/
data_source_google_netblock_ip_ranges.go
201 lines (178 loc) · 7.26 KB
/
data_source_google_netblock_ip_ranges.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
package google
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
)
type googRanges struct {
SyncToken string `json:"syncToken"`
CreationTime string `json:"creationTime"`
Prefixes []prefixes `json:"prefixes"`
}
type prefixes struct {
Ipv4Prefix string `json:"ipv4Prefix"`
Ipv6Prefix string `json:"ipv6Prefix"`
}
func dataSourceGoogleNetblockIpRanges() *schema.Resource {
return &schema.Resource{
Read: dataSourceGoogleNetblockIpRangesRead,
Schema: map[string]*schema.Schema{
"range_type": {
Type: schema.TypeString,
Optional: true,
Default: "cloud-netblocks",
},
"cidr_blocks": {
Type: schema.TypeList,
Elem: &schema.Schema{Type: schema.TypeString},
Computed: true,
},
"cidr_blocks_ipv4": {
Type: schema.TypeList,
Elem: &schema.Schema{Type: schema.TypeString},
Computed: true,
},
"cidr_blocks_ipv6": {
Type: schema.TypeList,
Elem: &schema.Schema{Type: schema.TypeString},
Computed: true,
},
},
}
}
func dataSourceGoogleNetblockIpRangesRead(d *schema.ResourceData, meta interface{}) error {
rt := d.Get("range_type").(string)
CidrBlocks := make(map[string][]string)
switch rt {
// Dynamic ranges
case "cloud-netblocks":
// https://cloud.google.com/compute/docs/faq#find_ip_range
const CLOUD_NETBLOCK_URL = "https://www.gstatic.com/ipranges/cloud.json"
CidrBlocks, err := getCidrBlocksFromUrl(CLOUD_NETBLOCK_URL)
if err != nil {
return err
}
if err := d.Set("cidr_blocks", CidrBlocks["cidr_blocks"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks: %s", err)
}
if err := d.Set("cidr_blocks_ipv4", CidrBlocks["cidr_blocks_ipv4"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks_ipv4: %s", err)
}
if err := d.Set("cidr_blocks_ipv6", CidrBlocks["cidr_blocks_ipv6"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks_ipv6: %s", err)
}
case "google-netblocks":
// https://cloud.google.com/vpc/docs/configure-private-google-access?hl=en#ip-addr-defaults
const GOOGLE_NETBLOCK_URL = "https://www.gstatic.com/ipranges/goog.json"
CidrBlocks, err := getCidrBlocksFromUrl(GOOGLE_NETBLOCK_URL)
if err != nil {
return err
}
if err := d.Set("cidr_blocks", CidrBlocks["cidr_blocks"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks: %s", err)
}
if err := d.Set("cidr_blocks_ipv4", CidrBlocks["cidr_blocks_ipv4"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks_ipv4: %s", err)
}
if err := d.Set("cidr_blocks_ipv6", CidrBlocks["cidr_blocks_ipv6"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks_ipv6: %s", err)
}
// Static ranges
case "restricted-googleapis":
// https://cloud.google.com/vpc/docs/private-access-options#domain-vips
CidrBlocks["cidr_blocks_ipv4"] = append(CidrBlocks["cidr_blocks_ipv4"], "199.36.153.4/30")
CidrBlocks["cidr_blocks"] = CidrBlocks["cidr_blocks_ipv4"]
if err := d.Set("cidr_blocks", CidrBlocks["cidr_blocks"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks: %s", err)
}
if err := d.Set("cidr_blocks_ipv4", CidrBlocks["cidr_blocks_ipv4"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks_ipv4: %s", err)
}
case "private-googleapis":
// https://cloud.google.com/vpc/docs/private-access-options#domain-vips
CidrBlocks["cidr_blocks_ipv4"] = append(CidrBlocks["cidr_blocks_ipv4"], "199.36.153.8/30")
CidrBlocks["cidr_blocks"] = CidrBlocks["cidr_blocks_ipv4"]
if err := d.Set("cidr_blocks", CidrBlocks["cidr_blocks"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks: %s", err)
}
if err := d.Set("cidr_blocks_ipv4", CidrBlocks["cidr_blocks_ipv4"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks_ipv4: %s", err)
}
case "dns-forwarders":
// https://cloud.google.com/dns/zones/#creating-forwarding-zones
CidrBlocks["cidr_blocks_ipv4"] = append(CidrBlocks["cidr_blocks_ipv4"], "35.199.192.0/19")
CidrBlocks["cidr_blocks"] = CidrBlocks["cidr_blocks_ipv4"]
if err := d.Set("cidr_blocks", CidrBlocks["cidr_blocks"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks: %s", err)
}
if err := d.Set("cidr_blocks_ipv4", CidrBlocks["cidr_blocks_ipv4"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks_ipv4: %s", err)
}
case "iap-forwarders":
// https://cloud.google.com/iap/docs/using-tcp-forwarding
CidrBlocks["cidr_blocks_ipv4"] = append(CidrBlocks["cidr_blocks_ipv4"], "35.235.240.0/20")
CidrBlocks["cidr_blocks"] = CidrBlocks["cidr_blocks_ipv4"]
if err := d.Set("cidr_blocks", CidrBlocks["cidr_blocks"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks: %s", err)
}
if err := d.Set("cidr_blocks_ipv4", CidrBlocks["cidr_blocks_ipv4"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks_ipv4: %s", err)
}
case "health-checkers":
// https://cloud.google.com/load-balancing/docs/health-checks#fw-ruleh
CidrBlocks["cidr_blocks_ipv4"] = append(CidrBlocks["cidr_blocks_ipv4"], "35.191.0.0/16")
CidrBlocks["cidr_blocks_ipv4"] = append(CidrBlocks["cidr_blocks_ipv4"], "130.211.0.0/22")
CidrBlocks["cidr_blocks"] = CidrBlocks["cidr_blocks_ipv4"]
if err := d.Set("cidr_blocks", CidrBlocks["cidr_blocks"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks: %s", err)
}
if err := d.Set("cidr_blocks_ipv4", CidrBlocks["cidr_blocks_ipv4"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks_ipv4: %s", err)
}
case "legacy-health-checkers":
// https://cloud.google.com/load-balancing/docs/health-check#fw-netlbs
CidrBlocks["cidr_blocks_ipv4"] = append(CidrBlocks["cidr_blocks_ipv4"], "35.191.0.0/16")
CidrBlocks["cidr_blocks_ipv4"] = append(CidrBlocks["cidr_blocks_ipv4"], "209.85.152.0/22")
CidrBlocks["cidr_blocks_ipv4"] = append(CidrBlocks["cidr_blocks_ipv4"], "209.85.204.0/22")
CidrBlocks["cidr_blocks"] = CidrBlocks["cidr_blocks_ipv4"]
if err := d.Set("cidr_blocks", CidrBlocks["cidr_blocks"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks: %s", err)
}
if err := d.Set("cidr_blocks_ipv4", CidrBlocks["cidr_blocks_ipv4"]); err != nil {
return fmt.Errorf("Error setting cidr_blocks_ipv4: %s", err)
}
default:
return fmt.Errorf("Unknown range_type: %s", rt)
}
d.SetId("netblock-ip-ranges-" + rt)
return nil
}
func getCidrBlocksFromUrl(url string) (map[string][]string, error) {
cidrBlocks := make(map[string][]string)
response, err := http.Get(url)
if err != nil {
return nil, fmt.Errorf("Error: %s", err)
}
defer response.Body.Close()
body, err := ioutil.ReadAll(response.Body)
if err != nil {
return nil, fmt.Errorf("Error to retrieve the CIDR list: %s", err)
}
ranges := googRanges{}
jsonErr := json.Unmarshal(body, &ranges)
if jsonErr != nil {
return nil, fmt.Errorf("Error reading JSON list: %s", jsonErr)
}
for _, element := range ranges.Prefixes {
if len(element.Ipv4Prefix) > 0 {
cidrBlocks["cidr_blocks_ipv4"] = append(cidrBlocks["cidr_blocks_ipv4"], element.Ipv4Prefix)
cidrBlocks["cidr_blocks"] = append(cidrBlocks["cidr_blocks"], element.Ipv4Prefix)
} else if len(element.Ipv6Prefix) > 0 {
cidrBlocks["cidr_blocks_ipv6"] = append(cidrBlocks["cidr_blocks_ipv6"], element.Ipv6Prefix)
cidrBlocks["cidr_blocks"] = append(cidrBlocks["cidr_blocks"], element.Ipv6Prefix)
}
}
return cidrBlocks, nil
}