| layout | title | categories | author | lang |
|---|---|---|---|---|
post |
How to deploy CoreOS on RunAbove? |
Instances |
yadutaf |
en |
CoreOS is Linux for Massive Server Deployments. It leverages state of the art software like Docker and systemd to become the cluster operating system.
It supports painless upgrade, service discovery, overlay networks, Ceph, ... In a word, it's awesome!
And deploying it on Runabove is a breeze.
Go the OpenStack Horizon, then go to Images panel and then on the create image button to install the new image.
CoreOS distributes official OpenStack compressed images that we'll need to prepare. For example:
wget http://alpha.release.core-os.net/amd64-usr/current/coreos_production_openstack_image.img.bz2
bunzip2 coreos_production_openstack_image.img.bz2
You can then upload resulting coreos_production_openstack_image.img file (around 400MB). Alternatively You'll find an already inflated images of CoreOS 431 here.
Click the Launch button right next to your new image.
Pick a cool name for your instance. Say agent_007. Make sure to select a network like Ext-Net. Then move on to the post-creation tab.
If you don't have one already, generate a unique token to identify your new CoreOS cluster. This token will allow cluster members to automatically discover their peers.
curl https://discovery.etcd.io/new; echo
Paste and customize the following cloud-config script. Cloud-config is the standard for VM customization and especially well integrated by CoreOS team.
#cloud-config
coreos:
etcd:
# <token> as generated above
discovery: https://discovery.etcd.io/<token>
addr: $private_ipv4:4001
peer-addr: $private_ipv4:7001
units:
- name: etcd.service
command: start
- name: fleet.service
command: startDon't forget to login with the user core instead of admin or root!
You can find more information: https://coreos.com/docs/running-coreos/platforms/openstack/