PSTopo

Generate topo of process, including process status, port, fd, etc.

Workflow

• take a snapshot (snapshot.json) of current system info using psutil, including
  • process
  • net connection
• analyse to match target using config (config.json) and arguments.
• output the dot file (output.dot), including
  • process relationship (pid, cmdline, port)
  • connection info (listen port and host)
  • etc.

Install

go install github.com/FFengIll/pstopo@latest

Sample

Usage

pstopo

Creating a topo can work with process name, port number or pid number. All the matches will be output.

# auto generate snapshot, and filter them to output the output.dot
# if no snapshot, pstopo will take one
pstopo process_name :port_number pid

# specific existed snapshot and existed topo (config)
pstopo -s snapshot.json -t topo.json

# dynamic add config items
pstopo -s snapshot.json -t topo.json -o output_dir/sub_dir :8080 zsh

Furthermore, if the number is a name, use -n or --name for it.

pstopo reload

pstopo reload to reload exist snapshot and edit output via config in dynamic.

# reload
pstopo reload your_ouput_dir more_option

# with `-w`, pstopo will overwrite config.json
pstopo reload your_ouput_dir -w more_option

# e.g.
pstopo reload ./sample -w zsh

pstopo snapshot

pstopo can take a snapshot for current system status, then we can get topo from it and never lost original info (or changed while restart and so on).

pstopo snapshot -o your_name.json

template (WIP)

The pstopo use dot (aka graphviz) as default output, and then to svg / png / etc.

Using dot, pstopo will allow to customize output style for different information.

Template engine text/template is used and work with some inline variable as bellow

• port
• pid
• cmdline

Features

• analyse information of system process and port
• search and match information
• build a topo graph of the match
• output topo graph using graphviz
• serialize and deserialize process information (as snapshot)
• support template
• support customize template (for some info only)

License

MIT.