docker化时如何让golem应用程序生成日志？

Posted 2023-03-24

【中文标题】docker化时如何让golem应用程序生成日志？

【英文标题】：How can I get a golem app to generate logs when dockerized?

【发布时间】：2021-01-21 21:04:46

【问题描述】：

我们有一个 dockerized golem 应用程序运行良好，除了在部署到 docker 容器中时不创建任何输出（日志语句）。事实上，我们甚至没有看到任何默认的闪亮服务器日志。

这是我们的“AirSensorDataViewer”魔像应用的 app.R：

pkgload::load_all(export_all = FALSE, helpers = FALSE, attach_testthat = FALSE)
options( 
  golem.app.prod = TRUE, 
  shiny.port = 3838,
  shiny.host = '0.0.0.0'
)
AirSensorDataViewer::run_app()

这是我们的 Dockerfile（构建在包含所有必要软件包的基础镜像之上）：

FROM mazamascience/airsensor-dataviewer-base:1.0.1

# Create the build zone, copy the local directory over to the docker image, build and install R package.
RUN mkdir /build_zone
ADD . /build_zone
WORKDIR /build_zone
RUN R -e 'remotes::install_local(upgrade="never")'

# Remove sample apps
RUN rm -rf /srv/shiny-server/

# copy app to image
COPY . /srv/shiny-server/asdv

# add .conf file to image/container to preserve log file
COPY ./shiny-server.conf  /etc/shiny-server/shiny-server.conf

# When run image and create a container, this container will listen on port 3838
EXPOSE 3838

# Avoiding running as root --> run container as user 'shiny' instead
# allow permission
RUN sudo chown -R shiny:shiny /srv/shiny-server
RUN chmod -R 755 /srv/shiny-server/asdv

# execute in the following as user --> imortant to give permission before that step
USER shiny

##run app
CMD ["/usr/bin/shiny-server.sh"]

最后，我们的 shiny-server.conf 文件：

# Instruct Shiny Server to run applications as the user "shiny"
run_as shiny;

# Define a server that listens on port 3838
server 
  listen 3838;

  # Define a location at the base URL
  location /asdv/test/ 

    # Host the directory of Shiny Apps stored in this directory
    site_dir /srv/shiny-server/asdv;

    # Log all Shiny output to files in this directory
    log_dir /var/log/shiny-server;

    # When a user visits the base URL rather than a particular application,
    # an index of the applications available in this directory will be shown.
    directory_index on;
  

有没有人成功让一个 dockerized golem 应用程序来创建/写入 docker 容器内的文件？

【参考方案1】：

我希望发布的问题可能对那些想要这样做的人有所帮助，因为事实证明一切正常。

在过去的几个小时里，当我想检查容器日志文件时，我错误地输入了docker run ...。这将创建一个新容器。

相反，当我：

docker exec -ti airsensor-dataviewer-desktop /bin/bash
ls /var/log/shiny-server/