furnace/cli.py: add command line interface to furnace #5
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kocsob
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furnace/utils.py
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| @@ -69,10 +69,12 @@ def __init__(self, source, destination, read_only=False): | |||
| self.read_only = read_only | |||
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| def get_mount_parameters(self): | |||
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is get_mount_parameters unused now? Maybe it would need to be called from mount() below?
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Is this commit related to the CLI related PR?
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is get_mount_parameters unused now?
No, it is called by the base MountContext, which uses this parameters. There is an unfortunate situation, that for the read-only bind mount requires two mount system call.
| if args.persistent: | ||
| run_container(args.root_dir, args.volume, args.isolate_networking, args.hostname, args.cmd) | ||
| else: | ||
| with tempfile.TemporaryDirectory( |
furnace/utils.py
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| @@ -69,10 +69,12 @@ def __init__(self, source, destination, read_only=False): | |||
| self.read_only = read_only | |||
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| def get_mount_parameters(self): | |||
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furnace/cli.py
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| if readwrite == 'rw': | ||
| readonly = False | ||
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| if destination.startswith('/'): |
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I would "cast" destination to a Path object sooner, so destination.is_absolute() could be called here, which is more meaningful.
furnace/cli.py
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| return parser.parse_args(argv[1:]) | ||
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| def create_bind_mount_list(volumes): |
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A unit test would be nice for this function.
furnace/cli.py
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| return parser.parse_args(argv[1:]) | ||
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| def create_bind_mount_list(volumes): |
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It would be more user-friendly if this method would raise a meaningful error message in case of invalid values, and should be more strict if
E.g. it silently ignores "/host/path:/container/path:asdf" and makes the mount read-only, but raises ValueError for "/host/path" It should say something specific about the problem with this parameter and exit non-zero without a traceback.
furnace/cli.py
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| help="this command that will be run. If it is empty, than furnace will give an interactive shell" | ||
| ) | ||
| parser.add_argument( | ||
| '--version', |
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-V is common for linux tools for version alias
furnace/cli.py
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| parser.add_argument( | ||
| 'cmd', | ||
| nargs='*', | ||
| help="this command that will be run. If it is empty, than furnace will give an interactive shell" |
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I would reprase this a bit: "the command that will be run. If empty, furnace will drop into an interactive shell"
furnace/cli.py
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| version='%(prog)s {version}'.format(version=version.get_version()), | ||
| ) | ||
| parser.add_argument( | ||
| '--hostname', |
furnace/cli.py
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| parser.add_argument( | ||
| '-v', '--volume', | ||
| action='append', | ||
| metavar='src:dst:rw', |
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I would add the dest parameter here (e.g. volumes), because it's confusing later that args.volume contains a list, not a single value.
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This pull request introduces 1 alert when merging ab71880 into 309bd07 - view on LGTM.com new alerts:
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