// 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 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 ] // // The tests expect the runtime name to be provided in the RUNSC_RUNTIME // environment variable (default: runsc-test). // // 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 ( "syscall" "testing" "time" "gvisor.googlesource.com/gvisor/runsc/test/testutil" ) func TestExecCapabilities(t *testing.T) { if err := testutil.Pull("alpine"); err != nil { t.Fatalf("docker pull failed: %v", err) } d := testutil.MakeDocker("exec-test") // Start the container. if err := d.Run("alpine", "sh", "-c", "cat /proc/self/status; sleep 100"); err != nil { t.Fatalf("docker run failed: %v", err) } defer d.CleanUp() want, err := d.WaitForOutput("CapEff:\t[0-9a-f]+\n", 5*time.Second) if err != nil { t.Fatalf("WaitForOutput() timeout: %v", err) } t.Log("Root capabilities:", want) // Now check that exec'd process capabilities match the root. got, err := d.Exec("grep", "CapEff:", "/proc/self/status") if err != nil { t.Fatalf("docker exec failed: %v", err) } if got != want { t.Errorf("wrong capabilities, got: %q, want: %q", got, want) } } func TestExecJobControl(t *testing.T) { if err := testutil.Pull("alpine"); err != nil { t.Fatalf("docker pull failed: %v", err) } d := testutil.MakeDocker("exec-test") // Start the container. if err := d.Run("alpine", "sleep", "1000"); err != nil { t.Fatalf("docker run failed: %v", err) } defer d.CleanUp() // Exec 'sh' with an attached pty. cmd, ptmx, err := d.ExecWithTerminal("sh") if err != nil { t.Fatalf("docker exec failed: %v", err) } defer ptmx.Close() // Call "sleep 100" in the shell. if _, err := ptmx.Write([]byte("sleep 100\n")); err != nil { t.Fatalf("error writing to pty: %v", err) } // Give shell a few seconds to start executing the sleep. time.Sleep(2 * time.Second) // Send a ^C to the pty, which should kill sleep, but not the shell. // \x03 is ASCII "end of text", which is the same as ^C. if _, err := ptmx.Write([]byte{'\x03'}); err != nil { t.Fatalf("error writing to pty: %v", err) } // The shell should still be alive at this point. Sleep should have // exited with code 2+128=130. We'll exit with 10 plus that number, so // that we can be sure that the shell did not get signalled. if _, err := ptmx.Write([]byte("exit $(expr $? + 10)\n")); err != nil { t.Fatalf("error writing to pty: %v", err) } // Exec process should exit with code 10+130=140. ps, err := cmd.Process.Wait() if err != nil { t.Fatalf("error waiting for exec process: %v", err) } ws := ps.Sys().(syscall.WaitStatus) if !ws.Exited() { t.Errorf("ws.Exited got false, want true") } if got, want := ws.ExitStatus(), 140; got != want { t.Errorf("ws.ExitedStatus got %d, want %d", got, want) } }