Update app.Dockerfile

app.Dockerfile

-FROM rocker/shiny:4.0.1
+ FROM rocker/shiny:4.0.1
 
-# system libraries of general use
-## install debian packages
-RUN apt-get update -qq && apt-get -y --no-install-recommends install \
-    libxml2-dev \
-    libcairo2-dev \
-    libsqlite3-dev \
-    libmariadbd-dev \
-    libpq-dev \
-    libssh2-1-dev \
-    unixodbc-dev \
-    libcurl4-openssl-dev \
-    libssl-dev \
-    libgit2-dev \
-    git
+ # system libraries of general use
+ ## install debian packages
+ RUN apt-get update -qq && apt-get -y --no-install-recommends install \
+     libxml2-dev \
+     libcairo2-dev \
+     libsqlite3-dev \
+     libmariadbd-dev \
+     libpq-dev \
+     libssh2-1-dev \
+     unixodbc-dev \
+     libcurl4-openssl-dev \
+     libssl-dev \
+     libgit2-dev \
+     git
 
-## update system libraries
-RUN apt-get update && \
-    apt-get upgrade -y && \
-    apt-get clean
+ ## update system libraries
+ RUN apt-get update && \
+     apt-get upgrade -y && \
+     apt-get clean
 
-# Install cntools Library
-RUN R -e "install.packages(c('devtools'), repo='https://cran.r-project.org/')"
-RUN R -e "devtools::install_git(url='https://gitlab.osupytheas.fr/vgodard/tcntools', repo='https://cran.r-project.org/', dependencies = TRUE)"
+ # Install cntools Library
+ RUN R -e "install.packages(c('devtools'), repo='https://cran.r-project.org/')"
+ RUN R -e "devtools::install_git(url='https://gitlab.osupytheas.fr/vgodard/tcntools', repo='https://cran.r-project.org/', dependencies = TRUE)"
 
-# copy necessary files
-## app folder (folder must contain App.R file)
-COPY ./inst/shinyapp_sato  /app
+ # copy necessary files
+ ## app folder (folder must contain App.R file)
+ COPY ./inst/shinyapp_sato  /app
 
-#expose port
-EXPOSE 3838
-# run app on container start
-CMD ["R", "-e", "\"shiny::runApp('/app', host = '0.0.0.0', port = 3838)\""]
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+ #expose port
+ EXPOSE 3838
+ # run app on container start
+ CMD R -e "shiny::runApp('/app', host = '0.0.0.0', port = 3838)"
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