Changed the docker file because of issue building

[digikin]

I am playing around with containerizing your app with passing the variables through an environment file but every time I build it keeps throwing an error:

Error: could not get uid/gid
[ 'nobody', 0 ]

After some research I found that using this change worked. Here is a link to the issue npm/uid-number#3

Also I having trouble figuring out which part is where I place the variables for twitter or meetup.

/*eslint-disable */
var twit = new twitter({
    consumer_key: process.env.twitter_ck,
    consumer_secret: process.env.twitter_cs,
    access_token_key: process.env.twitter_atk,
    access_token_secret: process.env.twitter_ats