Add Projectsveltos

Alphabetically added to "Cluster Resources Management" section.

- [x] Opensource project
- [x] More than 50 stars

Describe Why This Is Awesome

Sveltos is an open source project for managing Kubernetes add-ons in tens of managed clusters. It automatically discovers ClusterAPI powered clusters and allows to register any other cluster (like GKE). Then, it seamlessly manages Kubernetes add-ons across all your clusters.

It currently has long list of features (and more are coming):

1. Kubernetes [add-on distribution](https://projectsveltos.github.io/sveltos/addons/) across multiple clusters. Add-ons can expressed as Helm charts, Kustomize files and YAMLs;
2. [Event driven framework](https://projectsveltos.github.io/sveltos/addon_event_deployment/) to deploy add-ons as response to events in managed clusters. Event can be defined in the form of Lua script. Add-ons can be expressed as template and instantiated using information from resources in the managed clusters;
3. Sveltos' event driven framework can also be configured for [cross-cluster configuration](https://projectsveltos.github.io/sveltos/addon_event_deployment/#cross-clusters);
4. [Configuration drift detection](https://projectsveltos.github.io/sveltos/configuration_drift/);
5. [Notification](https://projectsveltos.github.io/sveltos/notifications): Sveltos can be configured to send notifications (Kubernetes event and Slack, Webex messages) when for instance all add-ons are deployed in a cluster;
6. Addons can be represented as [templates](https://projectsveltos.github.io/sveltos/template/) and instantiated using values from management cluster resources. Sveltos can fetch any resource in the management cluster provided that the appropriate RBAC permissions are granted;
7. [Multi-tenancy](https://projectsveltos.github.io/sveltos/multi-tenancy/) allowing platform admin to easily grant permissions to tenant admins and have Sveltos enforces those;
8. [Dry run](https://projectsveltos.github.io/sveltos/configuration/#dryrun-mode) to preview effect of a change;
9. Kubernetes [cluster classification](https://projectsveltos.github.io/sveltos/labels_management/) and automatic label management based on cluster runtime states;
10. [Techsupport](https://projectsveltos.github.io/sveltos/techsupport/): collect tech support from managed clusters;
11. Configuration [snapshots, diff and rollback](https://projectsveltos.github.io/sveltos/snapshot/): freeze your policy configurations in time, compare changes between snapshots, and roll back or forward to any saved snapshot.

Full documentation can be found here: https://projectsveltos.github.io/sveltos/

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readme.md

@@ -112,6 +112,7 @@ Items with :green_heart: indicate open source projects.
 - :green_heart:[Liqo](https://github.com/liqotech/liqo) :fire::fire: - Liqo implements Dynamic resource sharing across different Kubernetes clusters (e.g.; offloading pods and services), supporting decentralized governance.
 - :green_heart:[Pluto](https://github.com/FairwindsOps/pluto) :fire::fire::fire::fire: - Pluto is a utility to help users find deprecated Kubernetes apiVersions in their code repositories and their helm releases.
 - :green_heart:[Polaris](https://github.com/FairwindsOps/polaris) :fire::fire::fire::fire::fire: - Polaris is an open source policy engine for Kubernetes that validates and remediates resource configuration.
+- :green_heart:[Projectsveltos](https://github.com/projectsveltos/addon-manager) :fire: Projectsveltos is a Kubernetes add-on controller that simplifies the deployment and management of add-ons and applications across multiple clusters.
 - :green_heart:[The Hierarchical Namespace Controller](https://github.com/kubernetes-sigs/multi-tenancy/tree/master/incubator/hnc) :fire::fire::fire: - Hierarchical namespaces make it easier to share your cluster by making namespaces more powerful.
 
 ### Secrets Management