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This script runs a liveness check on the configured conductor hostname and will fail if the conductor is not online. Its intended purpose is to be used as a kubernetes pod startup or liveness probe for the conductor container. Change-Id: I88288e0d7a1da4ec99f31c20771299cce2499bf0 Signed-off-by: Steve Baker <sbaker@redhat.com>
57 lines
No EOL
1.7 KiB
Python
Executable file
57 lines
No EOL
1.7 KiB
Python
Executable file
#!/bin/env python3
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#
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# Copyright 2025 Red Hat Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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# This script runs a liveness check on the configured conductor hostname
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# and will fail if the conductor is not online. Its intended purpose is to
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# be used as a kubernetes pod startup or liveness probe for the conductor
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# container.
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from ironic.common import config
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from ironic.common import exception
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import ironic.conf
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CONF = ironic.conf.CONF
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config.parse_args([])
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from ironic.db.sqlalchemy import api
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import sys
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def main():
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dbapi = api.get_backend()
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# Attempt a database query
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try:
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conductors = dbapi.get_online_conductors()
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except Exception as e:
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print(f"Error querying database for online conductors: {e}",
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file=sys.stderr)
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sys.exit(1)
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# Check if host is online
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if CONF.host in conductors:
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print(f"{CONF.host} is online", file=sys.stderr)
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sys.exit(0)
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# Check why host is offline (old heartbeat vs no heartbeat)
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try:
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dbapi.get_conductor(CONF.host)
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print(f"{CONF.host} stopped sending heartbeats", file=sys.stderr)
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except exception.ConductorNotFound as e:
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print(f"{CONF.host} is offline", file=sys.stderr)
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sys.exit(1)
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if __name__ == "__main__":
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main() |