software/ors-amarisoft: slapos-render-config: Emit rendered files into config/out/

We are going to generate more and more type of files via slapos-render-config:
currently we generate only enb.cfg and gnb.cfg, but soon it will be also
ue-*.cfg, drb_*.cfg, asn etc.

So it will be handy to easily separate generated files from their source, to
make snapshots of generated stuff for comparison, and to also e.g. to be able
to copy generated configs to a callbox/simbox for testing.

-> Move the place where generated files are emitted from config/ to config/out/

/cc @lu.xu, @tomo, @xavier_thompson, @Daetalus
/reviewed-by @jhuge
/reviewed-on nexedi/slapos!1513

software/ors-amarisoft/slapos-render-config.py

@@ -6,10 +6,10 @@
 import zc.buildout.buildout # XXX workaround for https://lab.nexedi.com/nexedi/slapos.recipe.template/merge_requests/9
 from slapos.recipe.template import jinja2_template
 
-import json
+import json, os, glob
 
 
-# j2render renders config/<src> into config/<out> with provided json parameters.
+# j2render renders config/<src> into config/out/<out> with provided json parameters.
 def j2render(src, out, jcfg):
     ctx = json.loads(jcfg)
     assert '_standalone' not in ctx
@@ -21,7 +21,7 @@ def j2render(src, out, jcfg):
     r = jinja2_template.Recipe(buildout, "recipe", {
       'extensions': 'jinja2.ext.do',
       'url': 'config/{}'.format(src),
-      'output': 'config/{}'.format(out),
+      'output': 'config/out/{}'.format(out),
       'context': textctx,
       'import-list': '''
         rawfile slaplte.jinja2 slaplte.jinja2''',
@@ -34,7 +34,7 @@ def j2render(src, out, jcfg):
             return f.read()
     r._read = _read
 
-    with open('config/{}'.format(out), 'w+') as f:
+    with open('config/out/{}'.format(out), 'w+') as f:
       f.write(r._render().decode())
 
 
@@ -95,5 +95,17 @@ def do(src, out, rat, slapparameter_dict):
 
     j2render(src, out, json_params % locals())
 
-do('enb.jinja2.cfg', 'enb.cfg', 'lte', {"tdd_ul_dl_config": "[Configuration 6] 5ms 5UL 3DL (maximum uplink)"})
-do('enb.jinja2.cfg', 'gnb.cfg', 'nr',  {"tdd_ul_dl_config": "5ms 8UL 1DL 2/10 (maximum uplink)"})
+def do_enb():
+    do('enb.jinja2.cfg', 'enb.cfg', 'lte', {"tdd_ul_dl_config": "[Configuration 6] 5ms 5UL 3DL (maximum uplink)"})
+    do('enb.jinja2.cfg', 'gnb.cfg', 'nr',  {"tdd_ul_dl_config": "5ms 8UL 1DL 2/10 (maximum uplink)"})
+
+
+def main():
+    os.makedirs('config/out', exist_ok=True)
+    for f in glob.glob('config/out/*'):
+        os.remove(f)
+    do_enb()
+
+
+if __name__ == '__main__':
+    main()