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f3f4c54f2a
Implement a policy for selecting a seccomp profile. In addition to the default behaviour (default profile unless --security-opt seccomp is set) add a second policy doing a lookup in the image annotation. If the image has the "io.containers.seccomp.profile" set its value will be interpreted as a seccomp profile. The policy can be selected via the new --seccomp-policy CLI flag. Once the containers.conf support is merged into libpod, we can add an option there as well. Note that this feature is marked as experimental and may change in the future. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
47 lines
1.5 KiB
Go
47 lines
1.5 KiB
Go
// +build linux,cgo
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package createconfig
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import (
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"io/ioutil"
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spec "github.com/opencontainers/runtime-spec/specs-go"
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"github.com/pkg/errors"
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seccomp "github.com/seccomp/containers-golang"
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"github.com/sirupsen/logrus"
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)
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func getSeccompConfig(config *SecurityConfig, configSpec *spec.Spec) (*spec.LinuxSeccomp, error) {
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var seccompConfig *spec.LinuxSeccomp
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var err error
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if config.SeccompPolicy == SeccompPolicyImage && config.SeccompProfileFromImage != "" {
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logrus.Debug("Loading seccomp profile from the security config")
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seccompConfig, err = seccomp.LoadProfile(config.SeccompProfileFromImage, configSpec)
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if err != nil {
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return nil, errors.Wrap(err, "loading seccomp profile failed")
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}
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return seccompConfig, nil
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}
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if config.SeccompProfilePath != "" {
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logrus.Debugf("Loading seccomp profile from %q", config.SeccompProfilePath)
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seccompProfile, err := ioutil.ReadFile(config.SeccompProfilePath)
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if err != nil {
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return nil, errors.Wrapf(err, "opening seccomp profile (%s) failed", config.SeccompProfilePath)
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}
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seccompConfig, err = seccomp.LoadProfile(string(seccompProfile), configSpec)
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if err != nil {
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return nil, errors.Wrapf(err, "loading seccomp profile (%s) failed", config.SeccompProfilePath)
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}
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} else {
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logrus.Debug("Loading default seccomp profile")
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seccompConfig, err = seccomp.GetDefaultProfile(configSpec)
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if err != nil {
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return nil, errors.Wrapf(err, "loading seccomp profile (%s) failed", config.SeccompProfilePath)
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}
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}
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return seccompConfig, nil
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}
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