# ec2\_vpc\_route\_table check mode **URL:** \ **Category:** Ansible Project\ **Tags:** aws\ **Created:** [June 29, 2017, 4:32pm UTC](https://forum.ansible.com/t/ec2-vpc-route-table-check-mode/24851 "2017-06-29T16:32:06Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Tom\_Paine1](https://avatars.discourse-cdn.com/v4/letter/t/3da27b/32.png) [@Tom\_Paine1](https://forum.ansible.com/u/Tom_Paine1)\ **Post date:** [June 29, 2017, 4:32pm UTC](https://forum.ansible.com/t/ec2-vpc-route-table-check-mode/24851/1 "2017-06-29T16:32:06Z")
When running ec2\_vpc\_route\_table module tasks in check mode (–check), the output says “changed”, but it is not clear what will be altered when check mode is off. How can I tell what will be changed for that task? Command output for a table with small number of routes: ` TASK [create route table] \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* task path: /Users/tom/repos/aws-codecommit/ansible-tower/util/ec2\_vpc\_route\_table\_output.yml:20 Thursday 29 June 2017 17:10:05 +0100 (0:00:08.642) 0:00:12.114 \*\*\*\*\*\*\*\*\* Using module file /usr/local/lib/python2.7/site-packages/ansible/modules/cloud/amazon/ec2\_vpc\_route\_table.py \<127.0.0.1\> ESTABLISH LOCAL CONNECTION FOR USER: tom \<127.0.0.1\> EXEC /bin/sh -c ‘/usr/local/opt/python/bin/python2.7 && sleep 0’ changed: [localhost] =\> { “changed”: true, “invocation”: { “module\_args”: { “aws\_access\_key”: null, “aws\_secret\_key”: null, “ec2\_url”: null, “lookup”: “tag”, “profile”: null, “propagating\_vgw\_ids”: , “purge\_routes”: true, “purge\_subnets”: true, “region”: “eu-central-1”, “route\_table\_id”: “rtb-d283b7ba”, “routes”: [ { “destination\_cidr\_block”: “10.195.1.0/24”, “gateway\_id”: “None”, “instance\_id”: “i-61271fdd”, “interface\_id”: “eni-2db23c52”, “vpc\_peering\_connection\_id”: “None” }, { “destination\_cidr\_block”: “10.195.2.0/24”, “gateway\_id”: “None”, “instance\_id”: “i-090a61db57068090c”, “interface\_id”: “eni-0ce2b460”, “vpc\_peering\_connection\_id”: “None” }, { “destination\_cidr\_block”: “10.64.0.0/22”, “gateway\_id”: “None”, “instance\_id”: “i-023d66bd07e4b89d4”, “interface\_id”: “eni-2e414243”, “vpc\_peering\_connection\_id”: “None” }, { “destination\_cidr\_block”: “10.192.16.0/20”, “gateway\_id”: “None”, “instance\_id”: “i-030a7771ba6ef2175”, “interface\_id”: “eni-23f0f04e”, “vpc\_peering\_connection\_id”: “None” }, { “destination\_cidr\_block”: “10.192.192.0/20”, “gateway\_id”: “None”, “instance\_id”: “i-61271fdd”, “interface\_id”: “eni-2db23c52”, “vpc\_peering\_connection\_id”: “None” }, { “destination\_cidr\_block”: “10.194.128.0/19”, “gateway\_id”: “local”, “instance\_id”: “None”, “interface\_id”: “None”, “vpc\_peering\_connection\_id”: “None” }, { “destination\_cidr\_block”: “10.194.160.0/19”, “gateway\_id”: “None”, “instance\_id”: “i-090a61db57068090c”, “interface\_id”: “eni-0ce2b460”, “vpc\_peering\_connection\_id”: “None” }, { “destination\_cidr\_block”: “0.0.0.0/0”, “gateway\_id”: “nat-0702f860217fc02f1”, “instance\_id”: “None”, “interface\_id”: “None”, “vpc\_peering\_connection\_id”: “None” } ], “security\_token”: null, “state”: “present”, “subnets”: [ “subnet-73151639”, “subnet-321b1878”, “subnet-911b18db”, “subnet-ad181be7”, “subnet-0514174f” ], “tags”: { “Name”: “private\_c” }, “validate\_certs”: true, “vpc\_id”: “vpc-12345f6a” } }, “route\_table”: { “id”: “rtb-d283b7ba”, “routes”: [ { “destination\_cidr\_block”: “10.195.1.0/24”, “gateway\_id”: null, “instance\_id”: “i-61271fdd”, “interface\_id”: “eni-2db23c52”, “origin”: “CreateRoute”, “state”: “active”, “vpc\_peering\_connection\_id”: null }, { “destination\_cidr\_block”: “10.195.2.0/24”, “gateway\_id”: null, “instance\_id”: “i-090a61db57068090c”, “interface\_id”: “eni-0ce2b460”, “origin”: “CreateRoute”, “state”: “active”, “vpc\_peering\_connection\_id”: null }, { “destination\_cidr\_block”: “10.64.0.0/22”, “gateway\_id”: null, “instance\_id”: “i-023d66bd07e4b89d4”, “interface\_id”: “eni-2e414243”, “origin”: “CreateRoute”, “state”: “active”, “vpc\_peering\_connection\_id”: null }, { “destination\_cidr\_block”: “10.192.16.0/20”, “gateway\_id”: null, “instance\_id”: “i-030a7771ba6ef2175”, “interface\_id”: “eni-23f0f04e”, “origin”: “CreateRoute”, “state”: “active”, “vpc\_peering\_connection\_id”: null }, { “destination\_cidr\_block”: “10.192.192.0/20”, “gateway\_id”: null, “instance\_id”: “i-61271fdd”, “interface\_id”: “eni-2db23c52”, “origin”: “CreateRoute”, “state”: “active”, “vpc\_peering\_connection\_id”: null }, { “destination\_cidr\_block”: “10.194.128.0/19”, “gateway\_id”: “local”, “instance\_id”: null, “interface\_id”: null, “origin”: “CreateRouteTable”, “state”: “active”, “vpc\_peering\_connection\_id”: null }, { “destination\_cidr\_block”: “10.194.160.0/19”, “gateway\_id”: null, “instance\_id”: “i-090a61db57068090c”, “interface\_id”: “eni-0ce2b460”, “origin”: “CreateRoute”, “state”: “active”, “vpc\_peering\_connection\_id”: null }, { “destination\_cidr\_block”: “0.0.0.0/0”, “gateway\_id”: null, “instance\_id”: null, “interface\_id”: null, “origin”: “CreateRoute”, “state”: “active”, “vpc\_peering\_connection\_id”: null } ], “tags”: { “Name”: “private\_c” }, “vpc\_id”: “vpc-12345f6a” } } ` ---
**Author:** ![Tom\_Paine1](https://avatars.discourse-cdn.com/v4/letter/t/3da27b/32.png) [@Tom\_Paine1](https://forum.ansible.com/u/Tom_Paine1)\ **Post date:** [June 29, 2017, 4:48pm UTC](https://forum.ansible.com/t/ec2-vpc-route-table-check-mode/24851/2 "2017-06-29T16:48:25Z")
Happy to add some code to the module if that’s the only way to do it - any docs available to show how ‘diff’ works on a module that doesn’t alter files?