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Get swarm nodes + robust fallback

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Einar Forselv
2020-03-08 18:36:07 +01:00
parent 13d8e07a33
commit 07a19f7f42
1 changed files with 12 additions and 0 deletions
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12
src/restic_compose_backup/utils.py
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@@ -37,6 +37,18 @@ def list_containers() -> List[dict]:
return [c.attrs for c in all_containers] return [c.attrs for c in all_containers]
def get_swarm_nodes():
client = docker_client()
# NOTE: If not a swarm node docker.errors.APIError is raised
# 503 Server Error: Service Unavailable
# ("This node is not a swarm manager. Use "docker swarm init" or
# "docker swarm join" to connect this node to swarm and try again.")
try:
return client.nodes.list()
except docker.errors.APIError:
return []
def remove_containers(containers: List['Container']): def remove_containers(containers: List['Container']):
client = docker_client() client = docker_client()
logger.info('Attempting to delete stale backup process containers') logger.info('Attempting to delete stale backup process containers')