I am trying to read a YAML file that has the tag !vault in it. I get the error:

could not determine a constructor for the tag '!vault'

Upon reading a couple of blogs, I understood that I need to specify some constructors to resolve this issue, but I'm not clear on how to do it.

import yaml
from yaml.loader import SafeLoaderwith open('test.yml' ) as stream:try:inventory_info = yaml.safe_load(stream)except yaml.YAMLError as exc:print(exc)User = inventory_info['all']['children']['linux']['vars']['user']
key = inventory_info['all']['children']['linux']['vars']['key_file']

The YAML file I am using:

all:children:rhel:hosts: 172.18.144.98centos:hosts: 172.18.144.98  linux:children:rhel:centos:vars:user: "o9ansibleuser"key_file: "test.pem"ansible_password: !vault |$ANSIBLE_VAULT;2.1;AES2563234567899353936376166353

Either use the from_yaml utility function:

from ansible.parsing.utils.yaml import from_yaml# inventory_info = yaml.safe_load(stream)  # Change this
inventory_info = from_yaml(stream)         # to this

Or add the constructor to yaml.SafeLoader:

from ansible.parsing.yaml.objects import AnsibleVaultEncryptedUnicodedef construct_vault_encrypted_unicode(loader, node):value = loader.construct_scalar(node)return AnsibleVaultEncryptedUnicode(value)yaml.SafeLoader.add_constructor(u'!vault', construct_vault_encrypted_unicode)inventory_info = yaml.safe_load(stream)