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40 lines
1.1 KiB
Go
40 lines
1.1 KiB
Go
//go:build linux
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// +build linux
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package cridockerd
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import (
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"context"
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"strings"
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"github.com/docker/docker/client"
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"github.com/k3s-io/k3s/pkg/daemons/config"
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"github.com/pkg/errors"
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)
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const socketPrefix = "unix://"
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func setupDockerCRIConfig(ctx context.Context, cfg *config.Node) error {
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clientOpts := []client.Opt{client.FromEnv, client.WithAPIVersionNegotiation()}
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if cfg.ContainerRuntimeEndpoint != "" {
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host := cfg.ContainerRuntimeEndpoint
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if !strings.HasPrefix(host, socketPrefix) {
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host = socketPrefix + host
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}
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clientOpts = append(clientOpts, client.WithHost(host))
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}
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c, err := client.NewClientWithOpts(clientOpts...)
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if err != nil {
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return errors.Wrap(err, "failed to create docker client")
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}
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i, err := c.Info(ctx)
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if err != nil {
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return errors.Wrap(err, "failed to get docker runtime info")
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}
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// note: this mutatation of the passed agent.Config is later used to set the
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// kubelet's cgroup-driver flag. This may merit moving to somewhere else in order
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// to avoid mutating the configuration while setting up the docker CRI.
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cfg.AgentConfig.Systemd = i.CgroupDriver == "systemd"
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return nil
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}
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