VOL-2087 reorganize and unit test arouterd
Change-Id: Iadacd1829095e8ffde306e5ebf164f4d67196a68
diff --git a/internal/pkg/afrouterd/misc.go b/internal/pkg/afrouterd/misc.go
new file mode 100644
index 0000000..09f3a8f
--- /dev/null
+++ b/internal/pkg/afrouterd/misc.go
@@ -0,0 +1,125 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package afrouterd
+
+import (
+ "fmt"
+ "github.com/opencord/voltha-go/common/log"
+ pb "github.com/opencord/voltha-protos/go/afrouter"
+ "golang.org/x/net/context"
+ "google.golang.org/grpc"
+ "google.golang.org/grpc/connectivity"
+ "google.golang.org/grpc/keepalive"
+ "math"
+ "os"
+ "strconv"
+ "time"
+)
+
+type volthaPod struct {
+ name string
+ ipAddr string
+ node string
+ devIds map[string]struct{}
+ backend string
+}
+
+// TODO: These variables should be passed in from main() rather than
+// declared here.
+
+var (
+ // if k8s variables are undefined, will attempt to use in-cluster config
+ k8sApiServer = GetStrEnv("K8S_API_SERVER", "")
+ k8sKubeConfigPath = GetStrEnv("K8S_KUBE_CONFIG_PATH", "")
+
+ podNamespace = GetStrEnv("POD_NAMESPACE", "voltha")
+ podLabelSelector = GetStrEnv("POD_LABEL_SELECTOR", "app=rw-core")
+ podAffinityGroupLabel = GetStrEnv("POD_AFFINITY_GROUP_LABEL", "affinity-group")
+
+ podGrpcPort = uint64(GetIntEnv("POD_GRPC_PORT", 0, math.MaxUint16, 50057))
+
+ afrouterRouterName = GetStrEnv("AFROUTER_ROUTER_NAME", "vcore")
+ afrouterRouteName = GetStrEnv("AFROUTER_ROUTE_NAME", "dev_manager")
+ afrouterRWClusterName = GetStrEnv("AFROUTER_RW_CLUSTER_NAME", "vcore")
+
+ kafkaTopic = GetStrEnv("KAFKA_TOPIC", "AffinityRouter")
+ kafkaClientType = GetStrEnv("KAFKA_CLIENT_TYPE", "sarama")
+ kafkaHost = GetStrEnv("KAFKA_HOST", "kafka")
+ kafkaPort = GetIntEnv("KAFKA_PORT", 0, math.MaxUint16, 9092)
+ kafkaInstanceID = GetStrEnv("KAFKA_INSTANCE_ID", "arouterd")
+)
+
+func GetIntEnv(key string, min, max, defaultValue int) int {
+ if val, have := os.LookupEnv(key); have {
+ num, err := strconv.Atoi(val)
+ if err != nil || !(min <= num && num <= max) {
+ panic(fmt.Errorf("%s must be a number in the range [%d, %d]; default: %d", key, min, max, defaultValue))
+ }
+ return num
+ }
+ return defaultValue
+}
+
+func GetStrEnv(key, defaultValue string) string {
+ if val, have := os.LookupEnv(key); have {
+ return val
+ }
+ return defaultValue
+}
+
+func Connect(ctx context.Context, addr string) (*grpc.ClientConn, error) {
+ log.Debugf("Trying to connect to %s", addr)
+ conn, err := grpc.DialContext(ctx, addr,
+ grpc.WithInsecure(),
+ grpc.WithBlock(),
+ grpc.WithBackoffMaxDelay(time.Second*5),
+ grpc.WithKeepaliveParams(keepalive.ClientParameters{Time: time.Second * 10, Timeout: time.Second * 5}))
+ if err == nil {
+ log.Debugf("Connection succeeded")
+ }
+ return conn, err
+}
+
+func setAffinity(ctx context.Context, client pb.ConfigurationClient, deviceId string, backend string) {
+ log.Debugf("Configuring backend %s with device id %s \n", backend, deviceId)
+ if res, err := client.SetAffinity(ctx, &pb.Affinity{
+ Router: afrouterRouterName,
+ Route: afrouterRouteName,
+ Cluster: afrouterRWClusterName,
+ Backend: backend,
+ Id: deviceId,
+ }); err != nil {
+ log.Debugf("failed affinity RPC call: %s\n", err)
+ } else {
+ log.Debugf("Result: %v\n", res)
+ }
+}
+
+// endOnClose cancels the context when the connection closes
+func ConnectionActiveContext(conn *grpc.ClientConn) context.Context {
+ ctx, disconnected := context.WithCancel(context.Background())
+ go func() {
+ for state := conn.GetState(); state != connectivity.TransientFailure && state != connectivity.Shutdown; state = conn.GetState() {
+ if !conn.WaitForStateChange(context.Background(), state) {
+ break
+ }
+ }
+ log.Infof("Connection to afrouter lost")
+ disconnected()
+ }()
+ return ctx
+}