在ShinyProxy中获取CSS和Javscript文件时,如何解决“ 404(未找到)”错误

时间:2019-04-08 21:34:57

标签: r docker shiny shinyproxy

我正在尝试使用ShinyProxy启动闪亮的应用程序-我之前已经做过很多次了。但是,此应用未正确使用运行它所需的任何CSS或JS文件。

当我使用docker run -p 3838:3838 my_app手动运行该应用程序时,一切正常。但是,将ShinyProxy指向my_app图像时,生成的应用程序无法加载任何CSS或JS文件。

Dockerfile

FROM openanalytics/r-base

MAINTAINER Daniel Beachnau "DannyBeachnau@gmail.com"

# Dependencies outside of R
RUN apt-get update && apt-get install -y \
    sudo \
    gdebi-core \
    pandoc \
    pandoc-citeproc \
    libcurl4-gnutls-dev \
    libcairo2-dev \
    libxt-dev \
    xtail \
    wget \
    libpq-dev \
    libmariadb-client-lgpl-dev \
    # Might be needed for the archivist R-Library
    dbus \
    systemd \
    # needed for odbc
    unixodbc-dev

RUN apt-get install apt-transport-https curl -y
RUN curl http://packages.microsoft.com/keys/microsoft.asc | apt-key add -
RUN curl https://packages.microsoft.com/config/ubuntu/16.04/prod.list > /etc/apt/sources.list.d/mssql-release.list
RUN apt-get update
RUN ACCEPT_EULA=Y apt-get install msodbcsql17 -y

# Download R-Packages
# tidyverse
RUN R -e "install.packages('tidyr')"
RUN R -e "install.packages('dplyr')"
RUN R -e "install.packages('readr')"
# Shiny Packages
RUN R -e "install.packages('shiny')"
RUN R -e "install.packages('shinycssloaders')"
RUN R -e "install.packages('shinydashboard')"
RUN R -e "install.packages('shinyWidgets')"
RUN R -e "install.packages('DT')"
RUN R -e "install.packages('shinyjs')"
RUN R -e "install.packages('flexdashboard')"
# Database Packages
RUN R -e "install.packages('odbc')"
RUN R -e "install.packages('RMySQL')"
# Other
RUN R -e "install.packages('devtools')"
RUN R -e "install.packages('lubridate')"
RUN R -e "install.packages('reshape2')"
RUN R -e "install.packages('grid')"
RUN R -e "install.packages('lemon')"
RUN R -e "install.packages('scales')"
RUN R -e "install.packages('ggthemes')"
RUN R -e "install.packages('ggplot2')"

RUN R -e "devtools::install_bitbucket(repo = 'my_repo/my_package',  auth_user = 'my_username', password = 'my_password')"

# copy the app to the image
COPY . /root

# run the script to update the app data
WORKDIR /root
RUN Rscript app_data_update.R

WORKDIR /root/app
COPY Rprofile.site /usr/lib/R/etc/
EXPOSE 3838
CMD ["R", "-e", "shiny::runApp('/root/app', host='0.0.0.0', port=3838)"]

application.yml

shiny:
  proxy:
    title: ShinyProxy Server
    logo-url: /images/logo-image.png
    landing-page: /
    heartbeat-rate: 10000
    heartbeat-timeout: 60000
    container-wait-time: 60000
    port: 8080
    authentication: ldap

    # Docker configuration
    docker:
      cert-path: /home/none
      url: http://localhost:2375
      port-range-start: 20000
    support:
      container-log-path: ./container-logs
      mail-to-address: DannyBeachnau@gmail.co,

  - name: my_apps_name
    display-name: Shiny App
    docker-image: dbeachnau/my_app
    groups: [Shiny Users Management]
    logo-url: /images/logo-image.png
    container-volumes: ["/path/to/app:/root/app"]


logging:
  file:
    shinyproxy.log

这是应用在闪亮的代理中的外观。

problem

这是我的应用在手动运行时看上去的样子。

desired

chrome的检查工具中的控制台充满了诸如

之类的错误

GET https://myshinyserver.com/container_name/font-awesome-5.3.1/css/all.min.css net::ERR_ABORTED 404 (Not Found)

我确实在ShinyProxy上运行了其他应用程序,这些应用程序可以正常显示,但是我无法解决这些应用程序配置与该应用程序配置之间的区别。让我知道是否需要其他详细信息来诊断问题。感谢所有反馈-谢谢。

4 个答案:

答案 0 :(得分:0)

您将必须在Dockerfile的顶部安装所需的字体。您可以将其添加到列表“ R之外的依赖项”:

sudo apt-get install fonts-font-awesome

答案 1 :(得分:0)

我已经解决了我的问题,尽管这仍然不能算作足够的答案或解释,因为我无法解释这种解决方案为何有所作为。我决定使用现在可以使用的其他基础映像重写Dockerfile。我的代码中没有其他更改-仅是Dockerfile。工作的docker文件如下:

FROM rocker/shiny-verse
# based on debian 9

MAINTAINER Daniel Beachnau "DannyBeachnau@gmail.com"

# Dependencies outside of R
RUN apt-get update && apt-get install -y \
    gnupg2 \
    apt-utils \
    sudo \
    gdebi-core \
    libxt-dev \
    xtail \
    wget

# Install ODBC driver from microsoft
RUN apt-get install apt-transport-https curl -y
RUN curl http://packages.microsoft.com/keys/microsoft.asc | apt-key add -
RUN curl https://packages.microsoft.com/config/debian/9/prod.list > /etc/apt/sources.list.d/mssql-release.list
RUN apt-get update
RUN ACCEPT_EULA=Y apt-get install msodbcsql17 -y

# Download R-Packages
# Shiny Packages
RUN R -e "install.packages('shinycssloaders')"
RUN R -e "install.packages('shinydashboard')"
RUN R -e "install.packages('shinyWidgets')"
RUN R -e "install.packages('DT')"
RUN R -e "install.packages('shinyjs')"
RUN R -e "install.packages('flexdashboard')"
# Database Packages
RUN R -e "install.packages('odbc')"
RUN R -e "install.packages('RMySQL')"
# Other
RUN R -e "install.packages('lubridate')"
RUN R -e "install.packages('reshape2')"
RUN R -e "install.packages('scales')"
RUN R -e "install.packages('ggthemes')"
RUN R -e "install.packages('ggplot2')"

RUN R -e "devtools::install_bitbucket(repo = 'my_repo',  auth_user = 'my_username', password = 'my_password')"

# copy the app to the image
COPY . /root

# run the script to update the app data
WORKDIR /root
RUN Rscript app_data_update.R

WORKDIR /root/app
COPY Rprofile.site /usr/lib/R/etc/
EXPOSE 3838
CMD ["R", "-e", "shiny::runApp('/root/app', host='0.0.0.0', port=3838)"]

如果有人对为什么会观察到这种行为有深刻的了解,我很乐意听到它,因为我不敢多说。

答案 2 :(得分:0)

您可能会在Shiny v1.3.0(而不是早期版本)中看到这种情况。如果是这样,可能是由于您的NGINX代理指令中的配置错误。我已经写了详细信息here,但我还将在此处发布重要的详细信息。

proxy_set_header Connection "upgrade";

此指令使NGINX在仅应用于WebSocket时向每个HTTP请求添加一个Connection:升级标头。

NGINX Inc.本身推荐此行,但是,这些建议仅用于代理WebSockets的流量,而Shiny流量则是普通HTTP请求和WebSockets的组合。较旧版本的Shiny / httpuv不介意这种情况,但是新版本更严格。

正确的配置如下所示:

http {

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

  server {
    listen 80;


    location / {
      proxy_pass http://localhost:3838;
      proxy_redirect / $scheme://$http_host/;
      proxy_http_version 1.1;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection $connection_upgrade;
      proxy_read_timeout 20d;
      proxy_buffering off;
    }
  }
}

有关其他示例,请参见RStudio Community post中链接的文章。

答案 3 :(得分:-1)

该解决方案为何有所作为

Shiny版本似乎是一个问题,更改基本映像很可能已解决了该问题。

请参见Shiny apps not rendering after updated to v1.3.0