cannot access ec2.instances data

[Fred Badel]

Hello,

I am sure that I miss something obvious... but after having tried for a few hours, I just don't know where to look for a solution ...

I have the following playbook to create a new amazon instance and do a few things with it.

The instance is created correctly, but when I try to access to ec2_info.instances. private_ip variables, the playbook fail with an undefined variable error ...

Does any one have an idea?

Many thanks in advance.

Fred

** playbook:

---

- hosts: 127.0.0.1

  connection: local

  gather_facts: True

  vars:

      keypair: mykey

      dnsdomain: aws.domain.com

      fqdn: "{{ hostname }}.{{ dnsdomain }}"

  tasks:

      - name: create a vm

        local_action:

            ec2_url: https://ec2.eu-west-1.amazonaws.com

            module: ec2

            image: ami-75342c01

            count: 1

            instance_type: m1.large

            group:

                - J2EE

                - default

            key_name: "{{ keypair }}"

            vpc_subnet_id: subnet

            user_data: "{{ hostname }}.{{ dnsdomain }}"

            instance_tags: '{ "QA": "group", "Name": "{{ hostname }}" }'

            volumes:

                - device_name: /dev/sda1

                  volume_size: 10

                - device_name: /dev/sdb

                  ephemeral: ephemeral0

                - device_name: /dev/sdc

                  volume_size: 25

            wait: true

            wait_timeout: 500

            state: present

        register: ec2_info

      - name: register DNS name

        command: dnsupdate.py -s localhost -k Kddnsupdate.key -x add {{ fqdn }} 300 A {{ ec2_info.instances.private_ip }}

        sudo: yes

        remote_user: user

        delegate_to: dns_server

      - name: add new instance to inventory

        add_host: name={{ hostname }} groups=ci hostname={{ fqdn }} ansible_ssh_host={{ ec2_info.instances.private_ip }} ansible_ssh_private_key_file=~/.ssh/{{ keypair }}.pem

      - name: wait for instance to start

        wait_for: state=started host={{ ec2_info.instances.private_ip }} port=22

** error message:

TASK: [register DNS name] *****************************************************

fatal: [127.0.0.1] => One or more undefined variables: 'list' object has no attribute 'private_ip'

FATAL: all hosts have already failed -- aborting

** with a "debug=ec2_info.instances":

    "ec2_info.instances": [

        {

            "ami_launch_index": "0",

            "architecture": "x86_64",

            "dns_name": "",

            "hypervisor": "xen",

            "id": "i-d43324",

            "image_id": "ami-7",

            "instance_type": "m1.large",

            "kernel": "aki-54425520",

            "key_name": "ContinuousQA",

            "launch_time": "2014-04-07T12:30:29.000Z",

            "placement": "eu-west-1b",

            "private_dns_name": "ip-172-16-4-127.aws.domain.com",

            "private_ip": "172.16.4.127",

            "public_dns_name": "",

            "public_ip": null,

            "ramdisk": null,

            "region": "eu-west-1",

            "root_device_name": "/dev/sda1",

            "root_device_type": "ebs",

            "state": "running",

            "state_code": 16,

            "virtualization_type": "paravirtual"

        }

    ]

}

[Will Thames]

Hi,

"fatal: [127.0.0.1] => One or more undefined variables: 'list' object has no attribute 'private_ip'"

That's because ec2_info.instances is a list, not a dict.

If you use ec2_info.instances[0] you'll get the first (and in your case only) instance returned by ec2 (which can create multiple instances)

So ec2_info.instances[0].private_ip will get you what you're after.

Will

[Frédéric Badel]

Hi Will,

I knew it was something obvious! 

It is working much better now.

Thank you very much.

Fred

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