[skip e2e]Add script to export log for Milvus deployed by operator (#19198)

Signed-off-by: zhuwenxing <wenxing.zhu@zilliz.com>

Signed-off-by: zhuwenxing <wenxing.zhu@zilliz.com>

tests/scripts/export_log_k8s_for_operator.sh

@@ -0,0 +1,54 @@
+#!/bin/bash
+
+# Exit immediately for non zero status
+set -e
+
+ns_name=$1
+instance_name=$2
+log_dir=${3:-"k8s_logs"}
+
+#show proxy pod log
+array=($(kubectl get pod -n ${ns_name} -l "app.kubernetes.io/component=proxy, app.kubernetes.io/instance=${instance_name}"| awk 'NR == 1 {next} {print $1}'))
+echo ${array[@]}
+
+for pod in ${array[*]}
+do
+echo "show log of proxy pod $pod "
+kubectl logs $pod -n ${ns_name} --tail=100 || echo "show log for pod $pod failed"
+done
+
+# export info of etcd
+array=($(kubectl get pod -n ${ns_name} -l "app.kubernetes.io/name=etcd, app.kubernetes.io/instance=${instance_name}-etcd"| awk 'NR == 1 {next} {print $1}'))
+echo ${array[@]}
+mkdir -p $log_dir/etcd_session
+for pod in ${array[*]}
+do
+echo "check session for etcd pod $pod "
+kubectl exec $pod -n ${ns_name} -- etcdctl get --prefix by-dev/meta/session > ./$log_dir/etcd_session/$pod.log || echo "export session for pod $pod failed"
+done
+echo "check session done"
+
+# export logs of all pods
+array_1=($(kubectl get pod -n ${ns_name} -l "app.kubernetes.io/instance=${instance_name}"| awk 'NR == 1 {next} {print $1}'))
+array_2=($(kubectl get pod -n ${ns_name} -l "app.kubernetes.io/instance=${instance_name}-etcd"| awk 'NR == 1 {next} {print $1}'))
+array_3=($(kubectl get pod -n ${ns_name} -l "release=${instance_name}-minio"| awk 'NR == 1 {next} {print $1}'))
+array_4=($(kubectl get pod -n ${ns_name} -l "release=${instance_name}-pulsar"| awk 'NR == 1 {next} {print $1}'))
+
+array=(${array_1[@]} ${array_2[@]} ${array_3[@]} ${array_4[@]})
+
+echo ${array[@]}
+if [ ! -d $log_dir/pod_log ] || [ ! -d $log_dir/pod_describe ];
+then
+    mkdir -p $log_dir/pod_log
+    mkdir -p $log_dir/pod_log_previous
+    mkdir -p $log_dir/pod_describe
+fi
+echo "export logs start"
+for pod in ${array[*]}
+do
+echo "export logs for pod $pod "
+kubectl logs $pod -n ${ns_name} > ./$log_dir/pod_log/$pod.log 2>&1
+kubectl logs $pod --previous -n ${ns_name} > ./$log_dir/pod_log_previous/$pod.log 2>&1 || echo "pod $pod has no previous log"
+kubectl describe pod $pod -n ${ns_name} > ./$log_dir/pod_describe/$pod.log
+done
+echo "export logs done"