File Storage

When clusters report back to Fairwinds Insights, the server stores that data as files (for example JSON report payloads). You need a report storage backend that the application can read and write through an S3-style API.

The Fairwinds Insights Helm chart configures this via reportStorage.strategy. For self-hosted production, use:

Strategy	Use case
rustfs (default)	In-cluster RustFS (installed by the chart) or any external S3-compatible endpoint (RustFS, R2, etc.)
s3	Amazon S3 using the default AWS SDK credential chain and no custom endpoint (typical AWS installs)

Unknown or deprecated reportStorage.strategy values (for example minio) cause template rendering to fail, so mistakes are caught early.

Why chart 7.x uses RustFS instead of bundled MinIO

Fairwinds Insights chart 7.x removed the bundled object-storage / MinIO subchart and defaults to RustFS for in-cluster report storage. That change reflects:

• MinIO upstream lifecycle: The MinIO server README.md on GitHub states that the repository is no longer maintained, that the community edition is distributed as source only (no official pre-built community binaries), and that legacy pre-built releases are no longer maintained. Continuing to treat chart-bundled MinIO as the default would lean on a dependency whose public maintenance story has shifted.

• A single supported default path: Chart 7.x standardizes on the RustFS Helm chart, or on Amazon S3 / another S3-compatible store you operate, so self-hosted docs and values map to one model. See the fairwinds-insights chart changelog.

If you upgrade from an older chart, the reportStorage.strategy: minio value, minio: values, and reportStorage.minioHost no longer exist. Migrate to rustfs (in-cluster or external S3-compatible URL) or to s3 for native AWS. The sections below describe each path.

Default: in-cluster RustFS

For self-hosted installs, the chart defaults to installing the RustFS Helm chart as a dependency (rustfs.install: true) and sets reportStorage.strategy: rustfs.

The chart wires the Insights workloads to:

• REPORT_STORAGE_STRATEGY=rustfs
• REPORT_STORAGE_S3_ENDPOINT pointing at the in-cluster RustFS service (for example http://<release>-fw-rustfs-svc:9000, where <release> is the Helm release name—not necessarily the Kubernetes namespace—and the suffix depends on rustfs.nameOverride, default fw-rustfs)
• REPORT_STORAGE_S3_ACCESS_KEY_ID / REPORT_STORAGE_S3_SECRET_ACCESS_KEY from the RustFS credentials secret (keys RUSTFS_ACCESS_KEY and RUSTFS_SECRET_KEY when RustFS is installed by this chart)

Default values.yaml in the chart skews RustFS toward a small, single-node footprint (standalone mode, one replica, ingress off). You should tune persistent volume size and resources for production; see upstream values with:

helm repo add rustfs https://charts.rustfs.com/
helm show values rustfs/rustfs

Example overrides in your own values.yaml:

reportStorage:
  strategy: rustfs
  bucket: reports
  region: us-east-1

rustfs:
  install: true
  storageclass:
    name: ""              # set your StorageClass if the cluster default is not suitable
    dataStorageSize: 100Gi
  resources:
    requests:
      cpu: 200m
      memory: 512Mi

Bucket creation job

When rustfs.install is true, the chart can run an optional create-bucket Job (rustfs.createBucketJob) that uses a short-lived aws-cli pod against the in-cluster endpoint. It is on by default (rustfs.createBucketJob.enabled: true in chart values.yaml). So that the bucket exists before you rely on the app, prefer:

helm upgrade --install ... --wait --wait-for-jobs

If you disable the job or use external storage, create the bucket yourself to match reportStorage.bucket.

External S3-compatible storage (including external RustFS)

If RustFS (or another S3-compatible system) runs outside the cluster, turn off the subchart and point Insights at the API with explicit endpoint and credentials.

reportStorage:
  strategy: rustfs
  bucket: reports
  region: us-east-1
  s3Endpoint: https://rustfs.example.com   # full URL to the S3 API
  s3CredentialsSecret: my-s3-credentials  # Kubernetes secret in the same namespace

rustfs:
  install: false

The secret referenced by reportStorage.s3CredentialsSecret must contain:

• accessKeyId
• secretAccessKey

(Those key names are used when rustfs.install is false; they differ from the in-cluster RustFS secret key names.)

If strategy is rustfs and rustfs.install is false, the chart requires reportStorage.s3Endpoint and reportStorage.s3CredentialsSecret; otherwise template rendering fails.

Amazon S3 (native)

To use AWS S3 with the default AWS credential provider chain (no custom S3 endpoint), set:

reportStorage:
  strategy: s3
  bucket: your-bucket-name
  region: us-east-1

rustfs:
  install: false

Keep rustfs.install false so the chart does not deploy in-cluster RustFS and does not expect RustFS endpoint variables for this path.

IAM policy

The IAM user or role used for S3 must have at least the following permissions (replace your-bucket-name with your bucket):

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": ["s3:ListBucket"],
      "Resource": ["arn:aws:s3:::your-bucket-name"]
    },
    {
      "Effect": "Allow",
      "Action": [
        "s3:PutObject",
        "s3:GetObjectAcl",
        "s3:GetObject",
        "s3:DeleteObject",
        "s3:PutObjectAcl"
      ],
      "Resource": ["arn:aws:s3:::your-bucket-name/*"]
    }
  ]
}

Credentials

Provide AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY in the main Insights secret (by default fwinsights-secrets, configurable via options.secretName):

apiVersion: v1
kind: Secret
metadata:
  name: fwinsights-secrets
type: Opaque
stringData:
  AWS_ACCESS_KEY_ID: "..."
  AWS_SECRET_ACCESS_KEY: "..."

If you use other AWS integrations (for example SES for email), they typically use the same secret keys unless you configure alternatives in the chart.

Summary

• Prefer rustfs + rustfs.install: true for the default self-hosted stack (RustFS subchart + PVC-backed data).
• Prefer rustfs + rustfs.install: false + s3Endpoint + s3CredentialsSecret for any external S3-compatible API.
• Use s3 + rustfs.install: false + AWS credentials in fwinsights-secrets for standard Amazon S3.
• Chart 7.x no longer supports MinIO via strategy: minio or embedded MinIO values; use RustFS or AWS S3 instead (see Why chart 7.x uses RustFS instead of bundled MinIO).

For the full list of knobs (ingress, affinity, image overrides, etc.), see the fairwinds-insights chart README and helm show values fairwinds-stable/fairwinds-insights.