Reverse proxy grapher
This is a useful little tool that will generate a nice graphviz graph illustrating your reverse proxy flow. It takes a manually curated YAML file describing the topology of your network, proxy definitions, and optionally a collection of nmap output files for additional port/service information and output a graph in any format supported by graphviz.
When run with --help:
usage: rev-proxy-grapher.py [-h] --topology TOPOLOGY [--resolve-dns] [--nmap-xml NMAP_XML [NMAP_XML ...]] [--limit-ext LIMIT_EXT [LIMIT_EXT ...]] [--font FONT] [--fontsize FONTSIZE] [--ranksep RANKSEP] [--out OUT] [--verbose] Draw a nice graph of your external to internal proxies optional arguments: -h, --help show this help message and exit --topology TOPOLOGY File describing the proxies and the topology of your networks (default: topology.yaml) --resolve-dns Attempt to resolve DNS for all IPs (default: False) --nmap-xml NMAP_XML [NMAP_XML ...] Get additional node details from these nmap XML scan files (default: ()) --limit-ext LIMIT_EXT [LIMIT_EXT ...] Only include these source IPs or networks (default: ()) --font FONT Font to use in the graph (default: droid sans,dejavu sans,helvetica) --fontsize FONTSIZE Font size to use in the graph (default: 11) --ranksep RANKSEP Node separation between columns (default: 1) --out OUT Write graph into this file, guessing the output format by extension (default: graph.png) --verbose Be more verbose (default: False)
See output of --help, and examples in the examples directory. To generate an example graph of your own, simply run:
rev-proxy-grapher.py --topology examples/topology.yaml
This will generate graph.png if everything worked well.
If you want to see what is added by running nmap:
rev-proxy-grapher.py \ --topology examples/topology.yaml \ --nmap-xml examples/nmap-external.xml \ --out graph-with-nmap.svg
Currently, this only supports one level of proxying. For example you cannot define a haproxy->nginx->lb-cluster relationship, but this will hopefully be coming in the future, as we have a need to get that properly represented anyway.
- Konstantin Ryabitsev <email@example.com>