jklein
6320709cbc
Enable readOnlyRootFilesystem and drop all capabilities by default. The paths the image writes at runtime are covered by emptyDirs (/tmp, /opt/app/logs and STATIC_ROOT /opt/app/myapp/static); an init container seeds the static volume with the assets shipped in the image because the directory doubles as the app's static source. The ephemeral-storage request covers the ~90Mi static emptyDir. Move the Ingress to the repo-standard flexible style: ingress.className value (default nginx) instead of a hardcoded ingressClassName, and ingress.annotations merged with the cert-manager annotation. domain and clusterIssuer stay required; the TLS secret name was already standard. Major bump 3.1.2+up1.30.1 -> 4.0.0+up1.30.1 (hardening changes runtime behavior). App version unchanged. Part of #32.
169 lines
7.0 KiB
YAML
169 lines
7.0 KiB
YAML
apiVersion: apps/v1
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kind: StatefulSet
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metadata:
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name: {{ .Release.Name }}-{{ .Chart.Name }}-sfs
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labels:
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app: {{ .Release.Name }}-{{ .Chart.Name }}-sfs
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spec:
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replicas: {{ include "voucher-vault.replicas" (dict "scaleDown" .Values.scaleDown "replicas" .Values.voucherVault.replicas) }}
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serviceName: {{ .Release.Name }}-{{ .Chart.Name }}-service
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selector:
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matchLabels:
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app: {{ .Release.Name }}-{{ .Chart.Name }}-sfs
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template:
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metadata:
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name: {{ .Release.Name }}-{{ .Chart.Name }}-sfs
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labels:
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app: {{ .Release.Name }}-{{ .Chart.Name }}-sfs
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spec:
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automountServiceAccountToken: false
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securityContext:
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{{- toYaml .Values.voucherVault.securityContext.pod | nindent 8 }}
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initContainers:
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# STATIC_ROOT (/opt/app/myapp/static) doubles as the app's own static
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# source directory, so it cannot simply be shadowed by an empty
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# volume: this init container seeds the static-files emptyDir with
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# the assets shipped in the image (cp -a preserves timestamps, so the
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# entrypoint's collectstatic only adds what is missing, e.g. the
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# Django admin static files). See securityContext in values.yaml.
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- name: init-static
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image: "l4rm4nd/vouchervault:{{ .Chart.AppVersion }}"
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imagePullPolicy: IfNotPresent
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# Copies the children (not ".") so cp never tries to set metadata
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# on the mountpoint itself, which the non-root uid may not own.
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command: ["sh", "-c", "cp -a /opt/app/myapp/static/* /static-seed/"]
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securityContext:
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{{- toYaml .Values.voucherVault.securityContext.container | nindent 12 }}
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volumeMounts:
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- name: static-files
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mountPath: /static-seed
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resources:
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requests:
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cpu: 10m
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memory: 16Mi
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ephemeral-storage: 1Mi
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limits:
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cpu: 200m
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memory: 64Mi
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ephemeral-storage: 10Mi
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containers:
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- name: {{ .Release.Name }}-{{ .Chart.Name }}-sfs
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image: "l4rm4nd/vouchervault:{{ .Chart.AppVersion }}"
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imagePullPolicy: IfNotPresent
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env:
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{{- range $value := .Values.voucherVault.env }}
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{{- if $value.value }}
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- name: {{ $value.name | quote }}
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value: {{ tpl $value.value $ | quote }}
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{{- else if $value.valueFrom }}
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{{- if $value.valueFrom.secretKeyRef }}
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- name: {{ $value.name }}
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valueFrom:
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secretKeyRef:
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name: {{ tpl $value.valueFrom.secretKeyRef.name $ | quote }}
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key: {{ tpl $value.valueFrom.secretKeyRef.key $ | quote }}
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{{- else if $value.valueFrom.configMapKeyRef }}
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- name: {{ $value.name }}
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valueFrom:
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configMapKeyRef:
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name: {{ tpl $value.valueFrom.configMapKeyRef.name $ | quote }}
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key: {{ tpl $value.valueFrom.configMapKeyRef.key $ | quote }}
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{{- end }}
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{{- end }}
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{{- end }}
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ports:
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{{- toYaml .Values.voucherVault.ports | nindent 12 }}
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{{- if .Values.voucherVault.livenessProbe }}
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livenessProbe:
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{{- toYaml .Values.voucherVault.livenessProbe | nindent 12 }}
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{{- end }}
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{{- if .Values.voucherVault.readinessProbe }}
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readinessProbe:
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{{- toYaml .Values.voucherVault.readinessProbe | nindent 12 }}
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{{- end }}
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{{- if .Values.voucherVault.startupProbe }}
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startupProbe:
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{{- toYaml .Values.voucherVault.startupProbe | nindent 12 }}
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{{- end }}
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resources:
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{{- include "voucher-vault.resources" .Values.voucherVault.resources | nindent 12 }}
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securityContext:
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{{- toYaml .Values.voucherVault.securityContext.container | nindent 12 }}
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volumeMounts:
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# Writable emptyDirs over the paths the image writes at runtime,
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# so the root filesystem can stay read-only (see securityContext
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# in values.yaml).
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- name: tmp
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mountPath: /tmp
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- name: logs
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mountPath: /opt/app/logs
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- name: static-files
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mountPath: /opt/app/myapp/static
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{{- range $value := .Values.voucherVault.storage.volumeMounts }}
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- name: {{ tpl $value.name $ | quote }}
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mountPath: {{ tpl $value.mountPath $ | quote }}
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{{- if $value.subPath }}
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subPath: {{ tpl $value.subPath $ | quote }}
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{{- end }}
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{{- if $value.subPathExpr }}
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subPathExpr: {{ tpl $value.subPathExpr $ | quote }}
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{{- end }}
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{{- if $value.readOnly }}
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readOnly: {{ tpl $value.readOnly $ | quote }}
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{{- end }}
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{{- end }}
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restartPolicy: Always
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volumes:
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# Writable emptyDirs backing the read-only root filesystem (see
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# securityContext in values.yaml).
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- name: tmp
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emptyDir: {}
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- name: logs
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emptyDir: {}
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- name: static-files
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emptyDir: {}
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{{- range $value := .Values.voucherVault.storage.volumes }}
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- name: {{ tpl $value.name $ | quote }}
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{{- if $value.persistentVolumeClaim }}
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persistentVolumeClaim:
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claimName: {{ tpl $value.persistentVolumeClaim.claimName $ | quote }}
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{{- if $value.persistentVolumeClaim.readOnly }}
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readOnly: {{ tpl $value.persistentVolumeClaim.readOnly $ | quote }}
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{{- end }}
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{{- else if $value.configMap }}
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configMap:
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name: {{ tpl $value.configMap.name $ | quote }}
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{{- if $value.configMap.defaultMode }}
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defaultMode: {{ tpl $value.configMap.defaultMode $ | quote }}
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{{- end }}
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{{- else if $value.secret }}
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secret:
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secretName: {{ tpl $value.secret.secretName $ | quote }}
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{{- if $value.secret.defaultMode }}
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defaultMode: {{ tpl $value.secret.defaultMode $ | quote }}
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{{- end }}
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{{- if $value.secret.optional }}
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optional: {{ tpl $value.secret.optional $ | quote }}
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{{- end }}
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{{- if $value.secret.items }}
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items:
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{{ range $item := $value.secret.items }}
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- key: {{ tpl $item.key $ | quote }}
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{{- if $item.path }}
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path: {{ tpl $item.path $ | quote }}
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{{- end }}
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{{- if $item.mode }}
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mode: {{ tpl $item.mode $ | quote }}
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{{- end }}
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{{- end }}
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{{- end }}
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{{- else if $value.emptyDir }}
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emptyDir:
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{{- if $value.emptyDir.medium }}
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medium: {{ tpl $value.emptyDir.medium $ | quote }}
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{{- end }}
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{{- if $value.emptyDir.sizeLimit }}
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sizeLimit: {{ tpl $value.emptyDir.sizeLimit $ | quote }}
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{{- end }}
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{{- end }}
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{{- end }} |