To run tapsplit we use plone.recipe.command with both command and
update-command set to `tapsplit ...`. But tapsplit, when run, currently fully
recreates and reinitializes subtap interfaces, which leads to interfering with
running enb because subtap interfaces, that enb started to use, are removed.
This is not desirable behaviour.

What we need:

1) create subtap interfaces only once and keep them stable
2) until configuration changes which should lead to
   * subtaps recreated, and
   * enb restarted
3) if subtap interfaces disappear for any reason, recreate it

-> Rework tapsplit to keep its promise, that it "brings tap interface into state
   with several children interfaces each covering part of original interface
   address space", without recreating those children on every run and instead
   doing any action only if their state is not what is desired.

In other words those interfaces now are only created when they do not exist
before. Addresses and routes are added only if they are not there before
tapsplit is run, etc.

After the patch the first run of tapsplit to split by 2 looks like

    # ./pythonwitheggs ru/tapsplit slaptap16 2
    slaptap16: split 2401:5180:0:66:a200::/71 by 2
    preserve         2401:5180:0:66:a200::/73
    -> slaptap16-1   2401:5180:0:66:a280::/73
     # ip tuntap add dev slaptap16-1 mode tap user slapuser16
     # ip link set slaptap16-1 up
     # ip addr add 2401:5180:0:66:a280::/73 dev slaptap16-1 noprefixroute
     # ip route add 2401:5180:0:66:a280::1 dev slaptap16-1
     # ip route add 2401:5180:0:66:a280::/73 dev slaptap16-1 via 2401:5180:0:66:a280::1
    -> slaptap16-2   2401:5180:0:66:a300::/73
     # ip tuntap add dev slaptap16-2 mode tap user slapuser16
     # ip link set slaptap16-2 up
     # ip addr add 2401:5180:0:66:a300::/73 dev slaptap16-2 noprefixroute
     # ip route add 2401:5180:0:66:a300::1 dev slaptap16-2
     # ip route add 2401:5180:0:66:a300::/73 dev slaptap16-2 via 2401:5180:0:66:a300::1

The second run with the same arguments looks as

    # ./pythonwitheggs ru/tapsplit slaptap16 2
    slaptap16: split 2401:5180:0:66:a200::/71 by 2
    preserve         2401:5180:0:66:a200::/73
    -> slaptap16-1   2401:5180:0:66:a280::/73
     # slaptap16-1: already exists
     # slaptap16-1: already up
     # slaptap16-1: already has 2401:5180:0:66:a280::/73 addr
     # slaptap16-1: already has 2401:5180:0:66:a280::1 route
     # slaptap16-1: already has 2401:5180:0:66:a280::/73 route
    -> slaptap16-2   2401:5180:0:66:a300::/73
     # slaptap16-2: already exists
     # slaptap16-2: already up
     # slaptap16-2: already has 2401:5180:0:66:a300::/73 addr
     # slaptap16-2: already has 2401:5180:0:66:a300::1 route
     # slaptap16-2: already has 2401:5180:0:66:a300::/73 route

where it could be seen that no actions had been taken.

And if, for example, the user manipulates slaptap16-2 and manually sets it
down, the third run restores it to desired 'UP' state and readds the address
and routes because the kernel removed them when link went down:

    # ip -6 addr show dev slaptap16-2
    157: slaptap16-2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
        inet6 2401:5180:0:66:a300::/73 scope global tentative noprefixroute
           valid_lft forever preferred_lft forever
    # ip -6 route show dev slaptap16-2
    2401:5180:0:66:a300::1 metric 1024 linkdown pref medium
    2401:5180:0:66:a300::/73 via 2401:5180:0:66:a300::1 metric 1024 linkdown pref medium
    # ip link set slaptap16-2 down
    # ip -6 addr show dev slaptap16-2
    # ip -6 route show dev slaptap16-2
    # ./pythonwitheggs ru/tapsplit slaptap16 2
    slaptap16: split 2401:5180:0:66:a200::/71 by 2
    preserve         2401:5180:0:66:a200::/73
    -> slaptap16-1   2401:5180:0:66:a280::/73
     # slaptap16-1: already exists
     # slaptap16-1: already up
     # slaptap16-1: already has 2401:5180:0:66:a280::/73 addr
     # slaptap16-1: already has 2401:5180:0:66:a280::1 route
     # slaptap16-1: already has 2401:5180:0:66:a280::/73 route
    -> slaptap16-2   2401:5180:0:66:a300::/73
     # slaptap16-2: already exists
     # ip link set slaptap16-2 up
     # ip addr add 2401:5180:0:66:a300::/73 dev slaptap16-2 noprefixroute
     # ip route add 2401:5180:0:66:a300::1 dev slaptap16-2
     # ip route add 2401:5180:0:66:a300::/73 dev slaptap16-2 via 2401:5180:0:66:a300::1

The first version of this patch tried to solve the problem by setting
update-command to be noop instead of reworking tapsplit itself. But as Thomas
noted this does not satisfy requirement "3".

Amends 49ce8ef5 (software/ors-amarisoft: Provide dedicated TAP interface for each Radio Unit)

/helped-by @tomo
/cc @jhuge, @lu.xu, @xavier_thompson, @Daetalus
/reviewed-on nexedi/slapos!1508

 - use caucase for balancer certificate
 - move virtual host logic on the backend
 - change "frontend" parameter to request "" type (and no longer "zope")

See merge request nexedi/slapos!1504

The strategy for compatibility is that:
 - haproxy still listen on the same port as before, without rewrite rule.
   This is called "legacy" port.
 - for each frontend from request parameters, we introduce an haproxy
   frontend with a rewrite for the corresponding `internal-path`
   parameter.
 - the shared frontend instance is updated to use this new frontend
   entry from haproxy. This will cause a small downtime until the shared
   frontend is updated to the new URL on ERP5, but since this feature
   was not used, it's OK.

Technical details are that we:
 - split haproxy config to have frontends and backends.
 - introduce one frontend in haproxy for each frontend from request
   parameters.
 - routing-rule-list argument is still honored the same way, globally
   and after path from frontend.
 - change the shared frontend requests to use "" type, no longer "zope"
   type.
 - we don't do automatic detection of /VirtualHostRoot in URL but always
   add it, because it could be used to trick zope into thinking it
   serves requests for an arbitrary host and do open redirects
 - before using the request's host header in virtualhost path, we check
   that it does not contain /, to prevent injection of virutalhost path
   elements through the host header.
 - we don't use the "path" parameter from shared frontend, because we
   want the frontend to be simple, so we don't want it to rewrite the
   request path (which is also the reason why we deprecated "zope" type)
 - the tests have changed a lot, because they were using what's now the
   "legacy" URL types, so we updated it to use the new URL types with
   all the /VirtualHostRoot/../ in path and also because they use IPv6
   URL, no longer IPv4

and save the already allocated ports in a state file, so that requesting
new families does not change already allocated ports.

This reverts commit 620c9332 (stack/erp5: stop using caucase managed
certificate for balancer, 2020-11-10) with an updated design. We add a
caucase service for balancer in the balancer partition. The caucase
service from the root partition (that was not used) is removed.

The underlying idea is that the default configuration should use multiple
caucases with limited scope, here we have one caucase to manage the
certificate used by haproxy server in the balancer partition, so we put
one caucase to manage this certificate and the caucase is configured to
auto-accept one certificate only. The plan is that when we will add a
certificate for mariadb server, we'll add another caucase inside this
mariadb server.

For more advanced usage and also to support the cases where a new
certificate needs to be re-emitted for some reason, users can request
with an existing caucase URL. In that case, they will have to accept
the certificate requests.

Notable changes:

balancer/ssl/caucase-url is no longer documented in parameters, this is
an internal parameter, users can pass one global caucase service to
manage all partition

CAUCASE environment variable is no longer set when running zope. There
was no identified use case and with this new approach of multiple
caucases, the term "caucase" alone became ambiguous.

This is not documented in schema and has no effect in erp5 (but this is
still used for slapos-master)

This change the format or the (mostly) unused frontend parameter to
support requesting more than one frontend and also enable the request of
a frontend by default, so that requesting a frontend separately is no
longer needed.

The `frontend` parameter now also supports requesting frontends for
specific paths on the ERP5 backend, the example below requests a
frontend serving directly a web site, with the necessary rewrite rules:

```js
{
  "frontend": {
    "default": {
      "internal-path": "/erp5/web_site_module/renderjs_runner/"
    }
  }
}
```

The example below requests a default frontend to the erp5 root, to
access the ZMI or erp5_xhtml_style interface and two web sites:

```js
{
  "frontend": {
    "default": {},
    "erp5js": {
      "internal-path": "/erp5/web_site_module/renderjs_runner/"
    },
    "crm": {
      "internal-path": "/erp5/web_site_module/erp5_officejs_support_request_ui/"
    }
  }
}
```

The example below has an explicit definition of the zope families using
`zope-partition-dict` parameter, because there is more than one zope
family, no frontend is requested by default:

```js
{
  "zope-partition-dict": {
    "backoffice": {
      "family": "backoffice"
    },
    "web": {
      "family": "web"
    },
    "activities": {
      "family": "activities"
    }
  }
}
```

Continuing this example, to have frontends for backoffice and web
families, the frontend request can specify the families, like it is
demonstrated in the example below. In this example, we don't specify an
entry for "activities" family, so no frontend will be requested for
this family.

```js
{
  "frontend": {
    "backoffice": {
      "zope-family": "backoffice"
    },
    "web": {
      "zope-family": "web",
      "internal-path": "/erp5/web_site_module/web_site/"
    }
  }
  "zope-partition-dict": {
    "backoffice": {
      "family": "backoffice"
    },
    "web": {
      "family": "web"
    },
    "activities": {
      "family": "activities"
    }
  }
}
```

Going 0.140 -> 0.142 introduces the following changes:

    nexedi/slapos.toolbox@0.140...0.142

Test results: https://erp5js.nexedi.net/#/test_result_module/20240215-D4F3CE96 (all ok)

(irrelevant for the coupler application).

(cherry picked from commit d1ec306a575f4dd0702aec64873794b4f822cfee)

See merge request nexedi/slapos!1531

See merge request nexedi/slapos!1529

These are already defined in stack/slapos.cfg

jupyter-py2 used an old version not py3 compatible
pygolang/test used the same version as in stack/slapos.cfg

Don't repeat slapparameter_dict['ncell_list'][k] - we can introduce a name for
current neighbour cell, and use that name in the loop. And align entries to
that they read more clearly.

No non-whitespace changes in rendered enb.cfg and gnb.cfg .

/cc @jhuge, @lu.xu, @tomo, @xavier_thompson, @Daetalus
/proposed-for-review-on nexedi/slapos!1526
/reviewed-by TrustMe

We currently have LTE-specific handover configuration in under cell_list and
NR-specific handover configuration in under nr_cell_list. Those configuration
are different.

However in upcoming MultiRU we will need to handle LTE->NR handover, NR->LTE
handover, and also Intra-ENB handover in addition to Inter-ENB handover we
currently do.

-> Move handover code into common function as a preparatory step for that.

In the future the handover code for LTE and NR cells will be the same, so it
makes sense to move that code to common place to avoid duplication.

For rendered enb.cfg this unification introduces only space and trivial
changes as shown in the appendix.

/cc @jhuge, @lu.xu, @tomo, @xavier_thompson, @Daetalus
/proposed-for-review-on nexedi/slapos!1528
/reviewed-by TrustMe

Appendix. Diff for rendered enb.cfg and gnb.cfg before and after this patch

```
$ git diff -w --no-index config/{old,out}
```

```diff
diff --git a/config/old/enb.cfg b/config/out/enb.cfg
index 43301ee13..9dcca16c7 100644
--- a/config/old/enb.cfg
+++ b/config/out/enb.cfg
@@ -45,16 +45,18 @@
       root_sequence_index: 204,
       dl_earfcn: 36100,
       inactivity_timer: 10000,
+
       // Handover
       ncell_list: [
         // Inter-ENB HO
         {
+          rat: "eutra",
           n_id_cell: 35,
           dl_earfcn: 700,
           cell_id: 0x12345,
           tac: 123,
-        }],
-
+        },
+      ],

       // Carrier Aggregation
       scell_list: [
diff --git a/config/old/gnb.cfg b/config/out/gnb.cfg
index 2127a2f6b..23b07d6e1 100644
--- a/config/old/gnb.cfg
+++ b/config/out/gnb.cfg
@@ -57,6 +57,7 @@
     ssb_pos_bitmap: "10000000",

     inactivity_timer: 10000,
+
       // Handover
       ncell_list: [
         // Inter-ENB HO
@@ -74,8 +75,8 @@
           ssb_period: 20,
           ssb_offset: 0,
           ssb_duration: 1,
-      }],
-
+        },
+      ],

     // tune NR parameters for the cell
     manual_ref_signal_power: true,
```

Useful to have while doing handover-related changes.

/cc @jhuge, @lu.xu, @tomo, @xavier_thompson, @Daetalus
/proposed-for-review-on nexedi/slapos!1528
/reviewed-by TrustMe

Appendix. Diff for rendered enb.cfg and gnb.cfg before and after this patch

```
$ git diff --no-index config/{old,out}
```

```diff
diff --git a/config/old/enb.cfg b/config/out/enb.cfg
index 1843e0f24..43301ee13 100644
--- a/config/old/enb.cfg
+++ b/config/out/enb.cfg
@@ -45,6 +45,16 @@
       root_sequence_index: 204,
       dl_earfcn: 36100,
       inactivity_timer: 10000,
+      // Handover
+      ncell_list: [
+        // Inter-ENB HO
+        {
+          n_id_cell: 35,
+          dl_earfcn: 700,
+          cell_id: 0x12345,
+          tac: 123,
+        }],
+

       // Carrier Aggregation
       scell_list: [
diff --git a/config/old/gnb.cfg b/config/out/gnb.cfg
index d76b45d3c..2127a2f6b 100644
--- a/config/old/gnb.cfg
+++ b/config/out/gnb.cfg
@@ -57,6 +57,25 @@
     ssb_pos_bitmap: "10000000",

     inactivity_timer: 10000,
+    // Handover
+    ncell_list: [
+      // Inter-ENB HO
+      {
+        rat: "nr",
+        dl_nr_arfcn: 520000,
+        ssb_nr_arfcn: ,
+        ul_nr_arfcn: 520000,
+        n_id_cell: 75,
+        gnb_id_bits: 22,
+        nr_cell_id: 0x77712,
+        tac: 321,
+        band: 38,
+        ssb_subcarrier_spacing: 30,
+        ssb_period: 20,
+        ssb_offset: 0,
+        ssb_duration: 1,
+      }],
+
```

1. Currently we have separate log_options for LTE and NR cases with listing
different subsystems in each. But in MultiRU one enb will be driving both LTE
and NR cells at the same time, so we will need to define both LTE- and
NR-related levels.

-> Merge all log settings into one log_options as a preparatory step

For current state it does not hurt for an LTE if we set e.g. ngap.level, and it
does not hurt for NR if we set e.g. s1ap.level - since those layers will be
unused. This way merging log settings for both LTE and NR subsystems is ok.

--------

2. Factorize log_phy_debug handling: instead of duplicating whole
log_options line and changing only phy.level settings there, construct the
log_options line programmatically and handle phy.level on its own.

--------

3. Use log/enb.log log_filename for both LTE and NR cases. In the upcoming
MultiRU there might be several cells activated at the same time and in general
it will be not possible to say are we doing "enb" or "gnb" now - for example if
there will be two cells - one LTE and one NR.

-> Use enb.log for log filename uniformly similarly to how the software is
named (lteenb) even though it can work as both enb and gnb.

For the reference we do the same with enb.xlog in nexedi/slapos!1522 .

/cc @jhuge, @lu.xu, @tomo, @xavier_thompson, @Daetalus
/proposed-for-review-on nexedi/slapos!1527
/reviewed-by TrustMe

Appendix. Diff for rendered enb.cfg and gnb.cfg before and after this patch

```
$ git diff --no-index config/{old,out}
```

```diff
diff --git a/config/old/enb.cfg b/config/out/enb.cfg
index 467bb6364..1843e0f24 100644
--- a/config/old/enb.cfg
+++ b/config/out/enb.cfg
@@ -3,9 +3,7 @@

 {
-
-  log_options: "all.level=error,all.max_size=0,nas.level=debug,nas.max_size=1,s1ap.level=debug,s1ap.max_size=1,x2ap.level=debug,x2ap.max_size=1,rrc.level=debug,rrc.max_size=1,phy.level=info,file.rotate=1G,file.path=/dev/null",
-
+  log_options: "all.level=error,all.max_size=0,nas.level=debug,nas.max_size=1,s1ap.level=debug,s1ap.max_size=1,x2ap.level=debug,x2ap.max_size=1,rrc.level=debug,rrc.max_size=1,ngap.level=debug,ngap.max_size=1,xnap.level=debug,xnap.max_size=1,phy.level=info,file.rotate=1G,file.path=/dev/null",
   log_filename: "log/enb.log",

diff --git a/config/old/gnb.cfg b/config/out/gnb.cfg
index 18523818a..d76b45d3c 100644
--- a/config/old/gnb.cfg
+++ b/config/out/gnb.cfg
@@ -3,10 +3,8 @@

 {
-
-  log_options: "all.level=error,all.max_size=0,nas.level=debug,nas.max_size=1,ngap.level=debug,ngap.max_size=1,xnap.level=debug,xnap.max_size=1,rrc.level=debug,rrc.max_size=1,phy.level=info,file.rotate=1G,file.path=/dev/null",
-
-  log_filename: "log/gnb.log",
+  log_options: "all.level=error,all.max_size=0,nas.level=debug,nas.max_size=1,s1ap.level=debug,s1ap.max_size=1,x2ap.level=debug,x2ap.max_size=1,rrc.level=debug,rrc.max_size=1,ngap.level=debug,ngap.max_size=1,xnap.level=debug,xnap.max_size=1,phy.level=info,file.rotate=1G,file.path=/dev/null",
+  log_filename: "log/enb.log",

   rf_driver: {
```

Current enb config is already quite complex and with MultiRU it will be growing
more - both with added features and with more sections emitted because there
will be multiple radio units, multiple cells and cross cell interactions. So
for clarity we will want to annotate with a comment to which cell or ru object
a section belongs, or to which cell-cell pair a particular interaction belongs.

Amarisoft supports C-style comments and preprocessor directives out of the box,
but if we use them in the configuration files, yaml.load, that we use in the
test to load generated configs, will break, because // and /* ... */ is not
valid YAML. It looks like Amarisoft does preprocessing as a separate step
before further loading given configuration via yaml.

So to be able to use the comments and still have tests working we need to do
the same - in the tests preprocess the files before feeding them to yaml loader.

-> Do that with the help of https://pypi.org/project/pcpp/

In my view that library has good quality and in my experience it worked
flawlessly. Anyway we need it to only handle comments, not sophisticated CPP
features, and for that it works just ok.

Add some comments to existing enb.cfg and ue.cfg to make sure it really works.
Those are simple comments, and in current state it they might seem as not 100%
necessary, but with more upcoming config changes it would be good to have those
descriptionary anchors present in the generated configs, so I suggest we add them.
Anyway they should not do any harm at all.

/cc @jhuge, @lu.xu, @tomo, @xavier_thompson, @Daetalus
/proposed-for-review-on nexedi/slapos!1526
/reviewed-by TrustMe

Currently on every test yaml.load issues a warning that using it without
explicitly specifying loader is deprecated, for example:

    test_enb_conf (testTDD.TestENBParameters) .../slapos/software/ors-amarisoft/test/test.py:29: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.

-> Fix the warning by using appropriate loader explicitly.

Use FullLoader since msg.pyyaml.org/load describes it as

   Loads the full YAML language. Avoids arbitrary code execution.
   This is currently (PyYAML 5.1+) the default loader called by yaml.load(input) (after issuing the warning).

i.e. we get support for full YAML feature set, do not get code execution and
make sure that the behaviour stays exactly the same as before, but without the
warning.

/cc @jhuge, @lu.xu, @tomo, @xavier_thompson, @Daetalus
/proposed-for-review-on nexedi/slapos!1526
/reviewed-by TrustMe

We are going to do fixes and enhancements to YAML loading processes. Move
corresponding code to one place before that as the preparatory step.

Place new utility in new test/test.py file - with MultiRU that will be the
place for tests of generic mode and test.jinja2.py, which will be renamed to
test_ors.py, will be using utilities from there. So place the utility into new
place from the start.

/cc @jhuge, @lu.xu, @tomo, @xavier_thompson, @Daetalus
/proposed-for-review-on nexedi/slapos!1526
/reviewed-by TrustMe

In MultiRU one enb will be driving multiple, possible of different kind,
TDD/FDD and LTE/NR cells all at the same time, because that standard
functionality of a base station and because original Amarisoft software
supports that out of the box.

However we currently have enb and gnb services separate and duplicating most of
each other code.

-> Merge instance-enb.jinja2.cfg and instance-gnb.jinja2.cfg as a preparatory step for MultiRU.

- instance-enb.jinja2.cfg pulls gnb specific bits from instance-gnb.jinja2.cfg
- instance-gnb.jinja2.cfg goes away effectively switching gnb to use
  ru/libinstance.jinja2.cfg like enb already does
- For parameters that were duplicated as enb_<X> and gnb_<X>  generic software
  now accepts only enb_<X> with ORS mode wrapper providing backward
  compatibility for gnb_* parameters. For example if gnb_config_link is given
  for a gnb instance, it will be translated to enb_config_link to underlying
  generic enb so that gnb_config_link works correctly.

  For ORS we care to provide 100% backward compatibility because there are many ORS'es deployed.
  For generic software we are free to clean things up as needed, because there
  is not much generic deployments at this time.

/cc @jhuge, @lu.xu, @tomo, @xavier_thompson, @Daetalus
/proposed-for-review-on nexedi/slapos!1522
/reviewed-by TrustMe

--------

Appendix. Diff between instance-enb.jinja2.cfg and instance-gnb.jinja2.cfg before this patch

```
$ git diff --no-index instance-enb.jinja2.cfg instance-gnb.jinja2.cfg
```

```diff
diff --git a/instance-enb.jinja2.cfg b/instance-gnb.jinja2.cfg
index 6d4ce7e94..6ee62b3ff 100644
--- a/instance-enb.jinja2.cfg
+++ b/instance-gnb.jinja2.cfg
@@ -1,19 +1,25 @@
 {#- defaults for eNB radio parameters.
     NOTE they are installed temporary and will go away after switch to generic multiRU. #}
 {%- do RF.setdefault('tx_gain',     slapparameter_dict.get('tx_gain',     0)) %}
 {%- do RF.setdefault('rx_gain',     slapparameter_dict.get('rx_gain',     0)) %}
-{%- do RF.setdefault('dl_earfcn',   slapparameter_dict.get('dl_earfcn',   0)) %}
+{%- do RF.setdefault('dl_nr_arfcn', slapparameter_dict.get('dl_nr_arfcn', 0)) %}
+{%- do RF.setdefault('nr_band',     slapparameter_dict.get('nr_band',     0)) %}

 [buildout]
 parts =
   directory
-  enb-config
+  gnb-config
   enb-service
   xamari-xlog-service
 {% if slapparameter_dict.get('xlog_fluentbit_forward_host') %}
   xlog-fluentbit-service
 {% endif %}
+  amarisoft-stats-service
+  amarisoft-rf-info-service
+  check-sdr-busy.py
   check-baseband-latency.py
+  check-amarisoft-stats-log.py
+  check-rx-saturated.py
   monitor-base
   publish-connection-information

@@ -23,11 +29,6 @@ eggs-directory = {{ eggs_directory }}
 develop-eggs-directory = {{ develop_eggs_directory }}
 offline = true

-{%- import 'slaplte.jinja2'            as slaplte with context  %}
-{%- import 'ru_libinstance.jinja2.cfg' as rulib   with context  %}
-{{ rulib.buildout() }}
-
-
 [monitor-httpd-conf-parameter]
 httpd-include-file = {{ buildout_directory }}/etc/httpd-include-file.conf
 port = ${monitor-instance-parameter:monitor-httpd-port}
@@ -52,10 +53,11 @@ cert = {{ slap_connection['cert-file'] }}

 configuration.com_ws_port = 9001
 configuration.com_addr = 127.0.1.2
-configuration.mme_addr = 127.0.1.100
+configuration.amf_addr = 127.0.1.100
 configuration.gtp_addr = 127.0.1.1
-configuration.default_lte_bandwidth = {{ default_lte_bandwidth }}
-configuration.default_lte_inactivity_timer = {{ default_lte_inactivity_timer }}
+configuration.default_nr_bandwidth = {{ default_nr_bandwidth }}
+configuration.default_nr_inactivity_timer = {{ default_nr_inactivity_timer }}
+configuration.default_nr_ssb_pos_bitmap = {{ default_nr_ssb_pos_bitmap }}
 configuration.default_n_antenna_dl = {{ default_n_antenna_dl }}
 configuration.default_n_antenna_ul = {{ default_n_antenna_ul }}

@@ -63,6 +65,7 @@ configuration.default_n_antenna_ul = {{ default_n_antenna_ul }}
 recipe = slapos.cookbook:mkdirectory
 software = {{ buildout_directory }}
 home = ${buildout:directory}
+etc = ${:home}/etc
 var = ${:home}/var
 etc = ${:home}/etc
 bin = ${:home}/bin
@@ -73,30 +76,32 @@ service = ${:etc}/service
 promise = ${:etc}/promise
 log = ${:var}/log

-{% if slapparameter_dict.get("enb_config_link", None) %}
-[enb-config-dl]
+{% if slapparameter_dict.get("gnb_config_link", None) %}
+[gnb-config-dl]
 recipe = slapos.recipe.build:download
-url = {{ slapparameter_dict.get("enb_config_link") }}
-version = {{ slapparameter_dict.get("enb_config_version") }}
+url = {{ slapparameter_dict.get("gnb_config_link") }}
+version = {{ slapparameter_dict.get("gnb_config_version") }}
 offline = false
 {% endif %}

 [enb-sh-wrapper]
 recipe = slapos.recipe.template
 output = ${directory:bin}/${:_buildout_section_name_}
-enb-log = ${directory:log}/enb-output.log
+gnb-log = ${directory:log}/gnb-output.log
 inline =
   #!/bin/sh
 {% if not slapparameter_dict.get("testing", False) %}
   sudo -n /opt/amarisoft/rm-tmp-lte;
   sudo -n /opt/amarisoft/init-sdr;
   sudo -n /opt/amarisoft/init-enb;
-  (echo && echo && date "+[%Y/%m/%d %T.%N %Z] Starting eNB software..." && echo) >> ${:enb-log};
-  tail -c 1M ${:enb-log} > ${:enb-log}.tmp;
-  mv ${:enb-log}.tmp ${:enb-log};
-  {{ enb }}/lteenb ${directory:etc}/enb.cfg >> ${:enb-log} 2>> ${:enb-log};
+  (echo && echo && date "+[%Y/%m/%d %T.%N %Z] Starting gNB software..." && echo) >> ${:gnb-log};
+  tail -c 1M ${:gnb-log} > ${:gnb-log}.tmp;
+  mv ${:gnb-log}.tmp ${:gnb-log};
+  {{ enb }}/lteenb ${directory:etc}/gnb.cfg >> ${:gnb-log} 2>> ${:gnb-log};
+
 {% endif %}

+### eNodeB (enb)
 [enb-service]
 recipe = slapos.cookbook:wrapper
 command-line = ${enb-sh-wrapper:output}
@@ -105,7 +110,7 @@ mode = 0775
 reserve-cpu = True
 pidfile = ${directory:run}/enb.pid
 hash-files =
-  ${enb-config:output}
+  ${gnb-config:output}
   ${enb-sh-wrapper:output}
 environment =
   LD_LIBRARY_PATH={{ openssl_location }}/lib
@@ -114,22 +119,23 @@ environment =
 [xamari-xlog-script]
 recipe = slapos.recipe.template
 output = ${directory:bin}/${:_buildout_section_name_}
-period = {{ slapparameter_dict.get("enb_stats_fetch_period", 60) }}
+period = {{ slapparameter_dict.get("gnb_stats_fetch_period", 60) }}
 stats_logspec = stats[samples,rf]/${:period}s
-{%- if slapparameter_dict.get("enb_drb_stats_enabled", True) %}
+{%- if slapparameter_dict.get("gnb_drb_stats_enabled", True) %}
 drb_stats_logspec = x.drb_stats/${:period}s
 {%- else %}
 drb_stats_logspec =
 {%- endif %}
 rotatespec = 100MB.9
 logspec = ${:stats_logspec} ${:drb_stats_logspec}
-{%- if slapparameter_dict.get("websocket_password", "") %}
+logspec = ${:stats_logspec} ${:drb_stats_logspec}
+{% if slapparameter_dict.get("websocket_password", "") %}
 websock = ws://[${slap-configuration:ipv6-random}]:9001
-{%- else %}
+{% else %}
 websock = ws://127.0.1.2:9001
-{%- endif %}
+{% endif %}
 xamari = {{ buildout_directory }}/bin/xamari
-logfile = ${monitor-directory:public}/enb.xlog
+logfile = ${monitor-directory:public}/gnb.xlog
 inline =
   #!/bin/sh
   exec ${:xamari} xlog --rotate ${:rotatespec} ${:websock} ${:logfile} ${:logspec}
@@ -177,6 +183,52 @@ wrapper-path = ${directory:service}/${:_buildout_section_name_}
 hash-files = ${:fluentbit-config}
 {% endif %}

+[amarisoft-stats-template]
+recipe = slapos.recipe.template:jinja2
+extensions = jinja2.ext.do
+log-output = ${directory:var}/log/amarisoft-stats.json.log
+context =
+  section directory directory
+  key slapparameter_dict slap-configuration:configuration
+  key log_file :log-output
+  raw stats_period {{ slapparameter_dict.get("gnb_stats_fetch_period", 60) }}
+  raw testing {{ slapparameter_dict.get("testing", False) }}
+  raw python_path {{ buildout_directory}}/bin/pythonwitheggs
+mode = 0775
+url = {{ ru_amarisoft_stats_template }}
+output = ${directory:bin}/amarisoft-stats.py
+
+[amarisoft-rf-info-template]
+recipe = slapos.recipe.template:jinja2
+extensions = jinja2.ext.do
+log-output = ${directory:var}/log/amarisoft-rf-info.json.log
+context =
+  section directory directory
+  key slapparameter_dict slap-configuration:configuration
+  key log_file :log-output
+  raw stats_period {{ slapparameter_dict.get("gnb_stats_fetch_period", 60) }}
+  raw testing {{ slapparameter_dict.get("testing", False) }}
+  raw python_path {{ buildout_directory}}/bin/pythonwitheggs
+mode = 0775
+url = {{ ru_amarisoft_rf_info_template }}
+output = ${directory:bin}/amarisoft-rf-info.py
+
+[amarisoft-stats-service]
+recipe = slapos.cookbook:wrapper
+command-line = ${amarisoft-stats-template:output}
+wrapper-path = ${directory:service}/amarisoft-stats
+mode = 0775
+hash-files =
+  ${amarisoft-stats-template:output}
+
+[amarisoft-rf-info-service]
+recipe = slapos.cookbook:wrapper
+command-line = ${amarisoft-rf-info-template:output}
+wrapper-path = ${directory:service}/amarisoft-rf-info
+mode = 0775
+hash-files =
+  ${amarisoft-rf-info-template:output}
+
 [config-base]
 recipe = slapos.recipe.template:jinja2
 extensions = jinja2.ext.do
@@ -190,53 +242,47 @@ context =
   raw gtp_addr_v4 {{ lan_ipv4 }}
   raw tx_gain {{ RF.tx_gain }}
   raw rx_gain {{ RF.rx_gain }}
-  raw earfcn  {{ RF.dl_earfcn }}
+  raw nr_arfcn {{ RF.dl_nr_arfcn }}
+  raw nr_band {{ RF.nr_band }}
   raw software_name {{ software_name }}
   raw rf_mode {{ rf_mode }}
   raw trx {{ trx }}
   raw bbu {{ bbu }}
   raw ru_type {{ ru }}
-  json do_lte true
-  json do_nr  false
+  json do_lte false
+  json do_nr  true
   import  netaddr netaddr
   ${:extra-context}

-[sib-config]
-<= config-base
-url = {{ sib23_template }}
-output = ${directory:etc}/sib23.cfg
-
 [drb-config]
 <= config-base
-url = {{ drb_lte_template }}
+url = {{ drb_nr_template }}
 output = ${directory:etc}/drb.cfg

-[enb-config]
+[gnb-config]
 <= config-base
-{% if slapparameter_dict.get("enb_config_link", None) %}
-url = ${enb-config-dl:target}
+{% if slapparameter_dict.get("gnb_config_link", None) %}
+url = ${gnb-config-dl:target}
 {% else %}
 url = {{ enb_template }}
 {% endif %}
-output = ${directory:etc}/enb.cfg
+output = ${directory:etc}/gnb.cfg
 extra-context =
     import json_module json
-    json cell_list {{ rulib.cell_list | tojson }}
-    key sib23_file sib-config:output
     key drb_file   drb-config:output
 import-list =
     rawfile slaplte.jinja2 {{ slaplte_template }}

-
 [publish-connection-information]
 <= monitor-publish
 recipe = slapos.cookbook:publish.serialised
 {%- if slapparameter_dict.get("websocket_password", "") %}
 websocket_url = ws://[${slap-configuration:ipv6-random}]:9001
 {%- endif %}
-enb-ipv6 = ${slap-configuration:ipv6-random}
-enb-ipv4 = {{ lan_ipv4 }}
-current-earfcn  = {{ RF.dl_earfcn }}
+gnb-ipv6 = ${slap-configuration:ipv6-random}
+gnb-ipv4 = {{ lan_ipv4 }}
+current-nr-arfcn = {{ RF.dl_nr_arfcn }}
+current-nr-band = {{ RF.nr_band }}
 amarisoft-version = {{ lte_version }}
 license-expiration = {{ lte_expiration }}
 monitor-gadget-url = ${:monitor-base-url}/gadget/software.cfg.html
@@ -253,10 +299,35 @@ password = {{ slapparameter_dict['monitor-password'] | string }}
 <= monitor-promise-base
 name = ${:_buildout_section_name_}

+[check-sdr-busy.py]
+<= macro.promise
+promise = check_sdr_busy
+config-testing = {{ slapparameter_dict.get("testing", False) }}
+config-sdr = {{ sdr }}
+config-sdr_dev  = 0
+config-dma_chan = 0
+
 [check-baseband-latency.py]
 <= macro.promise
 promise = check_baseband_latency
 config-testing = {{ slapparameter_dict.get("testing", False) }}
-config-amarisoft-stats-log = ${ru_amarisoft-stats-template:log-output}
-config-stats-period = {{ slapparameter_dict.get("enb_stats_fetch_period", 60) }}
+config-amarisoft-stats-log = ${amarisoft-stats-template:log-output}
+config-stats-period = {{ slapparameter_dict.get("gnb_stats_fetch_period", 60) }}
 config-min-rxtx-delay = {{ slapparameter_dict.get("min_rxtx_delay", 0) }}
+
+[check-amarisoft-stats-log.py]
+<= macro.promise
+promise = check_amarisoft_stats_log
+output = ${directory:plugins}/check-amarisoft-stats-log.py
+config-testing = {{ slapparameter_dict.get("testing", False) }}
+config-amarisoft-stats-log = ${amarisoft-stats-template:log-output}
+config-stats-period = {{ slapparameter_dict.get("gnb_stats_fetch_period", 60) }}
+
+[check-rx-saturated.py]
+<= macro.promise
+promise = check_rx_saturated
+config-testing = {{ slapparameter_dict.get("testing", False) }}
+config-rf-rx-chan-list = {{ list(range(0, int(slapparameter_dict.get('n_antenna_ul', default_n_antenna_ul)))) }}
+config-amarisoft-stats-log = ${amarisoft-stats-template:log-output}
+config-stats-period = {{ slapparameter_dict.get("gnb_stats_fetch_period", 60) }}
+config-max-rx-sample-db = {{ slapparameter_dict.get("max_rx_sample_db", 0) }}
```

In MultiRU we are going to have generic software with flexible configuration
and many features + ORS software, which wraps the generic part, adds ORS
specific features, and translates simple ORS schema to generic ones.

Let's first move ORS-specific bits to dedicated place as a preparatory step for that:

- add software-ors.cfg . In the future software-ors.cfg will be the entry point
  for ORS mode, but for now it is only a place from where software-ors-* extend from.

- add instance-ors.cfg . We move ORS-specific code from instance.cfg here and
  set it to use instance-ors-enb.jinja2.cfg when instantiating enb/gnb.

- add instance-ors-enb.jinja2.cfg . This pulls ORS-specific code from
  instance-enb.jinja2.cfg + instance-gnb.jinja2.cfg and wraps them with ORS
  context built by instance-ors.cfg

- in the templates the way to see whether it is ORS or not, and if yes, to access
  ORS parameters is changed: now it is always via checking `ors` object, which
  can be either False for non-ORS mode, or dict for ORS mode, and if it is dict
  the keys inside that dict are ORS specific properties, e.g. ors['one-watt'].

  This adjustment is handy to organize ORS mode extension from generic with
  generic setting `json ors false` in the context, and ORS mode undoing that and
  setting ORS context properly. I think the code also reads more clear this way, i.e. with

 	{%- if one_watt == "True" %}

  changed to

	{%- if ors['one-watt'] %}

  because in the second variant it is clear that one-watt is a property of ORS.

The rendered configs for enb.cfg and gnb.cfg stay unchanged.

/cc @jhuge, @lu.xu, @tomo, @xavier_thompson, @Daetalus
/proposed-for-review-on nexedi/slapos!1522
/reviewed-by TrustMe

We use computer identifier in fluentd forwarding. This identifier was named as
ors-id, but it applies not only to ORS, but also to generic deployment with
BBU.

In the next patch we are going to introduce ORS mode and move ORS-specific
bits to software-ors.cfg and instance-ors.cfg + co. The computer identifier
will stay in generic part, because it is generic.

-> To avoid ambiguity rename it to be clearly unrelated to ORS specifics.

/cc @jhuge, @lu.xu, @tomo, @xavier_thompson, @Daetalus
/proposed-for-review-on nexedi/slapos!1522
/reviewed-by TrustMe

When there are multiple cells and CA configured, without those parameters enb fails to start with e.g.

    n1_pucch_an_cs_count must be > 0 for the CA Primary cell

Set them on all cell like illustrated in enb-2cc.cfg and enb-3cc.cfg Amarisoft examples.

Not sure selected values are best - I took them from above mentioned examples as is.

Reference to documentation about those parameters:

https://tech-academy.amarisoft.com/lteenb.doc#prop.pucch_dedicated.n1_pucch_an_cs_count
https://tech-academy.amarisoft.com/lteenb.doc#prop.pucch_dedicated.n3_pucch_an_n_rb
https://tech-academy.amarisoft.com/lteenb.doc#prop.pucch_dedicated.ack_nack_feedback_mode_ca

/cc @lu.xu, @tomo, @xavier_thompson, @Daetalus
/helped-by @jhuge
/reviewed-on nexedi/slapos!1519