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Merge pull request #15370 from cpuguy83/better_error_on_client_connect

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Better/more specific error messages on connect
This commit is contained in:
David Calavera
2015-08-07 13:00:44 -07:00
parent 0a0e9701f7 9994a35b5d
commit 0262d40ba7
3 changed files with 31 additions and 8 deletions
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api/client/utils.go
+8 -7
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@@ -30,7 +30,7 @@ import (
)
var (
errConnectionRefused = errors.New("Cannot connect to the Docker daemon. Is 'docker -d' running on this host?")
errConnectionFailed = errors.New("Cannot connect to the Docker daemon. Is the docker daemon running on this host?")
)
type serverResponse struct {
@@ -94,13 +94,14 @@ func (cli *DockerCli) clientRequest(method, path string, in io.Reader, headers m
if resp != nil {
serverResp.statusCode = resp.StatusCode
}
if err != nil {
if strings.Contains(err.Error(), "connection refused") {
return serverResp, errConnectionRefused
if types.IsTimeout(err) || strings.Contains(err.Error(), "connection refused") || strings.Contains(err.Error(), "dial unix") {
return serverResp, errConnectionFailed
}
if cli.tlsConfig == nil {
return serverResp, fmt.Errorf("%v.\n* Are you trying to connect to a TLS-enabled daemon without TLS?\n* Is your docker daemon up and running?", err)
if cli.tlsConfig == nil && strings.Contains(err.Error(), "malformed HTTP response") {
return serverResp, fmt.Errorf("%v.\n* Are you trying to connect to a TLS-enabled daemon without TLS?", err)
}
if cli.tlsConfig != nil && strings.Contains(err.Error(), "remote error: bad certificate") {
return serverResp, fmt.Errorf("The server probably has client authentication (--tlsverify) enabled. Please check your TLS client certification settings: %v", err)
@@ -280,7 +281,7 @@ func getExitCode(cli *DockerCli, containerID string) (bool, int, error) {
serverResp, err := cli.call("GET", "/containers/"+containerID+"/json", nil, nil)
if err != nil {
// If we can't connect, then the daemon probably died.
if err != errConnectionRefused {
if err != errConnectionFailed {
return false, -1, err
}
return false, -1, nil
@@ -302,7 +303,7 @@ func getExecExitCode(cli *DockerCli, execID string) (bool, int, error) {
serverResp, err := cli.call("GET", "/exec/"+execID+"/json", nil, nil)
if err != nil {
// If we can't connect, then the daemon probably died.
if err != errConnectionRefused {
if err != errConnectionFailed {
return false, -1, err
}
return false, -1, nil