def create_context(cls, name, orchestrator=None, host=None, tls_cfg=None, default_namespace=None, skip_tls_verify=False): """Creates a new context. Returns: (Context): a Context object. Raises: :py:class:`docker.errors.MissingContextParameter` If a context name is not provided. :py:class:`docker.errors.ContextAlreadyExists` If a context with the name already exists. :py:class:`docker.errors.ContextException` If name is default. Example: >>> from docker.context import ContextAPI >>> ctx = ContextAPI.create_context(name='tests') >>> print(ctx.Metadata) { "Name": "tests", "Metadata": {}, "Endpoints": { "docker": { "Host": "unix:///var/run/docker.sock", "SkipTLSVerify": false } } } """ if not name: raise errors.MissingContextParameter("name") if name == "default": raise errors.ContextException( '"default" is a reserved context name') ctx = Context.load_context(name) if ctx: raise errors.ContextAlreadyExists(name) endpoint = "docker" if orchestrator and orchestrator != "swarm": endpoint = orchestrator ctx = Context(name, orchestrator) ctx.set_endpoint(endpoint, host, tls_cfg, skip_tls_verify=skip_tls_verify, def_namespace=default_namespace) ctx.save() return ctx
class ContextAPI(object): """Context API. Contains methods for context management: create, list, remove, get, inspect. """ DEFAULT_CONTEXT = Context("default", "swarm") @classmethod def create_context(cls, name, orchestrator=None, host=None, tls_cfg=None, default_namespace=None, skip_tls_verify=False): """Creates a new context. Returns: (Context): a Context object. Raises: :py:class:`docker.errors.MissingContextParameter` If a context name is not provided. :py:class:`docker.errors.ContextAlreadyExists` If a context with the name already exists. :py:class:`docker.errors.ContextException` If name is default. Example: >>> from docker.context import ContextAPI >>> ctx = ContextAPI.create_context(name='tests') >>> print(ctx.Metadata) { "Name": "tests", "Metadata": {}, "Endpoints": { "docker": { "Host": "unix:///var/run/docker.sock", "SkipTLSVerify": false } } } """ if not name: raise errors.MissingContextParameter("name") if name == "default": raise errors.ContextException( '"default" is a reserved context name') ctx = Context.load_context(name) if ctx: raise errors.ContextAlreadyExists(name) endpoint = "docker" if orchestrator and orchestrator != "swarm": endpoint = orchestrator ctx = Context(name, orchestrator) ctx.set_endpoint(endpoint, host, tls_cfg, skip_tls_verify=skip_tls_verify, def_namespace=default_namespace) ctx.save() return ctx @classmethod def get_context(cls, name=None): """Retrieves a context object. Args: name (str): The name of the context Example: >>> from docker.context import ContextAPI >>> ctx = ContextAPI.get_context(name='tests') >>> print(ctx.Metadata) { "Name": "tests", "Metadata": {}, "Endpoints": { "docker": { "Host": "unix:///var/run/docker.sock", "SkipTLSVerify": false } } } """ if not name: name = get_current_context_name() if name == "default": return cls.DEFAULT_CONTEXT return Context.load_context(name) @classmethod def contexts(cls): """Context list. Returns: (Context): List of context objects. Raises: :py:class:`docker.errors.APIError` If the server returns an error. """ names = [] for dirname, dirnames, fnames in os.walk(get_meta_dir()): for filename in fnames + dirnames: if filename == METAFILE: try: data = json.load( open(os.path.join(dirname, filename), "r")) names.append(data["Name"]) except Exception as e: raise errors.ContextException( "Failed to load metafile {}: {}".format( filename, e)) contexts = [cls.DEFAULT_CONTEXT] for name in names: contexts.append(Context.load_context(name)) return contexts @classmethod def get_current_context(cls): """Get current context. Returns: (Context): current context object. """ return cls.get_context() @classmethod def set_current_context(cls, name="default"): ctx = cls.get_context(name) if not ctx: raise errors.ContextNotFound(name) err = write_context_name_to_docker_config(name) if err: raise errors.ContextException( 'Failed to set current context: {}'.format(err)) @classmethod def remove_context(cls, name): """Remove a context. Similar to the ``docker context rm`` command. Args: name (str): The name of the context Raises: :py:class:`docker.errors.MissingContextParameter` If a context name is not provided. :py:class:`docker.errors.ContextNotFound` If a context with the name does not exist. :py:class:`docker.errors.ContextException` If name is default. Example: >>> from docker.context import ContextAPI >>> ContextAPI.remove_context(name='tests') >>> """ if not name: raise errors.MissingContextParameter("name") if name == "default": raise errors.ContextException( 'context "default" cannot be removed') ctx = Context.load_context(name) if not ctx: raise errors.ContextNotFound(name) if name == get_current_context_name(): write_context_name_to_docker_config(None) ctx.remove() @classmethod def inspect_context(cls, name="default"): """Remove a context. Similar to the ``docker context inspect`` command. Args: name (str): The name of the context Raises: :py:class:`docker.errors.MissingContextParameter` If a context name is not provided. :py:class:`docker.errors.ContextNotFound` If a context with the name does not exist. Example: >>> from docker.context import ContextAPI >>> ContextAPI.remove_context(name='tests') >>> """ if not name: raise errors.MissingContextParameter("name") if name == "default": return cls.DEFAULT_CONTEXT() ctx = Context.load_context(name) if not ctx: raise errors.ContextNotFound(name) return ctx()
def test_url_compatibility_on_windows(self): c = Context("test") assert c.Host == DEFAULT_NPIPE
def test_https_host(self): c = Context("test", host="tcp://testdomain:8080", tls=True) assert c.Host == "https://testdomain:8080"
def test_url_compatibility_on_linux(self): c = Context("test") assert c.Host == DEFAULT_UNIX_SOCKET.strip("http+")