50da673592
The io/ioutil package has been deprecated as of Go 1.16, see https://golang.org/doc/go1.16#ioutil. This commit replaces the existing io/ioutil functions with their new definitions in io and os packages. Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
55 lines
1.8 KiB
Go
55 lines
1.8 KiB
Go
/*
|
|
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 seccomp
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
"os"
|
|
|
|
"github.com/containerd/containerd/containers"
|
|
"github.com/containerd/containerd/oci"
|
|
"github.com/opencontainers/runtime-spec/specs-go"
|
|
)
|
|
|
|
// WithProfile receives the name of a file stored on disk comprising a json
|
|
// formatted seccomp profile, as specified by the opencontainers/runtime-spec.
|
|
// The profile is read from the file, unmarshaled, and set to the spec.
|
|
func WithProfile(profile string) oci.SpecOpts {
|
|
return func(_ context.Context, _ oci.Client, _ *containers.Container, s *specs.Spec) error {
|
|
s.Linux.Seccomp = &specs.LinuxSeccomp{}
|
|
f, err := os.ReadFile(profile)
|
|
if err != nil {
|
|
return fmt.Errorf("cannot load seccomp profile %q: %v", profile, err)
|
|
}
|
|
if err := json.Unmarshal(f, s.Linux.Seccomp); err != nil {
|
|
return fmt.Errorf("decoding seccomp profile failed %q: %v", profile, err)
|
|
}
|
|
return nil
|
|
}
|
|
}
|
|
|
|
// WithDefaultProfile sets the default seccomp profile to the spec.
|
|
// Note: must follow the setting of process capabilities
|
|
func WithDefaultProfile() oci.SpecOpts {
|
|
return func(_ context.Context, _ oci.Client, _ *containers.Container, s *specs.Spec) error {
|
|
s.Linux.Seccomp = DefaultProfile(s)
|
|
return nil
|
|
}
|
|
}
|