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https://github.com/outbackdingo/patroni.git
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3fe2a7868a
* Ignore D401 in flake8-docstrings * Fix newly reported flake8 issues, ignore the old W503 rule * rely on concatenation of adjecent strings * Format behave scripts * Reformat ha.py according to new rules Co-authored-by: Alexander Kukushkin <[email protected]>
70 lines
2.5 KiB
Python
70 lines
2.5 KiB
Python
import os
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import time
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from behave import step
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def callbacks(context, name):
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return {c: '{0} features/callback2.py {1}'.format(context.pctl.PYTHON, name)
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for c in ('on_start', 'on_stop', 'on_restart', 'on_role_change')}
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@step('I start {name:w} in a cluster {cluster_name:w}')
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def start_patroni(context, name, cluster_name):
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return context.pctl.start(name, custom_config={
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"scope": cluster_name,
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"postgresql": {
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"callbacks": callbacks(context, name),
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"backup_restore": {
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"command": (context.pctl.PYTHON + " features/backup_restore.py --sourcedir="
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+ os.path.join(context.pctl.patroni_path, 'data', 'basebackup').replace('\\', '/'))}
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}
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})
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@step('I start {name:w} in a standby cluster {cluster_name:w} as a clone of {name2:w}')
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def start_patroni_standby_cluster(context, name, cluster_name, name2):
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# we need to remove patroni.dynamic.json in order to "bootstrap" standby cluster with existing PGDATA
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os.unlink(os.path.join(context.pctl._processes[name]._data_dir, 'patroni.dynamic.json'))
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port = context.pctl._processes[name2]._connkwargs.get('port')
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context.pctl._processes[name].update_config({
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"scope": cluster_name,
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"bootstrap": {
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"dcs": {
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"ttl": 20,
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"loop_wait": 2,
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"retry_timeout": 5,
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"standby_cluster": {
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"host": "localhost",
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"port": port,
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"primary_slot_name": "pm_1",
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"create_replica_methods": ["backup_restore", "basebackup"]
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},
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"postgresql": {"parameters": {"wal_level": "logical"}}
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}
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},
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"postgresql": {
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"callbacks": callbacks(context, name)
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}
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})
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return context.pctl.start(name)
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@step('{pg_name1:w} is replicating from {pg_name2:w} after {timeout:d} seconds')
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def check_replication_status(context, pg_name1, pg_name2, timeout):
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bound_time = time.time() + timeout * context.timeout_multiplier
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while time.time() < bound_time:
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cur = context.pctl.query(
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pg_name2,
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"SELECT * FROM pg_catalog.pg_stat_replication WHERE application_name = '{0}'".format(pg_name1),
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fail_ok=True
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)
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if cur and len(cur.fetchall()) != 0:
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break
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time.sleep(1)
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else:
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assert False, "{0} is not replicating from {1} after {2} seconds".format(pg_name1, pg_name2, timeout)
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