run-cluster.sh

#!/bin/bash

# Start/stop test cluster on localhost. This is NOT a production script. Use it for reference only.

# Names of cluster nodes
ALL_NODE_NAMES=( one two three )
# Port where the first node will listen for client connections over http
HTTP_BASE_PORT=6080
# Port where the first node will listen for gRPC intra-cluster connections.
GRPC_BASE_PORT=6090

# Allow for non-default config file to be specifid on the command line like config=file_name
if [ ! -z "$config" ] ; then
  TINODE_CONF=$config
else
  TINODE_CONF="./tinode.conf"
fi

case "$1" in
  start)
    echo 'Running cluster on localhost, ports 6080-6082'

    HTTP_PORT=$HTTP_BASE_PORT
    GRPC_PORT=$GRPC_BASE_PORT
    for NODE_NAME in "${ALL_NODE_NAMES[@]}"
    do
      # Start the node
      ./server -config=${TINODE_CONF} -cluster_self=$NODE_NAME -listen=:${HTTP_PORT} -grpc_listen=:${GRPC_PORT} &
      # Save PID of the node to a temp file.
      # /var/tmp/ does not requre root access.
      echo $!> "/var/tmp/tinode-${NODE_NAME}.pid"
      # Increment ports for the next node.
      HTTP_PORT=$((HTTP_PORT+1))
      GRPC_PORT=$((GRPC_PORT+1))
    done
    ;;
  stop)
    echo 'Stopping cluster'

    for NODE_NAME in "${ALL_NODE_NAMES[@]}"
    do
      # Reda PIDs of running nodes from temp files and kill them.
      kill `cat /var/tmp/tinode-${NODE_NAME}.pid`
      # Clean up: delete temp files.
      rm "/var/tmp/tinode-${NODE_NAME}.pid"
    done
    ;;
  *)
    echo $"Usage: $0 {start|stop} [ config=<path_to_tinode.conf> ]"
esac