Adding ability to configure OVS logging

The patch adds ability to configure variety logging options
for OVS. In order to configure OVS log options the below pillar
sctructure should be used:

  linux:
    network:
      openvswitch:
        enabled: true
        logging:
          enabled: true
          ovsdb:
            console: emer
            syslog: err
            file: info
            facility: local0
          vswitchd:
            console: emer
            syslog: err
            file: info
            facility: local1

Change-Id: I59ef0636447a974215d872259a26beb858495cfb
Related-PROD: PROD-19980

linux/files/openvswitch-switch.default

+{%- from "linux/map.jinja" import network with context %}
+{%- set openvswitch = network.openvswitch %}
+# This is a POSIX shell fragment                -*- sh -*-
+
+# FORCE_COREFILES: If 'yes' then core files will be enabled.
+# FORCE_COREFILES=yes
+
+# OVS_CTL_OPTS: Extra options to pass to ovs-ctl.  This is, for example,
+# a suitable place to specify --ovs-vswitchd-wrapper=valgrind.
+# OVS_CTL_OPTS=
+
+# OVS_VSWITCHD_OPTS: Extra options to pass to ovs-ctl.
+# Options to start Open vSwitch daemon with.
+# Example: '-vconsole:dbg -vsyslog:dbg -vfile:dbg -vFACILITY:clock2'
+# OVS_VSWITCHD_OPTS=
+{%- if openvswitch.get('logging', {}).vswitchd is defined %}
+  {%- set _vswitchd_opts = [] %}
+  {%- for opt in ['console', 'file', 'syslog'] %}
+    {%- if openvswitch.logging.vswitchd.get(opt)  %}
+      {%- do _vswitchd_opts.append("-v"+ opt + ":" + openvswitch.logging.vswitchd.get(opt)) %}
+    {%- endif %}
+  {%- endfor %}
+  {%- if openvswitch.logging.vswitchd.facility is defined  %}
+    {%- do _vswitchd_opts.append("-vFACILITY:" + openvswitch.logging.vswitchd.facility) %}
+  {%- endif %}
+OVS_VSWITCHD_OPTS="{{ ' '.join(_vswitchd_opts) }}"
+{%- endif %}
+
+# OVSDB_OPTS: Extra options to pass to ovs-ctl.
+# Options to start Open vSwitch DB daemon with.
+# Example: '-vconsole:dbg -vsyslog:dbg -vfile:dbg -vFACILITY:clock2'
+# OVSDB_OPTS=
+{%- if openvswitch.get('logging', {}).ovsdb is defined %}
+  {%- set _ovsdb_opts = [] %}
+  {%- for opt in ['console', 'file', 'syslog'] %}
+    {%- if openvswitch.logging.ovsdb.get(opt)  %}
+      {%- do _ovsdb_opts.append("-v" + opt + ":" + openvswitch.logging.ovsdb.get(opt)) %}
+    {%- endif %}
+  {%- endfor %}
+  {%- if openvswitch.logging.ovsdb.facility is defined  %}
+    {%- do _ovsdb_opts.append("-vFACILITY:" + openvswitch.logging.ovsdb.facility) %}
+  {%- endif %}
+OVSDB_OPTS="{{ ' '.join(_ovsdb_opts) }}"
+{%- endif %}

linux/network/init.sls

 {%- if network.systemd|length > 0 %}
 - linux.network.systemd
 {%- endif %}
+{%- if network.openvswitch is defined %}
+- linux.network.openvswitch
+{%- endif %}
 {%- if network.interface|length > 0 %}
 - linux.network.interface
 {%- endif %}

linux/network/openvswitch.sls

+{%- from "linux/map.jinja" import network with context %}
+
+{%- if network.get('openvswitch', {}).get('enabled', False) %}
+
+openvswitch_pkgs:
+  pkg.installed:
+    - pkgs: {{ network.ovs_pkgs }}
+
+/etc/default/openvswitch-switch:
+  file.managed:
+    - source: salt://linux/files/openvswitch-switch.default
+    - template: jinja
+    - require:
+      - pkg: openvswitch_pkgs
+
+openvswitch_switch_service:
+  service.running:
+    - name: openvswitch-switch
+    - enable: true
+    {%- if grains.get('noservices') %}
+    - onlyif: /bin/false
+    {%- endif %}
+    - watch:
+      - file: /etc/default/openvswitch-switch
+
+{%- endif %}