New Features and Enhancements

• Specification of pod and container security context for the experiment resources via chaosexperiment spec
• Introduces pod scheduling policy support via NodeSelector specification on the chaosengine (instance-specific attribute)
• Ability to override experiment images from the chaosengine
• Pushes an experiment execution summary event on the chaosresult resource
• Adds the network chaos experiment to induce packet duplication
• Adds node chaos experiment to force pod evictions via taints
• Adds service chaos experiment to kill docker service on the node
• Extends the golang chaoslib support for all existing chaos experiments in the generic suite
• Validation webhook enhancements to verify if application labels specified in the chaosengine are propagated to pod templates of the applications under test (AUT)
• Additional examples to illustrate litmus chaos-workflows using nginx benchmark using apache benchmark tool with parallel pod-kills
• Migrates the ansible-based chaos experiments to the litmus-ansible repo from litmuschaos/litmus in line with the litmus-go, litmus-python repo structure
• Improves the unit-test based coverage for chaos operator by 30%
• Extends the capability trigger on-demand e2e runs for PRs via GitHub comments to chaos operator
• Adds framework to determine e2e coverage percentage based on comparison of executed tests in the pipeline versus test plan
• Introduces an e2e portal to view e2e pipeline data and coverage
• Improves the Travis-based CI pipeline of the test-tools repo to build images only if respective Dockerfile or scripts are modified instead of building all images irrespective the nature of the commit.
• Increases sources for (helm-based) litmus installation to include helm hub & jfrog chartcenter artifact repositories
• Adds betterci integration to charthub to obtain UI/UX previews for PRs
• Enhances individual experiment documentation with abort procedure & troubleshooting references
• Enhances the experiment failure and uninstall troubleshooting sections to include more conditions
• Includes steps to run chaos experiments on rancher platform
• Includes missing video links/examples for chaos experiments in the generic suite
• Updates all the litmuschaos websites (docs, charthub, project website) based on CNCF guidelines
• Enhances the release guidelines doc with an enhanced release checklist

Major Bug Fixes

• Fixes invalid Jinja template for chaos injection (helper) pod in the kubelet-service-kill experiment
• Specifies an upper limit for the memory hog experiment docs based on the current resource exhaustion approach via dd
• Adds instructions in infra (node) chaos experiments to cordon the AUT before the execution of chaos to prevent the restart of litmus pods
• Fixes a race condition in the pod-delete experiment where the verdict is flagged as fail despite successful execution
• Fixes Kafka experiment failure while trying to derive leader broker for the test topic (partition) due to missing ns and improper regex
• Fixes coredns experiment regression (caused due to introduction of helper pods logic for the pod-delete experiment) due to missing
  lib_image in experiment CR

Installation

kubectl apply -f https://litmuschaos.github.io/litmus/litmus-operator-v1.6.0.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