- ryanlee.coding·Last edited by ryanlee.coding on Jan 11, 2021Linked with GitHubContributed by
There is no commentSelect some text and then click Comment, or simply add a comment to this page from below to start a discussion.Heroku線上部署:在Rails專案中運行Python
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此專案在lib/tasks中編寫一個rake檔來運行Python的爬蟲
Image Not Showing Possible Reasons- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
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在根目錄添加檔案runtime.txt，寫入要運行的Python版本，這裡依照本機安裝的3.9.1
Image Not Showing Possible Reasons- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
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在根目錄添加檔案requirements.txt，裡面寫上所需要安裝的Python套件
Image Not Showing Possible Reasons- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
Procfile不確定要不要用（待測）
- 在Procfile告訴Heroku用gunicorn(python開發的WSGI工具)，執行python檔，my_app_name是主要python檔的名稱
web:gunicorn my_app_name:app
Image Not Showing Possible Reasons- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
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- 上傳部署至Heroku
- 在線上執行爬蟲
$ heroku run rake 你的rake檔案 - 會出現找不到Python的套件錯誤
Image Not Showing Possible Reasons- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
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在Heroku要同時運行不同的語言需要建立不同的buildpack，用
$ heroku buildpacks，可以看到現在專案只有ruby的buildpack
Image Not Showing Possible Reasons- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
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增加一個Python的buildpack，依照官網表示主要運作程式語言的buildpack要放在最後一項
$ heroku buildpacks:add --index 1 heroku/python
Image Not Showing Possible Reasons- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
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建立buildpack後要重新push一次，就可以看到正在安裝Python與套件
Image Not Showing Possible Reasons- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
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部署跑版問題
檢查方式，在postcss.config.js中註解掉 if (process.env.RAILS_ENV === 'production') {} 這樣可以將本機的開發環境變成與線上部署的運作環境相同 './app/**/**/*.html.erb' './app/**/*.scss'
Jan 26, 2021Rails專案使用ActiveStorage連接S3資料庫
Active Storage 可以支援各種後端服務（如 AWS S3），為 Active Record 模型提供檔案上傳和附件功能。 前置作業 先建立一個新專案來測試 $ rails new project_name 為專案安裝Active Storage功能，會在資料庫中建立兩個名為 active_storage_blobs 和 active_storage_attachments 的資料表 $ rails active_storage:install 用scaffold建立一個用來上傳的model取名為Upload $ rails generate scaffold Upload
Jan 26, 2021PostgresSQL 啟動異常
The data directory contains an old postmaster.pid file $ cd Library/Application\ Support/Postgres $ cd var-13 $ ls $ rm postmaster.pid
Jan 26, 2021CSS表格- < table >
<table> <caption>表格標題</caption>#每個table只有一個caption宣告 <thead> #表頭標籤 <tr> <th>預設粗體</th> #表頭單元 </tr> </thead> <tbody> #中間資料標籤 <tr> <td>資料</td> #資料內容
Jan 26, 2021
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