Kublr Demo/Installer Release 1.12.0 (2019-05-16)

This release has a known critical issue, use Kublr 1.21.2 or later instead

Due to docker image gcr.io/kubernetes-helm/tiller:v2.14.3 discontinued in the Google Image repository in August 2021, ( related issue: “Make Tiller Image Available on Docker Hub” ), Kublr may fail to complete cluster create and update.

The cluster hangs in “Creating” or “Updating” state indefinitely or for a very long time, or goes to “Error” state, in all cases with Tiller pod unhealthy due to Tiller image not available.

All versions of Kublr before 1.21.2 (including this one), and Kublr Agent versions earlier than the ones included in Kublr 1.21.2 are affected.

The issue and available solutions are described in the troubleshooting guide on Kublr support portal.

Migration to the latest Kublr Agents and Kublr Control Plane versions or at least Kublr 1.21.2 is recommended.

Quick Start

sudo docker run --name kublr -d --restart=unless-stopped -p 9080:9080 kublr/kublr:1.12.0

Kublr Demo/Installer is a lightweight tool for running a limited-functionality Kublr Platform inside a Docker container and installing a full Kublr Control Plane. It can be used to:

• Test setup and management of a standalone Kubernetes cluster
• Setup a full-featured Kublr Platform

Kublr Demo/Installer stores all the data about the created clusters inside the Docker container. If you delete the Docker container you will lose all data about the created clusters and Kublr platforms. You will not lose the cluster and platform itself. The Kublr team recommends using Kublr Demo/Installer to check that a Kubernetes cluster can be created in your environment and to experiment. We also recommend creating a full-featured and durable Kublr Platform, in any cloud or on-premise, with the full power Kublr platform to manage your Kubernetes clusters.

Overview

This major release brings VMware vSphere and VMware VCloud Director support. This release supports Kubernetes 1.12.8 and many improvements for all existing features. We introduced several new features (technical preview): Kublr CLI and SElinux support. We refreshed the UI design and made improvements, paying attention to improved security.

Changelog

1. Kubernetes 1.12.8
2. VMware vSphere support
3. VMware VCloud Director support
4. Kublr CLI (technical preview)
5. OS support:
   • Ubuntu 18.04 support
   • Enabled running Kublr nodes on tiny instances
   • Linux Kernel version check
   • Check and report disk space during Kublr setup
6. Security:
   • ABAC disabled by default
   • SElinux support (technical preview)
7. User interface:
   • New option to completely delete a cluster from db
   • Support DNS configuration
   • Allow user to override /var/lib/kublr for onPrem installations
   • Design update
   • Angular 7
8. AirGap:
   • Introduced new secret “docker registry” so you can define your own docker registry through the UI
9. OnPrem:
   • Support sudo-less installation
   • Storage class for OnPrem installations
   • Allow to override etcd data directory
10. Centralized monitoring:
    • Enhanced etcd monitoring
    • Support metric-server
    • Monitoring for kube-controller-manager and kube-scheduler
11. GCP:
    • Support nodes without public IP
    • Support creating cluster in existing VPC
12. Azure:
    • User can specify disk size
    • Allow to enabled/disable Public LB for masters
    • Support standard Azure storageAccountType
    • Add ability to define Routes and Peering in Azure in cluster spec
13. AWS:
    • User can create a cluster with Termination protection
    • User can change boot disk size
    • Support for Existing VPC

Known Issues

1. For RedHat detected unstable work of flannel and calico CNI plugins, which does not affect the standard installation

2. Broken layout for Ingress on IE 11

3. (Critical) Due to docker image gcr.io/kubernetes-helm/tiller:v2.14.3 discontinued in the Google Image repository in August 2021, ( related issue: “Make Tiller Image Available on Docker Hub” ), Kublr may fail to complete cluster create and update.

   The cluster hangs in “Creating” or “Updating” state indefinitely or for a very long time, or goes to “Error” state, in all cases with Tiller pod unhealthy due to Tiller image not available.

   All versions of Kublr before 1.21.2 (including this one), and Kublr Agent versions earlier than the ones included in Kublr 1.21.2 are affected.

   The issue and available solutions are described in the troubleshooting guide on Kublr support portal.

   Migration to the latest Kublr Agents and Kublr Control Plane versions or at least Kublr 1.21.2 is recommended.

Components versions

Kubernetes

Kublr Control Plane

Kublr Platform Features