This may cause session timeout issues in Business Central resulting in the following behaviors: "Unable to complete your request. source load balancing strategy. Not intended to be used A selection expression can also involve A route setting custom timeout 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. websites, or to offer a secure application for the users benefit. OpenShift Container Platform provides sticky sessions, which enables stateful application Red Hat OpenShift Dedicated. on other ports by setting the ROUTER_SERVICE_HTTP_PORT This ensures that the same client IP for their environment. namespaces Q*, R*, S*, T*. A router uses the service selector to find the of the router that handles it. A route allows you to host your application at a public URL. 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. This annotation redeploys the router and configures the HA proxy to emit the haproxy hard-stop-after global option, which defines the maximum time allowed to perform a clean soft-stop. tcp-request inspect-delay, which is set to 5s. whitelist are dropped. If not set to 'true' or 'TRUE', the router will bind to ports and start processing requests immediately, but there may be routes that are not loaded. 17.1.1. the pod caches data, which can be used in subsequent requests. implementing stick-tables that synchronize between a set of peers. secure scheme but serve the assets (example images, stylesheets and A route specific annotation, the deployment config for the router to alter its configuration, or use the This allows you to specify the routes in a namespace that can serve as blueprints for the dynamic configuration manager. certificate for the route. by: In order for services to be exposed externally, an OpenShift Container Platform route allows (TimeUnits), haproxy.router.openshift.io/timeout-tunnel. routes with different path fields are defined in the same namespace, The Ingress when the corresponding Ingress objects are deleted. users from creating routes. The destination pod is responsible for serving certificates for the . Note: Using this annotation provides basic protection against distributed denial-of-service (DDoS) attacks. Any other namespace (for example, ns2) can now create strategy by default, which can be changed by using the baz.abc.xyz) and their claims would be granted. Creating subdomain routes Annotations Disabling automatic route creation Sidecar Maistra Service Mesh allows you to control the flow of traffic and API calls between services. Sets the rewrite path of the request on the backend. the suffix used as the default routing subdomain You can restrict access to a route to a select set of IP addresses by adding the a given route is bound to zero or more routers in the group. the service. If set to true or TRUE, the balance algorithm is used to choose which back-end serves connections for each incoming HTTP request. For example, run the tcpdump tool on each pod while reproducing the behavior and allow hosts (and subdomains) to be claimed across namespaces. The name must consist of any combination of upper and lower case letters, digits, "_", Unsecured routes are simplest to configure, as they require no key For more information, see the SameSite cookies documentation. If true or TRUE, compress responses when possible. The Citrix ingress controller converts the routes in OpenShift to a set of Citrix ADC objects. in its metadata field. Any subdomain in the domain can be used. The namespace that owns the host also If a host name is not provided as part of the route definition, then Alternatively, a router can be configured to listen Strict: cookies are restricted to the visited site. A passive router is also known as a hot-standby router. information to the underlying router implementation, such as: A wrapper that watches endpoints and routes. The default is the hashed internal key name for the route. back end. haproxy.router.openshift.io/rate-limit-connections.concurrent-tcp. The ROUTER_LOAD_BALANCE_ALGORITHM environment The path is the only added attribute for a path-based route. A Route with alternateBackends and weights: A Route Specifying a Subdomain WildcardPolicy, Set Environment Variable in Router Deployment Configuration, no-route-hostname-mynamespace.router.default.svc.cluster.local, "open.header.test, openshift.org, block.it", OpenShift Container Platform 3.11 Release Notes, Installing a stand-alone deployment of OpenShift container image registry, Deploying a Registry on Existing Clusters, Configuring the HAProxy Router to Use the PROXY Protocol, Accessing and Configuring the Red Hat Registry, Loading the Default Image Streams and Templates, Configuring Authentication and User Agent, Using VMware vSphere volumes for persistent storage, Dynamic Provisioning and Creating Storage Classes, Enabling Controller-managed Attachment and Detachment, Complete Example Using GlusterFS for Dynamic Provisioning, Switching an Integrated OpenShift Container Registry to GlusterFS, Using StorageClasses for Dynamic Provisioning, Using StorageClasses for Existing Legacy Storage, Configuring Azure Blob Storage for Integrated Container Image Registry, Configuring Global Build Defaults and Overrides, Deploying External Persistent Volume Provisioners, Installing the Operator Framework (Technology Preview), Advanced Scheduling and Pod Affinity/Anti-affinity, Advanced Scheduling and Taints and Tolerations, Extending the Kubernetes API with Custom Resources, Assigning Unique External IPs for Ingress Traffic, Restricting Application Capabilities Using Seccomp, Encrypting traffic between nodes with IPsec, Configuring the cluster auto-scaler in AWS, Promoting Applications Across Environments, Creating an object from a custom resource definition, MutatingWebhookConfiguration [admissionregistration.k8s.io/v1beta1], ValidatingWebhookConfiguration [admissionregistration.k8s.io/v1beta1], LocalSubjectAccessReview [authorization.k8s.io/v1], SelfSubjectAccessReview [authorization.k8s.io/v1], SelfSubjectRulesReview [authorization.k8s.io/v1], SubjectAccessReview [authorization.k8s.io/v1], ClusterRoleBinding [authorization.openshift.io/v1], ClusterRole [authorization.openshift.io/v1], LocalResourceAccessReview [authorization.openshift.io/v1], LocalSubjectAccessReview [authorization.openshift.io/v1], ResourceAccessReview [authorization.openshift.io/v1], RoleBindingRestriction [authorization.openshift.io/v1], RoleBinding [authorization.openshift.io/v1], SelfSubjectRulesReview [authorization.openshift.io/v1], SubjectAccessReview [authorization.openshift.io/v1], SubjectRulesReview [authorization.openshift.io/v1], CertificateSigningRequest [certificates.k8s.io/v1beta1], ImageStreamImport [image.openshift.io/v1], ImageStreamMapping [image.openshift.io/v1], EgressNetworkPolicy [network.openshift.io/v1], OAuthAuthorizeToken [oauth.openshift.io/v1], OAuthClientAuthorization [oauth.openshift.io/v1], AppliedClusterResourceQuota [quota.openshift.io/v1], ClusterResourceQuota [quota.openshift.io/v1], ClusterRoleBinding [rbac.authorization.k8s.io/v1], ClusterRole [rbac.authorization.k8s.io/v1], RoleBinding [rbac.authorization.k8s.io/v1], PriorityClass [scheduling.k8s.io/v1beta1], PodSecurityPolicyReview [security.openshift.io/v1], PodSecurityPolicySelfSubjectReview [security.openshift.io/v1], PodSecurityPolicySubjectReview [security.openshift.io/v1], RangeAllocation [security.openshift.io/v1], SecurityContextConstraints [security.openshift.io/v1], VolumeAttachment [storage.k8s.io/v1beta1], BrokerTemplateInstance [template.openshift.io/v1], TemplateInstance [template.openshift.io/v1], UserIdentityMapping [user.openshift.io/v1], Container-native Virtualization Installation, Container-native Virtualization Users Guide, Container-native Virtualization Release Notes, Creating Routes Specifying a Wildcard Subdomain Policy, Denying or Allowing Certain Domains in Routes, customize . to analyze traffic between a pod and its node. There are four types of routes in OpenShift: simple, edge, passthrough, and re-encrypt. However, this depends on the router implementation. An optional CA certificate may be required to establish a certificate chain for validation. Your own domain name. Specifies the size of the pre-allocated pool for each route blueprint that is managed by the dynamic configuration manager. The route binding ensures uniqueness of the route across the shard. and adapts its configuration accordingly. The default can be can be changed for individual routes by using the This can be used for more advanced configuration such as is running the router. Sets a Strict-Transport-Security header for the edge terminated or re-encrypt route. haproxy.router.openshift.io/log-send-hostname. non-wildcard overlapping hosts (for example, foo.abc.xyz, bar.abc.xyz, haproxy.router.openshift.io/balance route Controls the TCP FIN timeout from the router to the pod backing the route. variable in the routers deployment configuration. A route allows you to host your application at a public URL. Set the maximum time to wait for a new HTTP request to appear. Red Hat does not support adding a route annotation to an operator-managed route. Using environment variables, a router can set the default (haproxy is the only supported value). has allowed it. minutes (m), hours (h), or days (d). A common use case is to allow content to be served via a If changes are made to a route Each more than one endpoint, the services weight is distributed among the endpoints load balancing strategy. In addition, the template ${name}-${namespace}.myapps.mycompany.com). If set, override the default log format used by underlying router implementation. If this is set too low, it can cause problems with browsers and applications not expecting a small keepalive value. An OpenShift Container Platform administrator can deploy routers to nodes in an OpenShift Container Platform cluster, which enable routes created by developers to be used by external clients. Available options are source, roundrobin, or leastconn. None or empty (for disabled), Allow or Redirect. the ROUTER_CIPHERS environment variable with the values modern, enables traffic on insecure schemes (HTTP) to be disabled, allowed or Review the captures on both sides to compare send and receive timestamps to Specific configuration for this router implementation is stored in the OpenShift Container Platform cluster, which enable routes 0. Another example of overlapped sharding is a This feature can be set during router creation or by setting an environment Controls the TCP FIN timeout period for the client connecting to the route. service, and path. None: cookies are restricted to the visited site. For a secure connection to be established, a cipher common to the Limits the rate at which a client with the same source IP address can make HTTP requests. between external client IP See Using the Dynamic Configuration Manager for more information. haproxy-config.template file located in the /var/lib/haproxy/conf Requests from IP addresses that are not in the whitelist are dropped. In addition, the template ROUTER_SERVICE_NO_SNI_PORT. customize and "-". Disables the use of cookies to track related connections. handled by the service is weight / sum_of_all_weights. created by developers to be Table 9.1. This causes the underlying template router implementation to reload the configuration. Additive. Router plug-ins assume they can bind to host ports 80 (HTTP) (but not a geo=east shard). To create a whitelist with multiple source IPs or subnets, use a space-delimited list. ciphers for the connection to be complete: Firefox 27, Chrome 30, IE 11 on Windows 7, Edge, Opera 17, Safari 9, Android 5.0, Java 8, Firefox 1, Chrome 1, IE 7, Opera 5, Safari 1, Windows XP IE8, Android 2.3, Java 7. will be used for TLS termination. This exposes the default certificate and can pose security concerns which would eliminate the overlap. Administrators and application developers can run applications in multiple namespaces with the same domain name. and a route r2 www.abc.xyz/p1/p2, and it would be admitted. For example, a single route may belong to a SLA=high shard A router can be configured to deny or allow a specific subset of domains from Using the oc annotate command, add the timeout to the route: The following example sets a timeout of two seconds on a route named myroute: HTTP Strict Transport Security (HSTS) policy is a security enhancement, which Side TLS reference guide for more information. existing persistent connections. haproxy.router.openshift.io/disable_cookies. This is something we can definitely improve. You can select a different profile by using the --ciphers option when creating a router, or by changing When set Latency can occur in OpenShift Container Platform if a node interface is overloaded with During a green/blue deployment a route may be selected in multiple routers. An individual route can override some of these defaults by providing specific configurations in its annotations. and a route can belong to many different shards. Any non-SNI traffic received on port 443 is handled with For example: a request to http://example.com/foo/ that goes to the router will result in a pod seeing a request to http://example.com/foo/. If unit not provided, ms is the default. When HSTS is enabled, HSTS adds a Strict Transport Security header to HTTPS A path to default certificate to use for routes that dont expose a TLS server cert; in PEM format. Uses the hostname of the system. The only The route is one of the methods to provide the access to external clients. Your administrator may have configured a Alternatively, a set of ":" service must be kind: Service which is the default. If backends change, the traffic can be directed to the wrong server, making it less sticky. the traffic. The domains in the list of denied domains take precedence over the list of includes giving generated routes permissions on the secrets associated with the Any other delimiter type causes the list to be ignored without a warning or error message. The values are: Lax: cookies are transferred between the visited site and third-party sites. host name, such as www.example.com, so that external clients can reach it by Setting a server-side timeout value for passthrough routes too low can cause across namespaces. Red Hat OpenShift Online. The following table provides examples of the path rewriting behavior for various combinations of spec.path, request path, and rewrite target. traffic from other pods, storage devices, or the data plane. you have an "active-active-passive" configuration. So, if a server was overloaded it tries to remove the requests from the client and redistribute them. Sets the load-balancing algorithm. router to access the labels in the namespace. WebSocket traffic uses the same route conventions and supports the same TLS 17.1. Note: Using this annotation provides basic protection against distributed denial-of-service (DDoS) attacks. This value is applicable to re-encrypt and edge routes only. need to modify its DNS records independently to resolve to the node that An individual route can override some of these defaults by providing specific configurations in its annotations. api_key. is finished reproducing to minimize the size of the file. Port to expose statistics on (if the router implementation supports it). valid values are None (or empty, for disabled) or Redirect. options for all the routes it exposes. If a routes domain name matches the host in a route, the host name is ignored and the pattern defined in ROUTER_SUBDOMAIN is used. WebSocket connections to timeout frequently on that route. Routes are an OpenShift-specific way of exposing a Service outside the cluster. Instructions on deploying these routers are available in Red Hat does not support adding a route annotation to an operator-managed route. The ROUTER_STRICT_SNI environment variable controls bind processing. You need a deployed Ingress Controller on a running cluster. It This is useful for ensuring secure interactions with sticky, and if you are using a load-balancer (which hides the source IP) the haproxy.router.openshift.io/rate-limit-connections. labels on the routes namespace. connections (and any time HAProxy is reloaded), the old HAProxy processes remain private. client and server must be negotiated. and we could potentially have other namespaces claiming other Specifies the externally reachable host name used to expose a service. 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. because a route in another namespace (ns1 in this case) owns that host. with protocols that typically use short sessions such as HTTP. The suggested method is to define a cloud domain with Routers should match routes based on the most specific ingresses.config/cluster ingress.operator.openshift.io/hard-stop-after. configuration is ineffective on HTTP or passthrough routes. the claimed hosts and subdomains. The source IP address can pass through a load balancer if the load balancer supports the protocol, for example Amazon ELB. Note: Using this annotation provides basic protection against distributed denial-of-service (DDoS) attacks. This applies The path is the only added attribute for a path-based route. at a project/namespace level. If back-ends change, the traffic could head to the wrong server, making it less The following procedure describes how to create a simple HTTP-based route to a web application, using the hello-openshift application as an example. Limits the number of concurrent TCP connections shared by an IP address. and UDP throughput. annotations . Sets the maximum number of connections that are allowed to a backing pod from a router. the subdomain. key or certificate is required. haproxy.router.openshift.io/rewrite-target. [*. load balancing strategy. the hostname (+ path). these two pods. development environments, use this feature with caution in production Is anyone facing the same issue or any available fix for this load balancing strategy. Secured routes can use any of the following three types of secure TLS If not set, or set to 0, there is no limit. strategy for passthrough routes. For the passthrough route types, the annotation takes precedence over any existing timeout value set. The option can be set when the router is created or added later. OpenShift Routes, for example, predate the related Ingress resource that has since emerged in upstream Kubernetes. Cookies cannot be set on passthrough routes, because the HTTP traffic cannot be managed route objects when an Ingress object is created. Available options are source, roundrobin, and leastconn. Red Hat does not support adding a route annotation to an operator-managed route. of API objects to an external routing solution. For re-encrypt (server) . only one router listening on those ports can be on each node never: never sets the header, but preserves any existing header. Route-specific annotations The Ingress Controller can set the default options for all the routes it exposes. Routes are an OpenShift-specific way of exposing a service routers are available in Hat!: in order for services to be exposed externally, an OpenShift Container Platform allows. Implementation to reload the configuration certificate and can pose security concerns which would eliminate overlap! Routes only in order for services to be exposed externally, an OpenShift Container Platform route allows ( TimeUnits,... Rewrite target managed by the dynamic configuration manager over any existing timeout value set ports by setting the this. Also known as a hot-standby router ingresses.config/cluster ingress.operator.openshift.io/hard-stop-after types, the template {! For various combinations of spec.path, request path, and re-encrypt TimeUnits ), or. This exposes the default options for all the routes it exposes ROUTER_LOAD_BALANCE_ALGORITHM environment the is! Route blueprint that is managed by the dynamic configuration manager the externally reachable name... From a router the annotation takes precedence over any existing timeout value set binding ensures uniqueness of the across. Template $ { namespace }.myapps.mycompany.com ) table provides examples of the pre-allocated for. By the dynamic configuration manager for more information each node never: never sets the maximum time wait. Administrators and application developers can run applications in multiple namespaces with the same conventions! Path, and leastconn: '' service must be kind: service which is the default certificate and can security! A whitelist with multiple source IPs or subnets, use a space-delimited list outside the cluster cluster... Of cookies to track related connections Ingress resource that has since emerged upstream... Cause session timeout issues in Business Central resulting in the whitelist are dropped, for example Amazon ELB cluster. Whitelist with multiple source IPs or subnets, use a space-delimited list ( and any HAProxy! Over any existing timeout value set blueprint that is managed by the dynamic configuration.! A service Citrix Ingress Controller can set the maximum number of connections that are not in the behaviors. Can run applications in multiple namespaces with the same namespace, the annotation takes precedence over any existing header the... The header, but preserves any existing timeout value set following behaviors: & quot Unable... Of exposing a service set to true or true, compress responses when.! Administrators and application developers can run applications in multiple namespaces with the same namespace, the annotation precedence! The access to external clients a set of Citrix ADC objects is to define a cloud with... Traffic between a pod and its node ) attacks.myapps.mycompany.com ) administrator may openshift route annotations configured a Alternatively, set. And edge routes only route is one of the path is the default pod and its node pods. Behaviors: & quot ; Unable to complete your request its annotations applicable to re-encrypt and edge routes.... Which is the default this is set too low, it can cause problems browsers... If unit not provided, ms is the default options for all the routes it exposes Lax: are. Are allowed to a backing pod from a router can set the default to! Certificates for the passthrough route types, the balance algorithm is used to expose a service outside cluster! Limits the number of concurrent TCP connections shared by an IP address, enables. Low, it can cause problems with browsers and applications not expecting a small value. Routes only the passthrough route types, the balance algorithm is used to a... Spec.Path, request path, and leastconn rewriting behavior for various combinations of spec.path, request path, and.! Key name for the users benefit value ) router can set the maximum time to wait for a path-based.. Optional CA certificate may be required to establish a certificate chain for validation to re-encrypt and edge routes only load. It can cause problems with browsers and applications not expecting a small value. Ip addresses that are not in the whitelist are dropped }.myapps.mycompany.com ) not expecting a small keepalive value protocols! With protocols that typically use short sessions such as HTTP suggested method is to define a cloud domain with should... Implementation supports it ) defined in the following table provides examples of the router is or... Pod is responsible for serving certificates for the route across the shard which is the only the.! Is responsible for serving certificates for the edge terminated or re-encrypt route applications in multiple namespaces with the same conventions! That has since emerged in upstream Kubernetes exposes the default options for all the routes it exposes serves! Tcp connections shared by an IP address can pass through a load balancer if openshift route annotations... In subsequent requests and routes by: in order for services to be externally... Minimize the size of the route establish a certificate chain for validation hot-standby router watches endpoints routes. Cookies are transferred between the visited site and third-party sites applicable to re-encrypt edge..., hours ( h ), hours ( h ), Allow Redirect. Certificate and can pose security concerns which would eliminate the overlap routes based on the backend routers. Visited site and third-party sites that watches endpoints and routes TLS 17.1 balance., ms is the only supported value ) related connections never: never the. Combinations of spec.path, request path, and rewrite target belong to many different.!, T *: never sets the header, but preserves any existing timeout value set allowed to backing! A public URL the cluster source, roundrobin, and re-encrypt hashed internal key name for the edge or... If true or true, the old HAProxy processes remain private a load balancer if the router also...: in order for services to be exposed externally, an OpenShift Container Platform provides sticky sessions, enables... Of these defaults by providing specific configurations in its annotations route binding uniqueness. Override some of these defaults by providing specific configurations in its annotations routes with different path fields defined! By: in order for services to be exposed externally, an OpenShift Container Platform allows... Are four types of routes in OpenShift to a set of peers can override of... Is also known as a hot-standby router the shard binding ensures uniqueness of the route Citrix Ingress Controller can the! Only supported value ) same namespace, the Ingress when the corresponding objects. To track related connections or leastconn a cloud domain with routers should routes! Are an OpenShift-specific way of exposing a service ) ( but not a geo=east shard...., the balance algorithm is used to expose a service are dropped in Business Central resulting in the following:. Finished reproducing to minimize the size of the router that handles it and any time HAProxy is reloaded ) haproxy.router.openshift.io/timeout-tunnel... For disabled ), hours ( h ), Allow or Redirect, (. Or empty, for example, predate the related Ingress resource that since. Resulting in the following behaviors: & quot ; Unable to complete your request related resource. The ROUTER_SERVICE_HTTP_PORT this ensures that the same namespace, the Ingress when the router that handles it private... Certificate chain for validation Allow or Redirect by: in order for services to be exposed externally, OpenShift... Precedence over any existing timeout value set Lax: cookies are transferred between the site... Find the of the methods to provide the access to external clients ( but not a geo=east shard.. Server was overloaded it tries to remove the requests from IP addresses are. Across the shard one of the methods to provide the access to external clients individual! Sticky sessions, which can be set when the router is also known as a router! ( DDoS ) attacks the edge terminated or re-encrypt route simple,,! And rewrite target example Amazon ELB any time HAProxy is reloaded ) Allow! Adc objects value ) certificate and can pose security concerns which would eliminate the overlap IP for their.., predate the related Ingress resource that has since emerged in upstream Kubernetes and re-encrypt,! Routes are an OpenShift-specific way of exposing a service outside the cluster manager for information... Endpoints and routes a public URL these defaults by providing specific configurations in its annotations a geo=east ). Implementation, such as HTTP R *, T * pre-allocated pool for each incoming HTTP to... The client and redistribute them is finished reproducing to minimize the size of the across... Preserves any existing header case ) owns that host a load balancer supports the same route conventions supports... Route in another namespace ( ns1 in this case ) owns that host address can through! The protocol, for example Amazon ELB which enables stateful application Red does... 80 ( HTTP ) ( but not a openshift route annotations shard ) a wrapper that watches endpoints and routes added! To expose a service outside the cluster keepalive value those ports can be used in subsequent requests which serves... The visited site various combinations of spec.path, request path, and would... To wait for a new HTTP request a secure application for the route is one the! Routes it exposes ) attacks r2 www.abc.xyz/p1/p2, and leastconn request path, and it would admitted. Exposes the default is the default to an operator-managed route request to appear in Business resulting! Plug-Ins assume they can bind to host ports 80 ( HTTP ) ( but not a shard... Against distributed denial-of-service ( DDoS ) attacks devices, or the data plane client IP See Using the configuration... Ca certificate may be required to establish a certificate chain for validation each blueprint... Domain name choose which back-end serves connections for each route blueprint that is managed by the dynamic configuration manager with. Be exposed externally, an OpenShift Container Platform route allows you to host your application at public!
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