Serve files in a web server from a directory with a single command

ws.sh

#!/bin/bash
# Usage: ws.sh /path/to/directory
# Makes all files and directories under `directory` available from port 80 (HTTP) on your local machine

# Check that a path was provided
if [ -z "$1" ]
  then
    echo "No target directory provided"
    exit 1
fi

echo -e "Mounting `realpath $1`"

# As a convenience, display the machine's local ip
echo -e "Hostname \e[1m$(hostname -I | cut -d' ' -f1)\e[0m"

# The nginx configuration used to serve static files
# autoindex gives us a directory at the index route
CONF="server { listen 80; server_name  _; location / { autoindex on; root /www/data/; } }"

# Randomely generated a name for the container
NAME="$(cat /dev/urandom | tr -cd 'a-f0-9' | head -c 32)"

# Serve the static files using nginx, mount the target directory as a volume
docker run --name ${NAME} -v `realpath $1`:/www/data/ -p 80:80 -d nginx >/dev/null

# Wait for the container to come up
until [ "`docker inspect -f {{.State.Running}} ${NAME}`"=="true" ]; do
    sleep 0.1;
done;

# Add the nginx configuration
docker exec ${NAME} bash -c "echo '${CONF}' > /etc/nginx/conf.d/default.conf"

# Reload nginx to pick up this configuration
docker exec ${NAME} nginx -s reload &>/dev/null

echo "Directory hosted. Press CTRL-C to exit."

# Attach to the container, mainly to trap signals
docker attach ${NAME} &>/dev/null