commit 6db67186f2ea8dd6cd5fb3a048dd9facd749c81a · pyrox.dev/nixpkgs

+170

nixos/modules/virtualisation/azure-agent.nix

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       { config, lib, pkgs, ... }:

     

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       with lib;

     

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       let

     

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         cfg = config.virtualisation.azure.agent;

     

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         waagent = with pkgs; stdenv.mkDerivation rec {

     

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           name = "waagent-2.0";

     

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           src = pkgs.fetchgit {

     

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             url = https://github.com/Phreedom/WALinuxAgent.git;

     

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             rev = "9dba81c7b1239c7971ec96e405e403c7cd224e6b";

     

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             sha256 = "0khxk3ns3z37v26f2qj6m3m698a0vqpc9bxg5p7fyr3xza5gzwhs";

     

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           };

     

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           buildInputs = [ makeWrapper python pythonPackages.wrapPython ];

     

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           runtimeDeps = [ findutils gnugrep gawk coreutils openssl openssh

     

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                           nettools # for hostname

     

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                           procps # for pidof

     

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                           shadow # for useradd, usermod

     

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                           utillinux # for (u)mount, fdisk, sfdisk, mkswap

     

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                           parted

     

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                         ];

     

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           pythonPath = [ pythonPackages.pyasn1 ];

     

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           configurePhase = false;

     

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           buildPhase = false;

     

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           installPhase = ''

     

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             substituteInPlace config/99-azure-product-uuid.rules \

     

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                 --replace /bin/chmod "${coreutils}/bin/chmod"

     

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             mkdir -p $out/lib/udev/rules.d

     

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             cp config/*.rules $out/lib/udev/rules.d

     

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             mkdir -p $out/bin

     

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             cp waagent $out/bin/

     

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             chmod +x $out/bin/waagent

     

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             wrapProgram "$out/bin/waagent" \

     

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                 --prefix PYTHONPATH : $PYTHONPATH \

     

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                 --prefix PATH : "${makeSearchPath "bin" runtimeDeps}"

     

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           '';

     

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         };

     

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         provisionedHook = pkgs.writeScript "provisioned-hook" ''

     

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           #!${pkgs.stdenv.shell}

     

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           ${config.systemd.package}/bin/systemctl start provisioned.target

     

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         '';

     

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       in

     

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       {

     

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         ###### interface

     

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         options.virtualisation.azure.agent.enable = mkOption {

     

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           default = false;

     

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           description = "Whether to enable the Windows Azure Linux Agent.";

     

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         };

     

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         ###### implementation

     

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         config = mkIf cfg.enable {

     

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           assertions = [ {

     

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             assertion = pkgs.stdenv.isi686 || pkgs.stdenv.isx86_64;

     

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             message = "Azure not currently supported on ${pkgs.stdenv.system}";

     

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           } {

     

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             assertion = config.networking.networkmanager.enable == false;

     

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             message = "Windows Azure Linux Agent is not compatible with NetworkManager";

     

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           } ];

     

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           boot.initrd.kernelModules = [ "ata_piix" ];

     

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           networking.firewall.allowedUDPPorts = [ 68 ];

     

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           environment.etc."waagent.conf".text = ''

     

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               #

     

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               # Windows Azure Linux Agent Configuration

     

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               #

     

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               Role.StateConsumer=${provisionedHook}

     

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               # Enable instance creation

     

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               Provisioning.Enabled=y

     

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               # Password authentication for root account will be unavailable.

     

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               Provisioning.DeleteRootPassword=n

     

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               # Generate fresh host key pair.

     

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               Provisioning.RegenerateSshHostKeyPair=y

     

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               # Supported values are "rsa", "dsa" and "ecdsa".

     

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               Provisioning.SshHostKeyPairType=ed25519

     

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               # Monitor host name changes and publish changes via DHCP requests.

     

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               Provisioning.MonitorHostName=y

     

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               # Decode CustomData from Base64.

     

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               Provisioning.DecodeCustomData=n

     

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               # Execute CustomData after provisioning.

     

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               Provisioning.ExecuteCustomData=n

     

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               # Format if unformatted. If 'n', resource disk will not be mounted.

     

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               ResourceDisk.Format=y

     

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               # File system on the resource disk

     

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               # Typically ext3 or ext4. FreeBSD images should use 'ufs2' here.

     

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               ResourceDisk.Filesystem=ext4

     

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               # Mount point for the resource disk

     

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               ResourceDisk.MountPoint=/mnt/resource

     

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               # Respond to load balancer probes if requested by Windows Azure.

     

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               LBProbeResponder=y

     

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               # Enable logging to serial console (y|n)

     

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               # When stdout is not enough...

     

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               # 'y' if not set

     

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               Logs.Console=y

     

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               # Enable verbose logging (y|n)

     

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               Logs.Verbose=n

     

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               # Root device timeout in seconds.

     

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               OS.RootDeviceScsiTimeout=300

     

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           '';

     

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           services.udev.packages = [ waagent ];

     

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           networking.dhcpcd.persistent = true;

     

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           services.logrotate = {

     

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             enable = true;

     

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             config = ''

     

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               /var/log/waagent.log {

     

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                   compress

     

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                   monthly

     

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                   rotate 6

     

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                   notifempty

     

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                   missingok

     

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               }

     

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             '';

     

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           };

     

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           systemd.targets.provisioned = {

     

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             description = "Services Requiring Azure VM provisioning to have finished";

     

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             wantedBy = [ "sshd.service" ];

     

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             before = [ "sshd.service" ];

     

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           };

     

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           systemd.services.waagent = {

     

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             wantedBy = [ "sshd.service" ];

     

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             before = [ "sshd.service" ];

     

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             after = [ "ip-up.target" ];

     

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             wants = [ "ip-up.target" ];

     

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             path = [ pkgs.e2fsprogs ];

     

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             description = "Windows Azure Agent Service";

     

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             unitConfig.ConditionPathExists = "/etc/waagent.conf";

     

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             serviceConfig = {

     

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               ExecStart = "${waagent}/bin/waagent -daemon";

     

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               Type = "simple";

     

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             };

     

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           };

     

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         };

     

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       }

nixos/modules/virtualisation/azure-common.nix

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       {

     

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         imports = [ ../profiles/headless.nix ];

     

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         require = [ ./azure-agent.nix ];

     

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         virtualisation.azure.agent.enable = true;

     

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         boot.kernelParams = [ "console=ttyS0" "earlyprintk=ttyS0" "rootdelay=300" "panic=1" "boot.panic_on_fail" ];

     

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         boot.initrd.kernelModules = [ "hv_vmbus" "hv_netvsc" "hv_utils" "hv_storvsc" ];

     

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