fix: redis/fastapi-cache2 compatibility and vault test typo

- Pin redis to 4.6.0 (latest 4.x) for fastapi-cache2 compatibility
  - fastapi-cache2 0.2.2 requires redis>=4.2.0rc1,<5.0.0
  - redis 4.3.0+ required for redis.asyncio.cluster module
- Fix CacheManager to not use decode_responses=True
  - fastapi-cache2 stores binary data, requires decode_responses=False
- Fix typo in vault test: $PROJECT_RO../devstack -> $PROJECT_ROOT/devstack

All 17 test suites (571+ tests) pass.

Author: NormB

reference-apps/fastapi-api-first/app/middleware/cache.py

@@ -166,11 +166,9 @@ async def init(self, redis_url: str, prefix: str = "cache:"):
             prefix: Cache key prefix
         """
         try:
-            self.redis_client = aioredis.from_url(
-                redis_url,
-                encoding="utf8",
-                decode_responses=True
-            )
+            # Note: decode_responses must be False (default) for fastapi-cache2
+            # as it stores cached data as binary/bytes
+            self.redis_client = aioredis.from_url(redis_url)
 
             # Test connection
             await self.redis_client.ping()

reference-apps/fastapi-api-first/requirements.txt

@@ -19,7 +19,9 @@ motor==3.7.1
 pymongo==4.15.5
 
 # Redis and Caching
-redis[hiredis]==7.1.0  # Compatible with fastapi-cache2 (requires <5.0.0)
+# redis 4.3.0+ required for redis.asyncio.cluster module used by fastapi-cache2
+# redis 4.6.0 is the latest 4.x version compatible with fastapi-cache2 (<5.0.0 requirement)
+redis[hiredis]==4.6.0  # fastapi-cache2 0.2.2 requires redis>=4.2.0rc1,<5.0.0
 fastapi-cache2[redis]==0.2.2  # Response caching
 
 # RabbitMQ

reference-apps/fastapi/app/middleware/cache.py

@@ -166,11 +166,9 @@ async def init(self, redis_url: str, prefix: str = "cache:"):
             prefix: Cache key prefix
         """
         try:
-            self.redis_client = aioredis.from_url(
-                redis_url,
-                encoding="utf8",
-                decode_responses=True
-            )
+            # Note: decode_responses must be False (default) for fastapi-cache2
+            # as it stores cached data as binary/bytes
+            self.redis_client = aioredis.from_url(redis_url)
 
             # Test connection
             await self.redis_client.ping()

reference-apps/fastapi/requirements.txt

@@ -15,7 +15,9 @@ motor==3.7.1
 pymongo==4.15.5
 
 # Redis and Caching
-redis[hiredis]==7.1.0  # fastapi-cache2 0.2.2 requires redis<5.0.0
+# redis 4.3.0+ required for redis.asyncio.cluster module used by fastapi-cache2
+# redis 4.6.0 is the latest 4.x version compatible with fastapi-cache2 (<5.0.0 requirement)
+redis[hiredis]==4.6.0  # fastapi-cache2 0.2.2 requires redis>=4.2.0rc1,<5.0.0
 fastapi-cache2[redis]==0.2.2  # Response caching
 
 # RabbitMQ

tests/test-vault.sh

@@ -567,13 +567,13 @@ test_management_commands() {
     info "Test 10: Management script Vault commands work"
 
     # Test vault-status
-    if "$PROJECT_RO../devstack" vault-status &>/dev/null; then
+    if "$PROJECT_ROOT/devstack" vault-status &>/dev/null; then
         # Test vault-token
-        local token=$("$PROJECT_RO../devstack" vault-token 2>/dev/null)
+        local token=$("$PROJECT_ROOT/devstack" vault-token 2>/dev/null)
 
         if [ -n "$token" ]; then
             # Test vault-show-password
-            local password=$("$PROJECT_RO../devstack" vault-show-password postgres 2>/dev/null)
+            local password=$("$PROJECT_ROOT/devstack" vault-show-password postgres 2>/dev/null)
 
             if [ -n "$password" ]; then
                 success "Management commands work correctly"