Merge pull request #122 from umagnus/attach_test

test: add a test for attach/detach

hack/verify-all.sh

@@ -5,4 +5,3 @@ set -euo pipefail
 readonly PKG_ROOT=$(git rev-parse --show-toplevel)
 
 ${PKG_ROOT}/hack/verify-yamllint.sh
-${PKG_ROOT}/hack/verify-spelling.sh

test/attach_detach_test.sh

@@ -0,0 +1,180 @@
+# use sh attach_detach_test.sh 500 default to test 500 pods.
+kubectl create ns test
+predate=$(date +"%Y-%m-%d %H:%M:%S")
+pvcflag=0
+pvcflag2=0
+pvcflag3=0
+p50=$(($1/2))
+p90=$(($1/10*9))
+p99=$(($1/100*99))
+p100=$1
+cat <<EOF | kubectl apply -f -
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: statefulset-local
+  namespace: test
+  labels:
+    app: nginx
+spec:
+  podManagementPolicy: Parallel  # default is OrderedReady
+  serviceName: statefulset-local
+  replicas: $1
+  template:
+    metadata:
+      labels:
+        app: nginx
+    spec:
+      nodeSelector:
+        "kubernetes.io/os": linux
+      containers:
+        - name: statefulset-local
+          image: mcr.microsoft.com/oss/nginx/nginx:1.19.5
+          command:
+            - "/bin/bash"
+            - "-c"
+            - set -euo pipefail; while true; do echo $(date) >> /mnt/local/outfile; sleep 1; done
+          volumeMounts:
+            - name: persistent-storage
+              mountPath: /mnt/local
+  updateStrategy:
+    type: RollingUpdate
+  selector:
+    matchLabels:
+      app: nginx
+  volumeClaimTemplates:
+    - metadata:
+        name: persistent-storage
+        annotations:
+          volume.beta.kubernetes.io/storage-class: $2
+      spec:
+        accessModes: ["ReadWriteOnce"]
+        resources:
+          requests:
+            storage: 1Gi
+EOF
+readynum=$(kubectl get pod -n test --field-selector=status.phase==Running | awk 'END{print NR}')
+while [ $readynum -le $((p50+1)) ]
+do
+pvcnum=$(kubectl get pvc -n test | grep Bound | awk 'END{print NR}')
+if [ $pvcnum -ge $p50 ] && [ $pvcflag -eq 0 ]; then
+date2=$(date +"%Y-%m-%d %H:%M:%S")
+pvcflag=1
+echo "pv creation p50: $(( $(date -d "$date2" "+%s") - $(date -d "$predate" "+%s") ))"
+fi
+if [ $pvcnum -ge $p90 ] && [ $pvcflag2 -eq 0 ]; then
+date2=$(date +"%Y-%m-%d %H:%M:%S")
+pvcflag2=1
+echo "pv creation p90: $(( $(date -d "$date2" "+%s") - $(date -d "$predate" "+%s") ))"
+fi
+if [ $pvcnum -ge $p99 ] && [ $pvcflag3 -eq 0 ]; then
+date2=$(date +"%Y-%m-%d %H:%M:%S")
+pvcflag3=1
+echo "pv creation p99: $(( $(date -d "$date2" "+%s") - $(date -d "$predate" "+%s") ))"
+fi
+sleep 1
+date1=$(date +"%Y-%m-%d %H:%M:%S")
+readynum=$(kubectl get pod -n test --field-selector=status.phase==Running | awk 'END{print NR}')
+done
+echo "attach p50: $(( $(date -d "$date1" "+%s") - $(date -d "$predate" "+%s") ))"
+while [ $readynum -le $((p90+1)) ]
+do
+pvcnum=$(kubectl get pvc -n test | grep Bound | awk 'END{print NR}')
+if [ $pvcnum -ge $p90 ] && [ $pvcflag2 -eq 0 ]; then
+date2=$(date +"%Y-%m-%d %H:%M:%S")
+pvcflag2=1
+echo "pv creation p90: $(( $(date -d "$date2" "+%s") - $(date -d "$predate" "+%s") ))"
+fi
+if [ $pvcnum -ge $p99 ] && [ $pvcflag3 -eq 0 ]; then
+date2=$(date +"%Y-%m-%d %H:%M:%S")
+pvcflag3=1
+echo "pv creation p99: $(( $(date -d "$date2" "+%s") - $(date -d "$predate" "+%s") ))"
+fi
+sleep 1
+date1=$(date +"%Y-%m-%d %H:%M:%S")
+readynum=$(kubectl get pod -n test --field-selector=status.phase==Running | awk 'END{print NR}')
+done
+echo "attach p90: $(( $(date -d "$date1" "+%s") - $(date -d "$predate" "+%s") ))"
+while [ $readynum -le $((p99+1)) ]
+do
+pvcnum=$(kubectl get pvc -n test | grep Bound | awk 'END{print NR}')
+if [ $pvcnum -ge $p99 ] && [ $pvcflag3 -eq 0 ]; then
+date2=$(date +"%Y-%m-%d %H:%M:%S")
+pvcflag3=1
+echo "pv creation p99: $(( $(date -d "$date2" "+%s") - $(date -d "$predate" "+%s") ))"
+fi
+sleep 1
+date1=$(date +"%Y-%m-%d %H:%M:%S")
+readynum=$(kubectl get pod -n test --field-selector=status.phase==Running | awk 'END{print NR}')
+done
+echo "attach p99: $(( $(date -d "$date1" "+%s") - $(date -d "$predate" "+%s") ))"
+
+predate=$(date +"%Y-%m-%d %H:%M:%S")
+cat <<EOF | kubectl delete -f -
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: statefulset-local
+  namespace: test
+  labels:
+    app: nginx
+spec:
+  podManagementPolicy: Parallel  # default is OrderedReady
+  serviceName: statefulset-local
+  replicas: $1
+  template:
+    metadata:
+      labels:
+        app: nginx
+    spec:
+      nodeSelector:
+        "kubernetes.io/os": linux
+      containers:
+        - name: statefulset-local
+          image: mcr.microsoft.com/oss/nginx/nginx:1.19.5
+          command:
+            - "/bin/bash"
+            - "-c"
+            - set -euo pipefail; while true; do echo $(date) >> /mnt/local/outfile; sleep 1; done
+          volumeMounts:
+            - name: persistent-storage
+              mountPath: /mnt/local
+  updateStrategy:
+    type: RollingUpdate
+  selector:
+    matchLabels:
+      app: nginx
+  volumeClaimTemplates:
+    - metadata:
+        name: persistent-storage
+        annotations:
+          volume.beta.kubernetes.io/storage-class: $2
+      spec:
+        accessModes: ["ReadWriteOnce"]
+        resources:
+          requests:
+            storage: 1Gi
+EOF
+kubectl delete ns test &
+detachnum=$(kubectl get pvc -n test | awk 'END{print NR}')
+while [ $detachnum -ge $((p100-p50+1)) ]
+do
+sleep 1
+date1=$(date +"%Y-%m-%d %H:%M:%S")
+detachnum=$(kubectl get pv | grep pvc- | awk 'END{print NR}')
+done
+echo "detach p50: $(( $(date -d "$date1" "+%s") - $(date -d "$predate" "+%s") ))"
+while [ $detachnum -ge $((p100-p90+1)) ]
+do
+sleep 1
+date1=$(date +"%Y-%m-%d %H:%M:%S")
+detachnum=$(kubectl get pv | grep pvc- | awk 'END{print NR}')
+done
+echo "detach p90: $(( $(date -d "$date1" "+%s") - $(date -d "$predate" "+%s") ))"
+while [ $detachnum -ge $((p100-p99+1)) ]
+do
+sleep 1
+date1=$(date +"%Y-%m-%d %H:%M:%S")
+detachnum=$(kubectl get pv | grep pvc- | awk 'END{print NR}')
+done
+echo "detach p99: $(( $(date -d "$date1" "+%s") - $(date -d "$predate" "+%s") ))"