Add local environment to run Python scripts

Environment named named csstudio as it's shared with CS-Studio (no need
to have separate environments).
And Phoebus is still CS-Studio (just a new version).

JIRA INFRA-1428 #action In Progress

defaults/main.yml

@@ -6,3 +6,11 @@ phoebus_archive: "http://artifactory.esss.lu.se/artifactory/libs-snapshot-local/
 phoebus_settings_path: "{{ phoebus_home }}/phoebus.ini"
 phoebus_settings: {}
 phoebus_options: "-server 4918"
+# Set to [] to not create a python environment
+phoebus_python_packages:
+  - python=3.7
+  - py4j
+  - connect2j
+  - numpy=1.17
+  - scipy=1.3
+  - pandas=0.25

meta/main.yml

@@ -10,4 +10,5 @@ galaxy_info:
       versions:
         - 7
 dependencies:
+  - role: ics-ans-role-conda
   - role: ics-ans-role-java

molecule/default/requirements.yml

 ---
+- src: git+https://gitlab.esss.lu.se/ics-ansible-galaxy/ics-ans-role-conda.git
 - src: git+https://gitlab.esss.lu.se/ics-ansible-galaxy/ics-ans-role-java.git

tasks/main.yml

@@ -68,3 +68,15 @@
     path: "{{ item.path }}"
     state: absent
   loop: "{{ (phoebus_installations.files | sort(attribute='ctime', reverse=True))[phoebus_installations_keep:] }}"
+
+- name: install Python environment
+  conda:
+    name: "{{ phoebus_python_packages }}"
+    state: present
+    channels:
+      - ics-conda
+      - conda-forge
+      - anaconda-main
+    environment: csstudio
+  when: phoebus_python_packages != []
+  tags: phoebus-python-env

templates/phoebus.j2

@@ -3,4 +3,10 @@
 PHOEBUS_OPTS="{{ phoebus_options }}"
 PHOEBUS_JAR={{ phoebus_home }}/product-{{ phoebus_version }}.jar
 
+if [[ -d /opt/conda/envs/csstudio/bin ]]
+then
+  source /opt/conda/etc/profile.d/conda.sh
+  conda activate csstudio
+fi
+
 {{ java_openjdk_bin }} $JAVA_ARGS $JAVA_OPTS -jar $PHOEBUS_JAR $PHOEBUS_OPTS -resource %f -settings "{{ phoebus_settings_path }}"