reclass: Multiarch support for arch specific param

Introduce a simple mechanism that simulates an 'if-arch-then' cond
for reclass models:
- add new <all-mcp-ocata-common> class hierarchy;
- at runtime (via <salt.sh>) make 'all-mcp-ocata-common.arch' point
  to 'all-mcp-ocata-common.$(uname -i)' dynamically;
- inherit new 'arch' class in all cluster models;
- factor out current x86_64 default for "salt_control_xenial_image";
- add AArch64 default for param "salt_control_xenial_image";

Change-Id: I3b239b28d0fd1cc2ced8579e2e93b764eb71ffc3
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

3 files changed, 8 insertions, 0 deletions

diff --git a/mcp/reclass/classes/cluster/all-mcp-ocata-common/aarch64/init.yml b/mcp/reclass/classes/cluster/all-mcp-ocata-common/aarch64/init.yml
new file mode 100644
index 000000000..05aa5d237
--- /dev/null
+++ b/mcp/reclass/classes/cluster/all-mcp-ocata-common/aarch64/init.yml
@@ -0,0 +1,3 @@
+parameters:
+  _param:
+    salt_control_xenial_image: https://cloud-images.ubuntu.com/xenial/current/xenial-server-cloudimg-arm64-uefi1.img
diff --git a/mcp/reclass/classes/cluster/all-mcp-ocata-common/init.yml b/mcp/reclass/classes/cluster/all-mcp-ocata-common/init.yml
new file mode 100644
index 000000000..1139b9d72
--- /dev/null
+++ b/mcp/reclass/classes/cluster/all-mcp-ocata-common/init.yml
@@ -0,0 +1,2 @@
+classes:
+- cluster.all-mcp-ocata-common.arch
diff --git a/mcp/reclass/classes/cluster/all-mcp-ocata-common/x86_64/init.yml b/mcp/reclass/classes/cluster/all-mcp-ocata-common/x86_64/init.yml
new file mode 100644
index 000000000..87865fd4e
--- /dev/null
+++ b/mcp/reclass/classes/cluster/all-mcp-ocata-common/x86_64/init.yml
@@ -0,0 +1,3 @@
+parameters:
+  _param:
+    salt_control_xenial_image: http://apt.mirantis.com/images/ubuntu-16-04-x64-latest.qcow2