install_k3s_with_ghcr_config.sh

#!/bin/bash -eux

if [[ $UID != 0 ]]; then
  echo "Please run this script with sudo"
  exit 1
fi

REGISTRIES_YAML_PATH=/etc/rancher/k3s/registries.yaml

if [ -e $REGISTRIES_YAML_PATH ]; then
  echo "${REGISTRIES_YAML_PATH} already exists" 1>&2
  exit 1
fi

if [ $# -ne 2 ]; then
  echo "Usage: ${0##*/} USER_NAME PASSWORD" 1>&2
  exit 1
fi

USERNAME=$1
PASSWORD=$2

mkdir -p ${REGISTRIES_YAML_PATH%/*}

cat << EOS > $REGISTRIES_YAML_PATH
mirrors:
  ghcr:
    endpoint:
      - "https://ghcr.io"
configs:
  "ghcr.io":
    auth:
      username: $USERNAME
      password: $PASSWORD
EOS

curl -sfL https://get.k3s.io | sh -s - --kube-apiserver-arg service-node-port-range=1-65535