49 lines
1.7 KiB
Python
49 lines
1.7 KiB
Python
import os
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import logging
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logger = logging.getLogger(__name__)
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class DockerUtil:
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def __init__(self):
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pass
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def is_in_docker(self) -> bool:
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"""Check if we're running inside a Docker container using multiple methods"""
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# Method 1: Check cgroup
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try:
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with open('/proc/1/cgroup', 'r') as f:
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content = f.read().lower()
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if any(container_id in content for container_id in ['docker', 'containerd', 'kubepods']):
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logger.debug("Docker detected via cgroup")
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return True
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except Exception as e:
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logger.debug(f"Could not read cgroup file: {e}")
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# Method 2: Check /.dockerenv file
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if os.path.exists('/.dockerenv'):
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logger.debug("Docker detected via /.dockerenv file")
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return True
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# Method 3: Check environment variables
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docker_env = any(os.environ.get(var, False) for var in [
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'DOCKER_CONTAINER',
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'IN_DOCKER',
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'KUBERNETES_SERVICE_HOST', # For k8s
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'DOCKER_HOST'
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])
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if docker_env:
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logger.debug("Docker detected via environment variables")
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return True
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# Method 4: Check container runtime
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try:
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with open('/proc/self/mountinfo', 'r') as f:
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content = f.read().lower()
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if any(rt in content for rt in ['docker', 'containerd', 'kubernetes']):
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logger.debug("Docker detected via mountinfo")
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return True
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except Exception as e:
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logger.debug(f"Could not read mountinfo: {e}")
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logger.debug("No Docker environment detected")
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return False |