fix pip version, make R lib writable, fix shiny-server path

wilson-basic/Dockerfile

@@ -28,10 +28,10 @@ RUN apt-get update && apt-get install -y \
     libcurl4-openssl-dev \
     git \
     procps \
-    python-pip && \
+    python3-pip && \
     apt-get clean && \
     # Install jinja2 templating engine
-    pip install j2cli && \
+    pip3 install j2cli && \
     # Install R infrastructure
     R -e "install.packages(c('BiocManager', 'webshot'), repos = c(CRAN = 'https://cloud.r-project.org/'))" && \
     R -e "webshot::install_phantomjs()" && \
@@ -43,9 +43,10 @@ RUN apt-get update && apt-get install -y \
     # Change ownerships
     chmod -R ugo+wrX /var/log/shiny-server/ && \
     chown -R shiny:shiny /srv/shiny-server/ && \
+    chmod o+w /usr/local/lib/R/site-library && \
     # Clean up existing sample apps
     rm -rf /srv/shiny-server/[0-9][0-9]_* /srv/shiny-server/index.html /srv/shiny-server/sample-apps
 
 # Start container
 USER shiny
-CMD ["/entrypoint.sh", "/usr/bin/shiny-server.sh"]
+CMD ["/entrypoint.sh", "/usr/bin/shiny-server"]