86 lines
2.7 KiB
Go
86 lines
2.7 KiB
Go
/*
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Copyright The containerd Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 commands
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import (
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"context"
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"os"
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"strconv"
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containerd "github.com/containerd/containerd/v2/client"
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"github.com/containerd/containerd/v2/pkg/epoch"
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"github.com/containerd/containerd/v2/pkg/namespaces"
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"github.com/containerd/log"
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"github.com/urfave/cli/v2"
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)
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// AppContext returns the context for a command. Should only be called once per
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// command, near the start.
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//
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// This will ensure the namespace is picked up and set the timeout, if one is
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// defined.
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func AppContext(cliContext *cli.Context) (context.Context, context.CancelFunc) {
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var (
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ctx = cliContext.Context
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timeout = cliContext.Duration("timeout")
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namespace = cliContext.String("namespace")
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cancel context.CancelFunc
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)
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ctx = namespaces.WithNamespace(ctx, namespace)
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if timeout > 0 {
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ctx, cancel = context.WithTimeout(ctx, timeout)
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} else {
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ctx, cancel = context.WithCancel(ctx)
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}
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if tm, err := epoch.SourceDateEpoch(); err != nil {
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log.L.WithError(err).Warn("Failed to read SOURCE_DATE_EPOCH")
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} else if tm != nil {
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log.L.Debugf("Using SOURCE_DATE_EPOCH: %v", tm)
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ctx = epoch.WithSourceDateEpoch(ctx, tm)
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}
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return ctx, cancel
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}
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// NewClient returns a new containerd client
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func NewClient(cliContext *cli.Context, opts ...containerd.Opt) (*containerd.Client, context.Context, context.CancelFunc, error) {
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timeoutOpt := containerd.WithTimeout(cliContext.Duration("connect-timeout"))
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opts = append(opts, timeoutOpt)
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client, err := containerd.New(cliContext.String("address"), opts...)
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if err != nil {
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return nil, nil, nil, err
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}
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ctx, cancel := AppContext(cliContext)
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var suppressDeprecationWarnings bool
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if s := os.Getenv("CONTAINERD_SUPPRESS_DEPRECATION_WARNINGS"); s != "" {
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suppressDeprecationWarnings, err = strconv.ParseBool(s)
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if err != nil {
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log.L.WithError(err).Warn("Failed to parse CONTAINERD_SUPPRESS_DEPRECATION_WARNINGS=" + s)
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}
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}
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if !suppressDeprecationWarnings {
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resp, err := client.IntrospectionService().Server(ctx)
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if err != nil {
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log.L.WithError(err).Warn("Failed to check deprecations")
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} else {
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for _, d := range resp.Deprecations {
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log.L.Warn("DEPRECATION: " + d.Message)
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}
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}
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}
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return client, ctx, cancel, nil
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}
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