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111
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1 #!/bin/sh
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2 [ $(id -u) -eq 0 ] || exec sudo $0 $@
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3
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4 for bin in /var/lib/rancher/k3s/data/**/bin/; do
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5 [ -d $bin ] && export PATH=$PATH:$bin:$bin/aux
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6 done
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7
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8 set -x
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9
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10 for service in /etc/systemd/system/k3s*.service; do
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11 [ -s $service ] && systemctl stop $(basename $service)
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12 done
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13
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14 for service in /etc/init.d/k3s*; do
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15 [ -x $service ] && $service stop
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16 done
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17
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18 pschildren() {
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19 ps -e -o ppid= -o pid= | \
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20 sed -e 's/^\s*//g; s/\s\s*/\t/g;' | \
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21 grep -w "^$1" | \
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22 cut -f2
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23 }
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24
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25 pstree() {
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26 for pid in $@; do
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27 echo $pid
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28 for child in $(pschildren $pid); do
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29 pstree $child
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30 done
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31 done
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32 }
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33
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34 killtree() {
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35 kill -9 $(
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36 { set +x; } 2>/dev/null;
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37 pstree $@;
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38 set -x;
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39 ) 2>/dev/null
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40 }
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41
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42 getshims() {
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43 ps -e -o pid= -o args= | sed -e 's/^ *//; s/\s\s*/\t/;' | grep -w 'k3s/data/[^/]*/bin/containerd-shim' | cut -f1
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44 }
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45
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46 killtree $({ set +x; } 2>/dev/null; getshims; set -x)
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47
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48 do_unmount_and_remove() {
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49 set +x
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50 while read -r _ path _; do
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51 case "$path" in $1*) echo "$path" ;; esac
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52 done < /proc/self/mounts | sort -r | xargs -r -t -n 1 sh -c 'umount "$0" && rm -rf "$0"'
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53 set -x
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54 }
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55
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56 do_unmount_and_remove '/run/k3s'
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57 do_unmount_and_remove '/var/lib/rancher/k3s'
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58 do_unmount_and_remove '/var/lib/kubelet/pods'
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59 do_unmount_and_remove '/var/lib/kubelet/plugins'
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60 do_unmount_and_remove '/run/netns/cni-'
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61
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62 # Remove CNI namespaces
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63 ip netns show 2>/dev/null | grep cni- | xargs -r -t -n 1 ip netns delete
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64
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65 # Delete network interface(s) that match 'master cni0'
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66 ip link show 2>/dev/null | grep 'master cni0' | while read ignore iface ignore; do
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67 iface=${iface%%@*}
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68 [ -z "$iface" ] || ip link delete $iface
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69 done
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70 ip link delete cni0
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71 ip link delete flannel.1
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72 ip link delete flannel-v6.1
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73 ip link delete kube-ipvs0
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74 rm -rf /var/lib/cni/
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75 iptables-save | grep -v KUBE- | grep -v CNI- | grep -v flannel | iptables-restore
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76 ip6tables-save | grep -v KUBE- | grep -v CNI- | grep -v flannel | ip6tables-restore
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