confd: fix pyang linter errors

Issue #815 detail issues found running the Clixon Controllar and
Cisco Yangsuite.  The errors and warnings listed are very similar
to pyang, which the undersigned has, the following changes fixes
the pyang errors:

 - relocate 'feature containers' to submodule
 - drop already deviated ospf:database deviations
 - drop unused imports

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

src/confd/yang/confd.inc

@@ -27,7 +27,7 @@ MODULES=(
 	"ieee802-dot1q-types@2022-10-29.yang"
 	"infix-ip@2024-09-16.yang"
 	"infix-if-type@2024-10-13.yang"
-	"infix-routing@2024-10-01.yang"
+	"infix-routing@2024-11-15.yang"
 	"ieee802-dot1ab-lldp@2022-03-15.yang"
 	"infix-lldp@2023-08-23.yang"
 	"infix-dhcp-client@2024-09-20.yang"
@@ -37,7 +37,7 @@ MODULES=(
 	"ieee802-ethernet-interface@2019-06-21.yang"
 	"infix-ethernet-interface@2024-02-27.yang"
 	"infix-factory-default@2023-06-28.yang"
-	"infix-interfaces@2024-11-12.yang -e vlan-filtering"
+	"infix-interfaces@2024-11-15.yang -e vlan-filtering"
 
 	# from rousette
 	"ietf-restconf@2017-01-26.yang"

src/confd/yang/containers.inc

@@ -1,6 +1,6 @@
 # -*- sh -*-
 # REMEMBER TO UPDATE infix-interfaces ALSO IN confd.inc
 MODULES=(
-    "infix-interfaces@2024-11-12.yang -e vlan-filtering -e containers"
+    "infix-interfaces@2024-11-15.yang -e vlan-filtering -e containers"
     "infix-containers@2024-11-15.yang"
 )

src/confd/yang/infix-containers.yang

@@ -6,10 +6,6 @@ module infix-containers {
   namespace "urn:ietf:params:xml:ns:yang:infix-containers";
   prefix infix-cont;
 
-  import ietf-yang-types {
-    prefix yang;
-  }
-
   import ietf-interfaces {
     prefix if;
   }

src/confd/yang/infix-if-bridge.yang

@@ -3,9 +3,6 @@ submodule infix-if-bridge {
   belongs-to infix-interfaces {
     prefix infix-if;
   }
-  import ietf-yang-types {
-    prefix yang;
-  }
   import iana-if-type {
     prefix ianaift;
   }
@@ -15,9 +12,6 @@ submodule infix-if-bridge {
   import ietf-interfaces {
     prefix if;
   }
-  import ietf-inet-types {
-    prefix inet;
-  }
   import ietf-ip {
     prefix ip;
   }
@@ -32,6 +26,10 @@ submodule infix-if-bridge {
   contact      "kernelkit@googlegroups.com";
   description  "Linux bridge extension for ietf-interfaces.";
 
+  revision 2024-11-15 {
+    description "Fix pyang linter warnings, drop unused imports.";
+    reference "internal";
+  }
   revision 2024-08-26 {
     description "Improve must expressions for multicast.
 

src/confd/yang/infix-if-container.yang

@@ -13,16 +13,20 @@ submodule infix-if-container {
   import ietf-ip {
     prefix ip;
   }
-  import infix-if-type {
-    prefix infixift;
-  }
 
   organization "KernelKit";
   contact      "kernelkit@googlegroups.com";
   description  "Container network to interface mapping for ietf-interfaces.
                 Ensures a container interface can never be a bridge port, or
                 LAG member, at the same time.";
 
+  revision 2024-11-15 {
+    description "Two changes:
+                   - Relocate 'feature containers' declaration to here
+                   - Fix pyang linter errors and warnings, dropping unused
+                     imports and dropping the default value for subnet";
+    reference "internal";
+  }
   revision 2024-10-29 {
     description "Add read only container list to container-network";
     reference "internal";
@@ -32,6 +36,14 @@ submodule infix-if-container {
     reference "internal";
   }
 
+  /*
+   * Features
+   */
+
+  feature containers {
+    description "Containers is an optional build-time feature in Infix.";
+  }
+
   /*
    * Identities
    */
@@ -76,17 +88,17 @@ submodule infix-if-container {
 	list subnet {
 	  description "Static IP ranges to hand out addresses to containers from.
 
+                       If no subnet is provided, a default 172.17.0.0/16 one is
+                       set up.  This is the default in a standard Docker setup.
+
                        A container bridge forwards DNS, NTP, and SSH by default to
                        the host interfaces.";
 	  when "../type = 'infix-if:bridge'";
 	  key subnet;
 
 	  leaf subnet {
 	    type inet:ip-prefix;
-	    description "Subnet to assign addresses from, round-robin assignment.
-
-                         The default is from a standard Docker setup.";
-	    default "172.17.0.0/16";
+	    description "Subnet to assign addresses from, round-robin assignment.";
 	  }
 
 	  leaf gateway {

src/confd/yang/infix-interfaces.yang

@@ -4,7 +4,7 @@ module infix-interfaces {
   prefix infix-if;
 
   import infix-if-type {
-    prefix infixift;
+    prefix infix-ift;
   }
   import ietf-interfaces {
     prefix if;
@@ -23,8 +23,10 @@ module infix-interfaces {
   contact      "kernelkit@googlegroups.com";
   description  "Linux bridge and lag extensions for ietf-interfaces.";
 
-  revision 2024-11-12 {
-    description "Limit name 2-15 chars, Linux limitation.";
+  revision 2024-11-15 {
+    description "Two changes:
+                  - Limit name 2-15 chars, Linux limitation
+                  - Relocate 'feature containers' to submodule";
     reference "internal";
   }
 
@@ -74,22 +76,14 @@ module infix-interfaces {
     reference "internal";
   }
 
-  /*
-   * Features
-   */
-
-  feature containers {
-    description "Containers is an optional build-time feature in Infix.";
-  }
-
   /*
    * Data Nodes
    */
 
   deviation "/if:interfaces/if:interface/if:type" {
     deviate replace {
       type identityref {
-        base infixift:infix-interface-type;
+        base infix-ift:infix-interface-type;
       }
     }
   }

src/confd/yang/infix-routing.yang

@@ -15,17 +15,17 @@ module infix-routing {
   import ietf-ospf {
     prefix ospf;
   }
-  import ietf-interfaces {
-    prefix if;
-  }
-  import ietf-routing-types {
-    prefix rt-types;
-  }
 
   organization "KernelKit";
   contact      "kernelkit@googlegroups.com";
   description  "Deviations and augments for ietf-routing and ietf-ospf.";
 
+  revision 2024-11-15 {
+    description "Fix pyang linter errors and warnings:
+                  - Drop OSPF database deviations, already deviated earlier
+                  - Drop unused imports";
+    reference "internal";
+  }
   revision 2024-10-01 {
     description "Remove possibility to have loopack in multiple areas.";
     reference "internal";
@@ -457,26 +457,6 @@ module infix-routing {
     deviate not-supported;
   }
 
-  /* OSPF database */
-  deviation "/rt:routing/rt:control-plane-protocols/rt:control-plane-protocol/ospf:ospf/ospf:database/ospf:as-scope-lsa-type/ospf:as-scope-lsas/ospf:as-scope-lsa/ospf:version/ospf:ospfv3" {
-    deviate not-supported;
-  }
-  deviation "/rt:routing/rt:control-plane-protocols/rt:control-plane-protocol/ospf:ospf/ospf:database/ospf:as-scope-lsa-type/ospf:as-scope-lsas/ospf:as-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2/ospf:body/ospf:opaque" {
-    deviate not-supported;
-  }
-  deviation "/rt:routing/rt:control-plane-protocols/rt:control-plane-protocol/ospf:ospf/ospf:database/ospf:as-scope-lsa-type/ospf:as-scope-lsas/ospf:as-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2/ospf:body/ospf:external" {
-    deviate not-supported;
-  }
-  deviation "/rt:routing/rt:control-plane-protocols/rt:control-plane-protocol/ospf:ospf/ospf:database/ospf:as-scope-lsa-type/ospf:as-scope-lsas/ospf:as-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2/ospf:body/ospf:summary" {
-    deviate not-supported;
-  }
-  deviation "/rt:routing/rt:control-plane-protocols/rt:control-plane-protocol/ospf:ospf/ospf:database/ospf:as-scope-lsa-type/ospf:as-scope-lsas/ospf:as-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2/ospf:body/ospf:router" {
-    deviate not-supported;
-  }
-  deviation "/rt:routing/rt:control-plane-protocols/rt:control-plane-protocol/ospf:ospf/ospf:database/ospf:as-scope-lsa-type/ospf:as-scope-lsas/ospf:as-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2/ospf:header" {
-    deviate not-supported;
-  }
-
   /* OSPF RPCs */
   deviation "/ospf:clear-neighbor" {
     deviate not-supported;