forked from hyperledger/fabric
-
Notifications
You must be signed in to change notification settings - Fork 0
/
platforms.go
187 lines (153 loc) · 7 KB
/
platforms.go
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
174
175
176
177
178
179
180
181
182
183
184
185
186
187
/*
# Copyright IBM Corp. All Rights Reserved.
#
# SPDX-License-Identifier: Apache-2.0
*/
package platforms
import (
"archive/tar"
"compress/gzip"
"fmt"
"io"
"os"
"strings"
"io/ioutil"
"github.com/hyperledger/fabric/common/flogging"
"github.com/hyperledger/fabric/common/metadata"
"github.com/hyperledger/fabric/core/chaincode/platforms/car"
"github.com/hyperledger/fabric/core/chaincode/platforms/ccmetadata"
"github.com/hyperledger/fabric/core/chaincode/platforms/golang"
"github.com/hyperledger/fabric/core/chaincode/platforms/java"
"github.com/hyperledger/fabric/core/chaincode/platforms/node"
"github.com/hyperledger/fabric/core/config"
cutil "github.com/hyperledger/fabric/core/container/util"
pb "github.com/hyperledger/fabric/protos/peer"
"github.com/spf13/viper"
)
// Interface for validating the specification and and writing the package for
// the given platform
type Platform interface {
ValidateSpec(spec *pb.ChaincodeSpec) error
ValidateDeploymentSpec(spec *pb.ChaincodeDeploymentSpec) error
GetDeploymentPayload(spec *pb.ChaincodeSpec) ([]byte, error)
GenerateDockerfile(spec *pb.ChaincodeDeploymentSpec) (string, error)
GenerateDockerBuild(spec *pb.ChaincodeDeploymentSpec, tw *tar.Writer) error
GetMetadataProvider(spec *pb.ChaincodeDeploymentSpec) ccmetadata.MetadataProvider
}
var logger = flogging.MustGetLogger("chaincode-platform")
// Added for unit testing purposes
var _Find = Find
var _GetPath = config.GetPath
var _VGetBool = viper.GetBool
var _OSStat = os.Stat
var _IOUtilReadFile = ioutil.ReadFile
var _CUtilWriteBytesToPackage = cutil.WriteBytesToPackage
var _generateDockerfile = generateDockerfile
var _generateDockerBuild = generateDockerBuild
// Find returns the platform interface for the given platform type
func Find(chaincodeType pb.ChaincodeSpec_Type) (Platform, error) {
switch chaincodeType {
case pb.ChaincodeSpec_GOLANG:
return &golang.Platform{}, nil
case pb.ChaincodeSpec_CAR:
return &car.Platform{}, nil
case pb.ChaincodeSpec_JAVA:
return &java.Platform{}, nil
case pb.ChaincodeSpec_NODE:
return &node.Platform{}, nil
default:
return nil, fmt.Errorf("Unknown chaincodeType: %s", chaincodeType)
}
}
func GetDeploymentPayload(spec *pb.ChaincodeSpec) ([]byte, error) {
platform, err := _Find(spec.Type)
if err != nil {
return nil, err
}
return platform.GetDeploymentPayload(spec)
}
func generateDockerfile(platform Platform, cds *pb.ChaincodeDeploymentSpec) ([]byte, error) {
var buf []string
// ----------------------------------------------------------------------------------------------------
// Let the platform define the base Dockerfile
// ----------------------------------------------------------------------------------------------------
base, err := platform.GenerateDockerfile(cds)
if err != nil {
return nil, fmt.Errorf("Failed to generate platform-specific Dockerfile: %s", err)
}
buf = append(buf, base)
// ----------------------------------------------------------------------------------------------------
// Add some handy labels
// ----------------------------------------------------------------------------------------------------
buf = append(buf, fmt.Sprintf("LABEL %s.chaincode.id.name=\"%s\" \\", metadata.BaseDockerLabel, cds.ChaincodeSpec.ChaincodeId.Name))
buf = append(buf, fmt.Sprintf(" %s.chaincode.id.version=\"%s\" \\", metadata.BaseDockerLabel, cds.ChaincodeSpec.ChaincodeId.Version))
buf = append(buf, fmt.Sprintf(" %s.chaincode.type=\"%s\" \\", metadata.BaseDockerLabel, cds.ChaincodeSpec.Type.String()))
buf = append(buf, fmt.Sprintf(" %s.version=\"%s\" \\", metadata.BaseDockerLabel, metadata.Version))
buf = append(buf, fmt.Sprintf(" %s.base.version=\"%s\"", metadata.BaseDockerLabel, metadata.BaseVersion))
// ----------------------------------------------------------------------------------------------------
// Then augment it with any general options
// ----------------------------------------------------------------------------------------------------
//append version so chaincode build version can be compared against peer build version
buf = append(buf, fmt.Sprintf("ENV CORE_CHAINCODE_BUILDLEVEL=%s", metadata.Version))
// ----------------------------------------------------------------------------------------------------
// Finalize it
// ----------------------------------------------------------------------------------------------------
contents := strings.Join(buf, "\n")
logger.Debugf("\n%s", contents)
return []byte(contents), nil
}
type InputFiles map[string][]byte
func generateDockerBuild(platform Platform, cds *pb.ChaincodeDeploymentSpec, inputFiles InputFiles, tw *tar.Writer) error {
var err error
// ----------------------------------------------------------------------------------------------------
// First stream out our static inputFiles
// ----------------------------------------------------------------------------------------------------
for name, data := range inputFiles {
err = _CUtilWriteBytesToPackage(name, data, tw)
if err != nil {
return fmt.Errorf("Failed to inject \"%s\": %s", name, err)
}
}
// ----------------------------------------------------------------------------------------------------
// Now give the platform an opportunity to contribute its own context to the build
// ----------------------------------------------------------------------------------------------------
err = platform.GenerateDockerBuild(cds, tw)
if err != nil {
return fmt.Errorf("Failed to generate platform-specific docker build: %s", err)
}
return nil
}
func GenerateDockerBuild(cds *pb.ChaincodeDeploymentSpec) (io.Reader, error) {
inputFiles := make(InputFiles)
// ----------------------------------------------------------------------------------------------------
// Determine our platform driver from the spec
// ----------------------------------------------------------------------------------------------------
platform, err := _Find(cds.ChaincodeSpec.Type)
if err != nil {
return nil, fmt.Errorf("Failed to determine platform type: %s", err)
}
// ----------------------------------------------------------------------------------------------------
// Generate the Dockerfile specific to our context
// ----------------------------------------------------------------------------------------------------
dockerFile, err := _generateDockerfile(platform, cds)
if err != nil {
return nil, fmt.Errorf("Failed to generate a Dockerfile: %s", err)
}
inputFiles["Dockerfile"] = dockerFile
// ----------------------------------------------------------------------------------------------------
// Finally, launch an asynchronous process to stream all of the above into a docker build context
// ----------------------------------------------------------------------------------------------------
input, output := io.Pipe()
go func() {
gw := gzip.NewWriter(output)
tw := tar.NewWriter(gw)
err := _generateDockerBuild(platform, cds, inputFiles, tw)
if err != nil {
logger.Error(err)
}
tw.Close()
gw.Close()
output.CloseWithError(err)
}()
return input, nil
}