Fail safed more parts of the code

cli/meta/applications/all.py

@@ -1,46 +1,37 @@
 #!/usr/bin/env python3
+# cli/meta/applications/all.py
+
 import argparse
-import glob
-import os
 import sys
 
+# Import the Ansible filter implementation
 try:
-    import yaml
+    from filter_plugins.get_all_application_ids import get_all_application_ids
 except ImportError:
-    sys.stderr.write("PyYAML is required. Install with `pip install pyyaml`.\n")
+    sys.stderr.write("Filter plugin `get_all_application_ids` not found. Ensure `filter_plugins/get_all_application_ids.py` is in your PYTHONPATH.\n")
     sys.exit(1)
 
 
 def find_application_ids():
     """
-    Searches all files matching roles/*/vars/main.yml for the key 'application_id'
-    and returns a list of all found IDs.
+    Legacy function retained for reference.
+    Delegates to the `get_all_application_ids` filter plugin.
     """
-    pattern = os.path.join('roles', '*', 'vars', 'main.yml')
-    app_ids = []
-
-    for filepath in glob.glob(pattern):
-        try:
-            with open(filepath, 'r', encoding='utf-8') as f:
-                data = yaml.safe_load(f)
-        except Exception as e:
-            sys.stderr.write(f"Error reading {filepath}: {e}\n")
-            continue
-
-        if isinstance(data, dict) and 'application_id' in data:
-            app_ids.append(data['application_id'])
-
-    return sorted(set(app_ids))
+    return get_all_application_ids()
 
 
 def main():
     parser = argparse.ArgumentParser(
         description='Output a list of all application_id values defined in roles/*/vars/main.yml'
     )
-    # No arguments other than --help
     parser.parse_args()
 
+    try:
         ids = find_application_ids()
+    except Exception as e:
+        sys.stderr.write(f"Error retrieving application IDs: {e}\n")
+        sys.exit(1)
+
     for app_id in ids:
         print(app_id)
 

cli/meta/applications/role_name.py

@@ -13,7 +13,7 @@ import argparse
 import yaml
 
 
-def get_role_folder(application_id, roles_path):
+def get_role(application_id, roles_path):
     """
     Find the role directory under `roles_path` whose vars/main.yml contains the specified application_id.
 
@@ -62,7 +62,7 @@ def main():
     args = parser.parse_args()
 
     try:
-        folder = get_role_folder(args.application_id, args.roles_path)
+        folder = get_role(args.application_id, args.roles_path)
         print(folder)
         sys.exit(0)
     except RuntimeError as err:

filter_plugins/get_all_application_ids.py

@@ -0,0 +1,40 @@
+#!/usr/bin/env python3
+# filter_plugins/get_all_application_ids.py
+
+import glob
+import os
+import yaml
+
+
+def get_all_application_ids(roles_dir='roles'):
+    """
+    Ansible filter to retrieve all unique application_id values
+    defined in roles/*/vars/main.yml files.
+
+    :param roles_dir: Base directory for Ansible roles (default: 'roles')
+    :return: Sorted list of unique application_id strings
+    """
+    pattern = os.path.join(roles_dir, '*', 'vars', 'main.yml')
+    app_ids = []
+
+    for filepath in glob.glob(pattern):
+        try:
+            with open(filepath, 'r', encoding='utf-8') as f:
+                data = yaml.safe_load(f)
+        except Exception:
+            continue
+
+        if isinstance(data, dict) and 'application_id' in data:
+            app_ids.append(data['application_id'])
+
+    return sorted(set(app_ids))
+
+
+class FilterModule(object):
+    """
+    Ansible filter plugin for retrieving application IDs.
+    """
+    def filters(self):
+        return {
+            'get_all_application_ids': get_all_application_ids
+        }

filter_plugins/get_application_id.py

@@ -0,0 +1,51 @@
+# filter_plugins/get_application_id.py
+
+import os
+import re
+import yaml
+from ansible.errors import AnsibleFilterError
+
+
+def get_application_id(role_name):
+    """
+    Jinja2/Ansible filter: given a role name, load its vars/main.yml and return the application_id value.
+    """
+    # Construct path: assumes current working directory is project root
+    vars_file = os.path.join(os.getcwd(), 'roles', role_name, 'vars', 'main.yml')
+
+    if not os.path.isfile(vars_file):
+        raise AnsibleFilterError(f"Vars file not found for role '{role_name}': {vars_file}")
+
+    try:
+        # Read entire file content to avoid lazy stream issues
+        with open(vars_file, 'r', encoding='utf-8') as f:
+            content = f.read()
+        data = yaml.safe_load(content)
+    except Exception as e:
+        raise AnsibleFilterError(f"Error reading YAML from {vars_file}: {e}")
+
+    # Ensure parsed data is a mapping
+    if not isinstance(data, dict):
+        raise AnsibleFilterError(
+            f"Error reading YAML from {vars_file}: expected mapping, got {type(data).__name__}"
+        )
+
+    # Detect malformed YAML: no valid identifier-like keys
+    valid_key_pattern = re.compile(r'^[A-Za-z_][A-Za-z0-9_]*$')
+    if data and not any(valid_key_pattern.match(k) for k in data.keys()):
+        raise AnsibleFilterError(f"Error reading YAML from {vars_file}: invalid top-level keys")
+
+    if 'application_id' not in data:
+        raise AnsibleFilterError(f"Key 'application_id' not found in {vars_file}")
+
+    return data['application_id']
+
+
+class FilterModule(object):
+    """
+    Ansible filter plugin entry point.
+    """
+    def filters(self):
+        return {
+            'get_application_id': get_application_id,
+        }

filter_plugins/get_role.py

@@ -1,5 +1,5 @@
 '''
-Ansible filter plugin: get_role_folder
+Ansible filter plugin: get_role
 
 This filter inspects each role under the given roles directory, loads its vars/main.yml,
 and returns the role folder name whose application_id matches the provided value.
@@ -10,7 +10,7 @@ import os
 import yaml
 
 
-def get_role_folder(application_id, roles_path='roles'):
+def get_role(application_id, roles_path='roles'):
     """
     Find the role directory under `roles_path` whose vars/main.yml contains the given application_id.
 
@@ -40,9 +40,9 @@ def get_role_folder(application_id, roles_path='roles'):
 
 class FilterModule(object):
     """
-    Register the get_role_folder filter
+    Register the get_role filter
     """
     def filters(self):
         return {
-            'get_role_folder': get_role_folder,
+            'get_role': get_role,
         }

group_vars/all/09_ports.yml

@@ -38,15 +38,15 @@ ports:
       matomo: 8018
       listmonk: 8019
       discourse: 8020
-      synapse: 8021
-      element: 8022
+      matrix_synapse: 8021
+      matrix_element: 8022
       openproject: 8023
       gitlab: 8024
       akaunting: 8025
       moodle: 8026
       taiga: 8027
       friendica: 8028
-      portfolio: 8029
+      web-app-port-ui: 8029
       bluesky_api: 8030
       bluesky_web: 8031
       keycloak: 8032

roles/srv-web-7-7-inj-iframe/templates/iframe-handler.js.j2

@@ -1,6 +1,6 @@
 (function() {
   var primary = "{{ primary_domain }}";
-  var allowedOrigin = "https://{{ domains | get_domain('portfolio') }}";
+  var allowedOrigin = "https://{{ domains | get_domain('web-app-port-ui') }}";
 
   function notifyParent() {
     try {

roles/web-app-matrix/tasks/main.yml

@@ -17,7 +17,7 @@
     name: srv-web-7-6-composer
   vars:
     domain:     "{{domains.matrix.synapse}}"
-    http_port:  "{{ports.localhost.http.synapse}}"
+    http_port:  "{{ports.localhost.http.matrix_synapse}}"
 
 - name: create {{well_known_directory}}
   file:
@@ -36,7 +36,7 @@
     dest: "{{nginx.directories.http.servers}}{{domains.matrix.synapse}}.conf"
   vars:
     domain:     "{{domains.matrix.synapse}}" # Didn't work in the past. May it works now. This does not seem to work @todo Check how to solve without declaring set_fact, seems a bug at templates
-    http_port:  "{{ports.localhost.http.synapse}}"
+    http_port:  "{{ports.localhost.http.matrix_synapse}}"
   notify: restart nginx
         
 - name: "include role srv-proxy-6-6-domain for {{application_id}}"
@@ -44,7 +44,7 @@
     name: srv-proxy-6-6-domain
   vars:        
     domain:     "{{domains.matrix.element}}"
-    http_port:  "{{ports.localhost.http.element}}"
+    http_port:  "{{ports.localhost.http.matrix_element}}"
 
 - name: include create-and-seed-database.yml for multiple bridges
   include_tasks: create-and-seed-database.yml

roles/web-app-matrix/templates/docker-compose.yml.j2

@@ -17,7 +17,7 @@
       - SYNAPSE_SERVER_NAME={{domains.matrix.synapse}}
       - SYNAPSE_REPORT_STATS=no
     ports:
-      - "127.0.0.1:{{ports.localhost.http.synapse}}:{{ container_port }}"
+      - "127.0.0.1:{{ports.localhost.http.matrix_synapse}}:{{ container_port }}"
 {% include 'roles/docker-container/templates/healthcheck/curl.yml.j2' %}
 {% if bridges | length > 0 %}
 {% for item in bridges %}
@@ -36,7 +36,7 @@
     volumes:
       - ./element-config.json:/app/config.json
     ports:
-      - "127.0.0.1:{{ports.localhost.http.element}}:{{ container_port }}"
+      - "127.0.0.1:{{ports.localhost.http.matrix_element}}:{{ container_port }}"
 {% include 'roles/docker-container/templates/healthcheck/wget.yml.j2' %}
 {% include 'roles/docker-container/templates/networks.yml.j2' %}
 

roles/web-app-matrix/templates/nginx.conf.j2

@@ -2,7 +2,7 @@ server {
     {# Somehow .j2 doesn't interpretate the passed variable right. For this reasons this redeclaration is necessary #}
     {# Could be that this is related to the set_fact use #}
     {% set domain = domains.matrix.synapse %}
-    {% set http_port = ports.localhost.http.synapse %}
+    {% set http_port = ports.localhost.http.matrix_synapse %}
 
     server_name {{domains.matrix.synapse}};
     {% include 'roles/srv-web-7-7-letsencrypt/templates/ssl_header.j2' %}

roles/web-app-port-ui/README.md

@@ -1,4 +1,4 @@
-# PortWebUI
+# PortUI
 
 ## Description
 

roles/web-app-port-ui/lookup_plugins/docker_cards.py

@@ -16,13 +16,13 @@ class LookupModule(LookupBase):
         This lookup iterates over all roles whose folder name starts with 'web-app-'
         and generates a list of dictionaries (cards). For each role, it:
 
-          - Extracts the application_id (everything after "web-app-")
+          - Reads application_id from the role's vars/main.yml
           - Reads the title from the role's README.md (the first H1 line)
           - Retrieves the description from galaxy_info.description in meta/main.yml
           - Retrieves the icon class from galaxy_info.logo.class
           - Retrieves the tags from galaxy_info.galaxy_tags
-          - Builds the URL using the 'domains' variable (e.g. domains | get_domain(application_id))
-          - Sets the iframe flag from applications[application_id].features.iframe
+          - Builds the URL using the 'domains' variable
+          - Sets the iframe flag from applications[application_id].features.portfolio_iframe
 
         Only cards whose application_id is included in the variable group_names are returned.
         """
@@ -40,11 +40,22 @@ class LookupModule(LookupBase):
             role_basename = os.path.basename(role_dir)
 
             # Skip roles not starting with "web-app-"
-            if not role_basename.startswith("web-app-"):
+            if not role_basename.startswith("web-app-"):  # Ensure prefix
                 continue
 
-            # Extract application_id from role name
-            application_id = role_basename[len("web-app-"):]
+            # Load application_id from role's vars/main.yml
+            vars_path = os.path.join(role_dir, "vars", "main.yml")
+            try:
+                if not os.path.isfile(vars_path):
+                    raise AnsibleError(f"Vars file not found for role '{role_basename}': {vars_path}")
+                with open(vars_path, "r", encoding="utf-8") as vf:
+                    vars_content = vf.read()
+                vars_data = yaml.safe_load(vars_content) or {}
+                application_id = vars_data.get("application_id")
+                if not application_id:
+                    raise AnsibleError(f"Key 'application_id' not found in {vars_path}")
+            except Exception as e:
+                raise AnsibleError(f"Error getting application_id for role '{role_basename}': {e}")
 
             # Skip roles not listed in group_names
             if application_id not in group_names:
@@ -65,15 +76,14 @@ class LookupModule(LookupBase):
                 title_match = re.search(r'^#\s+(.*)$', readme_content, re.MULTILINE)
                 title = title_match.group(1).strip() if title_match else application_id
             except Exception as e:
-                raise AnsibleError("Error reading '{}': {}".format(readme_path, str(e)))
+                raise AnsibleError(f"Error reading '{readme_path}': {e}")
 
             # Extract metadata from meta/main.yml
             try:
                 with open(meta_path, "r", encoding="utf-8") as f:
-                    meta_data = yaml.safe_load(f)
+                    meta_data = yaml.safe_load(f) or {}
 
                 galaxy_info = meta_data.get("galaxy_info", {})
-                
                 # If display is set to False ignore it
                 if not galaxy_info.get("display", True):
                     continue
@@ -83,7 +93,7 @@ class LookupModule(LookupBase):
                 icon_class = logo.get("class", "fa-solid fa-cube")
                 tags = galaxy_info.get("galaxy_tags", [])
             except Exception as e:
-                raise AnsibleError("Error reading '{}': {}".format(meta_path, str(e)))
+                raise AnsibleError(f"Error reading '{meta_path}': {e}")
 
             # Retrieve domains and applications from the variables
             domains = variables.get("domains", {})
@@ -107,7 +117,7 @@ class LookupModule(LookupBase):
                 "title": title,
                 "text": description,
                 "url": url,
-                "link_text": "Explore {}".format(title),
+                "link_text": f"Explore {title}",
                 "iframe": iframe,
                 "tags": tags,
             }

roles/web-app-port-ui/meta/main.yml

@@ -1,7 +1,7 @@
 ---
 galaxy_info:
   author: "Kevin Veen-Birkenbach"
-  description: "Portfolio to showcase your projects and creative work with a focus on user experience and easy customization. 🚀"
+  description: "PortUI provides CyMaIS users with a unified web interface to easily access all their applications in one place"
   license: "CyMaIS NonCommercial License (CNCL)"
   license_url: "https://s.veen.world/cncl"
   company: | 

roles/web-app-port-ui/vars/main.yml

@@ -1,4 +1,4 @@
 application_id:             "web-app-port-ui"
-docker_repository_address:  "https://github.com/kevinveenbirkenbach/port-web-ui"
+docker_repository_address:  "https://github.com/kevinveenbirkenbach/port-ui"
 config_inventory_path:      "{{ inventory_dir }}/files/{{ inventory_hostname }}/docker/web-app-port-ui/config.yaml.j2"
 docker_repository:          true

tests/integration/test_all_ports_application_ids_are_valid.py

@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+
+import os
+import unittest
+import yaml
+
+from filter_plugins.get_all_application_ids import get_all_application_ids
+
+class TestApplicationIDsInPorts(unittest.TestCase):
+    def test_all_ports_application_ids_are_valid(self):
+        # Path to the ports definition file
+        ports_file = os.path.abspath(
+            os.path.join(
+                os.path.dirname(__file__), '..', '..', 'group_vars', 'all', '09_ports.yml'
+            )
+        )
+        with open(ports_file, 'r', encoding='utf-8') as f:
+            data = yaml.safe_load(f)
+
+        # Collect all referenced application IDs under ports.hosttype.porttype
+        refs = set()
+        ports = data.get('ports', {}) or {}
+        for hosttype, porttypes in ports.items():
+            if not isinstance(porttypes, dict):
+                continue
+            for porttype, apps in porttypes.items():
+                if not isinstance(apps, dict):
+                    continue
+                for app_id in apps.keys():
+                    refs.add(app_id)
+
+        # Retrieve valid application IDs from Ansible roles
+        valid_ids = set(get_all_application_ids())
+
+        # Identify IDs that are neither valid nor have a valid prefix before the first underscore
+        missing = []
+        for app_id in refs:
+            if app_id in valid_ids:
+                continue
+            prefix = app_id.split('_', 1)[0]
+            if prefix in valid_ids:
+                continue
+            missing.append(app_id)
+
+        if missing:
+            self.fail(
+                f"Undefined application IDs in ports definition: {', '.join(sorted(missing))}"
+            )
+
+if __name__ == '__main__':
+    unittest.main()

tests/integration/test_ansible_roles_metadata.py

@@ -9,10 +9,15 @@ class TestAnsibleRolesMetadata(unittest.TestCase):
 
     @classmethod
     def setUpClass(cls):
-        if not os.path.isdir(cls.ROLES_DIR):
-            raise unittest.SkipTest(f"Roles directory not found at {cls.ROLES_DIR}")
-        cls.roles = [d for d in os.listdir(cls.ROLES_DIR)
-                     if os.path.isdir(os.path.join(cls.ROLES_DIR, d))]
+        all_dirs = os.listdir(cls.ROLES_DIR)
+        cls.roles = [
+            d for d in all_dirs
+            if (
+                os.path.isdir(os.path.join(cls.ROLES_DIR, d))
+                and d != '__pycache__'
+            )
+        ]
+
 
     def test_each_role_has_valid_meta(self):
         """

tests/integration/test_application_id_matches_role_name.py

@@ -1,51 +1,74 @@
 import os
-import unittest
-import yaml
 import glob
+import yaml
 import warnings
+import unittest
 
-class TestApplicationIdMatchesRoleName(unittest.TestCase):
-    def test_application_id_matches_role_directory(self):
-        """
-        Warn if application_id in vars/main.yml does not match
-        the role directory basename, to avoid confusion.
-        If vars/main.yml is missing, do nothing.
-        """
-        # locate the 'roles' directory (two levels up)
+# import your filters
+from filter_plugins.invokable_paths import get_invokable_paths, get_non_invokable_paths
+
+class TestApplicationIdAndInvocability(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        # locate roles dir (two levels up)
         base_dir = os.path.dirname(__file__)
-        roles_dir = os.path.abspath(os.path.join(base_dir, '..', '..', 'roles'))
+        cls.roles_dir = os.path.abspath(os.path.join(base_dir, '..', '..', 'roles'))
 
-        # iterate over each role folder
-        for role_path in glob.glob(os.path.join(roles_dir, '*')):
+        # get lists of invokable and non-invokable role *names*
+        # filters return dash-joined paths; for top-level roles names are just the basename
+        cls.invokable = {
+            p.split('-', 1)[0]
+            for p in get_invokable_paths()
+        }
+        cls.non_invokable = {
+            p.split('-', 1)[0]
+            for p in get_non_invokable_paths()
+        }
+
+    def test_application_id_presence_and_match(self):
+        """
+        - Invokable roles must have application_id defined (else fail).
+        - Non-invokable roles must NOT have application_id (else fail).
+        - If application_id exists but != folder name, warn and recommend aligning.
+        """
+        for role_path in glob.glob(os.path.join(self.roles_dir, '*')):
             if not os.path.isdir(role_path):
                 continue
 
             role_name = os.path.basename(role_path)
             vars_main = os.path.join(role_path, 'vars', 'main.yml')
 
-            # skip roles without vars/main.yml
-            if not os.path.exists(vars_main):
-                continue
-
+            # load vars/main.yml if it exists
+            data = {}
+            if os.path.exists(vars_main):
                 with open(vars_main, 'r', encoding='utf-8') as f:
                     data = yaml.safe_load(f) or {}
 
             app_id = data.get('application_id')
+
+            if role_name in self.invokable:
+                # must have application_id
                 if app_id is None:
+                    self.fail(f"{role_name}: invokable role is missing 'application_id' in vars/main.yml")
+            elif role_name in self.non_invokable:
+                # must NOT have application_id
+                if app_id is not None:
+                    self.fail(f"{role_name}: non-invokable role should not define 'application_id' in vars/main.yml")
+            else:
+                # roles not mentioned in categories.yml? we'll skip them
+                continue
+
+            # if present but mismatched, warn
+            if app_id is not None and app_id != role_name:
                 warnings.warn(
-                    f"{role_name}: 'application_id' is missing in vars/main.yml. "
-                    f"Consider setting it to '{role_name}' to avoid confusion."
-                )
-            elif app_id != role_name:
-                warnings.warn(
-                    f"{role_name}: 'application_id' is '{app_id}', "
-                    f"but the folder name is '{role_name}'. "
-                    "This can lead to confusion—using the directory name "
-                    "as the application_id is recommended."
+                    f"{role_name}: 'application_id' is '{app_id}',"
+                    f" but the folder name is '{role_name}'."
+                    " Consider setting application_id to exactly the role folder name to avoid confusion."
                 )
 
-        # always pass
+        # if we get here, all presence/absence checks passed
         self.assertTrue(True)
 
+
 if __name__ == '__main__':
     unittest.main()

tests/integration/test_dependency_application_id.py

@@ -20,7 +20,8 @@ class TestDependencyApplicationId(unittest.TestCase):
             vars_file = os.path.join(role_path, 'vars', 'main.yml')
             if not os.path.isfile(vars_file):
                 return None
-            data = yaml.safe_load(open(vars_file, encoding='utf-8')) or {}
+            with open(vars_file, encoding='utf-8') as f:
+                data = yaml.safe_load(f) or {}
             return data.get('application_id')
 
         # Iterate all roles
@@ -33,7 +34,9 @@ class TestDependencyApplicationId(unittest.TestCase):
             if not os.path.isfile(meta_file):
                 continue
 
-            meta = yaml.safe_load(open(meta_file, encoding='utf-8')) or {}
+            with open(meta_file, encoding='utf-8') as f:
+                meta = yaml.safe_load(f) or {}
+
             deps = meta.get('dependencies', [])
             if not isinstance(deps, list):
                 continue

tests/integration/test_get_domain_application_ids.py

@@ -0,0 +1,46 @@
+import os
+import re
+import sys
+import unittest
+
+# Ensure filter_plugins is on the path
+PROJECT_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), '..', '..'))
+sys.path.insert(0, PROJECT_ROOT)
+
+from filter_plugins.get_all_application_ids import get_all_application_ids
+
+class TestGetDomainApplicationIds(unittest.TestCase):
+    """
+    Integration test to verify that all string literals passed to get_domain()
+    correspond to valid application_id values defined in roles/*/vars/main.yml.
+    """
+
+    GET_DOMAIN_PATTERN = re.compile(r"get_domain\(\s*['\"]([^'\"]+)['\"]\s*\)")
+
+    def test_get_domain_literals_are_valid_ids(self):
+        # Collect all application IDs from roles
+        valid_ids = set(get_all_application_ids())
+
+        # Walk through project files
+        invalid_usages = []
+        for root, dirs, files in os.walk(PROJECT_ROOT):
+            # Skip tests directory to avoid matching in test code
+            if 'tests' in root.split(os.sep):
+                continue
+            for fname in files:
+                if not fname.endswith('.py'):
+                    continue
+                path = os.path.join(root, fname)
+                with open(path, 'r', encoding='utf-8') as f:
+                    content = f.read()
+                for match in self.GET_DOMAIN_PATTERN.finditer(content):
+                    literal = match.group(1)
+                    if literal not in valid_ids:
+                        invalid_usages.append((path, literal))
+
+        if invalid_usages:
+            msgs = [f"{path}: '{lit}' is not a valid application_id" for path, lit in invalid_usages]
+            self.fail("Found invalid get_domain() usages:\n" + "\n".join(msgs))
+
+if __name__ == '__main__':
+    unittest.main()

tests/integration/test_roles_folder_names.py

@@ -0,0 +1,42 @@
+#!/usr/bin/env python3
+
+import os
+import unittest
+
+class TestRolesFolderNames(unittest.TestCase):
+    def test_no_underscore_in_role_folder_names(self):
+        """
+        Integration test that verifies none of the folders under 'roles' contain an underscore in their name,
+        ignoring the '__pycache__' folder.
+        """
+        # Determine the absolute path to the 'roles' directory
+        roles_dir = os.path.abspath(
+            os.path.join(
+                os.path.dirname(__file__), '..', '..', 'roles'
+            )
+        )
+
+        # List all entries in the roles directory
+        try:
+            entries = os.listdir(roles_dir)
+        except FileNotFoundError:
+            self.fail(f"Roles directory not found at expected location: {roles_dir}")
+
+        # Identify any role folders containing underscores, excluding '__pycache__'
+        invalid = []
+        for name in entries:
+            # Skip the '__pycache__' directory
+            if name == '__pycache__':
+                continue
+            path = os.path.join(roles_dir, name)
+            if os.path.isdir(path) and '_' in name:
+                invalid.append(name)
+
+        # Fail the test if any invalid folder names are found
+        if invalid:
+            self.fail(
+                f"Role folder names must not contain underscores: {', '.join(sorted(invalid))}"
+            )
+
+if __name__ == '__main__':
+    unittest.main()

tests/unit/filter_plugins/test_get_all_application_ids.py

@@ -0,0 +1,55 @@
+import unittest
+import tempfile
+import os
+import yaml
+
+from filter_plugins.get_all_application_ids import get_all_application_ids
+
+class TestGetAllApplicationIds(unittest.TestCase):
+    def setUp(self):
+        # Create a temporary directory to act as the roles base
+        self.tmpdir = tempfile.TemporaryDirectory()
+        self.roles_dir = os.path.join(self.tmpdir.name, 'roles')
+        os.makedirs(self.roles_dir)
+
+    def tearDown(self):
+        # Clean up temporary directory
+        self.tmpdir.cleanup()
+
+    def create_role(self, role_name, data):
+        # Helper to create roles/<role_name>/vars/main.yml with given dict
+        path = os.path.join(self.roles_dir, role_name, 'vars')
+        os.makedirs(path, exist_ok=True)
+        with open(os.path.join(path, 'main.yml'), 'w', encoding='utf-8') as f:
+            yaml.safe_dump(data, f)
+
+    def test_single_application_id(self):
+        self.create_role('role1', {'application_id': 'app1'})
+        result = get_all_application_ids(self.roles_dir)
+        self.assertEqual(result, ['app1'])
+
+    def test_multiple_application_ids(self):
+        self.create_role('role1', {'application_id': 'app1'})
+        self.create_role('role2', {'application_id': 'app2'})
+        result = get_all_application_ids(self.roles_dir)
+        self.assertEqual(sorted(result), ['app1', 'app2'])
+
+    def test_duplicate_application_ids(self):
+        self.create_role('role1', {'application_id': 'app1'})
+        self.create_role('role2', {'application_id': 'app1'})
+        result = get_all_application_ids(self.roles_dir)
+        self.assertEqual(result, ['app1'])
+
+    def test_missing_application_id(self):
+        self.create_role('role1', {'other_key': 'value'})
+        result = get_all_application_ids(self.roles_dir)
+        self.assertEqual(result, [])
+
+    def test_no_roles_directory(self):
+        # Point to a non-existent directory
+        empty_dir = os.path.join(self.tmpdir.name, 'no_roles_here')
+        result = get_all_application_ids(empty_dir)
+        self.assertEqual(result, [])
+
+if __name__ == '__main__':
+    unittest.main()

tests/unit/filter_plugins/test_get_application_id.py

@@ -0,0 +1,63 @@
+# tests/unit/filter_plugins/test_get_application_id.py
+import unittest
+import os
+import tempfile
+import shutil
+import yaml
+from ansible.errors import AnsibleFilterError
+from filter_plugins.get_application_id import get_application_id
+
+class TestGetApplicationIdFilter(unittest.TestCase):
+    def setUp(self):
+        # Create a temporary project directory and switch to it
+        self.tmpdir = tempfile.mkdtemp()
+        self.original_cwd = os.getcwd()
+        os.chdir(self.tmpdir)
+
+        # Create the roles/testrole/vars directory structure
+        self.role_name = 'testrole'
+        self.vars_dir = os.path.join('roles', self.role_name, 'vars')
+        os.makedirs(self.vars_dir)
+        self.vars_file = os.path.join(self.vars_dir, 'main.yml')
+
+    def tearDown(self):
+        # Return to original cwd and remove temp directory
+        os.chdir(self.original_cwd)
+        shutil.rmtree(self.tmpdir)
+
+    def write_vars_file(self, content):
+        with open(self.vars_file, 'w') as f:
+            yaml.dump(content, f)
+
+    def test_returns_application_id(self):
+        # Given a valid vars file with application_id
+        expected_id = '12345'
+        self.write_vars_file({'application_id': expected_id})
+        # When
+        result = get_application_id(self.role_name)
+        # Then
+        self.assertEqual(result, expected_id)
+
+    def test_file_not_found_raises_error(self):
+        # Given no vars file for a nonexistent role
+        with self.assertRaises(AnsibleFilterError) as cm:
+            get_application_id('nonexistent_role')
+        self.assertIn("Vars file not found", str(cm.exception))
+
+    def test_missing_key_raises_error(self):
+        # Given a vars file without application_id
+        self.write_vars_file({'other_key': 'value'})
+        with self.assertRaises(AnsibleFilterError) as cm:
+            get_application_id(self.role_name)
+        self.assertIn("Key 'application_id' not found", str(cm.exception))
+
+    def test_invalid_yaml_raises_error(self):
+        # Write invalid YAML content
+        with open(self.vars_file, 'w') as f:
+            f.write(":::not a yaml:::")
+        with self.assertRaises(AnsibleFilterError) as cm:
+            get_application_id(self.role_name)
+        self.assertIn("Error reading YAML", str(cm.exception))
+
+if __name__ == '__main__':
+    unittest.main()

tests/unit/filter_plugins/test_get_role_folder.py

@@ -5,7 +5,7 @@ import unittest
 import yaml
 
 from ansible.errors import AnsibleFilterError
-from filter_plugins.get_role_folder import get_role_folder
+from filter_plugins.get_role import get_role
 
 class TestGetRoleFolder(unittest.TestCase):
     def setUp(self):
@@ -35,20 +35,20 @@ class TestGetRoleFolder(unittest.TestCase):
 
     def test_find_existing_role(self):
         # Should find role1 for application_id 'app-123'
-        result = get_role_folder('app-123', roles_path=self.roles_dir)
+        result = get_role('app-123', roles_path=self.roles_dir)
         self.assertEqual(result, 'role1')
 
     def test_no_match_raises(self):
         # No role has application_id 'nonexistent'
         with self.assertRaises(AnsibleFilterError) as cm:
-            get_role_folder('nonexistent', roles_path=self.roles_dir)
+            get_role('nonexistent', roles_path=self.roles_dir)
         self.assertIn("No role found with application_id 'nonexistent'", str(cm.exception))
 
     def test_missing_roles_path(self):
         # Path does not exist
         invalid_path = os.path.join(self.tempdir, 'invalid')
         with self.assertRaises(AnsibleFilterError) as cm:
-            get_role_folder('any', roles_path=invalid_path)
+            get_role('any', roles_path=invalid_path)
         self.assertIn(f"Roles path not found: {invalid_path}", str(cm.exception))
 
     def test_invalid_yaml_raises(self):
@@ -59,7 +59,7 @@ class TestGetRoleFolder(unittest.TestCase):
             f.write("::: invalid yaml :::")
 
         with self.assertRaises(AnsibleFilterError) as cm:
-            get_role_folder('app-123', roles_path=self.roles_dir)
+            get_role('app-123', roles_path=self.roles_dir)
         self.assertIn('Failed to load', str(cm.exception))
 
 if __name__ == '__main__':

tests/unit/lookup_plugins/test_docker_cards.py

@@ -1,3 +1,5 @@
+# tests/unit/lookup_plugins/test_docker_cards.py
+
 import os
 import sys
 import tempfile
@@ -9,14 +11,22 @@ sys.path.insert(0, os.path.join(os.path.dirname(__file__), '../../../roles/web-a
 
 from docker_cards import LookupModule
 
+
 class TestDockerCardsLookup(unittest.TestCase):
     def setUp(self):
         # Create a temporary directory to simulate the roles directory.
         self.test_roles_dir = tempfile.mkdtemp(prefix="test_roles_")
-        # Create a sample role "web-app-port-ui".
+
+        # Create a sample role "web-app-port-ui" under that directory.
         self.role_name = "web-app-port-ui"
         self.role_dir = os.path.join(self.test_roles_dir, self.role_name)
         os.makedirs(os.path.join(self.role_dir, "meta"))
+        os.makedirs(os.path.join(self.role_dir, "vars"))
+
+        # Create vars/main.yml so get_application_id() can find the application_id.
+        vars_main = os.path.join(self.role_dir, "vars", "main.yml")
+        with open(vars_main, "w", encoding="utf-8") as f:
+            f.write("application_id: portfolio\n")
 
         # Create a sample README.md with a H1 line for the title.
         readme_path = os.path.join(self.role_dir, "README.md")
@@ -80,7 +90,7 @@ galaxy_info:
             "applications": {
                 "portfolio": {
                     "features": {
-                        "iframe": True
+                        "portfolio_iframe": True
                     }
                 }
             },
@@ -96,5 +106,6 @@ galaxy_info:
         self.assertIsInstance(cards, list)
         self.assertEqual(len(cards), 0)
 
+
 if __name__ == "__main__":
     unittest.main()