-
Notifications
You must be signed in to change notification settings - Fork 2.1k
/
setup.go
140 lines (123 loc) · 4.45 KB
/
setup.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
package azure
import (
"context"
"strings"
"github.com/coredns/coredns/core/dnsserver"
"github.com/coredns/coredns/plugin"
"github.com/coredns/coredns/plugin/pkg/fall"
clog "github.com/coredns/coredns/plugin/pkg/log"
publicAzureDNS "github.com/Azure/azure-sdk-for-go/profiles/latest/dns/mgmt/dns"
privateAzureDNS "github.com/Azure/azure-sdk-for-go/profiles/latest/privatedns/mgmt/privatedns"
azurerest "github.com/Azure/go-autorest/autorest/azure"
"github.com/Azure/go-autorest/autorest/azure/auth"
"github.com/caddyserver/caddy"
)
var log = clog.NewWithPlugin("azure")
func init() { plugin.Register("azure", setup) }
func setup(c *caddy.Controller) error {
env, keys, accessMap, fall, err := parse(c)
if err != nil {
return plugin.Error("azure", err)
}
ctx := context.Background()
publicDNSClient := publicAzureDNS.NewRecordSetsClient(env.Values[auth.SubscriptionID])
if publicDNSClient.Authorizer, err = env.GetAuthorizer(); err != nil {
return plugin.Error("azure", err)
}
privateDNSClient := privateAzureDNS.NewRecordSetsClient(env.Values[auth.SubscriptionID])
if privateDNSClient.Authorizer, err = env.GetAuthorizer(); err != nil {
return plugin.Error("azure", err)
}
h, err := New(ctx, publicDNSClient, privateDNSClient, keys, accessMap)
if err != nil {
return plugin.Error("azure", err)
}
h.Fall = fall
if err := h.Run(ctx); err != nil {
return plugin.Error("azure", err)
}
dnsserver.GetConfig(c).AddPlugin(func(next plugin.Handler) plugin.Handler {
h.Next = next
return h
})
return nil
}
func parse(c *caddy.Controller) (auth.EnvironmentSettings, map[string][]string, map[string]string, fall.F, error) {
resourceGroupMapping := map[string][]string{}
accessMap := map[string]string{}
resourceGroupSet := map[string]struct{}{}
azureEnv := azurerest.PublicCloud
env := auth.EnvironmentSettings{Values: map[string]string{}}
var fall fall.F
var access string
var resourceGroup string
var zoneName string
for c.Next() {
args := c.RemainingArgs()
for i := 0; i < len(args); i++ {
parts := strings.SplitN(args[i], ":", 2)
if len(parts) != 2 {
return env, resourceGroupMapping, accessMap, fall, c.Errf("invalid resource group/zone: %q", args[i])
}
resourceGroup, zoneName = parts[0], parts[1]
if resourceGroup == "" || zoneName == "" {
return env, resourceGroupMapping, accessMap, fall, c.Errf("invalid resource group/zone: %q", args[i])
}
if _, ok := resourceGroupSet[resourceGroup+zoneName]; ok {
return env, resourceGroupMapping, accessMap, fall, c.Errf("conflicting zone: %q", args[i])
}
resourceGroupSet[resourceGroup+zoneName] = struct{}{}
accessMap[resourceGroup+zoneName] = "public"
resourceGroupMapping[resourceGroup] = append(resourceGroupMapping[resourceGroup], zoneName)
}
for c.NextBlock() {
switch c.Val() {
case "subscription":
if !c.NextArg() {
return env, resourceGroupMapping, accessMap, fall, c.ArgErr()
}
env.Values[auth.SubscriptionID] = c.Val()
case "tenant":
if !c.NextArg() {
return env, resourceGroupMapping, accessMap, fall, c.ArgErr()
}
env.Values[auth.TenantID] = c.Val()
case "client":
if !c.NextArg() {
return env, resourceGroupMapping, accessMap, fall, c.ArgErr()
}
env.Values[auth.ClientID] = c.Val()
case "secret":
if !c.NextArg() {
return env, resourceGroupMapping, accessMap, fall, c.ArgErr()
}
env.Values[auth.ClientSecret] = c.Val()
case "environment":
if !c.NextArg() {
return env, resourceGroupMapping, accessMap, fall, c.ArgErr()
}
env.Values[auth.ClientSecret] = c.Val()
var err error
if azureEnv, err = azurerest.EnvironmentFromName(c.Val()); err != nil {
return env, resourceGroupMapping, accessMap, fall, c.Errf("cannot set azure environment: %q", err.Error())
}
case "fallthrough":
fall.SetZonesFromArgs(c.RemainingArgs())
case "access":
if !c.NextArg() {
return env, resourceGroupMapping, accessMap, fall, c.ArgErr()
}
access = c.Val()
if access != "public" && access != "private" {
return env, resourceGroupMapping, accessMap, fall, c.Errf("invalid access value: can be public/private, found: %s", access)
}
accessMap[resourceGroup+zoneName] = access
default:
return env, resourceGroupMapping, accessMap, fall, c.Errf("unknown property: %q", c.Val())
}
}
}
env.Values[auth.Resource] = azureEnv.ResourceManagerEndpoint
env.Environment = azureEnv
return env, resourceGroupMapping, accessMap, fall, nil
}