machine_neo4j

#!/bin/bash -e

if [ $# -lt 1 ]; then
    echo "usage: $(basename $0) <machine> [<cmd>]"
    exit 1
fi

machine=$1
cmd=${@:2}

local_port="7474"
remote_port="7474"
remote_backup_cmd="/neo4j-extension/neo4j-s3-backup.sh"
neo4j_container="wust_neo4j_1"
ssh_pid=""

cleanup() {
    [ -n "$ssh_pid" ] && pkill -P "$ssh_pid"
}

exit_handler() {
  echo "exiting!"
  cleanup
  exit $?
}

backup_neo4j() {
    echo "backing up neo4j in container '$neo4j_container' '$machine' using '$remote_backup_cmd'"
    (
        eval "$(docker-machine env $machine)"
        docker exec "$neo4j_container" "$remote_backup_cmd"
    )
}

trap exit_handler SIGINT
trap exit_handler EXIT

machine_status=$(docker-machine status "$machine")
if [ "$machine_status" != "Running" ]; then
    echo "machine '$machine' is not running"
    exit 1
fi

if [ -z "$cmd" ]; then
    backup_neo4j
else
    local_port_on=$(netstat -lnt | awk "\$6 == \"LISTEN\" && \$4 ~ \":$local_port\"")
    if [ -n "$local_port_on" ]; then
        echo "local port '$local_port' already in use"
        exit 1
    fi

    remote_port_on=$(docker-machine ssh "$machine" netstat -lnt | awk "\$6 == \"LISTEN\" && \$4 ~ \":$remote_port\"")
    if [ -z "$remote_port_on" ]; then
        echo "remote port '$remote_port' on machine '$machine' not listening"
        exit 1
    fi

    backup_neo4j

    read -p "Do you really want to execute the command '$cmd'? (y/n)" answer
    if [ "$answer" != "y" ]; then
        exit 1
    fi

    echo "forward remote port '$remote_port' to local port '$local_port'"
    docker-machine ssh "$machine" -NL $local_port:localhost:$remote_port &
    ssh_pid=$!

    echo "executing command '$cmd'"
    bash -c "$cmd"
fi

echo "done"