A declarative framework for resilient Kubernetes deployment.
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Ruslan Aliev 12f448963f ETCD improvements
* remove healthcheck sidecar, perform probes in etcd
   container itself, failing liveness probes in sidecar
   do not restart problematic etcd container;
 * verify that etcdctl member list cmd in anchor is
   always successfull;
 * adjust ETCDCTL_ENDPOINTS env in etcd container to
   POD_IP variable instead of localhost (127.0.0.1);
 * add liveness/readiness probes to auxiliary etcd as
   well as properly passing etcd configuration variables
   as strings;
 * monitor current leader in initial etcd cluster, in case
   if aux member is current leader pass it to permenant
   member, same check applies for aux suicide process;
 * etcd aux pod will be alive unless all permanent nodes
   come up and join the cluster plus apiserver no longer
   relies on aux members;
 * add 5 seconds sleep between aux member remove for more
   smooth transition process.

Signed-off-by: Ruslan Aliev <raliev@mirantis.com>
Change-Id: I7918072a6ba5a6b22b359d1616def8c31425462d
2024-04-25 01:01:06 -05:00
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README.md

Promenade

Promenade is a tool for bootstrapping a resilient Kubernetes cluster and managing its life-cycle via Helm charts.

Documentation can be found here.

Roadmap

The detailed Roadmap can be viewed on the OpenStack StoryBoard.

  • Cluster bootstrapping
    • Initial Genesis process results in a single node Kubernetes cluster with Under-cloud components deployed using Armada.
    • Joining sufficient master nodes results in a resilient Kubernetes cluster.
    • Destroy Genesis node after bootstrapping and re-provision as a normal node to ensure consistency.
  • Life-cycle management
    • Decommissioning of nodes.
    • Updating Kubernetes version.

Getting Started

To get started, see getting started.

Configuration is documented here.

Bugs

Bugs are tracked in OpenStack StoryBoard.