github.com/olljanat/moby@v1.13.1/client/ping.go (about)

     1  package client
     2  
     3  import (
     4  	"fmt"
     5  
     6  	"github.com/docker/docker/api/types"
     7  	"golang.org/x/net/context"
     8  )
     9  
    10  // Ping pings the server and return the value of the "Docker-Experimental" & "API-Version" headers
    11  func (cli *Client) Ping(ctx context.Context) (types.Ping, error) {
    12  	var ping types.Ping
    13  	req, err := cli.buildRequest("GET", fmt.Sprintf("%s/_ping", cli.basePath), nil, nil)
    14  	if err != nil {
    15  		return ping, err
    16  	}
    17  	serverResp, err := cli.doRequest(ctx, req)
    18  	if err != nil {
    19  		return ping, err
    20  	}
    21  	defer ensureReaderClosed(serverResp)
    22  
    23  	ping.APIVersion = serverResp.header.Get("API-Version")
    24  
    25  	if serverResp.header.Get("Docker-Experimental") == "true" {
    26  		ping.Experimental = true
    27  	}
    28  
    29  	return ping, nil
    30  }