This contains my experiences while learning CoreOS on an OpenStack infrastructure. This project usages HEAT templates to provision multi node cluster in our infrastructure.
Follow these commands:
alok@remote $ heat stack-create -f heat-template.yaml -P discovery_token_url=`curl -q https://discovery.etcd.io/new?size=3` -P public_network_uuid=87cb4819-33d4-4f2d-86d2-6970c11962da -P key_name=myoskey trycoreos
This provides a three machine cluster. Find ip address of control node using
heat output-show trycoreos control_ip. Lets say it is 108.182.62.205.
alok@remote $ export FLEETCTL_TUNNEL="108.182.62.205"
alok@remote $ fleetctl list-machines
alok@remote $ export ETCDCTL_PEERS="https://108.182.62.205:2379"
alok@remote $ etcdctl ls --recursive
alok@remote $ etcdctl set coreos/network/config “192.168.3.0/24”
alok@remote $ etcdctl ls --recursive
# too ssh to one of the machines
alok@remote $ fleetctl ssh e7d9f87f
core@core-control ~ $
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