自訂 Apache 伺服器的遷移計畫

您應查看建立遷移作業後產生的遷移計畫檔案。請先自訂檔案再執行遷移作業。系統會使用遷移計畫的詳細資料,從來源中擷取工作負載容器構件。

本文件說明遷移作業的內容,以及執行遷移作業及產生部署構件前,您可能會考慮的客製化類型。

事前準備

本文假設您已建立遷移作業,並擁有遷移計畫檔案。

編輯遷移計畫

複製及分析檔案系統後,您可以在指定輸出路徑 ANALYSIS_OUTPUT_PATH/config.yaml 中建立的新目錄中找到遷移計畫。

視需要編輯遷移計畫並儲存變更。

遷移計畫結構

Apache2 工作負載的遷移計畫具有下列結構,您可以自訂這項結構,詳情請參閱下文。

apacheServer:
  # Apache configuration for directories on the system
  # Content is the configuration as understood by apache
  directories:
  - Content: |-
      Options FollowSymLinks
      AllowOverride None
      Require all denied
    Path: /
  - Content: |-
      AllowOverride None
      Require all granted
    Path: /usr/share
  - Content: |-
      Options Indexes FollowSymLinks
      AllowOverride None
      Require all granted
    Path: /var/www/
  - Content: "#\tOptions Indexes FollowSymLinks\n#\tAllowOverride None\n#\tRequire
      all granted"
    Path: /srv/
  - Content: |-
      #   AllowOverride None
      #   Require all denied
    Path: /
  # Environment variables used by apache
  envVars:
  - Value: www-data
    Var: APACHE_RUN_USER
  - Value: www-data
    Var: APACHE_RUN_GROUP
  - Value: /var/run/apache2$SUFFIX/apache2.pid
    Var: APACHE_PID_FILE
  - Value: /var/run/apache2$SUFFIX
    Var: APACHE_RUN_DIR
  - Value: /var/lock/apache2$SUFFIX
    Var: APACHE_LOCK_DIR
  - Value: /var/log/apache2$SUFFIX
    Var: APACHE_LOG_DIR
  - Value: C
    Var: LANG
  # The port the service will listen on
  listen:
  - "80"
  - "443"
  # Apache modules to be loaded and installed
  loadModules:
  - Module: access_compat_module
  - Module: alias_module
  - Module: auth_basic_module
  - Module: authn_core_module
  - Module: authn_file_module
  - Module: authz_core_module
  - Module: authz_host_module
  - Module: authz_user_module
  - Module: autoindex_module
  - Module: deflate_module
  - Module: dir_module
  - Module: env_module
  - Module: filter_module
  - Module: mime_module
  - Module: mpm_prefork_module
  - Module: negotiation_module
  - Module: php7_module
  - Module: proxy_module
  - Module: proxy_fcgi_module
  - Module: reqtimeout_module
  - Module: rewrite_module
  - Module: setenvif_module
  - Module: socache_shmcb_module
  - Module: ssl_module
  - Module: status_module
  # The sites to be extracted
  virtualHosts:
  - address: '*:80'
    documentRoot: /var/www/html
    # should the site be enabled in extracted VM
    includeInContainerImage: true
    originalConfig: |-
      # The ServerName directive sets the request scheme, hostname and port that
      # the server uses to identify itself. This is used when creating
      # redirection URLs. In the context of virtual hosts, the ServerName
      # specifies what hostname must appear in the request's Host: header to
      # match this virtual host. For the default virtual host (this file) this
      # value is not decisive as it is used as a last resort host regardless.
      # However, you must set it for any further virtual host explicitly.
      #ServerName www.example.com

      ServerAdmin webmaster@localhost
      DocumentRoot /var/www/html

      # Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
      # error, crit, alert, emerg.
      # It is also possible to configure the loglevel for particular
      # modules, e.g.
      #LogLevel info ssl:warn

      ErrorLog ${APACHE_LOG_DIR}/error.log
      CustomLog ${APACHE_LOG_DIR}/access.log combined

      # For most configuration files from conf-available/, which are
      # enabled or disabled at a global level, it is possible to
      # include a line for only one particular virtual host. For example the
      # following line enables the CGI configuration for this host only
      # after it has been globally disabled with "a2disconf".
      #Include conf-available/serve-cgi-bin.conf
    serverName: server-0
  - address: '*:443'
    # The location of the site content (will be copied to the same location the extracted container)
    documentRoot: /var/www/html
    includeInContainerImage: false
    originalConfig: |-
      ServerAdmin admin@example.com
      DocumentRoot /var/www/html
      SSLEngine on
      SSLCertificateFile /etc/ssl/certs/c2d-temporary-self-signed-cert.pem
      SSLCertificateKeyFile /etc/ssl/private/c2d-temporary-self-signed-cert.key

      <Directory /var/www/html>
      Options -Indexes
      AllowOverride FileInfo
      </Directory>
    serverName: server-1
php:
  # list of php modules to be installed in the extracted container (add/remove entries to change what will be installed)
  modules:
  - calendar
  - ctype
  - curl
  - exif
  - ffi
  - fileinfo
  - filter
  - gd
  - gettext
  - iconv
  - json
  - mysqli
  - pcntl
  - pdo
  - pdo_mysql
  - posix
  - shmop
  - sockets
  - sysvmsg
  - sysvsem
  - sysvshm
  - tokenizer
  - xsl

設定目錄的安全性政策

directories 部分,您可以套用特定設定,在特定目錄中強制執行安全性政策。如要填入及編輯這個計畫的部分,請使用 Directory 指示語言的語法

載入及安裝模組

您可以在 loadModules 部分指定要載入及安裝的模組。Migrate to Containers 會掃描 LoadModule 指令的原始設定,自動偵測所需的模組。

支援的模組

access_compat_module
alias_module
auth_basic_module
authn_core_module
authn_file_module
authz_core_module
authz_host_module
authz_user_module
autoindex_module
deflate_module
dir_module
env_module
expires_module
filter_module
mime_module
mpm_prefork_module
negotiation_module
php7_module
proxy_fcgi_module
proxy_module
remoteip_module
reqtimeout_module
rewrite_module
setenvif_module
socache_shmcb_module
ssl_module
status_module

指定及設定虛擬主機

virtualHosts 部分中,Migrate to Containers 會複製 <VirtualHost></VirtualHost> 區塊中所包圍的所有指示。

address 欄位中,網站的 IP 位址已替換為 *

originalConfig 下方,DocumentRoot 欄位會指定 Apache 提供要求檔案的路徑。對於 DocumentRoot 中指定的每個路徑,Migrate to Containers 會執行以下操作:

  • 它會將每個路徑壓縮為個別的 tar 檔案。
  • 它會複製成果中的 tar 檔案以供解壓縮。
  • 它會使用 Dockerfile 中的 ADD --chown 選項,變更 Docker 映像檔中使用者的權限。

查看 PHP 擴充功能

Migrate to Containers 會自動偵測 VM 中安裝的 PHP 模組,並將這些模組納入遷移計畫的 php 部分。請查看這個部分,視需要新增或移除模組。

後續步驟