Merge pull request #137 from galaxyproject/add_global_context

Add global context

cloudman/cloudman/settings.py

@@ -78,6 +78,16 @@
     }
 }
 
+CM_GLOBAL_CONTEXT_PATH = "/opt/cloudman/global_context.yaml"
+
+if os.path.isfile(CM_GLOBAL_CONTEXT_PATH) and os.access(CM_GLOBAL_CONTEXT_PATH, os.R_OK):
+    import yaml
+    with open(CM_GLOBAL_CONTEXT_PATH) as f:
+        print(f"Loading cloudman global context from: {CM_GLOBAL_CONTEXT_PATH}")
+        CM_GLOBAL_CONTEXT = yaml.load(f)
+else:
+    CM_GLOBAL_CONTEXT = {}
+
 # Allow settings to be overridden in a cloudman/settings_local.py
 try:
     from cloudman.settings_local import *  # noqa

cloudman/helmsman/api.py

@@ -5,6 +5,7 @@
 from ansible.plugins.filter import ipaddr
 
 from django.apps import apps
+from django.conf import settings
 from django.db import IntegrityError
 from django.db import transaction
 
@@ -460,8 +461,12 @@ def screenshot_url(self):
         return self.template_obj.screenshot_url
 
     def render_values(self, context):
-        default_context = self.context or {}
-        new_context = dict(default_context)
+        global_context = settings.CM_GLOBAL_CONTEXT
+        # 1. Start with global context
+        new_context = {'global': dict(global_context)}
+        # 2. Add template default context
+        new_context.update(self.context or {})
+        # 3. Add user specified context
         new_context.update(context or {})
         jinja2_env = self._get_jinja2_env()
         tmpl = jinja2_env.from_string(

cloudman/helmsman/management/commands/helmsman_load_config.py

@@ -21,16 +21,28 @@ def handle(self, *args, **options):
     @staticmethod
     def process_settings(settings):
         if settings.get('repositories'):
+            print("Processing chart repositories...")
             Command.process_helm_repos(settings.get('repositories'))
+        else:
+            print("No chart repositories defined.")
 
         if settings.get('template_registries'):
+            print("Processing template registries...")
             Command.process_template_registries(settings.get('template_registries'))
+        else:
+            print("No template registries defined.")
 
         if settings.get('install_templates'):
+            print("Processing install templates...")
             TplCommand.process_install_templates(settings.get('install_templates'))
+        else:
+            print("No install templates defined.")
 
         if settings.get('charts'):
+            print("Processing charts in helmsman config...")
             Command.process_helm_charts(settings.get('charts'))
+        else:
+            print("No charts defined in helmsan config.")
 
     @staticmethod
     def process_helm_repos(repositories):

cloudman/helmsman/tests/test_helmsman_unit.py

@@ -1,5 +1,5 @@
 from django.contrib.auth.models import User
-from django.test import TestCase
+from django.test import TestCase, override_settings
 
 from helmsman.api import HelmsManAPI
 from helmsman.api import HMServiceContext
@@ -33,3 +33,22 @@ def test_render_values(self):
 
         host_rendered = tpl.render_values(context={'domain': 'example.com'})
         self.assertEquals(host_expected, host_rendered)
+
+    @override_settings(CM_GLOBAL_CONTEXT={'domain': 'globaldomain.com'})
+    def test_render_values_global_context(self):
+        base_tpl = ('hosts:\n'
+                    '  - ~\n'
+                    '  {%- if not (context.global.domain | ipaddr) %}\n'
+                    '  - "{{ context.global.domain }}"\n'
+                    '  {%- endif %}')
+
+        tpl = self.client.templates.create(
+                        'dummytpl', 'dummyrepo', 'dummychart',
+                        template=base_tpl)
+
+        host_expected = ('hosts:\n'
+                         '  - ~\n'
+                         '  - "globaldomain.com"')
+
+        host_rendered = tpl.render_values(context={'domain': 'example.com'})
+        self.assertEquals(host_expected, host_rendered)