Adding basic role to create VMs for testing

Adding a basic role to create virtual machines for testing
Bifrost.

roles/bifrost-create-vm-nodes/README.md

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+bifrost-create-vm-nodes
+=======================
+
+This role creates virtual machines for testing bifrost.
+
+Requirements
+------------
+
+The following packages are required and ensured to be present:
+- libvirt-bin
+- qemu-utils
+- qemu-kvm
+- sgabios
+
+
+Role Variables
+--------------
+
+baremetal_csv_file: "/tmp/baremetal.csv"
+
+Dependencies
+------------
+
+None at this time.
+
+Example Playbook
+----------------
+
+- hosts: localhost
+  connection: local
+  sudo: yes
+  gather_facts: yes
+  roles:
+    - role: bifrost-create-vm-nodes
+
+License
+-------
+
+Copyright (c) 2015 Hewlett-Packard Development Company, L.P.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express orimplied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+Author Information
+------------------
+
+Ironic Developers

roles/bifrost-create-vm-nodes/defaults/main.yml

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+---
+# defaults file for bifrost-create-vm-nodes
+baremetal_csv_file: "/tmp/baremetal.csv"

roles/bifrost-create-vm-nodes/files/create_vm_nodes-for-role.sh

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+#!/bin/bash
+#############################################################################
+# create_nodes.sh - Script to create VM nodes for use with Ironic.
+#
+# PURPOSE
+#    This script can be used to create VM instances without an operating
+#    system and that are ready for netbooting. They are connected to the
+#    bridge named 'brbm' (created if it does not exist).
+#
+# EXAMPLE USAGE
+#    # Use defaults - Create a single node with base name of 'testvm'
+#    sudo create_nodes.sh
+#
+#    # Create 5 nodes
+#    sudo NODECOUNT=5 create_nodes.sh
+#
+#    # Create 3 nodes with base name of 'junk'
+#    sudo NODEBASE=junk NODECOUNT=3 create_nodes.sh
+#
+# THANKS
+#    Thanks to the author(s) of the Ironic supporting code within devstack,
+#    from which all of this is derived.
+#
+# AUTHOR
+#    David Shrewsbury (shrewsbury.dave@gmail.com)
+#############################################################################
+
+
+set -e   # exit immediately on command error
+set -u   # treat unset variables as error when substituting
+
+
+LIBVIRT_CONNECT_URI=${LIBVIRT_CONNECT_URI:-"qemu:///system"}
+export VIRSH_DEFAULT_CONNECT_URI="$LIBVIRT_CONNECT_URI"
+
+# VM specs
+VM_EMULATOR=${VM_EMULATOR:-/usr/bin/qemu-system-x86_64}
+VM_CPU=${VM_CPU:-1}
+VM_RAM=${VM_RAM:-3072}
+VM_DISK=${VM_DISK:-10}
+
+# VM network
+VM_NET_BRIDGE=${VM_NET_BRIDGE:-default}
+
+# VM logging directory
+VM_LOGDIR=/var/log/libvirt/baremetal_logs
+
+#############################################################################
+# FUNCTION
+#   create_node
+#
+# PARAMETERS
+#   $1: Virtual machine name
+#   $2: Number of CPUs for the VM
+#   $3: Amount of RAM for the VM
+#   $4: Disk size (in GB) for the VM
+#   $5: CPU architecture (i386 or amd64)
+#   $6: Network bridge for the VMs
+#   $7: Path to VM emulator
+#   $8: Logging directory for the VMs
+#############################################################################
+function create_node {
+    NAME=$1
+    CPU=$2
+    MEM=$(( 1024 * $3 ))
+    # extra G to allow fuzz for partition table : flavor size and registered size
+    # need to be different to actual size.
+    DISK=$(( $4 + 1))
+
+    case $5 in
+        i386) ARCH='i686' ;;
+        amd64) ARCH='x86_64' ;;
+        *) echo "Unsupported arch $5!" ; exit 1 ;;
+    esac
+
+    BRIDGE=$6
+    EMULATOR=$7
+    LOGDIR=$8
+
+    LIBVIRT_NIC_DRIVER=${LIBVIRT_NIC_DRIVER:-"e1000"}
+    LIBVIRT_STORAGE_POOL=${LIBVIRT_STORAGE_POOL:-"default"}
+    LIBVIRT_CONNECT_URI=${LIBVIRT_CONNECT_URI:-"qemu:///system"}
+
+    if ! virsh pool-list --all | grep -q $LIBVIRT_STORAGE_POOL; then
+        virsh pool-define-as --name $LIBVIRT_STORAGE_POOL dir --target /var/lib/libvirt/images >&2
+        virsh pool-autostart $LIBVIRT_STORAGE_POOL >&2
+        virsh pool-start $LIBVIRT_STORAGE_POOL >&2
+    fi
+
+    pool_state=$(virsh pool-info $LIBVIRT_STORAGE_POOL | grep State | awk '{ print $2 }')
+    if [ "$pool_state" != "running" ] ; then
+      [ ! -d /var/lib/libvirt/images ] && mkdir /var/lib/libvirt/images
+      virsh pool-start $LIBVIRT_STORAGE_POOL >&2
+    fi
+
+    if [ -n "$LOGDIR" ] ; then
+      mkdir -p "$LOGDIR"
+    fi
+
+    PREALLOC=
+    if [ -f /etc/debian_version ]; then
+        PREALLOC="--prealloc-metadata"
+    fi
+
+    VM_LOGGING="$LOGDIR/${NAME}_console.log"
+    VOL_NAME="${NAME}.qcow2"
+
+    if ! virsh list --all | grep -q $NAME; then
+      virsh vol-list --pool $LIBVIRT_STORAGE_POOL | grep -q $VOL_NAME &&
+          virsh vol-delete $VOL_NAME --pool $LIBVIRT_STORAGE_POOL >&2
+      virsh vol-create-as $LIBVIRT_STORAGE_POOL ${VOL_NAME} ${DISK}G --format qcow2 $PREALLOC >&2
+      volume_path=$(virsh vol-path --pool $LIBVIRT_STORAGE_POOL $VOL_NAME)
+      # Pre-touch the VM to set +C, as it can only be set on empty files.
+      touch "$volume_path"
+      chattr +C "$volume_path" || true
+
+      vm_xml="
+<domain type='qemu'>
+  <name>${NAME}</name>
+  <memory unit='KiB'>${MEM}</memory>
+  <vcpu>${CPU}</vcpu>
+  <os>
+    <type arch='${ARCH}' machine='pc-1.0'>hvm</type>
+    <boot dev='network'/>
+    <bootmenu enable='no'/>
+    <bios useserial='yes'/>
+  </os>
+  <features>
+    <acpi/>
+    <apic/>
+    <pae/>
+  </features>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>restart</on_crash>
+  <devices>
+    <emulator>${EMULATOR}</emulator>
+    <disk type='file' device='disk'>
+      <driver name='qemu' type='qcow2' cache='writeback'/>
+      <source file='${volume_path}'/>
+      <target dev='vda' bus='virtio'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
+    </disk>
+    <controller type='ide' index='0'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+    </controller>
+    <interface type='network'>
+      <source network='${BRIDGE}'/>
+    </interface>
+    <input type='mouse' bus='ps2'/>
+    <graphics type='vnc' port='-1' autoport='yes'/>
+    <video>
+      <model type='cirrus' vram='9216' heads='1'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+    </video>
+    <serial type='file'>
+      <source path='${VM_LOGGING}'/>
+      <target port='0'/>
+      <alias name='serial0'/>
+    </serial>
+    <serial type='pty'>
+      <source path='/dev/pts/49'/>
+      <target port='1'/>
+      <alias name='serial1'/>
+    </serial>
+    <console type='file'>
+      <source path='${VM_LOGGING}'/>
+      <target type='serial' port='0'/>
+      <alias name='serial0'/>
+    </console>
+    <memballoon model='virtio'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
+    </memballoon>
+  </devices>
+</domain>
+"
+
+      echo ${vm_xml} > /tmp/vm.xml
+      virsh create /tmp/vm.xml 2>&1 >/dev/null
+      if [ $? != 0 ]
+      then
+         echo "failed to create VM $NAME"
+         rm -f /tmp/vm.xml
+         exit 1
+      fi
+      rm -f /tmp/vm.xml
+
+    fi
+
+    # echo mac
+    local macaddr=`virsh dumpxml $NAME | grep "mac address" | head -1 | cut -d\' -f2`
+
+    echo $macaddr
+}
+
+
+####################
+# Main script code
+####################
+
+NODEBASE=${NODEBASE:-testvm}
+NODECOUNT=${NODECOUNT:-1}
+NODEOUTPUT=${NODEOUTPUT:-"/tmp/baremetal.csv"}
+TEMPFILE=`mktemp`
+
+# must be root
+user=`whoami`
+if [ "$user" != "root" ]
+then
+    echo "Must be run as root. You are $user."
+    exit 1
+fi
+
+
+for (( i=1; i<=${NODECOUNT}; i++ ))
+do
+    name=${NODEBASE}${i}
+    mac=$(create_node $name $VM_CPU $VM_RAM $VM_DISK amd64 $VM_NET_BRIDGE $VM_EMULATOR $VM_LOGDIR)
+
+    printf "$mac,root,undefined,192.168.122.1,$VM_CPU,$VM_RAM,$VM_DISK,flavor,type,a8cb6624-0d9f-c882-affc-046ebb96ec0${i},$name,192.168.122.$((i+1))\n" >>$TEMPFILE
+done
+
+mv "${TEMPFILE}" "${NODEOUTPUT}"

roles/bifrost-create-vm-nodes/handlers/main.yml

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+---
+# handlers file for bifrost-create-vm-nodes

roles/bifrost-create-vm-nodes/meta/main.yml

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+---
+galaxy_info:
+  author: Ironic Developers
+  description: 
+  company: OpenStack
+  license: Apache
+  min_ansible_version: 1.9
+  #
+  # Below are all platforms currently available. Just uncomment
+  # the ones that apply to your role. If you don't see your 
+  # platform on this list, let us know and we'll get it added!
+  #
+  platforms:
+  #- name: EL
+  #  versions:
+  #  - all
+  #  - 5
+  #  - 6
+  #  - 7
+  #- name: GenericUNIX
+  #  versions:
+  #  - all
+  #  - any
+  #- name: Fedora
+  #  versions:
+  #  - all
+  #  - 16
+  #  - 17
+  #  - 18
+  #  - 19
+  #  - 20
+  #- name: SmartOS
+  #  versions:
+  #  - all
+  #  - any
+  #- name: opensuse
+  #  versions:
+  #  - all
+  #  - 12.1
+  #  - 12.2
+  #  - 12.3
+  #  - 13.1
+  #  - 13.2
+  #- name: Amazon
+  #  versions:
+  #  - all
+  #  - 2013.03
+  #  - 2013.09
+  #- name: GenericBSD
+  #  versions:
+  #  - all
+  #  - any
+  #- name: FreeBSD
+  #  versions:
+  #  - all
+  #  - 8.0
+  #  - 8.1
+  #  - 8.2
+  #  - 8.3
+  #  - 8.4
+  #  - 9.0
+  #  - 9.1
+  #  - 9.1
+  #  - 9.2
+  #- name: Ubuntu
+  #  versions:
+  #  - all
+  #  - lucid
+  #  - maverick
+  #  - natty
+  #  - oneiric
+  #  - precise
+  #  - quantal
+  #  - raring
+  #  - saucy
+    - trusty
+  #- name: SLES
+  #  versions:
+  #  - all
+  #  - 10SP3
+  #  - 10SP4
+  #  - 11
+  #  - 11SP1
+  #  - 11SP2
+  #  - 11SP3
+  #- name: GenericLinux
+  #  versions:
+  #  - all
+  #  - any
+  #- name: Debian
+  #  versions:
+  #  - all
+  #  - etch
+  #  - lenny
+  #  - squeeze
+  #  - wheezy
+  #
+  # Below are all categories currently available. Just as with
+  # the platforms above, uncomment those that apply to your role.
+  #
+  categories:
+  - cloud
+  - cloud:openstack
+  #- cloud:gce
+  #- cloud:rax
+  #- clustering
+  #- database
+  #- database:nosql
+  #- database:sql
+  #- development
+  #- monitoring
+  #- networking
+  #- packaging
+  #- system
+  #- web
+dependencies: []

roles/bifrost-create-vm-nodes/tasks/main.yml

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+# Copyright (c) 2015 Hewlett-Packard Development Company, L.P.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# TODO: Consider converting to ansible virt module.
+---
+- name: "Install testing packages"
+  apt: name={{ item }} state=present
+  with_items:
+    - libvirt-bin
+    - qemu-utils
+    - qemu-kvm
+    - sgabios
+- name: "Create virtual machines"
+  script: create_vm_nodes-for-role.sh creates="{{baremetal_csv_file}}"
+  environment:
+    NODEOUTPUT: "{{baremetal_csv_file}}"
+  delegate_to: localhost
+- name: "Setting file permissions such that the baremetal csv file at /tmp/baremetal.csv can be read by the user executing Ansible"
+  file: path="{{baremetal_csv_file}}" owner="{{ansible_env.SUDO_USER}}"
+  when: ansible_env.SUDO_USER is defined and baremetal_csv_file is defined and baremetal_csv_file != ""

roles/bifrost-create-vm-nodes/vars/main.yml

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+---
+# vars file for bifrost-create-vm-nodes