docker/runconfig/config.go

62 строки
2.9 KiB
Go

package runconfig
import (
"encoding/json"
"io"
"github.com/docker/docker/pkg/nat"
"github.com/docker/docker/pkg/stringutils"
)
// Config contains the configuration data about a container.
// It should hold only portable information about the container.
// Here, "portable" means "independent from the host we are running on".
// Non-portable information *should* appear in HostConfig.
type Config struct {
Hostname string // Hostname
Domainname string // Domainname
User string // User that will run the command(s) inside the container
AttachStdin bool // Attach the standard input, makes possible user interaction
AttachStdout bool // Attach the standard output
AttachStderr bool // Attach the standard error
ExposedPorts map[nat.Port]struct{} // List of exposed ports
PublishService string // Name of the network service exposed by the container
Tty bool // Attach standard streams to a tty, including stdin if it is not closed.
OpenStdin bool // Open stdin
StdinOnce bool // If true, close stdin after the 1 attached client disconnects.
Env []string // List of environment variable to set in the container
Cmd *stringutils.StrSlice // Command to run when starting the container
Image string // Name of the image as it was passed by the operator (eg. could be symbolic)
Volumes map[string]struct{} // List of volumes (mounts) used for the container
VolumeDriver string // Name of the volume driver used to mount volumes
WorkingDir string // Current directory (PWD) in the command will be launched
Entrypoint *stringutils.StrSlice // Entrypoint to run when starting the container
NetworkDisabled bool // Is network disabled
MacAddress string // Mac Address of the container
OnBuild []string // ONBUILD metadata that were defined on the image Dockerfile
Labels map[string]string // List of labels set to this container
}
// DecodeContainerConfig decodes a json encoded config into a ContainerConfigWrapper
// struct and returns both a Config and an HostConfig struct
// Be aware this function is not checking whether the resulted structs are nil,
// it's your business to do so
func DecodeContainerConfig(src io.Reader) (*Config, *HostConfig, error) {
decoder := json.NewDecoder(src)
var w ContainerConfigWrapper
if err := decoder.Decode(&w); err != nil {
return nil, nil, err
}
hc := w.getHostConfig()
// Certain parameters need daemon-side validation that cannot be done
// on the client, as only the daemon knows what is valid for the platform.
if err := ValidateNetMode(w.Config, hc); err != nil {
return nil, nil, err
}
return w.Config, hc, nil
}