Platform Support
This section lists the recommended requirements for operating systems, virtual machine instances, and VPC for implementing the Chef Automate High Availability (HA) in your network infrastructure.
Software Requirements
| Operating Systems | Supported Version |
|---|---|
| Red Hat Enterprise Linux (64 Bit OS) | 7, 8. For 8 or above versions, the SELinux configuration must be permissive. The SELinux configuration is enforced in RHEL 8. Red Hat Enterprise Linux derivatives include Amazon Linux v1 (using RHEL 6 packages) and v2 (using RHEL 7packages). |
| Ubuntu (64 Bit OS) | 16.04.x, 18.04.x, 20.04.x |
| Centos (64 Bit OS) | 7 |
| Amazon Linux 2 (64 Bit OS) | 2 (kernel 5.10) |
Hardware Requirements
The hardware configuration is according to the performance benchmarking tests based on the assumptions listed below:
| Assumption | Value | Unit |
|---|---|---|
| Number of Nodes sending data | 5000 | |
| Frequency of Compliance Scan | 1 | Per Hour |
| Frequency of Client runs (Infra runs) | 1 | Per Hour |
| Frequency of Event Feed | 1 | Per Hour |
| Data Retention policy | 1 | Days |
| Compliance scan report size | 400 | KB |
| Client Run (Infra run) size | 300 | KB |
| Event Feed update size | 2 | KB |
| No. of Shards in OpenSearch Index | 2 |
The machine requirements based on the above assumptions are listed below:
| Instance | Count | vCPU | RAM | Storage Size(/hab) | AWS Machine Type | Additional Space |
|---|---|---|---|---|---|---|
| Chef Automate | 2 | 2 | 8 | 80 GB | m5.large | /tmp=5% /root=20% |
| Chef Infra Server | 2 | 2 | 8 | 80 GB | m5.large | /tmp=5% /root=20% |
| Postgresql DB | 3 | 2 | 8 | 150 GB | m5.large | /tmp=5% /root=20% |
| Opensearch DB | 3 | 2 | 8 | 58.9 GB | m5.large | /tmp=5% /root=20% |
| Bastion Machine | 1 | 2 | 8 | 150 GB | m5.large | /tmp=5% /root=20% |
Note
Click here to calculate the actual estimate of the configuration using the sample calculator.
Note
- For OpenSearch and PostgresSQL, a minimum of three node clusters is required.
- For production, OpenSearch volume size also depends on the number of nodes and frequency of Chef Infra Client runs and compliance scans.
- Chef Automate bundle comes with chef-server version 14.15.10
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