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* simple example just network boots CoreOS machines * simple-install example just network boots and installs CoreOS * Simple examples don't do much provisioning, except adding pubkeys
Examples
These examples network boot and provision machines into CoreOS clusters using bootcfg. You can re-use their profiles to provision your own physical machines.
| Name | Description | CoreOS Version | FS | Docs |
|---|---|---|---|---|
| simple | CoreOS with autologin, using iPXE | alpha/1153.0.0 | RAM | reference |
| simple-install | CoreOS Install, using iPXE | alpha/1153.0.0 | RAM | reference |
| grub | CoreOS via GRUB2 Netboot | alpha/1153.0.0 | RAM | NA |
| etcd | A 3 node etcd cluster with proxies | alpha/1153.0.0 | RAM | reference |
| etcd-install | Install a 3 node etcd cluster to disk | alpha/1153.0.0 | Disk | reference |
| etcd3 | A 3 node etcd3 cluster with proxies | alpha/1153.0.0 | RAM | None |
| etcd3-install | Install a 3 node etcd3 cluster to disk | alpha/1153.0.0 | Disk | None |
| k8s | Kubernetes cluster with 1 master, 2 workers, and TLS-authentication | alpha/1153.0.0 | Disk | tutorial |
| k8s-install | Kubernetes cluster, installed to disk | alpha/1153.0.0 | Disk | tutorial |
| rktnetes | Kubernetes cluster with rkt container runtime, 1 master, workers, TLS auth (experimental) | alpha/1153.0.0 | Disk | None |
| rktnetes-install | Kubernetes cluster with rkt container runtime, installed to disk (experimental) | alpha/1153.0.0 | Disk | None |
| bootkube | iPXE boot a self-hosted Kubernetes cluster (with bootkube) | alpha/1153.0.0 | Disk | tutorial |
| bootkube-install | Install a self-hosted Kubernetes cluster (with bootkube) | alpha/1153.0.0 | Disk | tutorial |
| torus | Torus distributed storage | alpha/1153.0.0 | Disk | tutorial |
Tutorials
Get started running bootcfg on your Linux machine to network boot and provision clusters of VMs or physical hardware.
SSH Keys
Most examples allow ssh_authorized_keys to be added for the core user as machine group metadata.
# /var/lib/bootcfg/groups/default.json
{
"name": "Example Machine Group",
"profile": "pxe",
"metadata": {
"ssh_authorized_keys": ["ssh-rsa pub-key-goes-here"]
}
}
Conditional Variables
"pxe"
Some examples check the pxe variable to determine whether to create a /dev/sda1 filesystem and partition for PXEing with root=/dev/sda1 ("pxe":"true") or to write files to the existing filesystem on /dev/disk/by-label/ROOT ("pxe":"false").