Are you concerned about setting up a VPC in Apache CloudStack?
This blog article provides a step-by-step guide to Creating a Virtual Private Cloud (VPC) in Apache CloudStack.
What is VPC?
Apache Cloudstack VPC (Virtual Private Cloud) is a networking feature in Apache Cloudstack, an open-source cloud computing platform, that enables users to create isolated and logically defined private cloud environments within a public cloud infrastructure. VPC allows users to have complete control over their network topology and allows them to set up a private network space with multiple tiers of VMs, routers, firewalls, and load balancers.
Key features and components of Apache CloudStack VPC:
Isolated Network Environment in VPC
- VPC allows users to create an isolated network environment with its own private IP address space. This isolation provides enhanced security and separation from other VPCs and the public cloud.
Multiple Tiers in VPC:
- Within a VPC, users can create multiple tiers or subnets to organize their network infrastructure efficiently. Each tier can have its own set of VMs and network services, such as routers, load balancers, and firewalls.
Virtual Router in VPC:
- CloudStack VPC uses a virtual router to provide essential routing capabilities between different tiers within the VPC and also between the VPC and the external network (public cloud or the internet). The virtual router handles network traffic and ensures that packets are correctly forwarded to their destination.
Network ACLs and Security Groups:
- CloudStack VPC allows users to define Network ACLs (Access Control Lists) and Security Groups to control inbound and outbound network traffic to and from the VMs in the VPC. This helps in enhancing security and access control for the VPC resources.
VPN Connectivity in VPC:
- VPC supports the creation of VPN (Virtual Private Network) connections, which allows users to establish secure communication between their on-premises infrastructure and the VPC in the public cloud. This feature enables hybrid cloud scenarios and facilitates secure data transfer.
Load Balancing in VPC:
- Users can set up load balancers within the VPC to distribute incoming traffic across multiple VMs in a tier. This ensures high availability and scalability for applications running within the VPC.
Network Offering in VPC:
- CloudStack VPC offers multiple network offerings that define the specifications and capabilities of the VPC, such as the number of subnets, IP address ranges, and supported services. Users can select the appropriate network offering based on their requirements.
Elastic IP Addresses:
- CloudStack VPC provides Elastic IP addresses (EIPs) that can be associated with VMs to allow them to have a static and public-facing IP address. This allows VMs to be accessible from the internet without changing their IP addresses.
VPC CREATION in Apache CloudStack
- Login into your cloudstack panel using your login credentials.
- Under network click on VPC link.
- Then click on “Add VPC”.
- Specify a name and description for your VPC.
- Select the Zone from the drop-down list. Then add the CIDR range for your VPC. For demo purpose, we have added 192.168.4.0/24 as default CIDR range for this VPC.
- Select the required VPC offering from the drop-down list. For demo purpose, we have selected the Default VPC offering. Then click on OK.
- VPC has been created successfully.
CREATING VPC TIER
- Once VPC is created, click on the VPC and select networks link. Then click on Add new Tier.
- Provide a name and select the network offering from the drop-down list. We have selected Offering for Isolated VPC networks with source NAT service enabled for this demo.
- Then provide the corresponding gateway and subnet mask for your network tier.
- We select the pre-defined ACL default_allow policy from the drop-down list and click on OK.
- Tier has been created successfully.
- Once you created tier, expand the instance topic and click on Add instance.
- Select the corresponding Zone and select the required OS template.
- Then select required compute offering.
- Select the required VPC network for your VM and provide the name and click on Launch virtual instance button.
- Virtual machine created successfully.
ASSIGNING PUBLIC IP ADDRESS TO A VM
- To assign public address to a VM, click on acquire new IP.
- It will display new IP address from the public IP pool. Click OK to accept it.
- Click on the newly acquired public IP and select port forwarding.
- Provide private and public port and click on Add VM.
- Select the corresponding VM and click on OK.
- Now you will able to access the VM using public IP.
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