The below installs your Github repo into the Docker container using a small
library(googleComputeEngineR) ## start an opencpu template vm <- gce_vm(name = "opencpu", template = "opencpu", predefined_type = "n1-standard-2") ## wait for opencpu image to load gce_check_container(vm, "opencpu")
This Dockerfile is available via
get_dockerfolder("opencpu-installgithub") and below. It installs an OpenCPU package from my prediction of user URLs for prefetching application.
FROM opencpu/base MAINTAINER Mark Edmondson (firstname.lastname@example.org) # install any package dependencies RUN apt-get update && apt-get install -y \ nano \ ## clean up && apt-get clean \ && rm -rf /var/lib/apt/lists/ \ && rm -rf /tmp/downloaded_packages/ /tmp/*.rds ## Install your custom package from Github RUN Rscript -e "devtools::install_github(c('MarkEdmondson1234/predictClickOpenCPU'))"
The Dockerfile is used to build the custom image below:
## build a docker image with your package installed docker_build(vm, dockerfolder = get_dockerfolder("opencpu-installgithub"), new_image = "opencpu-predictclick")
## push up to your private Google Container registry gce_push_registry(vm, save_name = "opencpu-predictclick", image_name = "opencpu-predictclick")
In this case we don't start a new instance, just stop the running OpenCPU container and start our own. We need to stop the default container to free up the ports
8004 that are needed for OpenCPU to work.
## stop default opencpu container docker_cmd(vm, "stop opencpu-server") ## run custom opencpu server docker_run(vm, image = "opencpu-predictclick", name = "predictclick", detach = TRUE, docker_opts = "-p 80:80 -p 8004:8004")
Clean up when you are done to avoid charges.
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