CN113312149A - Password resetting method - Google Patents
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- CN113312149A CN113312149A CN202110677782.2A CN202110677782A CN113312149A CN 113312149 A CN113312149 A CN 113312149A CN 202110677782 A CN202110677782 A CN 202110677782A CN 113312149 A CN113312149 A CN 113312149A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/45—Structures or tools for the administration of authentication
- G06F21/46—Structures or tools for the administration of authentication by designing passwords or checking the strength of passwords
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
- G06F2009/45575—Starting, stopping, suspending or resuming virtual machine instances
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
- G06F2009/45587—Isolation or security of virtual machine instances
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Abstract
The invention relates to the field of IAAS (integrated access service), in particular to a password resetting method, which is characterized in that a unique identifier and encrypted password metadata information are added to a created virtual machine, a password resetting management module and configuration of the password resetting management module are added in a virtual machine initialization program in the virtual machine, Openstack metadata are obtained when the virtual machine is started each time, the unique identifier in the metadata is compared with the locally stored unique identifier to determine whether a password resetting task is carried out or not, and the support of an Openstack cloud platform for user password resetting of the virtual machine is realized. Compared with the prior art, the method can also modify the metadata according to the requirement when the virtual machine is not started for the first time, and reset the virtual machine password.
Description
Technical Field
The invention relates to the field of IAAS, and particularly provides a password resetting method.
Background
With the rapid development and popularization of cloud platform technology, cloud computing technology has been gradually applied in various fields, and more enterprises and public institutions and individuals migrate traditional applications to cloud data centers. Openstack is used as a mainstream open source platform in a cloud platform, and provides an IAAS layer virtual machine management function for vast users.
An adminPass mode realized by an Openstack open source community at present is combined with a Cloud-init/Cloud base-init configuration file to support a virtual machine to initialize a password of a user through a setpasswords module when the virtual machine is started for the first time. But for the restart after the virtual machine, namely the method cannot reset the password of the user when the virtual machine is not started first; for a qemu-ga being turned on in a virtual machine, it is possible to communicate with the virtual machine and modify the password, but it becomes very difficult to reset the password when the qemu-ga is not turned on by the user. Even if the execution frequency of the setpassranges module is changed to be executed in each restart, the used data source cannot necessarily obtain the latest password information, so that the actual significance is still not achieved in a real scene, and the requirement cannot be met.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a password resetting method with strong practicability.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a password resetting method is characterized in that a unique identifier and encrypted password metadata information are added to a created virtual machine, a password resetting management module and configuration of a starting password resetting management module are added to a virtual machine initialization program in the virtual machine, Openstack metadata is obtained when the virtual machine is started each time, the unique identifier in the metadata is compared with the locally stored unique identifier to determine whether a password resetting task is carried out or not, and support of an Openstack cloud platform for user password resetting of the virtual machine is achieved.
Further, the method comprises the following steps:
s1, modifying the source codes of Cloud-init and Cloud base-init, opening to obtain the metadata content of Openstack, and allowing the module to obtain the virtual machine metadata provided in the data source;
s2, compiling a module for resetting the password on the basis of open source Cloud-init and Cloud base-init software;
s3, modifying the start configuration file of the Cloud-init and the Cloud base-init software when the virtual machine mirror image is manufactured, and configuring the reset password module to be executed every time the virtual machine mirror image is started.
Further, for the Cloud-init, the specific steps are as follows:
(1) opening virtual machine metadata of an openstack data source;
(2) the module for writing the reset password;
(3) and a Cloud-init configuration change.
Further, in the step (1),
the method comprises the steps of obtaining data source, data source OpenStack and data source OpenStack, and increasing a get _ data method for calling _ get _ data, so that a module for obtaining an Openstack data source can obtain needed virtual machine metadata.
Further, in the step (2), further comprising:
(201) calling a mode of searching for a specified data source in the module, and forcibly acquiring an Openstack data source;
(202) after the Openstack data source is obtained, calling a get _ data method to obtain virtual machine metadata, and analyzing key values corresponding to task _ id and task _ password in the metadata according to key of the metadata.
(203) The Cloud-init needs to execute the record in an execution record directory access module, obtain local _ task _ id of the executed record from a local specified file, then compare the task _ id with the local _ task _ id, and if the different or local unique identifiers do not exist, the task is newly issued data, so that a user password change process needs to be executed;
if the two ids are the same, the user is not updated with the task _ id, and the password reset is not needed.
(204) And when the password is changed, decoding the password into an original password according to the user information and the task _ password acquired from the Openstack data source, and calling a local password resetting method of the virtual machine by using a tool class provided by Cloud-init to update the virtual machine password.
(205) And defining a storage position of local _ task _ id, and defining a module execution frequency (PER _ ALWAYS) so that the module can be executed each time the virtual machine is started.
Further, in step (3), the module name of the module is added to the starting configuration of the group-init, and the module name is added to the group _ final _ modules configuration set, so that password resetting can be performed at the final stage of starting and configuring the module by the virtual machine.
Further, for the Cloudbase-init, modifications
A get _ meta _ data method for calling _ get _ meta _ data is added to a cloudbaseeinit.
Further, in Cloudbase-init,
loading a class cloudbaseinit.metadata.services.httpserver.httpserver.httpserver via a class loader to an Openstack data source under cloud-init to obtain an opentack metadata service providing class;
after the Openstack metadata service is obtained, calling a get _ meta _ data method to obtain virtual machine metadata, and analyzing a task _ id in the metadata and a key value corresponding to the task _ password according to a key of the metadata;
storing data such as execution records in the cloud-init in a windows registry, calling a tool class provided by the cloud-init, and acquiring local _ task _ id of the executed records at a specified position in the registry;
and then comparing the task _ id with the local _ task _ id, and if different or local unique identifiers do not exist, indicating that the task is newly issued data, so that a user password change process needs to be executed. If the two ids are the same, the user does not update the task _ id and does not need to reset the password;
when the password is changed, decoding the password into an original password according to user information and task _ password acquired from an Openstack data source, calling a local password resetting method of the virtual machine by using a tool class provided by cloud-init, and updating the virtual machine password;
the execution frequency of the module of the Cloudbase-init is configured in the return value of the module, and the plug _ EXECUTE _ ON _ NEXT _ BOOT is returned when the execution of the module is successful, so that the module can be executed at each startup of the virtual machine.
Furthermore, the module name of the module is added to the starting configuration of the Cloudbase-init, and the configuration item plugin of Cloudbase-init. conf is added with … < module name >, and is recommended to be added to the end of the plugin, so that the password reset can be performed at the final stage of starting and configuring the module by the virtual machine.
Compared with the prior art, the password resetting method has the following outstanding advantages that:
because the qemu-ga service is required not to be installed in some scenes, or the mirror image does not store metadata required by starting the qemu-ga service, the password resetting operation of the virtual machine can be independent of the qemu-ga service, and when the virtual machine is not started for the first time, the metadata can be modified according to the requirement to reset the password of the virtual machine. This approach generally requires system reboot validation, a user-sensible action.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flow chart of a password resetting method.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments in order to better understand the technical solutions of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A preferred embodiment is given below:
as shown in fig. 1, in the password resetting method in this embodiment, a unique identifier and encrypted password metadata information are added to a created virtual machine, a password resetting management module and a configuration enabling the password resetting management module are added to a virtual machine initialization program in the virtual machine, Openstack metadata is obtained when the virtual machine is started each time, the unique identifier in the metadata is compared with a locally stored unique identifier, whether a password resetting task is performed is determined, and support of an Openstack cloud platform for user password resetting of the virtual machine is achieved.
Adding or modifying the metadata of the password virtual machine to be reset by using a Horizon, nova api, novaclent and the like, wherein the values of the following two metadata keys are added or modified: the task unique identification task _ id and the password task _ password are obtained, wherein the password is a character string coded by Base64, the value of the task unique identification is different from the set identification value, and if the identification does not exist, the value can be any value meeting the requirement of metadata.
The virtual machine can be restarted in the virtual machine or called in a hotspot interface or nova api mode, and the virtual machine can be logged in with a new password after waiting for the virtual machine to be configured with cloudinit or cloudbas-init after being started.
The technology is mainly realized by the following steps:
s1, modifying the source codes of Cloud-init and Cloud base-init, opening to obtain the metadata content of Openstack, and allowing the module to obtain the virtual machine metadata provided in the data source;
s2, compiling a module for resetting the password on the basis of open source Cloud-init and Cloud base-init software;
s3, modifying the start configuration file of the Cloud-init and the Cloud base-init software when the virtual machine mirror image is manufactured, and configuring the reset password module to be executed every time the virtual machine mirror image is started.
The method comprises the following specific steps of:
(1) and opening the openstack data source virtual machine metadata:
since the data of the Cloud-init data source is provided in a packaged form after being acquired, the newly added metadata key cannot be directly resolved: and modifying a closed, sources, data source open stack and data source open stack class, and increasing a get _ data method for calling _ get _ data so that a module for acquiring the Openstack data source can acquire needed virtual machine metadata.
(2) The module for writing the reset password comprises:
forced acquisition of Openstack data source
In the virtual machine initialization procedures Cloud-init and Cloud base-init, the data source is determined by the virtual machine creation and the related configuration of the virtual machine image, and after the virtual machine is started, the service of the Cloud-init and the Cloud base-init will acquire the data source data in the data source sequence in the configuration. When the data source is successfully acquired, the data of the data source is cached, and the data used by the subsequent module and process basically does not change, that is, when the used data source is an immutable data source such as ConfigDrive, the virtual machine initialization program cannot acquire the latest data, so that when the password resets the requirement that the latest data source needs to be used, the module needs to forcibly use the changeable data source such as an Openstack data source as information input. Specifically, a mode of searching for a specified data source is called in a module, an Openstack data source is obtained forcibly, and if an effective data source is obtained, further operation is performed.
Parsing virtual machine metadata
After the Openstack data source is obtained, calling a get _ data method to obtain virtual machine metadata. And resolving key values corresponding to the task _ id and the task _ password in the metadata according to the key of the metadata.
Determining whether to change password
The Cloud-init needs to execute the record at its execution record directory access module, and obtain the local _ task _ id of the executed record from the local specified file. And then comparing the task _ id with the local _ task _ id, and if different or local unique identifiers do not exist, indicating that the task is newly issued data, so that a user password change process needs to be executed. If the two ids are the same, the user is not updated with the task _ id, and the password reset is not needed.
Performing password changes
When the password is changed, the password is decoded into an original password according to user information and task _ password acquired from an Openstack data source, and a local password resetting method of the virtual machine is called by using a tool class provided by Cloud-init to update the virtual machine password.
Configuring module constants
A storage location of local _ task _ id is defined. The module execution frequency PER _ ALWAYS is defined so that the module can be executed every time the virtual machine is started.
(3) Cloud-init configuration change
The module name of the module is added into the starting configuration of the group-init, and is recommended to be added into a group _ final _ modules configuration set, so that password resetting can be performed at the last stage of starting and configuring the module by the virtual machine.
The method comprises the following specific steps of:
(1) and opening the openstack data source virtual machine metadata:
because the acquired data of the Cloudbase-init data source is provided in a packaging form, the newly added metadata key cannot be directly analyzed: task _ id and task _ password, which need to be modified
cloudbaseinit.metadata.services.baseopenstackservice.
And the BaseOpenStackService class adds a get _ meta _ data method for calling _ get _ meta _ data, so that a module for acquiring the Openstack data source can acquire the needed virtual machine metadata.
(2) A module for writing a reset password:
forced acquisition of Openstack data source
And loading a class cloudbaseinit.metadata.services.httpserver.HttpService by an Openstack data source under the cloud-init through a class loader to obtain the opentack metadata service providing class.
Parsing virtual machine metadata
After the Openstack metadata service is acquired, a get _ meta _ data method is called to acquire virtual machine metadata. And resolving key values corresponding to the task _ id and the task _ password in the metadata according to the key of the metadata.
Determining whether to change password
Data such as execution records in the Cloudbase-init are stored in the windows registry, so that it is necessary to call a tool class provided by the Cloudbase-init and obtain the local _ task _ id of the executed record from a specified position in the registry. And then comparing the task _ id with the local _ task _ id, and if different or local unique identifiers do not exist, indicating that the task is newly issued data, so that a user password change process needs to be executed. If the two ids are the same, the user is not updated with the task _ id, and the password reset is not needed.
Performing password changes
When the password is changed, the password is decoded into an original password according to user information and task _ password acquired from an Openstack data source, and a local password resetting method of the virtual machine is called by using a tool class provided by cloud-init to update the virtual machine password.
Setting module execution frequency
The execution frequency of the module of the Cloudbase-init is configured in the return value of the module, and the plug _ EXECUTE _ ON _ NEXT _ BOOT is returned when the execution of the module is successful, so that the module can be executed at each startup of the virtual machine.
(3) Cludbase-init configuration change
The module name of the module is added to the starting configuration of the Cloudbase-init, and the configuration item Plugins is added to the Cloudbase-init. The recommended addition to the end of plugins can be performed by resetting the password at the last stage of starting the virtual machine and configuring the module.
The above embodiments are only specific examples of the present invention, and the scope of the present invention includes but is not limited to the above embodiments, and any suitable changes or substitutions that are consistent with the claims of a password resetting method of the present invention and are made by those skilled in the art should fall within the scope of the present invention.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A password resetting method is characterized in that a unique identifier and encrypted password metadata information are added to a created virtual machine, a password resetting management module and configuration of a starting password resetting management module are added to a virtual machine initialization program in the virtual machine, Openstack metadata are obtained when the virtual machine is started each time, the unique identifier in the metadata is compared with the locally stored unique identifier to determine whether a password resetting task is carried out or not, and support of an Openstack cloud platform for user password resetting of the virtual machine is achieved.
2. A password resetting method according to claim 1, characterized by the steps of:
s1, modifying the source codes of Cloud-init and Cloud base-init, opening to obtain the metadata content of Openstack, and allowing the module to obtain the virtual machine metadata provided in the data source;
s2, compiling a module for resetting the password on the basis of open source Cloud-init and Cloud base-init software;
s3, modifying the start configuration file of the Cloud-init and the Cloud base-init software when the virtual machine mirror image is manufactured, and configuring the reset password module to be executed every time the virtual machine mirror image is started.
3. The password resetting method according to claim 2, wherein for Cloud-init, the specific steps are:
(1) opening virtual machine metadata of an openstack data source;
(2) the module for writing the reset password;
(3) and a Cloud-init configuration change.
4. The password resetting method according to claim 3, wherein in the step (1), a get _ data method calling _ get _ data is added to a close.
5. The password resetting method according to claim 3, wherein in step (2), further comprising:
(201) calling a mode of searching for a specified data source in the module, and forcibly acquiring an Openstack data source;
(202) after the Openstack data source is obtained, calling a get _ data method to obtain virtual machine metadata, and analyzing key values corresponding to task _ id and task _ password in the metadata according to key of the metadata.
(203) The Cloud-init needs to execute the record in an execution record directory access module, obtain local _ task _ id of the executed record from a local specified file, then compare the task _ id with the local _ task _ id, and if the different or local unique identifiers do not exist, the task is newly issued data, so that a user password change process needs to be executed;
if the two ids are the same, the user is not updated with the task _ id, and the password reset is not needed.
(204) And when the password is changed, decoding the password into an original password according to the user information and the task _ password acquired from the Openstack data source, and calling a local password resetting method of the virtual machine by using a tool class provided by Cloud-init to update the virtual machine password.
(205) And defining a storage position of local _ task _ id, and defining a module execution frequency (PER _ ALWAYS) so that the module can be executed each time the virtual machine is started.
6. A password resetting method according to claim 3, wherein in step (3), the module name of the module is added to the starting configuration of the cloud-init and added to the cloudfinal modules configuration set, so that the password resetting can be performed at the final stage of starting and configuring the module by the virtual machine.
7. The password reset method of claim 2, wherein the modifications are made to the Cloudbase-init
A get _ meta _ data method for calling _ get _ meta _ data is added to a cloudbaseeinit.
8. The password resetting method according to claim 7, wherein in the Cloudbase-init, the Openstack data source under the Cloudbase-init is loaded with a cloudbaseinit.metadata.services.httpservice.httpservice.httpservice through a class loader, and the Openstack metadata service providing class is obtained;
after the Openstack metadata service is obtained, calling a get _ meta _ data method to obtain virtual machine metadata, and analyzing a task _ id in the metadata and a key value corresponding to the task _ password according to a key of the metadata;
storing data such as execution records in the cloud-init in a windows registry, calling a tool class provided by the cloud-init, and acquiring local _ task _ id of the executed records at a specified position in the registry;
and then comparing the task _ id with the local _ task _ id, and if different or local unique identifiers do not exist, indicating that the task is newly issued data, so that a user password change process needs to be executed. If the two ids are the same, the user does not update the task _ id and does not need to reset the password;
when the password is changed, decoding the password into an original password according to user information and task _ password acquired from an Openstack data source, calling a local password resetting method of the virtual machine by using a tool class provided by cloud-init, and updating the virtual machine password;
the execution frequency of the module of the Cloudbase-init is configured in the return value of the module, and the plug _ EXECUTE _ ON _ NEXT _ BOOT is returned when the execution of the module is successful, so that the module can be executed at each startup of the virtual machine.
9. The method of claim 8, wherein the module name of the module is added to the starting configuration of Cloudbase-init, and the configuration item plugin … < module name > is added to the conff, so that the password resetting can be performed at the last stage of starting and configuring the module in the virtual machine.
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