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Added draft for performance optimation
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46
roles/storage/files/optimize.py
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46
roles/storage/files/optimize.py
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import subprocess
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import os
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import shutil
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def run_command(command):
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""" Run a shell command and return its output """
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return subprocess.check_output(command, shell=True).decode('utf-8').strip()
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# Path on the SSD where data will be moved
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ssd_path = "/path/to/ssd"
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# List all Docker volumes
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volumes = run_command("docker volume ls -q").splitlines()
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for volume in volumes:
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# List all containers using this volume
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containers = run_command(f"docker ps -q --filter volume={volume}").splitlines()
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for container in containers:
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# Get the image of the container
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image = run_command(f"docker inspect --format='{{{{.Config.Image}}}}' {container}")
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# Check if the image contains "postgres" or "mariadb"
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if "postgres" in image or "mariadb" in image:
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print(f"Container {container} with database image {image} found, using volume {volume}.")
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# Stop the container
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run_command(f"docker stop {container}")
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# Get the mount point of the volume
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volume_path = run_command(f"docker volume inspect --format '{{{{ .Mountpoint }}}}' {volume}")
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# Create a new directory on the SSD
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ssd_volume_path = os.path.join(ssd_path, volume)
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os.makedirs(ssd_volume_path, exist_ok=True)
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# Move the data
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for item in os.listdir(volume_path):
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shutil.move(os.path.join(volume_path, item), ssd_volume_path)
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# Create a symbolic link
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os.symlink(ssd_volume_path, volume_path)
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else:
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print(f"Container {container} with file image {image} found, using volume {volume}.")
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print("Operation completed.")
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