edevil

Foursquare's New Technology Policy

Why?

Being able to introduce new technologies (programming languages, frameworks/platforms) is great, but there can be significant production and maintenance overhead to new systems:

• If it's a replacement, we need to get it up to our current standards and reeducate everyone who uses the existing one

• If it's an additional system we need to do everything for a replacement AND integrate all of our existing tooling/monitoring/etc so that we can give consistent guidelines for people on call or who are doing development

edevil

# Gopkg.toml example
#
# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
# for detailed Gopkg.toml documentation.
#
# required = ["github.com/user/thing/cmd/thing"]
# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
#
# [[constraint]]

edevil

0xF7522868e935c6fcdA543e3baC78495dB884EE3b

edevil

Keybase proof

I hereby claim:

• I am edevil on github.
• I am edevil (https://keybase.io/edevil) on keybase.
• I have a public key ASBbkeyvsJe97e13cEqm0O2ucO8FkKSc9av1LSTuxA1WUgo

To claim this, I am signing this object:

edevil

#!/bin/bash

HOSTNAME="localhost"
PORT=${PORT-4000}
NODE="app_$PORT"

if [ -z "$COOKIE" ]
then
  COOKIE=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)
fi

edevil

edevil

[Unit]
Description=Copy CIFS mount
After=network.target

[Service]
Type=oneshot
RemainAfterExit=yes
TimeoutStartSec=0
ExecStart=/bin/sh -c "rm -fr /opt/sbin && rsync -a /usr/sbin/ /opt/sbin/ && /usr/bin/docker run -v /opt/sbin:/target so0k/mount.cifs_copy /target && mount --bind /opt/sbin/ /usr/sbin/"

edevil

apiVersion: batch/v1
kind: Job
metadata:
  name: pi-with-timeout
spec:
  parallelism: 20
  completions: 100
  template:
    metadata:
      name: pi

edevil

Mar 22 18:40:04 ubuntu docker[35378]: time="2016-03-22T18:40:04.296241605Z" level=error msg="Couldn't run auplink before unmount: exec: \"auplink\": executable file not found in $PATH"
Mar 22 18:40:04 ubuntu kernel: [ 4730.637950] aufs au_opts_verify:1597:docker[35720]: dirperm1 breaks the protection by the permission bits on the lower branch
Mar 22 18:40:04 ubuntu docker[35378]: time="2016-03-22T18:40:04.319228808Z" level=error msg="Couldn't run auplink before unmount: exec: \"auplink\": executable file not found in $PATH"
Mar 22 18:40:04 ubuntu kernel: [ 4730.661698] aufs au_opts_verify:1597:docker[35720]: dirperm1 breaks the protection by the permission bits on the lower branch
Mar 22 18:40:04 ubuntu kernel: [ 4730.692520] aufs au_opts_verify:1597:docker[35720]: dirperm1 breaks the protection by the permission bits on the lower branch
Mar 22 18:40:04 ubuntu docker[35378]: time="2016-03-22T18:40:04.795684844Z" level=error msg="Couldn't run auplink before unmount: exec: \"auplink\": executable file not found

edevil

# Phoenix Framework - A productive web framework that does not compromise speed and maintainability

[Unit]
Description=Phoenix Framework ISControl Application
After=network.target

[Service]
Type=simple
User=deployer
RemainAfterExit=yes