refactor: Simplify Dockerfile requirements and enhance health check script with API key validation and connectivity checks

docker/scripts/deploy.sh

@@ -11,7 +11,22 @@ echo -e "${GREEN}=== Deploying Zen MCP Server ===${NC}"
 
 # Function to check if required environment variables are set
 check_env_vars() {
-    local required_vars=("GOOGLE_API_KEY" "OPENAI_API_KEY")
+    # At least one of these API keys must be set
+    local required_vars=("GEMINI_API_KEY" "GOOGLE_API_KEY" "OPENAI_API_KEY" "XAI_API_KEY" "DIAL_API_KEY" "OPENROUTER_API_KEY")
+    
+    local has_api_key=false
+    for var in "${required_vars[@]}"; do
+        if [[ -n "${!var:-}" ]]; then
+            has_api_key=true
+            break
+        fi
+    done
+
+    if [[ "$has_api_key" == false ]]; then
+        echo -e "${RED}Error: At least one API key must be set in your .env file${NC}"
+        printf '  %s\n' "${required_vars[@]}"
+        exit 1
+    fi
     local missing_vars=()
     
     for var in "${required_vars[@]}"; do
@@ -43,6 +58,29 @@ fi
 # Check required environment variables
 check_env_vars
 
+# Exponential backoff health check function
+wait_for_health() {
+    local max_attempts=6
+    local attempt=1
+    local delay=2
+
+    while (( attempt <= max_attempts )); do
+        status=$(docker-compose ps -q zen-mcp | xargs docker inspect -f "{{.State.Health.Status}}" 2>/dev/null || echo "unavailable")
+        if [[ "$status" == "healthy" ]]; then
+            return 0
+        fi
+        echo -e "${YELLOW}Waiting for service to be healthy... (attempt $attempt/${max_attempts}, retrying in ${delay}s)${NC}"
+        sleep $delay
+        delay=$(( delay * 2 ))
+        attempt=$(( attempt + 1 ))
+    done
+
+    echo -e "${RED}Service failed to become healthy after $max_attempts attempts${NC}"
+    echo -e "${YELLOW}Checking logs:${NC}"
+    docker-compose logs zen-mcp
+    exit 1
+}
+
 # Create logs directory if it doesn't exist
 mkdir -p logs