Adding the shell script for Virtualbox

Signed-off-by: Lalatendu Mohanty <[email protected]>

virtualbox/minishift_virtualbox.sh

@@ -0,0 +1,242 @@
+#!/bin/bash
+
+set +x
+
+prerequisites()
+{
+    # Check if VirtualBox is installed
+    if [[ $(vboxmanage --version | head -c1 | wc -c) -eq 0 ]]; then
+       echo "Virtualbox is not installed on this system"
+       exit 1
+    fi
+
+    # Check if port 53 is in use already
+    if [[ $(lsof -i :53 | head -c1 | wc -c) -ne 0 ]]; then
+       echo "Following Process is running on the port 53 check with 'lsof -i :53'"
+       exit 1
+    fi
+
+    # Check if minishift running
+    if pgrep -x "minishift" > /dev/null
+    then
+        echo "Minishift is running which create issue with coredns"
+        echo "Stop the minishift or delete"
+        exit 1
+    fi
+
+    # Check if minikube running
+    if pgrep -x "minikube" > /dev/null
+    then
+        echo "Minikube is running which create issue with coredns"
+        echo "Stop the minikube or delete"
+        exit 1
+    fi
+
+    # Backup original Corefile and test1-api file.
+    cp Corefile Corefile_bak
+    cp test1-api test1-api_bak
+
+    # Copy the disk image in the Virtualbox Folder
+    mkdir -p  ~/VirtualBox\ VMs/master
+    mkdir -p  ~/VirtualBox\ VMs/worker
+    rm ~/VirtualBox\ VMs/master/test1-master-0.vmdk
+    rm ~/VirtualBox\ VMs/worker/test1-worker-0-98nsr.vmdk
+    echo "Copying the vmdk files to ~/VirtualBox\ VMs/ location ..."
+    cp test1-master-0.vmdk ~/VirtualBox\ VMs/master
+    cp test1-worker-0-98nsr.vmdk ~/VirtualBox\ VMs/worker
+}
+
+cluster_create()
+{    
+    # Create the hostonly address if not exit
+    if [[ $(VBoxManage list hostonlyifs | head -c1 | wc -c) -eq 0 ]]; then
+       VBoxManage hostonlyif create
+    fi
+
+    # Master configuration
+    VBoxManage createvm --name master --ostype Fedora_64 --register 
+    VBoxManage modifyvm master --cpus 2 --memory 8590 --vram 16
+    VBoxManage modifyvm master --nic1 hostonly
+    VBoxManage modifyvm master --hostonlyadapter1 vboxnet0
+    VBoxManage modifyvm master --nic2 nat
+    VBoxManage modifyvm master --macaddress1 2e393f5e0176 
+    VBoxManage storagectl master --name "SATA Controller" --add sata --bootable on --portcount 1 
+    VBoxManage storageattach master  --storagectl "SATA Controller" --port 0 --device 0 --type hdd --medium ~/VirtualBox\ VMs/master/test1-master-0.vmdk
+
+    # Worker configuration
+    VBoxManage createvm --name worker --ostype Fedora_64 --register
+    VBoxManage modifyvm worker --cpus 2 --memory 2096 --vram 16
+    VBoxManage modifyvm worker --nic1 hostonly
+    VBoxManage modifyvm worker --hostonlyadapter1 vboxnet0
+    VBoxManage modifyvm worker --nic2 nat
+    VBoxManage modifyvm worker --macaddress1 06dc5cfa5497
+    VBoxManage storagectl worker --name "SATA Controller" --add sata --bootable on --portcount 1
+    VBoxManage storageattach worker  --storagectl "SATA Controller" --port 0 --device 0 --type hdd --medium ~/VirtualBox\ VMs/worker/test1-worker-0-98nsr.vmdk
+
+    hostonlyip=$(VBoxManage list hostonlyifs | grep IPAddress | head -1 | awk '{print $2}')
+
+    # Coredns set forward for domain
+    nameserver=$(nslookup google.com | head -1 | awk '{print $2}')
+    sed -i '' "s/mynameserver/$nameserver/g" Corefile
+
+    echo "Adding tt.testing to /etc/resolver, It will ask for sudo password"
+    # Add nameserver to resolv.conf which VM actually take
+    echo "search tt.testing" | sudo tee /etc/resolv.conf
+    echo "nameserver $hostonlyip" | sudo tee -a /etc/resolv.conf
+
+    # Coredns ip add to resolver (tt.testing)
+    sudo mkdir -p /etc/resolver
+    echo "nameserver $hostonlyip" | sudo tee /etc/resolver/tt.testing
+}
+
+cluster_start()
+{
+    check_cluster
+    VBoxManage startvm master --type headless
+    VBoxManage startvm worker --type headless
+    if ! pgrep -x "coredns" > /dev/null 
+    then
+        modify_corefile
+        coredns_start
+    fi
+}
+
+modify_corefile()
+{
+    # Get the IP of the master node using arp
+    while true; do
+        IFS=$'\n'; for line in $(arp -i vboxnet0 -a); do 
+          echo $line
+          IFS=' ' read -a array <<< $line
+          masterIp=$(echo "${array[1]}"|tr "(" " "|tr ")" " ")
+
+          if [ "2e:39:3f:5e:1:76" = "${array[3]}" ]; then
+            echo "Master IP address is $masterIp"
+            break 2
+          fi
+        done
+    done
+
+    # Get the IP of the master node
+    while true; do
+        IFS=$'\n'; for line in $(arp -i vboxnet0 -a); do 
+          echo $line
+          IFS=' ' read -a array <<< $line
+          workerIp=$(echo "${array[1]}"|tr "(" " "|tr ")" " ")
+
+          if [ "6:dc:5c:fa:54:97" = "${array[3]}" ]; then
+            echo "Worker IP address is $workerIp"
+            break 2
+          fi
+        done
+    done
+
+
+    # Run Coredns after editing tt.testing file.
+    echo "test1-api     IN      A       $masterIp" | tee -a test1-api
+    echo "test1-etcd-0     IN      A    $masterIp" | tee -a test1-api
+    echo "test1-master-0     IN      A    $masterIp" | tee -a test1-api
+    echo "test1-worker-0-98nsr     IN      A    $workerIp" | tee -a test1-api
+}
+
+cluster_stop()
+{
+    check_cluster
+    VBoxManage controlvm master poweroff
+    VBoxManage controlvm worker poweroff
+}
+
+check_cluster()
+{
+    VBoxManage list vms | grep -q  master
+    if [ $? -ne 0 ]; then
+         echo "Cluster is not present"
+         usage
+         exit 1
+    fi
+}
+
+restart_network()
+{
+   echo "Restarting Network Setup ..."
+   saveIFS="$IFS"
+   IFS=$'\n'
+   services=( $(networksetup -listallnetworkservices | sed '/An asterisk ([*]) denotes that a network service is disabled./d; s/^[*]//') )
+   IFS="$saveIFS"
+
+   for i in "${services[@]}"; do
+        # This sleep is required to make sure we provide enough time to settle the network
+        sleep 2
+	networksetup -setnetworkserviceenabled "$i" off && networksetup -setnetworkserviceenabled "$i" on
+   done
+}
+
+cluster_delete()
+{
+    check_cluster
+    cluster_stop
+    VBoxManage unregistervm master --delete
+    VBoxManage unregistervm worker --delete
+    restart_network
+    coredns_stop
+    if [ -f Corefile_bak ]; then
+	rm Corefile && mv Corefile_bak Corefile
+    fi
+    if [ -f test1-api_bak ]; then
+	rm test1-api && mv test1-api_bak test1-api
+    fi
+}
+
+coredns_start()
+{
+    echo "Starting Coredns as backgroud process"
+    echo "Coredns logs are in /tmp/coredns.log file"
+    ./coredns > /tmp/coredns.log 2>&1 &
+}
+
+coredns_stop()
+{
+    echo "Stopping Coredns process"
+    pkill coredns
+}
+
+
+if [ "$#" -ne 1 ]; then
+    usage
+    exit 0
+fi
+
+usage()
+{
+    usage="$(basename "$0") [[create | start | stop | delete] | [-h]]
+where:
+    create - Create the cluster resources
+    start  - Start the cluster
+    stop   - Stop the cluster
+    delete - Delete the cluster
+    -h     - Usage message
+    "
+
+    echo "$usage"
+
+}
+
+while [ "$1" != "" ]; do
+    case $1 in
+        create )           prerequisites
+                           cluster_create
+                           ;;
+        start )            cluster_start
+                           ;;
+        stop )             cluster_stop
+                           ;;
+        delete )           cluster_delete
+                           ;;
+        -h | --help )      usage
+                           exit
+                           ;;
+        * )                usage
+                           exit 1
+    esac
+    shift
+done