feat(helm): replace FLASK_ENV with FLASK_DEBUG for debug mode

The FLASK_ENV environment variable was deprecated in Flask 2.3
and removed in Flask 3.x. With the upgrade of REANA components
to Flask 3.x, replace all FLASK_ENV=development settings in the
Helm templates with the equivalent FLASK_DEBUG=1 across the
reana-server, reana-workflow-controller, and cronjob deployments.

Closes reanahub/reana-server#770.

Author: tiborsimko

helm/reana/templates/cronjobs.yaml

@@ -42,8 +42,8 @@ spec:
               value: {{ .Values.reana_hostname | quote }}
             {{- end }}
             {{- if .Values.debug.enabled }}
-            - name: FLASK_ENV
-              value:  "development"
+            - name: FLASK_DEBUG
+              value:  "1"
             {{- end }}
             - name: REANA_DB_USERNAME
               valueFrom:
@@ -169,8 +169,8 @@ spec:
               value: {{ .Values.reana_hostname | quote }}
             {{- end }}
             {{- if .Values.debug.enabled }}
-            - name: FLASK_ENV
-              value:  "development"
+            - name: FLASK_DEBUG
+              value:  "1"
             {{- end }}
             - name: REANA_DB_USERNAME
               valueFrom:
@@ -253,8 +253,8 @@ spec:
               value: {{ .Values.reana_hostname | quote }}
             {{- end }}
             {{- if .Values.debug.enabled }}
-            - name: FLASK_ENV
-              value:  "development"
+            - name: FLASK_DEBUG
+              value:  "1"
             {{- end }}
             - name: REANA_DB_USERNAME
               valueFrom:
@@ -348,8 +348,8 @@ spec:
               value: {{ .Values.reana_hostname | quote }}
             {{- end }}
             {{- if .Values.debug.enabled }}
-            - name: FLASK_ENV
-              value:  "development"
+            - name: FLASK_DEBUG
+              value:  "1"
             {{- end }}
             - name: REANA_DB_USERNAME
               valueFrom:

helm/reana/templates/reana-server.yaml

@@ -246,8 +246,8 @@ spec:
             value: "{{ include "reana.prefix" . }}-wdb"
           - name: WDB_NO_BROWSER_AUTO_OPEN
             value: "True"
-          - name: FLASK_ENV
-            value:  "development"
+          - name: FLASK_DEBUG
+            value:  "1"
           # Hack to not verify SSL connections https://stackoverflow.com/questions/48391750/disable-python-requests-ssl-validation-for-an-imported-module
           - name: CURL_CA_BUNDLE
             value: ""
@@ -331,8 +331,8 @@ spec:
           value: "{{ include "reana.prefix" . }}-wdb"
         - name: WDB_NO_BROWSER_AUTO_OPEN
           value: "True"
-        - name: FLASK_ENV
-          value:  "development"
+        - name: FLASK_DEBUG
+          value:  "1"
         # Hack to not verify SSL connections https://stackoverflow.com/questions/48391750/disable-python-requests-ssl-validation-for-an-imported-module
         - name: CURL_CA_BUNDLE
           value: ""

helm/reana/templates/reana-workflow-controller.yaml

@@ -263,8 +263,8 @@ spec:
             value: "{{ include "reana.prefix" . }}-wdb"
           - name: WDB_NO_BROWSER_AUTO_OPEN
             value: "True"
-          - name: FLASK_ENV
-            value:  "development"
+          - name: FLASK_DEBUG
+            value:  "1"
           # Hack to not verify SSL connections https://stackoverflow.com/questions/48391750/disable-python-requests-ssl-validation-for-an-imported-module
           - name: CURL_CA_BUNDLE
             value: ""
@@ -344,8 +344,8 @@ spec:
           value: "{{ include "reana.prefix" . }}-wdb"
         - name: WDB_NO_BROWSER_AUTO_OPEN
           value: "True"
-        - name: FLASK_ENV
-          value:  "development"
+        - name: FLASK_DEBUG
+          value:  "1"
         # Hack to not verify SSL connections https://stackoverflow.com/questions/48391750/disable-python-requests-ssl-validation-for-an-imported-module
         - name: CURL_CA_BUNDLE
           value: ""