package client // import "github.com/docker/docker/client"

 
 import (

 	"context"

 	"encoding/json"
 
 	"github.com/docker/docker/api/types"
 )
 
 // ContainerExecCreate creates a new exec configuration to run an exec process.

 func (cli *Client) ContainerExecCreate(ctx context.Context, container string, config types.ExecConfig) (types.IDResponse, error) {
 	var response types.IDResponse

 
 	if err := cli.NewVersionError("1.25", "env"); len(config.Env) != 0 && err != nil {
 		return response, err
 	}
 

 	resp, err := cli.post(ctx, "/containers/"+container+"/exec", nil, config, nil)

 	defer ensureReaderClosed(resp)

 	if err != nil {
 		return response, err
 	}
 	err = json.NewDecoder(resp.body).Decode(&response)
 	return response, err
 }
 
 // ContainerExecStart starts an exec process already created in the docker host.
 func (cli *Client) ContainerExecStart(ctx context.Context, execID string, config types.ExecStartCheck) error {
 	resp, err := cli.post(ctx, "/exec/"+execID+"/start", nil, config, nil)
 	ensureReaderClosed(resp)
 	return err
 }
 
 // ContainerExecAttach attaches a connection to an exec process in the server.
 // It returns a types.HijackedConnection with the hijacked connection
 // and the a reader to get output. It's up to the called to close
 // the hijacked connection by calling types.HijackedResponse.Close.

 func (cli *Client) ContainerExecAttach(ctx context.Context, execID string, config types.ExecStartCheck) (types.HijackedResponse, error) {

 	headers := map[string][]string{"Content-Type": {"application/json"}}
 	return cli.postHijacked(ctx, "/exec/"+execID+"/start", nil, config, headers)
 }
 
 // ContainerExecInspect returns information about a specific exec process on the docker host.
 func (cli *Client) ContainerExecInspect(ctx context.Context, execID string) (types.ContainerExecInspect, error) {
 	var response types.ContainerExecInspect
 	resp, err := cli.get(ctx, "/exec/"+execID+"/json", nil, nil)
 	if err != nil {
 		return response, err
 	}
 
 	err = json.NewDecoder(resp.body).Decode(&response)
 	ensureReaderClosed(resp)
 	return response, err
 }