+++ /dev/null
-From 272e50d0b0262e49cdcaad42cdab57aad183d1c2 Mon Sep 17 00:00:00 2001
-From: goodraven
- <employee-pseudonym-7f597def-7eeb-47f8-b10a-0724f2ba59a9@google.com>
-Date: Thu, 3 May 2018 22:24:58 -0700
-Subject: [PATCH] Initial commit adding support for hetzner cloud
-
-This is based on the digital ocean backend. It also uses nixos-infect. I extended nixos-infect to be generic
-for both backends.
-
-Fixes #855
----
- examples/trivial-hetzner-cloud.nix | 12 ++
- nix/eval-machine-info.nix | 1 +
- nix/hetzner-cloud.nix | 56 +++++++
- nix/options.nix | 1 +
- nixops/backends/hetzner_cloud.py | 230 +++++++++++++++++++++++++++++
- nixops/data/nixos-infect | 77 +++++++---
- 6 files changed, 354 insertions(+), 23 deletions(-)
- create mode 100644 examples/trivial-hetzner-cloud.nix
- create mode 100644 nix/hetzner-cloud.nix
- create mode 100644 nixops/backends/hetzner_cloud.py
-
-diff --git a/examples/trivial-hetzner-cloud.nix b/examples/trivial-hetzner-cloud.nix
-new file mode 100644
-index 000000000..c61add6bb
---- /dev/null
-+++ b/examples/trivial-hetzner-cloud.nix
-@@ -0,0 +1,12 @@
-+{
-+ resources.sshKeyPairs.ssh-key = {};
-+
-+ machine = { config, pkgs, ... }: {
-+ services.openssh.enable = true;
-+
-+ deployment.targetEnv = "hetznerCloud";
-+ deployment.hetznerCloud.serverType = "cx11";
-+
-+ networking.firewall.allowedTCPPorts = [ 22 ];
-+ };
-+}
-diff --git a/nix/eval-machine-info.nix b/nix/eval-machine-info.nix
-index 2884b4b47..6a7205786 100644
---- a/nix/eval-machine-info.nix
-+++ b/nix/eval-machine-info.nix
-@@ -309,6 +309,7 @@ rec {
- digitalOcean = optionalAttrs (v.config.deployment.targetEnv == "digitalOcean") v.config.deployment.digitalOcean;
- gce = optionalAttrs (v.config.deployment.targetEnv == "gce") v.config.deployment.gce;
- hetzner = optionalAttrs (v.config.deployment.targetEnv == "hetzner") v.config.deployment.hetzner;
-+ hetznerCloud = optionalAttrs (v.config.deployment.targetEnv == "hetznerCloud") v.config.deployment.hetznerCloud;
- container = optionalAttrs (v.config.deployment.targetEnv == "container") v.config.deployment.container;
- route53 = v.config.deployment.route53;
- virtualbox =
-diff --git a/nix/hetzner-cloud.nix b/nix/hetzner-cloud.nix
-new file mode 100644
-index 000000000..21d148c1a
---- /dev/null
-+++ b/nix/hetzner-cloud.nix
-@@ -0,0 +1,56 @@
-+{ config, pkgs, lib, utils, ... }:
-+
-+with utils;
-+with lib;
-+with import ./lib.nix lib;
-+
-+let
-+ cfg = config.deployment.hetznerCloud;
-+in
-+{
-+ ###### interface
-+ options = {
-+
-+ deployment.hetznerCloud.authToken = mkOption {
-+ default = "";
-+ example = "8b2f4e96af3997853bfd4cd8998958eab871d9614e35d63fab45a5ddf981c4da";
-+ type = types.str;
-+ description = ''
-+ The API auth token. We're checking the environment for
-+ <envar>HETZNER_CLOUD_AUTH_TOKEN</envar> first and if that is
-+ not set we try this auth token.
-+ '';
-+ };
-+
-+ deployment.hetznerCloud.datacenter = mkOption {
-+ example = "fsn1-dc8";
-+ default = null;
-+ type = types.nullOr types.str;
-+ description = ''
-+ The datacenter.
-+ '';
-+ };
-+
-+ deployment.hetznerCloud.location = mkOption {
-+ example = "fsn1";
-+ default = null;
-+ type = types.nullOr types.str;
-+ description = ''
-+ The location.
-+ '';
-+ };
-+
-+ deployment.hetznerCloud.serverType = mkOption {
-+ example = "cx11";
-+ type = types.str;
-+ description = ''
-+ Name or id of server types.
-+ '';
-+ };
-+ };
-+
-+ config = mkIf (config.deployment.targetEnv == "hetznerCloud") {
-+ nixpkgs.system = mkOverride 900 "x86_64-linux";
-+ services.openssh.enable = true;
-+ };
-+}
-diff --git a/nix/options.nix b/nix/options.nix
-index 0866c3ab8..db021f74d 100644
---- a/nix/options.nix
-+++ b/nix/options.nix
-@@ -22,6 +22,7 @@ in
- ./keys.nix
- ./gce.nix
- ./hetzner.nix
-+ ./hetzner-cloud.nix
- ./container.nix
- ./libvirtd.nix
- ];
-diff --git a/nixops/backends/hetzner_cloud.py b/nixops/backends/hetzner_cloud.py
-new file mode 100644
-index 000000000..a2cb176b9
---- /dev/null
-+++ b/nixops/backends/hetzner_cloud.py
-@@ -0,0 +1,230 @@
-+# -*- coding: utf-8 -*-
-+"""
-+A backend for hetzner cloud.
-+
-+This backend uses nixos-infect (which uses nixos LUSTRATE) to infect a
-+hetzner cloud instance. The setup requires two reboots, one for
-+the infect itself, another after we pushed the nixos image.
-+"""
-+import os
-+import os.path
-+import time
-+import socket
-+
-+import requests
-+
-+import nixops.resources
-+from nixops.backends import MachineDefinition, MachineState
-+from nixops.nix_expr import Function, RawValue
-+import nixops.util
-+import nixops.known_hosts
-+
-+infect_path = os.path.abspath(os.path.join(os.path.dirname(__file__), '..', 'data', 'nixos-infect'))
-+
-+API_HOST = 'api.hetzner.cloud'
-+
-+class ApiError(Exception):
-+ pass
-+
-+class ApiNotFoundError(ApiError):
-+ pass
-+
-+class HetznerCloudDefinition(MachineDefinition):
-+ @classmethod
-+ def get_type(cls):
-+ return "hetznerCloud"
-+
-+ def __init__(self, xml, config):
-+ MachineDefinition.__init__(self, xml, config)
-+ self.auth_token = config["hetznerCloud"]["authToken"]
-+ self.location = config["hetznerCloud"]["location"]
-+ self.datacenter = config["hetznerCloud"]["datacenter"]
-+ self.server_type = config["hetznerCloud"]["serverType"]
-+
-+ def show_type(self):
-+ return "{0} [{1}]".format(self.get_type(), self.location or self.datacenter or 'any location')
-+
-+
-+class HetznerCloudState(MachineState):
-+ @classmethod
-+ def get_type(cls):
-+ return "hetznerCloud"
-+
-+ state = nixops.util.attr_property("state", MachineState.MISSING, int) # override
-+ public_ipv4 = nixops.util.attr_property("publicIpv4", None)
-+ public_ipv6 = nixops.util.attr_property("publicIpv6", None)
-+ location = nixops.util.attr_property("hetznerCloud.location", None)
-+ datacenter = nixops.util.attr_property("hetznerCloud.datacenter", None)
-+ server_type = nixops.util.attr_property("hetznerCloud.serverType", None)
-+ auth_token = nixops.util.attr_property("hetznerCloud.authToken", None)
-+ server_id = nixops.util.attr_property("hetznerCloud.serverId", None, int)
-+
-+ def __init__(self, depl, name, id):
-+ MachineState.__init__(self, depl, name, id)
-+ self.name = name
-+
-+ def get_ssh_name(self):
-+ return self.public_ipv4
-+
-+ def get_ssh_flags(self, *args, **kwargs):
-+ super_flags = super(HetznerCloudState, self).get_ssh_flags(*args, **kwargs)
-+ return super_flags + [
-+ '-o', 'UserKnownHostsFile=/dev/null',
-+ '-o', 'StrictHostKeyChecking=no',
-+ '-i', self.get_ssh_private_key_file(),
-+ ]
-+
-+ def get_physical_spec(self):
-+ return Function("{ ... }", {
-+ 'imports': [ RawValue('<nixpkgs/nixos/modules/profiles/qemu-guest.nix>') ],
-+ ('boot', 'loader', 'grub', 'device'): 'nodev',
-+ ('fileSystems', '/'): { 'device': '/dev/sda1', 'fsType': 'ext4'},
-+ ('users', 'extraUsers', 'root', 'openssh', 'authorizedKeys', 'keys'): [self.depl.active_resources.get('ssh-key').public_key],
-+ })
-+
-+ def get_ssh_private_key_file(self):
-+ return self.write_ssh_private_key(self.depl.active_resources.get('ssh-key').private_key)
-+
-+ def create_after(self, resources, defn):
-+ # make sure the ssh key exists before we do anything else
-+ return {
-+ r for r in resources if
-+ isinstance(r, nixops.resources.ssh_keypair.SSHKeyPairState)
-+ }
-+
-+ def get_auth_token(self):
-+ return os.environ.get('HETZNER_CLOUD_AUTH_TOKEN', self.auth_token)
-+
-+ def _api(self, path, method=None, data=None, json=True):
-+ """Basic wrapper around requests that handles auth and serialization."""
-+ assert path[0] == '/'
-+ url = 'https://%s%s' % (API_HOST, path)
-+ token = self.get_auth_token()
-+ if not token:
-+ raise Exception('No hetzner cloud auth token set')
-+ headers = {
-+ 'Authorization': 'Bearer '+self.get_auth_token(),
-+ }
-+ res = requests.request(
-+ method=method,
-+ url=url,
-+ json=data,
-+ headers=headers)
-+
-+ if res.status_code == 404:
-+ raise ApiNotFoundError('Not Found: %r' % path)
-+ elif not res.ok:
-+ raise ApiError('Response for %s %s has status code %d: %s' % (method, path, res.status_code, res.content))
-+ if not json:
-+ return
-+ try:
-+ res_data = res.json()
-+ except ValueError as e:
-+ raise ApiError('Response for %s %s has invalid JSON (%s): %r' % (method, path, e, res.content))
-+ return res_data
-+
-+
-+ def destroy(self, wipe=False):
-+ if not self.server_id:
-+ self.log('server {} was never made'.format(self.name))
-+ return
-+ self.log('destroying server {} with id {}'.format(self.name, self.server_id))
-+ try:
-+ res = self._api('/v1/servers/%s' % (self.server_id), method='DELETE')
-+ except ApiNotFoundError:
-+ self.log("server not found - assuming it's been destroyed already")
-+
-+ self.public_ipv4 = None
-+ self.server_id = None
-+
-+ return True
-+
-+ def _create_ssh_key(self, public_key):
-+ """Create or get an ssh key and return an id."""
-+ public_key = public_key.strip()
-+ res = self._api('/v1/ssh_keys', method='GET')
-+ name = 'nixops-%s-%s' % (self.depl.uuid, self.name)
-+ deletes = []
-+ for key in res['ssh_keys']:
-+ if key['public_key'].strip() == public_key:
-+ return key['id']
-+ if key['name'] == name:
-+ deletes.append(key['id'])
-+ for d in deletes:
-+ # This reply is empty, so don't decode json.
-+ self._api('/v1/ssh_keys/%d' % d, method='DELETE', json=False)
-+ res = self._api('/v1/ssh_keys', method='POST', data={
-+ 'name': name,
-+ 'public_key': public_key,
-+ })
-+ return res['ssh_key']['id']
-+
-+ def create(self, defn, check, allow_reboot, allow_recreate):
-+ ssh_key = self.depl.active_resources.get('ssh-key')
-+ if ssh_key is None:
-+ raise Exception('Please specify a ssh-key resource (resources.sshKeyPairs.ssh-key = {}).')
-+
-+ self.set_common_state(defn)
-+
-+ if self.server_id is not None:
-+ return
-+
-+ ssh_key_id = self._create_ssh_key(ssh_key.public_key)
-+
-+ req = {
-+ 'name': self.name,
-+ 'server_type': defn.server_type,
-+ 'start_after_create': True,
-+ 'image': 'debian-9',
-+ 'ssh_keys': [
-+ ssh_key_id,
-+ ],
-+ }
-+
-+ if defn.datacenter:
-+ req['datacenter'] = defn.datacenter
-+ elif defn.location:
-+ req['location'] = defn.location
-+
-+ self.log_start("creating server ...")
-+ create_res = self._api('/v1/servers', method='POST', data=req)
-+ self.server_id = create_res['server']['id']
-+ self.public_ipv4 = create_res['server']['public_net']['ipv4']['ip']
-+ self.public_ipv6 = create_res['server']['public_net']['ipv6']['ip']
-+ self.datacenter = create_res['server']['datacenter']['name']
-+ self.location = create_res['server']['datacenter']['location']['name']
-+
-+ action = create_res['action']
-+ action_path = '/v1/servers/%d/actions/%d' % (self.server_id, action['id'])
-+
-+ while action['status'] == 'running':
-+ time.sleep(1)
-+ res = self._api(action_path, method='GET')
-+ action = res['action']
-+
-+ if action['status'] != 'success':
-+ raise Exception('unexpected status: %s' % action['status'])
-+
-+ self.log_end("{}".format(self.public_ipv4))
-+
-+ self.wait_for_ssh()
-+ self.log_start("running nixos-infect")
-+ self.run_command('bash </dev/stdin 2>&1', stdin=open(infect_path))
-+ self.reboot_sync()
-+
-+ def reboot(self, hard=False):
-+ if hard:
-+ self.log("sending hard reset to server...")
-+ res = self._api('/v1/servers/%d/actions/reset' % self.server_id, method='POST')
-+ action = res['action']
-+ action_path = '/v1/servers/%d/actions/%d' % (self.server_id, action['id'])
-+ while action['status'] == 'running':
-+ time.sleep(1)
-+ res = self._api(action_path, method='GET')
-+ action = res['action']
-+ if action['status'] != 'success':
-+ raise Exception('unexpected status: %s' % action['status'])
-+ self.wait_for_ssh()
-+ self.state = self.STARTING
-+ else:
-+ MachineState.reboot(self, hard=hard)
-diff --git a/nixops/data/nixos-infect b/nixops/data/nixos-infect
-index 66634357b..437a2ec61 100644
---- a/nixops/data/nixos-infect
-+++ b/nixops/data/nixos-infect
-@@ -68,26 +68,49 @@ makeConf() {
- }
- EOF
- # (nixos-generate-config will add qemu-user and bind-mounts, so avoid)
-+ local disk
-+ if [ -e /dev/sda ]; then
-+ disk=/dev/sda
-+ else
-+ disk=/dev/vda
-+ fi
- cat > /etc/nixos/hardware-configuration.nix << EOF
- { ... }:
- {
- imports = [ <nixpkgs/nixos/modules/profiles/qemu-guest.nix> ];
-- boot.loader.grub.device = "/dev/vda";
-- fileSystems."/" = { device = "/dev/vda1"; fsType = "ext4"; };
-+ boot.loader.grub.device = "${disk}";
-+ fileSystems."/" = { device = "${disk}1"; fsType = "ext4"; };
- }
- EOF
-
- local IFS=$'\n'
-- ens3_ip4s=($(ip address show dev eth0 | grep 'inet ' | sed -r 's|.*inet ([0-9.]+)/([0-9]+).*|{ address="\1"; prefixLength=\2; }|'))
-- ens3_ip6s=($(ip address show dev eth0 | grep 'inet6 .*global' | sed -r 's|.*inet6 ([0-9a-f:]+)/([0-9]+).*|{ address="\1"; prefixLength=\2; }|'))
-- ens4_ip4s=($(ip address show dev eth1 | grep 'inet ' | sed -r 's|.*inet ([0-9.]+)/([0-9]+).*|{ address="\1"; prefixLength=\2; }|'))
-- ens4_ip6s=($(ip address show dev eth1 | grep 'inet6 .*global' | sed -r 's|.*inet6 ([0-9a-f:]+)/([0-9]+).*|{ address="\1"; prefixLength=\2; }|'))
-- gateway=($(ip route show dev eth0 | grep default | sed -r 's|default via ([0-9.]+).*|\1|'))
-- gateway6=($(ip -6 route show dev eth0 | grep default | sed -r 's|default via ([0-9a-f:]+).*|\1|'))
-- ether0=($(ip address show dev eth0 | grep link/ether | sed -r 's|.*link/ether ([0-9a-f:]+) .*|\1|'))
-- ether1=($(ip address show dev eth1 | grep link/ether | sed -r 's|.*link/ether ([0-9a-f:]+) .*|\1|'))
-+ gateway=($(ip route show | grep default | sed -r 's|default via ([0-9.]+).*|\1|'))
-+ gateway6=($(ip -6 route show | grep default | sed -r 's|default via ([0-9a-f:]+).*|\1|'))
-+ interfaces=($(ip link | awk -F ': ' '/^[0-9]*: / {if ($2 != "lo") {print $2}}'))
- nameservers=($(grep ^nameserver /etc/resolv.conf | cut -f2 -d' '))
-
-+ # Predict the predictable name for each interface since that is enabled in
-+ # the nixos system.
-+ declare -A predictable_names
-+ for interface in ${interfaces[@]}; do
-+ # udevadm prints out the candidate names which will be selected if
-+ # available in this order.
-+ local name=$(udevadm info /sys/class/net/$interface | awk -F = '
-+ /^E: ID_NET_NAME_FROM_DATABASE=/ {arr[1]=$2}
-+ /^E: ID_NET_NAME_ONBOARD=/ {arr[2]=$2}
-+ /^E: ID_NET_NAME_SLOT=/ {arr[3]=$2}
-+ /^E: ID_NET_NAME_PATH=/ {arr[4]=$2}
-+ /^E: ID_NET_NAME_MAC=/ {arr[5]=$2}
-+ END {for (i=1;i<6;i++) {if (length(arr[i]) > 0) { print arr[i]; break}}}')
-+ if [ -z "$name" ]; then
-+ echo Could not determine predictable name for interface $interface
-+ fi
-+ predictable_names[$interface]=$name
-+ done
-+
-+ # Take a gamble on the first interface being able to reach the gateway.
-+ local default_interface=${predictable_names[${interfaces[0]}]}
-+
- cat > /etc/nixos/networking.nix << EOF
- { ... }: {
- # This file was populated at runtime with the networking
-@@ -96,25 +119,27 @@ EOF
- nameservers = [$(for a in ${nameservers[@]}; do echo -n "
- \"$a\""; done)
- ];
-- defaultGateway = "${gateway}";
-- defaultGateway6 = "${gateway6}";
-+ defaultGateway = {address = "${gateway}"; interface = "${default_interface}";};
-+ defaultGateway6 = {address = "${gateway6}"; interface = "${default_interface}";};
- interfaces = {
-- ens3 = {
-- ip4 = [$(for a in ${ens3_ip4s[@]}; do echo -n "
-- $a"; done)
-- ];
-- ip6 = [$(for a in ${ens3_ip6s[@]}; do echo -n "
-- $a"; done)
-- ];
-- };
-- ens4 = {
-- ip4 = [$(for a in ${ens4_ip4s[@]}; do echo -n "
-+EOF
-+
-+ for interface in ${interfaces[@]}; do
-+ ip4s=($(ip address show dev $interface | grep 'inet ' | sed -r 's|.*inet ([0-9.]+)/([0-9]+).*|{ address="\1"; prefixLength=\2; }|'))
-+ ip6s=($(ip address show dev $interface | grep 'inet6 .*global' | sed -r 's|.*inet6 ([0-9a-f:]+)/([0-9]+).*|{ address="\1"; prefixLength=\2; }|'))
-+ cat >> /etc/nixos/networking.nix << EOF
-+ ${predictable_names[$interface]} = {
-+ ip4 = [$(for a in ${ip4s[@]}; do echo -n "
- $a"; done)
- ];
-- ip6 = [$(for a in ${ens4_ip6s[@]}; do echo -n "
-+ ip6 = [$(for a in ${ip6s[@]}; do echo -n "
- $a"; done)
- ];
- };
-+EOF
-+ done
-+
-+ cat >> /etc/nixos/networking.nix << EOF
- };
- };
- }
-@@ -154,6 +179,12 @@ export HOME="/root"
- groupadd -r nixbld -g 30000
- seq 1 10 | xargs -I{} useradd -c "Nix build user {}" -d /var/empty -g nixbld -G nixbld -M -N -r -s `which nologin` nixbld{}
-
-+if ! which curl >/dev/null 2>/dev/null; then
-+ if which apt-get >/dev/null 2>/dev/null; then
-+ apt-get update && apt-get install -y curl
-+ fi
-+fi
-+
- curl https://nixos.org/nix/install | sh
-
- source ~/.nix-profile/etc/profile.d/nix.sh
projects / perso / Immae / Config / Nix.git / blobdiff