Add a new API call to (re)init the replication on the remote

side via life-preserver

dataset = The local dataset/pool you are replicating
host = The target for replication, either IP or hostname

REST Request:
-------------------------------
PUT /sysadm/lifepreserver
{
   "dataset" : "tank1",
   "host" : "192.168.0.9",
   "action" : "initreplication"
}

REST Response:
-------------------------------
{
    "args": {
        "initreplication": {
            "dataset": "tank1",
            "host": "192.168.0.9"
        }
    }
}

WebSocket Request:
-------------------------------
{
   "id" : "fooid",
   "args" : {
      "host" : "192.168.0.9",
      "dataset" : "tank1",
      "action" : "initreplication"
   },
   "namespace" : "sysadm",
   "name" : "lifepreserver"
}

WebSocket Response:
-------------------------------
{
  "args": {
    "initreplication": {
      "dataset": "tank1",
      "host": "192.168.0.9"
    }
  },
  "id": "fooid",
  "name": "response",
  "namespace": "sysadm"
}

src/library/sysadm-lifepreserver.cpp

@@ -83,6 +83,46 @@ QJsonObject LifePreserver::addReplication(QJsonObject jsin) {
    return values;
 }
 
+// Re-init the LP replication target
+QJsonObject LifePreserver::initReplication(QJsonObject jsin) {
+   QJsonObject retObject;
+   QString dset, rhost;
+
+   QStringList keys = jsin.keys();
+   if(! keys.contains("dataset") || ! keys.contains("host")){
+     retObject.insert("error", "Missing dataset or host key");
+     return retObject;
+   }
+
+   // Check which pool we are looking at
+   dset = jsin.value("dataset").toString();
+   rhost = jsin.value("host").toString();
+
+   // Make sure we have the pool key
+   if ( dset.isEmpty() || rhost.isEmpty()) {
+     retObject.insert("error", "Missing dataset or host key");
+     return retObject;
+   }
+
+   // TODO - This command can take a LONG TIME. Find a way to queue / background it and return an event
+   // via websockets later, or block here and return when finished if this is REST
+   QStringList output = General::RunCommand("lpreserver replicate init " + dset + " " + rhost).split("\n");
+
+   // Check for any errors
+   for ( int i = 0; i < output.size(); i++)
+   {
+      if ( output.at(i).indexOf("ERROR:") != -1 ) {
+       retObject.insert("error", output.at(i));
+       return retObject;
+      }
+   }
+
+   QJsonObject values;
+   values.insert("dataset", dset);
+   values.insert("host", rhost);
+   return values;
+}
+
 // Build list of scheduled cron snapshot jobs
 QJsonObject LifePreserver::listCron() {
    QJsonObject retObject;

src/library/sysadm-lifepreserver.h

@@ -15,6 +15,7 @@ namespace sysadm{
 class LifePreserver{
 public:
 	static QJsonObject addReplication(QJsonObject jsin);
+	static QJsonObject initReplication(QJsonObject jsin);
 	static QJsonObject listCron(); 
 	static QJsonObject listSnap(QJsonObject jsin);
 	static QJsonObject removeSnapshot(QJsonObject jsin);

src/server/WebBackend.cpp

@@ -189,6 +189,10 @@ RestOutputStruct::ExitCode WebSocket::EvaluateSysadmLifePreserverRequest(const Q
 	ok = true;
         out->insert("cronsnap", sysadm::LifePreserver::scheduleSnapshot(in_args.toObject()));
       }
+      if(act=="initreplication"){
+	ok = true;
+        out->insert("initreplication", sysadm::LifePreserver::initReplication(in_args.toObject()));
+      }
       if(act=="listcron"){
 	ok = true;
         out->insert("listcron", sysadm::LifePreserver::listCron());