1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
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
}
|
