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Add ability to set system wide options for slirp4netns

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Wire in containers.conf options for slirp

Signed-off-by: Ashley Cui <acui@redhat.com>
This commit is contained in:
Ashley Cui
2020-12-04 13:37:22 -05:00
parent 90d41104d9
commit d6d3af9e8e
3 changed files with 72 additions and 60 deletions
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7
libpod/networking_linux.go
View File

@ -245,7 +245,7 @@ func (r *Runtime) setupRootlessNetNS(ctr *Container) error {
// setupSlirp4netns can be called in rootful as well as in rootless
func (r *Runtime) setupSlirp4netns(ctr *Container) error {
path := r.config.Engine.NetworkCmdPath
slirpOptions := r.config.Engine.NetworkCmdOptions
if path == "" {
var err error
path, err = exec.LookPath("slirp4netns")
@ -273,7 +273,9 @@ func (r *Runtime) setupSlirp4netns(ctr *Container) error {
outboundAddr6 := ""
if ctr.config.NetworkOptions != nil {
slirpOptions := ctr.config.NetworkOptions["slirp4netns"]
slirpOptions = append(slirpOptions, ctr.config.NetworkOptions["slirp4netns"]...)
}
for _, o := range slirpOptions {
parts := strings.SplitN(o, "=", 2)
if len(parts) < 2 {
@ -336,7 +338,6 @@ func (r *Runtime) setupSlirp4netns(ctr *Container) error {
return errors.Errorf("unknown option for slirp4netns: %q", o)
}
}
}
cmdArgs := []string{}
slirpFeatures, err := checkSlirpFlags(path)

4
test/e2e/config/containers.conf
View File

@ -52,3 +52,7 @@ dns_options=[ "debug", ]
tz = "Pacific/Honolulu"
umask = "0002"
[engine]
network_cmd_options=["allow_host_loopback=true"]

7
test/e2e/containers_conf_test.go
View File

@ -258,6 +258,12 @@ var _ = Describe("Podman run", func() {
Expect(session.OutputToString()).To(Equal("0002"))
})
It("podman set network cmd options slirp options to allow host loopback", func() {
session := podmanTest.Podman([]string{"run", "--network", "slirp4netns", ALPINE, "ping", "-c1", "10.0.2.2"})
session.Wait(30)
Expect(session.ExitCode()).To(Equal(0))
})
It("podman-remote test localcontainers.conf versus remote containers.conf", func() {
if !IsRemote() {
Skip("this test is only for remote")
@ -311,4 +317,5 @@ var _ = Describe("Podman run", func() {
Expect(session.ExitCode()).To(Equal(0))
Expect(session.OutputToString()).To(Equal("0022"))
})
})