http_client_full_default_options.xml

<?xml version="1.0" encoding="utf-8" ?>
<container xmlns="http://symfony.com/schema/dic/services"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xmlns:framework="http://symfony.com/schema/dic/symfony"
           xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd
        http://symfony.com/schema/dic/symfony http://symfony.com/schema/dic/symfony/symfony-1.0.xsd">

    <framework:config>
        <framework:http-client>
            <framework:default-options
                    proxy="proxy.org"
                    bindto="127.0.0.1"
                    timeout="3.5"
                    max-duration="10.1"
                    verify-peer="true"
                    max-redirects="2"
                    http-version="2.0"
                    verify-host="true"
                    cafile="/etc/ssl/cafile"
                    capath="/etc/ssl"
                    local-cert="/etc/ssl/cert.pem"
                    local-pk="/etc/ssl/private_key.pem"
                    passphrase="password123456"
                    ciphers="RC4-SHA:TLS13-AES-128-GCM-SHA256"
            >
                <framework:header name="X-powered">PHP</framework:header>
                <framework:resolve host="localhost">127.0.0.1</framework:resolve>
                <framework:peer-fingerprint>
                    <framework:pin-sha256>14s5erg62v1v8471g2revg48r7==</framework:pin-sha256>
                    <framework:pin-sha256>jsda84hjtyd4821bgfesd215bsfg5412=</framework:pin-sha256>
                    <framework:md5>sdhtb481248721thbr=</framework:md5>
                </framework:peer-fingerprint>
            </framework:default-options>
        </framework:http-client>
    </framework:config>
</container>