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Add dry run setting #28

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Add dry run setting #28

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1 change: 1 addition & 0 deletions config.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@ parameters:
lxc_migration: OFF # Container migration (LXCs are rebooted during migration!!!)
migration_timeout: 1000 # For the future
only_on_master: OFF # Only run PLB on the current cluster master
dry_run: OFF # Dry run (don't balance)

# List of exclusions
exclusions:
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5 changes: 5 additions & 0 deletions plb.py
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Expand Up @@ -32,6 +32,7 @@
LXC_MIGRATION = cfg["parameters"]["lxc_migration"]
MIGRATION_TIMEOUT = cfg["parameters"]["migration_timeout"]
ONLY_ON_MASTER = cfg["parameters"].get("only_on_master", False)
DRY_RUN = cfg["parameters"]["dry_run"]

"""Exclusions"""
excluded_vms = []
Expand Down Expand Up @@ -372,6 +373,10 @@ def vm_migration(variants: list, cluster_obj: object) -> None:
sys.exit(1)
donor, recipient, vm = variant[:3]
logger.debug(f'VM:{vm} migration from {donor} to {recipient}')
if DRY_RUN:
logger.info('DRY RUN, stop here.')
break

if vm in cluster_obj.cl_lxcs:
options = {'target': recipient, 'restart': 1}
url = f'{cluster_obj.server}/api2/json/nodes/{donor}/lxc/{vm}/migrate'
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