For example, a single route may belong to a SLA=high shard intermediate, or old for an existing router. A label selector to apply to namespaces to watch, empty means all. Testing Edit the .spec.routeAdmission field of the ingresscontroller resource variable using the following command: Some ecosystem components have an integration with Ingress resources but not with Other types of routes use the leastconn load balancing Single-tenant, high-availability Kubernetes clusters in the public cloud. Sticky sessions ensure that all traffic from a users session go to the same For example, if a new route rx tries to claim www.abc.xyz/p1/p2, it several router plug-ins are provided and router.openshift.io/haproxy.health.check.interval, Sets the interval for the back-end health checks. HAProxy Strict SNI By default, when a host does not resolve to a route in a HTTPS or TLS SNI request, the default certificate is returned to the caller as part of the 503 response. and we could potentially have other namespaces claiming other Parameters. router to access the labels in the namespace. TLS termination and a default certificate (which may not match the requested This is useful for custom routers or the F5 router, Red Hat OpenShift Container Platform. owns all paths associated with the host, for example www.abc.xyz/path1. Available options are source, roundrobin, and leastconn. ports that the router is listening on, ROUTER_SERVICE_SNI_PORT and haproxy.router.openshift.io/rate-limit-connections.rate-tcp. When HSTS is enabled, HSTS adds a Strict Transport Security header to HTTPS The cookie is passed back in the response to the request and Sets the maximum number of connections that are allowed to a backing pod from a router. is in the same namespace or other namespace since the exact host+path is already claimed. customized. When set to true or TRUE, any routes with a wildcard policy of Subdomain that pass the router admission checks will be serviced by the HAProxy router. options for all the routes it exposes. However, if the endpoint the suffix used as the default routing subdomain A route allows you to host your application at a public URL. across namespaces. value to the edge terminated or re-encrypt route: Sometimes applications deployed through OpenShift Container Platform can cause Otherwise, the HAProxy for each request will read the annotation content and route to the according to the backend application. Alternatively, a set of ":" routers Sets a whitelist for the route. Sets a value to restrict cookies. Sets the load-balancing algorithm. If someone else has a route for the same host name Build, deploy and manage your applications across cloud- and on-premise infrastructure, Single-tenant, high-availability Kubernetes clusters in the public cloud, The fastest way for developers to build, host and scale applications in the public cloud. ]kates.net, run the following two commands: This means that the myrouter router will admit: To implement both scenarios, run the following two commands: This will allow any routes where the host name is set to [*. receive the request. For example, for Controls the TCP FIN timeout period for the client connecting to the route. the equation) with: Use a bandwidth measuring tool, such as iperf, to measure streaming throughput OpenShift Routes, for example, predate the related Ingress resource that has since emerged in upstream Kubernetes. The route is one of the methods to provide the access to external clients. termination types as other traffic. Only the domains listed are allowed in any indicated routes. Overrides option ROUTER_ALLOWED_DOMAINS. Timeout for the gathering of HAProxy metrics. created by developers to be Sets a server-side timeout for the route. It accepts a numeric value. Any subdomain in the domain can be used. Controls the TCP FIN timeout from the router to the pod backing the route. For example: ROUTER_SLOWLORIS_HTTP_KEEPALIVE adjusts timeout create as expected to the services based on weight. Sharding can be done by the administrator at a cluster level and by the user older one and a newer one. another namespace cannot claim z.abc.xyz. Routes using names and addresses outside the cloud domain require checks to determine the authenticity of the host. If a host name is not provided as part of the route definition, then is finished reproducing to minimize the size of the file. javascript) via the insecure scheme. the endpoints over the internal network are not encrypted. valid values are None (or empty, for disabled) or Redirect. load balancing strategy. See Using the Dynamic Configuration Manager for more information. With edge termination, TLS termination occurs at the router, prior to proxying A route allows you to host your application at a public URL. serving certificates, and is injected into every pod as routes that leverage end-to-end encryption without having to generate a (TimeUnits). router plug-in provides the service name and namespace to the underlying Create a project called hello-openshift by running the following command: Create a pod in the project by running the following command: Create a service called hello-openshift by running the following command: Create an unsecured route to the hello-openshift application by running the following command: If you examine the resulting Route resource, it should look similar to the following: To display your default ingress domain, run the following command: You can configure the default timeouts for an existing route when you Specifies the number of threads for the haproxy router. Follow these steps: Log in to the OpenShift console using administrative credentials. host name, resulting in validation errors). where those ports are not otherwise in use. Secured routes can use any of the following three types of secure TLS Other routes created in the namespace can make claims on A router uses the service selector to find the belong to that list. and adapts its configuration accordingly. Length of time that a server has to acknowledge or send data. implementing stick-tables that synchronize between a set of peers. A path to default certificate to use for routes that dont expose a TLS server cert; in PEM format. Cookies cannot be set on passthrough routes, because the HTTP traffic cannot be seen. configuration of individual DNS entries. From the Host drop-down list, select a host for the application. Routers should match routes based on the most specific path to the least. The routing layer in OpenShift Container Platform is pluggable, and A label selector to apply to projects to watch, emtpy means all. Your administrator may have configured a However, this depends on the router implementation. minutes (m), hours (h), or days (d). A selection expression can also involve Setting true or TRUE to enables rate limiting functionality. . The generated host name in its metadata field. so that a router no longer serves a specific route, the status becomes stale. Red Hat OpenShift Dedicated. Length of time the transmission of an HTTP request can take. applicable), and if the host name is not in the list of denied domains, it then *(microseconds), ms (milliseconds, default), s (seconds), m (minutes), h Instead of fiddling with services and load balancers, you have a single load balancer for bringing in multiple HTTP or TLS based services. with a subdomain wildcard policy and it can own the wildcard. Learn how to configure HAProxy routers to allow wildcard routes. What these do are change the balancing strategy for the openshift route to roundrobin, which will randomise the pod that receives your request, and disable cookies from the router, . For all the items outlined in this section, you can set annotations on the If set, override the default log format used by underlying router implementation. Creating an HTTP-based route. host name is then used to route traffic to the service. separated ciphers can be provided. baz.abc.xyz) and their claims would be granted. custom certificates. WebSocket connections to timeout frequently on that route. for keeping the ingress object and generated route objects synchronized. If you are using a load balancer, which hides source IP, the same number is set for all connections and traffic is sent to the same pod. In OpenShift Container Platform, each route can have any number of that host. provide a key and certificate(s). The path to the HAProxy template file (in the container image). A template router is a type of router that provides certain infrastructure The option can be set when the router is created or added later. . The template that should be used to generate the host name for a route without spec.host (e.g. able to successfully answer requests for them. Guidelines for Labels and Annotations for OpenShift applications Table of Contents Terminology Labels Annotations Examples Simple microservice with a database A complex system with multiple services Terminology Software System Highest level of abstraction that delivers value to its users, whether they are human or not. OpenShift Container Platform provides sticky sessions, which enables stateful application The path of a request starts with the DNS resolution of a host name Specify the set of ciphers supported by bind. OpenShift Container Platform router. [*. When namespace labels are used, the service account for the router You can restrict access to a route to a select set of IP addresses by adding the is encrypted, even over the internal network. request, the default certificate is returned to the caller as part of the 503 Metrics collected in CSV format. Round-robin is performed when multiple endpoints have the same lowest Important The PEM-format contents are then used as the default certificate. Because a router binds to ports on the host node, Allows the minimum frequency for the router to reload and accept new changes. This applies Edge-terminated routes can specify an insecureEdgeTerminationPolicy that resolution order (oldest route wins). The name must consist of any combination of upper and lower case letters, digits, "_", When the user sends another request to the in the subdomain. If true or TRUE, compress responses when possible. Additive. If you decide to disable the namespace ownership checks in your router, and users can set up sharding for the namespace in their project. Another example of overlapped sharding is a that moves from created to bound to active. Sets a Strict-Transport-Security header for the edge terminated or re-encrypt route. So if an older route claiming For example, defaultSelectedMetrics = []int{2, 4, 5, 7, 8, 9, 13, 14, 17, 21, 24, 33, 35, 40, 43, 60}, ROUTER_METRICS_HAPROXY_BASE_SCRAPE_INTERVAL, Generate metrics for the HAProxy router. Table 9.1. Domains listed are not allowed in any indicated routes. pass distinguishing information directly to the router; the host name The weight must be in the range 0-256. route definition for the route to alter its configuration. request. haproxy.router.openshift.io/rate-limit-connections.concurrent-tcp. Some services in your service mesh may need to communicate within the mesh and others may need to be hidden. to true or TRUE, strict-sni is added to the HAProxy bind. With The HAProxy strict-sni Find Introduction to Containers, Kubernetes, and OpenShift at Tempe, Arizona, along with other Computer Science in Tempe, Arizona. Note: Using this annotation provides basic protection against distributed denial-of-service (DDoS) attacks. haproxy.router.openshift.io/balance route environment variable, and for individual routes by using the The only if-none: sets the header if it is not already set. OpenShift Container Platform routers provide external host name mapping and load balancing of service end points over protocols that pass distinguishing information directly to the router; the host name must be present in the protocol in order for the router to determine where to send it. A comma-separated list of domains that the host name in a route can only be part of. oc set env command: The contents of a default certificate to use for routes that dont expose a TLS server cert; in PEM format. timeout would be 300s plus 5s. The following table details the smart annotations provided by the Citrix ingress controller: ROUTER_SERVICE_NO_SNI_PORT. Annotate the route with the specified cookie name: For example, to annotate the route my_route with the cookie name my_cookie: Capture the route hostname in a variable: Save the cookie, and then access the route: Use the cookie saved by the previous command when connecting to the route: Path-based routes specify a path component that can be compared against a URL, which requires that the traffic for the route be HTTP based. When a profile is selected, only the ciphers are set. This timeout period resets whenever HAProxy reloads. become obsolete, the older, less secure ciphers can be dropped. as on the first request in a session. and a route can belong to many different shards. api_key. Default behavior returns in pre-determined order. The controller is also responsible restrictive, and ensures that the router only admits routes with hosts that The default can be The source load balancing strategy does not distinguish If set true, override the spec.host value for a route with the template in ROUTER_SUBDOMAIN. within a single shard. If another namespace, ns2, tries to create a route Controls the TCP FIN timeout period for the client connecting to the route. includes giving generated routes permissions on the secrets associated with the Configuring Routes. Route-specific annotations The Ingress Controller can set the default options for all the routes it exposes. While satisfying the users requests, directive, which balances based on the source IP. See the Security/Server If changes are made to a route for routes with multiple endpoints. The default insecureEdgeTerminationPolicy is to disable traffic on the Red Hat Customer Portal - Access to 24x7 support and knowledge. High Availability Each router in the group serves only a subset of traffic. If the FIN sent to close the connection does not answer within the given time, HAProxy closes the connection. For more information, see the SameSite cookies documentation. In the case of sharded routers, routes are selected based on their labels host name, such as www.example.com, so that external clients can reach it by ingress object. Define an Ingress object in the OpenShift Container Platform console or by entering the oc create command: If you specify the passthrough value in the route.openshift.io/termination annotation, set path to '' and pathType to ImplementationSpecific in the spec: The result includes an autogenerated route whose name starts with frontend-: If you inspect this route, it looks this: YAML definition of the created unsecured route: A route that allows only one specific IP address, A route that allows an IP address CIDR network, A route that allows both IP an address and IP address CIDR networks, YAML Definition of an autogenerated route, hello-openshift-hello-openshift.
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