Use ONAP core deployment type override in minimal Vagrant environment

Core deployment type is a subset of previously used minimal override to
make ONAP deployment even lighter on resources.

It has been merged in OOM as: d7c495eeeaa3c24d355b9214bc7d0e59be9dd70e
(Change-Id: Ibaec41f088f11f7fb4e7c476f742d12d29c5740b).

This patch also updates documentation on resources required by this
setup and adds example usage of Operator's tools.

Issue-ID: ONAPARC-551
Change-Id: Ifdb1d158311ba3ed0b5cf407d07ce028d1a0162f
Signed-off-by: Pawel Wieczorek <p.wieczorek2@samsung.com>
diff --git a/bootstrap/vagrant-minimal-onap/Vagrantfile b/bootstrap/vagrant-minimal-onap/Vagrantfile
index 3ffa6a3..5f9a725 100644
--- a/bootstrap/vagrant-minimal-onap/Vagrantfile
+++ b/bootstrap/vagrant-minimal-onap/Vagrantfile
@@ -16,9 +16,9 @@
 
 vm_memory = 1 * 1024
 vm_memory_os = 4 * 1024
-vm_memory_onap = 20 * 1024
+vm_memory_onap = 64 * 1024
 vm_cpu = 1
-vm_cpus = 4
+vm_cpus = 8
 vm_box = "generic/ubuntu1804"
 vm_disk = 32
 vm_disk_onap = 64
@@ -178,7 +178,7 @@
 SCRIPT
 
 $deploy_onap = <<-SCRIPT
-  OVERRIDE="${1:-${HOME}/oom/kubernetes/onap/resources/environments/minimal-onap.yaml}"
+  OVERRIDE="${1:-${HOME}/oom/kubernetes/onap/resources/environments/core-onap.yaml}"
 
   ENV="${2:-#{os_env}}"
   export $(cat "$ENV" | xargs)
@@ -194,7 +194,7 @@
 
   export KUBECONFIG="${HOME}/.kube/config.onap"
 
-  helm deploy minimal local/onap --namespace onap -f "$OVERRIDE" --verbose --timeout 900
+  helm deploy core local/onap --namespace onap -f "$OVERRIDE" --verbose --timeout 900
 SCRIPT
 
 Vagrant.configure('2') do |config|