#mongodb sharding on Kubernetes
This example assumes that you have a Kubernetes cluster installed and running, and that you have installed the kubectl command line tool somewhere in your path. Please see the getting started for installation instructions for your platform.
#how to use
first launch replicationSet
kubectl create -f rs-node1.yaml
kubectl create -f rs-node2.yaml
kubectl create -f rs-node3.yaml
second launch config server
kubectl create -f confsvr-node1.yaml
kubectl create -f confsvr-node2.yaml
kubectl create -f confsvr-node3.yaml
third launch mongos
kubectl create -f mongos-node1.yaml
kubectl create -f mongos-node2.yaml
kubectl create -f mongos-node3.yaml
then you can scale pod
kubectl scale rc mongos1 --replicas=3
kubectl scale rc mongos2 --replicas=3
kubectl scale rc mongos3 --replicas=3
#notice
1、replicationSet server port is fixed with 27017，config server is 20000，mongs server is 30000, you can use RS1_SERVICE_PORT change it.
2、you can custom replicationSet name just change the variable RepliSetName.
3、mongos server must launch last, and you must launch two mongos servers at least.
4、when launched then you have to sharding database and set admin password, this just one piece of sharding.