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authorValentin Rothberg <rothberg@redhat.com>2019-01-09 14:54:58 +0100
committerValentin Rothberg <rothberg@redhat.com>2019-01-09 22:18:11 +0100
commitedb285d17675061832aceaf72021b87aba149438 (patch)
tree332f020dfc754a2a2ecaa80bd2891392c81305f1 /cmd/podman/create.go
parentc37f73159609b203545ca6fe54c86b9deacfca21 (diff)
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apparmor: apply default profile at container initialization
Apply the default AppArmor profile at container initialization to cover all possible code paths (i.e., podman-{start,run}) before executing the runtime. This allows moving most of the logic into pkg/apparmor. Also make the loading and application of the default AppArmor profile versio-indepenent by checking for the `libpod-default-` prefix and over-writing the profile in the run-time spec if needed. The intitial run-time spec of the container differs a bit from the applied one when having started the container, which results in displaying a potentially outdated AppArmor profile when inspecting a container. To fix that, load the container config from the file system if present and use it to display the data. Fixes: #2107 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Diffstat (limited to 'cmd/podman/create.go')
-rw-r--r--cmd/podman/create.go82
1 files changed, 1 insertions, 81 deletions
diff --git a/cmd/podman/create.go b/cmd/podman/create.go
index 395a64b3b..d98b78bd4 100644
--- a/cmd/podman/create.go
+++ b/cmd/podman/create.go
@@ -15,13 +15,11 @@ import (
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/libpod/image"
ann "github.com/containers/libpod/pkg/annotations"
- "github.com/containers/libpod/pkg/apparmor"
"github.com/containers/libpod/pkg/inspect"
ns "github.com/containers/libpod/pkg/namespaces"
"github.com/containers/libpod/pkg/rootless"
cc "github.com/containers/libpod/pkg/spec"
"github.com/containers/libpod/pkg/util"
- libpodVersion "github.com/containers/libpod/version"
"github.com/docker/docker/pkg/signal"
"github.com/docker/go-connections/nat"
"github.com/docker/go-units"
@@ -162,83 +160,9 @@ func createContainer(c *cli.Context, runtime *libpod.Runtime) (*libpod.Container
return ctr, createConfig, nil
}
-// Checks if a user-specified AppArmor profile is loaded, or loads the default profile if
-// AppArmor is enabled.
-// Any interaction with AppArmor requires root permissions.
-func loadAppArmor(config *cc.CreateConfig) error {
- if rootless.IsRootless() {
- noAAMsg := "AppArmor security is not available in rootless mode"
- switch config.ApparmorProfile {
- case "":
- logrus.Warn(noAAMsg)
- case "unconfined":
- default:
- return fmt.Errorf(noAAMsg)
- }
- return nil
- }
-
- if config.ApparmorProfile == "" && apparmor.IsEnabled() {
- // Unless specified otherwise, make sure that the default AppArmor
- // profile is installed. To avoid redundantly loading the profile
- // on each invocation, check if it's loaded before installing it.
- // Suffix the profile with the current libpod version to allow
- // loading the new, potentially updated profile after an update.
- profile := fmt.Sprintf("%s-%s", apparmor.DefaultLibpodProfile, libpodVersion.Version)
-
- loadProfile := func() error {
- isLoaded, err := apparmor.IsLoaded(profile)
- if err != nil {
- return err
- }
- if !isLoaded {
- err = apparmor.InstallDefault(profile)
- if err != nil {
- return err
- }
-
- }
- return nil
- }
-
- if err := loadProfile(); err != nil {
- switch err {
- case apparmor.ErrApparmorUnsupported:
- // do not set the profile when AppArmor isn't supported
- logrus.Debugf("AppArmor is not supported: setting empty profile")
- default:
- return err
- }
- } else {
- logrus.Infof("Sucessfully loaded AppAmor profile '%s'", profile)
- config.ApparmorProfile = profile
- }
- } else if config.ApparmorProfile != "" && config.ApparmorProfile != "unconfined" {
- if !apparmor.IsEnabled() {
- return fmt.Errorf("Profile specified but AppArmor is disabled on the host")
- }
-
- isLoaded, err := apparmor.IsLoaded(config.ApparmorProfile)
- if err != nil {
- switch err {
- case apparmor.ErrApparmorUnsupported:
- return fmt.Errorf("Profile specified but AppArmor is not supported")
- default:
- return fmt.Errorf("Error checking if AppArmor profile is loaded: %v", err)
- }
- }
- if !isLoaded {
- return fmt.Errorf("The specified AppArmor profile '%s' is not loaded", config.ApparmorProfile)
- }
- }
-
- return nil
-}
-
func parseSecurityOpt(config *cc.CreateConfig, securityOpts []string) error {
var (
labelOpts []string
- err error
)
if config.PidMode.IsHost() {
@@ -283,10 +207,6 @@ func parseSecurityOpt(config *cc.CreateConfig, securityOpts []string) error {
}
}
- if err := loadAppArmor(config); err != nil {
- return err
- }
-
if config.SeccompProfilePath == "" {
if _, err := os.Stat(libpod.SeccompOverridePath); err == nil {
config.SeccompProfilePath = libpod.SeccompOverridePath
@@ -304,7 +224,7 @@ func parseSecurityOpt(config *cc.CreateConfig, securityOpts []string) error {
}
}
config.LabelOpts = labelOpts
- return err
+ return nil
}
// isPortInPortBindings determines if an exposed host port is in user