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
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
package plugin
import (
"net/rpc"
"github.com/hashicorp/go-plugin"
"github.com/hashicorp/terraform/terraform"
)
// ResourceProvisionerPlugin is the plugin.Plugin implementation.
type ResourceProvisionerPlugin struct {
F func() terraform.ResourceProvisioner
}
func (p *ResourceProvisionerPlugin) Server(b *plugin.MuxBroker) (interface{}, error) {
return &ResourceProvisionerServer{Broker: b, Provisioner: p.F()}, nil
}
func (p *ResourceProvisionerPlugin) Client(
b *plugin.MuxBroker, c *rpc.Client) (interface{}, error) {
return &ResourceProvisioner{Broker: b, Client: c}, nil
}
// ResourceProvisioner is an implementation of terraform.ResourceProvisioner
// that communicates over RPC.
type ResourceProvisioner struct {
Broker *plugin.MuxBroker
Client *rpc.Client
}
func (p *ResourceProvisioner) Validate(c *terraform.ResourceConfig) ([]string, []error) {
var resp ResourceProvisionerValidateResponse
args := ResourceProvisionerValidateArgs{
Config: c,
}
err := p.Client.Call("Plugin.Validate", &args, &resp)
if err != nil {
return nil, []error{err}
}
var errs []error
if len(resp.Errors) > 0 {
errs = make([]error, len(resp.Errors))
for i, err := range resp.Errors {
errs[i] = err
}
}
return resp.Warnings, errs
}
func (p *ResourceProvisioner) Apply(
output terraform.UIOutput,
s *terraform.InstanceState,
c *terraform.ResourceConfig) error {
id := p.Broker.NextId()
go p.Broker.AcceptAndServe(id, &UIOutputServer{
UIOutput: output,
})
var resp ResourceProvisionerApplyResponse
args := &ResourceProvisionerApplyArgs{
OutputId: id,
State: s,
Config: c,
}
err := p.Client.Call("Plugin.Apply", args, &resp)
if err != nil {
return err
}
if resp.Error != nil {
err = resp.Error
}
return err
}
func (p *ResourceProvisioner) Stop() error {
var resp ResourceProvisionerStopResponse
err := p.Client.Call("Plugin.Stop", new(interface{}), &resp)
if err != nil {
return err
}
if resp.Error != nil {
err = resp.Error
}
return err
}
func (p *ResourceProvisioner) Close() error {
return p.Client.Close()
}
type ResourceProvisionerValidateArgs struct {
Config *terraform.ResourceConfig
}
type ResourceProvisionerValidateResponse struct {
Warnings []string
Errors []*plugin.BasicError
}
type ResourceProvisionerApplyArgs struct {
OutputId uint32
State *terraform.InstanceState
Config *terraform.ResourceConfig
}
type ResourceProvisionerApplyResponse struct {
Error *plugin.BasicError
}
type ResourceProvisionerStopResponse struct {
Error *plugin.BasicError
}
// ResourceProvisionerServer is a net/rpc compatible structure for serving
// a ResourceProvisioner. This should not be used directly.
type ResourceProvisionerServer struct {
Broker *plugin.MuxBroker
Provisioner terraform.ResourceProvisioner
}
func (s *ResourceProvisionerServer) Apply(
args *ResourceProvisionerApplyArgs,
result *ResourceProvisionerApplyResponse) error {
conn, err := s.Broker.Dial(args.OutputId)
if err != nil {
*result = ResourceProvisionerApplyResponse{
Error: plugin.NewBasicError(err),
}
return nil
}
client := rpc.NewClient(conn)
defer client.Close()
output := &UIOutput{Client: client}
err = s.Provisioner.Apply(output, args.State, args.Config)
*result = ResourceProvisionerApplyResponse{
Error: plugin.NewBasicError(err),
}
return nil
}
func (s *ResourceProvisionerServer) Validate(
args *ResourceProvisionerValidateArgs,
reply *ResourceProvisionerValidateResponse) error {
warns, errs := s.Provisioner.Validate(args.Config)
berrs := make([]*plugin.BasicError, len(errs))
for i, err := range errs {
berrs[i] = plugin.NewBasicError(err)
}
*reply = ResourceProvisionerValidateResponse{
Warnings: warns,
Errors: berrs,
}
return nil
}
func (s *ResourceProvisionerServer) Stop(
_ interface{},
reply *ResourceProvisionerStopResponse) error {
err := s.Provisioner.Stop()
*reply = ResourceProvisionerStopResponse{
Error: plugin.NewBasicError(err),
}
return nil
}
|