launch_machines.jl

using Distributed

function machines_vector(user::String, ips::Vector{String}, ports::Vector{I}) where {I<:Integer}
    machines = Vector()

    for ip in ips, port in ports
        push!(machines, "$user@$ip 0.0.0.0:$port")
    end

    return machines
end

function launch_machines()
    user = "centos"
    ips = ["3.93.36.225", "18.234.97.122"] # IPs for two machine workers
    ports = [34000]

    pem_file = joinpath(homedir(), ".ssh", "my-ssh-key.pem")
    @assert isfile(pem_file)

    flags = `-i $pem_file`
    addprocs(machines_vector(user, ips, ports), sshflags=flags, dir="/home/$user", exename="/home/$user/julia-1.1.0/bin/julia")
end