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, 48 insertions, 0 deletions

diff --git a/patches/fuel-library/0001-ceph-Fix-obsolete-XFS-mount-param-delaylog.patch b/patches/fuel-library/0001-ceph-Fix-obsolete-XFS-mount-param-delaylog.patch
new file mode 100644
index 00000000..facde8f2
--- /dev/null
+++ b/patches/fuel-library/0001-ceph-Fix-obsolete-XFS-mount-param-delaylog.patch
@@ -0,0 +1,48 @@
+From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Date: Sun, 27 Mar 2016 20:32:50 +0200
+Subject: [PATCH] ceph: Fix obsolete XFS mount param "delaylog".
+
+According to [1], "delaylog" mount arg is now enforced by default,
+and passing it will lead to mount failure.
+
+Trim "delaylog" from default list of xfs mount args and leave it up to
+ceph-osd.pp to add this obsoleted arg only for targets running a kernel
+older than 4.0.
+
+[1] https://www.kernel.org/doc/Documentation/filesystems/xfs.txt
+---
+ deployment/puppet/osnailyfacter/manifests/ceph/ceph_osd.pp   | 7 +++++++
+ deployment/puppet/osnailyfacter/manifests/globals/globals.pp | 2 +-
+ 2 files changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/deployment/puppet/osnailyfacter/manifests/ceph/ceph_osd.pp b/deployment/puppet/osnailyfacter/manifests/ceph/ceph_osd.pp
+index 2480f18..0957010 100644
+--- a/deployment/puppet/osnailyfacter/manifests/ceph/ceph_osd.pp
++++ b/deployment/puppet/osnailyfacter/manifests/ceph/ceph_osd.pp
+@@ -35,6 +35,13 @@ class osnailyfacter::ceph::ceph_osd {
+   }
+
+   if $ceph_tuning_settings_hash != {} {
++    if versioncmp($::kernelmajversion, '4.0') < 0 {
++      # FIXME(armband): XFS mount opt delaylog is deprecated in kernels >=4.0.
++      $ceph_tuning_settings_hash['osd_mount_options_xfs'] = join([
++        $ceph_tuning_settings_hash['osd_mount_options_xfs'],
++        'delaylog'
++      ], ',')
++    }
+     ceph_conf {
+       'global/debug_default'                    : value => $debug;
+       'global/max_open_files'                   : value => $ceph_tuning_settings_hash['max_open_files'];
+diff --git a/deployment/puppet/osnailyfacter/manifests/globals/globals.pp b/deployment/puppet/osnailyfacter/manifests/globals/globals.pp
+index 854d297..7345d66 100644
+--- a/deployment/puppet/osnailyfacter/manifests/globals/globals.pp
++++ b/deployment/puppet/osnailyfacter/manifests/globals/globals.pp
+@@ -148,7 +148,7 @@ class osnailyfacter::globals::globals {
+     $ceph_tuning_settings = {
+       'max_open_files'                       => pick($storage_tuning_settings['max_open_files'], '131072'),
+       'osd_mkfs_type'                        => pick($storage_tuning_settings['osd_mkfs_type'], 'xfs'),
+-      'osd_mount_options_xfs'                => pick($storage_tuning_settings['osd_mount_options_xfs'], 'rw,relatime,inode64,logbsize=256k,delaylog,allocsize=4M'),
++      'osd_mount_options_xfs'                => pick($storage_tuning_settings['osd_mount_options_xfs'], 'rw,relatime,inode64,logbsize=256k,allocsize=4M'),
+       'osd_op_threads'                       => pick($storage_tuning_settings['osd_op_threads'], '20'),
+       'filestore_queue_max_ops'              => pick($storage_tuning_settings['filestore_queue_max_ops'], '500'),
+       'filestore_queue_committing_max_ops'   => pick($storage_tuning_settings['filestore_queue_committing_max_ops'], '5000'),