Function testCgroupResourcesUnified

libcontainer/integration/exec_test.go:615–705

(t *testing.T, systemd bool)

}

func testCgroupResourcesUnified(t *testing.T, systemd bool) {
	if testing.Short() {
		return
	}
	if !cgroups.IsCgroup2UnifiedMode() {
		t.Skip("requires cgroup v2")
	}

	config := newTemplateConfig(t, &tParam{systemd: systemd})
	config.Cgroups.Resources.Memory = 536870912     // 512M
	config.Cgroups.Resources.MemorySwap = 536870912 // 512M, i.e. no swap
	config.Namespaces.Add(configs.NEWCGROUP, "")

	testCases := []struct {
		name     string
		cfg      map[string]string
		expError string
		cmd      []string
		exp      string
	}{
		{
			name: "dummy",
			cmd:  []string{"true"},
			exp:  "",
		},
		{
			name: "set memory.min",
			cfg:  map[string]string{"memory.min": "131072"},
			cmd:  []string{"cat", "/sys/fs/cgroup/memory.min"},
			exp:  "131072\n",
		},
		{
			name: "check memory.max",
			cmd:  []string{"cat", "/sys/fs/cgroup/memory.max"},
			exp:  strconv.Itoa(int(config.Cgroups.Resources.Memory)) + "\n",
		},

		{
			name: "overwrite memory.max",
			cfg:  map[string]string{"memory.max": "268435456"},
			cmd:  []string{"cat", "/sys/fs/cgroup/memory.max"},
			exp:  "268435456\n",
		},
		{
			name:     "no such controller error",
			cfg:      map[string]string{"privet.vsem": "vam"},
			expError: "controller \"privet\" not available",
		},
		{
			name:     "slash in key error",
			cfg:      map[string]string{"bad/key": "val"},
			expError: "must be a file name (no slashes)",
		},
		{
			name:     "no dot in key error",
			cfg:      map[string]string{"badkey": "val"},
			expError: "must be in the form CONTROLLER.PARAMETER",
		},