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Prefer 'remote builder' over 'slave'

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Graham Christensen 2018-09-07 22:10:56 -04:00 committed by Eelco Dolstra
parent 5b2fdfdca2
commit 0aca1ffb6e
2 changed files with 19 additions and 19 deletions
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2
doc/manual/command-ref/nix-store.xml
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@ -275,7 +275,7 @@ as a means of providing Nix store access to a restricted ssh user.
<listitem><para>Allow the connected client to request the realization
of derivations. In effect, this can be used to make the host act
as a build slave.</para></listitem>
as a remote builder.</para></listitem>
</varlistentry>

36
tests/remote-builds.nix
View file

@ -8,8 +8,8 @@ makeTest (
let
# The configuration of the build slaves.
slave =
# The configuration of the remote builders.
builder =
{ config, pkgs, ... }:
{ services.openssh.enable = true;
virtualisation.writableStore = true;
@ -36,21 +36,21 @@ in
{
nodes =
{ slave1 = slave;
slave2 = slave;
{ builder1 = builder;
builder2 = builder;
client =
{ config, pkgs, ... }:
{ nix.maxJobs = 0; # force remote building
nix.distributedBuilds = true;
nix.buildMachines =
[ { hostName = "slave1";
[ { hostName = "builder1";
sshUser = "root";
sshKey = "/root/.ssh/id_ed25519";
system = "i686-linux";
maxJobs = 1;
}
{ hostName = "slave2";
{ hostName = "builder2";
sshUser = "root";
sshKey = "/root/.ssh/id_ed25519";
system = "i686-linux";
@ -75,33 +75,33 @@ in
$client->copyFileFromHost("key", "/root/.ssh/id_ed25519");
$client->succeed("chmod 600 /root/.ssh/id_ed25519");
# Install the SSH key on the slaves.
# Install the SSH key on the builders.
$client->waitForUnit("network.target");
foreach my $slave ($slave1, $slave2) {
$slave->succeed("mkdir -p -m 700 /root/.ssh");
$slave->copyFileFromHost("key.pub", "/root/.ssh/authorized_keys");
$slave->waitForUnit("sshd");
$client->succeed("ssh -o StrictHostKeyChecking=no " . $slave->name() . " 'echo hello world'");
foreach my $builder ($builder1, $builder2) {
$builder->succeed("mkdir -p -m 700 /root/.ssh");
$builder->copyFileFromHost("key.pub", "/root/.ssh/authorized_keys");
$builder->waitForUnit("sshd");
$client->succeed("ssh -o StrictHostKeyChecking=no " . $builder->name() . " 'echo hello world'");
}
# Perform a build and check that it was performed on the slave.
# Perform a build and check that it was performed on the builder.
my $out = $client->succeed(
"nix-build ${expr nodes.client.config 1} 2> build-output",
"grep -q Hello build-output"
);
$slave1->succeed("test -e $out");
$builder1->succeed("test -e $out");
# And a parallel build.
my ($out1, $out2) = split /\s/,
$client->succeed('nix-store -r $(nix-instantiate ${expr nodes.client.config 2})\!out $(nix-instantiate ${expr nodes.client.config 3})\!out');
$slave1->succeed("test -e $out1 -o -e $out2");
$slave2->succeed("test -e $out1 -o -e $out2");
$builder1->succeed("test -e $out1 -o -e $out2");
$builder2->succeed("test -e $out1 -o -e $out2");
# And a failing build.
$client->fail("nix-build ${expr nodes.client.config 5}");
# Test whether the build hook automatically skips unavailable slaves.
$slave1->block;
# Test whether the build hook automatically skips unavailable builders.
$builder1->block;
$client->succeed("nix-build ${expr nodes.client.config 4}");
'';