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, 28 insertions, 0 deletions

diff --git a/patches/opnfv-fuel/0006-build-docker-Use-host-s-network-stack.patch b/patches/opnfv-fuel/0006-build-docker-Use-host-s-network-stack.patch
new file mode 100644
index 00000000..69b0e82f
--- /dev/null
+++ b/patches/opnfv-fuel/0006-build-docker-Use-host-s-network-stack.patch
@@ -0,0 +1,28 @@
+From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Date: Mon, 29 Aug 2016 22:58:49 +0200
+Subject: [PATCH] build: docker: Use host's /etc/hosts
+
+The original motivation was pointing to local mirrors via host's
+"/etc/hosts", for which an alternative solution tested was
+"--net=host" (see [1] for full description), but lead to wierd
+loss of connectivity after a few builds.
+
+[1] https://docs.docker.com/v1.8/articles/networking/
+
+Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+---
+ build/docker/runcontext | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/build/docker/runcontext b/build/docker/runcontext
+index 07b0dc1..b0d6d37 100755
+--- a/build/docker/runcontext
++++ b/build/docker/runcontext
+@@ -121,6 +121,7 @@ RUN_CONTEXT_OPT="--cidfile $CID_FILE --privileged=true --rm --net=host \
+     -e MIRROR_MOS_UBUNTU -e MIRROR_MOS_UBUNTU_ROOT -e MIRROR_FUEL \
+     -e LATEST_TARGET_UBUNTU -e UBUNTU_ARCH -e OPNFV_GIT_SHA -e ARMBAND_BASE \
+     -u $USER_ID:$GROUP_ID -w $PWD \
++    -v /etc/hosts:/etc/hosts \
+     -v $GITROOT:$GITROOT -v /sys/fs/cgroup:/sys/fs/cgroup:ro $CACHEMOUNT"
+
+ # Passing "debug" puts up an interactive bash shell