terraform-hcloud-kube-hetzner/modules/host/locals.tf

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locals {
ssh_public_key = trimspace(file(var.public_key))
# ssh_private_key is either the contents of var.private_key or null to use a ssh agent.
ssh_private_key = var.private_key == null ? null : trimspace(file(var.private_key))
# ssh_identity is not set if the private key is passed directly, but if ssh agent is used, the public key tells ssh agent which private key to use.
# For terraforms provisioner.connection.agent_identity, we need the public key as a string.
ssh_identity = var.private_key == null ? local.ssh_public_key : null
# ssh_identity_file is used for ssh "-i" flag, its the private key if that is set, or a public key file
# if an ssh agent is used.
ssh_identity_file = var.private_key == null ? var.public_key : var.private_key
# shared flags for ssh to ignore host keys, to use our ssh identity file for all connections during provisioning.
ssh_args = "-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i ${local.ssh_identity_file}"
microOS_install_commands = [
"set -ex",
"apt-get update",
"apt-get install -y aria2",
"aria2c --follow-metalink=mem https://download.opensuse.org/tumbleweed/appliances/openSUSE-MicroOS.x86_64-kvm-and-xen.qcow2.meta4",
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"qemu-img convert -p -f qcow2 -O host_device $(ls -a | grep -ie '^opensuse.*microos.*qcow2$') /dev/sda",
"sgdisk -e /dev/sda",
"parted -s /dev/sda resizepart 4 99%",
"parted -s /dev/sda mkpart primary ext2 99% 100%",
"partprobe /dev/sda && udevadm settle && fdisk -l /dev/sda",
"mount /dev/sda4 /mnt/ && btrfs filesystem resize max /mnt && umount /mnt",
"mke2fs -L ignition /dev/sda5",
"mount /dev/sda5 /mnt",
"mkdir /mnt/ignition",
"cp /root/config.ign /mnt/ignition/config.ign",
"mkdir /mnt/combustion",
"cp /root/script /mnt/combustion/script",
"umount /mnt"
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]
ignition_config = jsonencode({
ignition = {
version = "3.0.0"
}
passwd = {
users = [{
name = "root"
sshAuthorizedKeys = concat([local.ssh_public_key], var.additional_public_keys)
}]
}
storage = {
files = [
{
path = "/etc/sysconfig/network/ifcfg-eth1"
mode = 420
overwrite = true
contents = { "source" = "data:,BOOTPROTO%3D%27dhcp%27%0ASTARTMODE%3D%27auto%27" }
},
{
path = "/etc/ssh/sshd_config.d/kube-hetzner.conf"
mode = 420
overwrite = true
contents = { "source" = "data:,PasswordAuthentication%20no%0AX11Forwarding%20no%0AMaxAuthTries%202%0AAllowTcpForwarding%20no%0AAllowAgentForwarding%20no%0AAuthorizedKeysFile%20.ssh%2Fauthorized_keys" }
}
]
}
})
combustion_script = <<EOF
#!/bin/bash
sed -i 's#NETCONFIG_NIS_SETDOMAINNAME="yes"#NETCONFIG_NIS_SETDOMAINNAME="no"#g' /etc/sysconfig/network/config
sed -i 's#WAIT_FOR_INTERFACES="30"#WAIT_FOR_INTERFACES="60"#g' /etc/sysconfig/network/config
sed -i 's#CHECK_DUPLICATE_IP="yes"#CHECK_DUPLICATE_IP="no"#g' /etc/sysconfig/network/config
# combustion: network
rpm --import https://rpm.rancher.io/public.key
zypper refresh
zypper --gpg-auto-import-keys install -y https://rpm.rancher.io/k3s/stable/common/microos/noarch/k3s-selinux-0.4-1.sle.noarch.rpm
udevadm settle || true
EOF
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}