TypeError: 'NoneType' object is not subscriptable in ansible

Question

this is my playbook.yml calling role

playbook.yml

---
- hosts: localhost
  name: ec2 launcher
  connection: local
  roles:
       - {role: aws-vpc}

my roles aws-vpc contains tasks,vars directory

main.yml in tasks

---
# tasks file for aws-vpc


- name: create VPC
  ec2_vpc_net:
    name: "{{ vpc_name }}"
    cidr_block: "{{ vpc_cidr }}"
    region: "{{ region }}"
    state: present
    aws_access_key: "{{ aws_access_key }}"
    aws_secret_key: "{{ aws_secret_key }}"
  register: vpc

- name: print vpc details
  debug:
        var: vpc

- name: create public subnet2
  ec2_vpc_subnet:
    state: present
    vpc_id: "{{ vpc.vpc.id }} "
    cidr: "{{ subnet2_cidr }}"
    az: "{{ az2 }}"
    aws_access_key: "{{ aws_access_key }}"
    aws_secret_key: "{{ aws_secret_key }}"
    map_public: yes
    resource_tags:
       Name: "{{ subnet2_name }}"
  register: subnet2

- name: print subnet2 details
  debug:
        var: subnet2

main.yml in vars

# vars file for aws-vpc

aws_access_key: "..........."
aws_secret_key: "............"
region: "us-west-2"

# VPC
vpc_cidr: 10.10.0.0/26
vpc_name: "my vpc"

# Subnet1
subnet1_name: "td-sb1"
subnet1_cidr: 10.10.0.0/27

# Subnet2
subnet2_name: "td-sb2"
subnet2_cidr: 10.10.0.32/27

# Availability zones
az1: "us-west-2a"
az2: "us-west-2b"
az3: "us-west-2c"
az4: "us-west-2d"

But executing ansible-playbook playbook.yml , it is showing following error:

TASK [aws-vpc : create public subnet2] *********************************************************************************************************************************************************************
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: TypeError: 'NoneType' object is not subscriptable
fatal: [localhost]: FAILED! => {"changed": false, "module_stderr": "Traceback (most recent call last):\n  File \"/home/prudhvi/.ansible/tmp/ansible-tmp-1567259099.58-219222309055552/AnsiballZ_ec2_vpc_subnet.py\", line 114, in <module>\n    _ansiballz_main()\n  File \"/home/prudhvi/.ansible/tmp/ansible-tmp-1567259099.58-219222309055552/AnsiballZ_ec2_vpc_subnet.py\", line 106, in _ansiballz_main\n    invoke_module(zipped_mod, temp_path, ANSIBALLZ_PARAMS)\n  File \"/home/prudhvi/.ansible/tmp/ansible-tmp-1567259099.58-219222309055552/AnsiballZ_ec2_vpc_subnet.py\", line 49, in invoke_module\n    imp.load_module('__main__', mod, module, MOD_DESC)\n  File \"/usr/lib/python3.6/imp.py\", line 235, in load_module\n    return load_source(name, filename, file)\n  File \"/usr/lib/python3.6/imp.py\", line 170, in load_source\n    module = _exec(spec, sys.modules[name])\n  File \"<frozen importlib._bootstrap>\", line 618, in _exec\n  File \"<frozen importlib._bootstrap_external>\", line 678, in exec_module\n  File \"<frozen importlib._bootstrap>\", line 219, in _call_with_frames_removed\n  File \"/tmp/ansible_ec2_vpc_subnet_payload_v3vahv3o/__main__.py\", line 602, in <module>\n  File \"/tmp/ansible_ec2_vpc_subnet_payload_v3vahv3o/__main__.py\", line 592, in main\n  File \"/tmp/ansible_ec2_vpc_subnet_payload_v3vahv3o/__main__.py\", line 504, in ensure_subnet_present\n  File \"/tmp/ansible_ec2_vpc_subnet_payload_v3vahv3o/__main__.py\", line 517, in ensure_final_subnet\nTypeError: 'NoneType' object is not subscriptable\n", "module_stdout": "", "msg": "MODULE FAILURE\nSee stdout/stderr for the exact error", "rc": 1}

PLAY RECAP *************************************************************************************************************************************************************************************************
localhost

Why it is coming and how to resolve it ..?

Here vpc is being created succesfully but subnet is creating problem. Why?

can you add the region parameter to the ec2_vpc_subnet module as it's using us-east-1` by default but your vpc is in us-west-2 — Arbab Nazar

PRUDHVI CHOWDHARY NEKKALAPUDI PRUDHVI CHOWDHARY NEKKALAPUDI · Accepted Answer · 2019-08-31T17:44:30

Finally,I found the answer and like to share with you

main.yml in tasks

- name: create public subnet2
  ec2_vpc_subnet:
    state: present
    vpc_id: "{{ vpc.vpc.id }}"     # initially it was vpc_id: "{{ vpc.vpc.id }} " 
    cidr: "{{ subnet2_cidr }}"
    az: "{{ az2 }}"
    aws_access_key: "{{ aws_access_key }}"
    aws_secret_key: "{{ aws_secret_key }}"
    map_public: yes
    resource_tags:
       Name: "{{ subnet2_name }}"
  register: subnet2

- name: print subnet2 details
  debug:
        var: subnet2

Issue is with space.So please take care of these issues.

TypeError: 'NoneType' object is not subscriptable in ansible

1 Answers