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These release notes provide a high-level overview of Kong Enterprise 2.1.x, which includes the 188.8.131.52 (beta) release. For detailed information about 2.1.x, 184.108.40.206 (beta), and any subsequent 2.1.x patch releases, see the Changelog.
Kong Enterprise now supports a new deployment method called Hybrid mode, also known as Control Plane / Data Plane Separation (CP/DP).
In this mode, Kong nodes in a cluster are split into two roles: Control Plane (CP), which centrally manages Kong Enterprise cluster configuration, and Data Plane (DP), which serves traffic for the proxy. Each DP node is connected to one of the CP nodes. Instead of accessing the database contents directly as in the traditional deployment method, the DP nodes maintain connection with CP nodes, and receive the latest configuration. All nodes in a cluster are configured with generated certificates, ensuring each Data Plane node is calling back to securely pair with the Control Plane.
You can manage Kong Enterprise add-ons including Kong Manager, Developer Portal, Vitals, Immunity, and Brain from a single Control Plane that spans multiple clusters across different data centers and platforms. This means that you can distribute Kong Enterprise instances in Data Plane mode over any of Kong’s supported environments, while still connecting back to the Control Plane.
Here’s a sample configuration with one central Control Plane and three Data Plane nodes, as well as Kong Manager and Developer Portal enabled on the Control Plane:
For more information, check out the following links:
Developer Portal Application Registration with External IDP Support
Authentication is decoupled from the Application Registration plugin, and support is added for third-party OAuth providers. Developers now have the flexibility to choose from either Kong or a third-party identity provider (IdP) as the system of record for application credentials. With third-party OAuth support, developers can centralize application credential management with the supported IdP of their choice.
For more information, see:
Developer Portal Markdown Support
The Developer Portal now supports GitHub Markdown as an alternative to Developer Portal templates. To use the feature, create a markdown file and call the new markdown layout module. You can use the default CSS or customize it for more control over the Dev Portal skin.
For more information, see the Developer Portal Markdown topic.
Go Language Support for Custom Plugins
The Go Plugin Development Kit for Kong Enterprise allows users to tap into the Go ecosystem with custom plugins. The Kong Go PDK directly parallels the existing Kong PDK for Lua plugins.
For more information, see the Go PDK topic.
Kong Vitals Reports
A new interface in Kong Manager lets you view usage dashboards and generate reports, with easier access to all metrics collected by Kong Vitals over a greater period of time. Use the reports feature to browse, filter, and view your metrics in a time-series generated report, and export the report as a comma-separated values (CSV) file.
For more information, see the Vitals Overview and Vitals Reports topics.
Kong for Kubernetes Enterprise (K4K8s) Image Changes
For the Kong Enterprise, Kong for Kubernetes Enterprise (K4K8s) now uses the
kong-enterprise-edition image, which works as a drop-in replacement for the
kong-enterprise-k8s image used in earlier versions.
For more information, including instructions for switching images, see Kong for Kubernetes Deployment Options.
Known Issues and Workarounds
LDAP Authentication and LDAP Authentication Advanced plugins: When using only RBAC Token authorization, Service Directory Mapping to Kong Roles does not take effect. If you need to use CLI access with your Service Directory mapping, use the same authentication mechanism that Kong Manager uses to secure browser sessions, as defined in this workaround: Using Service Directory Mapping on the CLI.
The Rate Limiting Advanced plugin does not support the
cluster strategy in hybrid mode. The
redis strategy must be used instead.
Setting your Kong password (
Kong_Password) using a value containing four ticks (for example,
KONG_PASSWORD="a''a'a'a'a") causes a Postgres syntax error on bootstrap. To work around this issue, do not use special characters in your password.
Kong Brain is deprecated and not available for use in Kong Enterprise version 220.127.116.11 and later.
For a complete list of features, fixes, and changes, see the Kong Enterprise Changelog for versions 2.1.x and 18.104.22.168 (beta).