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How can I delete manually calicoctl and iptables created by calico from my k3s setup

solveit

12/3/22, 4:42 AM

I have a K3s setup with calico pods [calico-node- & calico-kube-controllers-] running. On uninstalling K3s, calico pods get deleted but I see that calicoctl and iptables -S commands still running and shows data.

I want to delete calico (including calicoctl and Iptables created by calico) completely. Which commands will help me to do so ?

K3s uninstalltion command: /usr/local/bin/k3s-uninstall.sh deletes all k3s pods including calico, but calicoctl and iptables -S still works.

PS: I already tried few things -

Command kubectl delete -f https://raw.githubusercontent.com/aws/amazon-vpc-cni-k8s/release-1.5/config/v1.5/calico.yaml deletes the calico-node- but calico-kube-controller , calicoctl and iptables -S are still present
Kubectl delete commands in this que also not working for me, after executing these two commands still calicoctl and iptables -S are present

1519

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calico

k3s

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gaurav sinha

12/6/22, 7:45 AM

Deleting calico-Iptables:

Use calico-policy and add below lines at the end of script:

echo "Flush remaining calico iptables"
iptables-save | grep -i cali | iptables -F

echo "Delete remaining calico iptables"
iptables-save | grep -i cali | iptables -X

This will delete all calico iptables when you check with iptables -S

Note: Run this script only after uninstalling K3S.

Deleting calicoctl:

Simply run sudo rm $(which calicoctl) command, it will find and delete the calicoctl.

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Mikołaj Głodziak

12/3/22, 10:39 AM

Here you will find a dedicated script that will remove whole calico policy. Everything you need should be in the script.

Edit: completely guide you can find here

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solveit

12/3/22, 10:50 AM

Mikolaj-:: while running this script "sh remove-calico-policy.sh" the script goes in sleeping stage and didnt come out of that. the last line sleeping... it get stuck

solveit

12/3/22, 11:08 AM

Also calico-node-xxx pods and calicoctl still present after running this script

Mikołaj Głodziak

12/3/22, 11:37 AM

Where did you run this script? Note, that you need to run it on the node. This `sleep` at the end is fine, so DaemonSet doesn't die. It works as expected. I have edited the answer and send you completely guide to remove whole calico policy.

MrValdez

12/19/23, 2:06 AM

The link have changed to https://github.com/projectcalico/calico/blob/master/calico/hack/remove-calico-policy/remove-calico-policy.sh and https://github.com/projectcalico/calico/tree/master/calico/hack/remove-calico-policy; respectively.

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: How can I delete manually calicoctl and iptables created by calico from my k3s setup

TH: ฉันจะลบ calicoctl และ iptables ที่สร้างโดย calico ด้วยตนเองจากการตั้งค่า k3s ของฉันได้อย่างไร

RO: Cum pot șterge manual calicoctl și iptables create de calico din configurația mea k3s

RU: Как я могу вручную удалить calicoctl и iptables, созданные calico, из моей установки k3s

VI: Làm cách nào tôi có thể xóa thủ công calicoctl và iptables được tạo bởi calico khỏi thiết lập k3s của mình

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