---
title: "GET /v2/clusters/{cluster_id}/preflight-requirements"
method: GET
path: "/v2/clusters/{cluster_id}/preflight-requirements"
tags: ["installer"]
---

# GET /v2/clusters/{cluster_id}/preflight-requirements

`GET /v2/clusters/{cluster_id}/preflight-requirements`

Get preflight requirements for a cluster.

## Path parameters

- `cluster_id` string, uuid, required

## Response `200`

Success.

- PreflightHardwareRequirements
  - `operators` OperatorHardwareRequirements[] — Preflight operators hardware requirements
    - `operator_name` string — Unique name of the operator. Corresponds to name property of the monitored-operator, i.e. "lso", "cnv", etc.
    - `dependencies` string[] — List of other operator unique names that are required to be installed. Corresponds to name property of the monitored-operator, i.e. "lso", "cnv", etc.
    - `requirements` HostTypeHardwareRequirementsWrapper
      - `worker` HostTypeHardwareRequirements
        - `quantitative` ClusterHostRequirementsDetails
          - `cpu_cores` integer — Required number of CPU cores
          - `ram_mib` integer — Required number of RAM in MiB
          - `disk_size_gb` integer — Required disk size in GB
          - `installation_disk_speed_threshold_ms` integer — Required installation disk speed in ms
          - `network_latency_threshold_ms` number, double, nullable — Maximum network average latency (RTT) at L3 for role.
          - `packet_loss_percentage` number, double, nullable — Maximum packet loss allowed at L3 for role.
          - `tpm_enabled_in_bios` boolean — Whether TPM module should be enabled in host's BIOS.
        - `qualitative` string[] — Host requirements that cannot be quantified at the time of calculation. Descriptions or formulas of requiements
      - `master` HostTypeHardwareRequirements
        - `quantitative` ClusterHostRequirementsDetails
          - `cpu_cores` integer — Required number of CPU cores
          - `ram_mib` integer — Required number of RAM in MiB
          - `disk_size_gb` integer — Required disk size in GB
          - `installation_disk_speed_threshold_ms` integer — Required installation disk speed in ms
          - `network_latency_threshold_ms` number, double, nullable — Maximum network average latency (RTT) at L3 for role.
          - `packet_loss_percentage` number, double, nullable — Maximum packet loss allowed at L3 for role.
          - `tpm_enabled_in_bios` boolean — Whether TPM module should be enabled in host's BIOS.
        - `qualitative` string[] — Host requirements that cannot be quantified at the time of calculation. Descriptions or formulas of requiements
  - `ocp` HostTypeHardwareRequirementsWrapper
    - `worker` HostTypeHardwareRequirements
      - `quantitative` ClusterHostRequirementsDetails
        - `cpu_cores` integer — Required number of CPU cores
        - `ram_mib` integer — Required number of RAM in MiB
        - `disk_size_gb` integer — Required disk size in GB
        - `installation_disk_speed_threshold_ms` integer — Required installation disk speed in ms
        - `network_latency_threshold_ms` number, double, nullable — Maximum network average latency (RTT) at L3 for role.
        - `packet_loss_percentage` number, double, nullable — Maximum packet loss allowed at L3 for role.
        - `tpm_enabled_in_bios` boolean — Whether TPM module should be enabled in host's BIOS.
      - `qualitative` string[] — Host requirements that cannot be quantified at the time of calculation. Descriptions or formulas of requiements
    - `master` HostTypeHardwareRequirements
      - `quantitative` ClusterHostRequirementsDetails
        - `cpu_cores` integer — Required number of CPU cores
        - `ram_mib` integer — Required number of RAM in MiB
        - `disk_size_gb` integer — Required disk size in GB
        - `installation_disk_speed_threshold_ms` integer — Required installation disk speed in ms
        - `network_latency_threshold_ms` number, double, nullable — Maximum network average latency (RTT) at L3 for role.
        - `packet_loss_percentage` number, double, nullable — Maximum packet loss allowed at L3 for role.
        - `tpm_enabled_in_bios` boolean — Whether TPM module should be enabled in host's BIOS.
      - `qualitative` string[] — Host requirements that cannot be quantified at the time of calculation. Descriptions or formulas of requiements

## Other responses

- `401` — Unauthorized.
- `403` — Forbidden.
- `404` — Error.
- `405` — Method Not Allowed.
- `500` — Error.

---

[API](https://skmtc.net/openshift/apis/assistedinstall.md) · [All operations](https://skmtc.net/openshift/apis/assistedinstall/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/openshift/assistedinstall/versions/9d0b4936ca97/schema)