One Deployment. Clear Modules. No Microservice Overhead.
Not every team needs microservices. The modular monolith is the pragmatic path: your PHP monolith stays a single artifact but gets structured internally into well-defined bounded contexts.
Why Monoliths Decay from the Inside.
The code lives in one repository. The domain boundaries do not. Over time, nobody knows what belongs where.
Every change breaks something else
Checkout code reads from the users table. The reporting service knows order internals. Nobody planned it. It just happened. Now every change is a minefield.
New developers take months to ramp up
No clear domain structure means no entry point. New teammates read legacy code for weeks without understanding which rules apply where. Velocity drops with every new hire.
Domain boundaries exist only in diagrams
In architecture discussions everyone agrees: orders, customers, and products are separate domains. In the codebase, this is invisible. Classes, traits, and helpers are scattered across all areas.
How Jardis Structures the Modular Monolith.
Jardis generates each bounded context as a standalone PHP package with enforced boundaries. You deploy everything together. The separation is physically enforced regardless.
Hard boundaries at the filesystem level
Each bounded context becomes a standalone PHP package with its own namespace boundary. Direct access to foreign domains is structurally excluded by the package layout. Not a convention, a physical constraint.
Complete domain structure per module
Entities, aggregates, commands, queries, domain events, and the repository pipeline: Jardis generates the full hexagonal architecture for every bounded context. Your team writes only the business logic. The structure is already there.
A stepping stone or a permanent solution
Teams that later want microservices already have cleanly scoped domains in the modular monolith. The generated API contracts and event definitions make extraction a technical step, not an architecture project.
See what three files turn into.
Three definition files in, a complete bounded context out. Browse the generated code.
# Database Schema — Sales Bounded Context
# This file defines the persistent storage structure.
schema:
domain: ECommerce
boundedContext: Sales
tables:
order:
columns:
id:
type: integer
primary: true
autoIncrement: true
public_id:
type: uuid7
unique: true
customer_email:
type: string
length: 255
status:
type: string
length: 32
default: "draft"
total_amount:
type: integer
currency:
type: string
length: 3
default: "EUR"
created_at:
type: datetime
updated_at:
type: datetime
nullable: true
order_item:
columns:
id:
type: integer
primary: true
autoIncrement: true
order_id:
type: integer
foreignKey:
table: order
column: id
onDelete: cascade
product_name:
type: string
length: 255
sku:
type: string
length: 64
quantity:
type: integer
unit_price:
type: integer
line_total:
type: integer
What the Modular Monolith with Jardis Gives You.
The simplicity of a single deployment. The clarity of cleanly separated domains.
Modules That Enforce Boundaries
No reliance on developer discipline. The package structure makes unauthorized domain access structurally impossible. Architecture rules are anchored in the filesystem.
Teams Work in Parallel Without Conflicts
Each team owns its bounded context. Changes in one module do not affect others. Parallel development without coordination overhead.
No Microservice Complexity
No service mesh, no distributed tracing, no network latency debugging. Domain boundaries are clean, the deployment stays simple.
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Answers about the modular monolith with Jardis.
A folder structure is a convention. A modular monolith with standalone PHP packages enforces boundaries at the namespace level. Unauthorized cross-domain access is structurally excluded, not just prevented by review discipline.