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stats: allow to read stats for paused containers

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paused containers still a cgroup we can use to grab the stats.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano
2021-09-09 16:56:33 +02:00
parent 63f6656f8f
commit 53dc99fa60
2 changed files with 7 additions and 2 deletions
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4
libpod/stats.go
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@ -30,7 +30,7 @@ func (c *Container) GetContainerStats(previousStats *define.ContainerStats) (*de
}
}
if c.state.State != define.ContainerStateRunning {
if c.state.State != define.ContainerStateRunning && c.state.State != define.ContainerStatePaused {
return stats, define.ErrCtrStateInvalid
}
@ -65,7 +65,7 @@ func (c *Container) GetContainerStats(previousStats *define.ContainerStats) (*de
stats.MemLimit = getMemLimit(cgroupStats.Memory.Usage.Limit)
stats.MemPerc = (float64(stats.MemUsage) / float64(stats.MemLimit)) * 100
stats.PIDs = 0
if conState == define.ContainerStateRunning {
if conState == define.ContainerStateRunning || conState == define.ContainerStatePaused {
stats.PIDs = cgroupStats.Pids.Current
}
stats.BlockInput, stats.BlockOutput = calculateBlockIO(cgroupStats)

5
test/e2e/pause_test.go
View File

@ -79,6 +79,11 @@ var _ = Describe("Podman pause", func() {
Expect(result).To(ExitWithError())
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
Expect(strings.ToLower(podmanTest.GetContainerStatus())).To(ContainSubstring(createdState))
// check we can read stats for a paused container
result = podmanTest.Podman([]string{"stats", "--no-stream", cid})
result.WaitWithDefaultTimeout()
Expect(result).To(ExitWithError())
})
It("podman pause a running container by id", func() {