9f5182f394
This allows other packages and plugins to easily exec things without racing with the reaper. The reaper is mostly needed in the shim but can be removed in containerd in favor of the `exec.Cmd` apis Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
94 lines
2.4 KiB
Go
94 lines
2.4 KiB
Go
package server
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import (
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"bytes"
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"io"
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"github.com/BurntSushi/toml"
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"github.com/containerd/containerd/errdefs"
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"github.com/pkg/errors"
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)
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// Config provides containerd configuration data for the server
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type Config struct {
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// Root is the path to a directory where containerd will store persistent data
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Root string `toml:"root"`
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// State is the path to a directory where containerd will store transient data
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State string `toml:"state"`
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// GRPC configuration settings
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GRPC GRPCConfig `toml:"grpc"`
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// Debug and profiling settings
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Debug Debug `toml:"debug"`
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// Metrics and monitoring settings
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Metrics MetricsConfig `toml:"metrics"`
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// Plugins provides plugin specific configuration for the initialization of a plugin
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Plugins map[string]toml.Primitive `toml:"plugins"`
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// OOMScore adjust the containerd's oom score
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OOMScore int `toml:"oom_score"`
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// Cgroup specifies cgroup information for the containerd daemon process
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Cgroup CgroupConfig `toml:"cgroup"`
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md toml.MetaData
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}
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// GRPCConfig provides GRPC configuration for the socket
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type GRPCConfig struct {
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Address string `toml:"address"`
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UID int `toml:"uid"`
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GID int `toml:"gid"`
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}
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// Debug provides debug configuration
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type Debug struct {
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Address string `toml:"address"`
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UID int `toml:"uid"`
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GID int `toml:"gid"`
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Level string `toml:"level"`
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}
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// MetricsConfig provides metrics configuration
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type MetricsConfig struct {
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Address string `toml:"address"`
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GRPCHistogram bool `toml:"grpc_histogram"`
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}
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// CgroupConfig provides cgroup configuration
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type CgroupConfig struct {
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Path string `toml:"path"`
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}
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// Decode unmarshals a plugin specific configuration by plugin id
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func (c *Config) Decode(id string, v interface{}) (interface{}, error) {
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data, ok := c.Plugins[id]
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if !ok {
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return v, nil
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}
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if err := c.md.PrimitiveDecode(data, v); err != nil {
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return nil, err
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}
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return v, nil
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}
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// WriteTo marshals the config to the provided writer
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func (c *Config) WriteTo(w io.Writer) (int64, error) {
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buf := bytes.NewBuffer(nil)
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e := toml.NewEncoder(buf)
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if err := e.Encode(c); err != nil {
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return 0, err
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}
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return io.Copy(w, buf)
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}
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// LoadConfig loads the containerd server config from the provided path
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func LoadConfig(path string, v *Config) error {
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if v == nil {
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return errors.Wrapf(errdefs.ErrInvalidArgument, "argument v must not be nil")
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}
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md, err := toml.DecodeFile(path, v)
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if err != nil {
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return err
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}
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v.md = md
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return nil
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}
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