Generate SSL certificate on Mac OS and add to virtual host

1.Create config file first

STEP 1
cat > openssl.cnf <<-EOF
    [req]
    distinguished_name = req_distinguished_name
    x509_extensions = v3_req
    prompt = no
    [req_distinguished_name]
    CN = *.ua.l
    [v3_req]
    keyUsage = keyEncipherment, dataEncipherment
    extendedKeyUsage = serverAuth
    subjectAltName = @alt_names
    [alt_names]
    DNS.1 = *.ua.l
    DNS.2 = ua.l
EOF

2.Generate ssl.crt file

STEP 2
openssl req \
    -new \
    -newkey rsa:2048 \
    -sha1 \
    -days 3650 \
    -nodes \
    -x509 \
    -keyout ssl.key \
    -out ssl.crt \
    -config openssl.cnf

3.Move certificate to apache folder

STEP 3
mv ssl.crt /etc/apache2/ssl/ua.l.crt
mv ssl.key /etc/apache2/ssl/ua.l.key

rm openssl.cnf

4.Open the certificate in Keychain Access.

STEP 4
cd /etc/apache2/ssl
open /Applications/Utilities/Keychain\ Access.app ua.l.crt

Click Don't Trust.
Select the newly imported certificate, which should appear at the bottom of the certificate list, and click the [ｉ] button.
In the popup window, click the ▶ button to the left of Trust, and select Always Trust for When using this certificate:.
Close the popup window.
When prompted, enter your password again and click Update Settings.
Close Keychain Access.

5.Add ssl to your virtual hosts

STEP 5
<VirtualHost *:443>
    ServerAdmin webmaster@localhost
    ServerName ua.l
    ServerAlias *.ua.l
    DocumentRoot "/Users/ivan/code/htdocs/ua.l/public"
    ErrorLog /var/log/apache2/ua.l_ssl.log

    SSLEngine on
    SSLCertificateFile /etc/apache2/ssl/ua.l.crt
    SSLCertificateKeyFile /etc/apache2/ssl/ua.l.key

</VirtualHost>