Add uninstallation scripts

[iec.git] / src / foundation / scripts / uninstall.sh

diff --git a/src/foundation/scripts/uninstall.sh b/src/foundation/scripts/uninstall.sh
new file mode 100644 (file)
index 0000000..550cc5c
--- /dev/null
+++ b/src/foundation/scripts/uninstall.sh
@@ -0,0 +1,100 @@
+#!/bin/bash
+set -x
+#Uninstall the k8s-master & k8s-worker node from Mgnt node
+#
+
+# Get OS version
+if grep -q -e rhel /etc/*-release; then
+  OS_ID_LIKE=${1:-rhel}
+elif grep -q -e debian /etc/*-release; then
+  OS_ID_LIKE=${1:-debian}
+fi
+
+#
+# Destroy k8s.
+#
+Destroy_k8s(){
+
+  KUBEADM_DESTROY_CMD="kubeadm reset -f"
+
+  for worker in "${K8S_WORKER_GROUP[@]}"
+  do
+    ip_addr="$(cut -d',' -f1 <<<${worker})"
+    passwd="$(cut -d',' -f2 <<<${worker})"
+    echo "Destroy k8s on ${ip_addr}. password:${passwd}"
+
+    sshpass -p ${passwd} ssh -o StrictHostKeyChecking=no ${HOST_USER}@${ip_addr} ${KUBEADM_DESTROY_CMD}
+    sleep 2
+  done
+
+  #Destroy master k8s env
+  sshpass -p ${K8S_MASTERPW} ssh -o StrictHostKeyChecking=no ${HOST_USER}@${K8S_MASTER_IP} ${KUBEADM_DESTROY_CMD}
+}
+
+
+#
+# Uninstall software.
+#
+Uninstall () {
+  OS_VERSION=$1
+  case ${OS_VERSION:-} in
+  debian)
+    UNINSTALL_CMD="sudo apt purge -y kubernetes-cni kubeadm kubectl kubelet kube* docker-ce --allow-change-held-packages &&\
+              sudo apt -y autoremove"
+    ;;
+  rhel)
+    UNINSTALL_CMD="sudo yum remove -y kubeadm kubectl kubelet kubernetes-cni kube* docker-ce &&\
+               sudo yum -y autoremove"
+    ;;
+  *)
+    echo 'Unsupported distribution detected!'
+    exit 1
+    ;;
+  esac
+
+  for worker in "${K8S_WORKER_GROUP[@]}"
+  do
+    ip_addr="$(cut -d',' -f1 <<<${worker})"
+    passwd="$(cut -d',' -f2 <<<${worker})"
+    echo "Destroy k8s on ${ip_addr}. password:${passwd}"
+
+    sshpass -p ${passwd} ssh -o StrictHostKeyChecking=no ${HOST_USER}@${ip_addr} "${UNINSTALL_CMD}"
+    sleep 2
+  done
+
+  #master k8s env
+  sshpass -p ${K8S_MASTERPW} ssh -o StrictHostKeyChecking=no ${HOST_USER}@${K8S_MASTER_IP} "${UNINSTALL_CMD}"
+}
+
+
+#
+# Recover system configuration.
+#
+Recover_conf(){
+
+  REC_CMD="sudo swapon -a"
+
+  for worker in "${K8S_WORKER_GROUP[@]}"
+  do
+    ip_addr="$(cut -d',' -f1 <<<${worker})"
+    passwd="$(cut -d',' -f2 <<<${worker})"
+    echo "Destroy k8s on ${ip_addr}. password:${passwd}"
+
+    sshpass -p ${passwd} ssh -o StrictHostKeyChecking=no ${HOST_USER}@${ip_addr} "${REC_CMD}"
+    sleep 2
+  done
+
+  #master k8s env
+  sshpass -p ${K8S_MASTERPW} ssh -o StrictHostKeyChecking=no ${HOST_USER}@${K8S_MASTER_IP} "${REC_CMD}"
+}
+
+# Read the configuration file
+source config
+
+Destroy_k8s ${OS_ID_LIKE}
+
+Uninstall ${OS_ID_LIKE}
+sleep 10
+
+Recover_conf ${OS_ID_LIKE}
+sleep 20