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kubectl-ko
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kubectl-ko
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#!/bin/bash
set -euo pipefail
KUBE_OVN_NS=kube-system
WITHOUT_KUBE_PROXY=${WITHOUT_KUBE_PROXY:-false}
OVN_NB_POD=
OVN_SB_POD=
OVN_NORTHD_POD=
KUBE_OVN_VERSION=
REGISTRY="docker.io/kubeovn"
PERF_TIMES=5
PERF_LABEL="PerfTest"
CONN_CHECK_LABEL="conn-check"
CONN_CHECK_SERVER="conn-check-server"
PERF_GC_COMMAND=()
LAST_PERF_FAILED_LOG=""
OVN_TRACE=0
showHelp(){
echo "kubectl ko {subcommand} [option...]"
echo "Available Subcommands:"
echo " [nb|sb] [status|kick|backup|dbstatus|restore] ovn-db operations show cluster status, kick stale server, backup database, get db consistency status or restore ovn nb db when met 'inconsistent data' error"
echo " nbctl [ovn-nbctl options ...] invoke ovn-nbctl"
echo " sbctl [ovn-sbctl options ...] invoke ovn-sbctl"
echo " vsctl {nodeName} [ovs-vsctl options ...] invoke ovs-vsctl on the specified node"
echo " ofctl {nodeName} [ovs-ofctl options ...] invoke ovs-ofctl on the specified node"
echo " dpctl {nodeName} [ovs-dpctl options ...] invoke ovs-dpctl on the specified node"
echo " appctl {nodeName} [ovs-appctl options ...] invoke ovs-appctl on the specified node"
echo " tcpdump {namespace/podname} [tcpdump options ...] capture pod traffic"
echo " trace/ovn-trace ... trace ovn microflow of specific packet"
echo " trace/ovn-trace {namespace/podname} {target ip address} [target mac address] {icmp|tcp|udp} [target tcp/udp port] trace ICMP/TCP/UDP"
echo " trace/ovn-trace {namespace/podname} {target ip address} [target mac address] arp {request|reply} trace ARP request/reply"
echo " trace/ovn-trace {node//nodename} {target ip address} [target mac address] {icmp|tcp|udp} [target tcp/udp port] trace ICMP/TCP/UDP"
echo " trace/ovn-trace {node//nodename} {target ip address} [target mac address] arp {request|reply} trace ARP request/reply"
echo " diagnose {all|node|subnet|IPPorts} [nodename|subnetName|{proto1}-{IP1}-{Port1},{proto2}-{IP2}-{Port2}] diagnose connectivity of all nodes or a specific node or specify subnet's ds pod or IPPorts like 'tcp-172.18.0.2-53,udp-172.18.0.3-53'"
echo " env-check check the environment configuration"
echo " tuning {install-fastpath|local-install-fastpath|remove-fastpath|install-stt|local-install-stt|remove-stt} {centos7|centos8}} [kernel-devel-version] deploy kernel optimisation components to the system"
echo " reload restart all kube-ovn components"
echo " log {kube-ovn|ovn|ovs|linux|all} save log to ./kubectl-ko-log/"
echo " perf [image] performance test default image is docker.io/kubeovn/test:v1.13.0"
}
# usage: ipv4_to_hex 192.168.0.1
ipv4_to_hex(){
printf "%02x" ${1//./ }
}
# convert hex to dec (portable version)
hex2dec(){
for i in $(echo "$@"); do
printf "%d\n" "$(( 0x$i ))"
done
}
# https://github.com/chmduquesne/wg-ip
# usage: expand_ipv6 2001::1
expand_ipv6(){
local ip=$1
# prepend 0 if we start with :
echo $ip | grep -qs "^:" && ip="0${ip}"
# expand ::
if echo $ip | grep -qs "::"; then
local colons=$(echo $ip | sed 's/[^:]//g')
local missing=$(echo ":::::::::" | sed "s/$colons//")
local expanded=$(echo $missing | sed 's/:/:0/g')
ip=$(echo $ip | sed "s/::/$expanded/")
fi
local blocks=$(echo $ip | grep -o "[0-9a-f]\+")
set $blocks
printf "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n" \
$(hex2dec $@)
}
# convert an IPv6 address to bytes
ipv6_bytes(){
for x in $(expand_ipv6 $1 | tr ':' ' '); do
printf "%d %d " $((0x$x >> 8 & 0xff)) $((0x$x & 0xff))
done
echo
}
# usage: ipIsInCidr 192.168.0.1 192.168.0.0/24
# return: 0 for true, 1 for false
ipIsInCidr(){
local ip=$1
local cidr=$2
if [[ $ip =~ .*:.* ]]; then
# IPv6
cidr=${cidr#*,}
local network=${cidr%/*}
local prefix=${cidr#*/}
local ip_bytes=($(ipv6_bytes $ip))
local network_bytes=($(ipv6_bytes $network))
for ((i=0; i<${#ip_bytes[*]}; i++)); do
if [ ${ip_bytes[$i]} -eq ${network_bytes[$i]} ]; then
continue
fi
if [ $((($i+1)*8)) -le $prefix ]; then
return 1
fi
if [ $(($i*8)) -ge $prefix ]; then
return 0
fi
if [ $((($i+1)*8)) -le $prefix ]; then
return 1
fi
local bits=$(($prefix-$i*8))
local mask=$((0xff<<$bits & 0xff))
# TODO: check whether the IP is network/broadcast address
if [ $((${ip_bytes[$i]} & $mask)) -ne ${network_bytes[$i]} ]; then
return 1
fi
done
return 0
fi
# IPv4
cidr=${cidr%,*}
local network=${cidr%/*}
local prefix=${cidr#*/}
local ip_hex=$(ipv4_to_hex $ip)
local ip_dec=$((0x$ip_hex))
local network_hex=$(ipv4_to_hex $network)
local network_dec=$((0x$network_hex))
local broadcast_dec=$(($network_dec + 2**(32-$prefix) - 1))
# TODO: check whether the IP is network/broadcast address
if [ $ip_dec -gt $network_dec -a $ip_dec -lt $broadcast_dec ]; then
return 0
fi
return 1
}
tcpdump(){
namespacedPod="$1"; shift
namespace=$(echo "$namespacedPod" | cut -d "/" -f1)
podName=$(echo "$namespacedPod" | cut -d "/" -f2)
if [ "$podName" = "$namespacedPod" ]; then
namespace="default"
fi
nodeName=$(kubectl get pod "$podName" -n "$namespace" -o jsonpath={.spec.nodeName})
hostNetwork=$(kubectl get pod "$podName" -n "$namespace" -o jsonpath={.spec.hostNetwork})
if [ -z "$nodeName" ]; then
echo "Pod $namespacedPod not exists on any node"
exit 1
fi
ovnCni=$(kubectl get pod -n $KUBE_OVN_NS -l app=kube-ovn-cni -o 'jsonpath={.items[?(@.spec.nodeName=="'$nodeName'")].metadata.name}')
if [ -z "$ovnCni" ]; then
echo "kube-ovn-cni not exist on node $nodeName"
exit 1
fi
if [ "$hostNetwork" = "true" ]; then
set -x
kubectl exec "$ovnCni" -n $KUBE_OVN_NS -- tcpdump -nn "$@"
else
nicName=$(kubectl exec "$ovnCni" -n $KUBE_OVN_NS -- ovs-vsctl --data=bare --no-heading --columns=name find interface external-ids:iface-id="$podName"."$namespace" | tr -d '\r')
if [ -z "$nicName" ]; then
echo "nic doesn't exist on node $nodeName"
exit 1
fi
podNicType=$(kubectl get pod "$podName" -n "$namespace" -o jsonpath={.metadata.annotations.ovn\\.kubernetes\\.io/pod_nic_type})
podNetNs=$(kubectl exec "$ovnCni" -n $KUBE_OVN_NS -- ovs-vsctl --data=bare --no-heading get interface "$nicName" external-ids:pod_netns | tr -d '\r' | sed -e 's/^"//' -e 's/"$//')
set -x
if [ "$podNicType" = "internal-port" ]; then
kubectl exec "$ovnCni" -n $KUBE_OVN_NS -- nsenter --net="$podNetNs" tcpdump -nn -i "$nicName" "$@"
else
kubectl exec "$ovnCni" -n $KUBE_OVN_NS -- nsenter --net="$podNetNs" tcpdump -nn -i eth0 "$@"
fi
fi
}
trace(){
set +u
local lsp= namespace= node= typedName= optNamespace=
if [[ "$1" =~ .*//.* ]]; then
node=${1##*/}
typedName="node/$node"
lsp=$(kubectl get $typedName -o jsonpath={.metadata.annotations.ovn\\.kubernetes\\.io/port_name})
else
local namespacedPod="$1"
namespace=$(echo "$namespacedPod" | cut -d "/" -f1)
local podName=$(echo "$namespacedPod" | cut -d "/" -f2)
if [ "$podName" = "$namespacedPod" ]; then
namespace="default"
fi
node=$(kubectl get pod "$podName" -n "$namespace" -o jsonpath={.spec.nodeName})
typedName="pod/$podName"
local hostNetwork=$(kubectl get "$typedName" -n "$namespace" -o jsonpath={.spec.hostNetwork})
if [ "$hostNetwork" = "true" ]; then
namespace=""
typedName="node/$node"
lsp=$(kubectl get $typedName -o jsonpath={.metadata.annotations.ovn\\.kubernetes\\.io/port_name})
else
optNamespace="-n $namespace"
lsp="$podName.$namespace"
fi
fi
local dst="$2"
if [ -z "$dst" ]; then
echo "Error: missing target IP address"
exit 1
fi
local dstMac=
if echo "$3" | grep -qE '^([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}$'; then
dstMac=$3
shift
fi
local type="$3"
if [ -z "$type" ]; then
echo "Error: missing protocol"
echo "Usage:"
echo " kubectl ko trace {namespace/podname} {target ip address} [target mac address] {icmp|tcp|udp} [target tcp/udp port]"
echo " kubectl ko trace {namespace/podname} {target ip address} [target mac address] arp {request|reply}"
echo " kubectl ko trace {node//nodename} {target ip address} [target mac address] {icmp|tcp|udp} [target tcp/udp port]"
echo " kubectl ko trace {node//nodename} {target ip address} [target mac address] arp {request|reply}"
exit 1
fi
local af="4" nw="nw" proto=
if [[ "$dst" =~ .*:.* ]]; then
af="6"
nw="ipv6"
proto="6"
fi
if [ "$type" = "arp" ]; then
if [ $af -eq 6 ]; then
echo "Error: invalid target IP address: $dst"
exit 1
fi
fi
local ips=($(kubectl get "$typedName" $optNamespace -o jsonpath={.metadata.annotations.ovn\\.kubernetes\\.io/ip_address} | sed 's/,/ /g'))
if [ ${#ips[@]} -eq 0 ]; then
echo "Error: $typedName address not ready"
exit 1
fi
if [ ! -n "$namespace" -a "$type" != "arp" ]; then
ips=($(kubectl get $typedName -o jsonpath='{.status.addresses[?(@.type=="InternalIP")].address}') ${ips[@]})
fi
local srcIP=""
for ip in ${ips[@]}; do
if [ "$af" = "4" ]; then
if [[ ! "$ip" =~ .*:.* ]]; then
srcIP=$ip
break
fi
elif [[ "$ip" =~ .*:.* ]]; then
srcIP=$ip
break
fi
done
if [ -z "$srcIP" ]; then
echo "Error: $typedName has no IPv$af address"
exit 1
fi
local ovnCni=$(kubectl get pod -n $KUBE_OVN_NS -l app=kube-ovn-cni -o 'jsonpath={.items[?(@.spec.nodeName=="'$node'")].metadata.name}')
if [ -z "$ovnCni" ]; then
echo "Error: no kube-ovn-cni Pod running on node $nodeName"
exit 1
fi
local ls=$(kubectl get "$typedName" $optNamespace -o jsonpath={.metadata.annotations.ovn\\.kubernetes\\.io/logical_switch})
if [ -z "$ls" ]; then
echo "Error: $typedName address not ready"
exit 1
fi
local cidr=$(kubectl get "$typedName" $optNamespace -o jsonpath={.metadata.annotations.ovn\\.kubernetes\\.io/cidr})
local mac=$(kubectl get "$typedName" $optNamespace -o jsonpath={.metadata.annotations.ovn\\.kubernetes\\.io/mac_address})
if [ "$type" != "arp" -o "$4" = "reply" ]; then
# need destination mac
if [ -z "$dstMac" ]; then
if ipIsInCidr $dst $cidr; then
set +o pipefail
if [ $af -eq 4 ]; then
dstMac=$(kubectl exec $OVN_NB_POD -n $KUBE_OVN_NS -c ovn-central -- ovn-nbctl --data=bare --no-heading --columns=addresses list logical_switch_port | grep -w "$(echo $dst | tr . '\.')" | awk '{print $1}')
else
dstMac=$(kubectl exec $OVN_NB_POD -n $KUBE_OVN_NS -c ovn-central -- ovn-nbctl --data=bare --no-heading --columns=addresses list logical_switch_port | grep -i " $dst\$" | awk '{print $1}')
fi
set -o pipefail
fi
fi
if [ -z "$dstMac" ]; then
if [ "$type" = "arp" ]; then
# destination mac must be set for ARP reply
echo "Error: missing destination mac address"
exit 1
fi
local vlan=$(kubectl get subnet "$ls" -o jsonpath={.spec.vlan})
local logicalGateway=$(kubectl get subnet "$ls" -o jsonpath={.spec.logicalGateway})
local u2oIC=$(kubectl get subnet "$ls" -o jsonpath={.spec.u2oInterconnection})
if [ ! -z "$vlan" -a "$logicalGateway" != "true" -a "$u2oIC" != "true" ]; then
gateway=$(kubectl get subnet "$ls" -o jsonpath={.spec.gateway})
if [[ "$gateway" =~ .*,.* ]]; then
if [ "$af" = "4" ]; then
gateway=${gateway%%,*}
else
gateway=${gateway##*,}
fi
fi
local nicName=$(kubectl exec "$ovnCni" -c cni-server -n $KUBE_OVN_NS -- ovs-vsctl --data=bare --no-heading --columns=name find interface external-ids:iface-id="$lsp" | tr -d '\r')
if [ -z "$nicName" ]; then
echo "Error: failed to find ovs interface for LSP $lsp"
exit 1
fi
local podNicType=$(kubectl get "$typedName" $optNamespace -o jsonpath={.metadata.annotations.ovn\\.kubernetes\\.io/pod_nic_type})
local podNetNs=$(kubectl exec "$ovnCni" -c cni-server -n $KUBE_OVN_NS -- ovs-vsctl --data=bare --no-heading get interface "$nicName" external-ids:pod_netns | tr -d '\r' | sed -e 's/^"//' -e 's/"$//')
local nicName= nsenterCmd=
if [ ! -z $podNetNs ]; then
nsenterCmd="nsenter --net='$podNetNs'"
fi
if [ "$podNicType" != "internal-port" ]; then
local interface=$(kubectl exec "$ovnCni" -c cni-server -n $KUBE_OVN_NS -- ovs-vsctl --format=csv --data=bare --no-heading --columns=name find interface external_id:iface-id="$lsp")
local peer=$(kubectl exec "$ovnCni" -c cni-server -n $KUBE_OVN_NS -- ip link show $interface | grep -oE "^[0-9]+:\\s$interface@if[0-9]+" | awk -F @ '{print $2}')
local peerIndex=${peer//if/}
local peer=$(kubectl exec "$ovnCni" -c cni-server -n $KUBE_OVN_NS -- sh -c "$nsenterCmd ip link show type veth" | grep "^$peerIndex:" | awk -F @ '{print $1}')
nicName=$(echo $peer | awk '{print $2}')
fi
set +o pipefail
local master=$(kubectl exec "$ovnCni" -c cni-server -n $KUBE_OVN_NS -- sh -c "$nsenterCmd ip link show $nicName" | grep -Eo '\smaster\s\w+\s' | awk '{print $2}')
set -o pipefail
if [ ! -z "$master" ]; then
echo "Error: Pod nic $nicName is a slave of $master, please set the destination mac address."
exit 1
fi
local cmd= output=
if [[ "$gateway" =~ .*:.* ]]; then
cmd="ndisc6 -q $gateway $nicName"
output=$(kubectl exec "$ovnCni" -c cni-server -n $KUBE_OVN_NS -- sh -c "$nsenterCmd ndisc6 -q $gateway $nicName")
else
cmd="arping -c3 -C1 -i1 -I $nicName $gateway"
output=$(kubectl exec "$ovnCni" -c cni-server -n $KUBE_OVN_NS -- sh -c "$nsenterCmd arping -c3 -C1 -i1 -I $nicName $gateway")
fi
if [ $? -ne 0 ]; then
echo "Error: failed to execute '$cmd' in $typedName"
exit 1
fi
dstMac=$(echo "$output" | grep -oE '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}')
fi
fi
if [ -z "$dstMac" ]; then
echo "Using the logical gateway mac address as destination"
local lr=$(kubectl get "$typedName" $optNamespace -o jsonpath={.metadata.annotations.ovn\\.kubernetes\\.io/logical_router})
if [ -z "$lr" ]; then
lr=$(kubectl get subnet "$ls" -o jsonpath={.spec.vpc})
fi
dstMac=$(kubectl exec $OVN_NB_POD -n $KUBE_OVN_NS -c ovn-central -- ovn-nbctl --data=bare --no-heading --columns=mac find logical_router_port name="$lr-$ls" | tr -d '\r')
fi
if [ -z "$dstMac" ]; then
echo "Error: failed to get destination mac"
exit 1
fi
fi
if [ -z "$dstMac" ]; then
# set default destination mac address for ARP request
dstMac="ff:ff:ff:ff:ff:ff"
fi
local lspUUID=$(kubectl exec $OVN_NB_POD -n $KUBE_OVN_NS -c ovn-central -- ovn-nbctl --data=bare --no-heading --columns=_uuid find logical_switch_port name="$lsp")
if [ -z "$lspUUID" ]; then
echo "Notice: LSP $lsp does not exist"
fi
local vmOwner=$(kubectl get "$typedName" $optNamespace -o jsonpath='{.metadata.ownerReferences[?(@.kind=="VirtualMachineInstance")].name}')
if [ ! -z "$vmOwner" ]; then
lsp="$vmOwner.$namespace"
fi
if [ -z "$lsp" ]; then
echo "Error: failed to get LSP of $typedName"
exit 1
fi
case $type in
icmp)
set -x
kubectl exec "$OVN_SB_POD" -n $KUBE_OVN_NS -c ovn-central -- ovn-trace "$ls" "inport == \"$lsp\" && ip.ttl == 64 && icmp && eth.src == $mac && ip$af.src == $srcIP && eth.dst == $dstMac && ip$af.dst == $dst && ct.new"
;;
tcp|udp)
set -x
kubectl exec "$OVN_SB_POD" -n $KUBE_OVN_NS -c ovn-central -- ovn-trace "$ls" "inport == \"$lsp\" && ip.ttl == 64 && eth.src == $mac && ip$af.src == $srcIP && eth.dst == $dstMac && ip$af.dst == $dst && $type.src == 10000 && $type.dst == $4 && ct.new"
;;
arp)
case "$4" in
""|request)
set -x
kubectl exec "$OVN_SB_POD" -n $KUBE_OVN_NS -c ovn-central -- ovn-trace "$ls" "inport == \"$lsp\" && eth.src == $mac && eth.dst == $dstMac && arp.op == 1 && arp.sha == $mac && arp.tha == 00:00:00:00:00:00 && arp.spa == $srcIP && arp.tpa == $dst"
;;
reply)
set -x
kubectl exec "$OVN_SB_POD" -n $KUBE_OVN_NS -c ovn-central -- ovn-trace "$ls" "inport == \"$lsp\" && eth.src == $mac && eth.dst == $dstMac && arp.op == 2 && arp.sha == $mac && arp.tha == $dstMac && arp.spa == $srcIP && arp.tpa == $dst"
;;
*)
echo "Error: invalid ARP type $4"
echo "Usage:"
echo " kubectl ko trace {namespace/podname} {target ip address} [target mac address] arp {request|reply}"
echo " kubectl ko trace {node//nodename} {target ip address} [target mac address] arp {request|reply}"
exit 1
;;
esac
;;
*)
echo "Error: invalid type $type"
echo "Usage:"
echo " kubectl ko trace {namespace/podname} {target ip address} [target mac address] {icmp|tcp|udp} [target tcp/udp port]"
echo " kubectl ko trace {namespace/podname} {target ip address} [target mac address] arp {request|reply}"
echo " kubectl ko trace {node//nodename} {target ip address} [target mac address] {icmp|tcp|udp} [target tcp/udp port]"
echo " kubectl ko trace {node//nodename} {target ip address} [target mac address] arp {request|reply}"
exit 1
;;
esac
set +x
test $OVN_TRACE -ne 0 && return
echo "--------"
echo "Start OVS Tracing"
echo ""
echo ""
local inPort=$(kubectl exec "$ovnCni" -c cni-server -n $KUBE_OVN_NS -- ovs-vsctl --format=csv --data=bare --no-heading --columns=ofport find interface external_id:iface-id="$lsp")
case $type in
icmp)
set -x
kubectl exec "$ovnCni" -c cni-server -n $KUBE_OVN_NS -- ovs-appctl ofproto/trace br-int "in_port=$inPort,icmp$proto,nw_ttl=64,${nw}_src=$srcIP,${nw}_dst=$dst,dl_src=$mac,dl_dst=$dstMac"
;;
tcp|udp)
set -x
kubectl exec "$ovnCni" -c cni-server -n $KUBE_OVN_NS -- ovs-appctl ofproto/trace br-int "in_port=$inPort,$type$proto,nw_ttl=64,${nw}_src=$srcIP,${nw}_dst=$dst,dl_src=$mac,dl_dst=$dstMac,${type}_src=1000,${type}_dst=$4"
;;
arp)
case "$4" in
""|request)
set -x
kubectl exec "$ovnCni" -c cni-server -n $KUBE_OVN_NS -- ovs-appctl ofproto/trace br-int "in_port=$inPort,arp,arp_op=1,dl_src=$mac,dl_dst=$dstMac,arp_spa=$srcIP,arp_tpa=$dst,arp_sha=$mac,arp_tha=00:00:00:00:00:00"
;;
reply)
set -x
kubectl exec "$ovnCni" -c cni-server -n $KUBE_OVN_NS -- ovs-appctl ofproto/trace br-int "in_port=$inPort,arp,arp_op=2,dl_src=$mac,dl_dst=$dstMac,arp_spa=$srcIP,arp_tpa=$dst,arp_sha=$mac,arp_tha=$dstMac"
;;
esac
;;
esac
}
xxctl(){
subcommand="$1"; shift
nodeName="$1"; shift
kubectl get no "$nodeName" > /dev/null
ovsPod=$(kubectl get pod -n $KUBE_OVN_NS -l app=ovs -o 'jsonpath={.items[?(@.spec.nodeName=="'$nodeName'")].metadata.name}')
if [ -z "$ovsPod" ]; then
echo "ovs pod doesn't exist on node $nodeName"
exit 1
fi
kubectl exec "$ovsPod" -n $KUBE_OVN_NS -- ovs-$subcommand "$@"
}
checkLeader(){
component="$1"; shift
set +o pipefail
count=$(kubectl get ep ovn-$component -n $KUBE_OVN_NS -o yaml | grep ip | wc -l)
set -o pipefail
if [ $count -eq 0 ]; then
echo "no ovn-$component exists !!"
exit 1
fi
if [ $count -gt 1 ]; then
echo "ovn-$component has more than one leader !!"
exit 1
fi
echo "ovn-$component leader check ok"
}
applyConnServerDaemonset(){
subnetName=$1
if [ $(kubectl get subnet $subnetName | wc -l) -eq 0 ]; then
echo "no subnet $subnetName exists !!"
exit 1
fi
imageID=$(kubectl get ds -n $KUBE_OVN_NS kube-ovn-pinger -o jsonpath={.spec.template.spec.containers[0].image})
cat <<EOF | kubectl apply -f -
kind: DaemonSet
apiVersion: apps/v1
metadata:
name: $subnetName-$CONN_CHECK_SERVER
namespace: $KUBE_OVN_NS
labels:
app: $CONN_CHECK_LABEL
spec:
selector:
matchLabels:
app: $CONN_CHECK_LABEL
template:
metadata:
annotations:
ovn.kubernetes.io/logical_switch: $subnetName
labels:
app: $CONN_CHECK_LABEL
spec:
serviceAccountName: kube-ovn-app
containers:
- name: $subnetName-$CONN_CHECK_SERVER
imagePullPolicy: IfNotPresent
image: $imageID
command:
- /kube-ovn/kube-ovn-pinger
args:
- --enable-verbose-conn-check=true
env:
- name: POD_NAME
valueFrom:
fieldRef:
fieldPath: metadata.name
EOF
isfailed=true
for i in {0..59}
do
if kubectl wait pod --for=condition=Ready -l app=$CONN_CHECK_LABEL -n $KUBE_OVN_NS 2> /dev/null; then
isfailed=false
break
fi
sleep 1; \
done
if $isfailed; then
echo "Error ds $subnetName-$CONN_CHECK_SERVER pod not ready"
return
fi
}
applyTestNodePortService() {
local svcName="test-node-port"
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: Service
metadata:
labels:
app: $CONN_CHECK_LABEL
name: $svcName
namespace: $KUBE_OVN_NS
spec:
type: NodePort
ports:
- port: 60001
protocol: TCP
targetPort: 8080
name: kube-ovn-pinger
selector:
app: kube-ovn-pinger
EOF
}
getTestNodePortServiceIPPorts() {
targetIPPorts=""
nodeIPs=($(kubectl get node -o wide | grep -v "INTERNAL-IP" | awk '{print $6}'))
nodePort=$(kubectl get svc test-node-port -n $KUBE_OVN_NS -o 'jsonpath={.spec.ports[0].nodePort}')
for nodeIP in "${nodeIPs[@]}"
do
if [ -z "$targetIPPorts" ]; then
targetIPPorts="tcp-$nodeIP-$nodePort"
else
targetIPPorts="$targetIPPorts,tcp-$nodeIP-$nodePort"
fi
done
echo "$targetIPPorts"
}
diagnose(){
gcCommands=()
kubectl get crd vpcs.kubeovn.io
kubectl get crd vpc-nat-gateways.kubeovn.io
kubectl get crd subnets.kubeovn.io
kubectl get crd ips.kubeovn.io
kubectl get crd vlans.kubeovn.io
kubectl get crd provider-networks.kubeovn.io
set +eu
if ! kubectl get svc kube-dns -n kube-system ; then
echo "Warning: kube-dns doesn't exist, maybe there is coredns service."
fi
set -eu
kubectl get svc kubernetes -n default
kubectl get sa -n kube-system ovn
kubectl get clusterrole system:ovn
kubectl get clusterrolebinding ovn
kubectl get no -o wide
kubectl ko nbctl show
kubectl ko nbctl lr-policy-list ovn-cluster
kubectl ko nbctl lr-route-list ovn-cluster
kubectl ko nbctl ls-lb-list ovn-default
kubectl ko nbctl list address_set
kubectl ko nbctl list acl
kubectl ko sbctl show
if [ "${WITHOUT_KUBE_PROXY}" = "false" ]; then
checkKubeProxy
fi
checkDeployment ovn-central
checkDeployment kube-ovn-controller
checkDaemonSet kube-ovn-cni
checkDaemonSet ovs-ovn
checkDeployment coredns
checkLeader nb
checkLeader sb
checkLeader northd
quitDiagnose() {
if [ ! ${#gcCommands[@]} -eq 0 ]; then
for item in "${gcCommands[@]}"
do
echo $item
eval "$item"
done
fi
}
trap quitDiagnose EXIT
type="$1"
if [[ $type != "IPPorts" ]]; then
gcCommands+=("kubectl delete svc -l app=$CONN_CHECK_LABEL -n $KUBE_OVN_NS")
applyTestNodePortService
targetIPPorts=$(getTestNodePortServiceIPPorts)
fi
case $type in
all)
echo "### kube-ovn-controller recent log"
set +e
kubectl logs -n $KUBE_OVN_NS -l app=kube-ovn-controller --tail=100 | grep E$(date +%m%d)
set -e
echo ""
pingers=$(kubectl -n $KUBE_OVN_NS get po --no-headers -o custom-columns=NAME:.metadata.name -l app=kube-ovn-pinger)
for pinger in $pingers
do
nodeName=$(kubectl get pod "$pinger" -n "$KUBE_OVN_NS" -o jsonpath={.spec.nodeName})
echo "### start to diagnose node $nodeName"
echo "#### ovn-controller log:"
kubectl exec -n $KUBE_OVN_NS "$pinger" -- tail /var/log/ovn/ovn-controller.log
echo ""
echo "#### ovs-vswitchd log:"
kubectl exec -n $KUBE_OVN_NS "$pinger" -- tail /var/log/openvswitch/ovs-vswitchd.log
echo ""
echo "#### ovs-vsctl show results:"
kubectl exec -n $KUBE_OVN_NS "$pinger" -- ovs-vsctl show
echo ""
echo "#### pinger diagnose results:"
kubectl exec -n $KUBE_OVN_NS "$pinger" -- /kube-ovn/kube-ovn-pinger --mode=job --external-address=114.114.114.114,2400:3200::1 --target-ip-ports=$targetIPPorts
echo "### finish diagnose node $nodeName"
echo ""
done
;;
node)
nodeName="$2"
kubectl get no "$nodeName" > /dev/null
pinger=$(kubectl -n $KUBE_OVN_NS get po -l app=kube-ovn-pinger -o 'jsonpath={.items[?(@.spec.nodeName=="'$nodeName'")].metadata.name}')
if [ ! -n "$pinger" ]; then
echo "Error: No kube-ovn-pinger running on node $nodeName"
exit 1
fi
echo "### start to diagnose node $nodeName"
echo "#### ovn-controller log:"
kubectl exec -n $KUBE_OVN_NS "$pinger" -- tail /var/log/ovn/ovn-controller.log
echo ""
echo "#### ovs-vswitchd log:"
kubectl exec -n $KUBE_OVN_NS "$pinger" -- tail /var/log/openvswitch/ovs-vswitchd.log
echo ""
kubectl exec -n $KUBE_OVN_NS "$pinger" -- /kube-ovn/kube-ovn-pinger --mode=job --external-address=114.114.114.114,2400:3200::1 --target-ip-ports=$targetIPPorts
echo "### finish diagnose node $nodeName"
echo ""
;;
subnet)
subnetName="$2"
gcCommands+=("kubectl delete ds -l app=$CONN_CHECK_LABEL -n $KUBE_OVN_NS")
applyConnServerDaemonset $subnetName
if [ $(kubectl get ds kube-ovn-cni -n $KUBE_OVN_NS -oyaml | grep enable-verbose-conn-check | wc -l) -eq 0 ]; then
echo "Warning: kube-ovn-cni not have args enable-verbose-conn-check, it will fail when check node tcp/udp connectivity"
fi
pingers=$(kubectl -n $KUBE_OVN_NS get po --no-headers -o custom-columns=NAME:.metadata.name -l app=kube-ovn-pinger)
for pinger in $pingers
do
echo "#### pinger $pinger on namespace $KUBE_OVN_NS diagnose results:"
kubectl exec -n $KUBE_OVN_NS "$pinger" -- /kube-ovn/kube-ovn-pinger --mode=job --ds-name=$subnetName-$CONN_CHECK_SERVER --ds-namespace=$KUBE_OVN_NS --enable-verbose-conn-check=true --external-address=114.114.114.114,2400:3200::1 --target-ip-ports=$targetIPPorts
echo ""
done
;;
IPPorts)
targetIPPorts="$2"
pingers=$(kubectl -n $KUBE_OVN_NS get po --no-headers -o custom-columns=NAME:.metadata.name -l app=kube-ovn-pinger)
for pinger in $pingers
do
echo "#### pinger $pinger on namespace $KUBE_OVN_NS diagnose results:"
kubectl exec -n $KUBE_OVN_NS "$pinger" -- /kube-ovn/kube-ovn-pinger --mode=job --target-ip-ports=$targetIPPorts
echo ""
done
;;
*)
echo "type $type not supported"
echo "kubectl ko diagnose {all|node|subnet|IPPorts} [nodename|subnetName|{proto1}-{IP1}-{Port1},{proto2}-{IP2}-{Port2}]"
;;
esac
}
getOvnCentralPod(){
NB_POD=$(kubectl get pod -n $KUBE_OVN_NS -l ovn-nb-leader=true | grep ovn-central | awk '{if($2=="1/1" && $3=="Running") print $1}' | head -n 1 )
if [ -z "$NB_POD" ]; then
echo "nb leader not exists"
exit 1
fi
OVN_NB_POD=$NB_POD
SB_POD=$(kubectl get pod -n $KUBE_OVN_NS -l ovn-sb-leader=true | grep ovn-central | awk '{if($2=="1/1" && $3=="Running") print $1}' | head -n 1 )
if [ -z "$SB_POD" ]; then
echo "sb leader not exists"
exit 1
fi
OVN_SB_POD=$SB_POD
NORTHD_POD=$(kubectl get pod -n kube-system -l ovn-northd-leader=true | grep ovn-central | head -n 1 | awk '{print $1}')
if [ -z "$NORTHD_POD" ]; then
echo "ovn northd not exists"
exit 1
fi
OVN_NORTHD_POD=$NORTHD_POD
image=$(kubectl -n kube-system get pods -l app=kube-ovn-cni -o jsonpath='{.items[0].spec.containers[0].image}')
if [ -z "$image" ]; then
echo "cannot get kube-ovn image"
exit 1
fi
REGISTRY=$(dirname $image)
KUBE_OVN_VERSION=$(basename $image | awk -F ':' '{print $2}')
}
getOvnCentralDbStatus(){
NB_PODS=$(kubectl get pod -n $KUBE_OVN_NS | grep ovn-central | awk '{print $1}')
for pod in $NB_PODS
do
echo "get dbstatus in pod $pod"
nbstatus=`kubectl exec "$pod" -n $KUBE_OVN_NS -c ovn-central -- ovn-appctl -t /var/run/ovn/ovnnb_db.ctl ovsdb-server/get-db-storage-status OVN_Northbound`
echo "nb db status $nbstatus"
sbstatus=`kubectl exec "$pod" -n $KUBE_OVN_NS -c ovn-central -- ovn-appctl -t /var/run/ovn/ovnsb_db.ctl ovsdb-server/get-db-storage-status OVN_Southbound`
echo "sb db status $sbstatus"
done
}
checkDaemonSet(){
name="$1"
currentScheduled=$(kubectl get ds -n $KUBE_OVN_NS "$name" -o jsonpath={.status.currentNumberScheduled})
desiredScheduled=$(kubectl get ds -n $KUBE_OVN_NS "$name" -o jsonpath={.status.desiredNumberScheduled})
available=$(kubectl get ds -n $KUBE_OVN_NS "$name" -o jsonpath={.status.numberAvailable})
ready=$(kubectl get ds -n $KUBE_OVN_NS "$name" -o jsonpath={.status.numberReady})
if [ "$currentScheduled" = "$desiredScheduled" ] && [ "$desiredScheduled" = "$available" ] && [ "$available" = "$ready" ]; then
echo "ds $name ready"
else
echo "Error ds $name not ready"
exit 1
fi
}
checkDeployment(){
name="$1"
isfailed=true
for i in {0..29}
do
ready=$(kubectl get deployment -n $KUBE_OVN_NS "$name" -o jsonpath={.status.readyReplicas})
updated=$(kubectl get deployment -n $KUBE_OVN_NS "$name" -o jsonpath={.status.updatedReplicas})
desire=$(kubectl get deployment -n $KUBE_OVN_NS "$name" -o jsonpath={.status.replicas})
available=$(kubectl get deployment -n $KUBE_OVN_NS "$name" -o jsonpath={.status.availableReplicas})
if [ "$ready" = "$updated" ] && [ "$updated" = "$desire" ] && [ "$desire" = "$available" ]; then
echo "deployment $name ready"
isfailed=false
break
fi
sleep 1
done
if $isfailed; then
echo "Error deployment $name not ready"
fi
}
checkKubeProxy(){
if kubectl get ds -n kube-system --no-headers -o custom-columns=NAME:.metadata.name | grep '^kube-proxy$' >/dev/null; then
checkDaemonSet kube-proxy
else
for node in $(kubectl get node --no-headers -o custom-columns=NAME:.metadata.name); do
local pod=$(kubectl get pod -n $KUBE_OVN_NS -l app=kube-ovn-cni -o 'jsonpath={.items[?(@.spec.nodeName=="'$node'")].metadata.name}')
local ip=$(kubectl get pod -n $KUBE_OVN_NS -l app=kube-ovn-cni -o 'jsonpath={.items[?(@.spec.nodeName=="'$node'")].status.podIP}')
local arg=""
if [[ $ip =~ .*:.* ]]; then
arg="g6"
ip="[$ip]"
fi
healthResult=$(kubectl -n $KUBE_OVN_NS exec $pod -- curl -s${arg} -m 3 -w %{http_code} http://$ip:10256/healthz -o /dev/null | grep -v 200 || true)
if [ -n "$healthResult" ]; then
echo "$node kube-proxy's health check failed"
exit 1
fi
done
fi
echo "kube-proxy ready"
}
dbtool(){
suffix=$(date +%m%d%H%M%s)
component="$1"; shift
action="$1"; shift
case $component in
nb)
case $action in
status)
kubectl exec "$OVN_NB_POD" -n $KUBE_OVN_NS -c ovn-central -- ovs-appctl -t /var/run/ovn/ovnnb_db.ctl cluster/status OVN_Northbound
kubectl exec "$OVN_NB_POD" -n $KUBE_OVN_NS -c ovn-central -- ovs-appctl -t /var/run/ovn/ovnnb_db.ctl ovsdb-server/get-db-storage-status OVN_Northbound
;;
kick)
kubectl exec "$OVN_NB_POD" -n $KUBE_OVN_NS -c ovn-central -- ovs-appctl -t /var/run/ovn/ovnnb_db.ctl cluster/kick OVN_Northbound "$1"
;;
backup)
kubectl exec "$OVN_NB_POD" -n $KUBE_OVN_NS -c ovn-central -- ovsdb-tool cluster-to-standalone /etc/ovn/ovnnb_db.$suffix.backup /etc/ovn/ovnnb_db.db
kubectl cp $KUBE_OVN_NS/$OVN_NB_POD:/etc/ovn/ovnnb_db.$suffix.backup $(pwd)/ovnnb_db.$suffix.backup
kubectl exec "$OVN_NB_POD" -n $KUBE_OVN_NS -c ovn-central -- rm -f /etc/ovn/ovnnb_db.$suffix.backup
echo "backup ovn-$component db to $(pwd)/ovnnb_db.$suffix.backup"
;;
dbstatus)
getOvnCentralDbStatus
;;
restore)
# set ovn-central replicas to 0
replicas=$(kubectl get deployment -n $KUBE_OVN_NS ovn-central -o jsonpath={.spec.replicas})
kubectl scale deployment -n $KUBE_OVN_NS ovn-central --replicas=0
echo "ovn-central original replicas is $replicas"
# backup ovn-nb db
declare nodeIpArray
declare podNameArray
declare nodeIps
if [[ $(kubectl get deployment -n kube-system ovn-central -o jsonpath='{.spec.template.spec.containers[0].env[1]}') =~ "NODE_IPS" ]]; then
nodeIpVals=`kubectl get deployment -n kube-system ovn-central -o jsonpath='{.spec.template.spec.containers[0].env[1].value}'`
nodeIps=(${nodeIpVals//,/ })
else
nodeIps=`kubectl get node -lkube-ovn/role=master -o wide | grep -v "INTERNAL-IP" | awk '{print $6}'`
fi
firstIP=${nodeIps[0]}
podNames=`kubectl get pod -n $KUBE_OVN_NS | grep ovs-ovn | awk '{print $1}'`
echo "first nodeIP is $firstIP"
i=0
for nodeIp in ${nodeIps[@]}
do
for pod in $podNames
do
hostip=$(kubectl get pod -n $KUBE_OVN_NS $pod -o jsonpath={.status.hostIP})
if [ $nodeIp = $hostip ]; then
nodeIpArray[$i]=$nodeIp
podNameArray[$i]=$pod
i=`expr $i + 1`
echo "ovs-ovn pod on node $nodeIp is $pod"
break
fi
done
done
echo "backup nb db file"
kubectl exec -it -n $KUBE_OVN_NS ${podNameArray[0]} -- ovsdb-tool cluster-to-standalone /etc/ovn/ovnnb_db_standalone.db /etc/ovn/ovnnb_db.db
# mv all db files
for pod in ${podNameArray[@]}
do
kubectl exec -it -n $KUBE_OVN_NS $pod -- mv -f /etc/ovn/ovnnb_db.db /tmp
kubectl exec -it -n $KUBE_OVN_NS $pod -- mv -f /etc/ovn/ovnsb_db.db /tmp
done
# restore db and replicas
echo "restore nb db file, operate in pod ${podNameArray[0]}"
kubectl exec -it -n $KUBE_OVN_NS ${podNameArray[0]} -- mv -f /etc/ovn/ovnnb_db_standalone.db /etc/ovn/ovnnb_db.db
kubectl scale deployment -n $KUBE_OVN_NS ovn-central --replicas=$replicas
# wait ovn-central pods running
availabelNum=$(kubectl get deployment -n $KUBE_OVN_NS | grep ovn-central | awk {'print $4'})
while [ $availabelNum != $replicas ]
do
availabelNum=$(kubectl get deployment -n $KUBE_OVN_NS | grep ovn-central | awk {'print $4'})
echo "wait all ovn-central pods running, availabel $availabelNum"
sleep 1
done
echo "finish restore nb db file and ovn-central replicas"
echo "restart ovs-ovn"
kubectl -n $KUBE_OVN_NS rollout restart ds ovs-ovn
;;
*)
echo "unknown action $action"
esac
;;
sb)
case $action in
status)
kubectl exec "$OVN_SB_POD" -n $KUBE_OVN_NS -c ovn-central -- ovs-appctl -t /var/run/ovn/ovnsb_db.ctl cluster/status OVN_Southbound
kubectl exec "$OVN_SB_POD" -n $KUBE_OVN_NS -c ovn-central -- ovs-appctl -t /var/run/ovn/ovnsb_db.ctl ovsdb-server/get-db-storage-status OVN_Southbound
;;
kick)
kubectl exec "$OVN_SB_POD" -n $KUBE_OVN_NS -c ovn-central -- ovs-appctl -t /var/run/ovn/ovnsb_db.ctl cluster/kick OVN_Southbound "$1"
;;
backup)
kubectl exec "$OVN_SB_POD" -n $KUBE_OVN_NS -c ovn-central -- ovsdb-tool cluster-to-standalone /etc/ovn/ovnsb_db.$suffix.backup /etc/ovn/ovnsb_db.db
kubectl cp $KUBE_OVN_NS/$OVN_SB_POD:/etc/ovn/ovnsb_db.$suffix.backup $(pwd)/ovnsb_db.$suffix.backup
kubectl exec "$OVN_SB_POD" -n $KUBE_OVN_NS -c ovn-central -- rm -f /etc/ovn/ovnsb_db.$suffix.backup
echo "backup ovn-$component db to $(pwd)/ovnsb_db.$suffix.backup"
;;
dbstatus)
getOvnCentralDbStatus
;;
restore)
echo "restore cmd is only used for nb db"
;;
*)
echo "unknown action $action"
esac
;;
*)
echo "unknown subcommand $component"
esac
}
tuning(){
action="$1"; shift
sys="$1"; shift
case $action in
install-fastpath)
case $sys in
centos7)
docker run -it --privileged -v /lib/modules:/lib/modules -v /usr/src:/usr/src -v /tmp/:/tmp/ $REGISTRY/centos7-compile:"$KUBE_OVN_VERSION" bash -c "./module.sh centos install"
while [ ! -f /tmp/kube_ovn_fastpath.ko ];
do
sleep 1
done
for i in $(kubectl -n kube-system get pods | grep ovn-cni | awk '{print $1}');
do
kubectl cp /tmp/kube_ovn_fastpath.ko kube-system/"$i":/tmp/
done
;;
centos8)
docker run -it --privileged -v /lib/modules:/lib/modules -v /usr/src:/usr/src -v /tmp/:/tmp/ $REGISTRY/centos8-compile:"$KUBE_OVN_VERSION" bash -c "./module.sh centos install"
while [ ! -f /tmp/kube_ovn_fastpath.ko ];
do
sleep 1
done
for i in $(kubectl -n kube-system get pods | grep ovn-cni | awk '{print $1}');
do
kubectl cp /tmp/kube_ovn_fastpath.ko kube-system/"$i":/tmp/
done
;;
*)
echo "unknown system $sys"
esac
;;
local-install-fastpath)
case $sys in
centos7)
# shellcheck disable=SC2145
docker run -it --privileged -v /lib/modules:/lib/modules -v /usr/src:/usr/src -v /tmp:/tmp $REGISTRY/centos7-compile:"$KUBE_OVN_VERSION" bash -c "./module.sh centos local-install $@"