-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathmain.tf
194 lines (176 loc) · 6.09 KB
/
main.tf
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
locals {
prefix = var.project_prefix != "" ? var.project_prefix : "${random_string.prefix.0.result}"
zones = length(data.ibm_is_zones.regional.zones)
vpc_zones = {
for zone in range(local.zones) : zone => {
zone = "${var.ibmcloud_region}-${zone + 1}"
}
}
tags = [
"provider:ibm",
"region:${var.ibmcloud_region}"
]
}
# If no project prefix is defined, generate a random one
resource "random_string" "prefix" {
count = var.project_prefix != "" ? 0 : 1
length = 4
special = false
numeric = false
upper = false
}
resource "random_string" "vpn_preshared_key" {
length = 24
special = false
}
# If an existing resource group is provided, this module returns the ID, otherwise it creates a new one and returns the ID
module "resource_group" {
source = "terraform-ibm-modules/resource-group/ibm"
version = "1.1.5"
resource_group_name = var.existing_resource_group == null ? "${local.prefix}-resource-group" : null
existing_resource_group_name = var.existing_resource_group
}
module "site_a_vpc" {
source = "./modules/vpc"
name = "${local.prefix}-site-a"
resource_group_id = module.resource_group.resource_group_id
ibmcloud_region = var.ibmcloud_region
tags = concat(local.tags, ["site_a"])
site_address_prefix = "172.16.0.0/16"
}
module "site_b_vpc" {
source = "./modules/vpc"
name = "${local.prefix}-site-b"
resource_group_id = module.resource_group.resource_group_id
ibmcloud_region = var.ibmcloud_region
tags = concat(local.tags, ["site_b"])
site_address_prefix = "192.168.0.0/16"
}
# Add rules to the default security group of the VPCs.
# this is here mainly for an example of the syntax
module "update_site_a_security_group" {
depends_on = [module.site_a_vpc, module.site_b_vpc]
source = "terraform-ibm-modules/security-group/ibm"
add_ibm_cloud_internal_rules = true
use_existing_security_group = true
existing_security_group_name = module.site_a_vpc.default_security_group_name
security_group_rules = [
{
name = "allow-icmp-inbound"
direction = "inbound"
icmp = {
type = 8
}
remote = "0.0.0.0/0"
},
{
name = "allow-ssh-inbound"
direction = "inbound"
tcp = {
port_min = 22
port_max = 22
}
remote = "0.0.0.0/0"
}
]
tags = local.tags
}
module "update_site_b_security_group" {
depends_on = [module.site_a_vpc, module.site_b_vpc]
source = "terraform-ibm-modules/security-group/ibm"
add_ibm_cloud_internal_rules = true
use_existing_security_group = true
existing_security_group_name = module.site_b_vpc.default_security_group_name
security_group_rules = [
{
name = "allow-icmp-inbound"
direction = "inbound"
icmp = {
type = 8
}
remote = "0.0.0.0/0"
},
{
name = "allow-ssh-inbound"
direction = "inbound"
tcp = {
port_min = 22
port_max = 22
}
remote = "0.0.0.0/0"
}
]
tags = local.tags
}
resource "ibm_is_vpn_gateway" "site_a_s2s" {
name = "${local.prefix}-site-a-vpn"
subnet = module.site_a_vpc.vpn_subnet_id
mode = "policy"
resource_group = module.resource_group.resource_group_id
tags = local.tags
}
resource "ibm_is_vpn_gateway" "site_b_s2s" {
name = "${local.prefix}-site-b-vpn"
subnet = module.site_b_vpc.vpn_subnet_id
mode = "policy"
resource_group = module.resource_group.resource_group_id
tags = local.tags
}
resource "ibm_is_vpn_gateway_connection" "site_a_connection" {
name = "${local.prefix}-site-a-connection"
vpn_gateway = ibm_is_vpn_gateway.site_a_s2s.id
preshared_key = random_string.vpn_preshared_key.result
peer {
address = ibm_is_vpn_gateway.site_b_s2s.public_ip_address
cidrs = [module.site_b_vpc.compute_subnet_cidr]
}
local {
cidrs = [module.site_a_vpc.compute_subnet_cidr]
}
}
resource "ibm_is_vpn_gateway_connection" "site_b_connection" {
name = "${local.prefix}-site-b-connection"
vpn_gateway = ibm_is_vpn_gateway.site_b_s2s.id
preshared_key = random_string.vpn_preshared_key.result
peer {
address = ibm_is_vpn_gateway.site_a_s2s.public_ip_address
cidrs = [module.site_a_vpc.compute_subnet_cidr]
}
local {
cidrs = [module.site_b_vpc.compute_subnet_cidr]
}
}
module "site_a_compute" {
source = "./modules/compute"
name = "${local.prefix}-a-instance"
zone = local.vpc_zones[0].zone
vpc_id = module.site_a_vpc.vpc_id
subnet_id = module.site_a_vpc.compute_subnet_id
resource_group_id = module.resource_group.resource_group_id
tags = concat(local.tags, ["site_a"])
instance_security_group = module.site_a_vpc.default_security_group
ssh_key_ids = [data.ibm_is_ssh_key.sshkey.id]
}
module "site_b_compute" {
source = "./modules/compute"
name = "${local.prefix}-b-instance"
zone = local.vpc_zones[0].zone
vpc_id = module.site_b_vpc.vpc_id
subnet_id = module.site_b_vpc.compute_subnet_id
resource_group_id = module.resource_group.resource_group_id
tags = concat(local.tags, ["site_b"])
instance_security_group = module.site_b_vpc.default_security_group
ssh_key_ids = [data.ibm_is_ssh_key.sshkey.id]
}
resource "ibm_is_floating_ip" "site_a" {
name = "${local.prefix}-a-fip"
target = module.site_a_compute.vnic_id
resource_group = module.resource_group.resource_group_id
tags = concat(local.tags, ["site_a"])
}
resource "ibm_is_floating_ip" "site_b" {
name = "${local.prefix}-b-fip"
target = module.site_b_compute.vnic_id
resource_group = module.resource_group.resource_group_id
tags = concat(local.tags, ["site_b"])
}