nova: rip
part of openstack cleanup
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@@ -1,174 +0,0 @@
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# Module for Nova, a.k.a. OpenStack Compute.
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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.nova;
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nova = pkgs.nova;
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novaConf = pkgs.writeText "nova.conf"
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''
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--nodaemon
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--verbose
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${cfg.extraConfig}
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'';
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in
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{
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###### interface
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options = {
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virtualisation.nova.enableSingleNode =
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mkOption {
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default = false;
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description =
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''
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This option enables Nova, also known as OpenStack Compute,
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a cloud computing system, as a single-machine
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installation. That is, all of Nova's components are
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enabled on this machine, using SQLite as Nova's database.
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This is useful for evaluating and experimenting with Nova.
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However, for a real cloud computing environment, you'll
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want to enable some of Nova's services on other machines,
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and use a database such as MySQL.
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'';
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};
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virtualisation.nova.extraConfig =
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mkOption {
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default = "";
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description =
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''
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Additional text appended to <filename>nova.conf</filename>,
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the main Nova configuration file.
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'';
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};
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};
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###### implementation
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config = mkIf cfg.enableSingleNode {
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environment.systemPackages = [ nova pkgs.euca2ools pkgs.novaclient ];
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environment.etc =
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[ { source = novaConf;
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target = "nova/nova.conf";
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}
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];
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# Nova requires libvirtd and RabbitMQ.
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virtualisation.libvirtd.enable = true;
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services.rabbitmq.enable = true;
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# `qemu-nbd' required the `nbd' kernel module.
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boot.kernelModules = [ "nbd" ];
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system.activationScripts.nova =
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''
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mkdir -m 755 -p /var/lib/nova
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mkdir -m 755 -p /var/lib/nova/networks
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mkdir -m 700 -p /var/lib/nova/instances
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mkdir -m 700 -p /var/lib/nova/keys
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# Allow the CA certificate generation script (called by
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# nova-api) to work.
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mkdir -m 700 -p /var/lib/nova/CA /var/lib/nova/CA/private
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# Initialise the SQLite database.
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${nova}/bin/nova-manage db sync
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'';
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# `nova-api' receives and executes external client requests from
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# tools such as euca2ools. It listens on port 8773 (XML) and 8774
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# (JSON).
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jobs.nova_api =
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{ name = "nova-api";
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description = "Nova API service";
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startOn = "ip-up";
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# `openssl' is required to generate the CA. `openssh' is
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# required to generate key pairs.
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path = [ pkgs.openssl config.programs.ssh.package pkgs.bash ];
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respawn = false;
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exec = "${nova}/bin/nova-api --flagfile=${novaConf} --api_paste_config=${nova}/etc/nova/api-paste.ini";
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};
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# `nova-objectstore' is a simple image server. Useful if you're
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# not running the OpenStack Imaging Service (Swift). It serves
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# images placed in /var/lib/nova/images/.
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jobs.nova_objectstore =
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{ name = "nova-objectstore";
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description = "Nova Simple Object Store Service";
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startOn = "ip-up";
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preStart =
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''
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mkdir -m 700 -p /var/lib/nova/images
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'';
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exec = "${nova}/bin/nova-objectstore --flagfile=${novaConf}";
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};
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# `nova-scheduler' schedules VM execution requests.
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jobs.nova_scheduler =
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{ name = "nova-scheduler";
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description = "Nova Scheduler Service";
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startOn = "ip-up";
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exec = "${nova}/bin/nova-scheduler --flagfile=${novaConf}";
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};
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# `nova-compute' starts and manages virtual machines.
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jobs.nova_compute =
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{ name = "nova-compute";
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description = "Nova Compute Service";
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startOn = "ip-up";
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path =
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[ pkgs.sudo pkgs.vlan pkgs.nettools pkgs.iptables pkgs.qemu_kvm
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pkgs.e2fsprogs pkgs.utillinux pkgs.multipath-tools pkgs.iproute
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pkgs.bridge-utils
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];
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exec = "${nova}/bin/nova-compute --flagfile=${novaConf}";
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};
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# `nova-network' manages networks and allocates IP addresses.
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jobs.nova_network =
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{ name = "nova-network";
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description = "Nova Network Service";
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startOn = "ip-up";
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path =
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[ pkgs.sudo pkgs.vlan pkgs.dnsmasq pkgs.nettools pkgs.iptables
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pkgs.iproute pkgs.bridge-utils pkgs.radvd
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];
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exec = "${nova}/bin/nova-network --flagfile=${novaConf}";
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};
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};
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}
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