Bruno Charest
984d06a223
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87 lines
2.5 KiB
Python
87 lines
2.5 KiB
Python
"""Add unique constraints to Docker tables.
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Revision ID: 0012
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Revises: 0011
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Create Date: 2025-12-15
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"""
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from typing import Sequence, Union
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from alembic import op
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import sqlalchemy as sa
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# revision identifiers, used by Alembic.
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revision: str = '0012'
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down_revision: Union[str, None] = '0011_add_docker_management_tables'
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def upgrade() -> None:
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"""Add unique constraints to Docker tables to prevent duplicates."""
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# First, clean up any existing duplicates before adding constraints
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# For docker_containers: keep only the most recent entry per (host_id, container_id)
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op.execute("""
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DELETE FROM docker_containers
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WHERE id NOT IN (
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SELECT id FROM (
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SELECT MAX(id) AS id FROM docker_containers
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GROUP BY host_id, container_id
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) AS tmp
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)
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""")
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# For docker_images: keep only the most recent entry per (host_id, image_id)
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op.execute("""
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DELETE FROM docker_images
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WHERE id NOT IN (
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SELECT id FROM (
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SELECT MAX(id) AS id FROM docker_images
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GROUP BY host_id, image_id
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) AS tmp
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)
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""")
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# For docker_volumes: keep only the most recent entry per (host_id, name)
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op.execute("""
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DELETE FROM docker_volumes
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WHERE id NOT IN (
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SELECT id FROM (
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SELECT MAX(id) AS id FROM docker_volumes
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GROUP BY host_id, name
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) AS tmp
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)
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""")
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# Now add unique constraints
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# Note: SQLite doesn't support adding constraints directly, so we use CREATE UNIQUE INDEX
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op.create_index(
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'uq_docker_containers_host_container',
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'docker_containers',
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['host_id', 'container_id'],
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unique=True
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)
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op.create_index(
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'uq_docker_images_host_image',
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'docker_images',
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['host_id', 'image_id'],
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unique=True
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)
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op.create_index(
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'uq_docker_volumes_host_name',
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'docker_volumes',
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['host_id', 'name'],
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unique=True
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)
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def downgrade() -> None:
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"""Remove unique constraints from Docker tables."""
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op.drop_index('uq_docker_containers_host_container', table_name='docker_containers')
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op.drop_index('uq_docker_images_host_image', table_name='docker_images')
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op.drop_index('uq_docker_volumes_host_name', table_name='docker_volumes')
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