v2podman container create

create a container in podmanv2 using specgen approach.  this is the core implementation and still has quite a bit of code commented out specifically around volumes, devices, and namespaces.  need contributions from smes on these parts.

Signed-off-by: Brent Baude <bbaude@redhat.com>

1 files changed, 165 insertions, 0 deletions

diff --git a/pkg/specgen/security.go b/pkg/specgen/security.go
new file mode 100644
index 000000000..158e4a7b3
--- /dev/null
+++ b/pkg/specgen/security.go
@@ -0,0 +1,165 @@
+package specgen
+
+// ToCreateOptions convert the SecurityConfig to a slice of container create
+// options.
+/*
+func (c *SecurityConfig) ToCreateOptions() ([]libpod.CtrCreateOption, error) {
+	options := make([]libpod.CtrCreateOption, 0)
+	options = append(options, libpod.WithSecLabels(c.LabelOpts))
+	options = append(options, libpod.WithPrivileged(c.Privileged))
+	return options, nil
+}
+*/
+
+// SetLabelOpts sets the label options of the SecurityConfig according to the
+// input.
+/*
+func (c *SecurityConfig) SetLabelOpts(runtime *libpod.Runtime, pidConfig *PidConfig, ipcConfig *IpcConfig) error {
+	if c.Privileged {
+		c.LabelOpts = label.DisableSecOpt()
+		return nil
+	}
+
+	var labelOpts []string
+	if pidConfig.PidMode.IsHost() {
+		labelOpts = append(labelOpts, label.DisableSecOpt()...)
+	} else if pidConfig.PidMode.IsContainer() {
+		ctr, err := runtime.LookupContainer(pidConfig.PidMode.Container())
+		if err != nil {
+			return errors.Wrapf(err, "container %q not found", pidConfig.PidMode.Container())
+		}
+		secopts, err := label.DupSecOpt(ctr.ProcessLabel())
+		if err != nil {
+			return errors.Wrapf(err, "failed to duplicate label %q ", ctr.ProcessLabel())
+		}
+		labelOpts = append(labelOpts, secopts...)
+	}
+
+	if ipcConfig.IpcMode.IsHost() {
+		labelOpts = append(labelOpts, label.DisableSecOpt()...)
+	} else if ipcConfig.IpcMode.IsContainer() {
+		ctr, err := runtime.LookupContainer(ipcConfig.IpcMode.Container())
+		if err != nil {
+			return errors.Wrapf(err, "container %q not found", ipcConfig.IpcMode.Container())
+		}
+		secopts, err := label.DupSecOpt(ctr.ProcessLabel())
+		if err != nil {
+			return errors.Wrapf(err, "failed to duplicate label %q ", ctr.ProcessLabel())
+		}
+		labelOpts = append(labelOpts, secopts...)
+	}
+
+	c.LabelOpts = append(c.LabelOpts, labelOpts...)
+	return nil
+}
+*/
+
+// SetSecurityOpts the the security options (labels, apparmor, seccomp, etc.).
+func SetSecurityOpts(securityOpts []string) error {
+	return nil
+}
+
+// ConfigureGenerator configures the generator according to the input.
+/*
+func (c *SecurityConfig) ConfigureGenerator(g *generate.Generator, user *UserConfig) error {
+	// HANDLE CAPABILITIES
+	// NOTE: Must happen before SECCOMP
+	if c.Privileged {
+		g.SetupPrivileged(true)
+	}
+
+	useNotRoot := func(user string) bool {
+		if user == "" || user == "root" || user == "0" {
+			return false
+		}
+		return true
+	}
+
+	configSpec := g.Config
+	var err error
+	var defaultCaplist []string
+	bounding := configSpec.Process.Capabilities.Bounding
+	if useNotRoot(user.User) {
+		configSpec.Process.Capabilities.Bounding = defaultCaplist
+	}
+	defaultCaplist, err = capabilities.MergeCapabilities(configSpec.Process.Capabilities.Bounding, c.CapAdd, c.CapDrop)
+	if err != nil {
+		return err
+	}
+
+	privCapRequired := []string{}
+
+	if !c.Privileged && len(c.CapRequired) > 0 {
+		// Pass CapRequired in CapAdd field to normalize capabilities names
+		capRequired, err := capabilities.MergeCapabilities(nil, c.CapRequired, nil)
+		if err != nil {
+			logrus.Errorf("capabilities requested by user or image are not valid: %q", strings.Join(c.CapRequired, ","))
+		} else {
+			// Verify all capRequiered are in the defaultCapList
+			for _, cap := range capRequired {
+				if !util.StringInSlice(cap, defaultCaplist) {
+					privCapRequired = append(privCapRequired, cap)
+				}
+			}
+		}
+		if len(privCapRequired) == 0 {
+			defaultCaplist = capRequired
+		} else {
+			logrus.Errorf("capabilities requested by user or image are not allowed by default: %q", strings.Join(privCapRequired, ","))
+		}
+	}
+	configSpec.Process.Capabilities.Bounding = defaultCaplist
+	configSpec.Process.Capabilities.Permitted = defaultCaplist
+	configSpec.Process.Capabilities.Inheritable = defaultCaplist
+	configSpec.Process.Capabilities.Effective = defaultCaplist
+	configSpec.Process.Capabilities.Ambient = defaultCaplist
+	if useNotRoot(user.User) {
+		defaultCaplist, err = capabilities.MergeCapabilities(bounding, c.CapAdd, c.CapDrop)
+		if err != nil {
+			return err
+		}
+	}
+	configSpec.Process.Capabilities.Bounding = defaultCaplist
+
+	// HANDLE SECCOMP
+	if c.SeccompProfilePath != "unconfined" {
+		seccompConfig, err := getSeccompConfig(c, configSpec)
+		if err != nil {
+			return err
+		}
+		configSpec.Linux.Seccomp = seccompConfig
+	}
+
+	// Clear default Seccomp profile from Generator for privileged containers
+	if c.SeccompProfilePath == "unconfined" || c.Privileged {
+		configSpec.Linux.Seccomp = nil
+	}
+
+	for _, opt := range c.SecurityOpts {
+		// Split on both : and =
+		splitOpt := strings.Split(opt, "=")
+		if len(splitOpt) == 1 {
+			splitOpt = strings.Split(opt, ":")
+		}
+		if len(splitOpt) < 2 {
+			continue
+		}
+		switch splitOpt[0] {
+		case "label":
+			configSpec.Annotations[libpod.InspectAnnotationLabel] = splitOpt[1]
+		case "seccomp":
+			configSpec.Annotations[libpod.InspectAnnotationSeccomp] = splitOpt[1]
+		case "apparmor":
+			configSpec.Annotations[libpod.InspectAnnotationApparmor] = splitOpt[1]
+		}
+	}
+
+	g.SetRootReadonly(c.ReadOnlyRootfs)
+	for sysctlKey, sysctlVal := range c.Sysctl {
+		g.AddLinuxSysctl(sysctlKey, sysctlVal)
+	}
+
+	return nil
+}
+
+*/