pyvpc 0.0.7

Python AWS VPC CIDR available range finder with sub networks

PyVPC - CIDR free ranger resolver

Current version supports only AWS VPCs.
CIDR available range finder with sub networks

Install

pip install pyvpc

Usage

aws:

pyvpc aws [-h] [--cidr-range CIDR_RANGE]
          [--suggest-range {0-32}]
          [--num-of-addr NUM_OF_ADDR] [--region REGION]
          [--all-regions] [--vpc VPC]

Examples

• Assuming there are two AWS VPCs with CIDRs: 10.20.0.0/16 and 10.30.0.0/16, executing command:

  pyvpc aws --cidr-range 10.0.0.0/8
  

  will return:

  | Lowest IP   | Upper IP       |   Num of Addr | Available   | ID                    | Name         |
  |-------------|----------------|---------------|-------------|-----------------------|--------------|
  | 10.0.0.0    | 10.19.255.255  |       1310720 | True        |                       |              |
  | 10.20.0.0   | 10.20.255.255  |         65536 | False       | vpc-Ec9hQfmjk4sPCH65c | lev-test-vpc |
  | 10.21.0.0   | 10.29.255.255  |        589824 | True        |                       |              |
  | 10.30.0.0   | 10.30.255.255  |         65536 | False       | vpc-4WNpVY5wCLmdqfJLy | dev-k8s      |
  | 10.31.0.0   | 10.255.255.255 |      14745600 | True        |                       |              |
  

• For example, a VPC had the 10.50.0.0/16 cidr, executing command:

  pyvpc aws --vpc vpc-3w5cymcdnwjm389gq
  

  will return:

  | Lowest IP   | Upper IP      |   Num of Addr | Available   | ID                       | Name               |
  |-------------|---------------|---------------|-------------|--------------------------|--------------------|
  | 10.50.0.0   | 10.50.0.255   |           256 | True        |                          |                    |
  | 10.50.1.0   | 10.50.1.255   |           256 | False       | subnet-p7s6f7rsgrgtvr5fe | private-arie-test  |
  | 10.50.2.0   | 10.50.2.255   |           256 | False       | subnet-2nw28z822kcr9x726 | private-arie-test  |
  | 10.50.3.0   | 10.50.10.255  |          2048 | True        |                          |                    |
  | 10.50.11.0  | 10.50.11.255  |           256 | False       | subnet-3j744kpzmcg55qtza | public-arie-test   |
  | 10.50.12.0  | 10.50.12.255  |           256 | False       | subnet-6vjape4vfk4jhajg8 | public-arie-test   |
  | 10.50.13.0  | 10.50.20.255  |          2048 | True        |                          |                    |
  | 10.50.21.0  | 10.50.21.255  |           256 | False       | subnet-j8wv89u4u3v4kyqs7 | database-arie-test |
  | 10.50.22.0  | 10.50.22.255  |           256 | False       | subnet-7p4djeetkkkgmqqqk | database-arie-test |
  | 10.50.23.0  | 10.50.255.255 |         59648 | True        |                          |                    |
  

• Find next available network: For example we pass the --cidr-range 10.0.0.0/8 value, on the first example (10.20.0.0/16 and 10.30.0.0/16 are reserved).

  By adding --suggest-range 16 the result will be 10.0.0.0/16, as it the first available network with prefix 16.

  Or if adding --num-of-addr 2200000 (we need 2.2 million addresses), the result will be 10.64.0.0/10 as it the first available network containing this amount.