Files
rustfs/helm/README.md
Zhengchao An e2f394a897 feat(helm): flexible drivesPerNode topology with backward-compatible per-pool defaults (#4901)
* helm chart: one data drive per node - fix1

* refactor(helm): prevent negative or 0 replicaCount

Co-authored-by: Copilot <copilot@github.com>

* refactor(helm): remove env REPLICA_COUNT

* feat(helm): default no logs directory to force stdout

Co-authored-by: Copilot <copilot@github.com>

* feat(helm): add drivesPerNode

* feat(helm): correct default parity with 4 nodes /  1 drive per node

* conditional render of RUSTFS_OBS_LOG_DIRECTORY

* feat(chart): add table doc for parity

* fix(chart): handle invalid annotation objects

* fix(chart): move logging and obsevability options together; default for kubernetes output to stdout

* feat(chart): better table doc for parity

* fix(chart): leave RUSTFS_OBS_LOG_DIRECTORY empty, or the defaults will attempt to write to readonly fs

* fix(chart): chart defaults as the previous version: 4 nodes with 4 drives per node

* feat(chart): render RUSTFS_STORAGE_CLASS_STANDARD in configmap

* minor fix for pvcAnnotations

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Cristian Chiru <cristi.chiru@gmail.com>

* fix(chart): better drivesPerNode handling

* fix(chart): obs_log_directory default non empty again to preserve previous deployments compatibility

* fix(chart): proper drivesPerNode impl

* fix(chart): values clarification for empty vs unset `obs_log_directory`

* feat(chart): add service externalIPs

* feat(helm): add optional service labels

* fix(helm): merge service labels

* fix(helm): storageclass pvcAnnotations

* fix(chart): move logging and obsevability options together; default for kubernetes output to stdout

* fix(helm): remove duplicate keys

* fix(helm): default drivesPerNode null, keep legacy chart behavior

* feat(helm): add template test for externalIPs

* fix(helm): per-pool drivesPerNode inference, restore regression tests

Repairs the drivesPerNode feature from #2693 so it renders and stays
upgrade-safe:

- define the missing drives inference (rustfs.poolDrives) and compute it
  per pool inside rustfs.pools, so mixed 4x4 + 16x1 pool deployments keep
  their exact legacy volumeClaimTemplates when drivesPerNode is unset
- restore the $poolsEnabled definition dropped in the rebase (chart failed
  to render at all)
- fix .Values references inside the pool range (dot is the pool there) and
  keep per-pool storageclass pvcAnnotations overrides working
- make rustfs.volumes derive the drive range from pool drives instead of
  the pod count, and relax the pools.list 4-or-16 restriction to >= 2
- reject drivesPerNode=0 explicitly instead of silently inferring
- keep default rendering identical to main: storage_class_standard stays
  unrendered by default, obs_endpoint.use_stdout stays false, clusterDomain
  value restored
- restore the clusterDomain/mTLS SAN/explicit-volumes regression tests that
  the branch deleted, keeping the new topology tests

---------

Signed-off-by: Cristian Chiru <cristi.chiru@gmail.com>
Co-authored-by: Cristian Chiru <cristi.chiru@gmail.com>
Co-authored-by: Copilot <copilot@github.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
2026-07-16 09:02:04 +00:00

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# RustFS Helm Mode
RustFS helm chart supports **standalone** and **distributed** mode.
- **Standalone mode**: one pod with one PVC (single node, single disk).
- **Distributed mode** (**default**): multiple pods with multiple PVCs (multiple nodes, multiple disks).
## Distributed topology
The distributed topology is defined by two parameters:
- `replicaCount` — number of pods (nodes) in the StatefulSet.
- `drivesPerNode` — number of data PVCs mounted on each pod.
Total drives in the cluster = `replicaCount * drivesPerNode`.
When `drivesPerNode` is left unset, the chart automatically infers a
backward-compatible value from each pool's replica count (with pools
disabled there is a single pool driven by the top-level `replicaCount`):
| `replicaCount` | Inferred `drivesPerNode` | Legacy equivalent |
|----------------|--------------------------|-------------------|
| 4 | 4 | old default 4×4 |
| anything else | 1 | old 16×1, etc. |
You can override the inference by setting `drivesPerNode` explicitly, e.g.
`--set drivesPerNode=2` for an 8×2 cluster.
**IMPORTANT**: Kubernetes does **not** allow changes to
`volumeClaimTemplates` in an existing StatefulSet. If you want to change
`drivesPerNode` after installation you must delete the StatefulSet
(with `--cascade=orphan` to keep pods and PVCs) and recreate it, or perform a
full reinstall.
---
## Upgrade notes
Upgrading from chart versions that did **not** have `drivesPerNode` is safe
without manual intervention:
- Existing 4×4 deployments (default `replicaCount=4`) continue to receive 4
drives per node because the chart infers `drivesPerNode=4`.
- Existing 16×1 deployments (`replicaCount=16`) continue to receive 1 drive
per node because the chart infers `drivesPerNode=1`.
If you previously set `replicaCount=16` and now want a different topology,
set both `replicaCount` and `drivesPerNode` explicitly.
---
# Parameters Overview
| Parameter | Type | Default value | Description |
|-----|------|---------|-------------|
| affinity.nodeAffinity | object | `{}` | |
| affinity.podAntiAffinity.enabled | bool | `true` | |
| affinity.podAntiAffinity.topologyKey | string | `"kubernetes.io/hostname"` | |
| clusterDomain | string | `"cluster.local"` | Kubernetes cluster DNS domain used to build in-cluster FQDNs for `RUSTFS_VOLUMES` (distributed mode) and mTLS server certificate SANs. Override for clusters not using the default `cluster.local`. Provide the DNS root only, without a `svc.` prefix or leading/trailing dots. |
| commonLabels | object | `{}` | Labels to add to all deployed objects. |
| config.rustfs.address | string | `":9000"` | |
| config.rustfs.console_address | string | `":9001"` | |
| config.rustfs.console_enable | string | `"true"` | |
| config.rustfs.domains | string | `""` | Enable virtual host mode. |
| config.rustfs.log_level | string | `"info"` | |
| config.rustfs.obs_environment | string | `"development"` | |
| config.rustfs.obs_log_directory | string | `"/logs"` | Log directory inside the RustFS container. Set to `""` to disable log PVCs and mounts. |
| config.rustfs.region | string | `"us-east-1"` | |
| config.rustfs.volumes | string | `""` | |
| config.rustfs.log_rotation.size | int | `"100"` | Default log rotation size mb for rustfs. |
| config.rustfs.log_rotation.time | string | `"hour"` | Default log rotation time for rustfs. |
| config.rustfs.log_rotation.keep_files | int | `"30"` | Default log keep files for rustfs. |
| config.rustfs.metrics.enabled | bool | `false` | Toggle metrics export. |
| config.rustfs.metrics.endpoint | string | `""` | Dedicated metrics endpoint. |
| config.rustfs.scanner.speed | string | `""` | Scanner speed preset: `fastest`, `fast`, `default`, `slow`, `slowest`. |
| config.rustfs.scanner.delay | string | `""` | Override scanner sleep multiplier with `RUSTFS_SCANNER_DELAY` (`0` through `10000`). |
| config.rustfs.scanner.max_wait_secs | string | `""` | Override maximum scanner sleep in seconds with `RUSTFS_SCANNER_MAX_WAIT_SECS`. |
| config.rustfs.scanner.cycle_secs | string | `""` | Override scanner cycle interval in seconds with `RUSTFS_SCANNER_CYCLE`. |
| config.rustfs.scanner.start_delay_secs | string | `""` | Override scanner cycle interval in seconds with `RUSTFS_SCANNER_START_DELAY_SECS`. |
| config.rustfs.scanner.cycle_max_duration_secs | string | `""` | Cap one scanner cycle's runtime in seconds with `RUSTFS_SCANNER_CYCLE_MAX_DURATION_SECS` (`0` disables). |
| config.rustfs.scanner.cycle_max_objects | string | `""` | Cap objects processed by one scanner cycle with `RUSTFS_SCANNER_CYCLE_MAX_OBJECTS` (`0` disables). |
| config.rustfs.scanner.cycle_max_directories | string | `""` | Cap directories entered by one scanner cycle with `RUSTFS_SCANNER_CYCLE_MAX_DIRECTORIES` (`0` disables). |
| config.rustfs.scanner.bitrot_cycle_secs | string | `""` | Override periodic deep bitrot cycle with `RUSTFS_SCANNER_BITROT_CYCLE_SECS`; `false`, `off`, `no`, or `disabled` disables it. |
| config.rustfs.scanner.idle_mode | string | `""` | Override scanner idle throttling flag (`RUSTFS_SCANNER_IDLE_MODE`). |
| config.rustfs.scanner.cache_save_timeout_secs | string | `""` | Override scanner cache save timeout in seconds with `RUSTFS_SCANNER_CACHE_SAVE_TIMEOUT_SECS` (minimum `1`). |
| config.rustfs.scanner.max_concurrent_set_scans | string | `""` | Cap concurrent scanner set tasks with `RUSTFS_SCANNER_MAX_CONCURRENT_SET_SCANS` (`0` keeps topology-derived concurrency). |
| config.rustfs.scanner.max_concurrent_disk_scans | string | `""` | Cap concurrent scanner disk bucket walks per set with `RUSTFS_SCANNER_MAX_CONCURRENT_DISK_SCANS` (`0` keeps disk-count-derived concurrency). |
| config.rustfs.scanner.yield_every_n_objects | string | `""` | Yield to the async runtime every N scanned objects with `RUSTFS_SCANNER_YIELD_EVERY_N_OBJECTS` (`0` disables extra yield). |
| config.rustfs.scanner.alert_excess_versions | string | `""` | Set version count threshold for scanner alerts with `RUSTFS_SCANNER_ALERT_EXCESS_VERSIONS`. |
| config.rustfs.scanner.alert_excess_version_size | string | `""` | Set retained version byte threshold for scanner alerts with `RUSTFS_SCANNER_ALERT_EXCESS_VERSION_SIZE`. |
| config.rustfs.scanner.alert_excess_folders | string | `""` | Set direct subfolder threshold for scanner alerts with `RUSTFS_SCANNER_ALERT_EXCESS_FOLDERS`. |
| config.rustfs.obs_endpoint.enabled | bool | `false` | Whether to send metrics/logs/traces/profilings to remote endpoint, eg, OLTP. |
| config.rustfs.obs_endpoint.base_endpoint | string | `""` | Root OTLP/HTTP endpoint, e.g. http://otel-collector:4318. |
| config.rustfs.obs_endpoint.use_stdout | bool | `false` | Whether to output logs to stdout in addition the OLTP. |
| config.rustfs.obs_endpoint.metrics.enabled | bool | `false` | Whether to send metrics to remote endpoint. |
| config.rustfs.obs_endpoint.metrics.endpoint | string | `""` | Remote endpoint url for metrics. |
| config.rustfs.obs_endpoint.trace.enabled | bool | `false` | Whether to send trace to remote endpoint. |
| config.rustfs.obs_endpoint.trace.endpoint | string | `""` | Remote endpoint url for trace. |
| config.rustfs.obs_endpoint.logs.enabled | bool | `false` | Whether to send logs to remote endpoint. |
| config.rustfs.obs_endpoint.logs.endpoint | string | `""` | Remote endpoint url for logs. |
| config.rustfs.obs_endpoint.profiling.enabled | bool | `false` | Whether to send profiling to remote endpoint. |
| config.rustfs.obs_endpoint.profiling.endpoint | string | `""` | Remote endpoint url for profiling. |
| config.rustfs.kms.enabled | bool | `false`| Whether to enable kms. |
| config.rustfs.kms.type | string | `vault`| The kms type that RustFS supported. |
| config.rustfs.kms.vault.vault_backend | string | `""`| The vault backend, `vault-kv2` or `vault-transit`. |
| config.rustfs.kms.vault.vault_address | string | `""`| The vault address. |
| config.rustfs.kms.vault.vault_token | string | `""`| The vault token. |
| config.rustfs.kms.vault.vault_mount_path | string | `"transit"`| The vault mount path, only works if `vault_backend` equals `vault-transit` . |
| config.rustfs.kms.vault.default_key | string | `"transit"`| The master key id for RustFS. |
| extraEnv | map | `[]` | Extra environment variables for RustFS container. |
| extraVolumes | list | `[]` | Extra volumes to add to the pod spec. Supported in both standalone (Deployment) and distributed (StatefulSet) modes. |
| extraVolumeMounts | list | `[]` | Extra volume mounts to add to the RustFS container. Supported in both standalone (Deployment) and distributed (StatefulSet) modes. |
| containerSecurityContext.capabilities.drop[0] | string | `"ALL"` | |
| containerSecurityContext.readOnlyRootFilesystem | bool | `true` | |
| containerSecurityContext.runAsNonRoot | bool | `true` | |
| priorityClassName | string | `""` | |
| enableServiceLinks | bool | `false` | |
| extraManifests | list | `[]` | List of additional k8s manifests. |
| fullnameOverride | string | `""` | |
| image.rustfs.pullPolicy | string | `"IfNotPresent"` | |
| image.rustfs.repository | string | `"rustfs/rustfs"` | RustFS docker image repository. |
| image.rustfs.tag | string | `""` | Chart appVersion default if unset. |
| imagePullSecrets | list | `[]` | A List of secrets to pull image from private registry. |
| imageRegistryCredentials.email | string | `""` | The email to pull rustfs image from private registry. |
| imageRegistryCredentials.enabled | bool | `false` | To indicate whether pull image from private registry. |
| imageRegistryCredentials.password | string | `""` | The password to pull rustfs image from private registry. |
| imageRegistryCredentials.registry | string | `""` | Private registry url to pull rustfs image. |
| imageRegistryCredentials.username | string | `""` | The username to pull rustfs image from private registry. |
| ingress.className | string | `"nginx"` | Specify the ingress class, traefik or nginx. |
| ingress.enabled | bool | `true` | |
| ingress.hosts[0].host | string | `"example.rustfs.com"` | |
| ingress.hosts[0].paths[0].path | string | `"/"` | |
| ingress.hosts[0].paths[0].pathType | string | `"ImplementationSpecific"` | |
| ingress.nginxAnnotations."nginx.ingress.kubernetes.io/affinity" | string | `"cookie"` | |
| ingress.nginxAnnotations."nginx.ingress.kubernetes.io/session-cookie-expires" | string | `"3600"` | |
| ingress.nginxAnnotations."nginx.ingress.kubernetes.io/session-cookie-hash" | string | `"sha1"` | |
| ingress.nginxAnnotations."nginx.ingress.kubernetes.io/session-cookie-max-age" | string | `"3600"` | |
| ingress.nginxAnnotations."nginx.ingress.kubernetes.io/session-cookie-name" | string | `"rustfs"` | |
| ingress.customAnnotations | dict | `{}` | Additional custom annotations, merged with class-specific stickiness annotations. |
| ingress.traefikAnnotations."traefik.ingress.kubernetes.io/service.sticky.cookie" | string | `"true"` | |
| ingress.traefikAnnotations."traefik.ingress.kubernetes.io/service.sticky.cookie.httponly" | string | `"true"` | |
| ingress.traefikAnnotations."traefik.ingress.kubernetes.io/service.sticky.cookie.name" | string | `"rustfs"` | |
| ingress.traefikAnnotations."traefik.ingress.kubernetes.io/service.sticky.cookie.samesite" | string | `"none"` | |
| ingress.traefikAnnotations."traefik.ingress.kubernetes.io/service.sticky.cookie.secure" | string | `"true"` | |
| ingress.tls.enabled | bool | `false` | Enable tls and access rustfs via https. |
| ingress.tls.certManager.enabled | string | `false` | Enable cert manager support to generate certificate automatically. |
| ingress.tls.crt | string | "" | The content of certificate file. |
| ingress.tls.key | string | "" | The content of key file. |
| livenessProbe.failureThreshold | int | `3` | |
| livenessProbe.httpGet.path | string | `"/health"` | |
| livenessProbe.httpGet.port | string | `"endpoint"` | |
| livenessProbe.initialDelaySeconds | int | `10` | |
| livenessProbe.periodSeconds | int | `5` | |
| livenessProbe.successThreshold | int | `1` | |
| livenessProbe.timeoutSeconds | int | `3` | |
| mode.distributed.enabled | bool | `true` | RustFS distributed mode support, namely multiple pod multiple pvc. |
| mode.standalone.enabled | bool | `false` | RustFS standalone mode support, namely one pod one pvc. |
| mode.standalone.existingClaim.dataClaim |string |`""` |Whether to use existing pvc claim for data storage. |
| mode.standalone.existingClaim.logsClaim |string |`""` |Whether to use existing pvc claim for logs storage. |
| mtls.enabled | bool | `false` | Enable mtls betweens pods. |
| mtls.clientCertPath | string | `/opt/tls/client_cert.pem` | The path for client cert. |
| mtls.clientKeyPath | string | `/opt/tls/client_key.pem` | The path for client key. |
| mtls.existingIssuerRef.enabled | bool | `false` | Enable to use external/existing certificate issuer.|
| mtls.existingIssuerRef.name | string | `""` | The name of external/existing certificate issuer. |
| mtls.existingIssuerRef.kind | string | `""` | The kind of external/existing certificate iss
uer. `ClusterIssuer` or `Issuer`. |
| mtls.existingIssuerRef.group | string | `""` | The group of external/existing certificate issuer. |
| nameOverride | string | `""` | |
| nodeSelector | object | `{}` | |
| pdb.create | bool | `false` | Enable/disable a Pod Disruption Budget creation |
| pdb.maxUnavailable | string | `1` | |
| pdb.minAvailable | string | `""` | |
| podAnnotations | object | `{}` | |
| pools.enabled | bool | `false` | Enable multiple server pools (capacity expansion, distributed mode only). |
| pools.list | list | `[]` | One entry per pool; entries may set `replicaCount` (>= 2) and `storageclass`, omitted fields inherit top-level values. Append-only. |
| podLabels | object | `{}` | |
| podSecurityContext.fsGroup | int | `10001` | |
| podSecurityContext.runAsGroup | int | `10001` | |
| podSecurityContext.runAsUser | int | `10001` | |
| readinessProbe.failureThreshold | int | `3` | |
| readinessProbe.httpGet.path | string | `"/health/ready"` | |
| readinessProbe.httpGet.port | string | `"endpoint"` | |
| readinessProbe.initialDelaySeconds | int | `30` | |
| readinessProbe.periodSeconds | int | `5` | |
| readinessProbe.successThreshold | int | `1` | |
| readinessProbe.timeoutSeconds | int | `3` | |
| replicaCount | int | `4` | Number of cluster nodes. Distributed mode requires >= 2. |
| drivesPerNode | int | `null` | Number of data PVCs per pod. Inferred from replicaCount when unset (see Distributed topology above). |
| resources.limits.cpu | string | `"200m"` | |
| resources.limits.memory | string | `"512Mi"` | |
| resources.requests.cpu | string | `"100m"` | |
| resources.requests.memory | string | `"128Mi"` | |
| secret.existingSecret | string | `""` | Use existing secret with a credentials. |
| secret.rustfs.access_key | string | `"rustfsadmin"` | RustFS Access Key ID |
| secret.rustfs.secret_key | string | `"rustfsadmin"` | RustFS Secret Key ID |
| service.type | string | `"ClusterIP"` | |
| service.console.nodePort | int | `32001` | |
| service.console.port | int | `9001` | |
| service.endpoint.nodePort | int | `32000` | |
| service.endpoint.port | int | `9000` | |
| serviceAccount.annotations | object | `{}` | |
| serviceAccount.automount | bool | `true` | |
| serviceAccount.create | bool | `true` | |
| serviceAccount.name | string | `""` | |
| storageclass.dataStorageSize | string | `"256Mi"` | The storage size for data PVC. |
| storageclass.logStorageSize | string | `"256Mi"` | The storage size for logs PVC. |
| storageclass.name | string | `"local-path"` | The name for StorageClass. |
| storageclass.pvcAnnotations.data | map | `{}` | Data pvc customized annotations. |
| storageclass.pvcAnnotations.logs | map | `{}` | Logs pvc customized annotations. |
| tolerations | list | `[]` | |
| topologySpreadConstraints.enabled | bool | `false` | Enable custom topology spread constraints on distributed-mode StatefulSet pods. |
| topologySpreadConstraints.constraints | list | `[]` | Raw `spec.template.spec.topologySpreadConstraints` entries applied to the distributed StatefulSet when enabled. |
| gatewayApi.enabled | bool | `false` | To enable/disable gateway api support. |
| gatewayApi.gatewayClass | string | `traefik` | Gateway class implementation. |
| gatewayApi.listeners.http.name | string | `web` | Gateway API http listener name. |
| gatewayApi.listeners.http.port| int | `8000` | Gateway API http listener port. |
| gatewayApi.listeners.https.name | string | `websecure` | Gateway API https listener name. |
| gatewayApi.listeners.https.port| int | `8443` | Gateway API https listener port. |
| gatewayApi.hostname | string | Hostname to access RustFS via gateway api. |
| gatewayApi.secretName | string | Secret tls to via RustFS using HTTPS. |
| gatewayApi.existingGateway.name | string | `""` | The existing gateway name, instead of creating a new one. |
| gatewayApi.existingGateway.namespace | string | `""` | The namespace of the existing gateway, if not the local namespace. |
Scanner values map directly to scanner environment variables. For tuning
workflow and `/v3/scanner/status` interpretation, see
[Scanner Runtime Controls](../docs/operations/scanner-runtime-controls.md). For
repeatable scanner-pressure validation, see
[Scanner Benchmark Runbook](../docs/operations/scanner-benchmark-runbook.md).
---
**NOTE**:
The chart pulls the rustfs image from Docker Hub by default. For private registries, provide either:
- **Existing secrets**: Set `imagePullSecrets` with an array of secret names
```yaml
imagePullSecrets:
- name: my-existing-secret
```
- **Auto-generated secret**: Enable `imageRegistryCredentials.enabled: true` and specify credentials plus your image details
```yaml
imageRegistryCredentials:
enabled: true
registry: myregistry.com
username: myuser
password: mypass
email: user@example.com
```
Both approaches support pulling from private registries seamlessly and you can also combine them.
- The chart default pull rustfs image from dockerhub, if your rustfs image stores in private registry, you can use either existing image Pull secrets with parameter `imagePullSecrets` or create one setting `imageRegistryCredentials.enabled` to `true`,and then specify the `imageRegistryCredentials.registry/username/password/email` as well as `image.rustfs.repository`,`image.rustfs.tag` to pull rustfs image from your private registry.
- The default storageclass is [`local-path`](https://github.com/rancher/local-path-provisioner),if you want to specify your own storageclass, try to set parameter `storageclass.name`.
- The default size for data and logs dir is **256Mi** which must satisfy the production usage,you should specify `storageclass.dataStorageSize` and `storageclass.logStorageSize` to change the size, for example, 1Ti for data and 1Gi for logs.
# Server pools (capacity expansion)
In distributed mode the chart can run multiple **server pools** — independent
StatefulSets whose drives together form one cluster, the same expansion model
the RustFS server already supports via space-separated `RUSTFS_VOLUMES`
expressions (`rc admin pool ls` / `expand` / `rebalance` / `decommission`).
With `pools.enabled=false` (default) the chart behaves exactly as before:
one StatefulSet driven by the top-level `replicaCount`/`storageclass`.
To expand an existing deployment, enable pools and describe the current
layout as pool 0 plus your new capacity:
```yaml
pools:
enabled: true
list:
- {} # pool 0: inherits top-level values and keeps the
# existing StatefulSet/pod/PVC names and data
- replicaCount: 4 # pool 1: new capacity
storageclass:
dataStorageSize: 10Gi
```
Each entry may set `replicaCount` (>= 2) and/or a `storageclass` block;
omitted fields inherit the top-level values. Additional pools render as
`<fullname>-pool<N>` StatefulSets; all pools share the headless service,
the main service, the configuration and the credentials.
Notes:
* **Pools are append-only.** The list index determines the StatefulSet name —
never remove or reorder entries. Retire a pool with
`rc admin decommission` before removing it from the list.
* During the expansion rollout, pods restart until every pod of every pool is
resolvable — the server refuses to start with unresolvable peers, so expect
a few crash/restart cycles before the cluster converges. This is harmless.
* After the cluster converges, run `rc admin rebalance start <alias>` to
spread existing objects across the new pool.
* Pod anti-affinity in pool mode is scoped per pool and **preferred**
(soft), not required: two pools can share nodes, and each pool's own pods
spread across distinct nodes when capacity allows. Soft affinity is
load-bearing for in-place expansion — with required rules, the
not-yet-rolled pods of the existing pool block the new pool's pods from
their nodes while the rolled pods crash on the unresolvable (Pending)
peers, deadlocking the rollout on any cluster with fewer nodes than the
total pod count. Single-pool deployments (`pools.enabled=false`) keep the
chart's existing required anti-affinity unchanged.
* The PodDisruptionBudget spans all pools: with the default
`pdb.maxUnavailable: 1`, at most one pod of the whole cluster may be
evicted at a time. This is deliberately conservative — quorum safety
matters across the union of all pools.
# Installation
## Requirement
* Helm V3
* RustFS >= 1.0.0-alpha.69
Due to the traefik and ingress has different session sticky/affinity annotations, and rustfs support both those two controller, you should specify parameter `ingress.className` to select the right one which suits for you.
## Installation with traefik controller
If your ingress class is `traefik`, running the command:
```
helm install rustfs -n rustfs --create-namespace ./ --set ingress.className="traefik"
```
## Installation with nginx controller
If your ingress class is `nginx`, running the command:
```
helm install rustfs -n rustfs --create-namespace ./ --set ingress.className="nginx"
```
# Installation check and rustfs login
Check the pod status
```
kubectl -n rustfs get pods -w
NAME READY STATUS RESTARTS AGE
rustfs-0 1/1 Running 0 2m27s
rustfs-1 1/1 Running 0 2m27s
rustfs-2 1/1 Running 0 2m27s
rustfs-3 1/1 Running 0 2m27s
```
Check the ingress status
```
kubectl -n rustfs get ing
NAME CLASS HOSTS ADDRESS PORTS AGE
rustfs nginx example.rustfs.com 10.43.237.152 80, 443 29m
```
Access the rustfs cluster via `https://example.rustfs.com` with the default username and password `rustfsadmin`.
> Replace the `example.rustfs.com` with your own domain as well as the certificates.
# TLS configuration
By default, tls is not enabled. If you want to enable tls(recommendated),you can follow below steps:
* Step 1: Certification generation
You can request cert and key from CA or use the self-signed cert(**not recommendated on prod**), and put those two files(eg, `tls.crt` and `tls.key`) under some directory on server, for example `tls` directory.
* Step 2: Certification specifying
You should use `--set-file` parameter when running `helm install` command, for example, running the below command can enable ingress tls and generate tls secret:
```
helm install rustfs rustfs/rustfs -n rustfs --set tls.enabled=true,--set-file tls.crt=./tls.crt,--set-file tls.key=./tls.key
```
# Gateway API support (alpha)
Due to [ingress nginx retirement](https://kubernetes.io/blog/2025/11/11/ingress-nginx-retirement/) in March 2026, so RustFS adds support for [gateway api](https://gateway-api.sigs.k8s.io/). Currently, RustFS only supports traefik as gateway class, more and more gateway class support will be added in the future after those classes are tested. If you want to enable gateway api, specify `gatewayApi.enabled` to `true` while specify `ingress.enabled` to `false`. After installation, you can find the `Gateway` and `HttpRoute` resources,
```
$ kubectl -n rustfs get gateway
NAME CLASS ADDRESS PROGRAMMED AGE
rustfs-gateway traefik True 169m
$ kubectl -n rustfs get httproute
NAME HOSTNAMES AGE
rustfs-route ["example.rustfs.com"] 172m
```
Then, via RustFS instance via `https://example.rustfs.com` or `http://example.rustfs.com`.
# Uninstall
Uninstalling the rustfs installation with command,
```
helm uninstall rustfs -n rustfs
```