nixos/containers-imperative: Port test to python
This commit is contained in:
Jacek Galowicz
parent
07802f4d20
commit
9de0a8a7b3
@ -1,6 +1,6 @@
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# Test for NixOS' container support.
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import ./make-test.nix ({ pkgs, ...} : {
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import ./make-test-python.nix ({ pkgs, ...} : {
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name = "containers-imperative";
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meta = with pkgs.stdenv.lib.maintainers; {
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maintainers = [ aristid aszlig eelco kampfschlaefer ];
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@ -45,86 +45,90 @@ import ./make-test.nix ({ pkgs, ...} : {
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wantedBy = [ "multi-user.target" ];
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};
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}
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''; in
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''
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# Make sure we have a NixOS tree (required by ‘nixos-container create’).
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$machine->succeed("PAGER=cat nix-env -qa -A nixos.hello >&2");
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# Create some containers imperatively.
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my $id1 = $machine->succeed("nixos-container create foo --ensure-unique-name");
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chomp $id1;
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$machine->log("created container $id1");
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my $id2 = $machine->succeed("nixos-container create foo --ensure-unique-name");
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chomp $id2;
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$machine->log("created container $id2");
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die if $id1 eq $id2;
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# Put the root of $id2 into a bind mount.
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$machine->succeed(
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"mv /var/lib/containers/$id2 /id2-bindmount",
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"mount --bind /id2-bindmount /var/lib/containers/$id1"
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);
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my $ip1 = $machine->succeed("nixos-container show-ip $id1");
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chomp $ip1;
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my $ip2 = $machine->succeed("nixos-container show-ip $id2");
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chomp $ip2;
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die if $ip1 eq $ip2;
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# Create a directory and a file we can later check if it still exists
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# after destruction of the container.
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$machine->succeed(
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"mkdir /nested-bindmount",
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"echo important data > /nested-bindmount/dummy",
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);
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# Create a directory with a dummy file and bind-mount it into both
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# containers.
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foreach ($id1, $id2) {
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my $importantPath = "/var/lib/containers/$_/very/important/data";
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$machine->succeed(
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"mkdir -p $importantPath",
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"mount --bind /nested-bindmount $importantPath"
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);
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}
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# Start one of them.
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$machine->succeed("nixos-container start $id1");
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# Execute commands via the root shell.
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$machine->succeed("nixos-container run $id1 -- uname") =~ /Linux/ or die;
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# Execute a nix command via the root shell. (regression test for #40355)
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$machine->succeed("nixos-container run $id1 -- nix-instantiate -E 'derivation { name = \"empty\"; builder = \"false\"; system = \"false\"; }'");
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# Stop and start (regression test for #4989)
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$machine->succeed("nixos-container stop $id1");
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$machine->succeed("nixos-container start $id1");
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# Ensure tmpfiles are present
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$machine->log("creating container tmpfiles");
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$machine->succeed("nixos-container create tmpfiles --config-file ${tmpfilesContainerConfig}");
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$machine->log("created, starting…");
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$machine->succeed("nixos-container start tmpfiles");
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$machine->log("done starting, investigating…");
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$machine->succeed("echo \$(nixos-container run tmpfiles -- systemctl is-active foo.service) | grep -q active;");
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$machine->succeed("nixos-container destroy tmpfiles");
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# Execute commands via the root shell.
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$machine->succeed("nixos-container run $id1 -- uname") =~ /Linux/ or die;
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# Destroy the containers.
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$machine->succeed("nixos-container destroy $id1");
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$machine->succeed("nixos-container destroy $id2");
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$machine->succeed(
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# Check whether destruction of any container has killed important data
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"grep -qF 'important data' /nested-bindmount/dummy",
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# Ensure that the container path is gone
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"test ! -e /var/lib/containers/$id1"
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);
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'';
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in ''
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with subtest("Make sure we have a NixOS tree (required by ‘nixos-container create’)"):
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machine.succeed("PAGER=cat nix-env -qa -A nixos.hello >&2")
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id1, id2 = None, None
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with subtest("Create some containers imperatively"):
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id1 = machine.succeed("nixos-container create foo --ensure-unique-name").rstrip()
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machine.log(f"created container {id1}")
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id2 = machine.succeed("nixos-container create foo --ensure-unique-name").rstrip()
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machine.log(f"created container {id2}")
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assert id1 != id2
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with subtest(f"Put the root of {id2} into a bind mount"):
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machine.succeed(
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f"mv /var/lib/containers/{id2} /id2-bindmount",
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f"mount --bind /id2-bindmount /var/lib/containers/{id1}",
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)
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ip1 = machine.succeed(f"nixos-container show-ip {id1}").rstrip()
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ip2 = machine.succeed(f"nixos-container show-ip {id2}").rstrip()
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assert ip1 != ip2
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with subtest(
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"Create a directory and a file we can later check if it still exists "
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+ "after destruction of the container"
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):
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machine.succeed("mkdir /nested-bindmount")
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machine.succeed("echo important data > /nested-bindmount/dummy")
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with subtest(
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"Create a directory with a dummy file and bind-mount it into both containers."
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):
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for id in id1, id2:
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important_path = f"/var/lib/containers/{id}/very/important/data"
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machine.succeed(
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f"mkdir -p {important_path}",
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f"mount --bind /nested-bindmount {important_path}",
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)
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with subtest("Start one of them"):
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machine.succeed(f"nixos-container start {id1}")
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with subtest("Execute commands via the root shell"):
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assert "Linux" in machine.succeed(f"nixos-container run {id1} -- uname")
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with subtest("Execute a nix command via the root shell. (regression test for #40355)"):
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machine.succeed(
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f"nixos-container run {id1} -- nix-instantiate -E "
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+ '\'derivation { name = "empty"; builder = "false"; system = "false"; }\' '
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)
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with subtest("Stop and start (regression test for #4989)"):
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machine.succeed(f"nixos-container stop {id1}")
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machine.succeed(f"nixos-container start {id1}")
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with subtest("tmpfiles are present"):
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machine.log("creating container tmpfiles")
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machine.succeed(
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"nixos-container create tmpfiles --config-file ${tmpfilesContainerConfig}"
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)
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machine.log("created, starting…")
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machine.succeed("nixos-container start tmpfiles")
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machine.log("done starting, investigating…")
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machine.succeed(
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"echo $(nixos-container run tmpfiles -- systemctl is-active foo.service) | grep -q active;"
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)
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machine.succeed("nixos-container destroy tmpfiles")
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with subtest("Execute commands via the root shell"):
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assert "Linux" in machine.succeed(f"nixos-container run {id1} -- uname")
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with subtest("Destroy the containers"):
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for id in id1, id2:
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machine.succeed(f"nixos-container destroy {id}")
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with subtest("Check whether destruction of any container has killed important data"):
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machine.succeed("grep -qF 'important data' /nested-bindmount/dummy")
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with subtest("Ensure that the container path is gone"):
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print(machine.succeed("ls -lsa /var/lib/containers"))
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machine.succeed(f"test ! -e /var/lib/containers/{id1}")
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'';
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})
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