179 lines
6.5 KiB
Python
Executable File
179 lines
6.5 KiB
Python
Executable File
#!/usr/bin/python3
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import yaml
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import subprocess
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import re
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from datetime import datetime, timedelta
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from zoneinfo import ZoneInfo
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# these ports are nat'd on the modem to mara, so if a container is in host mode
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# on one of these ports, or maps these potrs, then that container is internet-facing
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PORT_FWDS=[ '7777', '7778', '27015', '993', '25', '465', '587' ]
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# see if this container either has a matching port to the list of open ports on the modem (PORT_FWDS)
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# or if traefik is front-ending this, and the rule includes a Host that has depaoli.id.au on it
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# if the above are true, its internet-facing, and a higher risk, so worth knowing
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def external(container):
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if 'network_mode' in compose['services'][container]:
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return "Maybe"
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if 'ports' in compose['services'][container]:
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for port in PORT_FWDS:
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if any(port in substring for substring in compose['services'][container]['ports']):
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return True
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if 'labels' not in compose['services'][container]:
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return False
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traefik_on=False
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ext_host=False
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for s in compose['services'][container]['labels']:
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if 'traefik.enable=true' in s:
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if 'true' in s:
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traefik_on=True
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m=re.search( r"traefik.\S+.routers.\S+.rule=\s*Host\S+\(\`(.*)\`\)", s )
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if m and 'depaoli.id.au' in m[1]:
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ext_host=True
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if traefik_on and ext_host:
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return True
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else:
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return False
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def watchtower(container):
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if 'labels' not in compose['services'][container]:
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return False
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for s in compose['services'][container]['labels']:
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if 'watchtower' in s:
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if 'true' in s:
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return True
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return False
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# take a dt_str like 2020-12-10T09:21:12+11:00 and convert into a datetime
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# then work out how many hours extra the timezone (will be 10 or 11)
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# then remove the +TZ, and then add it as actual hours
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# this seems mad that there is no func for this, but it works
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def norm_time(dt_str):
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d=datetime.strptime(dt_str, '%Y-%m-%dT%H:%M:%S%z')
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return d.replace(tzinfo=None)
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def norm_time_git(dt_str):
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d=datetime.strptime(dt_str, '%Y-%m-%d %H:%M:%S %z')
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return d.replace(tzinfo=None)
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# Load the docker-compose.yaml file
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with open('/srv/docker/config/docker-compose.yml') as f:
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compose = yaml.safe_load(f)
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# Get the container names from the docker-compose.yaml file
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containers = [service_name for service_name in compose['services'].keys()]
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# Load the update-docker.log file
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with open('/srv/docker/log/update-docker.log') as f:
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logs = f.readlines()
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# Find the last log line for each container
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last_logs = {}
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for container in containers:
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last_log = None
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for log in logs:
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if 'image' in compose['services'][container]:
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im=compose['services'][container]['image']
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else:
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im=''
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if im != "" and im in log:
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last_log = log
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last_logs[container] = last_log
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current_datetime = datetime.now()
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# open file for writing prometheus formatted data into
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f = open('/srv/docker/container/node-exporter/textfile_collector/docker_updates.prom', 'w')
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# put required help/type text in
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print('# HELP node_docker_updates details of last known update of a container, whether it has a locked version (or latest tag) and whether watchtower is updating it', file=f)
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print('# TYPE node_docker_updates gauge', file=f )
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# Print the last log line and container name for each container
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for container, last_log in last_logs.items():
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out_str= 'node_docker_updates{container="'
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out_str += container
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out_str += '", watchtower='
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if watchtower( container ):
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out_str += '"yes"'
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else:
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out_str += '"no"'
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if 'image' in compose['services'][container]:
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im=compose['services'][container]['image']
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else:
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im=''
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out_str +=', latest_tag='
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if ':' in im and ':latest' not in im and ':nightly' not in im:
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out_str += '"no"'
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else:
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out_str += '"yes"'
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is_built=0
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out_str += ', image="'
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if 'image' in compose['services'][container]:
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out_str += compose['services'][container]['image']
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else:
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out_str += 'Built'
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is_built=1
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out_str += '"'
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if last_log:
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dt_str=last_log.split()[0].split('=')[1].replace('"','')
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last_update=f'{norm_time(dt_str)}'
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else:
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if 'image' in compose['services'][container]:
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res=subprocess.run(['sudo','docker','image','history','--human=false',compose['services'][container]['image']], stdout=subprocess.PIPE)
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if res.returncode == 0:
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m=re.search(r'(\d{1,4}-\d{1,2}-\d{1,2}T\d{1,2}:\d{1,2}:\d{1,2}\+\d{1,2}:\d{1,2})', str(res.stdout, 'utf-8') )
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if '0001-01-01' in m[1]:
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m=re.findall( r'(\d{1,4}-\d{1,2}-\d{1,2}T\d{1,2}:\d{1,2}:\d{1,2})', str(res.stdout, 'utf-8') )
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cdate=norm_time( m[1] + '+10:00')
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else:
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cdate=norm_time( m[1] )
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last_update=cdate
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else:
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last_update='No Date'
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else:
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res=subprocess.run(['sudo','docker','history','--human=false',f'config_{container}'], stdout=subprocess.PIPE)
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if res.returncode == 0:
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m=re.search(r'(\d{1,4}-\d{1,2}-\d{1,2}T\d{1,2}:\d{1,2}:\d{1,2}\+\d{1,2}:\d{1,2})', str(res.stdout, 'utf-8') )
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cdate=norm_time( m[1] )
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last_update=cdate
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else:
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last_update='No Date'
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# if is_built and 'book' in container:
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# res=subprocess.run(['git', '-C', '/home/ddp/src/pybook/', 'log', '--date=iso', '-n', '1', '--pretty=%ci'], stdout=subprocess.PIPE)
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# last_update=norm_time_git( str(res.stdout, 'utf-8').strip() )
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#
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# if is_built and 'pa' in container:
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# res=subprocess.run(['git', '-C', '/home/ddp/src/photoassistant/', 'log', '--date=iso', '-n', '1', '--pretty=%ci'], stdout=subprocess.PIPE)
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# last_update=norm_time_git( str(res.stdout, 'utf-8').strip() )
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if last_update == 'No Date':
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out_str += f', age_in_days="99999"'
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else:
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if type(last_update) == type(current_datetime):
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last_update_as_datetime = last_update
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else:
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last_update_as_datetime = datetime.strptime( last_update, '%Y-%m-%d %H:%M:%S' )
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time_difference = current_datetime - last_update_as_datetime
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out_str += f', age_in_days="{time_difference.days}"'
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out_str += f', last_update="{last_update}"'
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out_str += f', internet_facing="{external(container)}"'
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out_str += '} 1'
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print( out_str, file=f )
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f.close()
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