bbe46b8c43
Signed-off-by: haoyun <yun.hao@daocloud.io> Co-authored-by: zounengren <zouyee1989@gmail.com>
97 lines
2.4 KiB
Go
97 lines
2.4 KiB
Go
//go:build linux
|
|
// +build linux
|
|
|
|
/*
|
|
Copyright The containerd Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package apparmor
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"fmt"
|
|
"os"
|
|
|
|
"github.com/containerd/containerd/containers"
|
|
"github.com/containerd/containerd/oci"
|
|
specs "github.com/opencontainers/runtime-spec/specs-go"
|
|
)
|
|
|
|
// WithProfile sets the provided apparmor profile to the spec
|
|
func WithProfile(profile string) oci.SpecOpts {
|
|
return func(_ context.Context, _ oci.Client, _ *containers.Container, s *specs.Spec) error {
|
|
s.Process.ApparmorProfile = profile
|
|
return nil
|
|
}
|
|
}
|
|
|
|
// WithDefaultProfile will generate a default apparmor profile under the provided name
|
|
// for the container. It is only generated if a profile under that name does not exist.
|
|
func WithDefaultProfile(name string) oci.SpecOpts {
|
|
return func(_ context.Context, _ oci.Client, _ *containers.Container, s *specs.Spec) error {
|
|
if err := LoadDefaultProfile(name); err != nil {
|
|
return err
|
|
}
|
|
s.Process.ApparmorProfile = name
|
|
return nil
|
|
}
|
|
}
|
|
|
|
// LoadDefaultProfile ensures the default profile to be loaded with the given name.
|
|
// Returns nil error if the profile is already loaded.
|
|
func LoadDefaultProfile(name string) error {
|
|
yes, err := isLoaded(name)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if yes {
|
|
return nil
|
|
}
|
|
p, err := loadData(name)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
f, err := os.CreateTemp(os.Getenv("XDG_RUNTIME_DIR"), p.Name)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer f.Close()
|
|
path := f.Name()
|
|
defer os.Remove(path)
|
|
|
|
if err := generate(p, f); err != nil {
|
|
return err
|
|
}
|
|
if err := load(path); err != nil {
|
|
return fmt.Errorf("load apparmor profile %s: %w", path, err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// DumpDefaultProfile dumps the default profile with the given name.
|
|
func DumpDefaultProfile(name string) (string, error) {
|
|
p, err := loadData(name)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
var buf bytes.Buffer
|
|
if err := generate(p, &buf); err != nil {
|
|
return "", err
|
|
}
|
|
return buf.String(), nil
|
|
}
|