Created
September 22, 2022 14:21
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Script for formatting logstash logs in a human readable manner
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#!/usr/bin/env python3 -u | |
import json | |
import fileinput | |
class Terminal(object): | |
FG_RED = "\033[31m" | |
FG_YELLOW = "\033[33m" | |
BOLD = "\033[1m" | |
DIM = "\033[2m" | |
NORMAL = "\033[0m" | |
def first_key(data, keys): | |
for key in keys: | |
if key in data: | |
return data[key] | |
def message_color(level): | |
if level.upper().startswith('E'): | |
return Terminal.FG_RED | |
elif level.upper().startswith('W'): | |
return Terminal.FG_YELLOW | |
return '' | |
jsondata = None | |
for line in fileinput.input(): | |
if line.startswith("{"): | |
jsondata = line | |
elif jsondata is not None: | |
jsondata += line | |
if line.strip().endswith("}"): | |
data = json.loads(jsondata) | |
timestamp = first_key(data, ["@timestamp", '@timestamp', 't', 'ts']) | |
level = first_key(data, ['level', 's']) | |
print(Terminal.DIM, timestamp, Terminal.NORMAL, message_color(level), first_key(data, ["message", "msg"]), Terminal.NORMAL) | |
if "stack_trace" in data: | |
print(data["stack_trace"]) | |
if "stacktrace" in data: | |
for line in data["stacktrace"]: | |
print("\t", line) | |
jsondata = None | |
elif jsondata is None: | |
print(line, end='') | |
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