diff --git a/docs/source/markdown/podman-generate-kube.1.md b/docs/source/markdown/podman-generate-kube.1.md index 9ae3941ecc..a583afcf9f 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 f5291ce60a..d2ac157490 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 []ocicni.PortMapping) ([]v1.C } // 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 07515fe7b2..21f4ad8fa2 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]