Caddylog

Caddylog reads Caddy logfiles and displays relevant information about the logs.

Usage

You pipe the log into caddylog and can optionally colorize it with tailspin:

tail -n20 -f access_log | caddylog | tspin

By default caddylog only reads in the JSON log format and prints each Log entry formatted as follows:

{LOG_LEVEL} {TIMESTAMP} {HOST} {METHOD} {PATH} {STATUS} {MSG} {PROTOCOL} {CLIENT_IP} {USER_AGENT}

You can filter out certain entries:

# Show only requests with unique User Agent
caddylog --unique ua

# Show only requests with unique IP
caddylog --unique ip

# Filter requests based on host
caddylog --host host

# Filter out 200 OK requests
caddylog --failed

Print only the unique values without full log entry:

caddylog --unique <unique> --value

Caddylog also has graph visualizations:

• Show number of requests per host

caddylog --stat host

• Show number of request per Geo location

caddylog --stat geo

• Show number of requests over time

caddylog --stat time

• Show how long requests take

caddylog --stat latency