how to set up a keycloak server in Linux

cd /opt/
wget https://downloads.jboss.org/keycloak/7.0.0/keycloak-7.0.0.tar.gz
tar -xvzf keycloak-7.0.0.tar.gz
mv keycloak-7.0.0.tar.gz keycloak

adduser techrunnr
chown techrunnr.techrunnr -R /opt/keycloak

sudo su - techrunnr

cd /opt/keycloak

./bin/jboss-cli.sh 'embed-server,/subsystem=undertow/server=default-server/http-listener=default:write-attribute(name=proxy-address-forwarding,value=true)'


./bin/jboss-cli.sh 'embed-server,/socket-binding-group=standard-sockets/socket-binding=proxy-https:add(port=443)'


./bin/jboss-cli.sh 'embed-server,/subsystem=undertow/server=default-server/http-listener=default:write-attribute(name=redirect-socket,value=proxy-https)'

cat > /etc/systemd/system/keycloak.service <<EOF

[Unit]
Description=Keycloak
After=network.target

[Service]
Type=idle
User=keycloak
Group=keycloak
ExecStart=/opt/keycloak/current/bin/standalone.sh -b 0.0.0.0
TimeoutStartSec=600
TimeoutStopSec=600

[Install]
WantedBy=multi-user.target
EOF

systemctl daemon-reload
systemctl enable keycloak
systemctl start keycloak

./bin/add-user-keycloak.sh -u admin -p YOURPASS -r master

upstream keycloak {
# Use IP Hash for session persistence
ip_hash;

# List of Keycloak servers
server 127.0.0.1:8080;
}


server {
listen 80;
server_name keycloak.domain.com;

# Redirect all HTTP to HTTPS
location / { 
return 301 https://\$server_name\$request_uri;
}
}

server {
listen 443 ssl http2;
server_name keycloak.domain.com;

ssl_certificate /etc/pki/tls/certs/my-cert.cer;
ssl_certificate_key /etc/pki/tls/private/my-key.key;
ssl_session_cache shared:SSL:1m;
ssl_prefer_server_ciphers on;

location / {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_pass http://ke