build: Rework patch mechanism for Fuel submodules

While refactoring the patching mechanism, take care of:
- Sync submodule handling with Fuel@OPFNV;
- build: Investigate/prepare for moving patches to Fuel@OPNFV;
- build: Investigate divergent fuel-mirror;
- ISO build: cacheid for Fuel comps should not depend on
  Armband git commit;

CHANGE:
 Rename/shuffle patches while grouping them in "features",
 preparing for upstreaming them to Fuel@OPNFV and beyond.

CHANGE:
 Allow linking patches for better representing the dependency
 between one patch and different features.
 e.g. 0001-Add-arch-to-nailgun-release-and-target-image.patch:
   - part of `multiarch-fuel`, because it extends Fuel;
   - part of `direct-kernel-boot`, as arch is required for that;
   - part of `cross-bootstrap`, target image is arch-dependent;
 NOTE: Patch links are not staged to Fuel@OPNFV, they only serve
 as markers that a specific patch is part of a feature.

CHANGE:
 Kill all Fuel component submodules, now handled in Fuel@OPNFV:
  - fuel-agent
  - fuel-astute
  - fuel-library
  - fuel-mirror
  - fuel-nailgun-agent
  - fuel-web

CHANGE:
 Move armband-fuel-config.mk to armband git root.

FIXME: m1.micro-Increase-profile-RAM-size-to-128MB.patch is NOT
 part of `cross-bootstrap` feature, but patch context says so ...

FIXME: 0001-Add-arm64-deb-repositories-setup.patch is broken at
 `make patches-export` by removing spaces at EOL.

v2 -> v3:
 * Phony patch support (links to show a patch belongs to a feature);
 * Updated README.md
v3 -> v7:
 * Re-export Fuel submodules & plugins patches (update patch context);
 * Update Cavium mail addresses (s/caviumnetworks.com/cavium.com/);
 * Ignore submodule changes;
 * Add armband git repo info to gitinfo_fuel.txt at build time;

Implements: ARMBAND-136
Closes-bug: ARMBAND-95
Closes-bug: ARMBAND-93
Closes-bug: ARMBAND-92

Change-Id: I1a236d9f43b2e6dca22055911f696b43c22b5973
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

1 files changed, 104 insertions, 0 deletions

diff --git a/patches/fuel-library/arm64-bug-fixes/0003-nova-Update-vga-console-defaults-for-armv7-aarch64.patch b/patches/fuel-library/arm64-bug-fixes/0003-nova-Update-vga-console-defaults-for-armv7-aarch64.patch
new file mode 100644
index 00000000..9e9c3d53
--- /dev/null
+++ b/patches/fuel-library/arm64-bug-fixes/0003-nova-Update-vga-console-defaults-for-armv7-aarch64.patch
@@ -0,0 +1,104 @@
+From: Stanislaw Kardach <stanislaw.kardach@cavium.com>
+Date: Tue, 22 Mar 2016 12:05:09 +0100
+Subject: [PATCH] nova: Update vga, console defaults for armv7, aarch64
+
+Nova hardcodes default options for both video=cirrus and console.
+armv7 and aarch64 VMs require video=vga, and since most applications
+use PL011 serial driver for guests, adding console=ttyAMA0 is also
+a nice UX addition.
+---
+ .../openstack/files/nova-libvirt-vga-console.patch | 40 ++++++++++++++++++++++
+ .../openstack_tasks/manifests/roles/compute.pp     | 19 ++++++++++
+ 2 files changed, 59 insertions(+)
+ create mode 100644 deployment/puppet/openstack/files/nova-libvirt-vga-console.patch
+
+diff --git a/deployment/puppet/openstack/files/nova-libvirt-vga-console.patch b/deployment/puppet/openstack/files/nova-libvirt-vga-console.patch
+new file mode 100644
+index 0000000..3594276
+--- /dev/null
++++ b/deployment/puppet/openstack/files/nova-libvirt-vga-console.patch
+@@ -0,0 +1,40 @@
++From: Stanislaw Kardach <stanislaw.kardach@cavium.com>
++Date: Tue, 22 Mar 2016 12:05:09 +0100
++Subject: [PATCH] Update vga, console defaults for armv7 and aarch64
++
++Nova hardcodes default options for both video=cirrus and console.
++armv7 and aarch64 VMs require video=vga, and since most applications
++use PL011 serial driver for guests, adding console=ttyAMA0 is also
++a nice UX addition.
++
++Signed-off-by: Stanislaw Kardach <stanislaw.kardach@cavium.com>
++Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
++---
++
++diff --git a/virt/libvirt/driver.py b/virt/libvirt/driver.py
++index 920a283..751b140 100644
++--- a/virt/libvirt/driver.py
+++++ b/virt/libvirt/driver.py
++@@ -3834,7 +3834,11 @@
++         if virt_type == "xen":
++             guest.os_cmdline = "ro root=%s" % root_device_name
++         else:
+++            guestarch = libvirt_utils.get_arch(image_meta)
++             guest.os_cmdline = ("root=%s %s" % (root_device_name, CONSOLE))
+++            if guestarch in (arch.ARMV7, arch.AARCH64):
+++                # NOTE(armband): ARM v7/v8 use PL011 drv, add ttyAMA0 console
+++                guest.os_cmdline += " console=ttyAMA0"
++             if virt_type == "qemu":
++                 guest.os_cmdline += " no_timer_check"
++         if instance.ramdisk_id:
++@@ -3972,7 +3972,9 @@ class LibvirtDriver(driver.ComputeDriver):
++             video.type = 'xen'
++         elif CONF.libvirt.virt_type == 'parallels':
++             video.type = 'vga'
++-        elif guestarch in (arch.PPC, arch.PPC64, arch.PPC64LE):
+++        elif guestarch in (arch.ARMV7, arch.AARCH64,
+++                           arch.PPC, arch.PPC64, arch.PPC64LE):
+++            # NOTE(armband): Added ARM v7/v8, same as on PPC.
++             # NOTE(ldbragst): PowerKVM doesn't support 'cirrus' be default
++             # so use 'vga' instead when running on Power hardware.
++             video.type = 'vga'
+diff --git a/deployment/puppet/openstack_tasks/manifests/roles/compute.pp b/deployment/puppet/openstack_tasks/manifests/roles/compute.pp
+index b18fa7b..2f0f2a8 100644
+--- a/deployment/puppet/openstack_tasks/manifests/roles/compute.pp
++++ b/deployment/puppet/openstack_tasks/manifests/roles/compute.pp
+@@ -158,6 +158,12 @@ class openstack_tasks::roles::compute {
+
+   include ::nova::params
+
++  if ! defined(Package['patch']) {
++    package { 'patch':
++      ensure => 'present',
++    }
++  }
++
+   case $::osfamily {
+     'RedHat': {
+       # From legacy libvirt.pp
+@@ -290,6 +296,7 @@ class openstack_tasks::roles::compute {
+   }
+
+   $notify_on_state_change = 'vm_and_task_state'
++  $nova_path = '/usr/lib/python2.7/dist-packages/nova'
+
+   class { '::nova':
+     rpc_backend                        => $rpc_backend_real,
+@@ -311,6 +318,18 @@ class openstack_tasks::roles::compute {
+     memcached_servers                  => $memcached_addresses,
+     cinder_catalog_info                => pick($nova_hash_real['cinder_catalog_info'], 'volumev2:cinderv2:internalURL'),
+     rabbit_heartbeat_timeout_threshold => $::os_service_default,
++  } ->
++  # FIXME(armband): Workaround for missing arm defaults in nova libvirt driver
++  file { "${nova_path}/libvirt-vga-console.patch":
++    ensure => "file",
++    source => "puppet:///modules/openstack/nova-libvirt-vga-console.patch",
++  } ->
++  exec { 'nova libvirt driver patch arm defaults':
++    path    => ['/usr/bin'],
++    command => "patch -p1 < ${nova_path}/libvirt-vga-console.patch",
++    unless  => "patch -p1 -R -N --dry-run < ${nova_path}/libvirt-vga-console.patch",
++    cwd     => $nova_path,
++    require => [Package['patch']],
+   }
+
+   class { '::nova::availability_zone':