snapshot of https://github.com/seaweedfs/seaweedfs.git (master, 2026-09-16; blobs > 131072B omitted)

k8s/charts/seaweedfs/templates/sftp/sftp-ca-secret.yaml

@@ -0,0 +1,40 @@
+{{- include "seaweedfs.compat" . -}}
+{{- /*
+Render a chart-managed Secret carrying the SSH user CA public key(s) for
+certificate-based SFTP authentication, but only when:
+  - SFTP (standalone or all-in-one) is enabled,
+  - "certificate" is in the relevant authMethods list,
+  - the user provided inline CA keys via sftp.trustedUserCAKeys, and
+  - no existingCAKeysSecret is set (which would supersede this Secret).
+*/}}
+{{- $sftpEnabled := or .Values.sftp.enabled (and .Values.allInOne.enabled .Values.allInOne.sftp.enabled) -}}
+{{- $authMethods := .Values.sftp.authMethods -}}
+{{- if and .Values.allInOne.enabled .Values.allInOne.sftp.authMethods -}}
+{{- $authMethods = .Values.allInOne.sftp.authMethods -}}
+{{- end -}}
+{{- $certInMethods := and $authMethods (contains "certificate" $authMethods) -}}
+{{- $inlineCAKeys := .Values.sftp.trustedUserCAKeys -}}
+{{- if and .Values.allInOne.enabled .Values.allInOne.sftp.trustedUserCAKeys -}}
+{{- $inlineCAKeys = .Values.allInOne.sftp.trustedUserCAKeys -}}
+{{- end -}}
+{{- $existingSecret := .Values.sftp.existingCAKeysSecret -}}
+{{- if and .Values.allInOne.enabled .Values.allInOne.sftp.existingCAKeysSecret -}}
+{{- $existingSecret = .Values.allInOne.sftp.existingCAKeysSecret -}}
+{{- end -}}
+{{- if and $sftpEnabled $certInMethods $inlineCAKeys (not $existingSecret) }}
+apiVersion: v1
+kind: Secret
+type: Opaque
+metadata:
+  name: {{ include "seaweedfs.fullname" . }}-sftp-ca-secret
+  namespace: {{ .Release.Namespace }}
+  labels:
+    app.kubernetes.io/name: {{ template "seaweedfs.name" . }}
+    helm.sh/chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/component: sftp
+stringData:
+  ca_user.pub: |
+{{ $inlineCAKeys | indent 4 }}
+{{- end }}

k8s/charts/seaweedfs/templates/sftp/sftp-deployment.yaml

@@ -0,0 +1,320 @@
+{{- include "seaweedfs.compat" . -}}
+{{- if .Values.sftp.enabled }}
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "seaweedfs.fullname" . }}-sftp
+  namespace: {{ .Release.Namespace }}
+  labels:
+    app.kubernetes.io/name: {{ template "seaweedfs.name" . }}
+    helm.sh/chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/component: sftp
+{{- if .Values.sftp.annotations }}
+  annotations:
+    {{- toYaml .Values.sftp.annotations | nindent 4 }}
+{{- end }}
+spec:
+  replicas: {{ .Values.sftp.replicas }}
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ template "seaweedfs.name" . }}
+      app.kubernetes.io/instance: {{ .Release.Name }}
+      app.kubernetes.io/component: sftp
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: {{ template "seaweedfs.name" . }}
+        helm.sh/chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
+        app.kubernetes.io/instance: {{ .Release.Name }}
+        app.kubernetes.io/component: sftp
+      {{ with .Values.podLabels }}
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.sftp.podLabels }}
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
+      annotations:
+      {{ with .Values.podAnnotations }}
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.sftp.podAnnotations }}
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
+    spec:
+      restartPolicy: {{ default .Values.global.seaweedfs.restartPolicy .Values.sftp.restartPolicy }}
+      {{- if .Values.sftp.affinity }}
+      affinity:
+        {{ tpl .Values.sftp.affinity . | nindent 8 | trim }}
+      {{- end }}
+      {{- if .Values.sftp.topologySpreadConstraints }}
+      topologySpreadConstraints:
+        {{ tpl .Values.sftp.topologySpreadConstraints . | nindent 8 | trim }}
+      {{- end }}
+      {{- if .Values.sftp.tolerations }}
+      tolerations:
+        {{ tpl .Values.sftp.tolerations . | nindent 8 | trim }}
+      {{- end }}
+      {{- include "seaweedfs.imagePullSecrets" . | nindent 6 }}
+      terminationGracePeriodSeconds: 10
+      {{- if .Values.sftp.priorityClassName }}
+      priorityClassName: {{ .Values.sftp.priorityClassName | quote }}
+      {{- end }}
+      {{- if .Values.sftp.schedulerName }}
+      schedulerName: {{ .Values.sftp.schedulerName | quote }}
+      {{- end }}
+      enableServiceLinks: false
+      {{- if .Values.sftp.serviceAccountName }}
+      serviceAccountName: {{ .Values.sftp.serviceAccountName | quote }}
+      {{- end }}
+      {{- if .Values.sftp.initContainers }}
+      initContainers:
+        {{ tpl .Values.sftp.initContainers . | nindent 8 | trim }}
+      {{- end }}
+      {{- if .Values.sftp.podSecurityContext.enabled }}
+      securityContext: {{- omit .Values.sftp.podSecurityContext "enabled" | toYaml | nindent 8 }}
+      {{- end }}
+      containers:
+        - name: seaweedfs
+          image: {{ template "seaweedfs.sftp.image" . }}
+          imagePullPolicy: {{ default "IfNotPresent" .Values.global.seaweedfs.imagePullPolicy }}
+          env:
+            - name: POD_IP
+              valueFrom:
+                fieldRef:
+                  fieldPath: status.podIP
+            - name: POD_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.name
+            - name: NAMESPACE
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.namespace
+            - name: SEAWEEDFS_FULLNAME
+              value: "{{ include "seaweedfs.fullname" . }}"
+            {{- $mergedExtraEnvironmentVars := dict }}
+            {{- include "seaweedfs.mergeExtraEnvironmentVars" (dict "global" .Values.global.seaweedfs "component" .Values.sftp "target" $mergedExtraEnvironmentVars) }}
+            {{- range $key := keys $mergedExtraEnvironmentVars | sortAlpha }}
+            {{- $value := index $mergedExtraEnvironmentVars $key }}
+            - name: {{ $key }}
+            {{- if kindIs "string" $value }}
+              value: {{ tpl $value $ | quote }}
+            {{- else }}
+              valueFrom:
+                {{ toYaml $value | nindent 16 | trim }}
+            {{- end -}}
+            {{- end }}
+          command:
+            - "/bin/sh"
+            - "-ec"
+            - |
+              exec /usr/bin/weed \
+              {{- if or (eq .Values.sftp.logs.type "hostPath") (eq .Values.sftp.logs.type "emptyDir") }}
+              -logdir=/logs \
+              {{- else }}
+              -logtostderr=true \
+              {{- end }}
+              {{- if .Values.sftp.loggingOverrideLevel }}
+              -v={{ .Values.sftp.loggingOverrideLevel }} \
+              {{- else }}
+              -v={{ .Values.global.seaweedfs.loggingLevel }} \
+              {{- end }}
+              sftp \
+              -ip.bind={{ .Values.sftp.bindAddress }} \
+              -port={{ .Values.sftp.port }} \
+              {{- if .Values.sftp.metricsPort }}
+              -metricsPort={{ .Values.sftp.metricsPort }} \
+              {{- end }}
+              {{- if .Values.sftp.metricsIp }}
+              -metricsIp={{ .Values.sftp.metricsIp }} \
+              {{- end }}
+              {{- if .Values.sftp.sshPrivateKey }}
+              -sshPrivateKey={{ .Values.sftp.sshPrivateKey }} \
+              {{- end }}
+              {{- if .Values.sftp.hostKeysFolder }}
+              -hostKeysFolder={{ .Values.sftp.hostKeysFolder }} \
+              {{- end }}
+              {{- if .Values.sftp.authMethods }}
+              -authMethods={{ .Values.sftp.authMethods }} \
+              {{- if contains "certificate" .Values.sftp.authMethods }}
+              -trustedUserCAKeysFile=/etc/sw/sftp_ca/ca_user.pub \
+              {{- end }}
+              {{- end }}
+              {{- if .Values.sftp.maxAuthTries }}
+              -maxAuthTries={{ .Values.sftp.maxAuthTries }} \
+              {{- end }}
+              {{- if .Values.sftp.bannerMessage }}
+              -bannerMessage="{{ .Values.sftp.bannerMessage }}" \
+              {{- end }}
+              {{- if .Values.sftp.loginGraceTime }}
+              -loginGraceTime={{ .Values.sftp.loginGraceTime }} \
+              {{- end }}
+              {{- if .Values.sftp.clientAliveInterval }}
+              -clientAliveInterval={{ .Values.sftp.clientAliveInterval }} \
+              {{- end }}
+              {{- if .Values.sftp.clientAliveCountMax }}
+              -clientAliveCountMax={{ .Values.sftp.clientAliveCountMax }} \
+              {{- end }}
+              {{- if .Values.sftp.dataCenter }}
+              -dataCenter={{ .Values.sftp.dataCenter }} \
+              {{- end }}
+              {{- if .Values.sftp.localSocket }}
+              -localSocket={{ .Values.sftp.localSocket }} \
+              {{- end }}
+              {{- if .Values.global.seaweedfs.enableSecurity }}
+              -cert.file=/usr/local/share/ca-certificates/client/tls.crt \
+              -key.file=/usr/local/share/ca-certificates/client/tls.key \
+              {{- end }}
+              -userStoreFile=/etc/sw/seaweedfs_sftp_config \
+              -filer={{ include "seaweedfs.componentName" (list . "filer-client") }}.{{ .Release.Namespace }}:{{ .Values.filer.port }}
+          volumeMounts:
+            {{- if or (eq .Values.sftp.logs.type "hostPath") (eq .Values.sftp.logs.type "emptyDir") }}
+            - name: logs
+              mountPath: "/logs/"
+            {{- end }}
+            {{- if .Values.sftp.enableAuth }}
+            - mountPath: /etc/sw
+              name: config-users
+              readOnly: true
+            {{- end }}
+            - mountPath: {{ .Values.sftp.hostKeysFolder | default "/etc/sw/ssh" }}
+              name: config-ssh
+              readOnly: true
+            {{- if and .Values.sftp.authMethods (contains "certificate" .Values.sftp.authMethods) }}
+            - mountPath: /etc/sw/sftp_ca
+              name: config-sftp-ca
+              readOnly: true
+            {{- end }}
+            {{- if include "seaweedfs.securityConfigEnabled" . }}
+            - name: security-config
+              readOnly: true
+              mountPath: /etc/seaweedfs/security.toml
+              subPath: security.toml
+            {{- end }}
+            {{- if .Values.global.seaweedfs.enableSecurity }}
+            - name: ca-cert
+              readOnly: true
+              mountPath: /usr/local/share/ca-certificates/ca/
+            - name: master-cert
+              readOnly: true
+              mountPath: /usr/local/share/ca-certificates/master/
+            - name: volume-cert
+              readOnly: true
+              mountPath: /usr/local/share/ca-certificates/volume/
+            - name: filer-cert
+              readOnly: true
+              mountPath: /usr/local/share/ca-certificates/filer/
+            - name: client-cert
+              readOnly: true
+              mountPath: /usr/local/share/ca-certificates/client/
+            {{- end }}
+            {{ tpl .Values.sftp.extraVolumeMounts . | nindent 12 | trim }}
+          ports:
+            - containerPort: {{ .Values.sftp.port }}
+              name: swfs-sftp
+            {{- if .Values.sftp.metricsPort }}
+            - containerPort: {{ .Values.sftp.metricsPort }}
+              name: metrics
+            {{- end }}
+          {{- if .Values.sftp.readinessProbe.enabled }}
+          readinessProbe:
+            tcpSocket:
+              port: {{ .Values.sftp.port }}
+            initialDelaySeconds: {{ .Values.sftp.readinessProbe.initialDelaySeconds }}
+            periodSeconds: {{ .Values.sftp.readinessProbe.periodSeconds }}
+            successThreshold: {{ .Values.sftp.readinessProbe.successThreshold }}
+            failureThreshold: {{ .Values.sftp.readinessProbe.failureThreshold }}
+            timeoutSeconds: {{ .Values.sftp.readinessProbe.timeoutSeconds }}
+          {{- end }}
+          {{- if .Values.sftp.livenessProbe.enabled }}
+          livenessProbe:
+            tcpSocket:
+              port: {{ .Values.sftp.port }}
+            initialDelaySeconds: {{ .Values.sftp.livenessProbe.initialDelaySeconds }}
+            periodSeconds: {{ .Values.sftp.livenessProbe.periodSeconds }}
+            successThreshold: {{ .Values.sftp.livenessProbe.successThreshold }}
+            failureThreshold: {{ .Values.sftp.livenessProbe.failureThreshold }}
+            timeoutSeconds: {{ .Values.sftp.livenessProbe.timeoutSeconds }}
+          {{- end }}
+          {{- with .Values.sftp.resources }}
+          resources:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- if .Values.sftp.containerSecurityContext.enabled }}
+          securityContext: {{- omit .Values.sftp.containerSecurityContext "enabled" | toYaml | nindent 12 }}
+          {{- end }}
+      {{- if .Values.sftp.sidecars }}
+      {{- include "seaweedfs.tplvalues.render" (dict "value" .Values.sftp.sidecars "context" $) | nindent 8 }}
+      {{- end }}
+      volumes:
+        {{- if .Values.sftp.enableAuth }}
+        - name: config-users
+          secret:
+            defaultMode: 420
+            {{- if .Values.sftp.existingConfigSecret }}
+            secretName: {{ .Values.sftp.existingConfigSecret }}
+            {{- else }}
+            secretName: {{ include "seaweedfs.fullname" . }}-sftp-secret
+            {{- end }}
+        {{- end }}
+        - name: config-ssh
+          secret:
+            defaultMode: 420
+            {{- if .Values.sftp.existingSshConfigSecret }}
+            secretName: {{ .Values.sftp.existingSshConfigSecret }}
+            {{- else }}
+            secretName: {{ include "seaweedfs.fullname" . }}-sftp-ssh-secret
+            {{- end }}
+        {{- if and .Values.sftp.authMethods (contains "certificate" .Values.sftp.authMethods) }}
+        {{- if and (not .Values.sftp.existingCAKeysSecret) (not .Values.sftp.trustedUserCAKeys) }}
+        {{- fail "sftp.authMethods includes \"certificate\" but neither sftp.trustedUserCAKeys nor sftp.existingCAKeysSecret is set" }}
+        {{- end }}
+        - name: config-sftp-ca
+          secret:
+            defaultMode: 420
+            {{- if .Values.sftp.existingCAKeysSecret }}
+            secretName: {{ .Values.sftp.existingCAKeysSecret }}
+            {{- else }}
+            secretName: {{ include "seaweedfs.fullname" . }}-sftp-ca-secret
+            {{- end }}
+        {{- end }}
+        {{- if eq .Values.sftp.logs.type "hostPath" }}
+        - name: logs
+          hostPath:
+            path: {{ .Values.sftp.logs.hostPathPrefix }}/logs/seaweedfs/sftp
+            type: DirectoryOrCreate
+        {{- end }}
+        {{- if eq .Values.sftp.logs.type "emptyDir" }}
+        - name: logs
+          emptyDir: {}
+        {{- end }}
+        {{- if include "seaweedfs.securityConfigEnabled" . }}
+        - name: security-config
+          configMap:
+            name: {{ include "seaweedfs.fullname" . }}-security-config
+        {{- end }}
+        {{- if .Values.global.seaweedfs.enableSecurity }}
+        - name: ca-cert
+          secret:
+            secretName: {{ include "seaweedfs.fullname" . }}-ca-cert
+        - name: master-cert
+          secret:
+            secretName: {{ include "seaweedfs.fullname" . }}-master-cert
+        - name: volume-cert
+          secret:
+            secretName: {{ include "seaweedfs.fullname" . }}-volume-cert
+        - name: filer-cert
+          secret:
+            secretName: {{ include "seaweedfs.fullname" . }}-filer-cert
+        - name: client-cert
+          secret:
+            secretName: {{ include "seaweedfs.fullname" . }}-client-cert
+        {{- end }}
+        {{ tpl .Values.sftp.extraVolumes . | indent 8 | trim }}
+      {{- if .Values.sftp.nodeSelector }}
+      nodeSelector:
+        {{ tpl .Values.sftp.nodeSelector . | indent 8 | trim }}
+      {{- end }}
+{{- end }}

k8s/charts/seaweedfs/templates/sftp/sftp-secret.yaml

@@ -0,0 +1,37 @@
+{{- if or .Values.sftp.enabled .Values.allInOne.enabled }}
+{{- $secretName := printf "%s-sftp-secret" (include "seaweedfs.fullname" .) }}
+{{- $admin_pwd := include "seaweedfs.getOrGeneratePassword" (dict "namespace" .Release.Namespace "secretName" $secretName "key" "admin_password" "length" 20) -}}
+{{- $read_user_pwd := include "seaweedfs.getOrGeneratePassword" (dict "namespace" .Release.Namespace "secretName" $secretName "key" "readonly_password" "length" 20) -}}
+{{- $public_user_pwd := include "seaweedfs.getOrGeneratePassword" (dict "namespace" .Release.Namespace "secretName" $secretName "key" "public_user_password" "length" 20) -}}
+{{- $ssh_private_key := "" -}}
+{{- $existingSecret := lookup "v1" "Secret" .Release.Namespace $secretName -}}
+{{- if and $existingSecret (index $existingSecret.data "seaweedfs_sftp_ssh_private_key") -}}
+{{- $ssh_private_key = index $existingSecret.data "seaweedfs_sftp_ssh_private_key" | b64dec | trim -}}
+{{- end -}}
+{{/* generate a fresh host key; also replace the key earlier chart versions bundled */}}
+{{- if or (not $ssh_private_key) (contains "H4McwcDphteXVullu6q7ephEN1N60z" $ssh_private_key) -}}
+{{- $ssh_private_key = genPrivateKey "ed25519" -}}
+{{- end -}}
+apiVersion: v1
+kind: Secret
+type: Opaque
+metadata:
+  name: {{ $secretName }}
+  namespace: {{ .Release.Namespace }}
+  annotations:
+    "helm.sh/resource-policy": keep
+    "helm.sh/hook": "pre-install,pre-upgrade"
+  labels:
+    app.kubernetes.io/name: {{ template "seaweedfs.name" . }}
+    helm.sh/chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/component: sftp
+stringData:
+  admin_password: {{ $admin_pwd }}
+  readonly_password: {{ $read_user_pwd }}
+  public_user_password: {{ $public_user_pwd }}
+  seaweedfs_sftp_config: '[{"Username":"admin","Password":"{{ $admin_pwd }}","PublicKeys":[],"HomeDir":"/","Permissions":{"/":["read","write","list"]},"Uid":0,"Gid":0},{"Username":"readonly_user","Password":"{{ $read_user_pwd }}","PublicKeys":[],"HomeDir":"/","Permissions":{"/":["read","list"]},"Uid":1112,"Gid":1112},{"Username":"public_user","Password":"{{ $public_user_pwd }}","PublicKeys":[],"HomeDir":"/public","Permissions":{"/public":["write","read","list"]},"Uid":1113,"Gid":1113}]'
+  seaweedfs_sftp_ssh_private_key: |
+{{ $ssh_private_key | trim | indent 4 }}
+{{- end }}

k8s/charts/seaweedfs/templates/sftp/sftp-service.yaml

@@ -0,0 +1,47 @@
+{{- if .Values.sftp.enabled }}
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "seaweedfs.componentName" (list . "sftp") }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    app.kubernetes.io/name: {{ template "seaweedfs.name" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/component: sftp
+    helm.sh/chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- if .Values.sftp.annotations }}
+  annotations:
+    {{- toYaml .Values.sftp.annotations | nindent 4 }}
+{{- end }}
+spec:
+  {{- $serviceType := .Values.sftp.service.type }}
+  {{- $nodePorts := dict }}
+  {{- if or (eq $serviceType "NodePort") (eq $serviceType "LoadBalancer") }}
+  {{- $nodePorts = .Values.sftp.service.nodePorts | default dict }}
+  {{- end }}
+  type: {{ $serviceType }}
+  {{- include "seaweedfs.service.loadBalancerFields" .Values.sftp.service }}
+  internalTrafficPolicy: {{ .Values.sftp.internalTrafficPolicy | default "Cluster" }}
+  ports:
+  - name: "swfs-sftp"
+    port: {{ .Values.sftp.port }}
+    targetPort: {{ .Values.sftp.port }}
+{{- if $nodePorts.sftp }}
+    nodePort: {{ $nodePorts.sftp }}
+{{- end }}
+    protocol: TCP
+{{- if .Values.sftp.metricsPort }}
+  - name: "metrics"
+    port: {{ .Values.sftp.metricsPort }}
+    targetPort: {{ .Values.sftp.metricsPort }}
+{{- if $nodePorts.metrics }}
+    nodePort: {{ $nodePorts.metrics }}
+{{- end }}
+    protocol: TCP
+{{- end }}
+  selector:
+    app.kubernetes.io/name: {{ template "seaweedfs.name" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/component: sftp
+{{- end }}

k8s/charts/seaweedfs/templates/sftp/sftp-servicemonitor.yaml

@@ -0,0 +1,35 @@
+{{- include "seaweedfs.compat" . -}}
+{{- if .Values.sftp.enabled }}
+{{- if .Values.sftp.metricsPort }}
+{{- if .Values.global.seaweedfs.monitoring.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ include "seaweedfs.fullname" . }}-sftp
+  namespace: {{ .Release.Namespace }}
+  labels:
+    app.kubernetes.io/name: {{ template "seaweedfs.name" . }}
+    helm.sh/chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/component: sftp
+    {{- with .Values.global.seaweedfs.monitoring.additionalLabels }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+{{- if .Values.sftp.annotations }}
+  annotations:
+    {{- toYaml .Values.sftp.annotations | nindent 4 }}
+{{- end }}
+spec:
+  endpoints:
+    - interval: 30s
+      port: metrics
+      scrapeTimeout: 5s
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ template "seaweedfs.name" . }}
+      app.kubernetes.io/instance: {{ .Release.Name }}
+      app.kubernetes.io/component: sftp
+{{- end }}
+{{- end }}
+{{- end }}

k8s/charts/seaweedfs/templates/sftp/sftp-ssh-secret.yaml

@@ -0,0 +1,35 @@
+{{- if or (and .Values.sftp.enabled (not .Values.sftp.existingSshConfigSecret)) (and .Values.allInOne.enabled .Values.allInOne.sftp.enabled (not (or .Values.allInOne.sftp.existingSshConfigSecret .Values.sftp.existingSshConfigSecret))) }}
+{{/* Host keys mounted at sftp.hostKeysFolder; existing keys are kept across upgrades, except the key earlier chart versions bundled. */}}
+{{- $secretName := printf "%s-sftp-ssh-secret" (include "seaweedfs.fullname" .) }}
+{{- $hostKeys := dict }}
+{{- $existingSecret := lookup "v1" "Secret" .Release.Namespace $secretName }}
+{{- if $existingSecret }}
+{{- range $name, $value := $existingSecret.data }}
+{{- if not (contains "H4McwcDphteXVullu6q7ephEN1N60z" (b64dec $value)) }}
+{{- $_ := set $hostKeys $name $value }}
+{{- end }}
+{{- end }}
+{{- end }}
+{{- if eq (len $hostKeys) 0 }}
+{{- $_ := set $hostKeys "ssh_host_ed25519_key" (genPrivateKey "ed25519" | b64enc) }}
+{{- end }}
+apiVersion: v1
+kind: Secret
+type: Opaque
+metadata:
+  name: {{ $secretName }}
+  namespace: {{ .Release.Namespace }}
+  annotations:
+    "helm.sh/resource-policy": keep
+    "helm.sh/hook": "pre-install,pre-upgrade"
+  labels:
+    app.kubernetes.io/name: {{ template "seaweedfs.name" . }}
+    helm.sh/chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/component: sftp
+data:
+{{- range $name, $value := $hostKeys }}
+  {{ $name }}: {{ $value }}
+{{- end }}
+{{- end }}