Environment Requirements
This page summarizes the some requirements for installing and using KubeSphere.
System Requirements
System | Minimum Requirements (Each node) |
---|---|
Ubuntu 16.04, 18.04 | CPU: 2 Cores, Memory: 4 GB, Disk Space: 40 GB |
Debian Buster, Stretch | CPU: 2 Cores, Memory: 4 GB, Disk Space: 40 GB |
CentOS 7.x | CPU: 2 Cores, Memory: 4 GB, Disk Space: 40 GB |
Red Hat Enterprise Linux 7 | CPU: 2 Cores, Memory: 4 GB, Disk Space: 40 GB |
SUSE Linux Enterprise Server 15 /openSUSE Leap 15.2 | CPU: 2 Cores, Memory: 4 GB, Disk Space: 40 GB |
Dependency Requirements
Dependency | Kubernetes Version ≥ 1.18 | Kubernetes Version < 1.18 |
---|---|---|
socat | Required | Optional but recommended |
conntrack | Required | Optional but recommended |
ebtables | Optional but recommended | Optional but recommended |
ipset | Optional but recommended | Optional but recommended |
Container Runtime Requirements
Supported Container Runtime | Version |
---|---|
Docker | 19.3.8+ |
containerd | Latest |
CRI-O (experimental, not fully tested) | Latest |
iSula (experimental, not fully tested) | Latest |
Network Requirements
- Make sure the DNS address in
/etc/resolv.conf
is available. Otherwise, it may cause some issues of DNS in the cluster. - If your network configuration uses firewall rules or security groups, you must ensure infrastructure components can communicate with each other through specific ports. It is recommended that you turn off the firewall. For more information, see Port Requirements.
- Supported CNI plugins: Calico and Flannel. Others (such as Cilium and Kube-OVN) may also work but note that they have not been fully tested.
Supported Kubernetes Versions
Installation Tool | KubeSphere version | Supported Kubernetes versions |
---|---|---|
KubeKey | 3.3.2 | v1.20.x, v1.21.x, * v1.22.x, * v1.23.x, * v1.24.x |
ks-installer | 3.3.2 | v1.20.x, v1.21.x, * v1.22.x, * v1.23.x, * v1.24.x |
Note
For Kubernetes versions with an asterisk, some features of edge nodes may be unavailable due to incompatability. Therefore, if you want to use edge nodes, you are advised to install Kubernetes v1.21.x.
Supported CSI Plugins
Kubernetes has announced that in-tree volume plugins will be removed from Kubernetes in version 1.21. For more information, see Kubernetes In-Tree to CSI Volume Migration Moves to Beta. Therefore, it is recommended that you install CSI plugins instead.
Supported CSI plugins:
Supported Web Browsers for Accessing the Console
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