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-rw-r--r--docs/source/markdown/podman-generate-kube.1.md56
-rw-r--r--libpod/kube.go64
-rw-r--r--test/e2e/generate_kube_test.go9
3 files changed, 55 insertions, 74 deletions
diff --git a/docs/source/markdown/podman-generate-kube.1.md b/docs/source/markdown/podman-generate-kube.1.md
index 9ae3941ec..a583afcf9 100644
--- a/docs/source/markdown/podman-generate-kube.1.md
+++ b/docs/source/markdown/podman-generate-kube.1.md
@@ -54,13 +54,7 @@ spec:
- docker-entrypoint.sh
- mysqld
env:
- - name: PATH
- value: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
- - name: TERM
- value: xterm
- name: HOSTNAME
- - name: container
- value: podman
- name: GOSU_VERSION
value: "1.10"
- name: GPG_KEYS
@@ -77,14 +71,14 @@ spec:
ports:
- containerPort: 3306
hostPort: 36533
- protocol: TCP
resources: {}
securityContext:
- allowPrivilegeEscalation: true
- privileged: false
- readOnlyRootFilesystem: false
+ capabilities:
+ drop:
+ - CAP_MKNOD
+ - CAP_NET_RAW
+ - CAP_AUDIT_WRITE
tty: true
- workingDir: /
status: {}
```
@@ -106,31 +100,18 @@ spec:
containers:
- command:
- /bin/sh
- env:
- - name: PATH
- value: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
- - name: TERM
- value: xterm
- - name: container
- value: podman
image: docker.io/library/alpine:latest
name: test-bind-mount
resources: {}
securityContext:
- allowPrivilegeEscalation: true
capabilities:
drop:
- CAP_MKNOD
- CAP_NET_RAW
- CAP_AUDIT_WRITE
- privileged: false
- readOnlyRootFilesystem: false
- seLinuxOptions: {}
volumeMounts:
- mountPath: /volume
name: home-user-my-data-host
- workingDir: /
- dnsConfig: {}
restartPolicy: Never
volumes:
- hostPath:
@@ -158,31 +139,18 @@ spec:
containers:
- command:
- /bin/sh
- env:
- - name: PATH
- value: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
- - name: TERM
- value: xterm
- - name: container
- value: podman
image: docker.io/library/alpine:latest
name: test-bind-mount
resources: {}
securityContext:
- allowPrivilegeEscalation: true
capabilities:
drop:
- CAP_MKNOD
- CAP_NET_RAW
- CAP_AUDIT_WRITE
- privileged: false
- readOnlyRootFilesystem: false
- seLinuxOptions: {}
volumeMounts:
- mountPath: /volume
name: priceless-data-pvc
- workingDir: /
- dnsConfig: {}
restartPolicy: Never
volumes:
- name: priceless-data-pvc
@@ -210,22 +178,9 @@ spec:
- command:
- python3
- /root/code/graph.py
- env:
- - name: PATH
- value: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
- - name: TERM
- value: xterm
- - name: HOSTNAME
- - name: container
- value: podman
image: quay.io/baude/demoweb:latest
name: practicalarchimedes
resources: {}
- securityContext:
- allowPrivilegeEscalation: true
- capabilities: {}
- privileged: false
- readOnlyRootFilesystem: false
tty: true
workingDir: /root/code
status: {}
@@ -242,7 +197,6 @@ spec:
- name: "8050"
nodePort: 31269
port: 8050
- protocol: TCP
targetPort: 0
selector:
app: demoweb
diff --git a/libpod/kube.go b/libpod/kube.go
index d47f47f1c..02ac8ed98 100644
--- a/libpod/kube.go
+++ b/libpod/kube.go
@@ -332,7 +332,7 @@ func newPodObject(podName string, annotations map[string]string, initCtrs, conta
InitContainers: initCtrs,
Volumes: volumes,
}
- if dnsOptions != nil {
+ if dnsOptions != nil && (len(dnsOptions.Nameservers)+len(dnsOptions.Searches)+len(dnsOptions.Options) > 0) {
ps.DNSConfig = dnsOptions
}
p := v1.Pod{
@@ -447,11 +447,6 @@ func containerToV1Container(ctx context.Context, c *Container) (v1.Container, []
kubeVolumes = append(kubeVolumes, volumes...)
}
- envVariables, err := libpodEnvVarsToKubeEnvVars(c.config.Spec.Process.Env)
- if err != nil {
- return kubeContainer, kubeVolumes, nil, annotations, err
- }
-
portmappings, err := c.PortMappings()
if err != nil {
return kubeContainer, kubeVolumes, nil, annotations, err
@@ -489,15 +484,23 @@ func containerToV1Container(ctx context.Context, c *Container) (v1.Container, []
kubeContainer.Command = nil
}
+ if c.WorkingDir() != "/" && imgData.Config.WorkingDir != c.WorkingDir() {
+ kubeContainer.WorkingDir = c.WorkingDir()
+ }
+
if imgData.User == c.User() {
kubeSec.RunAsGroup, kubeSec.RunAsUser = nil, nil
}
- kubeContainer.WorkingDir = c.WorkingDir()
+ envVariables, err := libpodEnvVarsToKubeEnvVars(c.config.Spec.Process.Env, imgData.Config.Env)
+ if err != nil {
+ return kubeContainer, kubeVolumes, nil, annotations, err
+ }
+ kubeContainer.Env = envVariables
+
kubeContainer.Ports = ports
// This should not be applicable
//container.EnvFromSource =
- kubeContainer.Env = envVariables
kubeContainer.SecurityContext = kubeSec
kubeContainer.StdinOnce = false
kubeContainer.TTY = c.config.Spec.Process.Terminal
@@ -600,9 +603,14 @@ func ocicniPortMappingToContainerPort(portMappings []types.OCICNIPortMapping) ([
}
// libpodEnvVarsToKubeEnvVars converts a key=value string slice to []v1.EnvVar
-func libpodEnvVarsToKubeEnvVars(envs []string) ([]v1.EnvVar, error) {
+func libpodEnvVarsToKubeEnvVars(envs []string, imageEnvs []string) ([]v1.EnvVar, error) {
defaultEnv := env.DefaultEnvVariables()
envVars := make([]v1.EnvVar, 0, len(envs))
+ imageMap := make(map[string]string, len(imageEnvs))
+ for _, ie := range envs {
+ split := strings.SplitN(ie, "=", 2)
+ imageMap[split[0]] = split[1]
+ }
for _, e := range envs {
split := strings.SplitN(e, "=", 2)
if len(split) != 2 {
@@ -611,6 +619,9 @@ func libpodEnvVarsToKubeEnvVars(envs []string) ([]v1.EnvVar, error) {
if defaultEnv[split[0]] == split[1] {
continue
}
+ if imageMap[split[0]] == split[1] {
+ continue
+ }
ev := v1.EnvVar{
Name: split[0],
Value: split[1],
@@ -808,33 +819,42 @@ func generateKubeSecurityContext(c *Container) (*v1.SecurityContext, error) {
capabilities = newCaps
}
+ sc := v1.SecurityContext{
+ // RunAsNonRoot is an optional parameter; our first implementations should be root only; however
+ // I'm leaving this as a bread-crumb for later
+ //RunAsNonRoot: &nonRoot,
+ }
+ if capabilities != nil {
+ sc.Capabilities = capabilities
+ }
var selinuxOpts v1.SELinuxOptions
opts := strings.SplitN(c.config.Spec.Annotations[define.InspectAnnotationLabel], ":", 2)
- if len(opts) == 2 {
+ switch len(opts) {
+ case 2:
switch opts[0] {
case "type":
selinuxOpts.Type = opts[1]
+ sc.SELinuxOptions = &selinuxOpts
case "level":
selinuxOpts.Level = opts[1]
+ sc.SELinuxOptions = &selinuxOpts
}
- }
- if len(opts) == 1 {
+ case 1:
if opts[0] == "disable" {
selinuxOpts.Type = "spc_t"
+ sc.SELinuxOptions = &selinuxOpts
}
}
- sc := v1.SecurityContext{
- Capabilities: capabilities,
- Privileged: &privileged,
- SELinuxOptions: &selinuxOpts,
- // RunAsNonRoot is an optional parameter; our first implementations should be root only; however
- // I'm leaving this as a bread-crumb for later
- //RunAsNonRoot: &nonRoot,
- ReadOnlyRootFilesystem: &ro,
- AllowPrivilegeEscalation: &allowPrivEscalation,
+ if !allowPrivEscalation {
+ sc.AllowPrivilegeEscalation = &allowPrivEscalation
+ }
+ if privileged {
+ sc.Privileged = &privileged
+ }
+ if ro {
+ sc.ReadOnlyRootFilesystem = &ro
}
-
if c.User() != "" {
if !c.batched {
c.lock.Lock()
diff --git a/test/e2e/generate_kube_test.go b/test/e2e/generate_kube_test.go
index 69941494b..cd382eba9 100644
--- a/test/e2e/generate_kube_test.go
+++ b/test/e2e/generate_kube_test.go
@@ -67,6 +67,10 @@ var _ = Describe("Podman generate kube", func() {
err := yaml.Unmarshal(kube.Out.Contents(), pod)
Expect(err).To(BeNil())
Expect(pod.Spec.HostNetwork).To(Equal(false))
+ Expect(pod.Spec.SecurityContext).To(BeNil())
+ Expect(pod.Spec.DNSConfig).To(BeNil())
+ Expect(pod.Spec.Containers[0].WorkingDir).To(Equal(""))
+ Expect(pod.Spec.Containers[0].Env).To(BeNil())
numContainers := 0
for range pod.Spec.Containers {
@@ -103,6 +107,7 @@ var _ = Describe("Podman generate kube", func() {
err = yaml.Unmarshal(kube.Out.Contents(), pod)
Expect(err).To(BeNil())
Expect(kube.OutputToString()).To(ContainSubstring("type: spc_t"))
+
})
It("podman generate service kube on container with --security-opt type", func() {
@@ -1079,7 +1084,7 @@ USER test1`
top1.WaitWithDefaultTimeout()
Expect(top1).Should(Exit(0))
- top2 := podmanTest.Podman([]string{"run", "-dt", "--name", "top2", "--pod", "pod1", "--label", "io.containers.autoupdate=registry", "--label", "io.containers.autoupdate.authfile=/some/authfile.json", ALPINE, "top"})
+ top2 := podmanTest.Podman([]string{"run", "-dt", "--name", "top2", "--workdir", "/root", "--pod", "pod1", "--label", "io.containers.autoupdate=registry", "--label", "io.containers.autoupdate.authfile=/some/authfile.json", ALPINE, "top"})
top2.WaitWithDefaultTimeout()
Expect(top2).Should(Exit(0))
@@ -1090,6 +1095,8 @@ USER test1`
pod := new(v1.Pod)
err := yaml.Unmarshal(kube.Out.Contents(), pod)
Expect(err).To(BeNil())
+ Expect(pod.Spec.Containers[0].WorkingDir).To(Equal(""))
+ Expect(pod.Spec.Containers[1].WorkingDir).To(Equal("/root"))
for _, ctr := range []string{"top1", "top2"} {
v, ok := pod.GetAnnotations()["io.containers.autoupdate/"+ctr]
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-09-30 19:38:45 +0000