/
service.go
223 lines (182 loc) · 6.17 KB
/
service.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
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
package connector
import (
"context"
"errors"
"fmt"
"log"
"os"
"os/signal"
"syscall"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/borderzero/border0-cli/internal/api"
"github.com/borderzero/border0-cli/internal/api/models"
"github.com/borderzero/border0-cli/internal/connector/config"
"github.com/borderzero/border0-cli/internal/connector/core"
"github.com/borderzero/border0-cli/internal/connector/discover"
"github.com/borderzero/border0-cli/internal/http"
"github.com/golang-jwt/jwt"
"go.uber.org/zap"
"golang.org/x/sync/errgroup"
)
type ConnectorService struct {
cfg config.Config
logger *zap.Logger
version string
}
func NewConnectorService(cfg config.Config, logger *zap.Logger, version string) *ConnectorService {
return &ConnectorService{cfg, logger, version}
}
func (c *ConnectorService) Start() error {
log.Println("starting the connector service")
ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
defer stop()
border0API := api.NewAPI()
creds, err := c.fetchAccessToken(border0API)
if err != nil {
return err
}
//login with accesstoken or username and password
border0API.With(api.WithCredentials(creds))
//setup the version for border0
border0API.With(api.WithVersion(c.version))
border0API.StartRefreshAccessTokenJob(ctx)
var plugins []discover.Discover
if len(c.cfg.AwsGroups) > 0 {
sess, err := session.NewSessionWithOptions(session.Options{
SharedConfigState: session.SharedConfigEnable,
Profile: c.cfg.Connector.AwsProfile,
Config: aws.Config{
Region: &c.cfg.Connector.AwsRegion,
},
})
if err != nil {
c.logger.Error("error creating the aws session", zap.Error(err))
}
if sess != nil {
ec2Discover := discover.NewEC2Discover(ec2.New(sess), c.cfg)
plugins = append(plugins, ec2Discover)
}
}
if len(c.cfg.EcsPlugin) > 0 {
ecsDiscover, err := discover.NewECSDiscover(c.cfg)
if err != nil {
c.logger.Error("error creating the ecs discover", zap.Error(err))
}
plugins = append(plugins, ecsDiscover)
}
if len(c.cfg.DockerPlugin) > 0 {
plugins = append(plugins, &discover.DockerFinder{Logger: c.logger})
}
if len(c.cfg.NetworkPlugin) > 0 {
plugins = append(plugins, &discover.NetworkFinder{})
}
if c.cfg.K8Plugin != nil {
k8Discover := discover.NewK8Discover()
if k8Discover != nil {
plugins = append(plugins, k8Discover)
}
}
// always load the static socket plugin
plugins = append(plugins, &discover.StaticSocketFinder{})
c.StartWithPlugins(ctx, c.cfg, border0API, plugins, c.buildMetadata(creds.AccessToken))
return nil
}
func (c *ConnectorService) buildMetadata(accessToken string) models.Metadata {
meta := models.Metadata{}
token, _, err := new(jwt.Parser).ParseUnverified(accessToken, jwt.MapClaims{})
if err != nil {
c.logger.Warn("could not parse access token in order to build connector metadata")
return meta
}
if token == nil || token.Claims == nil {
c.logger.Warn("nil access token or claims, could not build connector metadata")
return meta
}
claims, ok := token.Claims.(jwt.MapClaims)
if !ok {
c.logger.Warn("token claims could not be decoded to map")
return meta
}
typeClaim, ok := claims["type"].(string)
if !ok {
c.logger.Warn("token claims did not contain \"type\"")
return meta
}
tokenID, ok := claims["user_id"].(string)
if !ok {
c.logger.Warn("token claims did not contain \"user_id\"")
return meta
}
meta.Principal = fmt.Sprintf("%s:%s", typeClaim, tokenID)
meta.ProviderEnv = c.cfg.Connector.GetProviderEnvironment()
meta.ProviderType = c.cfg.Connector.ProviderType
meta.ProviderRegion = c.cfg.Connector.ProviderRegion
return meta
}
func (c *ConnectorService) fetchAccessToken(border0API api.API) (*models.Credentials, error) {
if c.cfg.Credentials.Token != "" {
c.logger.Info("using token defined in config file")
accessToken := c.cfg.Credentials.Token
return models.NewCredentials(accessToken, models.CredentialsTypeToken), nil
} else if c.cfg.Credentials.GetUsername() != "" && c.cfg.Credentials.Password != "" {
c.logger.Info("logging in with username and password")
resp, err := border0API.Login(c.cfg.Credentials.GetUsername(), c.cfg.Credentials.Password)
if err != nil {
return nil, fmt.Errorf("failed to login: %v", err)
}
return models.NewCredentials(resp.Token, models.CredentialsTypeUser), nil
} else {
c.logger.Info("using token defined in border0 file")
accessToken, err := http.GetToken()
if err != nil {
return nil, err
}
return models.NewCredentials(accessToken, models.CredentialsTypeUser), nil
}
}
func (c *ConnectorService) StartWithPlugins(ctx context.Context, cfg config.Config, border0API api.API, plugins []discover.Discover, metadata models.Metadata) error {
ctx, cancel := context.WithCancel(ctx)
defer cancel()
g, groupCtx := errgroup.WithContext(ctx)
for _, discoverPlugin := range plugins {
connectorCore := core.NewConnectorCore(c.logger, c.cfg, discoverPlugin, border0API, metadata, c.version)
socketUpdateCh := make(chan []models.Socket, 1)
c.StartSocketWorker(groupCtx, connectorCore, socketUpdateCh, g)
c.StartDiscovery(groupCtx, connectorCore, socketUpdateCh, g)
connectorCore.TunnelConnectJob(groupCtx, g)
}
if err := g.Wait(); err != nil {
c.logger.Info("Program terminated", zap.Error(err))
}
return nil
}
func (c *ConnectorService) StartSocketWorker(ctx context.Context, connectorCore *core.ConnectorCore, socketUpdateCh chan []models.Socket, group *errgroup.Group) {
group.Go(func() error {
for {
select {
case sockets := <-socketUpdateCh:
c.logger.Info("receiving an update")
connectorCore.HandleUpdates(ctx, sockets)
case <-ctx.Done():
return errors.New("context canceled")
}
time.Sleep(100 * time.Millisecond)
}
})
}
func (c *ConnectorService) StartDiscovery(ctx context.Context, connectorCore *core.ConnectorCore, socketUpdateCh chan []models.Socket, group *errgroup.Group) {
group.Go(func() error {
for {
select {
case <-ctx.Done():
return errors.New("context canceled")
default:
connectorCore.DiscoverNewSocketChanges(ctx, socketUpdateCh)
}
time.Sleep(100 * time.Millisecond)
}
})
}