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#!/usr/bin/env python3
# Copyright (C) 2019-2024 Algorand, Inc.
# This file is part of go-algorand
#
# go-algorand is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# go-algorand is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
#
###
#
# Capture block headers every round from a running `algod`
# Talk to a set of relays found in a terraform-inventory.host file.
#
# pip install py-algorand-sdk
import argparse
import atexit
import configparser
import logging
import os
import re
import signal
import sys
import threading
import block_history
logger = logging.getLogger(__name__)
graceful_stop = False
fetchers = []
def do_graceful_stop(signum, frame):
global fetchers
global graceful_stop
if graceful_stop:
sys.stderr.write("second signal, quitting\n")
sys.exit(1)
sys.stderr.write("graceful stop...\n")
graceful_stop = True
for fet in fetchers:
fet.go = False
relay_pat = re.compile(r'name_r\d+')
def main():
ap = argparse.ArgumentParser()
ap.add_argument('--tf-inventory', default='terraform-inventory.host', help='terraform inventory file to use if no data_dirs specified')
ap.add_argument('--all', default=False, action='store_true')
ap.add_argument('-p', '--port', default='8580', help='algod port on each host in terraform-inventory')
ap.add_argument('--pid')
ap.add_argument('--token', default='', help='default algod api token to use')
ap.add_argument('--outdir', required=True)
ap.add_argument('--all-rounds', default=False, action='store_true', help='fetch all blocks from 0')
ap.add_argument('--verbose', default=False, action='store_true')
args = ap.parse_args()
if args.verbose:
logging.basicConfig(level=logging.DEBUG)
else:
logging.basicConfig(level=logging.INFO)
if args.pid:
with open(args.pid, 'w') as fout:
fout.write('{}'.format(os.getpid()))
atexit.register(os.remove, args.pid)
prev_round = None
if args.all_rounds:
prev_round = -1
signal.signal(signal.SIGTERM, do_graceful_stop)
signal.signal(signal.SIGINT, do_graceful_stop)
threads = []
cp = configparser.ConfigParser(allow_no_value=True)
cp.read(args.tf_inventory)
for k,v in cp.items():
if not relay_pat.match(k):
continue
if args.all:
pass
elif k.endswith('1'):
pass
else:
continue
for net in v.keys():
addr = 'http://' + net + ':' + args.port
outpath = os.path.join(args.outdir, k + '_' + net + '.blockhistory')
fet = block_history.Fetcher(addr=addr, token=args.token, outpath=outpath, prev_round=prev_round)
t = threading.Thread(target=fet.loop)
logger.debug('starting %s -> %s', addr, outpath)
t.start()
threads.append(t)
fetchers.append(fet)
for t in threads:
t.join()
logger.debug('block_history_relays.py done')
if __name__ == '__main__':
main()
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