CloudStack

CloudStack
Name	CloudStack
Developer	Apache Software Foundation
Released	2010
Programming language	Java
Operating system	Linux
Genre	Cloud computing, IaaS
License	Apache License 2.0

CloudStack CloudStack is an open-source infrastructure-as-a-service (IaaS) platform for building, managing, and deploying cloud computing environments. It provides orchestration for virtual machines, networks, storage, and user access, and integrates with hypervisors and management tools used by organizations such as Citrix Systems, AMD, Intel Corporation, IBM, and Red Hat. The project originated from code contributed by Cloud.com and has been developed under the auspices of the Apache Software Foundation alongside projects like Apache Hadoop and Apache Kafka.

Overview

CloudStack implements a multi-tenant, scalable control plane that supports public, private, and hybrid cloud models used by providers including Telefonica, NTT Communications, Wipro, Schneider Electric, and SUSE. Its design emphasizes compatibility with hypervisors such as KVM (kernel virtual machine), VMware ESXi, Xen Project, and integration with ecosystem components like Ceph, Open vSwitch, and MySQL. CloudStack competes with proprietary and open alternatives such as OpenStack, VMware vCloud, Microsoft Azure Stack, and influenced deployments by organizations like NASA and CERN.

Architecture

The architecture separates control, management, and compute layers, with a centralized management server that coordinates agents on hypervisor hosts, storage arrays, and network devices used by vendors like Juniper Networks and Palo Alto Networks. It models resources using constructs familiar to operators of Amazon EC2-style APIs and supports network models comparable to Cisco ACI and OpenFlow controllers. Components include a management plane, database backend commonly backed by MariaDB or PostgreSQL, asynchronous job processing inspired by systems used at Google, and agent protocols analogous to those in Kubernetes node communication.

Deployment and Configuration

Administrators deploy CloudStack on distributions such as Ubuntu, CentOS, Debian, and SUSE Linux Enterprise Server, and configure compute clusters with hypervisors from XenServer vendors or VMware vSphere stacks. Storage can be attached via iSCSI targets from NetApp, Dell EMC, or object stores compatible with Amazon S3 semantics and systems like MinIO and Ceph Object Gateway. Networking setups range from VLAN-backed L2 clouds to software-defined overlays using VXLAN and integrations with Open vSwitch or physical switching from Arista Networks. High-availability patterns borrow practices from HAProxy load balancing and Keepalived VRRP setups and leverage configuration management tools such as Ansible, Puppet, and Chef.

Features and Components

CloudStack exposes features including instance lifecycle management, templates and ISO catalogues, snapshot and backup workflows influenced by Veeam practices, and role-based access control akin to systems at Okta. It includes a web UI and REST API patterned after Amazon EC2 semantics, and supports service offerings like auto-scaling similar to AWS Auto Scaling and network services comparable to OpenStack Neutron. Key components comprise the management server, agent daemons, system virtual machines (console proxy, router), template store, secondary storage, and a usage metering subsystem used by billing platforms like Zuora and WHMCS.

Use Cases and Adoption

Enterprises and service providers use CloudStack for public clouds, private corporate clouds, and hosted managed services offered by firms such as Exoscale and UKCloud. Research institutions like CERN and educational campuses deploy it for compute grids and VDI infrastructures paralleling deployments seen at University of Cambridge and Stanford University. Telecom operators combine CloudStack with NFV functions standardized by ETSI and orchestration tools from ONAP and OpenDaylight for telco cloud initiatives. Managed hosting companies integrate CloudStack with billing, monitoring, and support systems from Nagios and Zabbix.

Development and Community

The project is governed through the Apache Software Foundation meritocratic model with contributions from corporations, independent developers, and user groups such as the CloudStack Community. Releases follow collaborative processes similar to those for Apache HTTP Server and Apache Cassandra, with continuous integration pipelines inspired by practices at Travis CI and Jenkins. Community events include summits and meetups akin to KubeCon and OpenStack Summit, while documentation, mailing lists, and issue tracking adhere to standards practiced across foundations like Linux Foundation projects.

Security and Compliance

CloudStack implements isolation boundaries, role-based access control, network ACLs, and support for secure cryptographic modules comparable to integrations used by HashiCorp Vault and Let's Encrypt for certificate management. Deployments pursue compliance frameworks such as ISO/IEC 27001, SOC 2, and regional data protection regimes influenced by General Data Protection Regulation requirements when used by organizations like Deutsche Telekom or Orange S.A.. Operators commonly integrate intrusion detection and vulnerability scanning solutions from vendors like Qualys and Tenable and leverage hardened Linux distributions and kernel mitigations propagated by Red Hat and Canonical.

Category:Cloud computing software