Requirements and limitations

This section provides information about the system requirements and limitations for deploying and running Oracle SOA Suite domains with the WebLogic Kubernetes operator.

System requirements for Oracle SOA Suite domains

For the current production release 21.1.2:

  • Oracle Linux 7 (UL6+) and Red Hat Enterprise Linux 7 (UL3+ only with standalone Kubernetes) are supported.
  • Oracle Linux Cloud Native Environment (OLCNE) version 1.1.2 is supported.
  • Kubernetes 1.14.8+, 1.15.7+, 1.16.0+, 1.17.0+, and 1.18.0+ (check with kubectl version).
  • Docker 18.09.1ce, 19.03.1 (check with docker version) or CRI-O 1.14.7 (check with crictl version | grep RuntimeVersion).
  • Flannel networking v0.9.1-amd64 or later (check with docker images | grep flannel).
  • Helm 3.1.3+ (check with helm version --client --short).
  • Oracle WebLogic Kubernetes operator 3.1.1 (see operator releases page).
  • Oracle SOA Suite 12.2.1.4 Docker image downloaded from My Oracle Support (MOS patch 32398542). This image contains the latest bundle patch and one-off patches for Oracle SOA Suite.
  • You must have the cluster-admin role to install the operator. The operator does not need the cluster-admin role at runtime.
  • We do not currently support running SOA in non-Linux containers.
  • Additionally, see the Oracle SOA Suite documentation for other requirements such as database version.

See here for resourse sizing information for Oracle SOA Suite domains setup on Kubernetes cluster.

Limitations

Compared to running a WebLogic Server domain in Kubernetes using the operator, the following limitations currently exist for Oracle SOA Suite domains:

  • In this release, Oracle SOA Suite domains are supported using the domain on a persistent volume model only, where the domain home is located in a persistent volume (PV).
  • The “domain in image” and “model in image” models are not supported. Also, “WebLogic Deploy Tooling (WDT)” based deployments are currently not supported.
  • Only configured clusters are supported. Dynamic clusters are not supported for Oracle SOA Suite domains. Note that you can still use all of the scaling features, but you need to define the maximum size of your cluster at domain creation time. Mixed clusters (configured servers targeted to a dynamic cluster) are not supported.
  • The WebLogic Logging Exporter currently supports WebLogic Server logs only. Other logs will not be sent to Elasticsearch. Note, however, that you can use a sidecar with a log handling tool like Logstash or Fluentd to get logs.
  • The WebLogic Monitoring Exporter currently supports WebLogic MBean trees only. Support for JRF and Oracle SOA Suite MBeans is not available. Also, a metrics dashboard specific to Oracle SOA Suite is not available. Instead, use the WebLogic Server dashboard to monitor the Oracle SOA Suite server metrics in Grafana.
  • Some features such as multicast, multitenancy, production redeployment, and Node Manager (although it is used internally for the liveness probe and to start WebLogic Server instances) are not supported in this release.
  • Features such as Java Messaging Service whole server migration, consensus leasing, and maximum availability architecture (Oracle SOA Suite EDG setup) are not supported in this release.
  • Enabling or disabling the memory resiliency for Oracle Service Bus using the Enterprise Manager Console is not supported in this release.
  • Zero downtime upgrade (ZDT) of the domain is not supported.

For up-to-date information about the features of WebLogic Server that are supported in Kubernetes environments, see My Oracle Support Doc ID 2349228.1.