add netavark plugin driver

This contains the core netavark logic to actually execute custom plugins.
This adds a new --plugin-directory option which can be set multiple
times to give a list of directories that will be searched for the
plugin.

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

1 files changed, 64 insertions, 0 deletions

diff --git a/test/500-plugin.bats b/test/500-plugin.bats
new file mode 100644
index 0000000..a9d0d66
--- /dev/null
+++ b/test/500-plugin.bats
@@ -0,0 +1,64 @@
+#!/usr/bin/env bats   -*- bats -*-
+#
+# macvlan driver test
+#
+
+load helpers
+
+
+# create config for plugin with the name as first arg
+function get_conf() {
+    cat <<EOF
+{
+   "container_id": "someID",
+   "container_name": "someName",
+   "networks": {
+      "plugin-net": {
+         "interface_name": "eth0"
+      }
+   },
+   "network_info": {
+      "plugin-net": {
+         "name": "plugin-net",
+         "id": "2f259bab93aaaaa2542ba43ef33eb990d0999ee1b9924b557b7be53c0b7a1bb9",
+         "driver": "$1",
+         "network_interface": "dummy0",
+         "ipv6_enabled": false,
+         "internal": false,
+         "dns_enabled": false
+      }
+   }
+}
+EOF
+}
+
+function run_netavark_plugins() {
+    run_netavark --plugin-directory ./targets/release/examples/ "$@"
+}
+
+@test "plugin - test error message" {
+    config=$(get_conf error-plugin)
+
+    expected_rc=1 run_netavark_plugins setup $(get_container_netns_path) <<<"$config"
+    assert '{"error":"plugin \"error-plugin\" failed: exit code 1, message: setup error"}'
+
+    expected_rc=1 run_netavark_plugins teardown $(get_container_netns_path) <<<"$config"
+    assert '{"error":"plugin \"error-plugin\" failed: exit code 1, message: teardown error"}'
+}
+
+@test "plugin - host-device" {
+    config=$(get_conf host-device-plugin)
+
+    run_in_host_netns ip link add dummy0 type dummy
+
+    run_netavark_plugins setup $(get_container_netns_path) <<<"$config"
+    assert  "$output" =~ '"interfaces"\:\{"dummy0"\:' "status block with interface name"
+
+    run_in_container_netns ip link show dummy0
+
+    run_netavark_plugins teardown $(get_container_netns_path) <<<"$config"
+    assert '' "no error output"
+
+    # interface should be back in the host ns
+    run_in_host_netns ip link show dummy0
+}