Enable cgroupv2 integration tests

Those needs to be run on the (Vagrant Fedora 31) host
(since we need real systemd running), and so we have
to have all the tools needed to compile runc and run
the tests.

The good news is Fedora packages a decent and recent release
of bats-core (1.1.0), which we can use (Debian does not).

Currently only cgroups.bats and update.bats are working,
and only with RUNC_USE_SYSTEMD=yes.

Signed-off-by: Kir Kolyshkin <[email protected]>

.travis.yml

@@ -34,6 +34,8 @@ matrix:
         - sudo ssh default sudo podman build -t test /vagrant
         # Mounting /lib/modules into the container is necessary as CRIU wants to load (via iptables) additional modules
         - sudo ssh default sudo podman run --privileged --cgroupns=private -v /lib/modules:/lib/modules:ro test make localunittest
+        - sudo ssh default 'cd /vagrant && sudo make localintegration TESTPATH=/update.bats RUNC_USE_SYSTEMD=yes'
+        - sudo ssh default 'cd /vagrant && sudo make localintegration TESTPATH=/cgroups.bats RUNC_USE_SYSTEMD=yes'
   allow_failures:
     - go: tip
 

Vagrantfile

@@ -13,6 +13,6 @@ Vagrant.configure("2") do |config|
     v.cpus = 2
   end
   config.vm.provision "shell", inline: <<-SHELL
-    dnf install -y podman
+    dnf install -y podman git-core make golang-go libseccomp-devel bats jq
   SHELL
 end

tests/integration/cgroups.bats

@@ -117,6 +117,7 @@ EOF
     runc run -d --console-socket $CONSOLE_SOCKET test_cgroups_permissions
     [ "$status" -eq 0 ]
 
+    sleep 1
     runc exec test_cgroups_permissions echo "cgroups_exec"
     [ "$status" -eq 0 ]
     [[ ${lines[0]} == *"cgroups_exec"* ]]