This is the shell script to use with Shopify Slate on Ubuntu to get a proper SSL cert setup for your Slate workflow.

ssl-check.sh

function ssl-check() {
       f=~/.localhost_ssl;
       ssl_crt=$f/server.crt
       ssl_key=$f/server.key
       b=$(tput bold)
       c=$(tput sgr0)
       ips=$(hostname -I)
       local_ips=($(echo $ips | tr " " "\n"))
       # local_ip=999.999.999 # (uncomment for testing)
       domains=(
           "localhost"
           "${local_ips[@]}"
       )
       if [[ ! -f $ssl_crt ]]; then
           echo -e "\n🛑  ${b}Couldn't find a Slate SSL certificate:${c}"
           make_key=true
       elif [[ ! $(openssl x509 -noout -text -in $ssl_crt | grep $local_ip) ]]; then
           echo -e "\n🛑  ${b}Your IP Address has changed:${c}"
           make_key=true
       else
           echo -e "\n✅  ${b}Your IP address is still the same.${c}"
       fi
       if [[ $make_key == true ]]; then
           echo -e "Generating a new Slate SSL certificate...\n"
           count=$(( ${#domains[@]} - 1))
           mkcert ${domains[@]}
           # Create Slate's default certificate directory, if it doesn't exist
           test ! -d $f && mkdir $f
           # It appears mkcert bases its filenames off the number of domains passed after the first one.
           # This script predicts that filename, so it can copy it to Slate's default location.
           if [[ $count = 0 ]]; then
               mv ./localhost.pem $ssl_crt
               mv ./localhost-key.pem $ssl_key
           else
               mv ./localhost+$count.pem $ssl_crt
               mv ./localhost+$count-key.pem $ssl_key
           fi
       fi
   }