Major improvements in error handling, & small fix
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askiiart
parent
16632f933b
commit
1e05dd2cd6
1 changed files with 38 additions and 16 deletions
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@ -2,9 +2,11 @@ from subprocess import getoutput, getstatusoutput
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import pprint
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import os
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class NoContainersError(Exception):
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pass
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class Docker:
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@staticmethod
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def running_containers_info():
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@ -14,12 +16,13 @@ class Docker:
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"""
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raw_info = getoutput('docker ps')
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if '\n' not in raw_info:
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raise(NoContainersError('A running Docker container is required to run this program. Please run a docker container and try again.'))
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raise (NoContainersError(
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'A running Docker container is required to run this program. Please run a docker container and try again.'))
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# Header: "CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES" (with way more spaces)
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header = raw_info[:raw_info.find('\n')+1]
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header_indices = {'CONTAINER ID': header.find('CONTAINER ID'), 'IMAGE': header.find('IMAGE'),
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'COMMAND': header.find('COMMAND'), 'CREATED': header.find('CREATED'), 'STATUS': header.find('STATUS'),
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'PORTS': header.find('PORTS'), 'NAMES': header.find('NAMES')}
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'COMMAND': header.find('COMMAND'), 'CREATED': header.find('CREATED'), 'STATUS': header.find('STATUS'),
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'PORTS': header.find('PORTS'), 'NAMES': header.find('NAMES')}
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# Remove header (example above)
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raw_info = raw_info[raw_info.find('\n')+1:]
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@ -44,8 +47,7 @@ class Docker:
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raw_info.split('\n')[i][start_i:end_i].strip()
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return info
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@staticmethod
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def containers():
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"""
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@ -54,7 +56,8 @@ class Docker:
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"""
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raw_info = getoutput('docker container list')
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if '\n' not in raw_info:
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raise(NoContainersError('A Docker container is required to run this program. Please create a docker container and try again.'))
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raise (NoContainersError(
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'A Docker container is required to run this program. Please create a docker container and try again.'))
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# Remove header
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raw_info = raw_info[raw_info.find('\n')+1:]
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info = {}
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@ -63,9 +66,9 @@ class Docker:
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containers = []
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for line in raw_info.split('\n'):
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containers.append(line.strip()[line.strip().rfind(' ')+1:])
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return containers
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@staticmethod
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def all_containers_info():
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"""
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@ -74,12 +77,13 @@ class Docker:
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"""
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raw_info = getoutput('docker ps -a')
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if '\n' not in raw_info:
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raise(NoContainersError('A Docker container is required to run this program. Please create a docker container and try again.'))
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raise (NoContainersError(
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'A Docker container is required to run this program. Please create a docker container and try again.'))
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# Header: "CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES" (with way more spaces)
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header = raw_info[:raw_info.find('\n')+1]
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header_indices = {'CONTAINER ID': header.find('CONTAINER ID'), 'IMAGE': header.find('IMAGE'),
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'COMMAND': header.find('COMMAND'), 'CREATED': header.find('CREATED'), 'STATUS': header.find('STATUS'),
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'PORTS': header.find('PORTS'), 'NAMES': header.find('NAMES')}
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'COMMAND': header.find('COMMAND'), 'CREATED': header.find('CREATED'), 'STATUS': header.find('STATUS'),
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'PORTS': header.find('PORTS'), 'NAMES': header.find('NAMES')}
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# Remove header (example above)
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raw_info = raw_info[raw_info.find('\n')+1:]
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@ -116,7 +120,7 @@ class Docker:
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dict: The info about the container
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"""
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return Docker.all_containers_info()[container]
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@staticmethod
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def compose(dir):
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"""
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@ -129,10 +133,10 @@ class Docker:
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"""
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cwd = os.getcwd()
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os.chdir(dir)
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status = getstatusoutput('docker compose up -detach --build --remove-orphans')
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status = getstatusoutput('docker compose up --detach --build --remove-orphans')
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os.chdir(cwd)
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return status
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@staticmethod
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def start(container):
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"""
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@ -144,7 +148,7 @@ class Docker:
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int: The exit code of docker start
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"""
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return getstatusoutput(f'docker start {container}')[0]
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@staticmethod
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def stop(container):
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"""
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@ -156,7 +160,7 @@ class Docker:
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int: The exit code of docker stop
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"""
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return getstatusoutput(f'docker stop {container}')[0]
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@staticmethod
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def rm(container):
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"""
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@ -169,6 +173,24 @@ class Docker:
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"""
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return getstatusoutput(f'docker rm {container}')[0]
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@staticmethod
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def containers_exist():
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"""
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Checks if any containers exist
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:returns:
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bool: True if containers exist, False otherwise
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"""
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return True if '\n' in getoutput('docker ps -a') else False
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def aliens_exist():
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"""
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Checks if aliens exist
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:returns:
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bool: Up all night long; And there's something very wrong
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"""
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return True if 'blink-182' in 'your playlist' else False
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if __name__ == '__main__':
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try:
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