By Christian Posta Solo. A lot of Gloo users put Gloo at the edge and integrate with Istio for east-west traffic management. In the Istio 1. The way mTLS is implemented in Istio has also changed a bit. For example, In the past, Istio would create secrets for each service account and mount those in for the workloads to assume their identity. That has now changed. Gloo has had integration with Istio SDS for a while now while giving the option to use SDS more secure or the secret mounting approach, but now with the Istio 1.
There are two different approaches to doing this. The supported way for Gloo OSS is to load an Istio proxy and istio-agent to connect to the mesh and pull down the certificates and allow upstreams to use that.
This requires, unfortunately, running another Envoy next to the Gloo proxy also based on Envoy that does nothing other than pull down certificates. This is the recommended way to accomplish integration with SDS and Istio. However, for Gloo Enterprise, we feel we can do better.
We have a custom build of the istio-agent that can serve SDS for Istio without the need for running an entirely separate Envoy. Kubernetes Ingress with Cert-Manager. Istio as a Proxy for External Services. Change in Secret Discovery Service in Istio 1. Taking advantage of Kubernetes trustworthy JWTs to issue certificates for workload instances more securely.
The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.
As I am new to istio, along with all my team members, we would really appreciate if we can get some help here. After that I restarted my istio-ingressgateway pod so that it loads the certs.
Which aanyway I can see inside the pod when I exec. My virtualService and Gateway resources looks like this which are residing in 'default' namespace:. Note that mlf-is service is in default namespace too. Only the istio-ingressgateway is in the istio-system namespace. However, I am not able to reach the service. Error from curl: Trying Learn more.
Asked 1 year, 7 months ago. Active 2 days ago. Viewed 1k times. Installed istio. Yoda Yoda 2 2 silver badges 13 13 bronze badges. What is the protocol on the port of mlf-is? Can you connect to it from inside the cluster?
VadimEisenberg http, yes able to access from inside the cluster. I added port 80 in my gateway resource with httpsRedirect set to true and my requests started passing.
Many people seems to be facing that issue : github. Active Oldest Votes. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown.The gateway to each cluster can have its own port or load balancer, which is unrelated to a service mesh. If this is the only gateway to your cluster, Istio will be able to route traffic from service to service, but Istio will not be able to receive traffic from outside the cluster.
When you enable the Istio gateway, the result is that your cluster will have two ingresses. You will also need to set up a Kubernetes gateway for your services. This section describes how to set up the NodePort gateway.
For more information on the Istio gateway, refer to the Istio documentation. The ingress gateway is a Kubernetes service that will be deployed in your cluster. There is only one Istio gateway per cluster. Result: The gateway is deployed, which allows Istio to receive traffic from outside the cluster.
Result: You have configured your gateway resource so that Istio can receive traffic from outside the cluster. To test and see if the BookInfo app deployed correctly, the app can be viewed a web browser using the Istio controller IP and port, combined with the request name specified in your Kubernetes gateway resource:.
The official Istio documentation suggests kubectl commands to inspect the correct ingress host and ingress port for external requests. You can try the steps in this section to make sure the Kubernetes gateway is configured properly. To make sure the label is appropriate for the gateway, do the following:.
Rancher 2. Set up the Istio Gateway. Set up Infrastructure 2. Set up a Kubernetes Cluster 3. Set up Infrastructure and Private Registry 2. Collect and Publish Images to your Private Registry 3.
Istio on GKE
Prepare your Node s 2. Enable Istio in a Namespace 3. Add Deployments and Services with the Istio Sidecar 5. Set up the Istio Gateway 6. Set up Istio's Components for Traffic Management 7. Get Started 2. Expose Your Services 4. Configure Health Checks 5. Schedule Your Services 6. Service Discovery 7. Load Balancing. Set up the Istio Gateway The gateway to each cluster can have its own port or load balancer, which is unrelated to a service mesh.
Enable the Istio Gateway The ingress gateway is a Kubernetes service that will be deployed in your cluster. Go to the cluster where you want to allow outside traffic into Istio.
Expand the Ingress Gateway section. Under Enable Ingress Gateway, click True. The default type of service for the Istio gateway is NodePort.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Have a question about this project?
Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. Describe the feature request I found that istio 1. So it is possible to perform HTTP 1.
But this configuration is not propagated to the envoy instance in istio-ingressgateway component and in the result external request is blocked with such response:. Describe alternatives you've considered nginx ingress supports http 1. Additional context Related issue: Related PR: As it stands, PR only added the logic to support that flag in the buildSidecarListeners logic, see here.
GregHanson pbochynski even i am facing the same issue, where my go based micro service is not functioning over ingress gateway!
GregHanson I would like to contribute to this, is anyone already working on that? Related PR: Sorry I am new to istio. But can someone please guide me how do I make envoy and gateway accept http1. In the comments I can see that PR is merged and code is there. Please provide the instructions. If there is any manual configurations please let me know. After couple hours of source digging, adding below to helm values did the trick of setting the right ENV for the ingressgateway pods:.
Just looking to edify myself on the inner workings of istio. I'm not seeing anything when I search this project in github. Line in c70f.
Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.
Sign up. New issue. Jump to bottom. Support for http 1.Field CTO at solo. I have chosen to write this to help bring real concrete explanation to help clarify differences, overlap, and when to use which. First disclosure: I work for a company, Solo.
But to be sure, I came to work at Solo. On the other hand, some get closer to the way I think about them. I also would like to see serious discussion about how people see the trade offs between different approaches.
People are confused and overwhelmed with choices.
Extending Istio 1.5 with Gloo API Gateway
For example, from the Istio Ingress Gateway docs:. The first order of business is to recognize the areas where the capabilities of an API Gateway and a service mesh seem to overlap. Both handle application traffic, so overlap should not be surprising. The following listing enumerates some of the overlapping capabilities:. The service mesh operates at a lower level than the API Gateway and on all of the individual services within the architecture.
See my talk on the evolution of the service-mesh data plane from ServiceMeshCon. The issues at the boundary of an application architecture are not the same as those within the boundary. From a functionality standpoint, what would an API Gateway need to support? This provides a nice decoupling point from clients when backend services are making changes to the API or when clients cannot update as fast as the provider.
They may wish to expose these with a tighter, client-specific API and continue to have interoperability. Transforming requests from upstream services is a vital capability of an API Gateway, but so too is customizing responses coming from the gateway itself.
There is no one-size fits all proxying expectation. Exposing an abstraction over multiple services often comes with the expectation of mashing up multiple APIs into a single API. Something like GraphQL could fit this bill.
As you can see, providing a powerful decoupling point between clients and provider services involves more than just allowing HTTP traffic into the cluster. This means, the gateway will need deep understanding of the requests coming into the architecture or those requests coming out.
The edge is a natural place to help implement these policies. The last major piece of functionality that an API Gateway provides is edge security. This involves challenging users and services that exist outside of the application architecture to provide identity and scope policies so that access to specific services and business functionality can be restricted.The specification describes a set of ports that should be exposed, the type of protocol to use, SNI configuration for the load balancer, etc.
For example, the following Gateway configuration sets up a proxy to act as a load balancer exposing port 80 and httphttpshttps and port TCP for ingress.
The gateway will be applied to the proxy running on a pod with labels app: my-gateway-controller. While Istio will configure the proxy to listen on these ports, it is the responsibility of the user to ensure that external traffic to these ports are allowed into the mesh.
The Gateway specification above describes the L4-L6 properties of a load balancer. A VirtualService can then be bound to a gateway to control the forwarding of traffic arriving at a particular host or gateway port. This rule is applicable across ports The following VirtualService forwards traffic arriving at external port to internal Mongo server on port This rule is not applicable internally in the mesh as the gateway list omits the reserved name mesh.
For example, the following Gateway allows any virtual service in the ns1 namespace to bind to it, while restricting only the virtual service with foo.
The scope of label search is restricted to the configuration namespace in which the the resource is present.
In other words, the Gateway resource must reside in the same namespace as the gateway workload instance. Server describes the properties of the proxy on a given load balancer port. For example. One or more hosts exposed by this gateway.
The dnsName should be specified using FQDN format, optionally including a wildcard character in the left-most component e. Any associated DestinationRule in the same namespace will also be used. A VirtualService must be bound to the gateway and must have one or more hosts that match the hosts specified in a server. However, a VirtualService with host example. Private configurations e.
Use these options to control if all http requests should be redirected to https, and the TLS modes to use. The loopback IP endpoint or Unix domain socket to which traffic should be forwarded to by default. Format should be If set to true, the load balancer will send a redirect for all http connections, asking the clients to use HTTPS. Optional: Indicates whether connections to this port should be secured using TLS. The value of this field determines how TLS is enforced. The path to the file holding the server-side TLS certificate to use.
The path to a file containing certificate authority certificates to use in verifying a presented client side certificate. The credentialName stands for a unique identifier that can be used to identify the serverCertificate and the privateKey. Gateway workloads capable of fetching credentials from a remote credential store such as Kubernetes secrets, will be configured to retrieve the serverCertificate and the privateKey using credentialName, instead of using the file system paths specified above.
The semantics of the name are platform dependent. In Kubernetes, the default Istio supplied credential server expects the credentialName to match the name of the Kubernetes secret that holds the server certificate, the private key, and the CA certificate if using mutual TLS. A list of alternate names to verify the subject identity in the certificate presented by the client.
Optional: If specified, only support the specified cipher list. Otherwise default to the default cipher list supported by Envoy. The SNI string presented by the client will be used as the match criterion in a VirtualService TLS route to determine the destination service from the service registry.Istio on GKE is an add-on for GKE that lets you quickly create a cluster with all the components you need to create and run an Istio service mesh, in a single step. Once installed, your Istio control plane components are automatically kept up-to-date, with no need for you to worry about upgrading to new versions.
You can also use the add-on to install Istio on an existing cluster. Istio is an open service mesh that provides a uniform way to connect, manage, and secure microservices. It supports managing traffic flows between services, enforcing access policies, and aggregating telemetry data, all without requiring changes to the microservice code. You configure Istio access control, routing rules, and so on using a custom Kubernetes API, either via kubectl or the Istio command line tool istioctlwhich provides extra validation.
You can find out much more about Istio in our overview and read the full open source documentation set at istio. This lets you easily manage the installation and upgrade of Istio as part of the GKE cluster lifecycle.
There is no service level agreement SLA on the Istio components running in your cluster. While Istio on GKE does manage installation and upgrade, it uses default installation options for the control plane that are suited for most needs. However, you should be aware of these limitations:.Building cloud-native applications with Kubernetes and Istio, by Kelsey Hightower
The version of Istio installed is tied to the GKE version, and you will not be able to update them independently.
There are strong limitations over the configuration of the control plane. You should review these limitations before using the Istio on GKE add-on in production. If you need to use a more recent open source version of Istio, or want greater control over your Istio control plane configuration which may happen in some production use caseswe recommend that you use the open source version of Istio rather than the Istio on GKE add-on.
If you no longer want to use our automatic installation functionality for whatever reason, you can uninstall the add-on. When you create or update a cluster with Istio on GKE, the following core Istio components are installed:.
The installation also lets you add the Istio sidecar proxy to your service workloads, allowing them to communicate with the control plane and join the Istio mesh. You can find out more about installing and uninstalling the add-on and your installation options in Installing Istio on GKE.
For clusters with Google Kubernetes Engine Monitoring enabled, the Istio Stackdriver adapter is installed along with the core components described above. The adapter can send metrics, logging, and trace data from your mesh to Cloud Logging, Cloud Monitoring, or Cloud Trace, providing observability into your services' behavior in the Google Cloud Console.
Once you've enabled a particular Cloud Logging, Cloud Monitoring, or Cloud Trace feature for your project and cluster, that data is sent from your mesh by default. If the Cloud Monitoring API is enabled in your Google Cloud project, your Istio mesh will automatically send metrics related to your services such as the number of bytes received by a particular service to Monitoring, where they will appear in the Metrics Explorer.
You can use these metrics to create custom dashboards and alerts, letting you monitor your services over time and receive alerts when, for example, a service is nearing a specified number of requests. You can also combine these metrics using filters and aggregations with Monitoring's built-in metrics to get new insights into your service behavior.
For a full list of Istio metrics, see the Cloud Monitoring documentation. See the Cloud Logging documentation to find out more about what you can do with the log data, such as exporting logs to BigQuery. You can enable Cloud Trace so that your Istio mesh automatically sends trace data to Cloud Trace, where it appears in the trace viewer. Note that to get the most from distributed tracing to help find performance bottlenecks, you will need to change your workloads to instrument tracing headers.