[PATCH v2 2/9] Makefile: suppress Ansible warnings during configuration generation

[Luis Chamberlain <mcgrof@kernel.org>]

The initial configuration generation playbooks (ansible_cfg.yml,
gen_hosts.yml, and gen_nodes.yml) run without a proper inventory file
by design, as they are responsible for creating the configuration files
that will be used by subsequent playbooks.

This causes Ansible to emit warnings about:
- "No inventory was parsed, only implicit localhost is available"
- "provided hosts list is empty, only localhost is available"

These warnings are harmless but create noise in the build output,
potentially confusing users who might think something is wrong.

Add ANSIBLE_LOCALHOST_WARNING=False and ANSIBLE_INVENTORY_UNPARSED_WARNING=False
environment variables to these three ansible-playbook invocations to
suppress these specific warnings. This makes the build output cleaner
while maintaining the same functionality.

The warnings were appearing because:
1. ansible_cfg.yml creates the ansible.cfg file
2. gen_hosts.yml creates the hosts inventory file
3. gen_nodes.yml creates the kdevops_nodes.yaml file

All three intentionally run with "--connection=local" and minimal
inventory since they're bootstrapping the configuration that other
playbooks will use.

Generated-by: Claude AI
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
 Makefile | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 37c2522b..31f544e9 100644
--- a/Makefile
+++ b/Makefile
@@ -195,7 +195,8 @@ include scripts/gen-nodes.Makefile
 	false)
 
 $(ANSIBLE_CFG_FILE): .config
-	$(Q)ansible-playbook $(ANSIBLE_VERBOSE) --connection=local \
+	$(Q)ANSIBLE_LOCALHOST_WARNING=False ANSIBLE_INVENTORY_UNPARSED_WARNING=False \
+		ansible-playbook $(ANSIBLE_VERBOSE) --connection=local \
 		--inventory localhost, \
 		$(KDEVOPS_PLAYBOOKS_DIR)/ansible_cfg.yml \
 		--extra-vars=@./.extra_vars_auto.yaml
@@ -226,13 +227,15 @@ endif
 
 DEFAULT_DEPS += $(ANSIBLE_INVENTORY_FILE)
 $(ANSIBLE_INVENTORY_FILE): .config $(ANSIBLE_CFG_FILE) $(KDEVOPS_HOSTS_TEMPLATE)
-	$(Q)ansible-playbook $(ANSIBLE_VERBOSE) \
+	$(Q)ANSIBLE_LOCALHOST_WARNING=False ANSIBLE_INVENTORY_UNPARSED_WARNING=False \
+		ansible-playbook $(ANSIBLE_VERBOSE) \
 		$(KDEVOPS_PLAYBOOKS_DIR)/gen_hosts.yml \
 		--extra-vars=@./extra_vars.yaml
 
 DEFAULT_DEPS += $(KDEVOPS_NODES)
 $(KDEVOPS_NODES): .config $(ANSIBLE_CFG_FILE) $(KDEVOPS_NODES_TEMPLATE)
-	$(Q)ansible-playbook $(ANSIBLE_VERBOSE) --connection=local \
+	$(Q)ANSIBLE_LOCALHOST_WARNING=False ANSIBLE_INVENTORY_UNPARSED_WARNING=False \
+		ansible-playbook $(ANSIBLE_VERBOSE) --connection=local \
 		--inventory localhost, \
 		$(KDEVOPS_PLAYBOOKS_DIR)/gen_nodes.yml \
 		--extra-vars=@./extra_vars.yaml
-- 
2.47.2