119 lines
3.7 KiB
Go
119 lines
3.7 KiB
Go
// Copyright 2018 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package image provides end-to-end integration tests for runsc. These tests require
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// docker and runsc to be installed on the machine. To set it up, run:
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//
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// ./runsc/test/install.sh [--runtime <name>]
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//
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// The tests expect the runtime name to be provided in the RUNSC_RUNTIME
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// environment variable (default: runsc-test).
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//
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// Each test calls docker commands to start up a container, and tests that it is
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// behaving properly, with various runsc commands. The container is killed and deleted
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// at the end.
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package integration
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import (
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"syscall"
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"testing"
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"time"
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"gvisor.googlesource.com/gvisor/runsc/test/testutil"
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)
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func TestExecCapabilities(t *testing.T) {
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if err := testutil.Pull("alpine"); err != nil {
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t.Fatalf("docker pull failed: %v", err)
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}
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d := testutil.MakeDocker("exec-test")
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// Start the container.
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if err := d.Run("alpine", "sh", "-c", "cat /proc/self/status; sleep 100"); err != nil {
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t.Fatalf("docker run failed: %v", err)
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}
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defer d.CleanUp()
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want, err := d.WaitForOutput("CapEff:\t[0-9a-f]+\n", 5*time.Second)
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if err != nil {
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t.Fatalf("WaitForOutput() timeout: %v", err)
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}
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t.Log("Root capabilities:", want)
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// Now check that exec'd process capabilities match the root.
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got, err := d.Exec("grep", "CapEff:", "/proc/self/status")
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if err != nil {
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t.Fatalf("docker exec failed: %v", err)
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}
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if got != want {
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t.Errorf("wrong capabilities, got: %q, want: %q", got, want)
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}
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}
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func TestExecJobControl(t *testing.T) {
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if err := testutil.Pull("alpine"); err != nil {
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t.Fatalf("docker pull failed: %v", err)
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}
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d := testutil.MakeDocker("exec-job-control-test")
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// Start the container.
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if err := d.Run("alpine", "sleep", "1000"); err != nil {
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t.Fatalf("docker run failed: %v", err)
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}
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defer d.CleanUp()
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// Exec 'sh' with an attached pty.
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cmd, ptmx, err := d.ExecWithTerminal("sh")
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if err != nil {
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t.Fatalf("docker exec failed: %v", err)
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}
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defer ptmx.Close()
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// Call "sleep 100 | cat" in the shell. We pipe to cat so that there
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// will be two processes in the foreground process group.
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if _, err := ptmx.Write([]byte("sleep 100 | cat\n")); err != nil {
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t.Fatalf("error writing to pty: %v", err)
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}
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// Give shell a few seconds to start executing the sleep.
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time.Sleep(2 * time.Second)
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// Send a ^C to the pty, which should kill sleep and cat, but not the
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// shell. \x03 is ASCII "end of text", which is the same as ^C.
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if _, err := ptmx.Write([]byte{'\x03'}); err != nil {
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t.Fatalf("error writing to pty: %v", err)
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}
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// The shell should still be alive at this point. Sleep should have
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// exited with code 2+128=130. We'll exit with 10 plus that number, so
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// that we can be sure that the shell did not get signalled.
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if _, err := ptmx.Write([]byte("exit $(expr $? + 10)\n")); err != nil {
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t.Fatalf("error writing to pty: %v", err)
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}
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// Exec process should exit with code 10+130=140.
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ps, err := cmd.Process.Wait()
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if err != nil {
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t.Fatalf("error waiting for exec process: %v", err)
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}
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ws := ps.Sys().(syscall.WaitStatus)
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if !ws.Exited() {
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t.Errorf("ws.Exited got false, want true")
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}
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if got, want := ws.ExitStatus(), 140; got != want {
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t.Errorf("ws.ExitedStatus got %d, want %d", got, want)
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}
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}
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