通过 docker 使用 postgres 设置 nextcloud

Question

我想通过 docker 使用 postgres 在本地设置 nextcloud。我能够这样做而无需尝试使用 postgres（即使用默认的 sqllite）但是我运行在将 postgres docker 与 nc 图像结合使用时遇到问题.

我的笔记本电脑是 Ubuntu 18.04.

目标：我想在本地设置一个容器化的设置，以便我可以随时轻松（或至少在某种程度上轻松）迁移到云提供商。我正在为 postgres 和 nc 设置音量，以便我可以在我选择时将所有内容传输到远程。

这是我的仓库，其中包括 Dockerfile 和 docker-compose：

Dockerfile:（请注意，我添加了 smbclient，因为我学到了艰难的方法，我需要它来安装我想使用的外部存储应用程序）

FROM nextcloud:production-apache
RUN apt-get update && apt-get install -y \
   smbclient

我的docker-撰写文件：

version: "3.5"
services:
  nextcloud:
    build:
      context: .
      dockerfile: ./Dockerfile
    ports:
      - "8080:80"
    volumes:
      - $PROJECTS_DIR/Personal/mc1/nextcloud:/var/www/html
      - $PROJECTS_DIR/Personal/mc1/apps:/var/www/html/custom_apps
      - $PROJECTS_DIR/Personal/mc1/config:/var/www/html/config 
      - $PROJECTS_DIR/Personal/mc1/data:/var/www/html/data
    environment:
      - POSTGRES_HOST=nextcloud_db_1 # service name for postgres as assigned by Docker
      - POSTGRES_DB=nextcloud_db
      - POSTGRES_USER=postgres # will access postgres over 5432
      - POSTGRES_PASSWORD=testing123
    depends_on:
      - db

  db:
    image: postgres
    restart: always
    volumes:
      - ./postgres-data:/var/lib/postgresql/data
    environment:
      - POSTGRES_DB=nextcloud_db
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=testing123

我不太确定如何设置它并从另一个 post here.

那里借来的

结果：

在 repo 中有一个终端：

docker-compose build
docker-compose up -d

然后我可以在 http://localhost:8080/index.php 访问 nc select 'postgres' 并从我的 [=] 输入 postgres 详细信息55=]-撰写：

在上面的屏幕截图中输入所有详细信息后，当我单击 'finish setup' 时出现此错误屏幕：

我在卷的任何地方搜索了一个名为 'log' 的文件，并找到了 data/nextcloud.log。这是它显示的内容：

{"reqId":"WqeSp92UPr935aMdZ0XY","level":2,"time":"2021-01-17T23:32:25+00:00","remoteAddr":"192.168.32.1","user":"--","app":"no app in context","method":"POST","url":"/index.php","message":"Host localhost was not connected to because it violates local access rules","userAgent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0","version":""}
{"reqId":"WqeSp92UPr935aMdZ0XY","level":2,"time":"2021-01-17T23:32:25+00:00","remoteAddr":"192.168.32.1","user":"--","app":"no app in context","method":"POST","url":"/index.php","message":"Host localhost was not connected to because it violates local access rules","userAgent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0","version":""}
{"reqId":"WqeSp92UPr935aMdZ0XY","level":3,"time":"2021-01-17T23:32:26+00:00","remoteAddr":"192.168.32.1","user":"--","app":"no app in context","method":"POST","url":"/index.php","message":{"Exception":"Doctrine\DBAL\DBALException","Message":"Failed to connect to the database: An exception occurred in driver: SQLSTATE[08006] [7] could not translate host name \"nextcloud_db_1\" to address: Temporary failure in name resolution","Code":0,"Trace":[{"file":"/var/www/html/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php","line":428,"function":"connect","class":"OC\DB\Connection","type":"->","args":[]},{"file":"/var/www/html/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php","line":388,"function":"getDatabasePlatformVersion","class":"Doctrine\DBAL\Connection","type":"->","args":[]},{"file":"/var/www/html/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php","line":330,"function":"detectDatabasePlatform","class":"Doctrine\DBAL\Connection","type":"->","args":[]},{"file":"/var/www/html/lib/private/DB/QueryBuilder/QueryBuilder.php","line":119,"function":"getDatabasePlatform","class":"Doctrine\DBAL\Connection","type":"->","args":[]},{"file":"/var/www/html/lib/private/Setup/PostgreSQL.php","line":54,"function":"expr","class":"OC\DB\QueryBuilder\QueryBuilder","type":"->","args":[]},{"file":"/var/www/html/lib/private/Setup.php","line":359,"function":"setupDatabase","class":"OC\Setup\PostgreSQL","type":"->","args":["rstudio"]},{"file":"/var/www/html/core/Controller/SetupController.php","line":75,"function":"install","class":"OC\Setup","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/lib/base.php","line":946,"function":"run","class":"OC\Core\Controller\SetupController","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/index.php","line":37,"function":"handleRequest","class":"OC","type":"::","args":[]}],"File":"/var/www/html/lib/private/DB/Connection.php","Line":72,"CustomMessage":"--"},"userAgent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0","version":"20.0.4.0"}
{"reqId":"WqeSp92UPr935aMdZ0XY","level":2,"time":"2021-01-17T23:32:26+00:00","remoteAddr":"192.168.32.1","user":"--","app":"no app in context","method":"POST","url":"/index.php","message":"Error trying to connect as \"postgres\", assuming database is setup and tables need to be created","userAgent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0","version":"20.0.4.0"}
{"reqId":"WqeSp92UPr935aMdZ0XY","level":3,"time":"2021-01-17T23:32:26+00:00","remoteAddr":"192.168.32.1","user":"--","app":"no app in context","method":"POST","url":"/index.php","message":{"Exception":"Doctrine\DBAL\DBALException","Message":"Failed to connect to the database: An exception occurred in driver: SQLSTATE[08006] [7] could not translate host name \"nextcloud_db_1\" to address: Temporary failure in name resolution","Code":0,"Trace":[{"file":"/var/www/html/lib/private/Setup/PostgreSQL.php","line":98,"function":"connect","class":"OC\DB\Connection","type":"->","args":[]},{"file":"/var/www/html/lib/private/Setup.php","line":359,"function":"setupDatabase","class":"OC\Setup\PostgreSQL","type":"->","args":["rstudio"]},{"file":"/var/www/html/core/Controller/SetupController.php","line":75,"function":"install","class":"OC\Setup","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/lib/base.php","line":946,"function":"run","class":"OC\Core\Controller\SetupController","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/index.php","line":37,"function":"handleRequest","class":"OC","type":"::","args":[]}],"File":"/var/www/html/lib/private/DB/Connection.php","Line":72,"CustomMessage":"--"},"userAgent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0","version":"20.0.4.0"}
{"reqId":"webBnsoANvgRaansmKbZ","level":3,"time":"2021-01-17T23:32:41+00:00","remoteAddr":"192.168.32.1","user":"--","app":"index","method":"POST","url":"/index.php","message":{"Exception":"OC\DatabaseException","Message":"An exception occurred while executing 'SHOW SERVER_VERSION':\n\nFailed to connect to the database: An exception occurred in driver: SQLSTATE[08006] [7] could not translate host name \"nextcloud_db_1\" to address: Temporary failure in name resolution","Code":0,"Trace":[{"file":"/var/www/html/lib/private/legacy/OC_DB.php","line":143,"function":"prepare","class":"OC_DB","type":"::","args":["SHOW SERVER_VERSION",null,null]},{"file":"/var/www/html/lib/private/legacy/OC_Util.php","line":984,"function":"executeAudited","class":"OC_DB","type":"::","args":[{"sql":"SHOW SERVER_VERSION","limit":null,"offset":null}]},{"file":"/var/www/html/lib/private/legacy/OC_Util.php","line":964,"function":"checkDatabaseVersion","class":"OC_Util","type":"::","args":[]},{"file":"/var/www/html/lib/base.php","line":660,"function":"checkServer","class":"OC_Util","type":"::","args":[{"__class__":"OC\SystemConfig"}]},{"file":"/var/www/html/lib/base.php","line":1091,"function":"init","class":"OC","type":"::","args":[]},{"file":"/var/www/html/index.php","line":35,"args":["/var/www/html/lib/base.php"],"function":"require_once"}],"File":"/var/www/html/lib/private/legacy/OC_DB.php","Line":73,"CustomMessage":"--"},"userAgent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0","version":"20.0.4.0"}

是我的设置声音还是错误？我对我在 docker-compose 中添加的 postgres 没有信心，或者我是否做对了？

如何使用 postgres 使用 docker 和卷在本地设置 nextcloud，以便我可以根据选择将整个 nextcloud 设置从云提供商转移到云提供商？

Answer 1

我很确定问题出在这一行：

- POSTGRES_HOST=nextcloud_db_1 # service name for postgres as assigned by Docker

如果您正在做的目录 docker-compose up 没有调用“nextcloud”，它将无法工作。

例如：如果您在“nc”目录中，则必须将主机设置为 nc_db_1

但是还有一个选择：

您可以设置一个主机名来避免此类问题

docker-compose.yml

的例子

version: "3.5"
services:
  nextcloud:
    build:
      context: .
      dockerfile: ./Dockerfile
    ports:
      - "8080:80"
    environment:
      - POSTGRES_HOST=nc-postgres  # HERE
      - POSTGRES_DB=nextcloud_db
      - POSTGRES_USER=postgres 
      - POSTGRES_PASSWORD=testing123
    depends_on:
      - db

  db:
    image: postgres
    restart: always
    hostname: 'nc-postgres'  # AND HERE 
    volumes:
      - ./postgres-data:/var/lib/postgresql/data
    environment:
      - POSTGRES_DB=nextcloud_db
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=testing123

结果：

通过 docker 使用 postgres 设置 nextcloud

Set up nextcloud with postgres both via docker

docker

docker-compose

nextcloud