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Diffstat (limited to 'runsc/container/container_test.go')
-rw-r--r--runsc/container/container_test.go319
1 files changed, 212 insertions, 107 deletions
diff --git a/runsc/container/container_test.go b/runsc/container/container_test.go
index 1a6d50d0d..5e8247bc8 100644
--- a/runsc/container/container_test.go
+++ b/runsc/container/container_test.go
@@ -20,6 +20,7 @@ import (
"fmt"
"io"
"io/ioutil"
+ "math"
"os"
"path"
"path/filepath"
@@ -53,9 +54,8 @@ func waitForProcessList(cont *Container, want []*control.Process) error {
err = fmt.Errorf("error getting process data from container: %v", err)
return &backoff.PermanentError{Err: err}
}
- if r, err := procListsEqual(got, want); !r {
- return fmt.Errorf("container got process list: %s, want: %s: error: %v",
- procListToString(got), procListToString(want), err)
+ if !procListsEqual(got, want) {
+ return fmt.Errorf("container got process list: %s, want: %s", procListToString(got), procListToString(want))
}
return nil
}
@@ -92,36 +92,72 @@ func blockUntilWaitable(pid int) error {
return err
}
-// procListsEqual is used to check whether 2 Process lists are equal for all
-// implemented fields.
-func procListsEqual(got, want []*control.Process) (bool, error) {
- if len(got) != len(want) {
- return false, nil
- }
- for i := range got {
- pd1 := got[i]
- pd2 := want[i]
- // Zero out timing dependant fields.
- pd1.Time = ""
- pd1.STime = ""
- pd1.C = 0
- // Ignore TTY field too, since it's not relevant in the cases
- // where we use this method. Tests that care about the TTY
- // field should check for it themselves.
- pd1.TTY = ""
- pd1Json, err := control.ProcessListToJSON([]*control.Process{pd1})
- if err != nil {
- return false, err
+// procListsEqual is used to check whether 2 Process lists are equal. Fields
+// set to -1 in wants are ignored. Timestamp and threads fields are always
+// ignored.
+func procListsEqual(gots, wants []*control.Process) bool {
+ if len(gots) != len(wants) {
+ return false
+ }
+ for i := range gots {
+ got := gots[i]
+ want := wants[i]
+
+ if want.UID != math.MaxUint32 && want.UID != got.UID {
+ return false
}
- pd2Json, err := control.ProcessListToJSON([]*control.Process{pd2})
- if err != nil {
- return false, err
+ if want.PID != -1 && want.PID != got.PID {
+ return false
}
- if pd1Json != pd2Json {
- return false, nil
+ if want.PPID != -1 && want.PPID != got.PPID {
+ return false
}
+ if len(want.TTY) != 0 && want.TTY != got.TTY {
+ return false
+ }
+ if len(want.Cmd) != 0 && want.Cmd != got.Cmd {
+ return false
+ }
+ }
+ return true
+}
+
+type processBuilder struct {
+ process control.Process
+}
+
+func newProcessBuilder() *processBuilder {
+ return &processBuilder{
+ process: control.Process{
+ UID: math.MaxUint32,
+ PID: -1,
+ PPID: -1,
+ },
}
- return true, nil
+}
+
+func (p *processBuilder) Cmd(cmd string) *processBuilder {
+ p.process.Cmd = cmd
+ return p
+}
+
+func (p *processBuilder) PID(pid kernel.ThreadID) *processBuilder {
+ p.process.PID = pid
+ return p
+}
+
+func (p *processBuilder) PPID(ppid kernel.ThreadID) *processBuilder {
+ p.process.PPID = ppid
+ return p
+}
+
+func (p *processBuilder) UID(uid auth.KUID) *processBuilder {
+ p.process.UID = uid
+ return p
+}
+
+func (p *processBuilder) Process() *control.Process {
+ return &p.process
}
func procListToString(pl []*control.Process) string {
@@ -256,8 +292,6 @@ var (
func configs(t *testing.T, opts ...configOption) map[string]*boot.Config {
// Always load the default config.
cs := make(map[string]*boot.Config)
- cs["default"] = testutil.TestConfig(t)
-
for _, o := range opts {
switch o {
case overlay:
@@ -285,9 +319,16 @@ func configs(t *testing.T, opts ...configOption) map[string]*boot.Config {
func configsWithVFS2(t *testing.T, opts ...configOption) map[string]*boot.Config {
vfs1 := configs(t, opts...)
- vfs2 := configs(t, opts...)
- for key, value := range vfs2 {
+ var optsVFS2 []configOption
+ for _, opt := range opts {
+ // TODO(gvisor.dev/issue/1487): Enable overlay tests.
+ if opt != overlay {
+ optsVFS2 = append(optsVFS2, opt)
+ }
+ }
+
+ for key, value := range configs(t, optsVFS2...) {
value.VFS2 = true
vfs1[key+"VFS2"] = value
}
@@ -318,14 +359,7 @@ func TestLifecycle(t *testing.T) {
// expectedPL lists the expected process state of the container.
expectedPL := []*control.Process{
- {
- UID: 0,
- PID: 1,
- PPID: 0,
- C: 0,
- Cmd: "sleep",
- Threads: []kernel.ThreadID{1},
- },
+ newProcessBuilder().Cmd("sleep").Process(),
}
// Create the container.
args := Args{
@@ -603,10 +637,16 @@ func doAppExitStatus(t *testing.T, vfs2 bool) {
// TestExec verifies that a container can exec a new program.
func TestExec(t *testing.T) {
- for name, conf := range configs(t, overlay) {
+ for name, conf := range configsWithVFS2(t, all...) {
t.Run(name, func(t *testing.T) {
- const uid = 343
- spec := testutil.NewSpecWithArgs("sleep", "100")
+ dir, err := ioutil.TempDir(testutil.TmpDir(), "exec-test")
+ if err != nil {
+ t.Fatalf("error creating temporary directory: %v", err)
+ }
+ // Note that some shells may exec the final command in a sequence as
+ // an optimization. We avoid this here by adding the exit 0.
+ cmd := fmt.Sprintf("ln -s /bin/true %q/symlink && sleep 100 && exit 0", dir)
+ spec := testutil.NewSpecWithArgs("sh", "-c", cmd)
_, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf)
if err != nil {
@@ -629,29 +669,127 @@ func TestExec(t *testing.T) {
t.Fatalf("error starting container: %v", err)
}
- // expectedPL lists the expected process state of the container.
+ // Wait until sleep is running to ensure the symlink was created.
expectedPL := []*control.Process{
+ newProcessBuilder().Cmd("sh").Process(),
+ newProcessBuilder().Cmd("sleep").Process(),
+ }
+ if err := waitForProcessList(cont, expectedPL); err != nil {
+ t.Fatalf("waitForProcessList: %v", err)
+ }
+
+ for _, tc := range []struct {
+ name string
+ args control.ExecArgs
+ }{
+ {
+ name: "complete",
+ args: control.ExecArgs{
+ Filename: "/bin/true",
+ Argv: []string{"/bin/true"},
+ },
+ },
+ {
+ name: "filename",
+ args: control.ExecArgs{
+ Filename: "/bin/true",
+ },
+ },
+ {
+ name: "argv",
+ args: control.ExecArgs{
+ Argv: []string{"/bin/true"},
+ },
+ },
+ {
+ name: "filename resolution",
+ args: control.ExecArgs{
+ Filename: "true",
+ Envv: []string{"PATH=/bin"},
+ },
+ },
{
- UID: 0,
- PID: 1,
- PPID: 0,
- C: 0,
- Cmd: "sleep",
- Threads: []kernel.ThreadID{1},
+ name: "argv resolution",
+ args: control.ExecArgs{
+ Argv: []string{"true"},
+ Envv: []string{"PATH=/bin"},
+ },
},
{
- UID: uid,
- PID: 2,
- PPID: 0,
- C: 0,
- Cmd: "sleep",
- Threads: []kernel.ThreadID{2},
+ name: "argv symlink",
+ args: control.ExecArgs{
+ Argv: []string{filepath.Join(dir, "symlink")},
+ },
},
+ {
+ name: "working dir",
+ args: control.ExecArgs{
+ Argv: []string{"/bin/sh", "-c", `if [[ "${PWD}" != "/tmp" ]]; then exit 1; fi`},
+ WorkingDirectory: "/tmp",
+ },
+ },
+ {
+ name: "user",
+ args: control.ExecArgs{
+ Argv: []string{"/bin/sh", "-c", `if [[ "$(id -u)" != "343" ]]; then exit 1; fi`},
+ KUID: 343,
+ },
+ },
+ {
+ name: "group",
+ args: control.ExecArgs{
+ Argv: []string{"/bin/sh", "-c", `if [[ "$(id -g)" != "343" ]]; then exit 1; fi`},
+ KGID: 343,
+ },
+ },
+ {
+ name: "env",
+ args: control.ExecArgs{
+ Argv: []string{"/bin/sh", "-c", `if [[ "${FOO}" != "123" ]]; then exit 1; fi`},
+ Envv: []string{"FOO=123"},
+ },
+ },
+ } {
+ t.Run(tc.name, func(t *testing.T) {
+ // t.Parallel()
+ if ws, err := cont.executeSync(&tc.args); err != nil {
+ t.Fatalf("executeAsync(%+v): %v", tc.args, err)
+ } else if ws != 0 {
+ t.Fatalf("executeAsync(%+v) failed with exit: %v", tc.args, ws)
+ }
+ })
}
+ })
+ }
+}
- // Verify that "sleep 100" is running.
- if err := waitForProcessList(cont, expectedPL[:1]); err != nil {
- t.Error(err)
+// TestExecProcList verifies that a container can exec a new program and it
+// shows correcly in the process list.
+func TestExecProcList(t *testing.T) {
+ for name, conf := range configsWithVFS2(t, all...) {
+ t.Run(name, func(t *testing.T) {
+ const uid = 343
+ spec := testutil.NewSpecWithArgs("sleep", "100")
+
+ _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf)
+ if err != nil {
+ t.Fatalf("error setting up container: %v", err)
+ }
+ defer cleanup()
+
+ // Create and start the container.
+ args := Args{
+ ID: testutil.RandomContainerID(),
+ Spec: spec,
+ BundleDir: bundleDir,
+ }
+ cont, err := New(conf, args)
+ if err != nil {
+ t.Fatalf("error creating container: %v", err)
+ }
+ defer cont.Destroy()
+ if err := cont.Start(conf); err != nil {
+ t.Fatalf("error starting container: %v", err)
}
execArgs := &control.ExecArgs{
@@ -661,9 +799,8 @@ func TestExec(t *testing.T) {
KUID: uid,
}
- // Verify that "sleep 100" and "sleep 5" are running
- // after exec. First, start running exec (whick
- // blocks).
+ // Verify that "sleep 100" and "sleep 5" are running after exec. First,
+ // start running exec (which blocks).
ch := make(chan error)
go func() {
exitStatus, err := cont.executeSync(execArgs)
@@ -676,6 +813,11 @@ func TestExec(t *testing.T) {
}
}()
+ // expectedPL lists the expected process state of the container.
+ expectedPL := []*control.Process{
+ newProcessBuilder().PID(1).PPID(0).Cmd("sleep").UID(0).Process(),
+ newProcessBuilder().PID(2).PPID(0).Cmd("sleep").UID(uid).Process(),
+ }
if err := waitForProcessList(cont, expectedPL); err != nil {
t.Fatalf("error waiting for processes: %v", err)
}
@@ -695,7 +837,7 @@ func TestExec(t *testing.T) {
// TestKillPid verifies that we can signal individual exec'd processes.
func TestKillPid(t *testing.T) {
- for name, conf := range configs(t, overlay) {
+ for name, conf := range configsWithVFS2(t, overlay) {
t.Run(name, func(t *testing.T) {
app, err := testutil.FindFile("test/cmd/test_app/test_app")
if err != nil {
@@ -1211,7 +1353,7 @@ func TestCapabilities(t *testing.T) {
uid := auth.KUID(os.Getuid() + 1)
gid := auth.KGID(os.Getgid() + 1)
- for name, conf := range configs(t, all...) {
+ for name, conf := range configsWithVFS2(t, all...) {
t.Run(name, func(t *testing.T) {
spec := testutil.NewSpecWithArgs("sleep", "100")
rootDir, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf)
@@ -1237,24 +1379,9 @@ func TestCapabilities(t *testing.T) {
// expectedPL lists the expected process state of the container.
expectedPL := []*control.Process{
- {
- UID: 0,
- PID: 1,
- PPID: 0,
- C: 0,
- Cmd: "sleep",
- Threads: []kernel.ThreadID{1},
- },
- {
- UID: uid,
- PID: 2,
- PPID: 0,
- C: 0,
- Cmd: "exe",
- Threads: []kernel.ThreadID{2},
- },
+ newProcessBuilder().Cmd("sleep").Process(),
}
- if err := waitForProcessList(cont, expectedPL[:1]); err != nil {
+ if err := waitForProcessList(cont, expectedPL); err != nil {
t.Fatalf("Failed to wait for sleep to start, err: %v", err)
}
@@ -1409,7 +1536,7 @@ func TestReadonlyRoot(t *testing.T) {
}
func TestUIDMap(t *testing.T) {
- for name, conf := range configs(t, noOverlay...) {
+ for name, conf := range configsWithVFS2(t, noOverlay...) {
t.Run(name, func(t *testing.T) {
testDir, err := ioutil.TempDir(testutil.TmpDir(), "test-mount")
if err != nil {
@@ -1537,28 +1664,6 @@ func TestReadonlyMount(t *testing.T) {
}
}
-func TestBindMountByOption(t *testing.T) {
- for _, conf := range configs(t, overlay) {
- t.Logf("Running test with conf: %+v", conf)
-
- dir, err := ioutil.TempDir(testutil.TmpDir(), "bind-mount")
- spec := testutil.NewSpecWithArgs("/bin/touch", path.Join(dir, "file"))
- if err != nil {
- t.Fatalf("ioutil.TempDir() failed: %v", err)
- }
- spec.Mounts = append(spec.Mounts, specs.Mount{
- Destination: dir,
- Source: dir,
- Type: "none",
- Options: []string{"rw", "bind"},
- })
-
- if err := run(spec, conf); err != nil {
- t.Fatalf("error running sandbox: %v", err)
- }
- }
-}
-
// TestAbbreviatedIDs checks that runsc supports using abbreviated container
// IDs in place of full IDs.
func TestAbbreviatedIDs(t *testing.T) {
@@ -1908,7 +2013,7 @@ func doDestroyStartingTest(t *testing.T, vfs2 bool) {
}
func TestCreateWorkingDir(t *testing.T) {
- for name, conf := range configs(t, overlay) {
+ for name, conf := range configsWithVFS2(t, overlay) {
t.Run(name, func(t *testing.T) {
tmpDir, err := ioutil.TempDir(testutil.TmpDir(), "cwd-create")
if err != nil {
@@ -2031,7 +2136,7 @@ func TestMountPropagation(t *testing.T) {
}
func TestMountSymlink(t *testing.T) {
- for name, conf := range configs(t, overlay) {
+ for name, conf := range configsWithVFS2(t, overlay) {
t.Run(name, func(t *testing.T) {
dir, err := ioutil.TempDir(testutil.TmpDir(), "mount-symlink")
if err != nil {
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-01 05:04:53 +0000