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

@@ -0,0 +1,156 @@
+// Copyright 2016 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"
+	"net/http"
+	"net/url"
+	"strconv"
+
+	"github.com/docker/docker/api/types/swarm"
+)
+
+var (
+	// ErrNodeAlreadyInSwarm is the error returned by InitSwarm and JoinSwarm
+	// when the node is already part of a Swarm.
+	ErrNodeAlreadyInSwarm = errors.New("node already in a Swarm")
+
+	// ErrNodeNotInSwarm is the error returned by LeaveSwarm and UpdateSwarm
+	// when the node is not part of a Swarm.
+	ErrNodeNotInSwarm = errors.New("node is not in a Swarm")
+)
+
+// InitSwarmOptions specify parameters to the InitSwarm function.
+// See https://goo.gl/hzkgWu for more details.
+type InitSwarmOptions struct {
+	swarm.InitRequest
+	Context context.Context
+}
+
+// InitSwarm initializes a new Swarm and returns the node ID.
+// See https://goo.gl/ZWyG1M for more details.
+func (c *Client) InitSwarm(opts InitSwarmOptions) (string, error) {
+	path := "/swarm/init"
+	resp, err := c.do("POST", path, doOptions{
+		data:      opts.InitRequest,
+		forceJSON: true,
+		context:   opts.Context,
+	})
+	if err != nil {
+		if e, ok := err.(*Error); ok && (e.Status == http.StatusNotAcceptable || e.Status == http.StatusServiceUnavailable) {
+			return "", ErrNodeAlreadyInSwarm
+		}
+		return "", err
+	}
+	defer resp.Body.Close()
+	var response string
+	if err := json.NewDecoder(resp.Body).Decode(&response); err != nil {
+		return "", err
+	}
+	return response, nil
+}
+
+// JoinSwarmOptions specify parameters to the JoinSwarm function.
+// See https://goo.gl/TdhJWU for more details.
+type JoinSwarmOptions struct {
+	swarm.JoinRequest
+	Context context.Context
+}
+
+// JoinSwarm joins an existing Swarm.
+// See https://goo.gl/N59IP1 for more details.
+func (c *Client) JoinSwarm(opts JoinSwarmOptions) error {
+	path := "/swarm/join"
+	resp, err := c.do("POST", path, doOptions{
+		data:      opts.JoinRequest,
+		forceJSON: true,
+		context:   opts.Context,
+	})
+	if err != nil {
+		if e, ok := err.(*Error); ok && (e.Status == http.StatusNotAcceptable || e.Status == http.StatusServiceUnavailable) {
+			return ErrNodeAlreadyInSwarm
+		}
+	}
+	resp.Body.Close()
+	return err
+}
+
+// LeaveSwarmOptions specify parameters to the LeaveSwarm function.
+// See https://goo.gl/UWDlLg for more details.
+type LeaveSwarmOptions struct {
+	Force   bool
+	Context context.Context
+}
+
+// LeaveSwarm leaves a Swarm.
+// See https://goo.gl/FTX1aD for more details.
+func (c *Client) LeaveSwarm(opts LeaveSwarmOptions) error {
+	params := make(url.Values)
+	params.Set("force", strconv.FormatBool(opts.Force))
+	path := "/swarm/leave?" + params.Encode()
+	resp, err := c.do("POST", path, doOptions{
+		context: opts.Context,
+	})
+	if err != nil {
+		if e, ok := err.(*Error); ok && (e.Status == http.StatusNotAcceptable || e.Status == http.StatusServiceUnavailable) {
+			return ErrNodeNotInSwarm
+		}
+	}
+	resp.Body.Close()
+	return err
+}
+
+// UpdateSwarmOptions specify parameters to the UpdateSwarm function.
+// See https://goo.gl/vFbq36 for more details.
+type UpdateSwarmOptions struct {
+	Version            int
+	RotateWorkerToken  bool
+	RotateManagerToken bool
+	Swarm              swarm.Spec
+	Context            context.Context
+}
+
+// UpdateSwarm updates a Swarm.
+// See https://goo.gl/iJFnsw for more details.
+func (c *Client) UpdateSwarm(opts UpdateSwarmOptions) error {
+	params := make(url.Values)
+	params.Set("version", strconv.Itoa(opts.Version))
+	params.Set("rotateWorkerToken", strconv.FormatBool(opts.RotateWorkerToken))
+	params.Set("rotateManagerToken", strconv.FormatBool(opts.RotateManagerToken))
+	path := "/swarm/update?" + params.Encode()
+	resp, err := c.do("POST", path, doOptions{
+		data:      opts.Swarm,
+		forceJSON: true,
+		context:   opts.Context,
+	})
+	if err != nil {
+		if e, ok := err.(*Error); ok && (e.Status == http.StatusNotAcceptable || e.Status == http.StatusServiceUnavailable) {
+			return ErrNodeNotInSwarm
+		}
+	}
+	resp.Body.Close()
+	return err
+}
+
+// InspectSwarm inspects a Swarm.
+// See https://goo.gl/MFwgX9 for more details.
+func (c *Client) InspectSwarm(ctx context.Context) (swarm.Swarm, error) {
+	response := swarm.Swarm{}
+	resp, err := c.do("GET", "/swarm", doOptions{
+		context: ctx,
+	})
+	if err != nil {
+		if e, ok := err.(*Error); ok && (e.Status == http.StatusNotAcceptable || e.Status == http.StatusServiceUnavailable) {
+			return response, ErrNodeNotInSwarm
+		}
+		return response, err
+	}
+	defer resp.Body.Close()
+	err = json.NewDecoder(resp.Body).Decode(&response)
+	return response, err
+}