package integration import ( "os" "strconv" . "github.com/containers/podman/v3/test/utils" . "github.com/onsi/ginkgo" . "github.com/onsi/gomega" ) var _ = Describe("Podman run memory", func() { var ( tempdir string err error podmanTest *PodmanTestIntegration ) BeforeEach(func() { SkipIfRootlessCgroupsV1("Setting Memory not supported on cgroupv1 for rootless users") tempdir, err = CreateTempDirInTempDir() if err != nil { os.Exit(1) } podmanTest = PodmanTestCreate(tempdir) podmanTest.Setup() podmanTest.SeedImages() }) AfterEach(func() { podmanTest.Cleanup() f := CurrentGinkgoTestDescription() processTestResult(f) }) It("podman run memory test", func() { var session *PodmanSessionIntegration if CGROUPSV2 { session = podmanTest.Podman([]string{"run", "--memory=40m", "--net=none", ALPINE, "sh", "-c", "cat /sys/fs/cgroup/$(sed -e 's|0::||' < /proc/self/cgroup)/memory.max"}) } else { session = podmanTest.Podman([]string{"run", "--memory=40m", ALPINE, "cat", "/sys/fs/cgroup/memory/memory.limit_in_bytes"}) } session.WaitWithDefaultTimeout() Expect(session.ExitCode()).To(Equal(0)) Expect(session.OutputToString()).To(Equal("41943040")) }) It("podman run memory-reservation test", func() { if podmanTest.Host.Distribution == "ubuntu" { Skip("Unable to perform test on Ubuntu distributions due to memory management") } var session *PodmanSessionIntegration if CGROUPSV2 { session = podmanTest.Podman([]string{"run", "--memory-reservation=40m", "--net=none", ALPINE, "sh", "-c", "cat /sys/fs/cgroup/$(sed -e 's|0::||' < /proc/self/cgroup)/memory.low"}) } else { session = podmanTest.Podman([]string{"run", "--memory-reservation=40m", ALPINE, "cat", "/sys/fs/cgroup/memory/memory.soft_limit_in_bytes"}) } session.WaitWithDefaultTimeout() Expect(session.ExitCode()).To(Equal(0)) Expect(session.OutputToString()).To(Equal("41943040")) }) It("podman run memory-swappiness test", func() { SkipIfCgroupV2("memory-swappiness not supported on cgroupV2") session := podmanTest.Podman([]string{"run", "--memory-swappiness=15", ALPINE, "cat", "/sys/fs/cgroup/memory/memory.swappiness"}) session.WaitWithDefaultTimeout() Expect(session.ExitCode()).To(Equal(0)) Expect(session.OutputToString()).To(Equal("15")) }) It("podman run kernel-memory test", func() { if podmanTest.Host.Distribution == "ubuntu" { Skip("Unable to perform test on Ubuntu distributions due to memory management") } var session *PodmanSessionIntegration if CGROUPSV2 { session = podmanTest.Podman([]string{"run", "--net=none", "--memory-reservation=40m", ALPINE, "sh", "-c", "cat /sys/fs/cgroup/$(sed -e 's|0::||' < /proc/self/cgroup)/memory.low"}) } else { session = podmanTest.Podman([]string{"run", "--memory-reservation=40m", ALPINE, "cat", "/sys/fs/cgroup/memory/memory.soft_limit_in_bytes"}) } session.WaitWithDefaultTimeout() Expect(session.ExitCode()).To(Equal(0)) Expect(session.OutputToString()).To(Equal("41943040")) }) It("podman run kernel-memory test", func() { if podmanTest.Host.Distribution == "ubuntu" { Skip("Unable to perform test on Ubuntu distributions due to memory management") } var session *PodmanSessionIntegration if CGROUPSV2 { session = podmanTest.Podman([]string{"run", "--memory", "256m", "--memory-swap", "-1", ALPINE, "cat", "/sys/fs/cgroup/memory.swap.max"}) } else { session = podmanTest.Podman([]string{"run", "--cgroupns=private", ALPINE, "cat", "/sys/fs/cgroup/memory/memory.memsw.limit_in_bytes"}) } session.WaitWithDefaultTimeout() Expect(session.ExitCode()).To(BeZero()) output := session.OutputToString() Expect(err).To(BeNil()) if CGROUPSV2 { Expect(output).To(Equal("max")) } else { crazyHighNumber, err := strconv.ParseInt(output, 10, 64) Expect(err).To(BeZero()) Expect(crazyHighNumber).To(BeNumerically(">", 936854771712)) } }) })