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nixos/containers-imperative: Port test to python

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This commit is contained in:
Jacek Galowicz 2019-11-26 09:11:30 +01:00
parent 07802f4d20
commit 9de0a8a7b3
1 changed files with 80 additions and 76 deletions
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156
nixos/tests/containers-imperative.nix
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@ -1,6 +1,6 @@
# Test for NixOS' container support.
import ./make-test.nix ({ pkgs, ...} : {
import ./make-test-python.nix ({ pkgs, ...} : {
name = "containers-imperative";
meta = with pkgs.stdenv.lib.maintainers; {
maintainers = [ aristid aszlig eelco kampfschlaefer ];
@ -36,95 +36,99 @@ import ./make-test.nix ({ pkgs, ...} : {
};
testScript = let
tmpfilesContainerConfig = pkgs.writeText "container-config-tmpfiles" ''
{
systemd.tmpfiles.rules = [ "d /foo - - - - -" ];
systemd.services.foo = {
serviceConfig.Type = "oneshot";
script = "ls -al /foo";
wantedBy = [ "multi-user.target" ];
};
}
''; in
''
# Make sure we have a NixOS tree (required by ‘nixos-container create’).
$machine->succeed("PAGER=cat nix-env -qa -A nixos.hello >&2");
tmpfilesContainerConfig = pkgs.writeText "container-config-tmpfiles" ''
{
systemd.tmpfiles.rules = [ "d /foo - - - - -" ];
systemd.services.foo = {
serviceConfig.Type = "oneshot";
script = "ls -al /foo";
wantedBy = [ "multi-user.target" ];
};
}
'';
in ''
with subtest("Make sure we have a NixOS tree (required by ‘nixos-container create’)"):
machine.succeed("PAGER=cat nix-env -qa -A nixos.hello >&2")
# Create some containers imperatively.
my $id1 = $machine->succeed("nixos-container create foo --ensure-unique-name");
chomp $id1;
$machine->log("created container $id1");
id1, id2 = None, None
my $id2 = $machine->succeed("nixos-container create foo --ensure-unique-name");
chomp $id2;
$machine->log("created container $id2");
with subtest("Create some containers imperatively"):
id1 = machine.succeed("nixos-container create foo --ensure-unique-name").rstrip()
machine.log(f"created container {id1}")
die if $id1 eq $id2;
id2 = machine.succeed("nixos-container create foo --ensure-unique-name").rstrip()
machine.log(f"created container {id2}")
# Put the root of $id2 into a bind mount.
$machine->succeed(
"mv /var/lib/containers/$id2 /id2-bindmount",
"mount --bind /id2-bindmount /var/lib/containers/$id1"
);
assert id1 != id2
my $ip1 = $machine->succeed("nixos-container show-ip $id1");
chomp $ip1;
my $ip2 = $machine->succeed("nixos-container show-ip $id2");
chomp $ip2;
die if $ip1 eq $ip2;
with subtest(f"Put the root of {id2} into a bind mount"):
machine.succeed(
f"mv /var/lib/containers/{id2} /id2-bindmount",
f"mount --bind /id2-bindmount /var/lib/containers/{id1}",
)
# Create a directory and a file we can later check if it still exists
# after destruction of the container.
$machine->succeed(
"mkdir /nested-bindmount",
"echo important data > /nested-bindmount/dummy",
);
ip1 = machine.succeed(f"nixos-container show-ip {id1}").rstrip()
ip2 = machine.succeed(f"nixos-container show-ip {id2}").rstrip()
assert ip1 != ip2
# Create a directory with a dummy file and bind-mount it into both
# containers.
foreach ($id1, $id2) {
my $importantPath = "/var/lib/containers/$_/very/important/data";
$machine->succeed(
"mkdir -p $importantPath",
"mount --bind /nested-bindmount $importantPath"
);
}
with subtest(
"Create a directory and a file we can later check if it still exists "
+ "after destruction of the container"
):
machine.succeed("mkdir /nested-bindmount")
machine.succeed("echo important data > /nested-bindmount/dummy")
# Start one of them.
$machine->succeed("nixos-container start $id1");
with subtest(
"Create a directory with a dummy file and bind-mount it into both containers."
):
for id in id1, id2:
important_path = f"/var/lib/containers/{id}/very/important/data"
machine.succeed(
f"mkdir -p {important_path}",
f"mount --bind /nested-bindmount {important_path}",
)
# Execute commands via the root shell.
$machine->succeed("nixos-container run $id1 -- uname") =~ /Linux/ or die;
with subtest("Start one of them"):
machine.succeed(f"nixos-container start {id1}")
# Execute a nix command via the root shell. (regression test for #40355)
$machine->succeed("nixos-container run $id1 -- nix-instantiate -E 'derivation { name = \"empty\"; builder = \"false\"; system = \"false\"; }'");
with subtest("Execute commands via the root shell"):
assert "Linux" in machine.succeed(f"nixos-container run {id1} -- uname")
# Stop and start (regression test for #4989)
$machine->succeed("nixos-container stop $id1");
$machine->succeed("nixos-container start $id1");
with subtest("Execute a nix command via the root shell. (regression test for #40355)"):
machine.succeed(
f"nixos-container run {id1} -- nix-instantiate -E "
+ '\'derivation { name = "empty"; builder = "false"; system = "false"; }\' '
)
# Ensure tmpfiles are present
$machine->log("creating container tmpfiles");
$machine->succeed("nixos-container create tmpfiles --config-file ${tmpfilesContainerConfig}");
$machine->log("created, starting…");
$machine->succeed("nixos-container start tmpfiles");
$machine->log("done starting, investigating…");
$machine->succeed("echo \$(nixos-container run tmpfiles -- systemctl is-active foo.service) | grep -q active;");
$machine->succeed("nixos-container destroy tmpfiles");
with subtest("Stop and start (regression test for #4989)"):
machine.succeed(f"nixos-container stop {id1}")
machine.succeed(f"nixos-container start {id1}")
# Execute commands via the root shell.
$machine->succeed("nixos-container run $id1 -- uname") =~ /Linux/ or die;
with subtest("tmpfiles are present"):
machine.log("creating container tmpfiles")
machine.succeed(
"nixos-container create tmpfiles --config-file ${tmpfilesContainerConfig}"
)
machine.log("created, starting…")
machine.succeed("nixos-container start tmpfiles")
machine.log("done starting, investigating…")
machine.succeed(
"echo $(nixos-container run tmpfiles -- systemctl is-active foo.service) | grep -q active;"
)
machine.succeed("nixos-container destroy tmpfiles")
# Destroy the containers.
$machine->succeed("nixos-container destroy $id1");
$machine->succeed("nixos-container destroy $id2");
with subtest("Execute commands via the root shell"):
assert "Linux" in machine.succeed(f"nixos-container run {id1} -- uname")
$machine->succeed(
# Check whether destruction of any container has killed important data
"grep -qF 'important data' /nested-bindmount/dummy",
# Ensure that the container path is gone
"test ! -e /var/lib/containers/$id1"
);
with subtest("Destroy the containers"):
for id in id1, id2:
machine.succeed(f"nixos-container destroy {id}")
with subtest("Check whether destruction of any container has killed important data"):
machine.succeed("grep -qF 'important data' /nested-bindmount/dummy")
with subtest("Ensure that the container path is gone"):
print(machine.succeed("ls -lsa /var/lib/containers"))
machine.succeed(f"test ! -e /var/lib/containers/{id1}")
'';
})