Improve handling of integration test aliases. (#38698)

* Include change classification data in metadata.
* Add support for disabled tests.
* Add support for unstable tests.
* Add support for unsupported tests.
* Overhaul integration aliases sanity test.
* Update Shippable scripts to handle unstable tests.
* Mark unstable Azure tests.
* Mark unstable Windows tests.
* Mark disabled tests.

test/sanity/code-smell/integration-aliases.py

@@ -1,43 +0,0 @@
-#!/usr/bin/env python
-
-import os
-import textwrap
-
-
-def main():
-    targets_dir = 'test/integration/targets'
-
-    with open('test/integration/target-prefixes.network', 'r') as prefixes_fd:
-        network_prefixes = prefixes_fd.read().splitlines()
-
-    for target in sorted(os.listdir(targets_dir)):
-        target_dir = os.path.join(targets_dir, target)
-        aliases_path = os.path.join(target_dir, 'aliases')
-        files = sorted(os.listdir(target_dir))
-
-        # aliases already defined
-        if os.path.exists(aliases_path):
-            continue
-
-        # don't require aliases for support directories
-        if any(os.path.splitext(f)[0] == 'test' and os.access(os.path.join(target_dir, f), os.X_OK) for f in files):
-            continue
-
-        # don't require aliases for setup_ directories
-        if target.startswith('setup_'):
-            continue
-
-        # don't require aliases for prepare_ directories
-        if target.startswith('prepare_'):
-            continue
-
-        # TODO: remove this exclusion once the `ansible-test network-integration` command is working properly
-        # don't require aliases for network modules
-        if any(target.startswith('%s_' % prefix) for prefix in network_prefixes):
-            continue
-
-        print('%s: missing integration test `aliases` file' % aliases_path)
-
-
-if __name__ == '__main__':
-    main()