[FLINK-17857][test] Make K8s e2e tests could run on Mac

Author: wangyang0918

flink-end-to-end-tests/test-scripts/common_kubernetes.sh

@@ -25,7 +25,6 @@ MINIKUBE_START_RETRIES=3
 MINIKUBE_START_BACKOFF=5
 RESULT_HASH="e682ec6622b5e83f2eb614617d5ab2cf"
 MINIKUBE_VERSION="v1.8.2"
-MINIKUBE_PATH="/usr/local/bin/minikube-$MINIKUBE_VERSION"
 
 NON_LINUX_ENV_NOTE="****** Please start/stop minikube manually in non-linux environment. ******"
 
@@ -43,16 +42,18 @@ function setup_kubernetes_for_linux {
         curl -Lo kubectl https://storage.googleapis.com/kubernetes-release/release/$version/bin/linux/$arch/kubectl && \
             chmod +x kubectl && sudo mv kubectl /usr/local/bin/
     fi
-    # Download minikube.
-    if ! [ -x "$(command -v minikube)" ] || ! [[ $(minikube version) =~ "$MINIKUBE_VERSION" ]]; then
-        echo "Installing minikube to $MINIKUBE_PATH ..."
+    # Download minikube when it is not installed beforehand.
+    if ! [ -x "$(command -v minikube)" ]; then
+        echo "Installing minikube $MINIKUBE_VERSION ..."
         curl -Lo minikube https://storage.googleapis.com/minikube/releases/$MINIKUBE_VERSION/minikube-linux-$arch && \
-            chmod +x minikube && sudo mv minikube $MINIKUBE_PATH
+            chmod +x minikube && sudo mv minikube /usr/bin/minikube
     fi
+    # conntrack is required for minikube 1.9 and later
+    sudo apt-get install conntrack
 }
 
 function check_kubernetes_status {
-    $MINIKUBE_PATH status
+    minikube status
     return $?
 }
 
@@ -75,15 +76,15 @@ function start_kubernetes_if_not_running {
         # here.
         # Similarly, the kubelets are marking themself as "low disk space",
         # causing Flink to avoid this node (again, failing the test)
-        sudo CHANGE_MINIKUBE_NONE_USER=true $MINIKUBE_PATH start --vm-driver=none \
+        sudo CHANGE_MINIKUBE_NONE_USER=true minikube start --vm-driver=none \
             --extra-config=kubelet.image-gc-high-threshold=99 \
             --extra-config=kubelet.image-gc-low-threshold=98 \
             --extra-config=kubelet.minimum-container-ttl-duration=120m \
             --extra-config=kubelet.eviction-hard="memory.available<5Mi,nodefs.available<1Mi,imagefs.available<1Mi" \
             --extra-config=kubelet.eviction-soft="memory.available<5Mi,nodefs.available<2Mi,imagefs.available<2Mi" \
             --extra-config=kubelet.eviction-soft-grace-period="memory.available=2h,nodefs.available=2h,imagefs.available=2h"
         # Fix the kubectl context, as it's often stale.
-        $MINIKUBE_PATH update-context
+        minikube update-context
     fi
 
     check_kubernetes_status
@@ -99,23 +100,25 @@ function start_kubernetes {
         # Mount Flink dist into minikube virtual machine because we need to mount hostPath as usrlib
         minikube mount $FLINK_DIR:$FLINK_DIR &
         export minikube_mount_pid=$!
+        echo "The mounting process is running with pid $minikube_mount_pid"
     else
         setup_kubernetes_for_linux
         if ! retry_times ${MINIKUBE_START_RETRIES} ${MINIKUBE_START_BACKOFF} start_kubernetes_if_not_running; then
             echo "Could not start minikube. Aborting..."
             exit 1
         fi
     fi
-    eval $($MINIKUBE_PATH docker-env)
+    eval $(minikube docker-env)
 }
 
 function stop_kubernetes {
     if [[ "${OS_TYPE}" != "linux" ]]; then
         echo "$NON_LINUX_ENV_NOTE"
+        echo "Killing mounting process $minikube_mount_pid"
         kill $minikube_mount_pid 2> /dev/null
     else
         echo "Stopping minikube ..."
-        stop_command="sudo $MINIKUBE_PATH stop"
+        stop_command="sudo minikube stop"
         if ! retry_times ${MINIKUBE_START_RETRIES} ${MINIKUBE_START_BACKOFF} "${stop_command}"; then
             echo "Could not stop minikube. Aborting..."
             exit 1
@@ -178,18 +181,6 @@ function cleanup {
     stop_kubernetes
 }
 
-function setConsoleLogging {
-    cat >> $FLINK_DIR/conf/log4j.properties <<END
-rootLogger.appenderRef.console.ref = ConsoleAppender
-
-# Log all infos to the console
-appender.console.name = ConsoleAppender
-appender.console.type = CONSOLE
-appender.console.layout.type = PatternLayout
-appender.console.layout.pattern = %d{yyyy-MM-dd HH:mm:ss,SSS} %-5p [%t] %-60c %x - %m%n
-END
-}
-
 function get_host_machine_address {
     if [[ "${OS_TYPE}" != "linux" ]]; then
         echo $(minikube ssh "route -n | grep ^0.0.0.0 | awk '{ print \$2 }' | tr -d '[:space:]'")