Schema a d (#1211)

Migrate from legacy schema or define new schema in
cloud-init-schema.json, adding extensive schema tests for:
- cc_apt_configure
- cc_bootcmd
- cc_byobu
- cc_ca_certs
- cc_chef
- cc_debug
- cc_disable_ec2_metadata
- cc_disk_setup

Deprecate config hyphenated schema keys in favor of underscores:
  - ca_certs and ca_certs.remove_defaults instead of
    ca-certs and ca-certs.remove-defaults

- Continue to honor deprecated config keys but emit DEPRECATION
  warnings in logs for continued use of the deprecated keys:
  - apt_sources key
  - any apt v1 or v2 keys
  - use or ca-certs or ca_certs.remove-defaults

- Extend apt_configure schema
   - Define more strict schema below object opaque keys using
     patternProperties
  -  create common $def apt_configure.mirror for reuse in 'primary'
     and 'security' schema definitions within cc_apt_configure

 Co-Authored-by: James Falcon <james.falcon@canonical.com>

1 files changed, 32 insertions, 23 deletions

diff --git a/cloudinit/config/cc_debug.py b/cloudinit/config/cc_debug.py
index d09fc129..1a3c9346 100644
--- a/cloudinit/config/cc_debug.py
+++ b/cloudinit/config/cc_debug.py
@@ -2,37 +2,47 @@
 #
 # This file is part of cloud-init. See LICENSE file for license information.
 
-"""
-Debug
------
-**Summary:** helper to debug cloud-init *internal* datastructures.
+"""Debug: Helper to debug cloud-init *internal* datastructures."""
+
+import copy
+from io import StringIO
+from textwrap import dedent
+
+from cloudinit import safeyaml, type_utils, util
+from cloudinit.config.schema import get_meta_doc
+from cloudinit.distros import ALL_DISTROS
+from cloudinit.settings import PER_INSTANCE
+
+SKIP_KEYS = frozenset(["log_cfgs"])
 
+MODULE_DESCRIPTION = """\
 This module will enable for outputting various internal information that
 cloud-init sources provide to either a file or to the output console/log
 location that this cloud-init has been configured with when running.
 
 .. note::
     Log configurations are not output.
-
-**Internal name:** ``cc_debug``
-
-**Module frequency:** per instance
-
-**Supported distros:** all
-
-**Config keys**::
-
-    debug:
-       verbose: true/false (defaulting to true)
-       output: (location to write output, defaulting to console + log)
 """
 
-import copy
-from io import StringIO
-
-from cloudinit import safeyaml, type_utils, util
-
-SKIP_KEYS = frozenset(["log_cfgs"])
+meta = {
+    "id": "cc_debug",
+    "name": "Debug",
+    "title": "Helper to debug cloud-init *internal* datastructures",
+    "description": MODULE_DESCRIPTION,
+    "distros": [ALL_DISTROS],
+    "frequency": PER_INSTANCE,
+    "examples": [
+        dedent(
+            """\
+            debug:
+              verbose: true
+              output: /tmp/my_debug.log
+            """
+        )
+    ],
+}
+
+__doc__ = get_meta_doc(meta)
 
 
 def _make_header(text):
@@ -53,7 +63,6 @@ def _dumps(obj):
 
 def handle(name, cfg, cloud, log, args):
     """Handler method activated by cloud-init."""
-
     verbose = util.get_cfg_by_path(cfg, ("debug", "verbose"), default=True)
     if args:
         # if args are provided (from cmdline) then explicitly set verbose