Sinece #222 the istio-configuration/configure-istio.sh, quickstart/expose-keptn.sh and quickstart/multistage-delivery.sh use jq to parse JSON output of the kubectl version -ojson command.

This works well if the person executing the file already has jq installed but fails with the following error otherwise:

bash: line 76: jq: command not found

To make the script run the use has to install jq but there might be better solutions to solve this so the user doesn't need to take any extra steps. For example we could replace:

K8S_VERSION_MINOR=$(echo "$K8S_VERSION" | jq -r .serverVersion.minor)

with:

K8S_VERSION_MINOR=$(echo "$K8S_VERSION" | python -c "import sys, json; print(json.load(sys.stdin)['serverVersion']['minor'])")

which would now only require python to run (preinstalled on most systems).