Use conda-env for rstudio-server

rsession.sh

#!/bin/bash
USER=`whoami`
source /etc/profile

# Source global definitions
if [ -f /etc/bashrc ]; then
  . /etc/bashrc
fi

source /storage/apps/dotfiles/bashrc.sh

# load conda env from file
CONDA_ENV=`cat /tmp/rstudio-server/${USER}_current_env`
echo "## CONDA ENV is >>>"
echo ${CONDA_ENV}

conda activate ${CONDA_ENV}

/usr/lib/rstudio-server/bin/rsession $@

start_rstudio_server.sh

CWD="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
USER=`whoami`
# set a user-specific secure cookie key
COOKIE_KEY_PATH=/tmp/rstudio-server/${USER}_secure-cookie-key
rm -f $COOKIE_KEY_PATH
uuid > $COOKIE_KEY_PATH
chmod 600 $COOKIE_KEY_PATH

# store the currently activated conda environment in a file to be ready by rsession.sh
CONDA_ENV_PATH=/tmp/rstudio-server/${USER}_current_env
rm -f $CONDA_ENV_PATH
echo "## Current env is >>"
echo $CONDA_PREFIX
echo $CONDA_PREFIX > $CONDA_ENV_PATH

/usr/lib/rstudio-server/bin/rserver --server-daemonize=0 \
  --www-port $1 \
  --secure-cookie-key-file $COOKIE_KEY_PATH \
  --rsession-which-r=$(which R) \
  --rsession-ld-library-path=$CONDA_PREFIX/lib \
  --rsession-path="$CWD/rsession.sh"