Auto renew ssl cert for UniFI and UniFi-Video

The following script was taken from here

Added unifi-video support. Script uses letsencrypt to get the cert and automatically updates the UniFi and UniFi-Video Keystores.

Would be a good idea to check and make sure the the UniFi-Video cameras reconnect and still work after running script.

Installing Let’s Encrypt

Install Let’s Encrypt with the following

sudo apt install letsencrypt

And generate a cert for your domain with

sudo certbot certonly -d unifi.domain.com

Executing Script to Renew Certificate

Copy the script at the bottom of this post and put it in a file called gen-unifi-cert.sh
Run the script to insert the cert into the UniFi and UniFi-Video services.

sudo ./gen-unifi-cert.sh -e email@domain.com -d unifi.domain.com

You can run it with no or the -h argument to show the options and arguments to use.

./gen-unifi-cert.sh -h

Setup Cron Job

You should be able to add the following to a cronjob to auto renew the certificate. Replace path to script and domain name.

30 2 * * * /root/gen-unifi-cert.sh -r -d unifi.domain.com

UniFi SSL Cert Renew Script

#!/usr/bin/env bash
# Added support to do UniFi and UniFi controllers at the same time using the same cert.
# Original script from https://git.sosdg.org/brielle/lets-encrypt-scripts/raw/branch/master/gen-unifi-cert.sh
# More info here https://www.reddit.com/r/Ubiquiti/comments/43v23u/using_letsencrypt_with_the_unifi_controller/ 
# And here https://www.reddit.com/r/Ubiquiti/comments/43v23u/using_letsencrypt_with_the_unifi_controller/
# Modified script from here: https://github.com/FarsetLabs/letsencrypt-helper-scripts/blob/master/letsencrypt-unifi.sh
# Modified by: Brielle Bruns <bruns@2mbit.com>
# Download URL: https://source.sosdg.org/brielle/lets-encrypt-scripts
# Version: 1.7
# Last Changed: 09/26/2018
# 02/02/2016: Fixed some errors with key export/import, removed lame docker requirements
# 02/27/2016: More verbose progress report
# 03/08/2016: Add renew option, reformat code, command line options
# 03/24/2016: More sanity checking, embedding cert
# 10/23/2017: Apparently don't need the ace.jar parts, so disable them
# 02/04/2018: LE disabled tls-sni-01, so switch to just tls-sni, as certbot 0.22 and later automatically fall back to http/80 for auth
# 05/29/2018: Integrate patch from Donald Webster <fryfrog[at]gmail.com> to cleanup and improve tests
# 09/26/2018: Change from TLS to HTTP authenticator

# Location of LetsEncrypt binary we use.  Leave unset if you want to let it find automatically
#LEBINARY="/usr/src/letsencrypt/certbot-auto"

PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

function usage() {
  echo "Usage: $0 -d <domain> [-e <email>] [-r] [-i]"
  echo "  -d <domain>: The domain name to use."
  echo "  -e <email>: Email address to use for certificate."
  echo "  -r: Renew domain."
  echo "  -i: Insert only, use to force insertion of certificate."
}

while getopts "hird:e:" opt; do
  case $opt in
    i) onlyinsert="yes";;
    r) renew="yes";;
    d) domains+=("$OPTARG");;
    e) email="$OPTARG";;
    h) usage
       exit;;
  esac
done

DEFAULTLEBINARY="/usr/bin/certbot /usr/bin/letsencrypt /usr/sbin/certbot
  /usr/sbin/letsencrypt /usr/local/bin/certbot /usr/local/sbin/certbot
  /usr/local/bin/letsencrypt /usr/local/sbin/letsencrypt
  /usr/src/letsencrypt/certbot-auto /usr/src/letsencrypt/letsencrypt-auto
  /usr/src/certbot/certbot-auto /usr/src/certbot/letsencrypt-auto
  /usr/src/certbot-master/certbot-auto /usr/src/certbot-master/letsencrypt-auto"

if [[ ! -v LEBINARY ]]; then
  for i in ${DEFAULTLEBINARY}; do
    if [[ -x ${i} ]]; then
      LEBINARY=${i}
      echo "Found LetsEncrypt/Certbot binary at ${LEBINARY}"
      break
    fi
  done
fi

# Command line options depending on New or Renew.
NEWCERT="--renew-by-default certonly"
RENEWCERT="-n renew"

# Check for required binaries
if [[ ! -x ${LEBINARY} ]]; then
  echo "Error: LetsEncrypt binary not found in ${LEBINARY} !"
  echo "You'll need to do one of the following:"
  echo "1) Change LEBINARY variable in this script"
  echo "2) Install LE manually or via your package manager and do #1"
  echo "3) Use the included get-letsencrypt.sh script to install it"
  exit 1
fi

if [[ ! -x $( which keytool ) ]]; then
  echo "Error: Java keytool binary not found."
  exit 1
fi

if [[ ! -x $( which openssl ) ]]; then
  echo "Error: OpenSSL binary not found."
  exit 1
fi

if [[ ! -z ${email} ]]; then
  email="--email ${email}"
else
  email=""
fi

shift $((OPTIND -1))
for val in "${domains[@]}"; do
        DOMAINS="${DOMAINS} -d ${val} "
done

MAINDOMAIN=${domains[0]}

if [[ -z ${MAINDOMAIN} ]]; then
  echo "Error: At least one -d argument is required"
  usage
  exit 1
fi

if [[ ${renew} == "yes" ]]; then
  LEOPTIONS="${RENEWCERT}"
else
  LEOPTIONS="${email} ${DOMAINS} ${NEWCERT}"
fi

#if [[ ${onlyinsert} != "yes" ]]; then
if [[ ${onlyinsert} == "yes" ]]; then
  echo "Firing up standalone authenticator on TCP port 80 and requesting cert..."
  ${LEBINARY} --server https://acme-v01.api.letsencrypt.org/directory \
              --agree-tos --standalone --preferred-challenges http ${LEOPTIONS}
fi

#if [[ ${onlyinsert} != "yes" ]] && md5sum -c "/etc/letsencrypt/live/${MAINDOMAIN}/cert.pem.md5" &>/dev/null; then
if [[ ${onlyinsert} == "yes" ]] && md5sum -c "/etc/letsencrypt/live/${MAINDOMAIN}/cert.pem.md5" &>/dev/null; then
  echo "Cert has not changed, not updating controller."
  exit 0
else
  echo "Cert has changed or -i option was used, updating controller..."
  TEMPFILE=$(mktemp)
  CATEMPFILE=$(mktemp)

  # Identrust cross-signed CA cert needed by the java keystore for import.
  # Can get original here: https://www.identrust.com/certificates/trustid/root-download-x3.html
  cat > "${CATEMPFILE}" <<'_EOF'
-----BEGIN CERTIFICATE-----
MIIDSjCCAjKgAwIBAgIQRK+wgNajJ7qJMDmGLvhAazANBgkqhkiG9w0BAQUFADA/
MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT
DkRTVCBSb290IENBIFgzMB4XDTAwMDkzMDIxMTIxOVoXDTIxMDkzMDE0MDExNVow
PzEkMCIGA1UEChMbRGlnaXRhbCBTaWduYXR1cmUgVHJ1c3QgQ28uMRcwFQYDVQQD
Ew5EU1QgUm9vdCBDQSBYMzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB
AN+v6ZdQCINXtMxiZfaQguzH0yxrMMpb7NnDfcdAwRgUi+DoM3ZJKuM/IUmTrE4O
rz5Iy2Xu/NMhD2XSKtkyj4zl93ewEnu1lcCJo6m67XMuegwGMoOifooUMM0RoOEq
OLl5CjH9UL2AZd+3UWODyOKIYepLYYHsUmu5ouJLGiifSKOeDNoJjj4XLh7dIN9b
xiqKqy69cK3FCxolkHRyxXtqqzTWMIn/5WgTe1QLyNau7Fqckh49ZLOMxt+/yUFw
7BZy1SbsOFU5Q9D8/RhcQPGX69Wam40dutolucbY38EVAjqr2m7xPi71XAicPNaD
aeQQmxkqtilX4+U9m5/wAl0CAwEAAaNCMEAwDwYDVR0TAQH/BAUwAwEB/zAOBgNV
HQ8BAf8EBAMCAQYwHQYDVR0OBBYEFMSnsaR7LHH62+FLkHX/xBVghYkQMA0GCSqG
SIb3DQEBBQUAA4IBAQCjGiybFwBcqR7uKGY3Or+Dxz9LwwmglSBd49lZRNI+DT69
ikugdB/OEIKcdBodfpga3csTS7MgROSR6cz8faXbauX+5v3gTt23ADq1cEmv8uXr
AvHRAosZy5Q6XkjEGB5YGV8eAlrwDPGxrancWYaLbumR9YbK+rlmM6pZW87ipxZz
R8srzJmwN0jP41ZL9c8PDHIyh8bwRLtTcm1D9SZImlJnt1ir/md2cXjbDaJWFBM5
JDGFoqgCWjBH4d1QB7wCCZAA62RjYJsWvIjJEubSfZGL+T0yjWW06XyxV3bqxbYo
Ob8VZRzI9neWagqNdwvYkQsEjgfbKbYK7p2CNTUQ
-----END CERTIFICATE-----
_EOF

  md5sum "/etc/letsencrypt/live/${MAINDOMAIN}/cert.pem" > "/etc/letsencrypt/live/${MAINDOMAIN}/cert.pem.md5"
  echo "Using openssl to prepare certificate..."
  cat "/etc/letsencrypt/live/${MAINDOMAIN}/chain.pem" >> "${CATEMPFILE}"
  openssl pkcs12 -export  -passout pass:aircontrolenterprise \
          -in "/etc/letsencrypt/live/${MAINDOMAIN}/cert.pem" \
          -inkey "/etc/letsencrypt/live/${MAINDOMAIN}/privkey.pem" \
          -out "${TEMPFILE}" -name unifi \
          -CAfile "${CATEMPFILE}" -caname root

  echo "Stopping Unifi and UniFi-Video controllers..."
  systemctl stop unifi unifi-video  

  echo "Removing existing certificate from Unifi protected keystore..."
  keytool -delete -alias unifi -keystore /usr/lib/unifi/data/keystore -deststorepass aircontrolenterprise
  echo "Removing existing certificate from Unifi-Video protected keystore..."
  keytool -delete -alias unifi -keystore /usr/lib/unifi-video/data/keystore -deststorepass ubiquiti
  # following lines are needed for unifi-video
 
  echo "Inserting certificate into Unifi keystore..."
  keytool -trustcacerts -importkeystore \
          -deststorepass aircontrolenterprise \
          -destkeypass aircontrolenterprise \
          -destkeystore /usr/lib/unifi/data/keystore \
          -srckeystore "${TEMPFILE}" -srcstoretype PKCS12 \
          -srcstorepass aircontrolenterprise \
          -alias unifi

  echo "Inserting certificate into Unifi-Video keystore..."
  keytool -trustcacerts -importkeystore \
          -deststorepass ubiquiti \
          -destkeypass ubiquiti \
          -destkeystore /usr/lib/unifi-video/data/keystore \
          -srckeystore "${TEMPFILE}" -srcstoretype PKCS12 \
          -srcstorepass aircontrolenterprise \

          rm -f "${TEMPFILE}" "${CATEMPFILE}"

  mv /usr/lib/unifi-video/data/ufv-truststore{,.old} # Delete old unifi-video keystore
  sleep 5
  echo "Starting Unifi and UniFi-Video controllers..."
  systemctl start unifi unifi-video 

  echo "Done!"
fi

Errors Renewing Lets Encrypt Certificate for UniFi-Video

Had an issue with the Lets Encrypt cert for a UniFi-Video server.  When renewing the cert and reimporting it into the UniFi-Video keystore, the certification was showing out of date.

Issue ended up being something with certbot.

When certbot runs it generates a new cert.pem, chain.pem, fullchain.pem and privkey.pem and puts them in the “/etc/letsencrypt/live/unifi.domain.com/” directory.

The privkey.pem and cert.pem are used to create the keys.p12 file which gets imported into the UniFi-Video keystore.

Apparently the .pem files in “/etc/letsencrypt/live/unifi.domain.com/” are symbolic links to files in “/etc/letsencrypt/archive/unifi.domain.com/”

Upon inspection of the archive directory, multiple cert.pem and privkey.pem files were found with the names cert1.pem, cert2.pem, cert3.pem etc.  Looking at the creation date of the file revealed the symbolic link was referring to an old “cert1.pem” file.

Work around was to stop the unifi-video service and reimport the cert using the latest .pem files in the archive directory.

echo ubiquiti | openssl pkcs12 -export -inkey /etc/letsencrypt/archive/unifi.yourdomain.com/privkey2.pem -in /etc/letsencrypt/archive/unifi.yourdomain.com/cert2.pem -name airvision -out /usr/lib/unifi-video/data/keys.p12 -password stdin
echo y | keytool -importkeystore -srckeystore /etc/letsencrypt/archive/unifi.yourdomain.com/keys.p12 -srcstoretype pkcs12 -destkeystore /usr/lib/unifi-video/data/keystore -storepass ubiquiti -srcstorepass ubiquiti

Remove the old ufv-truststore and start the service.

mv /usr/lib/unifi-video/data/ufv-truststore{,.old}
systemctl start unifi-video

Worked like a charm.

Add a SSL Certificate to Ubiquiti UniFi-Video server using Lets Encrypt

Install certbot

sudo apt-get install python-certbot

Generate certificate.  Change unifi.yourdomain.com to the domain name you have pointing to your UniFi-Video controller.

sudo certbot certonly -d unifi.yourdomain.com

Certbot will create the files in “/etc/letsencrypt/live/unifi.yourdomain.com/”

Now you should stop the unifi service.

systemctl stop unifi-video

The following two commands create and install the keystore for the UniFi-Video application.  These commands were copied from here.  Thanks scobber!

echo ubiquiti | openssl pkcs12 -export -inkey /etc/letsencrypt/live/unifi.yourdomain.com/privkey.pem -in /etc/letsencrypt/live/unifi.yourdomain.com/cert.pem -name airvision -out /usr/lib/unifi-video/data/keys.p12 -password stdin
echo y | keytool -importkeystore -srckeystore /etc/letsencrypt/live/unifi.yourdomain.com/keys.p12 -srcstoretype pkcs12 -destkeystore /usr/lib/unifi-video/data/keystore -storepass ubiquiti -srcstorepass ubiquiti

Remove or rename the Trusted Store.  If you don’t, the cameras will connect, but will not record.  The controller will rebuild the ufv-truststore when it starts up and the cameras will be able to record.

mv /usr/lib/unifi-video/data/ufv-truststore{,.old}

Start the UniFi-Video service

systemctl start unifi-video

Now you can check it by going to https://unifi.yourdomain.com:8443