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fix: improve hostname validation error messages with allowed characters

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When a hostname validation fails, the error message now includes
the allowed character set to help users provide valid names.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
YueGuobin 2026-05-02 12:52:33 +08:00
parent f0ef65b8e8
commit ba220780a9
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4 changed files with 4 additions and 4 deletions
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2
gns3server/compute/docker/docker_vm.py
View File

@ -188,7 +188,7 @@ class DockerVM(BaseNode):
"""
if not is_rfc1123_hostname_valid(new_name):
raise DockerError(f"'{new_name}' is an invalid name to rename Docker container '{self._name}'")
raise DockerError(f"'{new_name}' is an invalid name to rename Docker container '{self._name}'. Allowed characters: letters (a-z, A-Z), digits (0-9), and hyphens (-). The name cannot start or end with a hyphen.")
super(DockerVM, DockerVM).name.__set__(self, new_name)
@property

2
gns3server/compute/dynamips/nodes/router.py
View File

@ -1682,7 +1682,7 @@ class Router(BaseNode):
"""
if not is_ios_hostname_valid(new_name):
raise DynamipsError(f"{new_name} is an invalid name to rename router '{self._name}'")
raise DynamipsError(f"{new_name} is an invalid name to rename router '{self._name}'. Allowed characters: letters (a-z, A-Z), digits (0-9), and hyphens (-). The name must start with a letter, end with a letter or digit, and be 63 characters or fewer.")
await self._hypervisor.send(f'vm rename "{self._name}" "{new_name}"')

2
gns3server/compute/iou/iou_vm.py
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@ -367,7 +367,7 @@ class IOUVM(BaseNode):
"""
if not is_ios_hostname_valid(new_name):
raise IOUError(f"'{new_name}' is an invalid name to rename IOU node '{self._name}'")
raise IOUError(f"'{new_name}' is an invalid name to rename IOU node '{self._name}'. Allowed characters: letters (a-z, A-Z), digits (0-9), and hyphens (-). The name must start with a letter, end with a letter or digit, and be 63 characters or fewer.")
if self.startup_config_file:
content = self.startup_config_content
content = re.sub(r"hostname .+$", "hostname " + new_name, content, flags=re.MULTILINE)

2
gns3server/compute/qemu/qemu_vm.py
View File

@ -197,7 +197,7 @@ class QemuVM(BaseNode):
"""
if not is_rfc1123_hostname_valid(new_name):
raise QemuError(f"'{new_name}' is an invalid name to rename Qemu node '{self._name}'")
raise QemuError(f"'{new_name}' is an invalid name to rename Qemu node '{self._name}'. Allowed characters: letters (a-z, A-Z), digits (0-9), and hyphens (-). The name cannot start or end with a hyphen.")
super(QemuVM, QemuVM).name.__set__(self, new_name)
@property