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Diffstat (limited to 'test/e2e/exec_test.go')
-rw-r--r-- | test/e2e/exec_test.go | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/test/e2e/exec_test.go b/test/e2e/exec_test.go deleted file mode 100644 index b47df447c..000000000 --- a/test/e2e/exec_test.go +++ /dev/null @@ -1,268 +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 integration provides end-to-end integration tests for runsc. These -// tests require docker and runsc to be installed on the machine. -// -// 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. - -package integration - -import ( - "context" - "fmt" - "strconv" - "strings" - "testing" - "time" - - "gvisor.dev/gvisor/pkg/abi/linux" - "gvisor.dev/gvisor/pkg/bits" - "gvisor.dev/gvisor/pkg/test/dockerutil" - "gvisor.dev/gvisor/runsc/specutils" -) - -// Test that exec uses the exact same capability set as the container. -func TestExecCapabilities(t *testing.T) { - ctx := context.Background() - d := dockerutil.MakeContainer(ctx, t) - defer d.CleanUp(ctx) - - // Start the container. - if err := d.Spawn(ctx, dockerutil.RunOpts{ - Image: "basic/alpine", - }, "sh", "-c", "cat /proc/self/status; sleep 100"); err != nil { - t.Fatalf("docker run failed: %v", err) - } - - // Check that capability. - matches, err := d.WaitForOutputSubmatch(ctx, "CapEff:\t([0-9a-f]+)\n", 5*time.Second) - if err != nil { - t.Fatalf("WaitForOutputSubmatch() timeout: %v", err) - } - if len(matches) != 2 { - t.Fatalf("There should be a match for the whole line and the capability bitmask") - } - want := fmt.Sprintf("CapEff:\t%s\n", matches[1]) - t.Log("Root capabilities:", want) - - // Now check that exec'd process capabilities match the root. - got, err := d.Exec(ctx, dockerutil.ExecOpts{}, "grep", "CapEff:", "/proc/self/status") - if err != nil { - t.Fatalf("docker exec failed: %v", err) - } - t.Logf("CapEff: %v", got) - if got != want { - t.Errorf("wrong capabilities, got: %q, want: %q", got, want) - } -} - -// Test that 'exec --privileged' adds all capabilities, except for CAP_NET_RAW -// which is removed from the container when --net-raw=false. -func TestExecPrivileged(t *testing.T) { - ctx := context.Background() - d := dockerutil.MakeContainer(ctx, t) - defer d.CleanUp(ctx) - - // Start the container with all capabilities dropped. - if err := d.Spawn(ctx, dockerutil.RunOpts{ - Image: "basic/alpine", - CapDrop: []string{"all"}, - }, "sh", "-c", "cat /proc/self/status; sleep 100"); err != nil { - t.Fatalf("docker run failed: %v", err) - } - - // Check that all capabilities where dropped from container. - matches, err := d.WaitForOutputSubmatch(ctx, "CapEff:\t([0-9a-f]+)\n", 5*time.Second) - if err != nil { - t.Fatalf("WaitForOutputSubmatch() timeout: %v", err) - } - if len(matches) != 2 { - t.Fatalf("There should be a match for the whole line and the capability bitmask") - } - containerCaps, err := strconv.ParseUint(matches[1], 16, 64) - if err != nil { - t.Fatalf("failed to convert capabilities %q: %v", matches[1], err) - } - t.Logf("Container capabilities: %#x", containerCaps) - if containerCaps != 0 { - t.Fatalf("Container should have no capabilities: %x", containerCaps) - } - - // Check that 'exec --privileged' adds all capabilities, except for - // CAP_NET_RAW. - got, err := d.Exec(ctx, dockerutil.ExecOpts{ - Privileged: true, - }, "grep", "CapEff:", "/proc/self/status") - if err != nil { - t.Fatalf("docker exec failed: %v", err) - } - t.Logf("Exec CapEff: %v", got) - want := fmt.Sprintf("CapEff:\t%016x\n", specutils.AllCapabilitiesUint64()&^bits.MaskOf64(int(linux.CAP_NET_RAW))) - if got != want { - t.Errorf("Wrong capabilities, got: %q, want: %q. Make sure runsc is not using '--net-raw'", got, want) - } -} - -func TestExecJobControl(t *testing.T) { - ctx := context.Background() - d := dockerutil.MakeContainer(ctx, t) - defer d.CleanUp(ctx) - - // Start the container. - if err := d.Spawn(ctx, dockerutil.RunOpts{ - Image: "basic/alpine", - }, "sleep", "1000"); err != nil { - t.Fatalf("docker run failed: %v", err) - } - - p, err := d.ExecProcess(ctx, dockerutil.ExecOpts{UseTTY: true}, "/bin/sh") - if err != nil { - t.Fatalf("docker exec failed: %v", err) - } - - if _, err = p.Write(time.Second, []byte("sleep 100 | cat\n")); err != nil { - t.Fatalf("error exit: %v", err) - } - time.Sleep(time.Second) - - if _, err = p.Write(time.Second, []byte{0x03}); err != nil { - t.Fatalf("error exit: %v", err) - } - - if _, err = p.Write(time.Second, []byte("exit $(expr $? + 10)\n")); err != nil { - t.Fatalf("error exit: %v", err) - } - - want := 140 - got, err := p.WaitExitStatus(ctx) - if err != nil { - t.Fatalf("wait for exit failed with: %v", err) - } else if got != want { - t.Fatalf("wait for exit returned: %d want: %d", got, want) - } -} - -// Test that failure to exec returns proper error message. -func TestExecError(t *testing.T) { - ctx := context.Background() - d := dockerutil.MakeContainer(ctx, t) - defer d.CleanUp(ctx) - - // Start the container. - if err := d.Spawn(ctx, dockerutil.RunOpts{ - Image: "basic/alpine", - }, "sleep", "1000"); err != nil { - t.Fatalf("docker run failed: %v", err) - } - - // Attempt to exec a binary that doesn't exist. - out, err := d.Exec(ctx, dockerutil.ExecOpts{}, "no_can_find") - if err == nil { - t.Fatalf("docker exec didn't fail") - } - if want := `error finding executable "no_can_find" in PATH`; !strings.Contains(out, want) { - t.Fatalf("docker exec wrong error, got: %s, want: .*%s.*", out, want) - } -} - -// Test that exec inherits environment from run. -func TestExecEnv(t *testing.T) { - ctx := context.Background() - d := dockerutil.MakeContainer(ctx, t) - defer d.CleanUp(ctx) - - // Start the container with env FOO=BAR. - if err := d.Spawn(ctx, dockerutil.RunOpts{ - Image: "basic/alpine", - Env: []string{"FOO=BAR"}, - }, "sleep", "1000"); err != nil { - t.Fatalf("docker run failed: %v", err) - } - - // Exec "echo $FOO". - got, err := d.Exec(ctx, dockerutil.ExecOpts{}, "/bin/sh", "-c", "echo $FOO") - if err != nil { - t.Fatalf("docker exec failed: %v", err) - } - if got, want := strings.TrimSpace(got), "BAR"; got != want { - t.Errorf("bad output from 'docker exec'. Got %q; Want %q.", got, want) - } -} - -// TestRunEnvHasHome tests that run always has HOME environment set. -func TestRunEnvHasHome(t *testing.T) { - // Base alpine image does not have any environment variables set. - ctx := context.Background() - d := dockerutil.MakeContainer(ctx, t) - defer d.CleanUp(ctx) - - // Exec "echo $HOME". The 'bin' user's home dir is '/bin'. - got, err := d.Run(ctx, dockerutil.RunOpts{ - Image: "basic/alpine", - User: "bin", - }, "/bin/sh", "-c", "echo $HOME") - if err != nil { - t.Fatalf("docker run failed: %v", err) - } - - // Check that the directory matches. - if got, want := strings.TrimSpace(got), "/bin"; got != want { - t.Errorf("bad output from 'docker run'. Got %q; Want %q.", got, want) - } -} - -// Test that exec always has HOME environment set, even when not set in run. -func TestExecEnvHasHome(t *testing.T) { - // Base alpine image does not have any environment variables set. - ctx := context.Background() - d := dockerutil.MakeContainer(ctx, t) - defer d.CleanUp(ctx) - - if err := d.Spawn(ctx, dockerutil.RunOpts{ - Image: "basic/alpine", - }, "sleep", "1000"); err != nil { - t.Fatalf("docker run failed: %v", err) - } - - // Exec "echo $HOME", and expect to see "/root". - got, err := d.Exec(ctx, dockerutil.ExecOpts{}, "/bin/sh", "-c", "echo $HOME") - if err != nil { - t.Fatalf("docker exec failed: %v", err) - } - if want := "/root"; !strings.Contains(got, want) { - t.Errorf("wanted exec output to contain %q, got %q", want, got) - } - - // Create a new user with a home directory. - newUID := 1234 - newHome := "/foo/bar" - cmd := fmt.Sprintf("mkdir -p -m 777 %q && adduser foo -D -u %d -h %q", newHome, newUID, newHome) - if _, err := d.Exec(ctx, dockerutil.ExecOpts{}, "/bin/sh", "-c", cmd); err != nil { - t.Fatalf("docker exec failed: %v", err) - } - - // Execute the same as the new user and expect newHome. - got, err = d.Exec(ctx, dockerutil.ExecOpts{ - User: strconv.Itoa(newUID), - }, "/bin/sh", "-c", "echo $HOME") - if err != nil { - t.Fatalf("docker exec failed: %v", err) - } - if want := newHome; !strings.Contains(got, want) { - t.Errorf("wanted exec output to contain %q, got %q", want, got) - } -} |