aws-infra-graph 0.1.2

Tool for visualizing AWS CloudFormation Import/Exports and displaying a dependency graph

Infrastructure Dependency visualization

This tool is looking at CloudFormation Export/Imports and visualizes them. It can additionally abstract and group dependencies at a higher level based on Tags attached on the involved CloudFormation tags.

In its default configuration it is looking for the tags ServiceName/Service , ComponentName/Componentand expects a stack naming scheme like the following:

reco-dev-storeloader-task-rfystorage
<project>-<env>-<component_name>

This things can be changed and need to be changed if you want to apply it in other accounts.

This tool additionally looks for upstream external dependencies which are not in the targeted AWS account. It does that by looking for CloudFormation parameter descriptions with metadata embedded. The following is one example:

Parameters:
  ...
  SnowflakeAccount:
    Type: String
    Description: "The snowflake account name which is used to connect to. | team=Data,service=Snowflake"

It generates GraphViz output in the output folder. Other additionally interesting information about the stacks is displayed in the stdout.

Configuration

Rename the config.hocon.template to config.hocon and adapt if you have external downstream dependencies depending on your services. Names need to match up with discovered service names. Additionally it is also possible to specify internal manual dependencies like manully create infrastructure components. In the configuration it is also possible to configure for which CloudFormation tags the higher level grouping is done. Instead of having a config in your current folder you can also use infra-graph init which creates a config in ~/.config/aws-infra-graph/config.hocon

How to execute

brew install graphviz # depends on the availability of the dot tool
poetry install
poetry shell
infra-graph --help
infra-graph init
infra-graph export
open output/

Heavy operations like gathering data from AWS are cached to disk. In case you want to re-gather the data add the --refresh flag.

Usage

Usage: infra-graph [OPTIONS] COMMAND [ARGS]...

Options:
  --help  Show this message and exit.

Commands:
  export  Gather data about the infra and visualize them
  init    Initialize config after installation

Usage: infra-graph export [OPTIONS]

  Gather data about the infra and visualize them

Options:
  -e, --env TEXT           On which environment to run this task. e.g. dev,
                           stg, prd  [default: dev]

  -t, --project-name TEXT  Project/Team name is expected of part of the
                           resource name and need to be specified here or
                           taken from config

  -r, --refresh            In case of disc cached result clear them beforehand
  --help                   Show this message and exit.