New Features and Enhancements

• Introduces admin mode of chaos execution by which all chaos resources can be maintained in a single namespace while injecting chaos on applications across multiple namespaces
• Introduces helm charts for litmus infrastructure components and chaos charts
• Supports download of versioned chaos chart bundles on the chaoshub
• Supports custom/user-specified annotation filters to determine application chaos candidates
• Makes the chaos exporter a cluster-wide component deployed alongside the operator to extract metrics for all chaosengines
• Adds increased Kubernetes events to track failures (ex: inability to create chaos resources, access/patch chaosengine etc.,)
• Adds ability to re-trigger experiments for completed chaosengines via a patch operation
• Adds OpenEBS NFS provisioner failure experiment with external liveness checks to verify provisioner functionality & data persistence
• Introduces the Cassandra chaos chart with cassandra node failure experiment along with external liveness checks to perform database CRUD operations during chaos
• Adds pod level memory hog experiment with provision for users to provide memory to consume (in MB)
• Enhances the chaostoolkit based pod delete experiment to use python modules with added support for a json (blob) result artifact and different failure modes (i.e., single/multi pod failure)
• Enhances the node cpu hog experiment to accept cpu core count as a user input
• Enhances the container kill experiment to repeat chaos actions over a total chaos duration instead of being a single-action test
• Restructures the chaoslib to categorize chaos injection functions/taskfiles under respective tool-based lib
• Improves the experiment logs (task banners) based on the category/function performed by the tasks
• Adds (aquasecurity) trivy based static security scans for all litmus component images as part of respective CI builds
• Includes lint-checks with custom/project-specific rules for ansible playbooks in litmus CI build
• Improves the litmus e2e pipelines with addition of new tests around admin mode, multiple parallel chaosengine execution across namespaces, validation for engine status patch
• Improves e2e infra (scripts) to be able to launch e2e pipelines with custom image versions
• Adds pipeline history information in the litmus-e2e repo to track experiment status
• Introduces a new repo to hold charts and experiment icons linked to respective CSVs on the chaoshub.
• Adds documentation to explain the plugin model in litmus and integration with other chaos tools
• Adds a new artifact in the litmus repository called releases to track salient resource schema changes and provide references to detailed release notes

Major Bug Fixes

• Fixes the incorrect experiment status on chaosengine (“Awaited”) despite completion of experiment
• Fixes failure to schedule auxiliary/helper pods with nodeSelector specification on EKS clusters
• Fixes ambiguity/missing steps in developer guide and updates experiment artefacts templates with latest changes (since v1.0)
• Fixes the event source names in case of events generated by chaos-runners to bear chaos-runner pod name
• Fixes the failure to verify successful app reschedule post drain operation in node-drain experiment
• Fixes the crash of powerfulseal deployment due to use of improper service account

Getting Started

Prerequisites to install

• Make sure you have a healthy Kubernetes Cluster.
• Kubernetes 1.11+ is installed

Installation

kubectl apply -f https://litmuschaos.github.io/litmus/litmus-operator-v1.3.0.yaml

Verify your installation

• Verify if the chaos operator is running
  kubectl get pods -n litmus

• Verify if chaos CRDs are installed
  kubectl get crds | grep chaos

For more details refer to the documentation at Docs