Hi Gergely,
> Do we have some Amazon EC2 AMI that is ready to go for the whole nixpkgs
> stuff and web interface and everything?
The problem with hydra.nixos.org is that the machine is so overloaded
that it manages only ~1 evaluation per day. This means that you'll have
to wait a day or two before you get feedback for a commit.
I used the nixops configuration attached below to spawn my own Hydra in
EC2. I haven't run it in a while, though, so it may have bit-rotted a
little. Anyway, I hope it helps.
Peter
{
network.description = "Hydra Build Slave";
machine = { config, pkgs, ... }: {
require = [ /home/simons/src/hydra/hydra-module.nix ];
nix = {
extraOptions = ''
trusted-binary-caches = http://hydra.nixos.org http://hydra.cryp.to
build-cores = 0
'';
maxJobs = 4; # this needs to be customized
useChroot = true;
};
time.timeZone = "Europe/Berlin";
environment.enableBashCompletion = true;
i18n.defaultLocale = "en_US.UTF-8";
users.extraUsers.hydra = {
openssh.authorizedKeys.keyFiles = [ ./id_buildfarm.pub
/home/simons/.ssh/id_dsa.pub ];
password = "open sesame";
};
environment.etc = [
{ target = "nix/signing-key.pub"; source = ./nix-signing-key.pub; }
];
services.openssh.usePAM = false;
services.openssh.passwordAuthentication = false;
services.nixosManual.showManual = false;
services.ttyBackgrounds.enable = false;
services.hydra = {
enable = true;
hydra = ((import /home/simons/src/hydra/release.nix {})).build {};
hydraURL = "http://hydra.cryp.to";;
notificationSender = "[email protected]";
port = 8080;
};
systemd.services.hydra-db-setup = {
description = "Create the PostgresSQL user and database for Hydra";
serviceConfig.Type = "oneshot";
serviceConfig.RemainAfterExit = true;
before = [ "hydra-init.service" ];
wantedBy = [ "hydra-init.service" ];
script = ''
if [ ! -e ~hydra/.pgpass ]; then
${pkgs.postgresql}/bin/createuser -S -D -R hydra
${pkgs.postgresql}/bin/createdb -O hydra hydra
${pkgs.postgresql}/bin/psql hydra -c "ALTER USER hydra with password
'${config.users.extraUsers.hydra.password}';"
echo >~hydra/.pgpass
'localhost:*:hydra:hydra:${config.users.extraUsers.hydra.password}'
chown hydra ~hydra/.pgpass
chmod 400 ~hydra/.pgpass
fi
'';
# echo "INSERT INTO Users(userName, emailAddress, password) VALUES
('root', '[email protected]', '$(echo -n foobar | sha1sum | cut -c1-40)');"
| psql hydra
# echo "INSERT INTO UserRoles(userName, role) values('root', 'admin');" |
psql hydra
};
services.postgresql = {
enable = true;
};
};
}
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