Installing GitHub Enterprise Server on VMware

Prerequisites

• You must have a GitHub Enterprise license file. For more information, see "Setting up a trial of GitHub Enterprise Server" and "About licenses for GitHub Enterprise."
• You must have a VMware vSphere ESXi Hypervisor, applied to a bare metal machine that will run your GitHub Enterprise Server instances. We support versions 5.5 to 7.0. The ESXi Hypervisor is free and does not include the (optional) vCenter Server. For more information, see the VMware ESXi documentation.
• You will need access to a vSphere Client. If you have vCenter Server you can use the vSphere Web Client. For more information, see the VMware guide "Log in to vCenter Server by Using the vSphere Web Client."

Hardware considerations

• Minimum requirements
• Storage
• CPU and memory

Minimum requirements

We recommend different hardware configurations depending on the number of user licenses for your GitHub Enterprise Server instance. If you provision more resources than the minimum requirements, your instance will perform and scale better.

User licenses	x86-64 vCPUs	Memory	Root storage	Attached (data) storage
Trial, demo, or 10 light users	4	32 GB	200 GB	150 GB
10 to 3,000	8	48 GB	200 GB	300 GB
3,000 to 5000	12	64 GB	200 GB	500 GB
5,000 to 8000	16	96 GB	200 GB	750 GB
8,000 to 10,000+	20	160 GB	200 GB	1000 GB

If you plan to enable GitHub Actions for the users of your instance, more resources are required.

vCPUs	Memory	Maximum Concurrency
8	64 GB	740 jobs
16	128 GB	1250 jobs
32	160 GB	2700 jobs
64	256 GB	4500 jobs
96	384 GB	7000 jobs

For more information about these requirements, see "Getting started with GitHub Actions for GitHub Enterprise Server."

If you plan to enable Container registry for the users of your instance, more resources are required. For more information about these requirements, see "Getting started with GitHub Packages for your enterprise."

For more information about adjusting resources for an existing instance, see "Increasing storage capacity" and "Increasing CPU or memory resources."

Storage

We recommend a high-performance SSD with high input/output operations per second (IOPS) and low latency for GitHub Enterprise Server. Workloads are I/O intensive. If you use a bare metal hypervisor, we recommend directly attaching the disk or using a disk from a storage area network (SAN).

Your instance requires a persistent data disk separate from the root disk. For more information, see "System overview."

To configure GitHub Actions, you must provide external blob storage. For more information, see "Getting started with GitHub Actions for GitHub Enterprise Server."

The available space on the root filesystem will be 50% of the total disk size. You can resize your instance's root disk by building a new instance or using an existing instance. For more information, see "System overview" and "Increasing storage capacity."

CPU and memory

The CPU and memory resources that GitHub Enterprise Server requires depend on the levels of activity for users, automations, and integrations.

Any VMs you provision for your GitHub Enterprise Server instance must use the x86-64 CPU architecture. Other architectures are not supported, such as Aarch64 or arm64.

If you plan to enable GitHub Actions for the users of your GitHub Enterprise Server instance, you may need to provision additional CPU and memory resources for your instance. For more information, see "Getting started with GitHub Actions for GitHub Enterprise Server."

When you increase CPU resources, we recommend adding at least 6.5 GB of memory for each vCPU (up to 16 vCPUs) that you provision for the instance. When you use more than 16 vCPUs, you don't need to add 6.5 GB of memory for each vCPU, but you should monitor your instance to ensure it has enough memory.

For more information about monitoring the capacity and performance of GitHub Enterprise Server, see "Monitoring your appliance."

You can increase your instance's CPU or memory resources. For more information, see "Increasing CPU or memory resources."

Downloading the GitHub Enterprise Server image

1. Download your license. For more information, see "Downloading your license for GitHub Enterprise."

2. Navigate to the image you want to use for your new instance.

   • Navigate to Release notes.
   • In the right sidebar, click the version you want to download.
   • Click Download GitHub Enterprise Server X.X.X.

3. Under "GitHub On-premises", select the "Select your hypervisor" dropdown menu and click VMware ESXi/vSphere (OVA).

4. Click Download for VMware ESXi/vSphere (OVA).

Creating the GitHub Enterprise Server instance

To create the instance, you'll need to import the GitHub Enterprise Server image to your virtual machine and attach an additional storage volume for your instance data. For more information, see "Hardware considerations."

1. Using the vSphere Windows Client or the vCenter Web Client, import the GitHub Enterprise Server image you downloaded. For instructions, see the VMware guide "Deploy an OVF or OVA Template."
   • When selecting a datastore, choose one with sufficient space to host the VM's disks. For the minimum hardware specifications recommended for your instance size, see "Hardware considerations." We recommend thick provisioning with lazy zeroing.
   • Leave the Power on after deployment box unchecked, as you will need to add an attached storage volume for your repository data after provisioning the VM.
2. Create a new virtual disk to use as an attached storage volume for your instance data, and configure the size based on your user license count. If reusing an existing disk, ensure that the disk is empty and there are no partitions. For instructions, see the VMware guide "Add a New Hard Disk to a Virtual Machine."

Configuring the GitHub Enterprise Server instance

To configure the instance, you must upload a license file, set the Management Console password, configure the instance's settings, and restart the instance.

1. Copy the virtual machine's public DNS name, and paste it into a web browser.
2. At the prompt, upload your license file and set a management console password. For more information, see "Managing your license for GitHub Enterprise."
3. In the Management Console, configure and save your desired settings. For more information, see "Configuring your enterprise."
4. The instance will restart automatically.
5. Click Visit your instance.

Further reading

• "System overview"
• "About upgrades to new releases"