# Cloud storage 串接 Cloud CDN

## Cloud storage

Cloud storage 為類似 S3 的服務，串接 Cloud CDN 後可做到檔案快取。

上傳檔案後設定權限為 public 就會產生可下載的 URL

![](/files/-MMKZ2rXOqgoVptHvWuT)

## Cloud CDN

{% embed url="<https://cloud.google.com/cdn/docs/resources?hl=zh-tw>" %}

需要先建立 後端 bucket 與 load balancing

![](/files/-MMKZw2loubIoSuiavK0)

然後

![](/files/-MMKZzr9M8ZD8x26_KIz)

之後會給你一個 IP

![](/files/-MMK_5SGtMG_9siJLT6A)

原本 cloud storage&#x20;

```
https://storage.googleapis.com/<bucket name>/<object name>
```

改為以下即可

```
<cloud cdn ip>/<object name>
```

> 如果直接設定 http load balancing 然後有打勾 cdn 之後也會出現在 cloud cdn 看到新增東西出來，但可能會連不上去，建議還是在cloud cdn 建立

## 權限設定

cloud storage 可以設定 domain 權限，或是也可以產生 sign URL 來讓特定權限的帳戶存取<https://cloud.google.com/cdn/docs/using-signed-urls>

## 相關文章

{% embed url="<https://cloud.google.com/cdn/docs/setting-up-cdn-with-bucket>" %}

<https://medium.com/techintoo/serving-static-files-using-google-cloud-cdn-storage-bucket-db1287cb5e40>


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