set env variable for CONDA_PKGS_DIRS in container image

Author: johanneskoester

.gitpod.yml

@@ -2,11 +2,8 @@ image: snakemake/snakemake-tutorial:stable
 
 tasks:
   - name: main terminal
-    env:
-      CONDA_PKGS_DIRS: /tmp/conda
     command: |
       rm Dockerfile
-      mkdir -p /tmp/conda
       echo -e "# Snakemake-Tutorial\n\nYour gitpod workspace for the snakemake-tutorial has been initialized. Now you can start with the [basic tutorial](https://snakemake.readthedocs.io/en/stable/tutorial/basics.html)." > README.md
       echo "PS1='\w\$ '" >> ~/.bashrc
       source ~/.bashrc

Dockerfile

@@ -1,3 +1,5 @@
 FROM snakemake/snakemake:stable
 ADD environment.yaml .
 RUN grep -v snakemake-minimal environment.yaml > /tmp/environment.yaml; mamba env update -n snakemake -f /tmp/environment.yaml
+RUN mkdir -p /tmp/conda
+ENV CONDA_PKGS_DIRS /tmp/conda