Tag Archive: bash

Create and Trust Local SSL Certificate

I use Jason Wilder’s nginx reverse proxy container as the gateway to my various Docker dev environments. Among it’s other services, it provides SSL termination, so I don’t need to worry about configuring SSL in every container I run.

The set up is pretty simple. Make a directory of certificates and mount it into the container at /etc/nginx/certs. In docker-compose.yml, it would look something like:

version: "2"
    image: jwilder/nginx-proxy
      - "80:80"
      - "443:443"
      - ./nginx/certs:/etc/nginx/certs
      - /var/run/docker.sock:/tmp/docker.sock

You’ll need to create a new certificate for each domain you want to serve. Add them to the certs dir, and the proxy will find them and serve those domains with SSL.

I’ve created a script that will create the certificate and, on OS X at least, add it to your login keychain as a trusted certificate so you can avoid SSL warnings from your browser. Create the file create-cert.sh in your certs directory and run it from there. E.g., certs/create-cert.sh mysite.dev.

CERTDIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
if [ $# -lt 1 ]; then
  echo 1>&2 "Usage: $0 domain.name"
  exit 2
cat > ${DOMAIN}.cnf < <-EOF
  distinguished_name = req_distinguished_name
  x509_extensions = v3_req
  prompt = no
  CN = *.${DOMAIN}
  keyUsage = keyEncipherment, dataEncipherment
  extendedKeyUsage = serverAuth
  subjectAltName = @alt_names
  DNS.1 = *.${DOMAIN}
  DNS.2 = ${DOMAIN}
openssl req \
  -new \
  -newkey rsa:2048 \
  -sha1 \
  -days 3650 \
  -nodes \
  -x509 \
  -keyout ${DOMAIN}.key \
  -out ${DOMAIN}.crt \
  -config ${DOMAIN}.cnf
rm ${DOMAIN}.cnf
if [[ $OSTYPE == darwin* ]]; then
  sudo security add-trusted-cert -d -r trustRoot -k $HOME/Library/Keychains/login.keychain ${DOMAIN}.crt

Reload your proxy, and you can now visit https://mysite.dev/.

Downgrade PHP to 5.2 on Ubuntu 10.04

As of version 6.14, Drupal works with PHP 5.3, but many essential modules still issue warnings (usually due to passing expressions by reference). If your Ubuntu 10.04 (Lucid Lynx) server is running 5.3, this script will automate the downgrade to the latest 5.2 by telling aptitude to use the source lists for Ubuntu 9.10 (Karmic Koala).

Thanks to Nick Veenhof, mrkandy, and their many commenters, from whom this script is derived.

php_installed=`dpkg -l | grep php| awk '{print $2}' |tr "\n" " "`
# remove all php packge
sudo aptitude purge `dpkg -l | grep php| awk '{print $2}' |tr "\n" " "`
# use karmic for php pakage
# pin-params: a (archive), c (components), v (version), o (origin) and l (label).
echo -e "Package: php5\nPin: release a=karmic\nPin-Priority: 991\n" | sudo tee /etc/apt/preferences.d/php > /dev/null
apt-cache search php5-|grep php5-|awk '{print "Package:", $1,"\nPin: release a=karmic\nPin-Priority: 991\n"}'|sudo tee -a /etc/apt/preferences.d/php > /dev/null
apt-cache search -n libapache2-mod-php5 |awk '{print "Package:", $1,"\nPin: release a=karmic\nPin-Priority: 991\n"}'| sudo tee -a /etc/apt/preferences.d/php > /dev/null
echo -e "Package: php-pear\nPin: release a=karmic\nPin-Priority: 991\n" | sudo tee -a /etc/apt/preferences.d/php > /dev/null
# add karmic to source list
egrep '(main restricted|universe|multiverse)' /etc/apt/sources.list|grep -v "#"| sed s/lucid/karmic/g | sudo tee /etc/apt/sources.list.d/karmic.list > /dev/null
# update package database (use apt-get if aptitude crash)
sudo apt-get update
# install php
sudo apt-get install $php_installed
sudo aptitude hold `dpkg -l | grep php5| awk '{print $2}' |tr "\n" " "`

Of course, make sure to restart Apache when you’re finished.