Īnd last but not least, I need to create an ingress. Pay attention to Line 6, where I have the limitation: /protocol. It will respond to gRPC as a protocol because my service has security enabled, and I need to notify my Kong Gateway that my service understands gRPCS protocol. My service will use port 9001 as my target port. After that, I mount those secrets as files in my deployment. You’ll need to use a certificate signed by a certification authority that you trust in a production use case. I’m using a self-signed TLS certificate in this example. And I do provide some certificates in the gRPC server private key. And this port will be available to the service to expose this inside my Kubernetes cluster. My application will be running the GRPC_SERVER on port 9001. Value: 'file:/mnt/grpc-cert-chain/server.crt' name: GRPC_SERVER_SECURITY_CERTIFICATECHAIN image: gamussa/reactive-quote-service:0.0.3 I’m using the same image in my deployment, but my active service will be using version 3. Let’s take a look at the deployment for our Dune Quote service. Protobuf comes with various tools in different languages, including some code generators that support your language of choice. However, you can take this proto file and implement this service in any language that you use. I’m using Java to generate a server-side implementation of the service. Rpc GetQuoteStream() returns (stream QuoteMessage) But in this case, I’m returning a stream of these results. And as a return, it will have a quote message that will include a message field.Īnd another method that I have here is a GetQuoteStream method that also doesn’t require any parameters to provide. That method doesn’t require any input parameter, so we’ll be using the Protobuf empty type. One method is to deliver a simple quote on any gRPC request. My Protobuf definition contains a quote service that uses two methods. Now that we’ve covered the basics, let’s take a look at the Protobuf definition of my Dune Quote service. We felt that native support for gRPC would allow a growing user base to leverage Kong to manage their REST and gRPC services uniformly. Kong supports TCP streams and can proxy any protocol built on top of a TCP or TLS. gRPC has several capabilities that traditional REST APIs struggle with, such as bidirectional streaming and efficient binary encoding. Based on HTTP2 protocol for transport and Protocol Buffer (Protobuf) as the interface definition language, gRPC has seen growing adoption in recent years. GRPC is a procedural framework initially developed by Google in 2015.

Kubernetes and Cloud Native Associate (KCNA)īefore we dive into the code, let’s review a few basics.

Certified Kubernetes Security Specialist (CKS).

Kubernetes Certified Service Provider (KCSP).

Certified Kubernetes Application Developer (CKAD).

Certified Kubernetes Administrator (CKA).

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