[akraino] Add IEC K8-calico scenarios

- bump Pharos git submodule to allow PODs with fewer nodes;
- add `k8-calico-iec-noha` scenario definition for Akraino
  IEC basic configuration;
- add `k8-calico-iec-vcp-noha` scenario definition for Akraino
  IEC nested (virtualized control plane) configuration;
- add `akraino_iec` state, which will leverage the Akraino IEC
  bootstrap scripts from [1];
- replace system.reboot salt call with cmd.run 'reboot' as it's more
  reliable;
- use kernel 4.15 for AArch64 K8 IEC scenarios;

NOTE: These scenarios will not be released in OPNFV since don't rely
on Salt formulas but instead of Akraino IEC scripts to install K8s.

[1] https://gerrit.akraino.org/r/#/q/project:iec

Change-Id: I4e538e0563d724cd3fd5c4d462ddc22d0c739402
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/mcp/reclass/classes/cluster/mcp-common-ha/openstack_compute_pdf.yml.j2 b/mcp/reclass/classes/cluster/mcp-common-ha/openstack_compute_pdf.yml.j2
index de0177a04..0b1c5bbf2 100644
--- a/mcp/reclass/classes/cluster/mcp-common-ha/openstack_compute_pdf.yml.j2
+++ b/mcp/reclass/classes/cluster/mcp-common-ha/openstack_compute_pdf.yml.j2
@@ -15,6 +15,7 @@
 parameters:
   _param:
     # Should later be determined via PDF/IDF, AArch64 has ESP on /dev/sda1
+{%- if nm.cmp001.idx < conf.nodes | length %}
 {%- if conf.nodes[nm.cmp001.idx].node.type == 'virtual' %}
     ~cinder_lvm_devices: ['/dev/vdb']
 {%- elif conf.nodes[nm.cmp001.idx].node.arch == 'aarch64' or
@@ -23,6 +24,7 @@ parameters:
 {%- else %}
     ~cinder_lvm_devices: ['/dev/sda1']
 {%- endif %}
+{%- endif %}
   linux:
     network:
       bridge: openvswitch