sudo apt-get update
sudo -H -E apt -y -q=3 --no-install-recommends install "${PKG_LIST[@]}"
+# If you have a issue with Let's Encrypt certificate when cloning repo due to DST Root CA X3 Expiration:
+# https://letsencrypt.org/docs/dst-root-ca-x3-expiration-september-2021/
+# remove outdated certificate from system
+sudo rm -rf /usr/share/ca-certificates/mozilla/DST_Root_CA_X3.crt
+# update ca-certificates
+sudo update-ca-certificates --fresh --verbose
+
# Enable and start docker
docker --version
sudo systemctl enable docker