Merge branch 'feature-build-environment-yml' into 'develop'

Add build_environment.yml for gitlab ci

See merge request metobs/MetObsSite!11

.gitlab-ci.yml

@@ -8,6 +8,8 @@ basic_build_check:
     - build
   script:
     - source /var/lib/gitlab-runner/.bashrc
+    # create or update the existing environment to the newest pelican version
+    - conda env update -f build_environment.yml
     - conda activate rain_site
     - make clean
     - make publish

README.md

@@ -64,7 +64,9 @@ initializes a bashrc for the `gitlab-runner` user.
 sudo -u gitlab-runner /home/davidh/miniconda3/bin/conda init bash
 ```
 
-This will 
+Or where ever conda is installed for this system. This will create a bashrc
+file for the gitlab-runner user to make the `conda` command available. This
+is used in the `.gitlab-ci.yml` scripts for creating a build environment.
 
 ### GitLab Runner Upload
 

build_environment.yml

+name: rain_site
+channels:
+  - conda-forge
+  - defaults
+dependencies:
+  - pelican
+  - nodejs
+  - python=3.7