Route can be considered as ingress in Kubernetes, an Route can be configured to give services externally-reachable URLs, load balance traffic, terminate SSL, and offer name based virtual hosting. Route exposes HTTP and HTTPS routes from outside the cluster to services within the cluster. Traffic routing is controlled by rules defined on the Ingress resource.
Sign in with project-regular, enter into one project (e.g. demo-namespace), then select Network & Services → Routes.
1.1. Click Create Route button, then fill in the basic information in the pop-up window. There are two ways to create a Route, i.e. fill in the creation table and edit mode. The following mainly introduces each step within creation table. If you prefer edit mode, you can click on the edit mode button, it supports the yaml and json formats. Edit mode makes it easy for users who are used to command operations.
1.2. On the basic information page, enter the name of the Route, you can also fill in the description as required.
Click Next when you're done.
Click Add Route Rule, then fill in the route rules refer to the hints below:
Click Save then choose Next when you're done.
Ingress frequently uses annotations to configure some options depending on the Ingress controller, an example of which is the rewrite-target annotation. Different Ingress controller support different annotations.
For example, add the following annotation to indicate that the
/path is redirected to the root
path/ where can be recognized by the back-end service. The purpose of the redirection annotation is to route the application to the backend workload in the root path, to prevent a page from returning a 404 error due to misconfiguration of the access path.
Then click Next when you're done.
The labels are one or more key-value pairs that are associated with a resource, such as a Pod. We usually identify, organize, or find resource objects through labels, e.g. label selector.
Click on the Create button to complete creation.
The value defined by the hostname field (e.g. demo.kubesphere.io) is the entry for this route, and when the user accesses
demo.kubesphere.io, it's the route that is actually accessed. In this way, KubeSphere can use Route rules to forward your request in the next step.
After the route is created, ensure that the Hostname can be resolved to the IP address of the external network access portal, then the hostname can be accessed. In a private environment, you can use the routes by adding the record in
/etc/hosts file in local.
See an example as following table:
|Hostname||Paths||Access Method||Port/EIP||Node IP|
In the above table, it created two kind of routes using the access NodePort and LoadBalancer methods respectively.
For the NodePort, if it‘s in a private environment, we can directly add a record to the hosts file to resolve the hostname to the corresponding IP. For example, for
demo.kubesphere.io, we add the following record in
Note: The IP address can also use the EIP if you need to expose the route outside.
Next, you need to set up a Gateway under Internet Access. Follow with the steps as the screenshot.
Click Save to generate two kind of node port, i.e. http and https.
You need to ensure that the network between the client and the node(192.168.0.4) is interlinked, then you can access the route via
http://demo.kubesphere.io:31921 (It uses the port 31921 with http protocol as an example).
If the Internet access is set to LoadBalancer, for
demo2.kubesphere.io, you can also use nip.io as the domain name resolution of the route. Nip.io is a free domain resolution service that can resolve the IP corresponding to the hostname in the following format, which can be used as a route resolution service, eliminating to configure the
/etc/hosts file in local.
10.0.0.1.nip.io maps to 10.0.0.1 app.10.0.0.1.nip.io maps to 10.0.0.1 customer1.app.10.0.0.1.nip.io maps to 10.0.0.1 customer2.app.10.0.0.1.nip.io maps to 10.0.0.1 otherapp.10.0.0.1.nip.io maps to 10.0.0.1
For example, the EIP of the cluster is 18.104.22.168. Thus the Hostname field is filled in as
demo2.kubesphere.22.214.171.124.nip.io in the rule, and the others keep the original settings.
Once created, use
http://demo2.kubesphere.126.96.36.199.nip.io to access the corresponding service.