Requires Help ,using Python for accessing dictionary values from yaml file
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Pawan Kumar
Sep 2, 2019, 6:18:42 PM9/2/19
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Using Python script to access values from yaml dictionary & print some of the values as list .
For Example - Parse the each key and extract the “product_name”, “release_candidate” and “version“ & Print results as list
The yaml file looks like
- releases:
- gotcha:
file_name: gtp.tar
md5: 11f6987275613ca3ecf832ea59c1
product_name: gotcha
product_number: GTP 8881
release_candidate: rc19
version: 19.0.0
- tp:
file_name: tpr.tar
md5: ebd7742ed8fff0472733c0cd8e
product_name: tp
product_number: TTP 8057
release_candidate: rc25
version: 25.0.0
Dick Visser
Sep 2, 2019, 6:36:16 PM9/2/19
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Hi
Kindly explain where ansible comes into play in this story?
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Sent from a mobile device - please excuse the brevity, spelling and punctuation.
Pawan Kumar
Sep 2, 2019, 7:01:37 PM9/2/19
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Hi Dick,
Thanks for replying .
Well said , i was working with Ansible to parse values from dictionary file .
working with the following ansible playbook
---
- hosts: 127.0.0.1
connection: local
vars_files:
- latest123.yaml
tasks:
- name: Printing "releases" value from yaml file...
debug:
msg: "Name of the Product is {{ releases[item]['product_name'] }} it's release candidate: {{ releases[item]['release_candidate'] }} & version: {{ releases[item]['version'] }}"
with_items: "{{ releases.keys() }}"
from the following latest123.yaml file
---
- releases:
gotcha:
file_name: gtp.tar
md5: 11f6987275613ca3ecf832ea59c1
product_name: gotcha
product_number: GTP 8881
release_candidate: rc19
version: 19.0.0
tp:
file_name: tpr.tar
md5: ebd7742ed8fff0472733c0cd8e
product_name: tp
product_number: TTP 8057
release_candidate: rc25
version: 25.0.0
device_name:
file_name: dna.tar
md5: e464e69a07123de075778aa9b7
product_name: device_name
product_number: DNP 6746
release_candidate: rc25
version: 25.0.0
On Tuesday, September 3, 2019 at 4:06:16 AM UTC+5:30, Dick Visser wrote:
HiKindly explain where ansible comes into play in this story?
On Tue, 3 Sep 2019 at 00:18, Pawan Kumar <pawa...@gmail.com> wrote:
--Using Python script to access values from yaml dictionary & print some of the values as list .For Example - Parse the each key and extract the “product_name”, “release_candidate” and “version“ & Print results as listThe yaml file looks like- releases:- gotcha:file_name: gtp.tarmd5: 11f6987275613ca3ecf832ea59c1product_name: gotchaproduct_number: GTP 8881release_candidate: rc19version: 19.0.0- tp:file_name: tpr.tarmd5: ebd7742ed8fff0472733c0cd8eproduct_name: tpproduct_number: TTP 8057release_candidate: rc25version: 25.0.0
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Pawan Kumar
Sep 2, 2019, 7:09:16 PM9/2/19
to Ansible Project
My Ansible code works fine , if i call dictionary values from file .
But requires guidance , how using the yaml file to pass as argument as INV file command line to execute playbook:
something like :
"ansible-playbook test.yml -e INV_FILE=latest123.yaml"
Zolvaring
Sep 3, 2019, 1:38:53 AM9/3/19
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I think what you want to do to use cli is specify the path as your var name just like your example, and then in your code when you invoke the variable, use the file lookup:
- set_fact:
your_fact: "{{ lookup('file', INV_VAR) }}"
I'm not clear if you will need to do something beyond that for it to naturally interpret the yaml object though there's a chance you'll still end up with a string.
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Pawan Kumar
Sep 3, 2019, 11:06:57 AM9/3/19
to Ansible Project
Thanks Zolvaring ,
Took input from the file & now output is coming in string format with following command ---
Now , Requires formatting of the output to a list .
"ansible-playbook test.yml -e INV_FILE=latest123.yaml"
test.yml
---
- hosts: 127.0.0.1
connection: local
tasks:
- name: Print
set_fact:
your_fact: "{{ lookup('file', INV_FILE) }}"
- name: Demonstrate
debug:
msg: "{{ your_fact }}"
===============================================
& Output gives values in string format
TASK [Demonstrate] **************************************************************************************************************************************************************************************************************************
ok: [127.0.0.1] => {
"msg": "---\n- releases:\n gotcha:\n file_name: gtp.tar\n md5: 11f6987275613ca3ecf832ea59c1\n product_name: gotcha\n product_number: GTP 8881\n release_candidate: rc19\n version: 19.0.0\n tp:\n file_name: tpr.tar\n md5: ebd7742ed8fff0472733c0cd8e\n product_name: tp\n product_number: TTP 8057\n release_candidate: rc25\n version: 25.0.0\n device_name:\n file_name: dna.tar\n md5: e464e69a07123de075778aa9b7\n product_name: device_name\n product_number: DNP 6746\n release_candidate: rc25\n version: 25.0.0\n abc:\n file_name: abc.tar.gz\n md5: 94d992844322a05e9f4bec250f\n product_name: abc\n product_number: None\n release_candidate: rc24\n version: Raka_24_A\n adaptor:\n file_name: aap.tar\n md5: 84f75908bac48ddaae564e63\n product_name: adaptor\n product_number: apt 7815\n release_candidate: rc25\n version: 25.1.1\n trai:\n file_name: trai.tar\n md5: d992f1a34320f0590b52f69\n product_name: trai\n product_number: trp 6290\n release_candidate: rc23\n version: 23.2.0\n prxy:\n file_name: prp.tar\n md5: dc345ef912779f6f2be252a79\n product_name: prxy\n product_number: ppp 903\n release_candidate: rc26\n version: 26.0.1\n luc:\n file_name: lxp.tar\n md5: 96f0e6f9ba753978e19d393cb\n product_name: luc\n product_number: lxp 7686\n release_candidate: RC26\n version: 26.2.0\n west:\n file_name: wxp.tar\n md5: 048e15e3717be5302471ccb83\n product_name: west\n product_number: wxp 8347\n release_candidate: rc26\n version: 26.1.1\n world:\n file_name: wxp1.tar\n md5: dbb86bf189bdb39b3f7a66150\n product_name: world\n product_number: wld 6384\n release_candidate: rc24\n version: 24.0.0\n breaking:\n file_name: brp.tar\n md5: 051656275ed763b34c8de98de\n product_name: breaking\n product_number: brp 8059\n release_candidate: RC25\n version: 25.0.0\n bad:\n file_name: bdp.tar\n md5: 2f163c117e5bfaa7d5b7700d8\n product_name: bad\n product_number: bdp 8056\n release_candidate: rc25\n version: 25.0.0\n flash:\n file_name: dc.tar\n md5: ee811c2e6f434e190aec46f\n product_name: flash\n product_number: fls 902 \n release_candidate: RC24\n version: 24.0.0\n arrow:\n file_name: arr.tar\n md5: 4e5ba127475c6242491a2cb1\n product_name: arrow\n product_number: aro 7655\n release_candidate: rc25\n version: 25.0.0\n legends:\n file_name: lxr.tar\n md5: 9f2dbed641703a75dc88ffc0\n product_name: legends\n product_number: lxr 6291\n release_candidate: rc18\n version: 18.0.0\n zoom:\n file_name: zxp.tar\n md5: ba3cd0da6e81df20afce3e2\n product_name: zoom\n product_number: zxp 7801\n release_candidate: rc25\n version: 25.0.0\n savitar:\n file_name: sav.tar\n md5: 666c7b470e47a3\n product_name: savitar\n product_number: CXP 5110\n release_candidate: RC23\n version: 23.0.0\n scarlett:\n file_name: sxp228.tar\n md5: 151127dfa1f5a335dd3052d1\n product_name: scarlet\n product_number: sxp 6292\n release_candidate: rc18\n version: 18.0.0"
}
========================================================================================
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Zolvaring
Sep 4, 2019, 1:15:45 AM9/4/19
to Ansible Project
Hm okay I'm not sure that would work, but gojng back to your original example, have you tried passing the yaml file like this when you run the playbook?
"--extra-vars=@your_yaml_file.yml"
Reading I think that should work the same as running it "with_vars"
Pawan Kumar
Sep 4, 2019, 2:17:50 AM9/4/19
to Ansible Project
Thanks @Zolvaring
But unable to print key values in dictonary format , For example - Each key is product. Parse the each key and extract the “product_name”, “release_candidate” and “version“
ansible_dictionary.yml
---
- hosts: 127.0.0.1
connection: local
tasks:
- name: Print
set_fact:
your_fact: "{{ lookup('file', INV_FILE) }}"
stdout_callback: yaml
- name: Output Formatting
set_fact:
filtered_data: "{{ your_fact.split('\n') }}"
- name: Testing
debug:
msg: "{{ filtered_data }}"
With Following Output......
TASK [Output Formatting] ********************************************************************************************************************************************************************************************************************
ok: [127.0.0.1]
TASK [Testing] ******************************************************************************************************************************************************************************************************************************
ok: [127.0.0.1] => {
"msg": [
"- releases:",
" - gotcha:",
" file_name: gtp.tar",
" md5: 11f6987275613ca3ecf832ea59c1",
" product_name: gotcha",
" product_number: GTP 8881",
" release_candidate: rc19",
" version: 19.0.0",
" - tp:",
" file_name: tpr.tar",
" md5: ebd7742ed8fff0472733c0cd8e",
" product_name: tp",
" product_number: TTP 8057",
" release_candidate: rc25",
" version: 25.0.0",
" - device_name:",
" file_name: dna.tar",
" md5: e464e69a07123de075778aa9b7",
" product_name: device_name",
" product_number: DNP 6746",
" release_candidate: rc25",
" version: 25.0.0",
Zolvaring
Sep 4, 2019, 10:30:53 AM9/4/19
to Ansible Project
Hey Pawan,
I got the laptop out and tried:
ansible-playbook testplay.yml -i localhost, -e "@testvars.yml"
and got:
ERROR! Invalid extra vars data supplied. '@testvars.yml' could not be made into a dictionary
After digging, I found:
https://github.com/ansible/ansible/issues/38415
https://github.com/ansible/ansible/pull/31433
The above issues (Recent as of Dec 2018) point out that YAML was never accepted as CLI args, though at one point the documentation erroneously claimed it was.
https://github.com/ansible/ansible/pull/31433
The above issues (Recent as of Dec 2018) point out that YAML was never accepted as CLI args, though at one point the documentation erroneously claimed it was.
What I did was this:
---
- hosts: 127.0.0.1
connection: local
vars_files:
- "{{ TEST }}"
tasks:
- name: Testing
debug:
msg: "{{ releases }}"
---
- releases:
gotcha:
file_name: gtp.tar
md5: 11f6987275613ca3ecf832ea59c1
product_name: gotcha
product_number: GTP 8881
release_candidate: rc19
version: 19.0.0
tp:
file_name: tpr.tar
md5: ebd7742ed8fff0472733c0cd8e
product_name: tp
product_number: TTP 8057
release_candidate: rc25
version: 25.0.0
device_name:
file_name: dna.tar
md5: e464e69a07123de075778aa9b7
product_name: device_name
product_number: DNP 6746
release_candidate: rc25
version: 25.0.0
And then ran:
ansible-playbook testplay.yml -i localhost, -e "TEST=testvars.yml"
And got:
TASK [Gathering Facts] **************************************************************************************************************************************************************
ok: [localhost]
TASK [Testing] **********************************************************************************************************************************************************************
ok: [localhost] => {
"msg": {
"device_name": {
"file_name": "dna.tar",
"md5": "e464e69a07123de075778aa9b7",
"product_name": "device_name",
"product_number": "DNP 6746",
"release_candidate": "rc25",
"version": "25.0.0"
},
"gotcha": {
"file_name": "gtp.tar",
"md5": "11f6987275613ca3ecf832ea59c1",
"product_name": "gotcha",
"product_number": "GTP 8881",
"release_candidate": "rc19",
"version": "19.0.0"
},
"tp": {
"file_name": "tpr.tar",
"md5": "ebd7742ed8fff0472733c0cd8e",
"product_name": "tp",
"product_number": "TTP 8057",
"release_candidate": "rc25",
"version": "25.0.0"
}
}
}
It looks to me like if you want to dynamically supply the vars file as YAML on cli, that is your best bet. Use 'vars_files' with a dynamic var and declare that var on the cli
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