Setup nginx with letsencrypt automatic https using docker. Tested on Ubuntu.

run.sh

#!/bin/sh

# File: /opt/nginx-proxy/run.sh

# If you are on ubuntu and have docker installed, you can automate the setup by running below command.
# Make sure to adjust the DEFAULT_EMAIL and WORKDIR according to your need. The command:
: '
export DEFAULT_EMAIL=myemail@mydomain.com WORKDIR=/opt/nginx-proxy && \
sudo mkdir ${WORKDIR} && \
curl -o /tmp/nginx-proxy.sh https://gist.githubusercontent.com/wzulfikar/957917c8ad84a6047bdb0831215daa51/raw/cf7acfe4fecbcd2cd9acf83ef0382cfc03fbbc63/run.sh && \
sed -i "s/DEFAULT_EMAIL=\(.*\) #/DEFAULT_EMAIL=${DEFAULT_EMAIL} #/" /tmp/nginx-proxy.sh && \
sudo mv /tmp/nginx-proxy.sh ${WORKDIR}/run.sh && \
sudo chmod +x ${WORKDIR}/run.sh && \
sudo ${WORKDIR}/run.sh
'
# P.S: You don't need sudo if you have configured your docker to run without sudo.

DEFAULT_EMAIL=myemail@domain.com  # Add your email for letsencrypt notifications
WORKDIR=/opt/nginx-proxy          # Directory where this script is stored

# Create optional config
if [ ! -f "network_internal.conf" ]; then
  touch ${WORKDIR}/network_internal.conf
  echo '# Add config to restrict containers to internal network only.' >> ${WORKDIR}/network_internal.conf
  echo '# See: https://github.com/nginx-proxy/nginx-proxy#internet-vs-local-network-access' >> ${WORKDIR}/network_internal.conf
fi

# run nginx-proxy
docker run --detach \
    --restart unless-stopped \
    --name nginx-proxy \
    --publish 80:80 \
    --publish 443:443 \
    --volume ${WORKDIR}/network_internal.conf:/etc/nginx/network_internal.conf \
    --volume /etc/nginx/certs \
    --volume /etc/nginx/vhost.d \
    --volume /usr/share/nginx/html \
    --volume /var/run/docker.sock:/tmp/docker.sock:ro \
    jwilder/nginx-proxy

# run letsencrypt-nginx-proxy-companion
docker run --detach \
    --name nginx-proxy-letsencrypt \
    --restart unless-stopped \
    --volumes-from nginx-proxy \
    --volume /var/run/docker.sock:/var/run/docker.sock:ro \
    --env "DEFAULT_EMAIL=${DEFAULT_EMAIL}" \
    jrcs/letsencrypt-nginx-proxy-companion

This is a sample output of how it looks like if you use the command (line 8-14) to do the setup.

In image:

• First red line is where I ran the command
• Second red line is where I check the logs of letsencrypt container to verify that it's running

Once done, this setup will watch for any new containers that have environment variable VIRTUAL_HOST and LETSENCRYPT_HOST configured.

For example, if you have a wordpress container that has env value of VIRTUAL_HOST=mydomain.com and LETSENCRYPT_HOST=mydomain.com, this setup will create the corresponding letsencrypt certificate for the domain.