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package integration
import (
"fmt"
"os"
"os/exec"
"strings"
"syscall"
"github.com/onsi/gomega/gexec"
"golang.org/x/sys/unix"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
// PodmanPID execs podman and returns its PID
func (p *PodmanTest) PodmanPID(args []string) (*PodmanSession, int) {
podmanOptions := p.MakeOptions()
podmanOptions = append(podmanOptions, strings.Split(p.StorageOptions, " ")...)
podmanOptions = append(podmanOptions, args...)
fmt.Printf("Running: %s %s\n", p.PodmanBinary, strings.Join(podmanOptions, " "))
command := exec.Command(p.PodmanBinary, podmanOptions...)
session, err := gexec.Start(command, GinkgoWriter, GinkgoWriter)
if err != nil {
Fail(fmt.Sprintf("unable to run podman command: %s", strings.Join(podmanOptions, " ")))
}
return &PodmanSession{session}, command.Process.Pid
}
const sigCatch = "for NUM in `seq 1 64`; do trap \"echo Received $NUM\" $NUM; done; echo READY; while :; do sleep 0.1; done"
var _ = Describe("Podman run with --sig-proxy", func() {
var (
tmpdir string
err error
podmanTest PodmanTest
)
BeforeEach(func() {
tmpdir, err = CreateTempDirInTempDir()
if err != nil {
os.Exit(1)
}
podmanTest = PodmanCreate(tmpdir)
podmanTest.RestoreAllArtifacts()
podmanTest.RestoreArtifact(fedoraMinimal)
})
AfterEach(func() {
podmanTest.Cleanup()
})
Specify("signals are forwarded to container using sig-proxy", func() {
Skip("Race condition issues on CI seem unfixable")
signal := syscall.SIGPOLL
session, pid := podmanTest.PodmanPID([]string{"run", "--name", "test1", fedoraMinimal, "bash", "-c", sigCatch})
ok := WaitForContainer(&podmanTest)
Expect(ok).To(BeTrue())
// Kill with given signal
if err := unix.Kill(pid, signal); err != nil {
Fail(fmt.Sprintf("error killing podman process %d: %v", pid, err))
}
// Kill with -9 to guarantee the container dies
killSession := podmanTest.Podman([]string{"kill", "-s", "9", "test1"})
killSession.WaitWithDefaultTimeout()
Expect(killSession.ExitCode()).To(Equal(0))
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(0))
ok, _ = session.GrepString(fmt.Sprintf("Received %d", signal))
Expect(ok).To(BeTrue())
})
Specify("signals are not forwarded to container with sig-proxy false", func() {
signal := syscall.SIGPOLL
session, pid := podmanTest.PodmanPID([]string{"run", "--name", "test2", "--sig-proxy=false", fedoraMinimal, "bash", "-c", sigCatch})
ok := WaitForContainer(&podmanTest)
Expect(ok).To(BeTrue())
// Kill with given signal
// Should be no output, SIGPOLL is usually ignored
if err := unix.Kill(pid, signal); err != nil {
Fail(fmt.Sprintf("error killing podman process %d: %v", pid, err))
}
// Kill with -9 to guarantee the container dies
killSession := podmanTest.Podman([]string{"kill", "-s", "9", "test2"})
killSession.WaitWithDefaultTimeout()
Expect(killSession.ExitCode()).To(Equal(0))
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(0))
ok, _ = session.GrepString(fmt.Sprintf("Received %d", signal))
Expect(ok).To(BeFalse())
})
})
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