Red Hat OpenShift Service on AWS (ROSA) with hosted control planes (HCP) service definition

Red Hat OpenShift Service on AWS is billed directly to your Amazon Web Services (AWS) account. ROSA pricing is consumption based, with annual commitments or three-year commitments for greater discounting. The total cost of ROSA consists of two components:

Visit the Red Hat OpenShift Service on AWS Pricing page on the AWS website for more details.

Customers can self-service their clusters, including, but not limited to:

You can perform these self-service tasks using the Red Hat OpenShift Service on AWS (ROSA) CLI, rosa.

All ROSA with HCP clusters require a minimum of 2 worker nodes. Shutting down the underlying infrastructure through the cloud provider console is unsupported and can lead to data loss.

The following AWS regions are currently available for ROSA with HCP.

Multiple availability zone clusters can only be deployed in regions with at least 3 availability zones. For more information, see the Regions and Availability Zones section in the AWS documentation.

Each new ROSA with HCP cluster is installed within a preexisting Virtual Private Cloud (VPC) in a single region, with the option to deploy up to the total number of availability zones for the given region. This provides cluster-level network and resource isolation, and enables cloud-provider VPC settings, such as VPN connections and VPC Peering. Persistent volumes (PVs) are backed by Amazon Elastic Block Storage (Amazon EBS), and are specific to the availability zone in which they are provisioned. Persistent volume claims (PVCs) do not bind to a volume until the associated pod resource is assigned into a specific availability zone to prevent unschedulable pods. Availability zone-specific resources are only usable by resources in the same availability zone.

Red Hat OpenShift Service on AWS (ROSA) with hosted control planes (HCP) does not support the use of AWS Local Zones.

Any SLAs for the service itself are defined in Appendix 4 of the Red Hat Enterprise Agreement Appendix 4 (Online Subscription Services).

When a cluster transitions to a Limited Support status, Red Hat no longer proactively monitors the cluster, the SLA is no longer applicable, and credits requested against the SLA are denied. It does not mean that you no longer have product support. In some cases, the cluster can return to a fully-supported status if you remediate the violating factors. However, in other cases, you might have to delete and recreate the cluster.

A cluster might move to a Limited Support status for many reasons, including the following scenarios:

If you have questions about a specific action that might cause a cluster to move to a Limited Support status or need further assistance, open a support ticket.

Red Hat OpenShift Service on AWS includes Red Hat Premium Support, which can be accessed by using the Red Hat Customer Portal.

See the Red Hat Production Support Terms of Service for support response times.

AWS support is subject to a customer’s existing support contract with AWS.

Cluster audit logs are available through AWS CloudWatch, if the integration is enabled. If the integration is not enabled, you can request the audit logs by opening a support case.

Application logs sent to STDOUT are collected by Fluentd and forwarded to AWS CloudWatch through the cluster logging stack, if it is installed.

Red Hat OpenShift Service on AWS clusters come with an integrated Prometheus stack for cluster monitoring including CPU, memory, and network-based metrics. This is accessible through the web console. These metrics also allow for horizontal pod autoscaling based on CPU or memory metrics provided by an Red Hat OpenShift Service on AWS user.

Cluster notifications are messages about the status, health, or performance of your cluster.

Cluster notifications are the primary way that Red Hat Site Reliability Engineering (SRE) communicates with you about the health of your managed cluster. SRE may also use cluster notifications to prompt you to perform an action in order to resolve or prevent an issue with your cluster.

Cluster owners and administrators must regularly review and action cluster notifications to ensure clusters remain healthy and supported.

You can view cluster notifications in the Red Hat Hybrid Cloud Console, in the Cluster history tab for your cluster. By default, only the cluster owner receives cluster notifications as emails. If other users need to receive cluster notification emails, add each user as a notification contact for your cluster.

To use a custom hostname for a route, you must update your DNS provider by creating a canonical name (CNAME) record. Your CNAME record should map the OpenShift canonical router hostname to your custom domain. The OpenShift canonical router hostname is shown on the Route Details page after a route is created. Alternatively, a wildcard CNAME record can be created once to route all subdomains for a given hostname to the cluster’s router.

Red Hat OpenShift Service on AWS includes TLS security certificates needed for both internal and external services on the cluster. For external routes, there are two separate TLS wildcard certificates that are provided and installed on each cluster: one is for the web console and route default hostnames, and the other is for the API endpoint. Let’s Encrypt is the certificate authority used for certificates. Routes within the cluster, such as the internal API endpoint, use TLS certificates signed by the cluster’s built-in certificate authority and require the CA bundle available in every pod for trusting the TLS certificate.

Red Hat OpenShift Service on AWS supports the use of custom certificate authorities to be trusted by builds when pulling images from an image registry.

Red Hat OpenShift Service on AWS (ROSA) with hosted control planes (HCP) only deploys load balancers from the default ingress controller. All other load balancers can be optionally deployed by a customer for secondary ingress controllers or Service load balancers.

Project administrators can add route annotations for many different purposes, including ingress control through IP allow-listing.

ingress policies can also be changed by using NetworkPolicy objects, which leverage the ovs-networkpolicy plugin. This allows for full control over the ingress network policy down to the pod level, including between pods on the same cluster and even in the same namespace.

All cluster ingress traffic will go through the defined load balancers. Direct access to all nodes is blocked by cloud configuration.

Pod egress traffic control through EgressNetworkPolicy objects can be used to prevent or limit outbound traffic in Red Hat OpenShift Service on AWS (ROSA) with hosted control planes (HCP).

Red Hat OpenShift Service on AWS allows for the configuration of a private network connection through AWS-managed technologies, such as:

For Red Hat OpenShift Service on AWS clusters that have a private cloud network configuration, a customer can specify internal DNS servers available on that private connection, that should be queried for explicitly provided domains.

Network verification checks run automatically when you deploy a Red Hat OpenShift Service on AWS cluster into an existing Virtual Private Cloud (VPC) or create an additional machine pool with a subnet that is new to your cluster. The checks validate your network configuration and highlight errors, enabling you to resolve configuration issues prior to deployment.

You can also run the network verification checks manually to validate the configuration for an existing cluster. :!rosa-with-hcp:

Worker nodes use encrypted-at-rest Amazon Elastic Block Store (Amazon EBS) storage.

EBS volumes that are used for PVs are encrypted-at-rest by default.

Persistent volumes (PVs) are backed by Amazon Elastic Block Store (Amazon EBS), which is Read-Write-Once.

PVs can be attached only to a single node at a time and are specific to the availability zone in which they were provisioned. However, PVs can be attached to any node in the availability zone.

Each cloud provider has its own limits for how many PVs can be attached to a single node. See AWS instance type limits for details.

The AWS CSI Driver can be used to provide RWX support for Red Hat OpenShift Service on AWS (ROSA) with hosted control planes (HCP). A community Operator is provided to simplify setup. See Amazon Elastic File Storage Setup for OpenShift Dedicated and Red Hat OpenShift Service on AWS for details.

Node autoscaling is available on Red Hat OpenShift Service on AWS (ROSA) with hosted control planes (HCP). You can configure the autoscaler option to automatically scale the number of machines in a cluster.

Customers can create and run daemonsets on Red Hat OpenShift Service on AWS (ROSA) with hosted control planes (HCP).

Control plane components are always deployed across multiple availability zones, regardless of a customer’s worker node configuration.

Custom node labels are created by Red Hat during node creation and cannot be changed on Red Hat OpenShift Service on AWS (ROSA) with hosted control planes (HCP) clusters at this time. However, custom labels are supported when creating new machine pools.

Application and application data backups are not a part of the Red Hat OpenShift Service on AWS (ROSA) with hosted control planes (HCP) service.

Red Hat OpenShift Service on AWS (ROSA) with hosted control planes (HCP) is run as a service and is kept up to date with the latest OpenShift Container Platform version. Upgrade scheduling to the latest version is available.

Upgrades can be scheduled using the ROSA CLI, rosa, or through OpenShift Cluster Manager.

See the Red Hat OpenShift Service on AWS Life Cycle for more information on the upgrade policy and procedures.

Red Hat OpenShift support for Windows Containers is not available on Red Hat OpenShift Service on AWS at this time.

Red Hat OpenShift Service on AWS (ROSA) with hosted control planes (HCP) runs on OpenShift 4 and uses CRI-O as the only available container engine.

Red Hat OpenShift Service on AWS (ROSA) with hosted control planes (HCP) runs on OpenShift 4 and uses Red Hat CoreOS as the operating system for all control plane and worker nodes.

Red Hat workloads typically refer to Red Hat-provided Operators made available through Operator Hub. Red Hat workloads are not managed by the Red Hat SRE team, and must be deployed on worker nodes. These Operators may require additional Red Hat subscriptions, and may incur additional cloud infrastructure costs. Examples of these Red Hat-provided Operators are:

All Operators listed in the OperatorHub marketplace should be available for installation. These Operators are considered customer workloads, and are not monitored by Red Hat SRE.

Authentication for the cluster can be configured using either OpenShift Cluster Manager or cluster creation process or using the ROSA CLI, rosa. ROSA is not an identity provider, and all access to the cluster must be managed by the customer as part of their integrated solution. The use of multiple identity providers provisioned at the same time is supported. The following identity providers are supported:

Privileged containers are available for users with the cluster-admin role. Usage of privileged containers as cluster-admin is subject to the responsibilities and exclusion notes in the Red Hat Enterprise Agreement Appendix 4 (Online Subscription Services).

In addition to normal users, Red Hat OpenShift Service on AWS (ROSA) with hosted control planes (HCP) provides access to an ROSA with HCP-specific group called dedicated-admin. Any users on the cluster that are members of the dedicated-admin group:

The administrator of Red Hat OpenShift Service on AWS (ROSA) with hosted control planes (HCP) has default access to the cluster-admin role for your organization’s cluster. While logged into an account with the cluster-admin role, users have increased permissions to run privileged security contexts.

By default, all users have the ability to create, update, and delete their projects. This can be restricted if a member of the dedicated-admin group removes the self-provisioner role from authenticated users:

Restrictions can be reverted by applying:

See the Compliance table in Understanding process and security for ROSA for the latest compliance information.

With Red Hat OpenShift Service on AWS, AWS provides a standard DDoS protection on all load balancers, called AWS Shield. This provides 95% protection against most commonly used level 3 and 4 attacks on all the public facing load balancers used for Red Hat OpenShift Service on AWS. A 10-second timeout is added for HTTP requests coming to the haproxy router to receive a response or the connection is closed to provide additional protection.

In Red Hat OpenShift Service on AWS (ROSA) with hosted control planes (HCP), the control plane storage is encrypted at rest by default and this includes encryption of the etcd volumes. This storage-level encryption is provided through the storage layer of the cloud provider.

The etcd database is always encrypted by default. Customers might opt to provide their own custom AWS KMS keys for the purpose of encrypting the etcd database.

Etcd encryption will encrypt the following Kubernetes API server and OpenShift API server resources: