takaakikakei/demo-streamlit-langchain

LangChainをStreamlit上で動かすデモアプリ

demo-streamlit-langchain

LangChain を Streamlit 上で動かすデモアプリ

Deploy

Running Locally

1. Clone Repo

git clone # FIXME

2. Install Dependencies

poetry install

3. Provide OpenAI API Key

Create a .env.local file in the root of the repo with Env:

OPENAI_API_KEY=""
# ..snip..

4. Run App

poetry shell
streamlit run home.py

5. Use It

You should be able to start chatting.

Running Cloud Run

1. Clone Repo

git clone # FIXME

2. Install Dependencies

poetry install

3. Prepare Google Cloud

Authenticate and switch projects.

gcloud auth login
gcloud projects list
gcloud config set project <your-project-id>

Enable Services.

gcloud services enable compute.googleapis.com run.googleapis.com \
    artifactregistry.googleapis.com cloudbuild.googleapis.com secretmanager.googleapis.com

4. Set Secrets

Create secrets and add their values.

# シークレット作成
gcloud secrets create OPENAI_API_KEY --replication-policy="automatic"

# 値を設定
echo -n "sk-xxx" | gcloud secrets versions add OPENAI_API_KEY --data-file=-

# Service account を確認
gcloud run services describe demo-streamlit-langchain --platform managed --region asia-northeast1

# Cloud Run にシークレットへのアクセスを許可する。SERVICE_ACCOUNT_EMAIL は上記で確認した Service account に置き換え。
gcloud secrets add-iam-policy-binding OPENAI_API_KEY \
  --member='serviceAccount:SERVICE_ACCOUNT_EMAIL' \
  --role='roles/secretmanager.secretAccessor'

# 必要に応じて他のシークレットも同様に設定

5. Run App

Deploy.

gcloud run deploy demo-streamlit-langchain --region "asia-northeast1" --source . \
    --allow-unauthenticated --quiet --update-secrets=OPENAI_API_KEY=OPENAI_API_KEY:latest

refs: https://zenn.dev/google_cloud_jp/articles/streamlit-01-hello

参考

認証機能が提供されていないので、デプロイする際は、デプロイ先のセキュリティサービス or サードパーティのモジュールを利用推奨。

• https://zenn.dev/google_cloud_jp/articles/streamlit-02-firebase
• https://zenn.dev/matken/articles/restrict-cloud-run-to-in-house
• https://github.com/mkhorasani/Streamlit-Authenticator