我正在尝试找到一种方法来将 Ansible 清单文件存储在服务器本地空间以外的位置(例如 Azure)。这可以通过 Ansible 动态清单实现吗?我读过有关动态清单的文档,但对我来说,这有点令人困惑。可能是因为我这边缺乏知识。
简单来说,我的问题是:有没有办法将 ansible 清单文件存储在远程位置,并在运行剧本/角色时要求 ansible 从那里读取它?如果是这样,那是什么?
答案1
是的,这只能通过动态库存来实现。编写一个 Python 脚本,如下所示:
#!/usr/bin/env python
import os
import sys
import argparse
import json
import requests
class MyInventory(object):
def __init__(self):
self.inventory = {}
self.read_cli_args()
# Called with `--list`.
if self.args.list:
self.inventory = self.my_inventory()
# Called with `--host [hostname]`.
elif self.args.host:
# Not implemented, since we return _meta info `--list`.
self.inventory = self.host_inventory(self.args.host)
# If no groups or vars are present, return an empty inventory.
else:
self.inventory = self.empty_inventory('no args')
print(json.dumps(self.inventory, indent=2, sort_keys=True))
def my_inventory(self):
try:
if "INVENTORY_ENDPOINT" in os.environ:
url = os.environ.get('INVENTORY_ENDPOINT')
else:
url = 'https://myserver/inventory'
if "INVENTORY_USERNAME" in os.environ:
username = os.environ.get('INVENTORY_USERNAME')
else:
return self.empty_inventory('environment-variable INVENTORY_USERNAME not set')
if "INVENTORY_PASSWORD" in os.environ:
password = os.environ.get('INVENTORY_PASSWORD')
else:
return self.empty_inventory('environment-variable INVENTORY_PASSWORD not set')
headers = {
'Accept': 'application/json',
'User-Agent': 'dynamic-inventory-script/v1.0',
'Connection': 'close'
}
result = requests.get(url, timeout=5, auth=(username,password), headers=headers)
result.encoding = 'utf-8'
return json.loads(result.text)
except:
return {}
# Host inventory for testing.
def host_inventory(self, hostname):
return {
'_meta': {
'hostvars': {}
}
}
# Empty inventory for testing.
def empty_inventory(self,message):
return {
'_meta': {
'hostvars': {
'mesage': message
}
}
}
# Read the command line args passed to the script.
def read_cli_args(self):
parser = argparse.ArgumentParser()
parser.add_argument('--list', action = 'store_true')
parser.add_argument('--host', action = 'store')
self.args = parser.parse_args()
# Get the inventory.
MyInventory()
硬编码或系统环境变量的 URL 应该指向 JSON 格式的库存。
请注意 - 动态库存始终采用 JSON 格式,并且布局与 INI 或 YAML 文件不同。请参阅https://docs.ansible.com/ansible/latest/dev_guide/developing_inventory.html#developing-inventory-scripts
然后你可以通过以下方式调用 ansible-playbook
ansible-playbook -i inventory.py ...
请注意 - 清单脚本不能是 Python 脚本。bash 脚本也可以。只需要 JSON 输出。
#!/bin/sh
if [ -z "$INVENTORY_USERNAME" ]; then
echo "{}"
exit 0
fi
if [ -z "$INVENTORY_ENDPOINT" ]; then
INVENTORY_ENDPOINT="https://myserver/inventory"
fi
curl -s GET "$INVENTORY_ENDPOINT" -H "accept: application/json" --user $INVENTORY_USERNAME:$INVENTORY_PASSWORD &> /dev/stdout
#eof