writing-skills
writing-skills
Use when creating new skills, editing existing skills, or verifying skills work before deployment
deploy-shiny-appDeploy Shiny applications to shinyapps.io, Posit Connect, or Docker containers. Covers rsconnect configuration, manifest generation, Dockerfile creation, and deployment verification. Use when publishing a Shiny app for external or internal users, moving from local development to a hosted environment, containerizing a Shiny app for Kubernetes or Docker deplo…
Independent GitHub snapshot · Automated classification · Original documentation governs
部署 Shiny 應用於 shinyapps.io、Posit Connect 或 Docker 容器。
確保應用自足且可部署:
# Check for missing dependencies
rsconnect::appDependencies("path/to/app")
# For golem apps, ensure DESCRIPTION lists all Imports
devtools::check()
# Verify the app runs cleanly
shiny::runApp("path/to/app")
驗此等檔案存在:
app.R(或 ui.R + server.R)renv.lock(建議以供可重現之部署).Rprofile 於生產中不調 mcptools::mcp_session()預期: 應用於本地無誤執行,所有依賴已捕獲。
失敗時: 若 appDependencies() 報缺失套件,裝之並更 renv.lock。若應用用系統函式庫(如 gdal、curl),記之以供 Docker 路徑。
# One-time account setup
rsconnect::setAccountInfo(
name = "your-account",
token = Sys.getenv("SHINYAPPS_TOKEN"),
secret = Sys.getenv("SHINYAPPS_SECRET")
)
# Deploy
rsconnect::deployApp(
appDir = "path/to/app",
appName = "my-app",
appTitle = "My Application",
account = "your-account",
forceUpdate = TRUE
)
將憑證存於 .Renviron(絕不於程式碼中):
# .Renviron
SHINYAPPS_TOKEN=your_token_here
SHINYAPPS_SECRET=your_secret_here
預期: 應用已部署,可於 https://your-account.shinyapps.io/my-app/ 存取。
失敗時: 若認證失敗,於 shinyapps.io 儀表板 > Account > Tokens 重生令牌。若伺服器上套件安裝失敗,查所有套件於 CRAN 可得——shinyapps.io 預設無法自 GitHub 安裝。
# Register server (one-time)
rsconnect::addServer(
url = "https://connect.example.com",
name = "production"
)
# Authenticate (one-time)
rsconnect::connectApiUser(
account = "your-username",
server = "production",
apiKey = Sys.getenv("CONNECT_API_KEY")
)
# Deploy
rsconnect::deployApp(
appDir = "path/to/app",
appName = "my-app",
server = "production",
account = "your-username"
)
預期: 應用已部署,可於 Posit Connect 實例上存取。
失敗時: 若伺服器拒絕連線,驗 API 金鑰與伺服器 URL。若套件安裝失敗,查 Connect 可達所需之儲存庫(CRAN、內部類 CRAN 之儲存庫)。
建 Dockerfile:
FROM rocker/shiny-verse:4.4.0
# Install system dependencies
RUN apt-get update && apt-get install -y \
libcurl4-openssl-dev \
libssl-dev \
libxml2-dev \
&& rm -rf /var/lib/apt/lists/*
# Install R packages
RUN R -e "install.packages(c('shiny', 'bslib', 'DT', 'plotly'))"
# Copy app
COPY . /srv/shiny-server/myapp/
# Configure Shiny Server
COPY shiny-server.conf /etc/shiny-server/shiny-server.conf
# Expose port
EXPOSE 3838
# Run
CMD ["/usr/bin/shiny-server"]
建 shiny-server.conf:
run_as shiny;
server {
listen 3838;
location / {
site_dir /srv/shiny-server/myapp;
log_dir /var/log/shiny-server;
directory_index on;
}
}
建並執行:
docker build -t myapp:latest .
docker run -p 3838:3838 myapp:latest
預期: 應用於 http://localhost:3838 可達。
失敗時: 若於套件安裝時建置失敗,加缺失之系統函式庫於 apt-get install 行。若應用未載,查 Shiny Server 日誌:docker exec <container> cat /var/log/shiny-server/*.log。
# Check the deployed URL responds
response <- httr::GET("https://your-app-url/")
httr::status_code(response) # Should be 200
# For Docker
response <- httr::GET("http://localhost:3838/")
httr::status_code(response)
人工驗證清單:
預期: 應用以 HTTP 200 回應,所有功能運作。
失敗時: 查特定部署平台之伺服器日誌。常見問題:生產中環境變數未設、資料庫連線用 localhost 而非生產 URL、或僅於本地存在之檔案路徑。
於儀表板 https://www.shinyapps.io/admin/#/applications 監之。
# Check deployment status via API
connectapi::connect(
server = "https://connect.example.com",
api_key = Sys.getenv("CONNECT_API_KEY")
)
於 Dockerfile 加健康檢查:
HEALTHCHECK --interval=30s --timeout=10s --retries=3 \
CMD curl -f http://localhost:3838/ || exit 1
預期: 部署目標之監控已配。
失敗時: 若健康檢查間歇失敗,增超時值。Shiny 應用於初始載入時可能回應慢。
.Renviron 或 CI 秘鑰,非於程式碼system.file()(供套件資料)或環境變數(供外部資源)替絕對路徑。mcptools::mcp_session() 或 devtools 之 .Rprofile。用條件載入或分離設定檔。apt-get install。remotes 套件與部署中之顯式安裝。scaffold-shiny-app — 部署前建應用結構create-r-dockerfile — R 專案之詳細 Docker 配置setup-docker-compose — Shiny 與資料庫之多容器設定setup-github-actions-ci — 含自動化部署之 CI/CDoptimize-shiny-performance — 部署至生產前之性能調優