Mixing
Terraform retrieve CIDR/Prefix from existing VNETs/subnets
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}
In Terraform, I want to create a route table for an existing subnet. To achieve the desired end result, I need to pull the CIDR/Prefix for the VNET. The VNET CIDR value is not known beforehand, the only values I know before launch is the VNET's name and Resource Group.
I would like to take the VNET CIDR/Prefix and insert it as a destination in the route table.
data "azurerm_virtual_network" "vnet" {
name = "${var.vnet_name}"
resource_group_name = "${var.vnet_rg}"
}
module "routetable" {
source = "modules/routetable"
route_table_name = "${var.route_table_name}"
resource_group_name =
"${data.azurerm_resource_group.vnet.name}"
location = "eastus"
route_prefixes = ["0.0.0.0/0", "${EXISTING_VNET_CIDR_HERE}"]
route_nexthop_types = ["VirtualAppliance", "VirtualAppliance"]
route_names = ["route1", "route2"]
}
azure terraform asked Jan 3 at 16:02
chew224chew224
658
add a comment |
In Terraform, I want to create a route table for an existing subnet. To achieve the desired end result, I need to pull the CIDR/Prefix for the VNET. The VNET CIDR value is not known beforehand, the only values I know before launch is the VNET's name and Resource Group.
I would like to take the VNET CIDR/Prefix and insert it as a destination in the route table.
data "azurerm_virtual_network" "vnet" {
name = "${var.vnet_name}"
resource_group_name = "${var.vnet_rg}"
}
module "routetable" {
source = "modules/routetable"
route_table_name = "${var.route_table_name}"
resource_group_name =
"${data.azurerm_resource_group.vnet.name}"
location = "eastus"
route_prefixes = ["0.0.0.0/0", "${EXISTING_VNET_CIDR_HERE}"]
route_nexthop_types = ["VirtualAppliance", "VirtualAppliance"]
route_names = ["route1", "route2"]
}
asked Jan 3 at 16:02
chew224chew224
658
add a comment |
In Terraform, I want to create a route table for an existing subnet. To achieve the desired end result, I need to pull the CIDR/Prefix for the VNET. The VNET CIDR value is not known beforehand, the only values I know before launch is the VNET's name and Resource Group.
I would like to take the VNET CIDR/Prefix and insert it as a destination in the route table.
data "azurerm_virtual_network" "vnet" {
name = "${var.vnet_name}"
resource_group_name = "${var.vnet_rg}"
}
module "routetable" {
source = "modules/routetable"
route_table_name = "${var.route_table_name}"
resource_group_name =
"${data.azurerm_resource_group.vnet.name}"
location = "eastus"
route_prefixes = ["0.0.0.0/0", "${EXISTING_VNET_CIDR_HERE}"]
route_nexthop_types = ["VirtualAppliance", "VirtualAppliance"]
route_names = ["route1", "route2"]
}
asked Jan 3 at 16:02
chew224chew224
658
In Terraform, I want to create a route table for an existing subnet. To achieve the desired end result, I need to pull the CIDR/Prefix for the VNET. The VNET CIDR value is not known beforehand, the only values I know before launch is the VNET's name and Resource Group.
I would like to take the VNET CIDR/Prefix and insert it as a destination in the route table.
data "azurerm_virtual_network" "vnet" {
name = "${var.vnet_name}"
resource_group_name = "${var.vnet_rg}"
}
module "routetable" {
source = "modules/routetable"
route_table_name = "${var.route_table_name}"
resource_group_name =
"${data.azurerm_resource_group.vnet.name}"
location = "eastus"
route_prefixes = ["0.0.0.0/0", "${EXISTING_VNET_CIDR_HERE}"]
route_nexthop_types = ["VirtualAppliance", "VirtualAppliance"]
route_names = ["route1", "route2"]
}
asked Jan 3 at 16:02
chew224chew224
658
asked Jan 3 at 16:02
chew224chew224
658
asked Jan 3 at 16:02
chew224chew224
658
asked Jan 3 at 16:02
chew224chew224
658
asked Jan 3 at 16:02
chew224chew224
658
658
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
just use data you are getting from the vnet:
${data.azurerm_virtual_network.vnet.address_spaces}
the only issue - assress_spaces is an array (i think its called list in terraforms terms).
answered Jan 3 at 17:49
4c74356b414c74356b41
33.3k42758
1
Worked like a charm. I was using .vnet.address_space not .vnet.address_spaces. Terraform's documentation on attribute IDs uses address_space... interesting.
– chew224
Jan 3 at 18:04
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54025840%2fterraform-retrieve-cidr-prefix-from-existing-vnets-subnets%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
just use data you are getting from the vnet:
${data.azurerm_virtual_network.vnet.address_spaces}
the only issue - assress_spaces is an array (i think its called list in terraforms terms).
answered Jan 3 at 17:49
4c74356b414c74356b41
33.3k42758
1
Worked like a charm. I was using .vnet.address_space not .vnet.address_spaces. Terraform's documentation on attribute IDs uses address_space... interesting.
– chew224
Jan 3 at 18:04
add a comment |
just use data you are getting from the vnet:
${data.azurerm_virtual_network.vnet.address_spaces}
the only issue - assress_spaces is an array (i think its called list in terraforms terms).
answered Jan 3 at 17:49
4c74356b414c74356b41
33.3k42758
1
Worked like a charm. I was using .vnet.address_space not .vnet.address_spaces. Terraform's documentation on attribute IDs uses address_space... interesting.
– chew224
Jan 3 at 18:04
add a comment |
just use data you are getting from the vnet:
${data.azurerm_virtual_network.vnet.address_spaces}
the only issue - assress_spaces is an array (i think its called list in terraforms terms).
answered Jan 3 at 17:49
4c74356b414c74356b41
33.3k42758
just use data you are getting from the vnet:
${data.azurerm_virtual_network.vnet.address_spaces}
the only issue - assress_spaces is an array (i think its called list in terraforms terms).
answered Jan 3 at 17:49
4c74356b414c74356b41
33.3k42758
answered Jan 3 at 17:49
4c74356b414c74356b41
33.3k42758
answered Jan 3 at 17:49
4c74356b414c74356b41
33.3k42758
answered Jan 3 at 17:49
4c74356b414c74356b41
33.3k42758
33.3k42758
1
Worked like a charm. I was using .vnet.address_space not .vnet.address_spaces. Terraform's documentation on attribute IDs uses address_space... interesting.
– chew224
Jan 3 at 18:04
add a comment |
1
Worked like a charm. I was using .vnet.address_space not .vnet.address_spaces. Terraform's documentation on attribute IDs uses address_space... interesting.
– chew224
Jan 3 at 18:04
1
1
Worked like a charm. I was using .vnet.address_space not .vnet.address_spaces. Terraform's documentation on attribute IDs uses address_space... interesting.
– chew224
Jan 3 at 18:04
Worked like a charm. I was using .vnet.address_space not .vnet.address_spaces. Terraform's documentation on attribute IDs uses address_space... interesting.
– chew224
Jan 3 at 18:04
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54025840%2fterraform-retrieve-cidr-prefix-from-existing-vnets-subnets%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
