How to create with_items, on a submember?

Bhavin Parmar

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Mar 22, 2017, 1:44:10 PM3/22/17

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The output (i.e. module: ec2_snapshot) of a registered variable (i.e. ec2_snap) returns multiple members.

Playbook is:

--- # Take Snapshot of EC2s

- name: Take snapshot of EC2s

hosts: local

become: no

connection: local

gather_facts: yes

vars:

region: "us-east-1"

awsec2id: ["i-037b596065189XXXXX","i-04452f010e4cXXXXX"]

devname: "/dev/sda1"

date: "{{ lookup('pipe', 'date +%Y/%m/%d-%H:%M') }}"

tasks:

- name: Create Root snapshots

ec2_snapshot:

region: '{{ region }}'

instance_id: '{{ item }}'

device_name: '{{ devname }}'

description: 'snapshot of /dev/sda1 from {{ item }} taken {{ date }}'

state: present

snapshot_tags:

frequency: daily

source: '{{ devname }}'

register: ec2_snap

with_items: '{{ awsec2id }}'

- debug: var=ec2_snap

- debug: var=ec2_snap.results[0].invocation.module_args.device_name

- debug: var=ec2_snap.results[0].item

- debug: var=ec2_snap.results[0].volume_id

- debug: var=ec2_snap.results[0].snapshot_id

- name: "Task 2: Create files for each instance"

command: touch /home/ansible/playbooks/common/variables/'{{ item }}.yml'

with_items: "{{ awsec2id }}"

- name: "Task 3: Add string instance_id to file for each instance"

shell: 'printf "{{ item.volume_id }}" > /home/ansible/playbooks/common/variables/"{{ item.item }}"'

with_items: "{{ ec2_snap.results }}"

...

Error making code:

- name: "Task 3: Add string instance_id to file for each instance"

shell: 'printf "{{ item.volume_id }}" > /home/ansible/playbooks/common/variables/"{{ item.item }}"'

with_items: "{{ ec2_snap.results }}"

ec2_snap registered variable is having details of each of two snapshots in a relevant array element. How to create loop on them?

Short Output is as follow:

{
   "changed":false,
   "ec2_snap":{
      "changed":true,
      "msg":"All items completed",
      "results":[
         {  },
         {  }
      ]
   }
}

The extended output is as follow:

ok: [localhost] => {

"changed": false,

"ec2_snap": {

"changed": true,

"msg": "All items completed",

"results": [

{

"_ansible_item_result": true,

"_ansible_no_log": false,

"_ansible_parsed": true,

"changed": true,

"invocation": {

"module_args": {

"aws_access_key": null,

"aws_secret_key": null,

"description": "snapshot of /dev/sda1 from i-037b5960651XXXXX taken 2017/03/22-17:19",

"device_name": "/dev/sda1",

"ec2_url": null,

"instance_id": "i-037b59606518XXXXX",

"last_snapshot_min_age": 0,

"profile": null,

"region": "us-east-1",

"security_token": null,

"snapshot_id": null,

"snapshot_tags": {

"frequency": "daily",

"source": "/dev/sda1"

},

"state": "present",

"validate_certs": true,

"volume_id": null,

"wait": true,

"wait_timeout": 0

}

},

"item": "i-037b59606518XXXXX",

"snapshot_id": "snap-08d7aeda75dbXXXXX",

"tags": {

"frequency": "daily",

"source": "/dev/sda1"

},

"volume_id": "vol-09aec429dfcfXXXXX",

"volume_size": 8

},

{

"_ansible_item_result": true,

"_ansible_no_log": false,

"_ansible_parsed": true,

"changed": true,

"invocation": {

"module_args": {

"aws_access_key": null,

"aws_secret_key": null,

"description": "snapshot of /dev/sda1 from i-04452f010e4XXXXX taken 2017/03/22-17:20",

"device_name": "/dev/sda1",

"ec2_url": null,

"instance_id": "i-04452f010e4cXXXXX",

"last_snapshot_min_age": 0,

"profile": null,

"region": "us-east-1",

"security_token": null,

"snapshot_id": null,

"snapshot_tags": {

"frequency": "daily",

"source": "/dev/sda1"

},

"state": "present",

"validate_certs": true,

"volume_id": null,

"wait": true,

"wait_timeout": 0

}

},

"item": "i-04452f010e4caXXXXX",

"snapshot_id": "snap-0f8cb9b9d7b4XXXXX",

"tags": {

"frequency": "daily",

"source": "/dev/sda1"

},

"volume_id": "vol-0e0516ea9623XXXXX",

"volume_size": 15

}

]

}

Bhavin Parmar

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Mar 22, 2017, 2:00:11 PM3/22/17

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- Can it be resolved with with_submemebrs?

- Can someone please help me to understand?

Kai Stian Olstad

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Mar 22, 2017, 3:30:21 PM3/22/17

to ansible...@googlegroups.com

On 22. mars 2017 18:44, Bhavin Parmar wrote:
> *Error making code:*

> - name: "Task 3: Add string instance_id to file for each instance"
> shell: 'printf "{{ item.volume_id }}" > /home/ansible/playbooks/common/variables/"{{ item.item }}"'
> with_items: "{{ ec2_snap.results }}"
>
> ec2_snap registered variable is having details of each of two snapshots in
> a relevant array element. How to create loop on them?
>

> *The extended output is as follow:*

<snip>

I this output of ec2_snap is correct there is nothing wrong with your
loop code.

Since you haven't provided any output of the error it's impossible to help.

--
Kai Stian Olstad

Bhavin Parmar

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Mar 22, 2017, 10:55:33 PM3/22/17

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Piece of code is as follow:

# Manual accessing sub-elements

- debug: var=ec2_snap

- debug: var=ec2_snap.results[0].invocation.module_args.device_name

- debug: var=ec2_snap.results[0].item

- debug: var=ec2_snap.results[0].volume_id

- debug: var=ec2_snap.results[0].snapshot_id

- debug: var=ec2_snap.results[1].invocation.module_args.device_name

- debug: var=ec2_snap.results[1].item

- debug: var=ec2_snap.results[1].volume_id

- debug: var=ec2_snap.results[1].snapshot_id

# Works fine, Output for above code is as follow:

ok: [localhost] => {

"changed": false,

"ec2_snap.results[0].invocation.module_args.device_name": "/dev/sda1"

}