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-rw-r--r--runsc/sandbox/chroot.go2
-rw-r--r--runsc/sandbox/sandbox.go1
-rw-r--r--runsc/test/README.md26
-rw-r--r--runsc/test/image/image_test.go14
-rw-r--r--runsc/test/integration/integration_test.go17
-rw-r--r--runsc/test/root/BUILD27
-rw-r--r--runsc/test/root/chroot_test.go103
-rw-r--r--runsc/test/root/root.go16
-rw-r--r--runsc/test/testutil/docker.go13
-rw-r--r--runsc/test/testutil/testutil.go4
10 files changed, 201 insertions, 22 deletions
diff --git a/runsc/sandbox/chroot.go b/runsc/sandbox/chroot.go
index 30a4bae35..35b19a0b1 100644
--- a/runsc/sandbox/chroot.go
+++ b/runsc/sandbox/chroot.go
@@ -55,7 +55,7 @@ func setUpChroot() (string, error) {
log.Infof("Setting up sandbox chroot in %q", chroot)
// Mount /proc.
- if err := mountInChroot(chroot, "proc", "/proc", "proc", 0); err != nil {
+ if err := mountInChroot(chroot, "proc", "/proc", "proc", syscall.MS_NOSUID|syscall.MS_NODEV|syscall.MS_NOEXEC); err != nil {
return "", fmt.Errorf("error mounting proc in chroot: %v", err)
}
diff --git a/runsc/sandbox/sandbox.go b/runsc/sandbox/sandbox.go
index 1ed1ab61d..847417a15 100644
--- a/runsc/sandbox/sandbox.go
+++ b/runsc/sandbox/sandbox.go
@@ -475,6 +475,7 @@ func (s *Sandbox) createSandboxProcess(spec *specs.Spec, conf *boot.Config, bund
}
s.Chroot = chroot // Remember path so it can cleaned up.
cmd.SysProcAttr.Chroot = chroot
+ cmd.Dir = "/"
cmd.Args[0] = "/runsc"
cmd.Path = "/runsc"
} else {
diff --git a/runsc/test/README.md b/runsc/test/README.md
new file mode 100644
index 000000000..5929cbeb6
--- /dev/null
+++ b/runsc/test/README.md
@@ -0,0 +1,26 @@
+# Tests
+
+The tests defined under this path are verifying functionality beyond what unit
+tests can cover, e.g. integration and end to end tests. Due to their nature,
+they may need extra setup in the test machine and extra configuration to run.
+
+- **integration:** defines integration tests that uses `docker run` to test
+ functionality.
+- **image:** basic end to end test for popular images.
+- **root:** tests that require to be run as root.
+- **testutil:** utilities library to support the tests.
+
+The following setup steps are required in order to run these tests:
+
+
+ `./runsc/test/install.sh [--runtime <name>]`
+
+The tests expect the runtime name to be provided in the `RUNSC_RUNTIME`
+environment variable (default: `runsc-test`). To run the tests execute:
+
+
+```
+bazel test --test_env=RUNSC_RUNTIME=runsc-test \
+ //runsc/test/image:image_test \
+ //runsc/test/integration:integration_test
+```
diff --git a/runsc/test/image/image_test.go b/runsc/test/image/image_test.go
index 71d992115..341bdc1d5 100644
--- a/runsc/test/image/image_test.go
+++ b/runsc/test/image/image_test.go
@@ -12,17 +12,13 @@
// See the License for the specific language governing permissions and
// limitations under the License.
-// Package image provides end-to-end image tests for runsc. These tests require
-// docker and runsc to be installed on the machine. To set it up, run:
-//
-// ./runsc/test/install.sh [--runtime <name>]
-//
-// The tests expect the runtime name to be provided in the RUNSC_RUNTIME
-// environment variable (default: runsc-test).
-//
+// Package image provides end-to-end image tests for runsc.
+
// Each test calls docker commands to start up a container, and tests that it is
// behaving properly, like connecting to a port or looking at the output. The
// container is killed and deleted at the end.
+//
+// Setup instruction in runsc/test/README.md.
package image
import (
@@ -307,7 +303,7 @@ func TestRuby(t *testing.T) {
}
}
-func MainTest(m *testing.M) {
+func TestMain(m *testing.M) {
testutil.EnsureSupportedDockerVersion()
os.Exit(m.Run())
}
diff --git a/runsc/test/integration/integration_test.go b/runsc/test/integration/integration_test.go
index 457b5fbf5..5f24aeed5 100644
--- a/runsc/test/integration/integration_test.go
+++ b/runsc/test/integration/integration_test.go
@@ -12,18 +12,13 @@
// See the License for the specific language governing permissions and
// limitations under the License.
-// Package image provides end-to-end integration tests for runsc. These tests require
-// docker and runsc to be installed on the machine. To set it up, run:
-//
-// ./runsc/test/install.sh [--runtime <name>]
-//
-// The tests expect the runtime name to be provided in the RUNSC_RUNTIME
-// environment variable (default: runsc-test).
+// Package integration provides end-to-end integration tests for runsc.
//
// Each test calls docker commands to start up a container, and tests that it is
-// behaving properly, with various runsc commands. The container is killed and deleted
-// at the end.
-
+// behaving properly, with various runsc commands. The container is killed and
+// deleted at the end.
+//
+// Setup instruction in runsc/test/README.md.
package integration
import (
@@ -184,7 +179,7 @@ func TestConnectToSelf(t *testing.T) {
}
}
-func MainTest(m *testing.M) {
+func TestMain(m *testing.M) {
testutil.EnsureSupportedDockerVersion()
os.Exit(m.Run())
}
diff --git a/runsc/test/root/BUILD b/runsc/test/root/BUILD
new file mode 100644
index 000000000..dbc0f1d26
--- /dev/null
+++ b/runsc/test/root/BUILD
@@ -0,0 +1,27 @@
+package(licenses = ["notice"]) # Apache 2.0
+
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+
+go_library(
+ name = "root",
+ srcs = ["root.go"],
+ importpath = "gvisor.googlesource.com/gvisor/runsc/test/root",
+)
+
+go_test(
+ name = "root_test",
+ size = "small",
+ srcs = ["chroot_test.go"],
+ embed = [":root"],
+ tags = [
+ # Requires docker and runsc to be configured before the test runs.
+ # Also test only runs as root.
+ "manual",
+ "local",
+ ],
+ deps = [
+ "//runsc/specutils",
+ "//runsc/test/testutil",
+ "@com_github_syndtr_gocapability//capability:go_default_library",
+ ],
+)
diff --git a/runsc/test/root/chroot_test.go b/runsc/test/root/chroot_test.go
new file mode 100644
index 000000000..5c59e7451
--- /dev/null
+++ b/runsc/test/root/chroot_test.go
@@ -0,0 +1,103 @@
+// Copyright 2018 Google Inc.
+//
+// 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 is used for tests that requires sysadmin privileges run. First,
+// follow the setup instruction in runsc/test/README.md. To run these test:
+//
+// bazel build //runsc/test/root:root_test
+// root_test=$(find -L ./bazel-bin/ -executable -type f -name root_test | grep __main__)
+// sudo RUNSC_RUNTIME=runsc-test ${root_test}
+package root
+
+import (
+ "fmt"
+ "io/ioutil"
+ "os"
+ "path/filepath"
+ "reflect"
+ "sort"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/syndtr/gocapability/capability"
+ "gvisor.googlesource.com/gvisor/runsc/specutils"
+ "gvisor.googlesource.com/gvisor/runsc/test/testutil"
+)
+
+// TestChroot verifies that the sandbox is chroot'd and that mounts are cleaned
+// up after the sandbox is destroyed.
+func TestChroot(t *testing.T) {
+ d := testutil.MakeDocker("chroot-test")
+ if err := d.Run("alpine", "sleep", "10000"); err != nil {
+ t.Fatalf("docker run failed: %v", err)
+ }
+ defer d.CleanUp()
+
+ pid, err := d.SandboxPid()
+ if err != nil {
+ t.Fatalf("Docker.SandboxPid(): %v", err)
+ }
+
+ // Check that sandbox is chroot'ed.
+ chroot, err := filepath.EvalSymlinks(filepath.Join("/proc", strconv.Itoa(pid), "root"))
+ if err != nil {
+ t.Fatalf("error resolving /proc/<pid>/root symlink: %v", err)
+ }
+ if want := "/tmp/runsc-sandbox-chroot-"; !strings.HasPrefix(chroot, want) {
+ t.Errorf("sandbox is not chroot'd, it should be inside: %q, got: %q", want, chroot)
+ }
+
+ path, err := filepath.EvalSymlinks(filepath.Join("/proc", strconv.Itoa(pid), "cwd"))
+ if err != nil {
+ t.Fatalf("error resolving /proc/<pid>/cwd symlink: %v", err)
+ }
+ if chroot != path {
+ t.Errorf("sandbox current dir is wrong, want: %q, got: %q", chroot, path)
+ }
+
+ fi, err := ioutil.ReadDir(chroot)
+ if err != nil {
+ t.Fatalf("error listing %q: %v", chroot, err)
+ }
+ if want, got := 2, len(fi); want != got {
+ t.Fatalf("chroot dir got %d entries, want %d", want, got)
+ }
+
+ // chroot dir is prepared by runsc and should contains only the executable
+ // and /proc.
+ files := []string{fi[0].Name(), fi[1].Name()}
+ sort.Strings(files)
+ if want := []string{"proc", "runsc"}; !reflect.DeepEqual(files, want) {
+ t.Errorf("chroot got children %v, want %v", files, want)
+ }
+
+ d.CleanUp()
+
+ // Check that chroot directory was cleaned up.
+ if _, err := os.Stat(chroot); err == nil || !os.IsNotExist(err) {
+ t.Errorf("chroot directory %q was not deleted: %v", chroot, err)
+ }
+}
+
+func TestMain(m *testing.M) {
+ testutil.EnsureSupportedDockerVersion()
+
+ if !specutils.HasCapabilities(capability.CAP_SYS_ADMIN, capability.CAP_DAC_OVERRIDE) {
+ fmt.Println("Test requires sysadmin privileges to run. Try again with sudo.")
+ os.Exit(1)
+ }
+
+ os.Exit(m.Run())
+}
diff --git a/runsc/test/root/root.go b/runsc/test/root/root.go
new file mode 100644
index 000000000..790f62c29
--- /dev/null
+++ b/runsc/test/root/root.go
@@ -0,0 +1,16 @@
+// Copyright 2018 Google Inc.
+//
+// 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 is empty. See chroot_test.go for description.
+package root
diff --git a/runsc/test/testutil/docker.go b/runsc/test/testutil/docker.go
index 55ca353b8..cf61f2c10 100644
--- a/runsc/test/testutil/docker.go
+++ b/runsc/test/testutil/docker.go
@@ -267,6 +267,19 @@ func (d *Docker) FindPort(sandboxPort int) (int, error) {
return port, nil
}
+// SandboxPid returns the PID to the sandbox process.
+func (d *Docker) SandboxPid() (int, error) {
+ out, err := do("inspect", "-f={{.State.Pid}}", d.Name)
+ if err != nil {
+ return -1, fmt.Errorf("error retrieving pid: %v", err)
+ }
+ pid, err := strconv.Atoi(strings.TrimSuffix(string(out), "\n"))
+ if err != nil {
+ return -1, fmt.Errorf("error parsing pid %q: %v", out, err)
+ }
+ return pid, nil
+}
+
// WaitForOutput calls 'docker logs' to retrieve containers output and searches
// for the given pattern.
func (d *Docker) WaitForOutput(pattern string, timeout time.Duration) (string, error) {
diff --git a/runsc/test/testutil/testutil.go b/runsc/test/testutil/testutil.go
index cdc7f78c3..b4664995c 100644
--- a/runsc/test/testutil/testutil.go
+++ b/runsc/test/testutil/testutil.go
@@ -238,7 +238,7 @@ func WaitForHTTP(port int, timeout time.Duration) error {
}
// RunAsRoot ensures the test runs with CAP_SYS_ADMIN and CAP_SYS_CHROOT. If
-// need it will create a new user namespace and reexecute the test as root
+// needed it will create a new user namespace and re-execute the test as root
// inside of the namespace. This functionr returns when it's running as root. If
// it needs to create another process, it will exit from there and not return.
func RunAsRoot() {
@@ -246,6 +246,8 @@ func RunAsRoot() {
return
}
+ fmt.Println("*** Re-running test as root in new user namespace ***")
+
// Current process doesn't have CAP_SYS_ADMIN, create user namespace and run
// as root inside that namespace to get it.
runtime.LockOSThread()
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 06:24:54 +0000