rest: add max inactivity period for interactive sessions to info endp…

…oint

Adds the `maximum_interactive_session_inactivity_period` value to the ones returned by `/api/info`.

Addresses reanahub/reana-client#657

CHANGES.rst

@@ -4,6 +4,7 @@ Changes
 Version 0.9.1 (UNRELEASED)
 --------------------------
 
+- Changes OpenAPI specification with respect to return the maximum inactivity time before automatic closure of interactive sessions in ``info`` endpoint.
 - Adds the content of the ``REANA_GITLAB_HOST`` environment variable to the list of GitLab instances from which it is possible to launch a workflow.
 - Adds new ``prune_workspace`` endpoint to allow users to delete all the files of a workflow, specifying whether to also delete the inputs and/or the outputs.
 - Adds ``interactive-session-cleanup`` command that can be used by REANA administrators to close interactive sessions that are inactive for more than the specified number of days.

docs/openapi.json

@@ -455,6 +455,17 @@
                   },
                   "type": "object"
                 },
+                "maximum_interactive_session_inactivity_period": {
+                  "properties": {
+                    "title": {
+                      "type": "string"
+                    },
+                    "value": {
+                      "type": "string"
+                    }
+                  },
+                  "type": "object"
+                },
                 "maximum_kubernetes_jobs_timeout": {
                   "properties": {
                     "title": {

reana_server/rest/info.py

@@ -14,7 +14,7 @@
 from flask import Blueprint, jsonify
 from marshmallow import Schema, fields
 
-from reana_commons.config import DEFAULT_WORKSPACE_PATH, WORKSPACE_PATHS
+from reana_commons.config import DEFAULT_WORKSPACE_PATH, WORKSPACE_PATHS, REANAConfig
 
 from reana_server.config import (
     SUPPORTED_COMPUTE_BACKENDS,
@@ -108,6 +108,7 @@ def info(user, **kwargs):  # noqa
               }
     """
     try:
+        ui_config = REANAConfig.load("ui")
         cluster_information = dict(
             workspaces_available=dict(
                 title="List of available workspaces",
@@ -140,6 +141,10 @@ def info(user, **kwargs):  # noqa
                 title="Maximum timeout for Kubernetes jobs",
                 value=REANA_KUBERNETES_JOBS_MAX_USER_TIMEOUT_LIMIT,
             ),
+            maximum_interactive_session_inactivity_period=dict(
+                title="Maximum inactivity period in days before automatic closure of interactive sessions",
+                value=ui_config.get("maximum_interactive_session_inactivity_period"),
+            ),
         )
         return InfoSchema().dump(cluster_information)
 
@@ -180,3 +185,4 @@ class InfoSchema(Schema):
     maximum_workspace_retention_period = fields.Nested(StringNullableInfoValue)
     default_kubernetes_jobs_timeout = fields.Nested(StringInfoValue)
     maximum_kubernetes_jobs_timeout = fields.Nested(StringInfoValue)
+    maximum_interactive_session_inactivity_period = fields.Nested(StringInfoValue)