[iec] Add basic CentOS support (virtual only)

- reclass: iec: CentOS compatibility changes:
  * drop `proto: static` in favor of letting the linux formula set
    the appropiate default based on target OS;
  * replace `proto: manual` with `proto: none` on RHEL systems;
  * system.file: Avoid using non-existing `shadow` group for system
    files;
  * load br_netfilter kernel module to avoid `linux.network` state
    failures;
  * disable `at`, `cron` due to incomplete defaults in
    salt-formula-linux (since we don't use them on iec nodes anyway);
- jumpserver/VCP VMs: centos: enable predictable interface names:
  * CentOS cloud image defaults to old 'eth' naming scheme;
  * add necessary kernel boot options via linux state;
  * cleanup auto-generated udev rules for old eth interface names;
- salt-formula-linux: network: RHEL: Set bridge for member interfaces
  * Find the bridge containing the interface being currently
    configured (if any) and pass it to the `network.managed` Salt call;
- deploy.sh: Add new deploy argument `-o` for specifying the operating
  system to preinstall on jumpserver and/or VCP VMs;
  * defaults to 'ubuntu1604';
  * only iec scenarios will also support 'centos' for now;
- user-data: minor tweaks for CentOS compatability:
  * use `systemctl` instead of `service` utility;
  * explicitly enable `salt-minion` service, since it defaults to
    disabled on RHEL systems;
  * explicitly call `ldconfig` to work around stale cache on RHEL,
    preventing `salt-minion` from using OpenSSL library;
- states: virtual_init: Skip non-existing sysctl options on CentOS:
  * CentOS currently uses a 3.x kernel which lacks certain sysctl
    options that were only introduced in 4.x kernels, so skip them;
- state: akraino_iec: Add centos support:
  * move iec repo to `/var/lib/akraino/iec` on both Salt Master and
    cluster nodes;
- scenario defaults: Add CentOS configuration:
  * OS-dependent configuration split;
  * CentOS base image, default packages etc.;
- AArch64 deploy requirements: Add `xz` dependency
  * CentOS AArch64 cloud image is archived using xz, install xz tools
    for decompression;
- xdf_data: Make yaml parsing OS agnostic:
  * rename `apt` to `repo` where appropiate;
  * OS-dependent configuration parsing;
- lib_jump_deploy: CentOS handling changes:
  * skip filesystem resize of cloud image for CentOS;
  * add repo handling, package intallation/removal handling for CentOS;
  * unxz base image if necessary (CentOS AArch64 cloud image);

Change-Id: Ic3538bacd53198701ff4ef77db62218eabc662e7
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/mcp/patches/salt-formula-linux/0005-network-RHEL-Set-bridge-for-member-interfaces.patch b/mcp/patches/salt-formula-linux/0005-network-RHEL-Set-bridge-for-member-interfaces.patch
new file mode 100644
index 000000000..67004601c
--- /dev/null
+++ b/mcp/patches/salt-formula-linux/0005-network-RHEL-Set-bridge-for-member-interfaces.patch
@@ -0,0 +1,44 @@
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+: Copyright (c) 2019 Mirantis Inc., Enea AB and others.
+:
+: All rights reserved. This program and the accompanying materials
+: are made available under the terms of the Apache License, Version 2.0
+: which accompanies this distribution, and is available at
+: http://www.apache.org/licenses/LICENSE-2.0
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Date: Tue, 11 Jun 2019 03:57:29 +0200
+Subject: [PATCH] network: RHEL: Set bridge for member interfaces
+
+For RHEL, bridge member interfaces need to be passed down the
+bridge name, so lookup all bridges, find the one containing the
+current interface (if any) and use it when calling
+`network.managed`.
+
+Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+---
+ linux/network/interface.sls | 11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+diff --git a/linux/network/interface.sls b/linux/network/interface.sls
+index 11db5be..ccac6d7 100644
+--- a/linux/network/interface.sls
++++ b/linux/network/interface.sls
+@@ -303,6 +303,17 @@ linux_interface_{{ interface_name }}:
+     - cmd: ovs_port_up_{{ network }}
+     {%- endfor %}
+   {%- endif %}
++  {%- if grains.os_family == 'RedHat' %}
++    {%- set br_todo = [] %}
++    {%- for br_name, br_info in network.interface.items() %}
++      {%- if br_info.type == 'bridge' and interface_name in br_info.get('use_interfaces', []) %}
++        {%- do br_todo.append(br_info.get('name', br_name)) %}
++      {%- endif %}
++    {%- endfor %}
++    {%- if br_todo %}
++  - bridge: {{ br_todo | first }}
++    {%- endif %}
++  {%- endif %}
+   {%- if interface.type == 'bridge' %}
+   - bridge: {{ interface_name }}
+   - delay: 0