-
Notifications
You must be signed in to change notification settings - Fork 5
/
serve-config.go
165 lines (141 loc) · 4.71 KB
/
serve-config.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
package cmd
import (
"context"
"fmt"
"net/http"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/session"
webserver "github.com/chanzuckerberg/aws-oidc/pkg/aws_config_server"
CZIOkta "github.com/chanzuckerberg/aws-oidc/pkg/okta"
"github.com/chanzuckerberg/go-misc/sets"
"github.com/coreos/go-oidc"
"github.com/honeycombio/beeline-go"
"github.com/kelseyhightower/envconfig"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
var webServerPort int
type OktaWebserverEnvironment struct {
PRIVATE_KEY string `required:"true"`
SERVICE_CLIENT_ID string `required:"true"`
CLIENT_ID string `required:"true"`
ISSUER_URL string `required:"true"`
}
type AWSRoleEnvironment struct {
READER_ROLE_NAME string `required:"true"`
ORG_ROLE_ARNS []string `required:"true"`
}
var concurrency int
var awsSessionRetries int
var skipAccountList []string
func init() {
rootCmd.AddCommand(serveConfigCmd)
serveConfigCmd.Flags().IntVar(&webServerPort, "web-server-port", 8080, "Port to host the aws config website")
serveConfigCmd.Flags().IntVar(&concurrency, "concurrency", 1, "Number of parallel goroutines for account processing")
serveConfigCmd.Flags().IntVar(&awsSessionRetries, "aws-retries", 5, "Number of times an AWS svc retries an operation")
serveConfigCmd.Flags().StringSliceVar(&skipAccountList, "skip-accts", []string{}, "List of AWS account IDs serve-config should ignore.")
}
var serveConfigCmd = &cobra.Command{
Use: "serve-config",
Short: "aws-oidc serve-config",
Long: "Start a go webserver for returning client's aws config",
SilenceErrors: true,
RunE: serveConfigRun,
}
func loadOktaEnv() (*OktaWebserverEnvironment, error) {
env := &OktaWebserverEnvironment{}
err := envconfig.Process("OKTA", env)
if err != nil {
return env, errors.Wrap(err, "Unable to load all the okta environment variables")
}
return env, nil
}
func loadAWSEnv() (*AWSRoleEnvironment, error) {
env := &AWSRoleEnvironment{}
err := envconfig.Process("AWS", env)
if err != nil {
return env, errors.Wrap(err, "Unable to load all the aws environment variables")
}
return env, nil
}
func createOktaClientApps(ctx context.Context, orgURL, privateKey, oktaClientID string) (CZIOkta.AppResource, error) {
oktaConfig := &CZIOkta.OktaClientConfig{
ClientID: oktaClientID,
PrivateKeyPEM: privateKey,
OrgURL: orgURL,
}
client, err := CZIOkta.NewOktaClient(ctx, oktaConfig)
if err != nil {
return nil, errors.Wrap(err, "Unable to create Okta Client")
}
return client.Application, nil
}
func serveConfigRun(cmd *cobra.Command, args []string) error {
ctx, span := beeline.StartSpan(cmd.Context(), "serve-config run")
defer span.Send()
if concurrency == 0 {
return errors.New("concurrency Limit cannot be 0")
}
// Initialize everything else
oktaEnv, err := loadOktaEnv()
if err != nil {
return err
}
awsEnv, err := loadAWSEnv()
if err != nil {
return err
}
provider, err := oidc.NewProvider(ctx, oktaEnv.ISSUER_URL)
if err != nil {
return errors.Wrap(err, "Unable to create OIDC provider")
}
verifier := provider.Verifier(&oidc.Config{ClientID: oktaEnv.CLIENT_ID})
awsSession, err := session.NewSessionWithOptions(
session.Options{
SharedConfigState: session.SharedConfigEnable,
Config: aws.Config{
Retryer: &client.DefaultRetryer{
NumMaxRetries: awsSessionRetries,
MinRetryDelay: time.Millisecond,
MinThrottleDelay: time.Millisecond,
MaxThrottleDelay: 10 * time.Second,
MaxRetryDelay: 10 * time.Second,
},
},
},
)
if err != nil {
return errors.Wrap(err, "failed to create aws session")
}
oktaAppClient, err := createOktaClientApps(ctx, oktaEnv.ISSUER_URL, oktaEnv.PRIVATE_KEY, oktaEnv.SERVICE_CLIENT_ID)
if err != nil {
return errors.Wrap(err, "failed to create okta apps")
}
configGenerationParams := webserver.AWSConfigGenerationParams{
OIDCProvider: oktaEnv.ISSUER_URL,
AWSWorkerRole: awsEnv.READER_ROLE_NAME,
AWSOrgRoles: awsEnv.ORG_ROLE_ARNS,
Concurrency: concurrency,
SkipAccounts: sets.StringSet{},
}
configGenerationParams.SkipAccounts.Add(skipAccountList...)
getClientIDToProfiles, err := webserver.NewCachedGetClientIDToProfiles(
ctx,
&configGenerationParams,
awsSession,
)
if err != nil {
return errors.Wrap(err, "could not generate client id to aws role mapping")
}
routerConfig := &webserver.RouterConfig{
Verifier: verifier,
AwsGenerationParams: &configGenerationParams,
OktaAppClient: oktaAppClient,
GetClientIDToProfiles: getClientIDToProfiles,
}
router := webserver.GetRouter(ctx, routerConfig)
port := fmt.Sprintf(":%d", webServerPort)
return http.ListenAndServe(port, router)
}