T7938: VPP: Rewrite sFlow implementation

Execute commands for vpp sflow with API calls. Use values for polling interval and sampling rate from 'system sflow'. Add op-mode command

1 files changed, 30 insertions, 0 deletions

diff --git a/src/migration-scripts/vpp/2-to-3 b/src/migration-scripts/vpp/2-to-3
new file mode 100644
index 000000000..655862546
--- /dev/null
+++ b/src/migration-scripts/vpp/2-to-3
@@ -0,0 +1,30 @@
+# Copyright VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+# Remove "vpp sflow sample-rate" since it should be automatically inherited
+# from "system sflow" to prevent conflicts
+
+from vyos.configtree import ConfigTree
+
+base = ['vpp', 'sflow']
+
+def migrate(config: ConfigTree) -> None:
+    if not config.exists(base):
+        # Nothing to do
+        return
+
+    if config.exists(base + ['sample-rate']):
+        # Delete sample-rate option from sFlow configuration
+        config.delete(base + ['sample-rate'])