOS Alpha image available, verify it (if you have gpg installed in your system) with the build public key, and then run it under xhyve.
coreos-xhyve-fetch
coreos-xhyve-run
In your teminal you should see something like this:
This is localhost (Linux x86_64 4.0.3) 02:59:17
SSH host key: 92:2e:78:25:8e:81:f3:74:61:c7:3b:79:db:3b:0f:c2 (DSA)
SSH host key: 55:19:07:2c:44:9d:0c:f8:61:9e:95:97:61:ab:c5:c5 (ED25519)
SSH host key: ba:69:da:37:7e:c2:b6:26:e4:72:b5:94:d4:b8:97:bb (RSA)
eth0: 192.168.64.1 fe80::24d7:36ff:fe1d:cf32
localhost login: core (automatic login)
CoreOS stable (695.0.0)
Update Strategy: No Reboots
Last login: Thu Jun 11 02:59:17 +0000 2015 on /dev/tty1.
core@localhost ~ $
Now you can try to ssh in:
$ ssh core@192.168.64.1
Or try out docker:
$ brew install docker
$ docker -H 192.168.64.1:2375
Or try out rkt:
$ systemd-run rkt --insecure-skip-verify run coreos.com/etcd,version=v2.0.10 -- --listen-client-urls 'http://0.0.0.0:2379,http://0.0.0.0:4001'
And test from your laptop:
$ curl 192.168.64.1:2379/version
etcd 2.0.10
The coreos-xhyve-fetch and coreos-xhyve-run behavior can be customized
through the following environment variables:
-
CHANNEL
defaults toalpha.
available alternatives arestableandbeta -
VERSION
defaults tolatest. -
MEMORY
defaults to1024.
value is understood as being in MB. -
UUID defaults to a random uuid.
set to a constant value in order to achieve the same IP address across VM reboots.
As a bonus, on startup, the VMs IP address will be written to~/.coreos-xhyve/${UUID}, which should allow one to all sorts of automation tricks. -
SSHKEY
defaults to none if set will add the given SSH public key to the core user's authorized_keys file (it is usually in ~/.ssh/id_rsa.pub). -
CLOUD_CONFIG
defaults tohttps://raw.githubusercontent.com/coreos/coreos-xhyve/master/cloud-init/docker-only.txt.
has to be a valid, reachable, URL, pointing to a valid cloud-config file.tip:
see here for how to host your custom cloud-config locally, so that you can run CoreOS locally without any online dependencies, then on/etc/apache2/users/<YourUsername>.confreplaceAllow from localhostbyAllow from localhost, 192.168.0.0/255.255.0.0.
usage would be something like...
CLOUD_CONFIG=http://192.168.64.1/~am/coreos-xhyve/xhyve.cloud-init ./coreos-xhyve-run
By default /Users is mounted inside your CoreOS VM, as /Users, so docker
volumes will work as expected.