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package integration
import (
"fmt"
"os"
"strconv"
"time"
. "github.com/containers/podman/v4/test/utils"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
. "github.com/onsi/gomega/gexec"
)
// TODO: we need to check the output. Currently, we only check the exit codes
// which is not enough.
var _ = Describe("Podman stats", func() {
var (
tempdir string
podmanTest *PodmanTestIntegration
)
BeforeEach(func() {
SkipIfRootlessCgroupsV1("stats not supported on cgroupv1 for rootless users")
if isContainerized() {
SkipIfCgroupV1("stats not supported inside cgroupv1 container environment")
}
var err error
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 stats with bogus container", func() {
session := podmanTest.Podman([]string{"stats", "--no-stream", "123"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(125))
})
It("podman stats on a running container", func() {
session := podmanTest.RunTopContainer("")
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
cid := session.OutputToString()
session = podmanTest.Podman([]string{"stats", "--no-stream", cid})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
})
It("podman stats on all containers", func() {
session := podmanTest.RunTopContainer("")
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
session = podmanTest.Podman([]string{"stats", "--no-stream", "-a"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
})
It("podman stats on all running containers", func() {
session := podmanTest.RunTopContainer("")
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
session = podmanTest.Podman([]string{"stats", "--no-stream"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
})
It("podman stats only output cids", func() {
session := podmanTest.RunTopContainer("")
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
session = podmanTest.Podman([]string{"stats", "--all", "--no-stream", "--format", "\"{{.ID}}\""})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
})
It("podman stats with GO template", func() {
session := podmanTest.RunTopContainer("")
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
stats := podmanTest.Podman([]string{"stats", "-a", "--no-reset", "--no-stream", "--format", "table {{.ID}} {{.AVGCPU}} {{.MemUsage}} {{.CPU}} {{.NetIO}} {{.BlockIO}} {{.PIDS}}"})
stats.WaitWithDefaultTimeout()
Expect(stats).To(Exit(0))
})
It("podman stats with invalid GO template", func() {
session := podmanTest.RunTopContainer("")
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
stats := podmanTest.Podman([]string{"stats", "-a", "--no-reset", "--no-stream", "--format", "\"table {{.ID}} {{.NoSuchField}} \""})
stats.WaitWithDefaultTimeout()
Expect(stats).To(ExitWithError())
})
It("podman stats with negative interval", func() {
session := podmanTest.RunTopContainer("")
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
stats := podmanTest.Podman([]string{"stats", "-a", "--no-reset", "--no-stream", "--interval=-1"})
stats.WaitWithDefaultTimeout()
Expect(stats).To(ExitWithError())
})
It("podman stats with zero interval", func() {
session := podmanTest.RunTopContainer("")
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
stats := podmanTest.Podman([]string{"stats", "-a", "--no-reset", "--no-stream", "--interval=0"})
stats.WaitWithDefaultTimeout()
Expect(stats).To(ExitWithError())
})
It("podman stats with interval", func() {
session := podmanTest.RunTopContainer("")
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
stats := podmanTest.Podman([]string{"stats", "-a", "--no-reset", "--no-stream", "--interval=5"})
stats.WaitWithDefaultTimeout()
Expect(stats).Should(Exit(0))
})
It("podman stats with json output", func() {
var found bool
session := podmanTest.RunTopContainer("")
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
for i := 0; i < 5; i++ {
ps := podmanTest.Podman([]string{"ps", "-q"})
ps.WaitWithDefaultTimeout()
if len(ps.OutputToStringArray()) == 1 {
found = true
break
}
time.Sleep(time.Second)
}
Expect(found).To(BeTrue())
stats := podmanTest.Podman([]string{"stats", "--all", "--no-stream", "--format", "json"})
stats.WaitWithDefaultTimeout()
Expect(stats).Should(Exit(0))
Expect(stats.OutputToString()).To(BeValidJSON())
})
It("podman stats on a container with no net ns", func() {
session := podmanTest.Podman([]string{"run", "-d", "--net", "none", ALPINE, "top"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
session = podmanTest.Podman([]string{"stats", "--no-stream", "-a"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
})
It("podman stats on a container that joined another's net ns", func() {
session := podmanTest.RunTopContainer("")
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
cid := session.OutputToString()
session = podmanTest.Podman([]string{"run", "-d", "--net", fmt.Sprintf("container:%s", cid), ALPINE, "top"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
session = podmanTest.Podman([]string{"stats", "--no-stream", "-a"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
})
It("podman stats on container with forced slirp4netns", func() {
// This will force the slirp4netns net mode to be tested as root
session := podmanTest.Podman([]string{"run", "-d", "--net", "slirp4netns", ALPINE, "top"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
session = podmanTest.Podman([]string{"stats", "--no-stream", "-a"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
})
It("podman reads slirp4netns network stats", func() {
session := podmanTest.Podman([]string{"run", "-d", "--network", "slirp4netns", ALPINE, "top"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
cid := session.OutputToString()
stats := podmanTest.Podman([]string{"stats", "--format", "'{{.NetIO}}'", "--no-stream", cid})
stats.WaitWithDefaultTimeout()
Expect(stats).Should(Exit(0))
Expect(stats.OutputToString()).To(Not(ContainSubstring("-- / --")))
})
// Regression test for #8265
It("podman stats with custom memory limits", func() {
// Run three containers. One with a memory limit. Make sure
// that the limits are different and the limited one has a
// lower limit.
ctrNoLimit0 := "no-limit-0"
ctrNoLimit1 := "no-limit-1"
ctrWithLimit := "with-limit"
session := podmanTest.Podman([]string{"run", "-d", "--name", ctrNoLimit0, ALPINE, "top"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
session = podmanTest.Podman([]string{"run", "-d", "--name", ctrNoLimit1, ALPINE, "top"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
session = podmanTest.Podman([]string{"run", "-d", "--name", ctrWithLimit, "--memory", "50m", ALPINE, "top"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
session = podmanTest.Podman([]string{"stats", "--no-stream", "--format", "{{.MemLimit}}", ctrNoLimit0, ctrNoLimit1, ctrWithLimit})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
// We have three containers. The unlimited ones need to have
// the same limit, the limited one a lower one.
limits := session.OutputToStringArray()
Expect(limits).To(HaveLen(3))
Expect(limits[0]).To(Equal(limits[1]))
Expect(limits[0]).ToNot(Equal(limits[2]))
defaultLimit, err := strconv.Atoi(limits[0])
Expect(err).To(BeNil())
customLimit, err := strconv.Atoi(limits[2])
Expect(err).To(BeNil())
Expect(customLimit).To(BeNumerically("<", defaultLimit))
})
})
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