@ -17,12 +17,12 @@ The **dockerfiles** in the solution have also been updated and now support [**Do
>**PLEASE** Read our [branch guide](./branch-guide.md) to know about our branching policy
> ### DISCLAIMER
> **IMPORTANT:** The current state of this sample application is **BETA**, because we are constantly evolving towards new released technologies. Therefore, many areas could be improved and change significantly while refactoring current code and implementing new features. Feedback with improvements and pull requests from the community will be highly appreciated and accepted.
> **IMPORTANT:** The current state of this sample application is **BETA**, because we are constantly evolving towards newly released technologies. Therefore, many areas could be improved and change significantly while refactoring the current code and implementing new features. Feedback with improvements and pull requests from the community will be highly appreciated and accepted.
>
> This reference application proposes a simplified microservice oriented architecture implementation to introduce technologies like .NET Core with Docker containers through a comprehensive application. The chosen domain is an eShop/eCommerce but simply because it is a well-know domain by most people/developers.
However, this sample application should not be considered as an "eCommerce reference model", at all. The implemented business domain might not be ideal from an eCommerce business point of view. It is neither trying to solve all the problems in a large, scalable and mission-critical distributed system. It is just a bootstrap for developers to easily get started in the world of Docker containers and microservices with .NET Core.
> This reference application proposes a simplified microservice oriented architecture implementation to introduce technologies like .NET Core with Docker containers through a comprehensive application. The chosen domain is eShop/eCommerce but simply because it is a well-known domain by most people/developers.
However, this sample application should not be considered as an "eCommerce reference model" at all. The implemented business domain might not be ideal from an eCommerce business point of view. It is neither trying to solve all the problems in a large, scalable and mission-critical distributed system. It is just a bootstrap for developers to easily get started in the world of Docker containers and microservices with .NET Core.
> <p>For example, the next step after running the solution in the local dev PC and understanding Docker containers and microservices development with .NET Core, is to select a microservice cluster/orchestrator like Kubernetes in Azure (AKS) or Azure Service Fabric, both environments tested and supported by this solution.
> Additional steps would be to move your databases to HA cloud services (like Azure SQL Database), or switch your EventBus to use Azure Service Bus (instead of bare-bone RabbitMQ) or any other productionready Service Bus in the market.
> Additional steps would be to move your databases to HA cloud services (like Azure SQL Database) or switch your EventBus to use Azure Service Bus (instead of bare-bone RabbitMQ) or any other production-ready Service Bus in the market.
@ -39,7 +39,7 @@ The architecture proposes a microservice oriented architecture implementation wi
> ### Important Note on API Gateways and published APIs
> Since April 2018, we have introduced the implementation of the [API Gateway pattern](http://microservices.io/patterns/apigateway.html) and [Backend-For-Front-End (BFF) pattern](https://samnewman.io/patterns/architectural/bff/) in eShopOnContainers architecture, so you can filter and publish simplified APIs and URIs and apply additional security in that tier while hiding/securing the internal microservices to the client apps or outside consumers. These sample API Gateways in eShopOnContainers are based on [Ocelot](https://github.com/ThreeMammals/Ocelot), an OSS lightweight API Gateway solution explained [here](http://threemammals.com/ocelot). The deployed API Gateways are autonomous and can be deployed as your own custom microservices/containers, as it is currently done in eShopOnContainers, so you can test it even in a simple development environment with just Docker engine or deploy it into orchestrators like Kubernetes in AKS or Service Fabric.
> For your production-ready architecture you can either keep using [Ocelot](https://github.com/ThreeMammals/Ocelot) which is simple and easy to use and used in production by significant companies or if you need further functionality and a much richer set of features suittable for commercial APIs, you can also substitute those API Gateways and use [Azure API Management](https://azure.microsoft.com/en-us/services/api-management/) or any other commercial API Gateway, as shown in the following image.
> For your production-ready architecture you can either keep using [Ocelot](https://github.com/ThreeMammals/Ocelot) which is simple and easy to use and used in production by significant companies or if you need further functionality and a much richer set of features suitable for commercial APIs, you can also substitute those API Gateways and use [Azure API Management](https://azure.microsoft.com/en-us/services/api-management/) or any other commercial API Gateway, as shown in the following image.
@ -56,9 +56,9 @@ The architecture proposes a microservice oriented architecture implementation wi
<p>
> ### Important Note on Database Servers/Containers
> In this solution's current configuration for a development environment, the SQL databases are automatically deployed with sample data into a single SQL Server container (a single shared Docker container for SQL databases) so the whole solution can be up and running without any dependency to any cloud or specific server. Each database could also be deployed as a single Docker container, but then you'd need more than 8GB of RAM assigned to Docker in your development machine in order to be able to run 3 SQL Server Docker containers in your Docker Linux host in "Docker for Windows" or "Docker for Mac" development environments.
> In this solution's current configuration for a development environment, the SQL databases are automatically deployed with sample data into a single SQL Server container (a single shared Docker container for SQL databases) so the whole solution can be up and running without any dependency to any cloud or a specific server. Each database could also be deployed as a single Docker container, but then you'd need more than 8GB of RAM assigned to Docker in your development machine in order to be able to run 3 SQL Server Docker containers in your Docker Linux host in "Docker for Windows" or "Docker for Mac" development environments.
> <p> A similar case is defined in regard to Redis cache running as a container for the development environment. Or a No-SQL database (MongoDB) running as a container.
> <p> However, in a real production environment it is recommended to have your databases (SQL Server, Redis, and the NO-SQL database, in this case) in HA (High Available) services like Azure SQL Database, Redis as a service and Azure CosmosDB instead the MongoDB container (as both systems share the same access protocol). If you want to change to a production configuration, you'll just need to change the connection strings once you have set up the servers in a HA cloud or on-premises.
> <p> However, in a real production environment it is recommended to have your databases (SQL Server, Redis, and the NO-SQL database, in this case) in HA (High Available) services like Azure SQL Database, Redis as a service and Azure CosmosDB instead the MongoDB container (as both systems share the same access protocol). If you want to change to a production configuration, you'll just need to change the connection strings once you have set up the servers in an HA cloud or on-premises.
## Related documentation and guidance
While developing this reference application, we've been creating a reference <b>Guide/eBook</b> focusing on <b>architecting and developing containerized and microservice based .NET Applications</b> (download link available below) which explains in detail how to develop this kind of architectural style (microservices, Docker containers, Domain-Driven Design for certain microservices) plus other simpler architectural styles, like monolithic apps that can also live as Docker containers.
@ -76,12 +76,12 @@ Download in other formats (**eReaders** like **MOBI**, **EPUB**) and other eBook
Send feedback to [dotnet-architecture-ebooks-feedback@service.microsoft.com](dotnet-architecture-ebooks-feedback@service.microsoft.com)
However, we encourage to download and review the [Architecting and Developing Microservices eBook](https://aka.ms/microservicesebook) because the architectural styles and architectural patterns and technologies explained in the guidance are using this reference application when explaining many pattern implementations, so you'll understand much better the context, design and decisions taken in the current architecture and internal designs.
However, we encourage you to download and review the [Architecting and Developing Microservices eBook](https://aka.ms/microservicesebook) because the architectural styles and architectural patterns and technologies explained in the guide are using this reference application when explaining many pattern implementations, so you'll understand the context, design and decisions taken in the current architecture and internal designs much better.
## Overview of the application code
In this repo you can find a sample reference application that will help you to understand how to implement a microservice architecture based application using <b>.NET Core</b> and <b>Docker</b>.
The example business domain or scenario is based on an eShop or eCommerce which is implemented as a multi-container application. Each container is a microservice deployment (like the basket-microservice, catalog-microservice, ordering-microservice and the identity-microservice) which are developed using ASP.NET Core running on .NET Core so they can run either on Linux Containers and Windows Containers.
The example business domain or scenario is based on an eShop or eCommerce which is implemented as a multi-container application. Each container is a microservice deployment (like the basket-microservice, catalog-microservice, ordering-microservice and the identity-microservice) which is developed using ASP.NET Core running on .NET Core so they can run either on Linux Containers and Windows Containers.
The screenshot below shows the VS Solution structure for those microservices/containers and client apps.
- (*Recommended when getting started*) Open <b>eShopOnContainers-ServicesAndWebApps.sln</b> for a solution containing just the server-side projects related to the microservices and web applications.
Ramón Tomás
6 years ago