「Rancher Requirements」修訂間的差異
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:: etcd database requires an odd number of nodes so that it can always elect a leader with a majority of the etcd cluster. |
:: etcd database requires an odd number of nodes so that it can always elect a leader with a majority of the etcd cluster. |
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: general installation requirements for OS, container runtime, hardware, and networking. |
: general installation requirements for OS, container runtime, hardware, and networking. |
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! Deployment Size || Clusters || Nodes || vCPUs || RAM |
! Deployment Size || Clusters || Nodes || vCPUs || RAM |
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於 2021年1月27日 (三) 14:58 的修訂
RKE
high-availability RKE cluster
- Three Linux nodes, typically virtual machines, in an infrastructure provider such as Amazon’s EC2, Google Compute Engine, or vSphere.
- These nodes must be in the same region/data center. You may place these servers in separate availability zones.
- Rancher server data is stored on etcd database that runs on all three nodes.
- etcd is a distributed reliable key-value store for the most critical data of a distributed system, with a focus: Simple, Secure, Fast & Reliable.
- etcd database requires an odd number of nodes so that it can always elect a leader with a majority of the etcd cluster.
- general installation requirements for OS, container runtime, hardware, and networking.
Deployment Size Clusters Nodes vCPUs RAM Small Up to 150 Up to 1500 2 8 GB Medium Up to 300 Up to 3000 4 16 GB Large Up to 500 Up to 5000 8 32 GB X-Large Up to 1000 Up to 10,000 16 64 GB XX-Large Up to 2000 Up to 20,000 32 128 GB
- Contact Rancher for more than 2000 clusters and/or 20,000 nodes.
- A load balancer to direct front-end traffic to the three nodes.
- A DNS record to map a URL to the load balancer. This will become the Rancher server URL, and downstream Kubernetes clusters will need to reach it.