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da0df01763
* Refactor examples to boot provision minimal hosts with Fedora CoreOS or Flatcar Linux * Remove the etcd3 cluster example or other specific kinds of hosts * Update script get-fedora-coreos * Remove script get-coreos
Scripts
get-fedora-coreos
Run the get-fedora-coreos script to download Fedora CoreOS images, verify them, and move them into examples/assets.
./scripts/get-fedora-coreos
./scripts/get-fedora-coreos stream version dest
This will create:
examples/assets/fedora-coreos/
├── fedora-coreos-32.20200923.3.0-live-initramfs.x86_64.img
├── fedora-coreos-32.20200923.3.0-live-kernel-x86_64
├── fedora-coreos-32.20200923.3.0-live-rootfs.x86_64.img
├── fedora-coreos-32.20200923.3.0-metal.x86_64.raw.xz
└── fedora-coreos-32.20200923.3.0-metal.x86_64.raw.xz.sig
get-flatcar
Run the get-flatcar script to download Flatcar Linux images, verify them, and move them into examples/assets.
./scripts/get-flatcar
./scripts/get-flatcar channel version dest
This will create:
examples/assets/flatcar/
└── 2605.6.0
├── Flatcar_Image_Signing_Key.asc
├── flatcar_production_image.bin.bz2
├── flatcar_production_image.bin.bz2.sig
├── flatcar_production_pxe_image.cpio.gz
├── flatcar_production_pxe_image.cpio.gz.sig
├── flatcar_production_pxe.vmlinuz
├── flatcar_production_pxe.vmlinuz.sig
└── version.txt
libvirt
Create QEMU/KVM VMs 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 create QEMU/KVM nodes on the docker0 bridge
start start the QEMU/KVM nodes
reboot reboot the QEMU/KVM nodes
shutdown shutdown the QEMU/KVM nodes
poweroff poweroff the QEMU/KVM nodes
destroy destroy the QEMU/KVM nodes
k8s-certgen
Generate TLS certificates needed for a multi-node Kubernetes cluster. See the examples.
$ ./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. node1.example.com)
-m MASTERS Controller Node Names/Addresses in SAN format (e.g. IP.1=10.3.0.1,DNS.1=node1.example.com)
-w WORKERS Worker Node Names/Addresses in SAN format (e.g. DNS.1=node2.example.com,DNS.2=node3.example.com)
-h Show help