Docker 入门教程(六) 使用Harbor搭建私有镜像仓库

Docker镜像与容器的开发和运行都离不开镜像管理，而要进行镜像管理就必须要有镜像仓库，通常情况下都是使用Docker官方提供的镜像仓库Docker Hub，有些情况下，我们自己的某些项目出于安全考虑，就必须考虑自建镜像仓库。因此，搭建和部署企业私有环境中的镜像仓库就非常有必要了

Harbor是有VMware公司开发并开源的Docker镜像仓库的管理项目，它包括镜像的权限管理（RBAC）、目录访问(LDAP)、日志审核、管理界面、自我注册、镜像复制和中文支持等功能。

1、安装和配置Harbor

1.1 从GitHub下载Harbor的安装文件，https://github.com/goharbor/harbor/releases 这里用的版本2.11.1

wget https://github.com/goharbor/harbor/releases/download/v2.11.1/harbor-offline-installer-v2.11.1.tgz

1.2 解压Harbor 到安装目录

mkdir -p /data 
tar -zxvf harbor-offline-installer-v2.11.1.tgz -C /data 
cd /data/harbor
cp harbor.yml.tmpl harbor.yml

编辑 harbor.yml 文件，根据实际需求进行配置

# Configuration file of Harbor

# The IP address or hostname to access admin UI and registry service.
# DO NOT use localhost or 127.0.0.1, because Harbor needs to be accessed by external clients.
hostname: harbor.test.com  # 使用域名或IP 

# http related config
http:
  # port for http, default is 80. If https enabled, this port will redirect to https port
  port: 80  # http端口

# https related config
#https:  # 如需要https访问 自行生成ssl证书即可
  # https port for harbor, default is 443
  #port: 443
  # The path of cert and key files for nginx
  #certificate: /data/harbor/ssl/harbor.key
  #private_key: /data/harbor/ssl/privkey.pem
  # enable strong ssl ciphers (default: false)
  # strong_ssl_ciphers: false

# # Harbor will set ipv4 enabled only by default if this block is not configured
# # Otherwise, please uncomment this block to configure your own ip_family stacks
# ip_family:
#   # ipv6Enabled set to true if ipv6 is enabled in docker network, currently it affected the nginx related component
#   ipv6:
#     enabled: false
#   # ipv4Enabled set to true by default, currently it affected the nginx related component
#   ipv4:
#     enabled: true

# # Uncomment following will enable tls communication between all harbor components
# internal_tls:
#   # set enabled to true means internal tls is enabled
#   enabled: true
#   # put your cert and key files on dir
#   dir: /etc/harbor/tls/internal


# Uncomment external_url if you want to enable external proxy
# And when it enabled the hostname will no longer used
# external_url: https://reg.mydomain.com:8433

# The initial password of Harbor admin
# It only works in first time to install harbor
# Remember Change the admin password from UI after launching Harbor.
harbor_admin_password: harbor123456  # # web界面admin密码

# Harbor DB configuration
database:
  # The password for the root user of Harbor DB. Change this before any production use.
  password: harbor123456  # 数据库root密码
  # The maximum number of connections in the idle connection pool. If it <=0, no idle connections are retained.
  max_idle_conns: 100
  # The maximum number of open connections to the database. If it <= 0, then there is no limit on the number of open connections.
  # Note: the default number of connections is 1024 for postgres of harbor.
  max_open_conns: 900
  # The maximum amount of time a connection may be reused. Expired connections may be closed lazily before reuse. If it <= 0, connections are not closed due to a connection's age.
  # The value is a duration string. A duration string is a possibly signed sequence of decimal numbers, each with optional fraction and a unit suffix, such as "300ms", "-1.5h" or "2h45m". Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h".
  conn_max_lifetime: 5m
  # The maximum amount of time a connection may be idle. Expired connections may be closed lazily before reuse. If it <= 0, connections are not closed due to a connection's idle time.
  # The value is a duration string. A duration string is a possibly signed sequence of decimal numbers, each with optional fraction and a unit suffix, such as "300ms", "-1.5h" or "2h45m". Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h".
  conn_max_idle_time: 0

# The default data volume
data_volume: /data/harbor/data   # 数据存放路径

# Harbor Storage settings by default is using /data dir on local filesystem
# Uncomment storage_service setting If you want to using external storage
# storage_service:
#   # ca_bundle is the path to the custom root ca certificate, which will be injected into the truststore
#   # of registry's containers.  This is usually needed when the user hosts a internal storage with self signed certificate.
#   ca_bundle:

#   # storage backend, default is filesystem, options include filesystem, azure, gcs, s3, swift and oss
#   # for more info about this configuration please refer https://distribution.github.io/distribution/about/configuration/
#   # and https://distribution.github.io/distribution/storage-drivers/
#   filesystem:
#     maxthreads: 100
#   # set disable to true when you want to disable registry redirect
#   redirect:
#     disable: false

# Trivy configuration
#
# Trivy DB contains vulnerability information from NVD, Red Hat, and many other upstream vulnerability databases.
# It is downloaded by Trivy from the GitHub release page https://github.com/aquasecurity/trivy-db/releases and cached
# in the local file system. In addition, the database contains the update timestamp so Trivy can detect whether it
# should download a newer version from the Internet or use the cached one. Currently, the database is updated every
# 12 hours and published as a new release to GitHub.
trivy:
  # ignoreUnfixed The flag to display only fixed vulnerabilities
  ignore_unfixed: false
  # skipUpdate The flag to enable or disable Trivy DB downloads from GitHub
  #
  # You might want to enable this flag in test or CI/CD environments to avoid GitHub rate limiting issues.
  # If the flag is enabled you have to download the `trivy-offline.tar.gz` archive manually, extract `trivy.db` and
  # `metadata.json` files and mount them in the `/home/scanner/.cache/trivy/db` path.
  skip_update: false
  #
  # skipJavaDBUpdate If the flag is enabled you have to manually download the `trivy-java.db` file and mount it in the
  # `/home/scanner/.cache/trivy/java-db/trivy-java.db` path
  skip_java_db_update: false
  #
  # The offline_scan option prevents Trivy from sending API requests to identify dependencies.
  # Scanning JAR files and pom.xml may require Internet access for better detection, but this option tries to avoid it.
  # For example, the offline mode will not try to resolve transitive dependencies in pom.xml when the dependency doesn't
  # exist in the local repositories. It means a number of detected vulnerabilities might be fewer in offline mode.
  # It would work if all the dependencies are in local.
  # This option doesn't affect DB download. You need to specify "skip-update" as well as "offline-scan" in an air-gapped environment.
  offline_scan: false
  #
  # Comma-separated list of what security issues to detect. Possible values are `vuln`, `config` and `secret`. Defaults to `vuln`.
  security_check: vuln
  #
  # insecure The flag to skip verifying registry certificate
  insecure: false
  #
  # timeout The duration to wait for scan completion.
  # There is upper bound of 30 minutes defined in scan job. So if this `timeout` is larger than 30m0s, it will also timeout at 30m0s.
  timeout: 5m0s
  #
  # github_token The GitHub access token to download Trivy DB
  #
  # Anonymous downloads from GitHub are subject to the limit of 60 requests per hour. Normally such rate limit is enough
  # for production operations. If, for any reason, it's not enough, you could increase the rate limit to 5000
  # requests per hour by specifying the GitHub access token. For more details on GitHub rate limiting please consult
  # https://docs.github.com/rest/overview/resources-in-the-rest-api#rate-limiting
  #
  # You can create a GitHub token by following the instructions in
  # https://help.github.com/en/github/authenticating-to-github/creating-a-personal-access-token-for-the-command-line
  #
  # github_token: xxx

jobservice:
  # Maximum number of job workers in job service
  max_job_workers: 10
  # The jobLoggers backend name, only support "STD_OUTPUT", "FILE" and/or "DB"
  job_loggers:
    - STD_OUTPUT
    - FILE
    # - DB
  # The jobLogger sweeper duration (ignored if `jobLogger` is `stdout`)
  logger_sweeper_duration: 1 #days

notification:
  # Maximum retry count for webhook job
  webhook_job_max_retry: 3
  # HTTP client timeout for webhook job
  webhook_job_http_client_timeout: 3 #seconds

# Log configurations
log:
  # options are debug, info, warning, error, fatal
  level: info
  # configs for logs in local storage
  local:
    # Log files are rotated log_rotate_count times before being removed. If count is 0, old versions are removed rather than rotated.
    rotate_count: 50
    # 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.
    # 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
    # are all valid.
    rotate_size: 200M
    # The directory on your host that store log
    location: /var/log/harbor

  # Uncomment following lines to enable external syslog endpoint.
  # external_endpoint:
  #   # protocol used to transmit log to external endpoint, options is tcp or udp
  #   protocol: tcp
  #   # The host of external endpoint
  #   host: localhost
  #   # Port of external endpoint
  #   port: 5140

#This attribute is for migrator to detect the version of the .cfg file, DO NOT MODIFY!
_version: 2.11.0

# Uncomment external_database if using external database.
# external_database:
#   harbor:
#     host: harbor_db_host
#     port: harbor_db_port
#     db_name: harbor_db_name
#     username: harbor_db_username
#     password: harbor_db_password
#     ssl_mode: disable
#     max_idle_conns: 2
#     max_open_conns: 0

# Uncomment redis if need to customize redis db
# redis:
#   # db_index 0 is for core, it's unchangeable
#   # registry_db_index: 1
#   # jobservice_db_index: 2
#   # trivy_db_index: 5
#   # it's optional, the db for harbor business misc, by default is 0, uncomment it if you want to change it.
#   # harbor_db_index: 6
#   # it's optional, the db for harbor cache layer, by default is 0, uncomment it if you want to change it.
#   # cache_layer_db_index: 7

# Uncomment external_redis if using external Redis server
# external_redis:
#   # support redis, redis+sentinel
#   # host for redis: <host_redis>:<port_redis>
#   # host for redis+sentinel:
#   #  <host_sentinel1>:<port_sentinel1>,<host_sentinel2>:<port_sentinel2>,<host_sentinel3>:<port_sentinel3>
#   host: redis:6379
#   password: 
#   # Redis AUTH command was extended in Redis 6, it is possible to use it in the two-arguments AUTH <username> <password> form.
#   # there's a known issue when using external redis username ref:https://github.com/goharbor/harbor/issues/18892
#   # if you care about the image pull/push performance, please refer to this https://github.com/goharbor/harbor/wiki/Harbor-FAQs#external-redis-username-password-usage
#   # username:
#   # sentinel_master_set must be set to support redis+sentinel
#   #sentinel_master_set:
#   # db_index 0 is for core, it's unchangeable
#   registry_db_index: 1
#   jobservice_db_index: 2
#   trivy_db_index: 5
#   idle_timeout_seconds: 30
#   # it's optional, the db for harbor business misc, by default is 0, uncomment it if you want to change it.
#   # harbor_db_index: 6
#   # it's optional, the db for harbor cache layer, by default is 0, uncomment it if you want to change it.
#   # cache_layer_db_index: 7

# Uncomment uaa for trusting the certificate of uaa instance that is hosted via self-signed cert.
# uaa:
#   ca_file: /path/to/ca

# Global proxy
# Config http proxy for components, e.g. http://my.proxy.com:3128
# Components doesn't need to connect to each others via http proxy.
# Remove component from `components` array if want disable proxy
# for it. If you want use proxy for replication, MUST enable proxy
# for core and jobservice, and set `http_proxy` and `https_proxy`.
# Add domain to the `no_proxy` field, when you want disable proxy
# for some special registry.
proxy:
  http_proxy:
  https_proxy:
  no_proxy:
  components:
    - core
    - jobservice
    - trivy

# metric:
#   enabled: false
#   port: 9090
#   path: /metrics

# Trace related config
# only can enable one trace provider(jaeger or otel) at the same time,
# and when using jaeger as provider, can only enable it with agent mode or collector mode.
# if using jaeger collector mode, uncomment endpoint and uncomment username, password if needed
# if using jaeger agetn mode uncomment agent_host and agent_port
# trace:
#   enabled: true
#   # set sample_rate to 1 if you wanna sampling 100% of trace data; set 0.5 if you wanna sampling 50% of trace data, and so forth
#   sample_rate: 1
#   # # namespace used to differentiate different harbor services
#   # namespace:
#   # # attributes is a key value dict contains user defined attributes used to initialize trace provider
#   # attributes:
#   #   application: harbor
#   # # jaeger should be 1.26 or newer.
#   # jaeger:
#   #   endpoint: http://hostname:14268/api/traces
#   #   username:
#   #   password:
#   #   agent_host: hostname
#   #   # export trace data by jaeger.thrift in compact mode
#   #   agent_port: 6831
#   # otel:
#   #   endpoint: hostname:4318
#   #   url_path: /v1/traces
#   #   compression: false
#   #   insecure: true
#   #   # timeout is in seconds
#   #   timeout: 10

# Enable purge _upload directories
upload_purging:
  enabled: true
  # remove files in _upload directories which exist for a period of time, default is one week.
  age: 168h
  # the interval of the purge operations
  interval: 24h
  dryrun: false

# Cache layer configurations
# If this feature enabled, harbor will cache the resource
# `project/project_metadata/repository/artifact/manifest` in the redis
# which can especially help to improve the performance of high concurrent
# manifest pulling.
# NOTICE
# If you are deploying Harbor in HA mode, make sure that all the harbor
# instances have the same behaviour, all with caching enabled or disabled,
# otherwise it can lead to potential data inconsistency.
cache:
  # not enabled by default
  enabled: false
  # keep cache for one day by default
  expire_hours: 24

# Harbor core configurations
# Uncomment to enable the following harbor core related configuration items.
# core:
#   # The provider for updating project quota(usage), there are 2 options, redis or db,
#   # by default is implemented by db but you can switch the updation via redis which
#   # can improve the performance of high concurrent pushing to the same project,
#   # and reduce the database connections spike and occupies.
#   # By redis will bring up some delay for quota usage updation for display, so only
#   # suggest switch provider to redis if you were ran into the db connections spike around
#   # the scenario of high concurrent pushing to same project, no improvement for other scenes.
#   quota_update_provider: redis # Or db

修改完配置，执行install.sh 命令安装

输入docker ps 查看 Harbor 服务状态

使用域名或ip访问web管理界面 用户名为admin 密码为配置文件里设置的密码

到此就安装成功了，接下来进行推送镜像测试,修改docker的daemon.json文件，在该文件中指定私有镜像仓库的地址 "insecure-registries": ["192.168.10.105"]

vim /etc/docker/daemon.json
{
  "registry-mirrors": [
        "https://registry.docker-cn.com",
        "https://registry-1.docker.io",
        "https://registry.hub.docker.com",
        "https://mirror.baidubce.com",
        "https://ccr.ccs.tencentyun.com"
    ],
   "insecure-registries": ["192.168.10.105"]
}

#修改完成后重启docker服务生效
systemctl daemon-reload
systemctl restart docker

使用docker login 测试登录私有镜像仓库

docker login -u admin --password 密码 域名或ip

推送镜像测试，使用push 命令可以将本地容器推送到远程仓库

docker push [OPTIONS] NAME[:tag]

首先登录仓库

从本地容器中创建镜像

docker commit 容器 hash library/mywebapp:1.0

打标机使用Tag 命令，用法如下

docker tag SOURCE_IMAGE[:TAG] TARGET_IMAGE[:TAG]

SOURCE_IMAGE[:TAG] 代表本地镜像 TARGET_IMAGE[:TAG] 代表想要标记的镜像名和Tag，例如：

docker tag [OPTIONS] IMAGE[:TAG] [REGISTRYHOST/][USERNAME/]NAME[:TAG]
docker tag {镜像名}:{tag} {Harbor地址}:{端口}/{Harbor项目名}/{自定义镜像名}/{自定义tag}

docker tag mywebapp:latest 192.168.10.105/library/mywebapp:latest
docker push 192.168.10.105/library/mywebapp:latest

登录Harbor的管理页面查看上传的镜像信息，可以看到已经成功上传到私有镜像仓库了

从私有镜像仓库拉取镜像