Tool for procesing AWS S3 access logs
Project description
A simple tool for parsing AWS S3 access logs. Can either be used from Python or via a command line wrapper.
Installation
Use pip
pip install s3-log-parse
Command Line usage
The s3logparse command line script will reformat logs according to the following conventions
All fields are tab separated
No fields are quoted
Null text fields (represented by -) are empty
Timestamp is ISO8601 formatted
Null numeric fields are converted to 0
The script can accept a single argument, the name of a log file
s3logparse mys3logfile.txt
piping will also work
cat allmys3logs/* | s3logparse
Python API
The parse_log_lines function iterates over raw log lines and converts them to a namedtuple with the following attributes: bucket_owner, bucket, timestamp, remote_ip, requester, request_id, operation, s3_key, request_uri, status_code, error_code, bytes_sent, object_size, total_time, turn_around_time, referrer, user_agent, version_id
Here is a simple example which extracts IP addresses from logs
from s3logparse import s3logparse
with open('mys3logs.txt') as fh:
for log_entry in parse_log_lines(fh.readlines()):
print(log_entry.ip_address)
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