[salt-formulas] Add & enable armband formula

AArch64 specific formula, mostly tweaking nova conf / installing
virtualization layer prerequisites:
- install qemu-efi;
- install vgabios;
- fix missing link for vgabios binary blob;
- nova conf: cpu_model=cortex-a57 (only for virtual deploys);
- nova conf: virt_type=qemu (only for virtual deploys);
- nova compute conf: virt_type=qemu (only for virtual deploys);
- nova conf: pointer_model=ps2mouse since AArch64 has no USB tablet;

[1] https://github.com/openstack/nova/commit/f0f0953

Change-Id: I40515bdbd941850b103a86d51b347cc8610f5741
Signed-off-by: Guillermo Herrero <Guillermo.Herrero@enea.com>
Signed-off-by: Charalampos Kominos <Charalampos.Kominos@enea.com>
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

6 files changed, 93 insertions, 0 deletions

diff --git a/mcp/salt-formulas/salt-formula-armband/armband/files/nova-libvirt-aarch64-rollup.diff b/mcp/salt-formulas/salt-formula-armband/armband/files/nova-libvirt-aarch64-rollup.diff
new file mode 100644
index 000000000..1ecbf2973
--- /dev/null
+++ b/mcp/salt-formulas/salt-formula-armband/armband/files/nova-libvirt-aarch64-rollup.diff
@@ -0,0 +1,27 @@
+From: Charalampos Kominos <Charalampos.Kominos@enea.com>
+Date: Wed, 2 May 2018 14:20:47 +0200
+Subject: [PATCH] Allow libvirt to honor root device naming
+
+Current behaviour in upstream nova is for rootfs to be in /dev/vda
+which is the default behaviour when using virtio driver. However when
+other devices are requested either by glance or by CLI, nova ignores
+that naming and still tries to attach to vda which fails.
+
+Manually applied in https://review.openstack.org/#/c/214314/
+
+JIRA: ARMBAND-376
+
+Signed-off-by: Charalampos Kominos <charalampos.kominos@enea.com>
+---
+
+--- a/nova/virt/libvirt/driver.py
++++ b/nova/virt/libvirt/driver.py
+@@ -8257,6 +8257,8 @@
+                     "Ignoring supplied device name: %(device_name)s. "
+                     "Libvirt can't honour user-supplied dev names",
+                     {'device_name': bdm.device_name}, instance=instance)
++                if instance.root_device_name == bdm.device_name:
++                   instance.root_device_name = None
+                 bdm.device_name = None
+         block_device_info = driver.get_block_device_info(instance,
+                                                          block_device_mapping)
diff --git a/mcp/salt-formulas/salt-formula-armband/armband/init.sls b/mcp/salt-formulas/salt-formula-armband/armband/init.sls
new file mode 100644
index 000000000..8a8cf2ab1
--- /dev/null
+++ b/mcp/salt-formulas/salt-formula-armband/armband/init.sls
@@ -0,0 +1,7 @@
+include:
+ - armband.qemu_efi
+ - armband.vgabios
+ {%- if salt['pkg.version']('python-nova') %}
+ - armband.nova_libvirt
+ - armband.nova_config
+ {%- endif %}
diff --git a/mcp/salt-formulas/salt-formula-armband/armband/nova_config.sls b/mcp/salt-formulas/salt-formula-armband/armband/nova_config.sls
new file mode 100644
index 000000000..b0e17b718
--- /dev/null
+++ b/mcp/salt-formulas/salt-formula-armband/armband/nova_config.sls
@@ -0,0 +1,37 @@
+{% if grains['cpuarch'] == 'aarch64' %}
+{% if grains['virtual'] == 'kvm' %}
+nova_virt_type:
+  file.replace:
+    - name: "/etc/nova/nova.conf"
+    - pattern: '^virt_type\s*=.*$'
+    - repl: "virt_type = qemu"
+nova_compute_virt_type:
+  file.replace:
+    - name: "/etc/nova/nova-compute.conf"
+    - pattern: '^virt_type\s*=.*$'
+    - repl: "virt_type = qemu"
+{% endif %}
+nova_pointer_model:
+  file.replace:
+    - name: "/etc/nova/nova.conf"
+    - pattern: '^#pointer_model\s*=.*$'
+    - repl: "pointer_model = ps2mouse"
+nova_cpu_mode:
+  file.replace:
+    - name: "/etc/nova/nova.conf"
+    - pattern:  '^cpu_mode\s*=\s*host-passthrough'
+    - repl: "cpu_mode = custom"
+nova_cpu_model:
+  file.replace:
+    - name: "/etc/nova/nova.conf"
+    - pattern: '^#cpu_model\s*=.*$'
+    {% if grains['virtual'] == 'kvm' %}
+    - repl: "cpu_model = cortex-a57"
+    {% else %}
+    - repl: "cpu_model = host"
+    {% endif %}
+restart_nova-compute:
+  cmd:
+    - run
+    - name: "service nova-compute restart"
+{% endif %}
diff --git a/mcp/salt-formulas/salt-formula-armband/armband/nova_libvirt.sls b/mcp/salt-formulas/salt-formula-armband/armband/nova_libvirt.sls
new file mode 100644
index 000000000..9d26e86a4
--- /dev/null
+++ b/mcp/salt-formulas/salt-formula-armband/armband/nova_libvirt.sls
@@ -0,0 +1,9 @@
+{% if grains['cpuarch'] == 'aarch64' %}
+nova-libvirt-aarch64-rollup:
+  file.patch:
+  - name: /usr/lib/python2.7/dist-packages
+  - source: salt://armband/files/nova-libvirt-aarch64-rollup.diff
+  - hash: False
+  - options: '-p1'
+  - unless: 'test -f /var/cache/salt/minion/files/base/armband/files/nova-libvirt-aarch64-rollup.diff && cd /usr/lib/python2.7/dist-packages && patch -p1 -R --dry-run -r - < /var/cache/salt/minion/files/base/armband/files/nova-libvirt-aarch64-rollup.diff'
+{% endif %}
diff --git a/mcp/salt-formulas/salt-formula-armband/armband/qemu_efi.sls b/mcp/salt-formulas/salt-formula-armband/armband/qemu_efi.sls
new file mode 100644
index 000000000..aef17f9a8
--- /dev/null
+++ b/mcp/salt-formulas/salt-formula-armband/armband/qemu_efi.sls
@@ -0,0 +1,4 @@
+{% if grains['cpuarch'] == 'aarch64' %}
+qemu-efi:
+  pkg.installed
+{% endif %}
diff --git a/mcp/salt-formulas/salt-formula-armband/armband/vgabios.sls b/mcp/salt-formulas/salt-formula-armband/armband/vgabios.sls
new file mode 100644
index 000000000..7f004971c
--- /dev/null
+++ b/mcp/salt-formulas/salt-formula-armband/armband/vgabios.sls
@@ -0,0 +1,9 @@
+{% if grains['cpuarch'] == 'aarch64' %}
+vgabios:
+  pkg.installed
+/usr/share/qemu:
+  file.directory
+/usr/share/qemu/vgabios-stdvga.bin:
+  file.symlink:
+    - target: "/usr/share/vgabios/vgabios.bin"
+{% endif %}