},
},
))
})
It("returns the correct PID", func() {
pid, err := execer.Exec("something", "smthg")
Expect(pid).To(Equal(12))
Expect(err).ToNot(HaveOccurred())
})
It("sets the correct flags", func() {
_, err := execer.Exec("something", "smthg")
Expect(err).ToNot(HaveOccurred())
cmd := commandRunner.StartedCommands()[0]
Expect(cmd.SysProcAttr).ToNot(BeNil())
flags := syscall.CLONE_NEWIPC
flags = flags | syscall.CLONE_NEWNET
flags = flags | syscall.CLONE_NEWNS
flags = flags | syscall.CLONE_NEWUTS
flags = flags | syscall.CLONE_NEWPID
Expect(int(cmd.SysProcAttr.Cloneflags) & flags).ToNot(Equal(0))
})
Context("when the container is not privileged", func() {
It("creates a user namespace", func() {
_, err := execer.Exec("something", "smthg")
Expect(err).ToNot(HaveOccurred())
cmd := commandRunner.StartedCommands()[0]
oomNotifier.Unwatch()
Expect(runner.KilledCommands()).To(HaveLen(0))
})
})
Context("when oom has not already occurred", func() {
BeforeEach(func() {
runner.WhenWaitingFor(
fake_command_runner.CommandSpec{},
func(cmd *exec.Cmd) error {
return errors.New("Command got killed")
})
})
It("kills the oom process", func() {
Expect(oomNotifier.Watch(oNoom)).To(Succeed())
oomNotifier.Unwatch()
startedCommands := runner.StartedCommands()
killedCommands := runner.KilledCommands()
Expect(startedCommands).To(HaveLen(1))
Expect(startedCommands).To(Equal(killedCommands))
})
})
})
})
step := &containerizer.ShellRunnerStep{Runner: runner, Path: path}
err := step.Run()
Expect(err).To(HaveOccurred())
})
It("returns error if shell command does not exit 0", func() {
runner.WhenWaitingFor(fake_command_runner.CommandSpec{}, func(*exec.Cmd) error {
return errors.New("booo")
})
step := &containerizer.ShellRunnerStep{Runner: runner, Path: path}
err := step.Run()
Expect(err).To(HaveOccurred())
})
})
Context("when a given path does not exist", func() {
It("does not execute a shell command", func() {
step := &containerizer.ShellRunnerStep{Runner: runner, Path: "/whatever.sh"}
step.Run()
Expect(runner.StartedCommands()).To(HaveLen(0))
})
It("does not return an error", func() {
step := &containerizer.ShellRunnerStep{Runner: runner, Path: "/whatever.sh"}
Expect(step.Run()).To(Succeed())
})
})
})
