amazon ec2 - how to get ec2 instances public dns name by ansible playbook -


i playing ansible automate ec2 instances. created ec2 instance , m trying public dns name via ec2_remote_facts module. giving variable not defined in output.

playbook:  - hosts:  localhost   connection: local    tasks:     - name: ec2 instance facts       ec2_remote_facts:         region: ap-southeast-2         filters:           instance-state-name:  running       register: ec2      - debug:  var=ec2.instances.public_name   output:play [localhost] ***************************************************************  task [setup] ******************************************************************* ok: [localhost]  task [create ec2 instance] ***************************************************** ok: [localhost]  task [debug] ******************************************************************* ok: [localhost] => {     "ec2.instances.public_name": "variable not defined!" }  play recap ********************************************************************* localhost                  : ok=3    changed=0    unreachable=0    failed=0      output ec2.instances.  ok: [localhost] => {     "ec2.instances": [         {             "ami_launch_index": "0",              "architecture": "x86_64",              "client_token": "",              "ebs_optimized": false,              "groups": [                 {                     "id": "sg-6c016a08",                      "name": "default"                 }             ],              "hypervisor": "xen",              "id": "i-915b1813",              "image_id": "ami-fedafc9d",              "instance_profile": null,              "interfaces": [                 {                     "id": "eni-96de4acf",                      "mac_address": "0a:14:ac:64:c4:13"                 }             ],              "kernel": null,              "key_name": "ansible.key",              "launch_time": "2016-08-29t07:32:10.000z",              "monitoring_state": "disabled",              "persistent": false,              "placement": {                 "tenancy": "default",                  "zone": "ap-southeast-2c"             },              "private_dns_name": "ip-xx-xx-xx-107.ap-southeast-2.compute.internal",              "private_ip_address": "xx.xx.xx.107",              "public_dns_name": "ec2-xx-xxx-xx-80.ap-southeast-2.compute.amazonaws.com",              "ramdisk": null,              "region": "ap-southeast-2",              "requester_id": null,              "root_device_type": "ebs",              "source_destination_check": "true",              "spot_instance_request_id": null,              "state": "running",              "tags": {                 "name": "demo"             },              "virtualization_type": "hvm",              "vpc_id": "vpc-abcaf4ce"         }     ] }

what m missing here?

thanks

benjo

if closely ec2.instances may note that:

  • it list, either access items index ec2.instances[0] or iterate on them with_items: structure.
  • there no public_name attribute, public_dns_name.

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