[ERROR] scenario: scenarios/pvc_scenario.yaml failed with exception: <class 'UnboundLocalError'> file: /root/kraken/kraken/pvc/pvc_scenario.py line: 141

[mallilinux1980]

scenarios/pvc_scenario.yaml failed with exception: <class 'UnboundLocalError'>

podman run -it --rm --name=disk --net=host --env-host=true -v $KUBECONFIG:/root/.kube/config -v $SCENARIO:/root/kraken/scenarios/pvc_scenario.yaml -d krkn-hub:pvc-scenarios

2024-07-17 02:25:10,381 [INFO] Starting kraken
2024-07-17 02:25:10,390 [INFO] Initializing client to talk to the Kubernetes cluster
2024-07-17 02:25:10,390 [INFO] Generated a uuid for the run: 232d86a6-04ad-4d5e-b5de-8187b0f8a239
2024-07-17 02:25:20,834 [INFO] Fetching cluster info
2024-07-17 02:25:22,498 [INFO] Cluster version is 4.12.32
2024-07-17 02:25:22,498 [INFO] Server URL: https://<abc.com>:6443
2024-07-17 02:25:22,499 [INFO] Daemon mode not enabled, will run through 1 iterations

2024-07-17 02:25:22,499 [INFO] Executing scenarios for iteration 0
2024-07-17 02:25:22,499 [INFO] Running PVC scenario
2024-07-17 02:25:22,501 [INFO] Input params:
pvc_name: ''
pod_name: 'virt-launcher-rodan-223249-137'
namespace: 'virtualmachines'
target_fill_percentage: '75%'
duration: '60s'
2024-07-17 02:25:43,240 [INFO] Volume name: os-disk
2024-07-17 02:25:43,241 [INFO] PVC name: rodan-223249-137-os
2024-07-17 02:25:43,241 [ERROR] scenario: scenarios/pvc_scenario.yaml failed with exception: <class 'UnboundLocalError'> file: /root/kraken/kraken/pvc/pvc_scenario.py line: 141

$ cat scenarios/pvc_scenario.yaml
pvc_scenario:
pvc_name:
pod_name: virt-launcher-rodan-223249-137
namespace: virtualmachines
fill_percentage: 75
duration: 60

[mallilinux1980]

anyway to get it fixed?

[tsebastiani]

Hi @mallilinux1980, sorry for the late response. I'm afraid that you're not running the scenario as suggested in the documentation, infact you're trying to mount the yaml config file as a volume instead of exposing the requested parameters as environment variables.
I've just tested the scenario with this syntax:
podman run --name=pvc --net=host --env-host=true -v $(pwd)/kubeconfig:/home/krkn/.kube/config:Z -e POD_NAME=elasticsearch-master-0 -e NAMESPACE=default -e FILL_PERCENTAGE=65 -e DURATION=60 quay.io/krkn-chaos/krkn-hub:pvc-scenarios and works perfectly fine!

Please let us know if you have further questions or issues running krkn-hub scenario, you can also reach out directly on slack https://kubernetes.slack.com, #krkn channel.

[mallilinux1980]

re-tried but same error.
$ podman run --name=disk --net=host --env-host=true -v /tmp/.kube/kubeconfig-42:/home/krkn/.kube/config -e POD_NAME=virt-launcher-d12472-064 -e NAMESPACE=virtualmachines -e FILL_PERCENTAGE=65 -e DURATION=60 quay.io/krkn-chaos/krkn-hub:pvc-scenarios

• source /home/krkn/main_env.sh
  ++ export CERBERUS_ENABLED=False
  ++ CERBERUS_ENABLED=False
  ++ export CERBERUS_URL=http://0.0.0.0:8080
  ++ CERBERUS_URL=http://0.0.0.0:8080
  ++ export DISTRIBUTION=openshift
  ++ DISTRIBUTION=openshift
  ++ export KRKN_KUBE_CONFIG=/home/krkn/.kube/config
  ++ KRKN_KUBE_CONFIG=/home/krkn/.kube/config
  ++ export WAIT_DURATION=60
  ++ WAIT_DURATION=60
  ++ export ITERATIONS=1
  ++ ITERATIONS=1
  ++ export DAEMON_MODE=False
  ++ DAEMON_MODE=False
  ++ export RETRY_WAIT=120
  ++ RETRY_WAIT=120
  ++ export PUBLISH_KRAKEN_STATUS=False
  ++ PUBLISH_KRAKEN_STATUS=False
  ++ export SIGNAL_ADDRESS=0.0.0.0
  ++ SIGNAL_ADDRESS=0.0.0.0
  ++ export PORT=8081
  ++ PORT=8081
  ++ export SIGNAL_STATE=RUN
  ++ SIGNAL_STATE=RUN
  ++ export DEPLOY_DASHBOARDS=False
  ++ DEPLOY_DASHBOARDS=False
  ++ export CAPTURE_METRICS=False
  ++ CAPTURE_METRICS=False
  ++ export ENABLE_ALERTS=False
  ++ ENABLE_ALERTS=False
  ++ export ALERTS_PATH=config/alerts.yaml
  ++ ALERTS_PATH=config/alerts.yaml
  ++ export ES_SERVER=http://0.0.0.0:9200
  ++ ES_SERVER=http://0.0.0.0:9200
  ++ export CHECK_CRITICAL_ALERTS=False
  ++ CHECK_CRITICAL_ALERTS=False
  ++ export KUBE_BURNER_URL=https://github.com/cloud-bulldozer/kube-burner/releases/download/v1.7.0/kube-burner-1.7.0-Linux-x86_64.tar.gz
  ++ KUBE_BURNER_URL=https://github.com/cloud-bulldozer/kube-burner/releases/download/v1.7.0/kube-burner-1.7.0-Linux-x86_64.tar.gz
  ++ export TELEMETRY_ENABLED=False
  ++ TELEMETRY_ENABLED=False
  ++ export TELEMETRY_API_URL=https://ulnmf9xv7j.execute-api.us-west-2.amazonaws.com/production
  ++ TELEMETRY_API_URL=https://ulnmf9xv7j.execute-api.us-west-2.amazonaws.com/production
  ++ export TELEMETRY_USERNAME=redhat-chaos
  ++ TELEMETRY_USERNAME=redhat-chaos
  ++ export TELEMETRY_PASSWORD=
  ++ TELEMETRY_PASSWORD=
  ++ export TELEMETRY_PROMETHEUS_BACKUP=True
  ++ TELEMETRY_PROMETHEUS_BACKUP=True
  ++ export TELEMTRY_FULL_PROMETHEUS_BACKUP=False
  ++ TELEMTRY_FULL_PROMETHEUS_BACKUP=False
  ++ export TELEMETRY_BACKUP_THREADS=5
  ++ TELEMETRY_BACKUP_THREADS=5
  ++ export TELEMETRY_ARCHIVE_PATH=/tmp
  ++ TELEMETRY_ARCHIVE_PATH=/tmp
  ++ export TELEMETRY_MAX_RETRIES=0
  ++ TELEMETRY_MAX_RETRIES=0
  ++ export TELEMETRY_RUN_TAG=chaos
  ++ TELEMETRY_RUN_TAG=chaos
  ++ export TELEMETRY_GROUP=default
  ++ TELEMETRY_GROUP=default
  ++ export TELEMETRY_ARCHIVE_SIZE=1000
  ++ TELEMETRY_ARCHIVE_SIZE=1000
  ++ export TELEMETRY_LOGS_BACKUP=False
  ++ TELEMETRY_LOGS_BACKUP=False
  ++ export 'TELEMETRY_FILTER_PATTERN=["(\w{3}\s\d{1,2}\s\d{2}:\d{2}:\d{2}\.\d+).+","kinit (\d+/\d+/\d+\s\d{2}:\d{2}:\d{2})\s+","(\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d+Z).+"]'
  ++ TELEMETRY_FILTER_PATTERN='["(\w{3}\s\d{1,2}\s\d{2}:\d{2}:\d{2}\.\d+).+","kinit (\d+/\d+/\d+\s\d{2}:\d{2}:\d{2})\s+","(\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d+Z).+"]'
  ++ export TELEMETRY_CLI_PATH=
  ++ TELEMETRY_CLI_PATH=
  ++ export TELEMETRY_EVENTS_BACKUP=True
  ++ TELEMETRY_EVENTS_BACKUP=True
  ++ export ELASTIC_SERVER=
  ++ ELASTIC_SERVER=
  ++ export ELASTIC_INDEX=
  ++ ELASTIC_INDEX=
  ++ export KUBECONFIG=/home/krkn/.kube/config
  ++ KUBECONFIG=/home/krkn/.kube/config
• source /home/krkn/env.sh
  ++ export PVC_NAME=
  ++ PVC_NAME=
  ++ export POD_NAME=virt-launcher-d12472-064
  ++ POD_NAME=virt-launcher-d12472-064
  ++ export NAMESPACE=virtualmachines
  ++ NAMESPACE=virtualmachines
  ++ export FILL_PERCENTAGE=65
  ++ FILL_PERCENTAGE=65
  ++ export DURATION=60
  ++ DURATION=60
  ++ export SCENARIO_TYPE=pvc_scenarios
  ++ SCENARIO_TYPE=pvc_scenarios
  ++ export SCENARIO_FILE=scenarios/pvc_scenario.yaml
  ++ SCENARIO_FILE=scenarios/pvc_scenario.yaml
• ls -la /home/krkn/.kube
  total 8
  drwxr-xr-x. 2 krkn krkn 20 Jul 29 08:39 .
  drwxr-xr-x. 4 krkn krkn 20 Jul 23 10:35 ..
  -r--r--r--. 1 root root 4266 Jun 28 03:10 config
• source /home/krkn/common_run.sh
• checks
• check_oc
• log 'Checking if OpenShift client is installed'
  ++ date +%d-%m-%YT%H:%M:%S
  29-07-2024T08:39:53 Checking if OpenShift client is installed
• echo -e '\033[1m29-07-2024T08:39:53 Checking if OpenShift client is installed\033[0m'
• which oc
• alias
• eval declare -f
  ++ declare -f
• /usr/bin/which --tty-only --read-alias --read-functions --show-tilde --show-dot oc
  /bin/oc
• check_kubectl
• log 'Checking if kubernetes client is installed'
  ++ date +%d-%m-%YT%H:%M:%S
  29-07-2024T08:39:53 Checking if kubernetes client is installed
• echo -e '\033[1m29-07-2024T08:39:53 Checking if kubernetes client is installed\033[0m'
• which kubectl
• alias
• eval declare -f
  ++ declare -f
• /usr/bin/which --tty-only --read-alias --read-functions --show-tilde --show-dot kubectl
  /bin/kubectl
• check_cluster_version
• kubectl version
  Client Version: v1.30.3
  Kustomize Version: v5.0.4-0.20230601165947-6ce0bf390ce3
  Server Version: v1.25.12+26bab08
  WARNING: version difference between client (1.30) and server (1.25) exceeds the supported minor version skew of +/-1
• kubectl get clusterversion
  NAME VERSION AVAILABLE PROGRESSING SINCE STATUS
  version 4.12.32 True False 118d Cluster version is 4.12.32
• set_kubernetes_platform
• kubectl get clusterversion
  NAME VERSION AVAILABLE PROGRESSING SINCE STATUS
  version 4.12.32 True False 118d Cluster version is 4.12.32
• config_setup
• envsubst
• envsubst
• envsubst
• cd /home/krkn/kraken
• python3.9 run_kraken.py --config config/config.yaml
  2024-07-29 08:40:03,395 [INFO] Starting kraken
  2024-07-29 08:40:03,405 [INFO] Initializing client to talk to the Kubernetes cluster
  2024-07-29 08:40:03,405 [INFO] Generated a uuid for the run: 34e63afe-163a-4b78-90de-9761a23a7f98
  2024-07-29 08:40:22,105 [INFO] Fetching cluster info
  2024-07-29 08:40:23,823 [INFO] Cluster version is 4.12.32
  2024-07-29 08:40:23,824 [INFO] Server URL: https://xyz:6443
  2024-07-29 08:40:23,824 [INFO] Daemon mode not enabled, will run through 1 iterations

2024-07-29 08:40:23,824 [INFO] Executing scenarios for iteration 0
2024-07-29 08:40:23,824 [INFO] Running PVC scenario
2024-07-29 08:40:23,827 [INFO] Input params:
pvc_name: ''
pod_name: 'virt-launcher-d12472-064'
namespace: 'virtualmachines'
target_fill_percentage: '65%'
duration: '60s'
2024-07-29 08:40:45,544 [INFO] Volume name: os-disk
2024-07-29 08:40:45,544 [INFO] PVC name: d12472-064-os
2024-07-29 08:40:45,544 [ERROR] scenario: scenarios/pvc_scenario.yaml failed with exception: <class 'UnboundLocalError'> file: /home/krkn/kraken/kraken/pvc/pvc_scenario.py line: 141

[tsebastiani]

did you try to clear your local image cache (just in case)?

[mallilinux1980]

yes but no luck.