mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
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dede03f322
This change consolidates the logic for determining requested devices from the container image. The logic for this has been integrated into the image.CUDA type so that multiple implementations are not required. Signed-off-by: Carlos Eduardo Arango Gutierrez <eduardoa@nvidia.com> Co-authored-by: Evan Lezar <elezar@nvidia.com>
63 lines
1.6 KiB
Go
63 lines
1.6 KiB
Go
/**
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# Copyright (c) NVIDIA CORPORATION. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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**/
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package image
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import (
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"github.com/opencontainers/runtime-spec/specs-go"
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)
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const (
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capSysAdmin = "CAP_SYS_ADMIN"
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)
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type CapabilitiesGetter interface {
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GetCapabilities() []string
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}
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type OCISpec specs.Spec
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type OCISpecCapabilities specs.LinuxCapabilities
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// IsPrivileged returns true if the container is a privileged container.
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func IsPrivileged(s CapabilitiesGetter) bool {
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if s == nil {
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return false
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}
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for _, c := range s.GetCapabilities() {
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if c == capSysAdmin {
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return true
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}
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}
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return false
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}
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func (s OCISpec) GetCapabilities() []string {
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if s.Process == nil || s.Process.Capabilities == nil {
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return nil
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}
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return (*OCISpecCapabilities)(s.Process.Capabilities).GetCapabilities()
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}
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func (c OCISpecCapabilities) GetCapabilities() []string {
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// We only make sure that the bounding capability set has
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// CAP_SYS_ADMIN. This allows us to make sure that the container was
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// actually started as '--privileged', but also allow non-root users to
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// access the privileged NVIDIA capabilities.
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return c.Bounding
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}
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