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play kube selinux label issue #9205

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Feb 5, 2021
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6 changes: 3 additions & 3 deletions pkg/specgen/generate/kube/kube.go
Original file line number Diff line number Diff line change
Expand Up @@ -282,16 +282,16 @@ func setupSecurityContext(s *specgen.SpecGenerator, containerYAML v1.Container)

if seopt := containerYAML.SecurityContext.SELinuxOptions; seopt != nil {
if seopt.User != "" {
s.SelinuxOpts = append(s.SelinuxOpts, fmt.Sprintf("role:%s", seopt.User))
s.SelinuxOpts = append(s.SelinuxOpts, fmt.Sprintf("user:%s", seopt.User))
}
if seopt.Role != "" {
s.SelinuxOpts = append(s.SelinuxOpts, fmt.Sprintf("role:%s", seopt.Role))
}
if seopt.Type != "" {
s.SelinuxOpts = append(s.SelinuxOpts, fmt.Sprintf("role:%s", seopt.Type))
s.SelinuxOpts = append(s.SelinuxOpts, fmt.Sprintf("type:%s", seopt.Type))
}
if seopt.Level != "" {
s.SelinuxOpts = append(s.SelinuxOpts, fmt.Sprintf("role:%s", seopt.Level))
s.SelinuxOpts = append(s.SelinuxOpts, fmt.Sprintf("level:%s", seopt.Level))
}
}
if caps := containerYAML.SecurityContext.Capabilities; caps != nil {
Expand Down
62 changes: 62 additions & 0 deletions test/e2e/play_kube_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@ import (
. "github.com/containers/podman/v2/test/utils"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/opencontainers/selinux/go-selinux"
)

var unknownKindYaml = `
Expand All @@ -26,6 +27,49 @@ spec:
hostname: unknown
`

var selinuxLabelPodYaml = `
apiVersion: v1
kind: Pod
metadata:
creationTimestamp: "2021-02-02T22:18:20Z"
labels:
app: label-pod
name: label-pod
spec:
containers:
- command:
- top
- -d
- "1.5"
env:
- name: PATH
value: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
- name: TERM
value: xterm
- name: container
value: podman
- name: HOSTNAME
value: label-pod
image: quay.io/libpod/alpine:latest
name: test
securityContext:
allowPrivilegeEscalation: true
capabilities:
drop:
- CAP_MKNOD
- CAP_NET_RAW
- CAP_AUDIT_WRITE
privileged: false
readOnlyRootFilesystem: false
seLinuxOptions:
user: unconfined_u
role: system_r
type: spc_t
level: s0
workingDir: /
status: {}
`

var configMapYamlTemplate = `
apiVersion: v1
kind: ConfigMap
Expand Down Expand Up @@ -803,6 +847,24 @@ var _ = Describe("Podman play kube", func() {

})

It("podman play kube fail with custom selinux label", func() {
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You have to add this to get pass the CI:

if !selinux.GetEnabled() {
	Skip("SELinux not enabled")
}

And make sure you import github.com/opencontainers/selinux/go-selinux at the top.

The test doesn't work on systems without selinux support like ubuntu.

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sorry hadn't considered cases where selinux is not enabled, have updated the test

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You need to add.

	if !selinux.GetEnabled() {
		Skip("SELinux not enabled")
       }

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sorry hadn't considered cases where selinux is not enabled, have updated the test

if !selinux.GetEnabled() {
Skip("SELinux not enabled")
}
err := writeYaml(selinuxLabelPodYaml, kubeYaml)
Expect(err).To(BeNil())

kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
kube.WaitWithDefaultTimeout()
Expect(kube.ExitCode()).To(Equal(0))

inspect := podmanTest.Podman([]string{"inspect", "label-pod-test", "--format", "'{{ .ProcessLabel }}'"})
inspect.WaitWithDefaultTimeout()
label := inspect.OutputToString()

Expect(label).To(ContainSubstring("unconfined_u:system_r:spc_t:s0"))
})

It("podman play kube fail with nonexistent authfile", func() {
err := generateKubeYaml("pod", getPod(), kubeYaml)
Expect(err).To(BeNil())
Expand Down