mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
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833254fa59
This change allows CDI devices to be requested as mounts in the container. This enables their use in environments such as kind where environment variables or annotations cannot be used. Signed-off-by: Evan Lezar <elezar@nvidia.com>
103 lines
2.5 KiB
Go
103 lines
2.5 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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"fmt"
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"strings"
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"github.com/opencontainers/runtime-spec/specs-go"
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)
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type builder struct {
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env map[string]string
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mounts []specs.Mount
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disableRequire bool
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}
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// New creates a new CUDA image from the input options.
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func New(opt ...Option) (CUDA, error) {
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b := &builder{}
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for _, o := range opt {
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if err := o(b); err != nil {
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return CUDA{}, err
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}
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}
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if b.env == nil {
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b.env = make(map[string]string)
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}
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return b.build()
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}
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// build creates a CUDA image from the builder.
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func (b builder) build() (CUDA, error) {
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if b.disableRequire {
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b.env[envNVDisableRequire] = "true"
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}
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c := CUDA{
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env: b.env,
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mounts: b.mounts,
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}
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return c, nil
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}
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// Option is a functional option for creating a CUDA image.
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type Option func(*builder) error
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// WithDisableRequire sets the disable require option.
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func WithDisableRequire(disableRequire bool) Option {
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return func(b *builder) error {
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b.disableRequire = disableRequire
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return nil
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}
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}
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// WithEnv sets the environment variables to use when creating the CUDA image.
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// Note that this also overwrites the values set with WithEnvMap.
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func WithEnv(env []string) Option {
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return func(b *builder) error {
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envmap := make(map[string]string)
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for _, e := range env {
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parts := strings.SplitN(e, "=", 2)
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if len(parts) != 2 {
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return fmt.Errorf("invalid environment variable: %v", e)
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}
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envmap[parts[0]] = parts[1]
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}
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return WithEnvMap(envmap)(b)
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}
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}
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// WithEnvMap sets the environment variable map to use when creating the CUDA image.
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// Note that this also overwrites the values set with WithEnv.
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func WithEnvMap(env map[string]string) Option {
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return func(b *builder) error {
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b.env = env
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return nil
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}
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}
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// WithMounts sets the mounts associated with the CUDA image.
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func WithMounts(mounts []specs.Mount) Option {
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return func(b *builder) error {
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b.mounts = mounts
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return nil
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}
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}
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