During staging validation of PR #1385 on 2026-06-23, the fresh deployment node applied Deployment Test 1 successfully but logged:\n\n\ndeploy.mountGuard: could not parse compose YAML for volume check — guard skipped\nerror="yaml: unmarshal errors:\n line 45: cannot unmarshal !!map into string"\n\n\nEvidence:\n- Project: Deployment Test 1 (01KVRJCC7Y3NSDQYCPWDRPVJVH)\n- Environment: r2-validation (01KVT1H89TP88K1ESN7HTSKS1C)\n- Release: 01KVT1KTZJMYG0GFK0FKY283ND v1\n- Node: 01KVT1KVGZ8S9NZHKHKAV0QFP6\n- Compose contains long-syntax entries such as service ports and named volume mount maps.\n\nThe release still applied and app containers ran, so this is not blocking the R2 transport validation. It should be investigated because the mount guard skipping parse may weaken the intended protection for supported Compose long syntax.\n
During staging validation of PR #1385 on 2026-06-23, the fresh deployment node applied Deployment Test 1 successfully but logged:\n\n
\ndeploy.mountGuard: could not parse compose YAML for volume check — guard skipped\nerror="yaml: unmarshal errors:\n line 45: cannot unmarshal !!map into string"\n\n\nEvidence:\n- Project: Deployment Test 1 (01KVRJCC7Y3NSDQYCPWDRPVJVH)\n- Environment: r2-validation (01KVT1H89TP88K1ESN7HTSKS1C)\n- Release: 01KVT1KTZJMYG0GFK0FKY283ND v1\n- Node: 01KVT1KVGZ8S9NZHKHKAV0QFP6\n- Compose contains long-syntax entries such as service ports and named volume mount maps.\n\nThe release still applied and app containers ran, so this is not blocking the R2 transport validation. It should be investigated because the mount guard skipping parse may weaken the intended protection for supported Compose long syntax.\n