More RAM for basedisk build

Our default (512 MB RAM) is no longer sufficient to build the basedisk.
We have seen multiple out-of-memory errors. Building the cluster takes a
lot more RAM anyway, so we might as well double the RAM allocation for
the basedisk build.

This changeset is a minimal problem fix which also shows that the code
is inconsistent. A refactoring patch will follow later.

Change-Id: I55f52c50e4cde8583b8fea7a0942bfd9e8939f72

labs/osbash/config/config.base

@@ -2,3 +2,6 @@
 
 # Port forwarding
 VM_SSH_PORT=2229
+
+# Our default RAM size (512 MB) is not sufficient for installation
+VM_MEM=1024

labs/osbash/lib/osbash/kvm-install_base.sh

@@ -58,7 +58,7 @@ function vm_install_base {
         --cdrom "$INSTALL_ISO" \
         --name $vm_name \
         --os-type linux \
-        --ram "${VM_BASE_MEM:=512}" \
+        --ram "${VM_BASE_MEM:=1024}" \
         --vcpus 1 \
         --virt-type kvm \
         $console_type \

labs/osbash/lib/osbash/virtualbox-install_base.sh

@@ -14,7 +14,7 @@ function vm_install_base {
     ${WBATCH:-:} wbatch_delete_disk "$base_build_disk"
 
     vm_create "$vm_name"
-    vm_mem "$vm_name" "${VM_BASE_MEM:=512}"
+    vm_mem "$vm_name" "${VM_BASE_MEM:=1024}"
 
     if [ -z "${INSTALL_ISO-}" ]; then
 

labs/stacktrain/kvm/install_base.py

@@ -60,7 +60,7 @@ def vm_install_base():
     libvirt_connect_uri = "qemu:///system"
     virt_install_call = ["sudo", "virt-install",
                          "--connect={}".format(libvirt_connect_uri)]
-    vm_base_mem = 512
+    vm_base_mem = 1024
 
     call_args = virt_install_call
     call_args.extend(["--name", vm_name])