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Merge pull request #3371 from papanito/papanito/enhande-installation-requirements-rancher-issue-28840

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feat: enhance installation requirements for issue #rancher/28840
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Catherine Luse
2021-06-30 09:20:06 -07:00
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parent 4281400af9 677e59658e
commit 8959dffc48
1 changed files with 22 additions and 14 deletions
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content/rancher/v2.5/en/installation/requirements/_index.md
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@@ -11,18 +11,26 @@ This page describes the software, hardware, and networking requirements for the
Make sure the node(s) for the Rancher server fulfill the following requirements: Make sure the node(s) for the Rancher server fulfill the following requirements:
- [Operating Systems and Container Runtime Requirements](#operating-systems-and-container-runtime-requirements) - [Operating Systems and Container Runtime Requirements](#operating-systems-and-container-runtime-requirements)
- [RKE Specific Requirements](#rke-specific-requirements)
- [K3s Specific Requirements](#k3s-specific-requirements)
- [RancherD Specific Requirements](#rancherd-specific-requirements)
- [RKE2 Specific Requirements](#rke2-specific-requirements)
- [Installing Docker](#installing-docker)
- [Hardware Requirements](#hardware-requirements) - [Hardware Requirements](#hardware-requirements)
- [CPU and Memory](#cpu-and-memory) - [CPU and Memory](#cpu-and-memory)
- [RKE and Hosted Kubernetes](#rke-and-hosted-kubernetes) - [RKE and Hosted Kubernetes](#rke-and-hosted-kubernetes)
- [K3s Kubernetes](#k3s-kubernetes) - [K3s Kubernetes](#k3s-kubernetes)
- [RancherD](#rancherd) - [RancherD](#rancherd)
- [RKE2](#rke2-kubernetes) - [RKE2 Kubernetes](#rke2-kubernetes)
- [CPU and Memory for Rancher before v2.4.0](#cpu-and-memory-for-rancher-before-v2-4-0) - [Docker](#docker)
- [Ingress](#ingress) - [Ingress](#ingress)
- [Ingress for RKE2](#ingress-for-rke2)
- [Ingress for EKS](#ingress-for-eks)
- [Disks](#disks) - [Disks](#disks)
- [Networking Requirements](#networking-requirements) - [Networking Requirements](#networking-requirements)
- [Node IP Addresses](#node-ip-addresses) - [Node IP Addresses](#node-ip-addresses)
- [Port Requirements](#port-requirements) - [Port Requirements](#port-requirements)
- [RancherD on SELinux Enforcing CentOS 8 or RHEL 8 Nodes](#rancherd-on-selinux-enforcing-centos-8-or-rhel-8-nodes)
For a list of best practices that we recommend for running the Rancher server in production, refer to the [best practices section.]({{<baseurl>}}/rancher/v2.5/en/best-practices/deployment-types/) For a list of best practices that we recommend for running the Rancher server in production, refer to the [best practices section.]({{<baseurl>}}/rancher/v2.5/en/best-practices/deployment-types/)
@@ -44,6 +52,8 @@ The `ntp` (Network Time Protocol) package should be installed. This prevents err
Some distributions of Linux may have default firewall rules that block communication with Helm. We recommend disabling firewalld. For Kubernetes 1.19 and 1.20, firewalld must be turned off. Some distributions of Linux may have default firewall rules that block communication with Helm. We recommend disabling firewalld. For Kubernetes 1.19 and 1.20, firewalld must be turned off.
> If you don't feel comfortable doing so you might check suggestions in the [respective issue](https://github.com/rancher/rancher/issues/28840). Some users were successful [creating a separate firewalld zone with a policy of ACCEPT for the Pod CIDR](https://github.com/rancher/rancher/issues/28840#issuecomment-787404822).
If you plan to run Rancher on ARM64, see [Running on ARM64 (Experimental).]({{<baseurl>}}/rancher/v2.5/en/installation/options/arm64-platform/) If you plan to run Rancher on ARM64, see [Running on ARM64 (Experimental).]({{<baseurl>}}/rancher/v2.5/en/installation/options/arm64-platform/)
### RKE Specific Requirements ### RKE Specific Requirements
@@ -99,8 +109,6 @@ These CPU and memory requirements apply to each host in the Kubernetes cluster w
These requirements apply to RKE Kubernetes clusters, as well as to hosted Kubernetes clusters such as EKS. These requirements apply to RKE Kubernetes clusters, as well as to hosted Kubernetes clusters such as EKS.
| Deployment Size | Clusters | Nodes | vCPUs | RAM | | Deployment Size | Clusters | Nodes | vCPUs | RAM |
| --------------- | ---------- | ------------ | -------| ------- | | --------------- | ---------- | ------------ | -------| ------- |
| Small | Up to 150 | Up to 1500 | 2 | 8 GB | | Small | Up to 150 | Up to 1500 | 2 | 8 GB |