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Validate the bind-propagation option to --mount #24124

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Validate the bind-propagation option to --mount #24124

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6 changes: 6 additions & 0 deletions pkg/specgenutil/volumes.go
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Original file line number Diff line number Diff line change
Expand Up @@ -272,6 +272,12 @@ func parseMountOptions(mountType string, args []string) (*spec.Mount, error) {
if !hasValue {
return nil, fmt.Errorf("%v: %w", name, errOptionArg)
}
switch value {
case "shared", "rshared", "private", "rprivate", "slave", "rslave", "unbindable", "runbindable":
// Do nothing, sane value
default:
return nil, fmt.Errorf("invalid value %q for mount option", value)
}
mnt.Options = append(mnt.Options, value)
case "consistency":
// Often used on MACs and mistakenly on Linux platforms.
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4 changes: 4 additions & 0 deletions test/e2e/run_volume_test.go
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Expand Up @@ -122,6 +122,10 @@ var _ = Describe("Podman run with volumes", func() {
session.WaitWithDefaultTimeout()
Expect(session).To(ExitWithError(125, `"notmpcopyup" option not supported for "bind" mount types`))

session = podmanTest.Podman([]string{"run", "--rm", "--mount", "type=bind,src=/tmp,target=/tmp,bind-propagation=fake", ALPINE, "true"})
session.WaitWithDefaultTimeout()
Expect(session).To(ExitWithError(125, `invalid value "fake" for bind-propagation mount option`))

session = podmanTest.Podman([]string{"run", "--rm", "--mount", "type=tmpfs,target=/etc/ssl,notmpcopyup", ALPINE, "ls", "/etc/ssl"})
session.WaitWithDefaultTimeout()
Expect(session).Should(ExitCleanly())
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