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https://github.com/stevenmmortimer/pothole

Edmonton Pothole Prediction Service
https://github.com/stevenmmortimer/pothole

Last synced: 26 days ago
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Edmonton Pothole Prediction Service

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README 

        
Deploy Edmonton Pothole Prediction Model

====================



This package was created to illustrate how to deploy an R model as an API using OpenCPU. 

The model is included in the `data` directory of the package, and was created

using the [createmodel.R](https://github.com/reportmort/pothole/blob/master/inst/pothole/createmodel.R) script. 

It predicts number of potholes filled monthly in Edmonton.



Below are a set of various commands for hitting the API after it's been created per

instructions laid out by OpenCPU



    # Install & Score in R

    library(devtools)

    install_github("ReportMort/pothole")

    library(pothole)

    mydata <- data.frame(month=c("2016-01-01"))

    pothole_predict(input = mydata)



    # Score from model deployed on opencpu servers

    curl https://public.opencpu.org/ocpu/github/ReportMort/pothole/R/pothole_predict/json \

      -H "Content-Type: application/json" \

      -d '{"input" : [ {"month":"2016-01-01"} ]}'

      

    # Score from R using RCurl

    library(RCurl)

    library(RJSONIO)

    res <- postForm("https://public.opencpu.org/ocpu/github/ReportMort/pothole/R/pothole_predict/json",

            .opts = list(postfields = toJSON(list(input=list(month="2016-01-01"))),

            httpheader = c('Content-Type' = 'application/json', Accept = 'application/json'),

            ssl.verifypeer = FALSE))

    fromJSON(res)

      

    # Score using Vagrant and Virtualbox

    # First setup virtual machine, copy package to it, ssh into it and install, and run curl against that machine

    scp -P 2222 /cygdrive/c/users/steven.mortimer/documents/personal-github/pothole_0.0.1.tar.gz [email protected]:~/.

    vagrant ssh

    sudo R CMD INSTALL pothole.0.0.1.tar.gz --library=/usr/local/lib/R/site-library

    curl http://10.68.12.119/ocpu/library/pothole/R/pothole_predict/json \

      -H "Content-Type: application/json" \

      -d '{"input" : [ {"month":"2016-01-01"} ]}'

      



For users who prefer to not use public hosting provided by OpenCPU

below is a vagrant script for deploying on AWS.



```

access_key_id = ENV['AWS_ACCESS_KEY_ID']

secret_access_key = ENV['AWS_SECRET_ACCESS_KEY']



Vagrant.configure("2") do |config|



	config.vm.box = "dummy"

	

	config.vm.provider :aws do |aws, override|

		aws.access_key_id = access_key_id

		aws.secret_access_key = secret_access_key

		aws.keypair_name = "your-keypair-name"

		aws.region = "us-west-2"

		aws.instance_type = "t2.micro"

		aws.ami = "ami-07677666"

		aws.security_groups = ['name-of-your-security-group']



		override.ssh.username = "ubuntu"

		override.ssh.private_key_path = "/path/to/your/private/key.pem"

	

	end



$script = < /dev/null

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E084DAB9

sudo add-apt-repository ppa:marutter/rdev

sudo apt-get update

sudo apt-get -y install r-base r-base-dev



# Install RStudio for the convenience of working directly on the server

wget -q https://download2.rstudio.org/rstudio-server-0.99.489-amd64.deb

gdebi -n rstudio-server-0.99.489-amd64.deb

chmod -R 777 /usr/lib/R/site-library

chmod -R 777 /usr/share/R/doc



# Add a user to be able to access RStudio Server

sudo useradd -d /home/rstudio -m rstudio

echo -e "pass\npass" | (sudo passwd rstudio)



# install the R packages required for this prediction API

sudo R -e "install.packages(c('forecast', 'zoo', 'lubridate'), repos = 'http://cran.rstudio.com/', dep = TRUE)"



# Prevent postfix from prompting for hostname

sudo debconf-set-selections <<< "postfix postfix/mailname string your.hostname.com"

sudo debconf-set-selections <<< "postfix postfix/main_mailer_type string 'Internet Site'"

sudo apt-get install -y postfix

 

# Install OpenCPU

sudo add-apt-repository -y ppa:opencpu/opencpu-1.5

sudo apt-get update

sudo apt-get install -y opencpu-server



# Install the package for this prediction API

sudo R -e "install.packages('/vagrant/pothole_0.0.1.tar.gz', repos=NULL, type='source')"



BOOTSTRAP



  config.vm.provision :shell, :inline => $script

  

end

```