Add charmcraft 3 support

Update the charmcraft.yaml file to use base and platforms, only
allowing noble support.

- Update osci.yaml to use the charmcraft 3.x/beta
- Add noble/oracular to charmhelpers
- Drop non-noble tests

Change-Id: I9df19317452af23169f4e90f6321c2ee222d14b0

Author: wolsen

charmcraft.yaml

@@ -4,29 +4,18 @@ parts:
   charm:
     plugin: dump
     source: .
-    prime:
-      - actions/*
-      - charmhelpers/*
-      - files/*
-      - hooks/*
-      - lib/*
-      - templates/*
-      - actions.yaml
-      - config.yaml
-      - copyright
-      - icon.svg
-      - LICENSE
-      - Makefile
-      - metadata.yaml
-      - README.md
 
-bases:
-  - build-on:
-      - name: ubuntu
-        channel: "22.04"
-        architectures:
-          - amd64
-    run-on:
-      - name: ubuntu
-        channel: "22.04"
-        architectures: [amd64, s390x, ppc64el, arm64]
+base: [email protected]
+platforms:
+  amd64:
+    build-on: amd64
+    build-for: amd64
+  arm64:
+    build-on: arm64
+    build-for: arm64
+  ppc64el:
+    build-on: ppc64el
+    build-for: ppc64el
+  s390x:
+    build-on: s390x
+    build-for: s390x

hooks/charmhelpers/core/host_factory/ubuntu.py

@@ -33,6 +33,8 @@
     'kinetic',
     'lunar',
     'mantic',
+    'noble',
+    'oracular',
 )
 
 

osci.yaml

@@ -6,4 +6,4 @@
       needs_charm_build: true
       charm_build_name: neutron-openvswitch
       build_type: charmcraft
-      charmcraft_channel: 2.x/stable
+      charmcraft_channel: 3.x/beta