NAS-119343 / 23.10 / add tftpd-hpa (#1195)

* fix a bug in common in regards to sysctls

* add netboot

* switch to tftp container

* perm -> owner

* make small adjustment in permission common container

* update questions

* 2 tests

* no double bump

* update readme

* update  readmes

* test app

* umask

* capability

* update chmod and readmes

* remove test app and update metadata

* untouch

* update readme

* update questions

* update strategy

* Address review

* update image

library/ix-dev/community/tftpd-hpa/Chart.lock

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+dependencies:
+- name: common
+  repository: file://../../../common
+  version: 1.0.8
+digest: sha256:254efaa1285f634b7a80b7baadeadbd20a680f7fee49d1d9d3c4618aa0d657ad
+generated: "2023-05-15T16:04:33.567206466+03:00"

library/ix-dev/community/tftpd-hpa/Chart.yaml

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+name: tftpd-hpa
+description: A lightweight tftp-server
+annotations:
+  title: TFTP Server
+type: application
+version: 1.0.0
+apiVersion: v2
+appVersion: 1.0.0
+kubeVersion: '>=1.16.0-0'
+maintainers:
+  - name: truenas
+    url: https://www.truenas.com/
+    email: dev@ixsystems.com
+dependencies:
+  - name: common
+    repository: file://../../../common
+    version: 1.0.8
+home: https://github.com/truenas/containers/tree/main/apps/tftpd-hpa
+icon: https://avatars.githubusercontent.com/u/53482242
+sources:
+  - https://github.com/truenas/containers/tree/main/apps/tftpd-hpa
+  - https://github.com/truenas/charts/tree/master/community/tftpd-hpa
+  - https://hub.docker.com/r/ixsystems/tftpd-hpa
+keywords:
+  - tftp
+  - netboot

library/ix-dev/community/tftpd-hpa/README.md

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+# TFTP
+
+[TFTP](https://manpages.debian.org/testing/tftpd-hpa/tftpd.8.en.html) is a server for the Trivial File Transfer Protocol.
+
+The app runs as `root` user and drops privileges to `tftp` (9069) user for the TFTP service.
+
+> On every application start, a container will be launched with **root** privileges.
+> This will check the parent directory permissions and ownership.
+> If there is a mismatch it will apply the correct permissions to the TFTP directories.
+> When "Allow Create" is checked, the above container will also check and `chmod` if needed
+> to `757` the TFTP directories and to `555` when not checked.
+> Afterward, the `TFTP` container will run as a **root** user, dropping privileges
+> to `tftp` (9069) user for the TFTP service.
+> Note: You need to have configured DHCP server for network boot to work.

library/ix-dev/community/tftpd-hpa/app-readme.md

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+# TFTP
+
+[TFTP](https://manpages.debian.org/testing/tftpd-hpa/tftpd.8.en.html) is a server for the Trivial File Transfer Protocol.
+
+The app runs as `root` user and drops privileges to `tftp` (9069) user for the TFTP service.
+
+> On every application start, a container will be launched with **root** privileges.
+> This will check the parent directory permissions and ownership.
+> If there is a mismatch it will apply the correct permissions to the TFTP directories.
+> When "Allow Create" is checked, the above container will also check and `chmod` if needed
+> to `757` the TFTP directories and to `555` when not checked.
+> Afterward, the `TFTP` container will run as a **root** user, dropping privileges
+> to `tftp` (9069) user for the TFTP service.
+> Note: You need to have configured DHCP server for network boot to work.

library/ix-dev/community/tftpd-hpa/ci/create-values.yaml

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+tftpStorage:
+  tftpboot:
+    type: hostPath
+    hostPath: /mnt/{{ .Release.Name }}/tftpboot
+tftpConfig:
+  allowCreate: true

library/ix-dev/community/tftpd-hpa/ci/readonly-values.yaml

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+tftpStorage:
+  tftpboot:
+    type: hostPath
+    hostPath: /mnt/{{ .Release.Name }}/tftpboot
+tftpConfig:
+  allowCreate: false

library/ix-dev/community/tftpd-hpa/item.yaml

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+icon_url: https://avatars.githubusercontent.com/u/53482242
+screenshots: []
+categories:
+  - networking
+tags:
+  - tftp

library/ix-dev/community/tftpd-hpa/metadata.yaml

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+runAsContext:
+  - userName: root
+    groupName: root
+    gid: 0
+    uid: 0
+    description: TFTP requires root privileges to start it's processes.
+capabilities:
+  - name: NET_BIND_SERVICE
+    description: TFTP requires this ability to bind to port 69 for TFTP.
+  - name: SETUID
+    description: TFTP requires this ability to switch user for sub-processes.
+  - name: SETGID
+    description: TFTP requires this ability to switch group for sub-processes.
+  - name: SYS_CHROOT
+    description: TFTP requires this ability to use chroot for it's sub-processes.
+hostMounts: []

library/ix-dev/community/tftpd-hpa/questions.yaml

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+groups:
+  - name: TFTP Configuration
+    description: Configure TFTP
+  - name: Network Configuration
+    description: Configure Network for TFTP
+  - name: Storage Configuration
+    description: Configure Storage for TFTP
+  - name: Resources Configuration
+    description: Configure Resources for TFTP
+
+questions:
+  - variable: TZ
+    group: TFTP Configuration
+    label: Timezone
+    schema:
+      type: string
+      default: Etc/UTC
+      required: true
+      $ref:
+        - definitions/timezone
+
+  - variable: tftpConfig
+    label: ""
+    group: TFTP Configuration
+    schema:
+      type: dict
+      attrs:
+        - variable: allowCreate
+          label: Allow Create
+          description: |
+            Allow new files to be created. This is disabled by default.</br>
+            Enabling this will change the permissions of the tftpboot directory to 757.
+            Disabling this will change the permissions of the tftpboot directory to 555.
+          schema:
+            type: boolean
+            default: false
+        - variable: additionalEnvs
+          label: Additional Environment Variables
+          description: Configure additional environment variables for TFTP.
+          schema:
+            type: list
+            default: []
+            items:
+              - variable: env
+                label: Environment Variable
+                schema:
+                  type: dict
+                  attrs:
+                    - variable: name
+                      label: Name
+                      schema:
+                        type: string
+                        required: true
+                    - variable: value
+                      label: Value
+                      schema:
+                        type: string
+                        required: true
+
+  - variable: tftpNetwork
+    label: ""
+    group: Network Configuration
+    schema:
+      type: dict
+      attrs:
+        - variable: hostNetwork
+          label: Host Network
+          description: |
+            Bind to the host network. It's recommended to keep this disabled.</br>
+          schema:
+            type: boolean
+            default: true
+        - variable: tftpPort
+          label: TFTP Port
+          description: |
+            The port for TFTP.
+            When hostNetwork is enabled, the port tftp port will be 69.
+          schema:
+            type: int
+            default: 30000
+            show_if: [["hostNetwork", "=", false]]
+            min: 9000
+            max: 65535
+            required: true
+
+  - variable: tftpStorage
+    label: ""
+    group: Storage Configuration
+    schema:
+      type: dict
+      attrs:
+        - variable: tftpboot
+          label: TFTP Boot Storage
+          description: The path to store TFTP Boot files.
+          schema:
+            type: dict
+            attrs:
+              - variable: type
+                label: Type
+                description: |
+                  ixVolume: Is dataset created automatically by the system.</br>
+                  Host Path: Is a path that already exists on the system.
+                schema:
+                  type: string
+                  required: true
+                  default: "ixVolume"
+                  enum:
+                    - value: "hostPath"
+                      description: Host Path (Path that already exists on the system)
+                    - value: "ixVolume"
+                      description: ixVolume (Dataset created automatically by the system)
+              - variable: datasetName
+                label: Dataset Name
+                schema:
+                  type: string
+                  show_if: [["type", "=", "ixVolume"]]
+                  required: true
+                  hidden: true
+                  immutable: true
+                  default: "tftpboot"
+                  $ref:
+                    - "normalize/ixVolume"
+              - variable: hostPath
+                label: Host Path
+                schema:
+                  type: hostpath
+                  show_if: [["type", "=", "hostPath"]]
+                  immutable: true
+                  required: true
+
+  - variable: resources
+    group: Resources Configuration
+    label: ""
+    schema:
+      type: dict
+      attrs:
+        - variable: limits
+          label: Limits
+          schema:
+            type: dict
+            attrs:
+              - variable: cpu
+                label: CPU
+                description: CPU limit for TFTP.
+                schema:
+                  type: string
+                  default: "4000m"
+                  required: true
+              - variable: memory
+                label: Memory
+                description: Memory limit for TFTP.
+                schema:
+                  type: string
+                  default: "8Gi"
+                  required: true

library/ix-dev/community/tftpd-hpa/templates/NOTES.txt

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+{{ include "ix.v1.common.lib.chart.notes" $ }}

library/ix-dev/community/tftpd-hpa/templates/_tftp.tpl

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+{{- define "tftp.workload" -}}
+workload:
+  tftp:
+    enabled: true
+    primary: true
+    type: Deployment
+    podSpec:
+      hostNetwork: {{ .Values.tftpNetwork.hostNetwork }}
+      containers:
+        tftp:
+          enabled: true
+          primary: true
+          imageSelector: image
+          securityContext:
+            runAsUser: 0
+            runAsGroup: 0
+            runAsNonRoot: false
+            readOnlyRootFilesystem: false
+            capabilities:
+              add:
+                - NET_BIND_SERVICE
+                - SETGID
+                - SETUID
+                - SYS_CHROOT
+          env:
+            MAPFILE: ""
+            SECURE: "1"
+            CREATE: {{ ternary "1" "0" .Values.tftpConfig.allowCreate  | quote }}
+          fixedEnv:
+            UMASK: {{ ternary "020" "" .Values.tftpConfig.allowCreate  | quote }}
+          {{ with .Values.tftpConfig.additionalEnvs }}
+          envList:
+            {{ range $env := . }}
+            - name: {{ $env.name }}
+              value: {{ $env.value }}
+            {{ end }}
+          {{ end }}
+          probes:
+            liveness:
+              enabled: true
+              type: exec
+              command:
+                - /bin/sh
+                - -c
+                - |
+                  getent services tftp
+            readiness:
+              enabled: true
+              type: exec
+              command:
+                - /bin/sh
+                - -c
+                - |
+                  getent services tftp
+            startup:
+              enabled: true
+              type: exec
+              command:
+                - /bin/sh
+                - -c
+                - |
+                  getent services tftp
+      initContainers:
+      {{- include "ix.v1.common.app.permissions" (dict "containerName" "01-permissions"
+                                                        "UID" 9069
+                                                        "GID" 9069
+                                                        "mode" "check"
+                                                        "chmod" (ternary "757" "555" .Values.tftpConfig.allowCreate)
+                                                        "type" "init") | nindent 8 }}
+
+
+{{/* Service */}}
+service:
+  tftp:
+    enabled: true
+    primary: true
+    type: NodePort
+    targetSelector: tftp
+    ports:
+      tftp:
+        enabled: true
+        primary: true
+        port: {{ .Values.tftpNetwork.tftpPort }}
+        nodePort: {{ .Values.tftpNetwork.tftpPort }}
+        targetPort: 69
+        protocol: udp
+        targetSelector: tftp
+
+{{/* Persistence */}}
+persistence:
+  tftpboot:
+    enabled: true
+    type: {{ .Values.tftpStorage.tftpboot.type }}
+    datasetName: {{ .Values.tftpStorage.tftpboot.datasetName | default "" }}
+    hostPath: {{ .Values.tftpStorage.tftpboot.hostPath | default "" }}
+    targetSelector:
+      tftp:
+        tftp:
+          mountPath: /tftpboot
+        01-permissions:
+          mountPath: /mnt/directories/tftpboot
+{{- end -}}

library/ix-dev/community/tftpd-hpa/templates/common.yaml

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+{{- include "ix.v1.common.loader.init" . -}}
+
+{{/* Merge the templates with Values */}}
+{{- $_ := mustMergeOverwrite .Values (include "tftp.workload" $ | fromYaml) -}}
+
+{{- include "ix.v1.common.loader.apply" . -}}

library/ix-dev/community/tftpd-hpa/upgrade_info.json

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+{"filename": "values.yaml", "keys": ["image"]}

library/ix-dev/community/tftpd-hpa/upgrade_strategy

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+#!/usr/bin/python3
+import json
+import re
+import sys
+
+from catalog_update.upgrade_strategy import semantic_versioning
+
+RE_STABLE_VERSION = re.compile(r'[1-9]+\.[0-9]+\.[0-9]+')
+
+
+def newer_mapping(image_tags):
+    key = list(image_tags.keys())[0]
+    tags = {t: t for t in image_tags[key] if RE_STABLE_VERSION.fullmatch(t)}
+    version = semantic_versioning(list(tags))
+    if not version:
+        return {}
+
+    return {
+        'tags': {key: tags[version]},
+        'app_version': version,
+    }
+
+
+if __name__ == '__main__':
+    try:
+        versions_json = json.loads(sys.stdin.read())
+    except ValueError:
+        raise ValueError('Invalid json specified')
+
+    print(json.dumps(newer_mapping(versions_json)))

library/ix-dev/community/tftpd-hpa/values.yaml

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+image:
+  repository: ixsystems/tftpd-hpa
+  pullPolicy: IfNotPresent
+  tag: '1.0.0'
+
+resources:
+  limits:
+    cpu: 4000m
+    memory: 8Gi
+
+tftpConfig:
+  allowCreate: true
+  additionalEnvs: []
+tftpNetwork:
+  hostNetwork: true
+  # Only used if hostNetwork is false
+  tftpPort: 30000
+tftpStorage:
+  tftpboot:
+    type: ixVolume
+    datasetName: tftpboot