在雲端運行部署無狀態容器

我將示範如何在cloud run上部署一個簡單的容器。

Cloud Run 是一個完全託管的平台，可讓您直接在 Google 可擴展的基礎架構之上運行程式碼。 Cloud Run 簡單、自動化，旨在提高您的工作效率。

1. 使用 fastapi 函式庫 (python) 建立一個簡單的 hello world 應用程式
2. 容器化應用程式
3. 使用 GCP 設定工作流程
4. 透過 github 工作流程將容器部署到雲端運行服務上

我按照官方 fastapi 文件啟動了一個 hello world 應用程式
建立requirements.txt檔案

fastapi[standard]
pydantic>=2.7.0,<3.0.0

• 建立app目錄並進入
• 建立一個空檔案init.py
• 使用以下內容建立 main.py 檔案：

from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}

建立 Dockerfile

FROM python:3.9

WORKDIR /code

COPY ./requirements.txt /code/requirements.txt

RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

COPY ./app /code/app

CMD ["fastapi", "run", "app/main.py", "--port", "80"]

GitHub 操作
為了讓 GitHub 操作流程能夠取得 YAML 文件，它需要有特定的儲存位置。每個使用操作的儲存庫都需要一個名為 /.github/workflows

的目錄結構

*使用 GCP 更多資訊配置此工作流程 *

# This workflow build and push a Docker container to Google Artifact Registry
# and deploy it on Cloud Run when a commit is pushed to the $default-branch
# branch.
#
# To configure this workflow:
#
# 1. Enable the following Google Cloud APIs:
#
#    - Artifact Registry (artifactregistry.googleapis.com)
#    - Cloud Run (run.googleapis.com)
#    - IAM Credentials API (iamcredentials.googleapis.com)
#
#    You can learn more about enabling APIs at
#    https://support.google.com/googleapi/answer/6158841.
#
# 2. Create and configure a Workload Identity Provider for GitHub:
#    https://github.com/google-github-actions/auth#preferred-direct-workload-identity-federation.
#
#    Depending on how you authenticate, you will need to grant an IAM principal
#    permissions on Google Cloud:
#
#    - Artifact Registry Administrator (roles/artifactregistry.admin)
#    - Cloud Run Developer (roles/run.developer)
#
#    You can learn more about setting IAM permissions at
#    https://cloud.google.com/iam/docs/manage-access-other-resources
#
# 3. Change the values in the "env" block to match your values.

建立檔案 google-cloudrun-docker.yml

name: 'Build and Deploy to Cloud Run'

on:
  push:
    branches:
      - '$default-branch'

env:
  PROJECT_ID: 'my-project' # TODO: update to your Google Cloud project ID
  REGION: 'us-central1' # TODO: update to your region
  SERVICE: 'my-service' # TODO: update to your service name
  WORKLOAD_IDENTITY_PROVIDER: 'projects/123456789/locations/global/workloadIdentityPools/my-pool/providers/my-provider' # TODO: update to your workload identity provider

jobs:
  deploy:
    runs-on: 'ubuntu-latest'

    permissions:
      contents: 'read'
      id-token: 'write'

    steps:
      - name: 'Checkout'
        uses: 'actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332' # actions/checkout@v4

      # Configure Workload Identity Federation and generate an access token.
      #
      # See https://github.com/google-github-actions/auth for more options,
      # including authenticating via a JSON credentials file.
      - id: 'auth'
        name: 'Authenticate to Google Cloud'
        uses: 'google-github-actions/auth@f112390a2df9932162083945e46d439060d66ec2' # google-github-actions/auth@v2
        with:
          workload_identity_provider: '${{ env.WORKLOAD_IDENTITY_PROVIDER }}'

      # BEGIN - Docker auth and build
      #
      # If you already have a container image, you can omit these steps.
      - name: 'Docker Auth'
        uses: 'docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567' # docker/login-action@v3
        with:
          username: 'oauth2accesstoken'
          password: '${{ steps.auth.outputs.auth_token }}'
          registry: '${{ env.REGION }}-docker.pkg.dev'

      - name: 'Build and Push Container'
        run: |-
          DOCKER_TAG="$${{ env.REGION }}-docker.pkg.dev/${{ env.PROJECT_ID }}/${{ env.SERVICE }}:${{ github.sha }}"
          docker build --tag "${DOCKER_TAG}" .
          docker push "${DOCKER_TAG}"
      - name: 'Deploy to Cloud Run'

        # END - Docker auth and build

        uses: 'google-github-actions/deploy-cloudrun@33553064113a37d688aa6937bacbdc481580be17' # google-github-actions/deploy-cloudrun@v2
        with:
          service: '${{ env.SERVICE }}'
          region: '${{ env.REGION }}'
          # NOTE: If using a pre-built image, update the image name below:

          image: '${{ env.REGION }}-docker.pkg.dev/${{ env.PROJECT_ID }}/${{ env.SERVICE }}:${{ github.sha }}'
      # If required, use the Cloud Run URL output in later steps
      - name: 'Show output'
        run: |2-

          echo ${{ steps.deploy.outputs.url }}

目錄結構

您現在應該具有以下目錄結構：

├── app
│   ├── __init__.py
│   └── main.py
├── Dockerfile
└── requirements.txt
└── requirements.txt
├── .github
│   ├── workflows
         ├── google-cloudrun-docker.yml

> 1. Create a new repo in gitHUb
> 2. Push your exisisting code to new repository on default branch

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