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Inspect kind docker network and warn for big MTU. #27

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Inspect kind docker network and warn for big MTU. #27

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351cb54
Inspect kind docker network and warn for big MTU.
garloff Nov 28, 2025
4f410c6
Fix typo in 01-kind-cluster.sh
garloff Nov 28, 2025
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7 changes: 7 additions & 0 deletions 01-kind-cluster.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -20,3 +20,10 @@ else
echo "kind cluster already running"
fi
kubectl cluster-info
KINDMTU=$(docker network inspect kind | jq -r '.[] | .Options."com.docker.network.driver.mtu"')
if test $KINDMTU -gt $DOCKERMTU; then
echo -e "\e[0;31mWARNING: Found kind MTU $KINDMTU > docker0 $DOCKERMTU\e[0;0m"
echo " Consider setting { \"mtu\": $((8*($CLOUDMTU/8))) } in /etc/docker/daemon.json"
echo " and restart docker and do docker network rm kind ..."
echo "If you see ImagePullBackOff and ImagePullErrors, you now know why."
fi