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當 Rails 遇上 Docker,環境部署原來是這樣!? - 詹昇 === {%hackmd LcL4-VI0SGitSiINTuy4rA %} > 請從這裡開始 > ## Docker 特性 在 Docker 跑的 process PID 會從一開始算,但是在 Host 也會有一樣的 process,只是 PID 不同。在 Host kill 掉,在 Docker 裡面也會跟著消失 ## Docker 會使用到的東西 * Dockerfile * Docker Image * Docker Container 有 Dockerfile 做出 Image 然後就能產生一堆 container 還有一個檔案叫做 docker-compose 會告訴每一個 container 該怎麼開機 ## 預想操作方式 在 Local 端做好 Docker Image 上傳到線上儲存庫(Ex: Docker Hub)再下載,,接著用 Docker-compose.yml 開機 ## 範例製作方式 1. 產生出一個網站 2. 找一個 Docker Image(找需要做最少額外設定) 3. 打指令,見圖 ![](https://i.imgur.com/5EZeTxn.jpg) 4. 設定 docker-compose.yml ![](https://i.imgur.com/KAX38YI.jpg) :::warning 這邊用 Volumes 避免 container 週期結束時能把資料留在 Host OS ::: 完整範例檔案 ![完整範例檔案](https://i.imgur.com/agPmLWQ.jpg) 打者按:接下來是 CloudFlare 相關設定,不在這邊贅述 >為了防止 db 的 container run 起來但實際上服務還沒啟動完成 ```yaml= restart: always depends_on: - db ``` ### 加上 nginx 需要客製化的 image * ``` proxy_pass proxy_set_header ``` ## 相關文章 * [用 Docker 部署 Rails,原來是這樣!? - 五倍紅寶石](https://5xruby.tw/posts/deploying-your-docker-rails-app/) * [自動產生Docker,一鍵佈署不是夢!? - 五倍紅寶石](https://5xruby.tw/posts/bankai-docker/) >講者速度好快 Orz 加油 ###### tags: `COSCUP2019` `Ruby` `IB301` > 投影片連結 > https://speakerdeck.com/shes50103/dang-rails-yu-shang-docker-huan-jing-bu-shu-yuan-lai-shi-zhe-yang

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