server.xml

<?xml version="1.0" encoding="UTF-8"?>
<Server port="8005" shutdown="SHUTDOWN">
    <Listener className="org.apache.catalina.startup.VersionLoggerListener" />
    <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
    <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
    <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />

    <Service name="Catalina">
        <Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" compression="on" compressionMinSize="1024" compressableMimeType="application/json" />

        <Engine name="Catalina" defaultHost="localhost">
            <Realm className="org.apache.catalina.realm.LockOutRealm">
                <Realm className="org.apache.catalina.realm.JDBCRealm" driverName="org.postgresql.Driver"
                    connectionName="${db_user}" connectionPassword="${db_pass}"
                    connectionURL="jdbc:postgresql://${db_host}:5432/${db_name}"
                    roleNameCol="usro_type" userCredCol="user_pwd" userNameCol="user_id" userRoleTable="users_roles" userTable="users">
                    <CredentialHandler className="org.apache.catalina.realm.MessageDigestCredentialHandler" algorithm="md5" />
                </Realm>
            </Realm>
            <Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true">
                <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" prefix="localhost_access_log." suffix=".txt" pattern="%h %l %u %t &quot;%r&quot; %s %b" />
            </Host>
        </Engine>
    </Service>
</Server>