v2specgen prune libpod

use libpod only in the specgen/generate package so that the remote clients do not inherit libpod bloat.

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

1 files changed, 62 insertions, 0 deletions

diff --git a/pkg/specgen/generate/config_linux_cgo.go b/pkg/specgen/generate/config_linux_cgo.go
new file mode 100644
index 000000000..b06ef5c9a
--- /dev/null
+++ b/pkg/specgen/generate/config_linux_cgo.go
@@ -0,0 +1,62 @@
+// +build linux,cgo
+
+package generate
+
+import (
+	"context"
+	"io/ioutil"
+
+	"github.com/containers/libpod/libpod/image"
+	"github.com/containers/libpod/pkg/seccomp"
+	"github.com/containers/libpod/pkg/specgen"
+	spec "github.com/opencontainers/runtime-spec/specs-go"
+	"github.com/pkg/errors"
+	goSeccomp "github.com/seccomp/containers-golang"
+	"github.com/sirupsen/logrus"
+)
+
+func getSeccompConfig(s *specgen.SpecGenerator, configSpec *spec.Spec, img *image.Image) (*spec.LinuxSeccomp, error) {
+	var seccompConfig *spec.LinuxSeccomp
+	var err error
+	scp, err := seccomp.LookupPolicy(s.SeccompPolicy)
+	if err != nil {
+		return nil, err
+	}
+
+	if scp == seccomp.PolicyImage {
+		labels, err := img.Labels(context.Background())
+		if err != nil {
+			return nil, err
+		}
+		imagePolicy := labels[seccomp.ContainerImageLabel]
+		if len(imagePolicy) < 1 {
+			return nil, errors.New("no seccomp policy defined by image")
+		}
+		logrus.Debug("Loading seccomp profile from the security config")
+		seccompConfig, err = goSeccomp.LoadProfile(imagePolicy, configSpec)
+		if err != nil {
+			return nil, errors.Wrap(err, "loading seccomp profile failed")
+		}
+		return seccompConfig, nil
+	}
+
+	if s.SeccompProfilePath != "" {
+		logrus.Debugf("Loading seccomp profile from %q", s.SeccompProfilePath)
+		seccompProfile, err := ioutil.ReadFile(s.SeccompProfilePath)
+		if err != nil {
+			return nil, errors.Wrapf(err, "opening seccomp profile (%s) failed", s.SeccompProfilePath)
+		}
+		seccompConfig, err = goSeccomp.LoadProfile(string(seccompProfile), configSpec)
+		if err != nil {
+			return nil, errors.Wrapf(err, "loading seccomp profile (%s) failed", s.SeccompProfilePath)
+		}
+	} else {
+		logrus.Debug("Loading default seccomp profile")
+		seccompConfig, err = goSeccomp.GetDefaultProfile(configSpec)
+		if err != nil {
+			return nil, errors.Wrapf(err, "loading seccomp profile (%s) failed", s.SeccompProfilePath)
+		}
+	}
+
+	return seccompConfig, nil
+}