kubernetes-bootstrapping/00-provisioning/helpers.sh

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#!/bin/bash
# Terraform? We roll our own.
# Stop git bash being stupid
export MSYS_NO_PATHCONV=1
# Set your own
VBOXMANAGE="C:/Program Files/Oracle/VirtualBox/vboxmanage"
2024-02-25 19:25:19 +00:00
COREOSAPPLIANCEIMAGE="E:/VirtualBox/Images/fedora-coreos-39.20240128.3.0-virtualbox.x86_64.ova"
# Function to create VirtualBox VM, accepts name of VM as argument
create_vbox_vm() {
if [ -z "$1" ] || [ -z "$2" ]; then
echo "error: create_vm() called without specifying a VM name"
echo "Usage: create_vm <name> <MAC Address>"
echo "Example: create_vm kube_control01 \"08:00:27:00:00:01\""
return
fi
"$VBOXMANAGE" import --vsys 0 --vmname "$1" $COREOSAPPLIANCEIMAGE
"$VBOXMANAGE" modifyvm $1 --nic1 bridged
"$VBOXMANAGE" modifyvm $1 --bridge-adapter1 "Intel(R) Ethernet Controller I225-V"
"$VBOXMANAGE" modifyvm $1 --macaddress1 $2
"$VBOXMANAGE" guestproperty set $1 "/Ignition/Config" "$(cat ignition/$1-boot.json)"
"$VBOXMANAGE" startvm $1 --type headless
}
# Templating for Butane files to replace hostname with name passed
# to lighter, then it calls butane to generate ignition files
# It's "lighter" than using jinja or some other bloat ;)
# This allows us to re-use the same butane YAML files for multiple hosts,
# we can substitute values with whatever we want.
lighter() {
if [ -z "$1" ]; then
echo "error: lighter() called without specifying a VM name"
echo "Usage: lighter() <name>"
return
fi
# Create temporary working copies
cp butane/boot.yaml butane/boot~.yaml
cp butane/full.yaml butane/full~.yaml
# Replace hostname token with name provided
hostnameToken="{{HOSTNAME}}"
sed -i -e "s/$hostnameToken/$1/g" butane/boot~.yaml
sed -i -e "s/$hostnameToken/$1/g" butane/full~.yaml
# Butane transpile to ignition files
butane butane/boot~.yaml > ignition/$1-boot.json
butane butane/full~.yaml > ignition/$1-full.json
# Cleanup mess
rm -f butane/*~.yaml
}