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kubernetes中Harbor有什么用

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一：简介

Harbor是一个用于存储和分发Docker镜像的企业级Registry服务器。

镜像的存储harbor使用的是官方的docker registry(v2命名是distribution)服务去完成。harbor在docker distribution的基础上增加了一些安全、访问控制、管理的功能以满足企业对于镜像仓库的需求。harbor以docker-compose的规范形式组织各个组件，并通过docker-compose工具进行启停。

docker的registry是用本地存储或者s3都是可以的，harbor的功能是在此之上提供用户权限管理、镜像复制等功能，提高使用的registry的效率。Harbor的镜像拷贝功能是通过docker registry的API去拷贝，这种做法屏蔽了繁琐的底层文件操作、不仅可以利用现有docker registry功能不必重复造轮子，而且可以解决冲突和一致性的问题。

二：Harbor架构
kubernetes中Harbor有什么用

三：主要组件

  • Proxy：对应启动组件nginx。它是一个nginx反向代理，代理Notary client（镜像认证）、Docker client（镜像上传下载等）和浏览器的访问请求（Core Service）给后端的各服务；

  • UI（Core Service）：对应启动组件harbor-ui。底层数据存储使用MySQL数据库，主要提供了四个子功能： 

    • UI：一个web管理页面ui；

    • API：Harbor暴露的API服务；

    • Auth：用户认证服务，decode后的token中的用户信息在这里进行认证；auth后端可以接db、ldap、uaa三种认证实现；

    • Token服务（上图中未体现）：负责根据用户在每个project中的role来为每一个docker push/pull命令issuing一个token，如果从docker client发送给registry的请求没有带token，registry会重定向请求到token服务创建token。

  • Registry：对应启动组件registry。负责存储镜像文件，和处理镜像的pull/push命令。Harbor对镜像进行强制的访问控制，Registry会将客户端的每个pull、push请求转发到token服务来获取有效的token。

  • Admin Service：对应启动组件harbor-adminserver。是系统的配置管理中心附带检查存储用量，ui和jobserver启动时候需要加载adminserver的配置；

  • Job Sevice：对应启动组件harbor-jobservice。负责镜像复制工作的，他和registry通信，从一个registry pull镜像然后push到另一个registry，并记录job_log；

  • Log Collector：对应启动组件harbor-log。日志汇总组件，通过docker的log-driver把日志汇总到一起；

  • Volnerability Scanning：对应启动组件clair。负责镜像扫描

  • Notary：对应启动组件notary。负责镜像认证

  • DB：对应启动组件harbor-db，负责存储project、 user、 role、replication、image_scan、access等的metadata数据。

四：安装

1、安装python-pip
yum -y install epel-release
yum -y install python-pip

2、安装docker-compose
pip install docker-compose
待安装完成后，执行查询版本的命令，即可安装docker-compose
docker-compose version

3.安装Harbor
wget https://storage.googleapis.com/harbor-releases/release-1.4.0/harbor-offline-installer-v1.4.0.tgz
tar -zxvf harbor-offline-installer-v1.4.0.tgz

配置文件 harbor.cfg

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  1. ## Configuration file of Harbor

  3. #The IP address or hostname to access admin UI and registry service.

  4. #DO NOT use localhost or 127.0.0.1, because Harbor needs to be accessed by external clients.

  5. hostname = 120.79.156.135

  7. #The protocol for accessing the UI and token/notification service, by default it is http.

  8. #It can be set to https if ssl is enabled on nginx.

  9. ui_url_protocol = http

  11. #Maximum number of job workers in job service

  12. max_job_workers = 3

  14. #Determine whether or not to generate certificate for the registry's token.

  15. #If the value is on, the prepare script creates new root cert and private key

  16. #for generating token to access the registry. If the value is off the default key/cert will be used.

  17. #This flag also controls the creation of the notary signer's cert.

  18. customize_crt = on

  20. #The path of cert and key files for nginx, they are applied only the protocol is set to https

  21. ssl_cert = /mnt/harbor/cert/server.crt

  22. ssl_cert_key = /mnt/harbor/cert/server.key

  24. #The path of secretkey storage

  25. secretkey_path = /mnt/harbor

  27. #Admiral's url, comment this attribute, or set its value to NA when Harbor is standalone

  28. admiral_url = NA

  30. #Log files are rotated log_rotate_count times before being removed. If count is 0, old versions are removed rather than rotated.

  31. log_rotate_count = 50

  32. #Log files are rotated only if they grow bigger than log_rotate_size bytes. If size is followed by k, the size is assumed to be in kilobytes.

  33. #If the M is used, the size is in megabytes, and if G is used, the size is in gigabytes. So size 100, size 100k, size 100M and size 100G

  34. #are all valid.

  35. log_rotate_size = 200M

  37. #NOTES: The properties between BEGIN INITIAL PROPERTIES and END INITIAL PROPERTIES

  38. #only take effect in the first boot, the subsequent changes of these properties

  39. #should be performed on web ui

  41. #************************BEGIN INITIAL PROPERTIES************************

  43. #Email account settings for sending out password resetting emails.

  45. #Email server uses the given username and password to authenticate on TLS connections to host and act as identity.

  46. #Identity left blank to act as username.

  47. email_identity =

  49. email_server = smtp.mydomain.com

  50. email_server_port = 25

  51. email_username = sample_admin@mydomain.com

  52. email_password = abc

  53. email_from = admin

  54. email_ssl = false

  55. email_insecure = false

  57. ##The initial password of Harbor admin, only works for the first time when Harbor starts.

  58. #It has no effect after the first launch of Harbor.

  59. #Change the admin password from UI after launching Harbor.

  60. harbor_admin_password = Weinong$2017

  62. ##By default the auth mode is db_auth, i.e. the credentials are stored in a local database.

  63. #Set it to ldap_auth if you want to verify a user's credentials against an LDAP server.

  64. auth_mode = db_auth

  66. #The url for an ldap endpoint.

  67. ldap_url = ldaps://ldap.mydomain.com

  69. #A user's DN who has the permission to search the LDAP/AD server.

  70. #If your LDAP/AD server does not support anonymous search, you should configure this DN and ldap_search_pwd.

  71. #ldap_searchdn = uid=searchuser,ou=people,dc=mydomain,dc=com

  73. #the password of the ldap_searchdn

  74. #ldap_search_pwd = password

  76. #The base DN from which to look up a user in LDAP/AD

  77. ldap_basedn = ou=people,dc=mydomain,dc=com

  79. #Search filter for LDAP/AD, make sure the syntax of the filter is correct.

  80. #ldap_filter = (objectClass=person)

  82. # The attribute used in a search to match a user, it could be uid, cn, email, sAMAccountName or other attributes depending on your LDAP/AD

  83. ldap_uid = uid

  85. #the scope to search for users, 0-LDAP_SCOPE_BASE, 1-LDAP_SCOPE_ONELEVEL, 2-LDAP_SCOPE_SUBTREE

  86. ldap_scope = 2

  88. #Timeout (in seconds)  when connecting to an LDAP Server. The default value (and most reasonable) is 5 seconds.

  89. ldap_timeout = 5

  91. #Verify certificate from LDAP server

  92. ldap_verify_cert = true

  94. #Turn on or off the self-registration feature

  95. self_registration = on

  97. #The expiration time (in minute) of token created by token service, default is 30 minutes

  98. token_expiration = 30

  100. #The flag to control what users have permission to create projects

  101. #The default value "everyone" allows everyone to creates a project.

  102. #Set to "adminonly" so that only admin user can create project.

  103. project_creation_restriction = everyone

  105. #************************END INITIAL PROPERTIES************************

  107. #######Harbor DB configuration section#######

  109. #The address of the Harbor database. Only need to change when using external db.

  110. db_host = mysql

  112. #The password for the root user of Harbor DB. Change this before any production use.

  113. db_password = Weinong$2017

  115. #The port of Harbor database host

  116. db_port = 3306

  118. #The user name of Harbor database

  119. db_user = root

  121. ##### End of Harbor DB configuration#######

  123. #The redis server address. Only needed in HA installation.

  124. redis_url =

  126. ##########Clair DB configuration############

  128. #Clair DB host address. Only change it when using an exteral DB.

  129. clair_db_host = postgres

  131. #The password of the Clair's postgres database. Only effective when Harbor is deployed with Clair.

  132. #Please update it before deployment. Subsequent update will cause Clair's API server and Harbor unable to access Clair's database.

  133. clair_db_password = password

  135. #Clair DB connect port

  136. clair_db_port = 5432

  138. #Clair DB username

  139. clair_db_username = postgres

  141. #Clair default database

  142. clair_db = postgres

  144. ##########End of Clair DB configuration############

  146. #The following attributes only need to be set when auth mode is uaa_auth

  147. uaa_endpoint = uaa.mydomain.org

  148. uaa_clientid = id

  149. uaa_clientsecret = secret

  150. uaa_verify_cert = true

  151. uaa_ca_cert = /path/to/ca.pem

  154. ### Docker Registry setting ###

  155. #registry_storage_provider can be: filesystem, s3, gcs, azure, etc.

  156. registry_storage_provider_name = filesystem

  157. #registry_storage_provider_config is a comma separated "key: value" pairs, e.g. "key1: value, key2: value2".

  158. #Refer to https://docs.docker.com/registry/configuration/#storage for all available configuration.

  159. registry_storage_provider_config =

配置文件docker-compose.yml

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  1. version: '2'

  2. services:

  3.   log:

  4.     image: vmware/harbor-log:v1.4.0

  5.     container_name: harbor-log

  6.     restart: always

  7.     volumes:

  8.       - /mnt/harbor/log/:/var/log/docker/:z

  9.       - ./common/config/log/:/etc/logrotate.d/:z

  10.     ports:

  11.       - 127.0.0.1:1514:10514

  12.     networks:

  13.       - harbor

  14.   registry:

  15.     image: vmware/registry-photon:v2.6.2-v1.4.0

  16.     container_name: registry

  17.     restart: always

  18.     volumes:

  19.       - /mnt/harbor/registry:/storage:z

  20.       - ./common/config/registry/:/etc/registry/:z

  21.     networks:

  22.       - harbor

  23.     environment:

  24.       - GODEBUG=netDNS=cgo

  25.     command:

  26.       ["serve", "/etc/registry/config.yml"]

  27.     depends_on:

  28.       - log

  29.     logging:

  30.       driver: "syslog"

  31.       options:

  32.         syslog-address: "tcp://127.0.0.1:1514"

  33.         tag: "registry"

  34.   mysql:

  35.     image: vmware/harbor-db:v1.4.0

  36.     container_name: harbor-db

  37.     restart: always

  38.     volumes:

  39.       - /mnt/harbor/database:/var/lib/mysql:z

  40.     networks:

  41.       - harbor

  42.     env_file:

  43.       - ./common/config/db/env

  44.     depends_on:

  45.       - log

  46.     logging:

  47.       driver: "syslog"

  48.       options:

  49.         syslog-address: "tcp://127.0.0.1:1514"

  50.         tag: "mysql"

  51.   adminserver:

  52.     image: vmware/harbor-adminserver:v1.4.0

  53.     container_name: harbor-adminserver

  54.     env_file:

  55.       - ./common/config/adminserver/env

  56.     restart: always

  57.     volumes:

  58.       - /mnt/harbor/config/:/etc/adminserver/config/:z

  59.       - /mnt/harbor/secretkey:/etc/adminserver/key:z

  60.       - /mnt/harbor/:/data/:z

  61.     networks:

  62.       - harbor

  63.     depends_on:

  64.       - log

  65.     logging:

  66.       driver: "syslog"

  67.       options:

  68.         syslog-address: "tcp://127.0.0.1:1514"

  69.         tag: "adminserver"

  70.   ui:

  71.     image: vmware/harbor-ui:v1.4.0

  72.     container_name: harbor-ui

  73.     env_file:

  74.       - ./common/config/ui/env

  75.     restart: always

  76.     volumes:

  77.       - ./common/config/ui/app.conf:/etc/ui/app.conf:z

  78.       - ./common/config/ui/private_key.pem:/etc/ui/private_key.pem:z

  79.       - ./common/config/ui/certificates/:/etc/ui/certificates/:z

  80.       - /mnt/harbor/secretkey:/etc/ui/key:z

  81.       - /mnt/harbor/ca_download/:/etc/ui/ca/:z

  82.       - /mnt/harbor/psc/:/etc/ui/token/:z

  83.     networks:

  84.       - harbor

  85.     depends_on:

  86.       - log

  87.       - adminserver

  88.       - registry

  89.     logging:

  90.       driver: "syslog"

  91.       options:

  92.         syslog-address: "tcp://127.0.0.1:1514"

  93.         tag: "ui"

  94.   jobservice:

  95.     image: vmware/harbor-jobservice:v1.4.0

  96.     container_name: harbor-jobservice

  97.     env_file:

  98.       - ./common/config/jobservice/env

  99.     restart: always

  100.     volumes:

  101.       - /mnt/harbor/job_logs:/var/log/jobs:z

  102.       - ./common/config/jobservice/app.conf:/etc/jobservice/app.conf:z

  103.       - /mnt/harbor/secretkey:/etc/jobservice/key:z

  104.     networks:

  105.       - harbor

  106.     depends_on:

  107.       - ui

  108.       - adminserver

  109.     logging:

  110.       driver: "syslog"

  111.       options:

  112.         syslog-address: "tcp://127.0.0.1:1514"

  113.         tag: "jobservice"

  114.   proxy:

  115.     image: vmware/nginx-photon:v1.4.0

  116.     container_name: nginx

  117.     restart: always

  118.     volumes:

  119.       - ./common/config/nginx:/etc/nginx:z

  120.     networks:

  121.       - harbor

  122.     ports:

  123.       - 80:80

  124.       - 443:443

  125.       - 4443:4443

  126.     depends_on:

  127.       - mysql

  128.       - registry

  129.       - ui

  130.       - log

  131.     logging:

  132.       driver: "syslog"

  133.       options:

  134.         syslog-address: "tcp://127.0.0.1:1514"

  135.         tag: "proxy"

  136. networks:

  137.   harbor:

  138.     external: false

安装Harbor
./install.sh

可以使用docker-compose来管理Harbor的生命周期。 一些有用的命令列出如下:
docker-compose ps  查看
kubernetes中Harbor有什么用

docker-compose stop  停止
docker-compose start 启动
docker-compose down  删除，利用./install.sh可以重新安装

五：验证

1.碰到的问题

a. 错误提示

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  1. /usr/lib/python2.7/site-packages/requests/__init__.py:80: RequestsDependencyWarning: urllib3 (1.21.1) or chardet (2.2.1) doesn

原因：python库中urllib3 (1.21.1) or chardet (2.2.1) 的版本不兼容
解决办法：
pip uninstall urllib3
pip uninstall  chardet
pip install requests

b.错误提示：“harbor failed to initialize the system: read /etc/adminserver/key: is a directory”
原因：harbor.cfg中的secretkey_path和docker-compose.yml中的设置不一致

2.ui 界面
kubernetes中Harbor有什么用

感谢你能够认真阅读完这篇文章，希望小编分享的“kubernetes中Harbor有什么用”这篇文章对大家有帮助，同时也希望大家多多支持创新互联，关注创新互联行业资讯频道，更多相关知识等着你来学习!


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