Use buildah commit and bud in podman

Vendor in buildah and use as much of commit and bug as possible for podman
build and commit.

Resolves #586
Signed-off-by: baude <bbaude@redhat.com>

Closes: #681
Approved by: mheon

vendor/github.com/fsouza/go-dockerclient/exec.go

@@ -0,0 +1,213 @@
+// Copyright 2014 go-dockerclient authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package docker
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strconv"
+)
+
+// Exec is the type representing a `docker exec` instance and containing the
+// instance ID
+type Exec struct {
+	ID string `json:"Id,omitempty" yaml:"Id,omitempty"`
+}
+
+// CreateExecOptions specify parameters to the CreateExecContainer function.
+//
+// See https://goo.gl/60TeBP for more details
+type CreateExecOptions struct {
+	AttachStdin  bool            `json:"AttachStdin,omitempty" yaml:"AttachStdin,omitempty" toml:"AttachStdin,omitempty"`
+	AttachStdout bool            `json:"AttachStdout,omitempty" yaml:"AttachStdout,omitempty" toml:"AttachStdout,omitempty"`
+	AttachStderr bool            `json:"AttachStderr,omitempty" yaml:"AttachStderr,omitempty" toml:"AttachStderr,omitempty"`
+	Tty          bool            `json:"Tty,omitempty" yaml:"Tty,omitempty" toml:"Tty,omitempty"`
+	Env          []string        `json:"Env,omitempty" yaml:"Env,omitempty" toml:"Env,omitempty"`
+	Cmd          []string        `json:"Cmd,omitempty" yaml:"Cmd,omitempty" toml:"Cmd,omitempty"`
+	Container    string          `json:"Container,omitempty" yaml:"Container,omitempty" toml:"Container,omitempty"`
+	User         string          `json:"User,omitempty" yaml:"User,omitempty" toml:"User,omitempty"`
+	Context      context.Context `json:"-"`
+	Privileged   bool            `json:"Privileged,omitempty" yaml:"Privileged,omitempty" toml:"Privileged,omitempty"`
+}
+
+// CreateExec sets up an exec instance in a running container `id`, returning the exec
+// instance, or an error in case of failure.
+//
+// See https://goo.gl/60TeBP for more details
+func (c *Client) CreateExec(opts CreateExecOptions) (*Exec, error) {
+	if len(opts.Env) > 0 && c.serverAPIVersion.LessThan(apiVersion125) {
+		return nil, errors.New("exec configuration Env is only supported in API#1.25 and above")
+	}
+	path := fmt.Sprintf("/containers/%s/exec", opts.Container)
+	resp, err := c.do("POST", path, doOptions{data: opts, context: opts.Context})
+	if err != nil {
+		if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound {
+			return nil, &NoSuchContainer{ID: opts.Container}
+		}
+		return nil, err
+	}
+	defer resp.Body.Close()
+	var exec Exec
+	if err := json.NewDecoder(resp.Body).Decode(&exec); err != nil {
+		return nil, err
+	}
+
+	return &exec, nil
+}
+
+// StartExecOptions specify parameters to the StartExecContainer function.
+//
+// See https://goo.gl/1EeDWi for more details
+type StartExecOptions struct {
+	InputStream  io.Reader `qs:"-"`
+	OutputStream io.Writer `qs:"-"`
+	ErrorStream  io.Writer `qs:"-"`
+
+	Detach bool `json:"Detach,omitempty" yaml:"Detach,omitempty" toml:"Detach,omitempty"`
+	Tty    bool `json:"Tty,omitempty" yaml:"Tty,omitempty" toml:"Tty,omitempty"`
+
+	// Use raw terminal? Usually true when the container contains a TTY.
+	RawTerminal bool `qs:"-"`
+
+	// If set, after a successful connect, a sentinel will be sent and then the
+	// client will block on receive before continuing.
+	//
+	// It must be an unbuffered channel. Using a buffered channel can lead
+	// to unexpected behavior.
+	Success chan struct{} `json:"-"`
+
+	Context context.Context `json:"-"`
+}
+
+// StartExec starts a previously set up exec instance id. If opts.Detach is
+// true, it returns after starting the exec command. Otherwise, it sets up an
+// interactive session with the exec command.
+//
+// See https://goo.gl/1EeDWi for more details
+func (c *Client) StartExec(id string, opts StartExecOptions) error {
+	cw, err := c.StartExecNonBlocking(id, opts)
+	if err != nil {
+		return err
+	}
+	if cw != nil {
+		return cw.Wait()
+	}
+	return nil
+}
+
+// StartExecNonBlocking starts a previously set up exec instance id. If opts.Detach is
+// true, it returns after starting the exec command. Otherwise, it sets up an
+// interactive session with the exec command.
+//
+// See https://goo.gl/1EeDWi for more details
+func (c *Client) StartExecNonBlocking(id string, opts StartExecOptions) (CloseWaiter, error) {
+	if id == "" {
+		return nil, &NoSuchExec{ID: id}
+	}
+
+	path := fmt.Sprintf("/exec/%s/start", id)
+
+	if opts.Detach {
+		resp, err := c.do("POST", path, doOptions{data: opts, context: opts.Context})
+		if err != nil {
+			if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound {
+				return nil, &NoSuchExec{ID: id}
+			}
+			return nil, err
+		}
+		defer resp.Body.Close()
+		return nil, nil
+	}
+
+	return c.hijack("POST", path, hijackOptions{
+		success:        opts.Success,
+		setRawTerminal: opts.RawTerminal,
+		in:             opts.InputStream,
+		stdout:         opts.OutputStream,
+		stderr:         opts.ErrorStream,
+		data:           opts,
+	})
+}
+
+// ResizeExecTTY resizes the tty session used by the exec command id. This API
+// is valid only if Tty was specified as part of creating and starting the exec
+// command.
+//
+// See https://goo.gl/Mo5bxx for more details
+func (c *Client) ResizeExecTTY(id string, height, width int) error {
+	params := make(url.Values)
+	params.Set("h", strconv.Itoa(height))
+	params.Set("w", strconv.Itoa(width))
+
+	path := fmt.Sprintf("/exec/%s/resize?%s", id, params.Encode())
+	resp, err := c.do("POST", path, doOptions{})
+	if err != nil {
+		return err
+	}
+	resp.Body.Close()
+	return nil
+}
+
+// ExecProcessConfig is a type describing the command associated to a Exec
+// instance. It's used in the ExecInspect type.
+type ExecProcessConfig struct {
+	User       string   `json:"user,omitempty" yaml:"user,omitempty" toml:"user,omitempty"`
+	Privileged bool     `json:"privileged,omitempty" yaml:"privileged,omitempty" toml:"privileged,omitempty"`
+	Tty        bool     `json:"tty,omitempty" yaml:"tty,omitempty" toml:"tty,omitempty"`
+	EntryPoint string   `json:"entrypoint,omitempty" yaml:"entrypoint,omitempty" toml:"entrypoint,omitempty"`
+	Arguments  []string `json:"arguments,omitempty" yaml:"arguments,omitempty" toml:"arguments,omitempty"`
+}
+
+// ExecInspect is a type with details about a exec instance, including the
+// exit code if the command has finished running. It's returned by a api
+// call to /exec/(id)/json
+//
+// See https://goo.gl/ctMUiW for more details
+type ExecInspect struct {
+	ID            string            `json:"ID,omitempty" yaml:"ID,omitempty" toml:"ID,omitempty"`
+	ExitCode      int               `json:"ExitCode,omitempty" yaml:"ExitCode,omitempty" toml:"ExitCode,omitempty"`
+	Running       bool              `json:"Running,omitempty" yaml:"Running,omitempty" toml:"Running,omitempty"`
+	OpenStdin     bool              `json:"OpenStdin,omitempty" yaml:"OpenStdin,omitempty" toml:"OpenStdin,omitempty"`
+	OpenStderr    bool              `json:"OpenStderr,omitempty" yaml:"OpenStderr,omitempty" toml:"OpenStderr,omitempty"`
+	OpenStdout    bool              `json:"OpenStdout,omitempty" yaml:"OpenStdout,omitempty" toml:"OpenStdout,omitempty"`
+	ProcessConfig ExecProcessConfig `json:"ProcessConfig,omitempty" yaml:"ProcessConfig,omitempty" toml:"ProcessConfig,omitempty"`
+	ContainerID   string            `json:"ContainerID,omitempty" yaml:"ContainerID,omitempty" toml:"ContainerID,omitempty"`
+	DetachKeys    string            `json:"DetachKeys,omitempty" yaml:"DetachKeys,omitempty" toml:"DetachKeys,omitempty"`
+	CanRemove     bool              `json:"CanRemove,omitempty" yaml:"CanRemove,omitempty" toml:"CanRemove,omitempty"`
+}
+
+// InspectExec returns low-level information about the exec command id.
+//
+// See https://goo.gl/ctMUiW for more details
+func (c *Client) InspectExec(id string) (*ExecInspect, error) {
+	path := fmt.Sprintf("/exec/%s/json", id)
+	resp, err := c.do("GET", path, doOptions{})
+	if err != nil {
+		if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound {
+			return nil, &NoSuchExec{ID: id}
+		}
+		return nil, err
+	}
+	defer resp.Body.Close()
+	var exec ExecInspect
+	if err := json.NewDecoder(resp.Body).Decode(&exec); err != nil {
+		return nil, err
+	}
+	return &exec, nil
+}
+
+// NoSuchExec is the error returned when a given exec instance does not exist.
+type NoSuchExec struct {
+	ID string
+}
+
+func (err *NoSuchExec) Error() string {
+	return "No such exec instance: " + err.ID
+}