部署 ShinyProxy

部 ShinyProxy 以宿多容器化之 Shiny 應用，具認證與用量跟蹤。

用時

• 於單入口宿多 Shiny 應用
• 需各應用獨之認證與訪問控
• 部 Shiny 應用為獨立 Docker 容器
• 擴至單應用部署（shinyapps.io 或獨立 Docker）之上
• 需用量析與審計日誌

入

• 必要：一或多 Shiny 應用以部
• 必要：已裝 Docker 之伺
• 可選：認證供應者（LDAP、OpenID、社交）
• 可選：域名與 SSL 證書
• 可選：容器編排者（Docker 或 Kubernetes）

法

第一步：建 Shiny 應用 Docker 鏡像

各 Shiny 應用需其自鏡像。Shiny 應用之 Dockerfile 例：

FROM rocker/shiny:4.5.0

RUN apt-get update && apt-get install -y \
    libcurl4-openssl-dev \
    libssl-dev \
    && rm -rf /var/lib/apt/lists/*

RUN R -e "install.packages(c('shiny', 'bslib', 'DT', 'dplyr'), \
    repos='https://cloud.r-project.org/')"

COPY app/ /srv/shiny-server/app/

RUN chown -R shiny:shiny /srv/shiny-server/app

USER shiny
EXPOSE 3838
CMD ["R", "-e", "shiny::runApp('/srv/shiny-server/app', host='0.0.0.0', port=3838)"]

建並測各應用：

docker build -t myorg/dashboard:latest ./apps/dashboard/
docker run --rm -p 3838:3838 myorg/dashboard:latest

得： 各 Shiny 應用於其自容器獨立行。

第二步：配 ShinyProxy

application.yml：

proxy:
  title: "Shiny Applications"
  port: 8080
  container-backend: docker
  docker:
    internal-networking: true
  authentication: simple
  admin-groups: admins

  users:
    - name: admin
      password: admin_password
      groups: admins
    - name: analyst
      password: analyst_password
      groups: users

  specs:
    - id: dashboard
      display-name: "Analytics Dashboard"
      description: "Interactive data analysis dashboard"
      container-image: myorg/dashboard:latest
      container-cmd: ["R", "-e", "shiny::runApp('/srv/shiny-server/app', host='0.0.0.0', port=3838)"]
      container-network: shinyproxy-net
      port: 3838
      access-groups: [admins, users]

    - id: report-builder
      display-name: "Report Builder"
      description: "Generate custom reports"
      container-image: myorg/report-builder:latest
      container-cmd: ["R", "-e", "shiny::runApp('/srv/shiny-server/app', host='0.0.0.0', port=3838)"]
      container-network: shinyproxy-net
      port: 3838
      access-groups: [admins]

logging:
  file:
    name: /opt/shinyproxy/log/shinyproxy.log

server:
  forward-headers-strategy: native

第三步：以 Docker Compose 部 ShinyProxy

docker-compose.yml：

services:
  shinyproxy:
    image: openanalytics/shinyproxy:3.1.1
    container_name: shinyproxy
    ports:
      - "8080:8080"
    volumes:
      - ./application.yml:/opt/shinyproxy/application.yml:ro
      - /var/run/docker.sock:/var/run/docker.sock
      - shinyproxy-logs:/opt/shinyproxy/log
    networks:
      - shinyproxy-net
    restart: unless-stopped

networks:
  shinyproxy-net:
    name: shinyproxy-net
    driver: bridge

volumes:
  shinyproxy-logs:

# Create the network first (ShinyProxy spawns containers on this network)
docker network create shinyproxy-net

# Start ShinyProxy
docker compose up -d

# Check logs
docker compose logs -f shinyproxy

得： ShinyProxy 於 8080 端啟，示登錄頁，列所配之應用。

敗則： 察 docker compose logs shinyproxy。驗應用鏡像本地可得（docker images）。

第四步：配認證

簡（內建）

如第二步示之 authentication: simple 與行內用者。

LDAP

proxy:
  authentication: ldap
  ldap:
    url: ldap://ldap.example.com:389/dc=example,dc=com
    manager-dn: cn=admin,dc=example,dc=com
    manager-password: ldap_admin_password
    user-search-base: ou=users
    user-search-filter: (uid={0})
    group-search-base: ou=groups
    group-search-filter: (member={0})

OpenID Connect（Keycloak、Auth0 等）

proxy:
  authentication: openid
  openid:
    auth-url: https://auth.example.com/realms/myrealm/protocol/openid-connect/auth
    token-url: https://auth.example.com/realms/myrealm/protocol/openid-connect/token
    jwks-url: https://auth.example.com/realms/myrealm/protocol/openid-connect/certs
    client-id: shinyproxy
    client-secret: your_client_secret
    roles-claim: realm_access.roles

第五步：以 Nginx 加反向代理

於產，宜置 Nginx 於 ShinyProxy 前：

map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

server {
    listen 443 ssl;
    server_name shiny.example.com;

    ssl_certificate /etc/letsencrypt/live/shiny.example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/shiny.example.com/privkey.pem;

    location / {
        proxy_pass http://shinyproxy:8080;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_read_timeout 600s;
        proxy_buffering off;
    }
}

WebSocket 支持至要——ShinyProxy 與 Shiny 重用 WebSocket。

第六步：用量跟蹤

ShinyProxy 將用量事件記入日誌。欲結構化跟蹤，配 InfluxDB：

proxy:
  usage-stats-url: http://influxdb:8086/write?db=shinyproxy
  usage-stats-username: shinyproxy
  usage-stats-password: stats_password

於 compose 棧加 InfluxDB：

services:
  influxdb:
    image: influxdb:1.8
    environment:
      INFLUXDB_DB: shinyproxy
      INFLUXDB_ADMIN_USER: admin
      INFLUXDB_ADMIN_PASSWORD: admin_password
    volumes:
      - influxdata:/var/lib/influxdb
    networks:
      - shinyproxy-net

volumes:
  influxdata:

第七步：應用資源限

specs:
  - id: dashboard
    container-image: myorg/dashboard:latest
    container-memory-limit: 1g
    container-cpu-limit: 1.0
    max-instances: 5
    container-env:
      R_MAX_MEM_SIZE: 768m

第八步：驗部署

# Check ShinyProxy health
curl -s http://localhost:8080/actuator/health

# Test login
curl -s -c cookies.txt -d "username=admin&password=admin_password" \
  http://localhost:8080/login

# List apps via API
curl -s -b cookies.txt http://localhost:8080/api/proxyspec

得： 健端返 UP。登錄成。應用於獨容器啟。

驗

• ShinyProxy 啟且示登錄頁
• 認證為諸所配用者可行
• 各 Shiny 應用於其自容器啟
• WebSocket 連可（Shiny 反應性可行）
• 訪問組正限應用可見
• 用者離時容器清理可行
• 日誌捕用量事件

陷

• Docker socket 權限：ShinyProxy 需 Docker socket 以啟容器。以 docker 組之用者行，或掛 socket。
• 網絡不合：應用容器宜與 ShinyProxy 同 Docker 網（specs 中 container-network 宜合）。
• WebSocket 代理：ShinyProxy 前之 Nginx 或他代理須轉 WebSocket 升級頭。
• 鏡像不見：應用鏡像宜於 Docker 主預裝或預建，而後 ShinyProxy 始用。
• 容器清理：若 ShinyProxy 崩，孤兒應用容器或留。以 docker ps 察且清之。
• 內存限：Shiny 應用或耗大內存。設 container-memory-limit 以防一應用餓他者。

Related Skills

• deploy-shiny-app - 單應用部至 shinyapps.io、Posit Connect 或 Docker
• configure-reverse-proxy - 反向代理模式含 WebSocket 代理
• create-dockerfile - 通用應用鏡像 Dockerfile 建
• create-r-dockerfile - 用 rocker 鏡之 R 特定 Dockerfile