Vagrant

Was ist Vagrant?

install

• vagrant-ubuntu-install
• vagrant-libivrt

systems

• coreos
• coreos cluster
• core-os

setting a cluster

• curl https://discovery.etcd.io/new?size=3

After running this command you will get out a new private discovery URL that looks something like https://discovery.etcd.io/<token>. Take this token and put it in the relevant section of the user-data file using your favorite text editor. When you are done the top of the user-data file should look like this:

#cloud-config
coreos:
 etcd:
   discovery: https://discovery.etcd.io/<token>

• eval `ssh-agent -s`
• ssh-add
• ssh-add ~/.vagrant.d/insecure_private_key
• vagrant ssh core-01 -- -A

on the node

• core@core-01 ~ $ fleetctl list-machines

MACHINE		IP		METADATA
56ba03a8...	172.17.8.101	-
747c8c53...	172.17.8.102	-
e82acbd2...	172.17.8.103	-

setting the first key

• core@core-01 ~ $ etcdctl set first-etcd-key "Hello World"

Hello World

getting the first key from the other machines

• core@core-01 ~ $ fleetctl ssh e82acbd2 etcdctl get first-etcd-key

Hello World

• core@core-01 ~ $ fleetctl ssh 747c8c53 etcdctl get first-etcd-key

Hello World

links

• http://www.lucainvernizzi.net/blog/2014/12/03/vagrant-and-libvirt-kvm-qemu-setting-up-boxes-the-easy-way/
• http://www.linux-magazin.de/Ausgaben/2013/05/Perl-Snapshot