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* Add an option ‘deployment.ec2.zone’. For EC2 deployments, this

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automatically sets ‘deployment.ec2.controller’ and
  ‘deployment.ec2.ami’ to sensible values.

svn path=/nixos/trunk/; revision=30005
This commit is contained in:
Eelco Dolstra 2011-10-25 01:59:39 +00:00
parent 49adbed510
commit a82bfec343
2 changed files with 43 additions and 3 deletions
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44
modules/misc/deployment.nix
View file

@ -2,6 +2,8 @@
with pkgs.lib;
let cfg = config.deployment; in
{
options = {
@ -49,15 +51,31 @@ with pkgs.lib;
};
deployment.ec2.controller = mkOption {
example = https://ec2.eu-west-1.amazonaws.com:443/;
example = https://ec2.eu-west-1.amazonaws.com/;
type = types.uniq types.string;
description = ''
URI of an Amazon EC2-compatible cloud controller web service,
used to create and manage virtual machines.
used to create and manage virtual machines. If you're using
EC2, it's more convenient to set
<option>deployment.ec2.zone</option>.
'';
};
deployment.ec2.zone = mkOption {
default = "";
example = "us-east-1";
type = types.uniq types.string;
description = ''
Amazon EC2 zone in which the instance is to be deployed. This
option only applies when using EC2. It implicitly sets
<option>deployment.ec2.controller</option> and
<option>deployment.ec2.ami</option>.
'';
};
deployment.ec2.ami = mkOption {
example = "ami-ecb49e98";
type = types.uniq types.string;
description = ''
EC2 identifier of the AMI disk image used in the virtual
machine. This must be a NixOS image providing SSH access.
@ -67,6 +85,7 @@ with pkgs.lib;
deployment.ec2.instanceType = mkOption {
default = "m1.small";
example = "m1.large";
type = types.uniq types.string;
description = ''
EC2 instance type. See <link
xlink:href='http://aws.amazon.com/ec2/instance-types/'/> for a
@ -128,4 +147,25 @@ with pkgs.lib;
};
};
config = {
deployment.ec2 = mkIf (cfg.ec2.zone != "") {
controller = mkDefault "https://ec2.${cfg.ec2.zone}.amazonaws.com/";
ami = mkDefault (
if cfg.ec2.zone == "eu-west-1" && config.nixpkgs.system == "i686-linux" then "ami-c9f2d8bd" else
if cfg.ec2.zone == "eu-west-1" && config.nixpkgs.system == "x86_64-linux" then "ami-ecb49e98" else
if cfg.ec2.zone == "us-east-1" && config.nixpkgs.system == "x86_64-linux" then "ami-d93bf4b0" else
# !!! Doesn't work, not lazy enough.
# throw "I don't know an AMI for zone ‘${cfg.ec2.zone}’ and platform type ‘${config.nixpkgs.system}’"
"");
};
};
}

2
modules/misc/nixpkgs.nix
View file

@ -59,7 +59,7 @@ in
};
nixpkgs.system = mkOption {
default = "";
default = pkgs.stdenv.system;
description = ''
Specifies the Nix platform type for which NixOS should be built.
If unset, it defaults to the platform type of your host system