Add a new filesystem for image conversion

Create the new host_fs CLI commands and the APIs
    system host-fs-add
    system host-fs-delete

These commands will be used only for adding/removing 'image-conversion'
filesystem dedicated only for qcow2 image conversion.
'image-conversion' filesystem is optional.
It is not allowed to add/remove any other filesystem.

Change-Id: I87c876371e123ec1ba946170258401d220260e31
Partial-bug: 1819688
Depends-On: https://review.opendev.org/#/c/714936/
Signed-off-by: Elena Taivan <stefan.dinescu@windriver.com>

sysinv/cgts-client/cgts-client/cgtsclient/v1/host_fs.py

@@ -9,6 +9,8 @@
 from cgtsclient.common import base
 from cgtsclient import exc
 
+CREATION_ATTRIBUTES = ['name', 'ihost_uuid', 'size']
+
 
 class HostFs(base.Resource):
     def __repr__(self):
@@ -41,6 +43,21 @@ class HostFsManager(base.Manager):
         if body:
             return self.resource_class(self, body)
 
+    def delete(self, fs_id):
+        path = '/v1/host_fs/%s' % fs_id
+        return self._delete(path)
+
+    def create(self, **kwargs):
+        path = '/v1/host_fs'
+        valid_list = []
+        new = {}
+        for (key, value) in kwargs.items():
+            if key in CREATION_ATTRIBUTES:
+                new[key] = value
+            else:
+                raise exc.InvalidAttribute('%s' % key)
+        return self._create(path, new)
+
 
 def _find_fs(cc, ihost, host_fs):
     if host_fs.isdigit():

sysinv/cgts-client/cgts-client/cgtsclient/v1/host_fs_shell.py

@@ -96,3 +96,56 @@ def do_host_fs_modify(cc, args):
         raise exc.CommandError('Failed to modify filesystems')
 
     _print_fs_list(cc, ihost.uuid)
+
+
+@utils.arg('hostnameorid',
+           metavar='<hostname or id>',
+           help="Name or ID of the host [REQUIRED]")
+@utils.arg('name',
+           metavar='<fs name>',
+           help="Name of the Filesystem [REQUIRED]")
+def do_host_fs_delete(cc, args):
+    """Delete a host filesystem."""
+
+    # Get the ihost object
+    ihost = ihost_utils._find_ihost(cc, args.hostnameorid)
+    host_fs = fs_utils._find_fs(cc, ihost, args.name)
+
+    try:
+        cc.host_fs.delete(host_fs.uuid)
+    except exc.HTTPNotFound:
+        raise exc.CommandError('Filesystem delete failed: host %s: '
+                               'name %s' % (args.hostnameorid,
+                                            args.name))
+
+
+@utils.arg('hostnameorid',
+           metavar='<hostname or id>',
+           help="Name or ID of the host [REQUIRED]")
+@utils.arg('name',
+           metavar='<fs name=size>',
+           nargs=1,
+           action='append',
+           help="Name of the Filesystem [REQUIRED]")
+def do_host_fs_add(cc, args):
+    """Add a host filesystem"""
+    fields = {}
+    # Get the ihost object
+    ihost = ihost_utils._find_ihost(cc, args.hostnameorid)
+    for attr in args.name[0]:
+        try:
+            fs_name, size = attr.split("=", 1)
+
+            fields['name'] = fs_name
+            fields['size'] = size
+        except ValueError:
+            raise exc.CommandError('Filesystem creation attributes must be '
+                                   'FS_NAME=SIZE not "%s"' % attr)
+    try:
+        fields['ihost_uuid'] = ihost.uuid
+        fs = cc.host_fs.create(**fields)
+    except exc.HTTPNotFound:
+        raise exc.CommandError('Failed to create filesystem: host %s: fields %s' %
+                               (args.hostnameorid, fields))
+
+    _print_fs_show(fs)