Merge branch 'master' into pr_syscall_linux

1 files changed, 0 insertions, 237 deletions

diff --git a/runsc/test/root/cgroup_test.go b/runsc/test/root/cgroup_test.go
deleted file mode 100644
index 5392dc6e0..000000000
--- a/runsc/test/root/cgroup_test.go
+++ /dev/null
@@ -1,237 +0,0 @@
-// Copyright 2018 The gVisor Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package root
-
-import (
-	"bufio"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"strconv"
-	"strings"
-	"testing"
-
-	"gvisor.dev/gvisor/runsc/cgroup"
-	"gvisor.dev/gvisor/runsc/test/testutil"
-)
-
-func verifyPid(pid int, path string) error {
-	f, err := os.Open(path)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	var gots []int
-	scanner := bufio.NewScanner(f)
-	for scanner.Scan() {
-		got, err := strconv.Atoi(scanner.Text())
-		if err != nil {
-			return err
-		}
-		if got == pid {
-			return nil
-		}
-		gots = append(gots, got)
-	}
-	if scanner.Err() != nil {
-		return scanner.Err()
-	}
-	return fmt.Errorf("got: %s, want: %d", gots, pid)
-}
-
-// TestCgroup sets cgroup options and checks that cgroup was properly configured.
-func TestCgroup(t *testing.T) {
-	if err := testutil.Pull("alpine"); err != nil {
-		t.Fatal("docker pull failed:", err)
-	}
-	d := testutil.MakeDocker("cgroup-test")
-
-	attrs := []struct {
-		arg            string
-		ctrl           string
-		file           string
-		want           string
-		skipIfNotFound bool
-	}{
-		{
-			arg:  "--cpu-shares=1000",
-			ctrl: "cpu",
-			file: "cpu.shares",
-			want: "1000",
-		},
-		{
-			arg:  "--cpu-period=2000",
-			ctrl: "cpu",
-			file: "cpu.cfs_period_us",
-			want: "2000",
-		},
-		{
-			arg:  "--cpu-quota=3000",
-			ctrl: "cpu",
-			file: "cpu.cfs_quota_us",
-			want: "3000",
-		},
-		{
-			arg:  "--cpuset-cpus=0",
-			ctrl: "cpuset",
-			file: "cpuset.cpus",
-			want: "0",
-		},
-		{
-			arg:  "--cpuset-mems=0",
-			ctrl: "cpuset",
-			file: "cpuset.mems",
-			want: "0",
-		},
-		{
-			arg:  "--kernel-memory=100MB",
-			ctrl: "memory",
-			file: "memory.kmem.limit_in_bytes",
-			want: "104857600",
-		},
-		{
-			arg:  "--memory=1GB",
-			ctrl: "memory",
-			file: "memory.limit_in_bytes",
-			want: "1073741824",
-		},
-		{
-			arg:  "--memory-reservation=500MB",
-			ctrl: "memory",
-			file: "memory.soft_limit_in_bytes",
-			want: "524288000",
-		},
-		{
-			arg:            "--memory-swap=2GB",
-			ctrl:           "memory",
-			file:           "memory.memsw.limit_in_bytes",
-			want:           "2147483648",
-			skipIfNotFound: true, // swap may be disabled on the machine.
-		},
-		{
-			arg:  "--memory-swappiness=5",
-			ctrl: "memory",
-			file: "memory.swappiness",
-			want: "5",
-		},
-		{
-			arg:  "--blkio-weight=750",
-			ctrl: "blkio",
-			file: "blkio.weight",
-			want: "750",
-		},
-	}
-
-	args := make([]string, 0, len(attrs))
-	for _, attr := range attrs {
-		args = append(args, attr.arg)
-	}
-
-	args = append(args, "alpine", "sleep", "10000")
-	if err := d.Run(args...); err != nil {
-		t.Fatal("docker create failed:", err)
-	}
-	defer d.CleanUp()
-
-	gid, err := d.ID()
-	if err != nil {
-		t.Fatalf("Docker.ID() failed: %v", err)
-	}
-	t.Logf("cgroup ID: %s", gid)
-
-	// Check list of attributes defined above.
-	for _, attr := range attrs {
-		path := filepath.Join("/sys/fs/cgroup", attr.ctrl, "docker", gid, attr.file)
-		out, err := ioutil.ReadFile(path)
-		if err != nil {
-			if os.IsNotExist(err) && attr.skipIfNotFound {
-				t.Logf("skipped %s/%s", attr.ctrl, attr.file)
-				continue
-			}
-			t.Fatalf("failed to read %q: %v", path, err)
-		}
-		if got := strings.TrimSpace(string(out)); got != attr.want {
-			t.Errorf("arg: %q, cgroup attribute %s/%s, got: %q, want: %q", attr.arg, attr.ctrl, attr.file, got, attr.want)
-		}
-	}
-
-	// Check that sandbox is inside cgroup.
-	controllers := []string{
-		"blkio",
-		"cpu",
-		"cpuset",
-		"memory",
-		"net_cls",
-		"net_prio",
-		"devices",
-		"freezer",
-		"perf_event",
-		"pids",
-		"systemd",
-	}
-	pid, err := d.SandboxPid()
-	if err != nil {
-		t.Fatalf("SandboxPid: %v", err)
-	}
-	for _, ctrl := range controllers {
-		path := filepath.Join("/sys/fs/cgroup", ctrl, "docker", gid, "cgroup.procs")
-		if err := verifyPid(pid, path); err != nil {
-			t.Errorf("cgroup control %q processes: %v", ctrl, err)
-		}
-	}
-}
-
-func TestCgroupParent(t *testing.T) {
-	if err := testutil.Pull("alpine"); err != nil {
-		t.Fatal("docker pull failed:", err)
-	}
-	d := testutil.MakeDocker("cgroup-test")
-
-	parent := testutil.RandomName("runsc")
-	if err := d.Run("--cgroup-parent", parent, "alpine", "sleep", "10000"); err != nil {
-		t.Fatal("docker create failed:", err)
-	}
-	defer d.CleanUp()
-	gid, err := d.ID()
-	if err != nil {
-		t.Fatalf("Docker.ID() failed: %v", err)
-	}
-	t.Logf("cgroup ID: %s", gid)
-
-	// Check that sandbox is inside cgroup.
-	pid, err := d.SandboxPid()
-	if err != nil {
-		t.Fatalf("SandboxPid: %v", err)
-	}
-
-	// Finds cgroup for the sandbox's parent process to check that cgroup is
-	// created in the right location relative to the parent.
-	cmd := fmt.Sprintf("grep PPid: /proc/%d/status | sed 's/PPid:\\s//'", pid)
-	ppid, err := exec.Command("bash", "-c", cmd).CombinedOutput()
-	if err != nil {
-		t.Fatalf("Executing %q: %v", cmd, err)
-	}
-	cgroups, err := cgroup.LoadPaths(strings.TrimSpace(string(ppid)))
-	if err != nil {
-		t.Fatalf("cgroup.LoadPath(%s): %v", ppid, err)
-	}
-	path := filepath.Join("/sys/fs/cgroup/memory", cgroups["memory"], parent, gid, "cgroup.procs")
-	if err := verifyPid(pid, path); err != nil {
-		t.Errorf("cgroup control %q processes: %v", "memory", err)
-	}
-}