Fixed compilation errors

Abstract/abstract.tex

@@ -49,6 +49,9 @@
 κάποια ειδική γνώση πάνω σε τεχνικά ζητήματα αλλά ούτε και στον τομέα της
 ασφάλειας υποδομών και των λειτουργικών συστημάτων.
 
+\vskip 60pt
+\noindent \textbf{Λέξεις κλειδιά:} Νέφος, Ασφάλεια, Εικονικοποίηση, Δοχεία, Μικρο-υπηρεσίες, Αυτοματοποίηση
+
 }
 
 \clearpage  % Abstract ended, start a new page

Abstract/abstractenglish.tex

@@ -0,0 +1,60 @@
+\abstractenglish{
+% skip indentation just for this paragraph
+\textenglish{
+
+\noindent Today, more and more people rely on IaaS services over traditional
+on-premise infrastructure to provide operational support to applications,
+services and business processes. This is because in this way this way, the
+costs of an organization or business are reduced as long as there is no need
+expenditure/investment on the purchase of equipment and the operational costs
+of using services IaaS is based on flexible billing models based on usage (of
+infrastructure resources that offered). In addition, it is possible to scale
+the offered remote infrastructure depending on the needs of the organisation
+and the current workload of the services and applications to be supported. In
+this way, the responsibility for and maintenance of the equipment to third
+parties while at the same time introducing a new model of trust between the
+user/organisation and the cloud provider. The increase interest by enterprises
+in virtualisation technologies which are a key the foundation of IaaS services,
+but also the rapid rise in popularity of technologies container technologies
+such as Docker has in turn begun to drive the adoption of the architectural
+microservices architecture for application development. An architecture based
+on both on virtualization technologies for housing applications in cloud
+infrastructures and container technologies for partitioning their functions,
+providing a an appropriate level of performance and scalability
+\footfullcite{awsMicroservices}. However, they remain directly addressable.
+security issues that may affect the cloud itself and/or the technologies on
+which it is based.
+
+}
+
+\clearpage
+
+\textenglish{
+
+In this paper we will first analyse the security issues related to the cloud
+and in particular those related to virtualization and container technologies.
+Then, we will analyze how these 2 technologies can be used with more safety
+security. But the purpose of the paper goes beyond that and moves to a
+practical level, proposing the solution of a tool that can implement in this
+way the proposed safe use of these technologies. In particular, this tool does
+not not only can create virtual machines across multiple cloud providers but
+also harden them in an automated manner. In addition, it is capable of
+installing these virtual machines the Docker container machine, which it can
+also harden. The main goal of the work is to make it easier for an organization
+to install and configure in an automated manner a secure, distributed
+environment (pro- host and operation) for the deployment and operation of a
+microservices application. This automation lies in the correct configuration of
+the tool, which does not require and does not require any special knowledge of
+technical or security issues. infrastructure and operating systems.
+
+}
+
+\vskip 60pt
+
+\textenglish{
+\noindent \textbf{Keywords:} Cloud, Security, Virtualization, Containers, Micro-services, Automation
+}
+
+}
+
+\clearpage  % Abstract ended, start a new page