Azure雑記2

SAS
1. generate_blob_sas
2. 使ってみた
  1. 事前準備
    1. Azurite 起動
    2. Azure Storage Explorerで画像アップロード
  2. ソースコード with FastAPI

SAS

generate_blob_sas

How can I generate an Azure blob SAS URL in Python?

I am trying to generate blob SAS URLs on the fly using the azure-storage-blob package. This solution only works if you have the now-deprecated azure-storage pac...

Retrieval and display from Azure Blob Storage, to Flask Python, to HTML/JS?

I have a simple Flask Azure-webapp which I would like the user to be able to upload images. The images are then stored in an Azure Blob. import os, uuid from a...

結局テストの書き方が役立ちそう

https://github.com/Azure/azure-sdk-for-python/blob/main/sdk/storage/azure-storage-blob/tests/test_common_blob.py

使ってみた

事前準備

Azurite 起動

wslにて

user1@amebb:~/acre/blob$ mkdir azurite_data
user1@amebb:~/acre/blob$ mkdir azurite_log
user1@amebb:~/acre/blob$ azurite --silent --location azurite_data --debug azurite_log/debug0504.log
Azurite Blob service is starting at http://127.0.0.1:10000
Azurite Blob service is successfully listening at http://127.0.0.1:10000
Azurite Queue service is starting at http://127.0.0.1:10001
Azurite Queue service is successfully listening at http://127.0.0.1:10001
Azurite Table service is starting at http://127.0.0.1:10002
Azurite Table service is successfully listening at http://127.0.0.1:10002

Azure Storage Explorerで画像アップロード

Azure Storage Explorer にてBlobストレージに画像をアップロード

Windows10側で Azure Storage Explorer を起動し、

左ペイン　＞　ローカルで接続済み　＞　ストレージアカウント　＞　エミュレータ既定のポート(Key) ＞　Blob Containers ＞　右クリックしコンテナを作成にて

コンテナを作成。名前の例 container0504 （ソースコードで使う）

右ペイン　＞　jpg画像をアップロードしておく。画像例 tabe-2023images.jpg （ソースコードで使う）

ソースコード with FastAPI

GitHub - hotchrome2/azure-blob-sas0505

Contribute to hotchrome2/azure-blob-sas0505 development by creating an account on GitHub.

user1@amebb:~/acre/camp$ tree -L 2
.
├── Pipfile
├── Pipfile.lock
├── __init__.py
├── __pycache__
│   └── main.cpython-39.pyc
├── db
│   ├── __init__.py
│   └── blobdb.py
└── src
    ├── __init__.py
    └── main.py

3 directories, 8 files
user1@amebb:~/acre/camp$ cat Pipfile
[[source]]
url = "https://pypi.org/simple"
verify_ssl = true
name = "pypi"

[packages]
fastapi = {extras = ["all"], version = "*"}
azure-storage-blob = "*"

[dev-packages]

[requires]
python_version = "3.9"
user1@amebb:~/acre/camp$ cat db/blobdb.py
# import os
from datetime import datetime, timedelta
from azure.storage.blob import (
    BlobServiceClient, BlobSasPermissions, BlobClient, ContainerClient, __version__, generate_blob_sas
)


class BlobDB:

    def try_azure_blob(self):
        # connect_str = os.getenv('AZURE_STORAGE_CONNECTION_STRING')
        # Blob service にのみ接続する場合、接続文字列は次のようになります。
        # DefaultEndpointsProtocol=http;AccountName=devstoreaccount1;AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==;BlobEndpoint=http://127.0.0.1:10000/devstoreaccount1;
        connect_str = "DefaultEndpointsProtocol=http;AccountName=devstoreaccount1;AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==;BlobEndpoint=http://127.0.0.1:10000/devstoreaccount1;"
        blob_service_client = BlobServiceClient.from_connection_string(connect_str)
        container_name = "container0504"
        blob_name = "tabe-2023images.jpg"
        blob_client = blob_service_client.get_blob_client(container=container_name, blob=blob_name)
        # if blob_client.exists():
        #     return "Exist."
        # return "False."


        token = generate_blob_sas(
            blob_client.account_name,
            blob_client.container_name,
            blob_client.blob_name,
            snapshot=blob_client.snapshot,
            account_key=blob_client.credential.account_key,
            permission=BlobSasPermissions(read=True),
            expiry=datetime.utcnow() + timedelta(hours=1),
        )

        sas_blob = BlobClient.from_blob_url(blob_client.url, credential=token)
        return sas_blob.url
user1@amebb:~/acre/camp$ cat src/main.py
from fastapi import FastAPI

from db.blobdb import BlobDB


app = FastAPI()


@app.get("/")
async def root():
    return {"message": "Hello World"}

@app.get("/blobdb/")
def try_blob():
    blobdb = BlobDB()
    b_ver_str = blobdb.try_azure_blob()
    return {"version": b_ver_str}
user1@amebb:~/acre/camp$ pipenv run uvicorn src.main:app --reload

ブラウザで http://127.0.0.1:8000/blobdb/

レスポンスはURL文字列なのでそのURLをブラウザで見ると画像が表示された。よし。