将输出转换为列表（和嵌套字典）答案

【问题标题】：convert output to list(and nested dictionary)将输出转换为列表（和嵌套字典）
【发布时间】：2015-07-22 05:39:06
【问题描述】：

import boto.ec2

sgs = boto.ec2.connect_to_region('us-east-1').get_all_security_groups()

for sg in sgs:
    for rule in sg.rules:
        print sg, sg.id, "inbound:", rule, " source:", rule.grants

SecurityGroup:default sg-e1304484 inbound: IPPermissions:tcp(80-80)  source: [67.184.225.222/32]
SecurityGroup:default sg-e1304484 inbound: IPPermissions:tcp(5500-5500)  source: [67.184.225.222/32]
SecurityGroup:Pub_HDP_SG sg-e632d982 inbound: IPPermissions:tcp(80-80)  source: [0.0.0.0/0]
SecurityGroup:sg3-MySecurityGroup-LB0QF9UQAOEF sg-4fe73728 inbound: IPPermissions:tcp(22-22)  source: [0.0.0.0/0]
SecurityGroup:sg3-MySecurityGroup-LB0QF9UQAOEF sg-4fe73728 inbound: IPPermissions:tcp(80-80)  source: [0.0.0.0/0]
SecurityGroup:RDP Rule - open everyone  sg-42d58d27 inbound: IPPermissions:-1(None-None)  source: [0.0.0.0/0]
SecurityGroup:us-east-open-all sg-97ffa7f2 inbound: IPPermissions:tcp(22-22)  source: [10.0.20.100/32]
SecurityGroup:us-east-open-all sg-97ffa7f2 inbound: IPPermissions:tcp(53-53)  source: [10.0.20.100/32]
SecurityGroup:wordpress-app-SG sg-99c4befc inbound: IPPermissions:-1(None-None)  source: [sg-e632d982-995635159130]
SecurityGroup:wordpress-app-SG sg-99c4befc inbound: IPPermissions:tcp(22-22)  source: [67.184.225.222/32]
SecurityGroup:wordpress-app-SG sg-99c4befc inbound: IPPermissions:tcp(1024-65535)  source: [10.0.20.100/32]
SecurityGroup:wordpress-app-SG sg-99c4befc inbound: IPPermissions:tcp(80-80)  source: [24.12.30.198/32]
SecurityGroup:wordpress-app-SG sg-99c4befc inbound: IPPermissions:udp(138-138)  source: [10.0.20.100/32]
SecurityGroup:wordpress-app-SG sg-99c4befc inbound: IPPermissions:udp(53-53)  source: [24.12.30.198/32]
SecurityGroup:wordpress-app-SG sg-99c4befc inbound: IPPermissions:tcp(30015-30015)  source: [0.0.0.0/0]
SecurityGroup:wordpress-app-SG sg-99c4befc inbound: IPPermissions:icmp(-1--1)  source: [10.0.20.100/32]
SecurityGroup:default sg-c65a20a3 inbound: IPPermissions:-1(None-None)  source: [sg-c65a20a3-995635159130]
SecurityGroup:default sg-c65a20a3 inbound: IPPermissions:-1(None-None)  source: [sg-99c4befc-995635159130]
SecurityGroup:sg3-MySecurityGroup2-1HGPN4UF57XN6 sg-4ee73729 inbound: IPPermissions:tcp(22-22)  source: [192.168.1.12/32]
SecurityGroup:AWS-AMI-SG sg-35568d51 inbound: IPPermissions:tcp(22-22)  source: [0.0.0.0/0]
SecurityGroup:launch-wizard-2 sg-932255f6 inbound: IPPermissions:tcp(22-22)  source: [10.0.20.100/32]
SecurityGroup:launch-wizard-2 sg-932255f6 inbound: IPPermissions:tcp(443-443)  source: [0.0.0.0/0]
>>>

大家好，

对于每个安全组，我如何将其转换为一个列表，该列表又将包含 cidr 块、协议类型和端口的字典...所以从上面的输出来看，名为“默认”的安全组有 2 条规则。 ..允许从 80 和 5500 到源 IP 的 TCP 端口，然后称为“Pub_HDP_SG”的安全组只有一个规则……依此类推……这是我试图以表格形式输出的输出一个列表......

我打算做的是，获取列表（和嵌套字典）并将其传递给一个函数，该函数将使用对流层（类似于“http://imil.net/wp/2015/06/04/rock-your-cloudformation-with-troposphere-and-boto/”）输出一个 cloudformation 模板

rule1 = [{
    'cidr': '67.184.225.222/32',
    'proto': 'tcp',
    'port': 80
},{
    'cidr': '67.184.225.222/32',
    'proto': 'tcp',
    'port': 5500
}]

rule2 = [{
    'cidr': '[0.0.0.0/0',
    'proto': 'tcp',
    'port': 80
}]

rule3 = [{
    'cidr': '0.0.0.0/0',
    'proto': 'tcp',
    'port': 22
},{
    'cidr': '0.0.0.0/0',
    'proto': 'tcp',
    'port': 80
}]

【问题讨论】：

标签： python python-2.7 python-3.x amazon-web-services boto

【解决方案1】：

get_all_security_groups() 返回一个对象列表。并且每个对象都包含其他对象，因此您需要先了解继承关系。然后，一旦你得到这个，你就可以遍历结果并构造一个字典。

例如：

[
  {
     'cidr': x.rules[0].grants[0], 
     'proto': x.rules[0].ip_protocol
     # so on ....
  } for x in sgs if x.rules
]

【讨论】：