Only require a keyring if collections with signatures will be installed (#77355)

Fixes #77349

lib/ansible/cli/galaxy.py

@@ -667,7 +667,7 @@ class GalaxyCLI(CLI):
     def _get_default_collection_path(self):
         return C.COLLECTIONS_PATHS[0]
 
-    def _parse_requirements_file(self, requirements_file, allow_old_format=True, artifacts_manager=None):
+    def _parse_requirements_file(self, requirements_file, allow_old_format=True, artifacts_manager=None, validate_signature_options=True):
         """
         Parses an Ansible requirement.yml file and returns all the roles and/or collections defined in it. There are 2
         requirements file format:
@@ -761,6 +761,7 @@ class GalaxyCLI(CLI):
                 Requirement.from_requirement_dict(
                     self._init_coll_req_dict(collection_req),
                     artifacts_manager,
+                    validate_signature_options,
                 )
                 for collection_req in file_requirements.get('collections') or []
             ]
@@ -1256,15 +1257,18 @@ class GalaxyCLI(CLI):
                 if not (requirements_file.endswith('.yaml') or requirements_file.endswith('.yml')):
                     raise AnsibleError("Invalid role requirements file, it must end with a .yml or .yaml extension")
 
+                galaxy_args = self._raw_args
+                will_install_collections = self._implicit_role and '-p' not in galaxy_args and '--roles-path' not in galaxy_args
+
                 requirements = self._parse_requirements_file(
                     requirements_file,
                     artifacts_manager=artifacts_manager,
+                    validate_signature_options=will_install_collections,
                 )
                 role_requirements = requirements['roles']
 
                 # We can only install collections and roles at the same time if the type wasn't specified and the -p
                 # argument was not used. If collections are present in the requirements then at least display a msg.
-                galaxy_args = self._raw_args
                 if requirements['collections'] and (not self._implicit_role or '-p' in galaxy_args or
                                                     '--roles-path' in galaxy_args):
 

lib/ansible/galaxy/dependency_resolution/dataclasses.py

@@ -264,7 +264,7 @@ class _ComputedReqKindsMixin:
         return cls.from_requirement_dict(req, artifacts_manager)
 
     @classmethod
-    def from_requirement_dict(cls, collection_req, art_mgr):
+    def from_requirement_dict(cls, collection_req, art_mgr, validate_signature_options=True):
         req_name = collection_req.get('name', None)
         req_version = collection_req.get('version', '*')
         req_type = collection_req.get('type')
@@ -272,7 +272,7 @@ class _ComputedReqKindsMixin:
         req_source = collection_req.get('source', None)
         req_signature_sources = collection_req.get('signatures', None)
         if req_signature_sources is not None:
-            if art_mgr.keyring is None:
+            if validate_signature_options and art_mgr.keyring is None:
                 raise AnsibleError(
                     f"Signatures were provided to verify {req_name} but no keyring was configured."
                 )

test/integration/targets/ansible-galaxy-collection/tasks/install.yml

@@ -453,6 +453,33 @@
     not_mine: "file://{{ gpg_homedir }}/namespace1-name1-1.0.0-MANIFEST.json.asc"
     also_not_mine: "file://{{ gpg_homedir }}/namespace1-name1-1.0.9-MANIFEST.json.asc"
 
+- name: installing only roles does not fail if keyring for collections is not provided
+  command: ansible-galaxy role install -r {{ galaxy_dir }}/ansible_collections/requirements.yaml
+  register: roles_only
+
+- assert:
+    that:
+      - roles_only is success
+
+- name: installing only roles implicitly does not fail if keyring for collections is not provided
+  # if -p/--roles-path are specified, only roles are installed
+  command: ansible-galaxy install -r {{ galaxy_dir }}/ansible_collections/requirements.yaml }} -p {{ galaxy_dir }}
+  register: roles_only
+
+- assert:
+    that:
+      - roles_only is success
+
+- name: installing roles and collections requires keyring if collections have signatures
+  command: ansible-galaxy install -r {{ galaxy_dir }}/ansible_collections/requirements.yaml }}
+  ignore_errors: yes
+  register: collections_and_roles
+
+- assert:
+    that:
+      - collections_and_roles is failed
+      - "'no keyring was configured' in collections_and_roles.stderr"
+
 - name: install collection with mutually exclusive options
   command: ansible-galaxy collection install -r {{ req_file }} -s {{ test_name }} {{ cli_signature }}
   vars: