CN106302771A - A kind of method for configuring domain name of the application created based on Docker container - Google Patents
A kind of method for configuring domain name of the application created based on Docker container Download PDFInfo
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- CN106302771A CN106302771A CN201610706026.7A CN201610706026A CN106302771A CN 106302771 A CN106302771 A CN 106302771A CN 201610706026 A CN201610706026 A CN 201610706026A CN 106302771 A CN106302771 A CN 106302771A
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- application
- domain name
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- docker
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/30—Managing network names, e.g. use of aliases or nicknames
- H04L61/3015—Name registration, generation or assignment
- H04L61/3025—Domain name generation or assignment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
Abstract
The invention discloses the method for configuring domain name of a kind of application created based on Docker container, belong to the technology of computer software application, when the present invention solves restart based on the application that Docker container creates or rebuild, the domain name of this application changes the problem causing service disconnection, use technical scheme be: when application multiple Docker containers on startup, automatically container is reported to start event to service end, service end carries out data parsing, domain name by multiple Docker containers, IP, port information is saved in Etcd data base, it is simultaneously this application configuration load balancing at Haproxy, and by the domain name of application, IP, access port is configured to Etcd data base, SkyDns reads Etcd data base automatically, complete domain name mapping;The domain name of the application configuration persistence for creating based on Docker container, when application is restarted or rebuilds, this domain name all keeps constant;The load balancing of application can be completed simultaneously.
Description
Technical field
The present invention relates to the technology of a kind of computer software application, a kind of based on the establishment of Docker container
The method for configuring domain name of application.
Background technology
Docker is the senior container engine based on LXC that PaaS provider dotCloud increases income, source code torr
Pipe is on Github, based on go language and defer to Apache2.0 agreement and increase income.Docker uses client-server (C/
S) architecture mode, uses long-range API to manage and create Docker container.Docker container is created by Docker mirror image
Build.Object that the relation object of container and mirror image is similar in OOP and class.Docker is an application container increased income
Engine, developer can be packed their application and rely on bag in a transplantable container, is then published to any
On popular Linux machine, it is also possible to realize virtualization.Docker can be realized based on Linux Bridge and Namespace
Container uses the local network with main frame so that external network can the most mutually access with Docker container.Whole
Framework is divided into service end and client, and they realize communication by the form of RESTful URL.
Application No. CN201510375226.4, applies for entitled: configuration management mode based on Docker and device.Public
Open a kind of configuration management mode based on Docker, be applied to include in the Docker running environment of multiple container, including: obtain
Take the configuration needs of multiple containers in Docker running environment;Determine first floor system order corresponding with configuration needs;Foundation
Configuration needs is also called first floor system order and is managed for configuration the multiple containers in Docker running environment.Solve former
The raw Docker incomplete problem of configuration management mode to the container of its internal virtual.
Docker is an application container engine increased income, allow developer can pack they application and rely on bag arrive
In one transplantable container, then it is published on any popular Linux machine, it is also possible to realize virtualization.Docker mesh
Before there is multiple network pattern, comprise Bridge pattern, Host pattern, OverLay pattern, but these network schemers all exist
Problem as this kind of: the IP of container cannot fix, when container is restarted, Docker can randomly select the IP being not used and join
Put to this container, keep the reference address of application to immobilize, be the basic demand to operation system.
, there is three below problem: 1, the IP that container obtains is generally internal IP in the container created based on Docker, it is impossible to
Accessed by outside.2, container restarts rear IP change, other container instances or application example cannot the IP change of this container of perception,
Cause service disconnection.If 3 application externally provide the service of access, needing to configure single load balancing software, this application is multiple
During container instance, config update load balancing software becomes complicated.
Summary of the invention
The technical assignment of the present invention is to provide the method for configuring domain name of a kind of application created based on Docker container, solves base
When the application that Docker container creates is restarted or rebuilds, the domain name of this application changes the problem causing service disconnection.
The technical assignment of the present invention realizes in the following manner,
The method for configuring domain name of a kind of application created based on Docker container, when the application disposed is by multiple Docker containers
During establishment, using the method is that each application carries out domain name configuration, and step is as follows:
(1), system initialization, host is disposed Agent, Agent and is used for monitoring Docker event and reporting message to servicing
End;Service end deployment Docker cluster management software: Haproxy, SkyDNs and Etcd, it is possible to accept and process Agent to report
Information;
(2), application is created:
A, issue create application request time, service end extract data: the domain name of application, Docker container configuration parameter and container
Quantity, service end is that this application distributes domain name parameters simultaneously, and first service end issues the request creating container, and service end completes number
According to parsing, by built-in dispatching algorithm, the multiple hosts specified create the Docker container belonging to this application;
B, after the Docker container of this application on host has created and has started successfully, be deployed in the Agent of host
Can receive the container startup event that Docker container reports, Agent resolves this container and starts event and this container is started thing
The content of part is reported to service end;
C, service end resolve this container and start event, and the IP of Docker container and the domain name parameters of application are saved in Etcd data
Storehouse, is saved in Haproxy by Docker container and application corresponding relation simultaneously, and heavy duty Haproxy, SkyDns obtain Etcd number
According to the data in storehouse, complete the domain name mapping of application;
(3), when accessing application, reference address is the domain name of application, and configuration DNS address is the address of SkyDns, SkyDns
Complete domain name mapping such that it is able to access actual Docker capsule address.
In step (1), after system initialization, host information collects, and host Agent runs.
When the Docker container that application is corresponding is restarted, deletes or stopped, Agent all can report Docker container state to become
The event changed updates Etcd data base and Haproxy configuration file to service end, service end, thus ensures when application is accessed for
Wait, it is possible to find correct capsule address.
English nouns resolves:
Agent is software or the hardware entities of energy autonomic activities, is generally translated into " agency ".Agent in the present invention is
One software entity, is used for monitoring Docker event and reporting message to service end.
HAProxy provides high availability, load balancing and agency based on TCP and HTTP application, supports fictitious host computer,
It is free, quick and reliable a solution.HAProxy achieves a kind of event-driven, single process model, this
The concurrent connection number that model supports is the biggest.HAProxy operates on current hardware, can support completely ten hundreds of also
Send out and connect.And its operational mode makes what it can be the most simple and safe to be integrated in current framework, can protect simultaneously
Web server is not exposed on network.
SkyDns is Kubernetes to increase income DNS(Domain Name System for the acquiescence of service discovery, domain name system
System) service, SkyDns uses Etcd to store as rear end, has the feature of distributed type assemblies.
Etcd is a key/value storage service applied under distributed environment, can share letter in the cluster
Breath, reads writing speed quickly.
The method for configuring domain name of a kind of based on the establishment of Docker container the application of the present invention has the advantage that when application
Multiple Docker containers on startup, automatically report container start event carry out data parsing to service end, service end, will be many
The domain name of individual Docker container, IP, port information are saved in Etcd data base, are the load of this application configuration at Haproxy simultaneously
Equilibrium, and the domain name of application, IP, access port are configured to Etcd data base, SkyDns reads Etcd data base automatically, completes
Domain name mapping;The domain name of the application configuration persistence for creating based on Docker container, when application is restarted or rebuilds, this territory
Name all keeps constant;The load balancing of application can be completed simultaneously.Thus, have good value for applications.
Accompanying drawing explanation
The present invention is further described below in conjunction with the accompanying drawings.
Accompanying drawing 1 is the component interaction block diagram of the method for configuring domain name of a kind of application based on the establishment of Docker container;
Accompanying drawing 2 is the FB(flow block) of the method for configuring domain name of a kind of application based on the establishment of Docker container.
Detailed description of the invention
The territory to a kind of application created based on Docker container of the present invention with reference to Figure of description and specific embodiment
Name collocation method is described in detail below.
Embodiment:
The method for configuring domain name of a kind of application created based on Docker container of the present invention, when the application disposed is by multiple
When Docker container creates, using the method is that each application carries out domain name configuration, and step is as follows:
(1), system initialization, host is disposed Agent, Agent and is used for monitoring Docker event and reporting message to servicing
End;Service end deployment Docker cluster management software: Haproxy, SkyDNs and Etcd, it is possible to accept and process Agent to report
Information;
(2), application is created:
A, issue create application request time, service end extract data: the domain name of application, Docker container configuration parameter and container
Quantity, service end is that this application distributes domain name parameters simultaneously, and first service end issues the request creating container, and service end completes number
According to parsing, by built-in dispatching algorithm, the multiple hosts specified create the Docker container belonging to this application;
B, after the Docker container of this application on host has created and has started successfully, be deployed in the Agent of host
Can receive the container startup event that Docker container reports, Agent resolves this container and starts event and this container is started thing
The content of part is reported to service end;
C, service end resolve this container and start event, and the IP of Docker container and the domain name parameters of application are saved in Etcd data
Storehouse, is saved in Haproxy by Docker container and application corresponding relation simultaneously, and heavy duty Haproxy, SkyDns obtain Etcd number
According to the data in storehouse, complete the domain name mapping of application;
(3), when accessing application, reference address is the domain name of application, and configuration DNS address is the address of SkyDns, SkyDns
Complete domain name mapping such that it is able to access actual Docker capsule address.
In step (1), after system initialization, host information collects, and host Agent runs.
When the Docker container that application is corresponding is restarted, deletes or stopped, Agent all can report Docker container state to become
The event changed updates Etcd data base and Haproxy configuration file to service end, service end, thus ensures when application is accessed for
Wait, it is possible to find correct capsule address.
By detailed description of the invention above, described those skilled in the art can readily realize the present invention.But should
Working as understanding, the present invention is not limited to above-mentioned detailed description of the invention.On the basis of disclosed embodiment, described technical field
Technical staff can the different technical characteristic of combination in any, thus realize different technical schemes.
In addition to the technical characteristic described in description, it is the known technology of those skilled in the art.
Claims (3)
1. the method for configuring domain name of the application created based on Docker container, it is characterised in that when the application disposed is by many
When individual Docker container creates, using the method is that each application carries out domain name configuration, and step is as follows:
(1), system initialization, host is disposed Agent, Agent and is used for monitoring Docker event and reporting message to servicing
End;Service end deployment Docker cluster management software: Haproxy, SkyDNs and Etcd, it is possible to accept and process Agent to report
Information;
(2), application is created:
A, issue create application request time, service end extract data: the domain name of application, Docker container configuration parameter and container
Quantity, service end is that this application distributes domain name parameters simultaneously, and first service end issues the request creating container, and service end completes number
According to parsing, by built-in dispatching algorithm, the multiple hosts specified create the Docker container belonging to this application;
B, after the Docker container of this application on host has created and has started successfully, be deployed in the Agent of host
Can receive the container startup event that Docker container reports, Agent resolves this container and starts event and this container is started thing
The content of part is reported to service end;
C, service end resolve this container and start event, and the IP of Docker container and the domain name parameters of application are saved in Etcd data
Storehouse, is saved in Haproxy by Docker container and application corresponding relation simultaneously, and heavy duty Haproxy, SkyDns obtain Etcd number
According to the data in storehouse, complete the domain name mapping of application;
(3), when accessing application, reference address is the domain name of application, and configuration DNS address is the address of SkyDns, SkyDns
Complete domain name mapping such that it is able to access actual Docker capsule address.
The method for configuring domain name of a kind of application created based on Docker container the most according to claim 1, its feature exists
In step (1), after system initialization, host information collects, and host Agent runs.
The method for configuring domain name of a kind of application created based on Docker container the most according to claim 1, its feature exists
In time restarting when Docker container corresponding to application, delete or stop, Agent all can report the thing that Docker container state changes
Part updates Etcd data base and Haproxy configuration file to service end, service end.
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CN107465765A (en) * | 2017-09-21 | 2017-12-12 | 深圳市视维科技股份有限公司 | A kind of intelligent use gateway realization method based on container cloud |
CN107506282A (en) * | 2017-08-28 | 2017-12-22 | 郑州云海信息技术有限公司 | The system monitoring data capture method and system of container in a kind of docker clusters |
CN107707607A (en) * | 2017-07-24 | 2018-02-16 | 上海壹账通金融科技有限公司 | Using access method, device, computer equipment and storage medium |
CN107819632A (en) * | 2017-11-24 | 2018-03-20 | 郑州云海信息技术有限公司 | A kind of dynamic load leveling group system based on performance monitoring system and Docker Swarm |
CN108551488A (en) * | 2018-05-03 | 2018-09-18 | 山东汇贸电子口岸有限公司 | Distributed container cluster load balancing method based on domestic CPU and OS |
CN108574705A (en) * | 2017-03-09 | 2018-09-25 | 中国移动通信集团湖北有限公司 | Communication means, apparatus and system between a kind of container |
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CN109033334A (en) * | 2018-07-20 | 2018-12-18 | 郑州云海信息技术有限公司 | A kind of method, apparatus and computer storage medium creating database |
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