Scripts

get-coreos

Run the get-coreos script to download CoreOS kernel and initrd images, verify them, and move them into examples/assets.

./scripts/get-coreos
./scripts/get-coreos channel version

This will create:

assets/
└── coreos
    └── 899.6.0
        ├── coreos_production_pxe.vmlinuz
        └── coreos_production_pxe_image.cpio.gz
    └── 942.0.0
        ├── coreos_production_pxe.vmlinuz
        └── coreos_production_pxe_image.cpio.gz

libvirt

Create libvirt VM nodes which are configured to boot from the network. The scripts/libvirt script will create virtual machines on the metal0 or docker0 bridge with known hardware attributes (e.g. UUID, MAC address).

$ sudo ./scripts/libvirt
USAGE: libvirt <command>
Commands:
    create-docker   create libvirt nodes on the docker0 bridge
    create-rkt      create libvirt nodes on a rkt CNI metal0 bridge
    start           start the libvirt nodes
    reboot          reboot the libvirt nodes
    shutdown        shutdown the libvirt nodes
    poweroff        poweroff the libvirt nodes
    destroy         destroy the libvirt nodes

k8s-certgen

Generate TLS certificates needed for a multi-node Kubernetes cluster. See the examples.

$ ./scripts/tls/k8s-certgen -h
./scripts/tls/k8s-certgen -h
Usage: k8s-certgen
Options:
  -d DEST     Destination for generated files (default: .examples/assets/tls)
  -s SERVER   Reachable Server IP for kubeconfig (e.g. 172.15.0.21)
  -m MASTERS  Master Node Names/Addresses in SAN format (e.g. IP.1=10.3.0.1,IP.2=172.15.0.21).
  -w WORKERS  Worker Node Names/Addresses in SAN format (e.g. IP.1=172.15.0.22,IP.2=172.15.0.23)
  -h          Show help.