{{- include "ytdlp-web-player.validate" . }}
apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ .Release.Name }}-{{ .Chart.Name }}-deployment
  labels:
    app: {{ .Release.Name }}-{{ .Chart.Name }}-deployment
spec:
  replicas: {{ include "ytdlp-web-player.replicas" (dict "scaleDown" .Values.scaleDown "replicas" .Values.ytdlpWebPlayer.replicas) }}
  selector:
    matchLabels:
      app: {{ .Release.Name }}-{{ .Chart.Name }}-deployment
  template:
    metadata:
      name: {{ .Release.Name }}-{{ .Chart.Name }}-deployment
      labels:
        app: {{ .Release.Name }}-{{ .Chart.Name }}-deployment
      # NO checksum/config ANNOTATION HERE, AND NOTHING IS MISSING (#82).
      #
      # The rule is "every pod template consuming a ConfigMap carries a hash of
      # it". This workload consumes none: the application is configured purely
      # through environment variables, which are part of the pod template
      # already, so a changed value rolls the pods by itself. The chart renders
      # no ConfigMap and no Secret for the app - it has no credentials of its
      # own - so there is nothing to hash and no silent-stale-config gap to
      # close. Written down because an absent annotation otherwise looks like
      # an oversight on the next review round.
      #
      # The one Secret this chart can render, the oauth2-proxy OnePasswordItem,
      # is consumed by the SUBCHART's pod template, which this chart cannot
      # annotate. See values.yaml for the manual rollout restart that replaces
      # it.
    spec:
      automountServiceAccountToken: false
      securityContext:
        {{- include "ytdlp-web-player.podSecurityContext" .Values.ytdlpWebPlayer.securityContext | nindent 8 }}
      containers:
        - name: {{ .Release.Name }}-{{ .Chart.Name }}-deployment
          # Fully qualified on purpose: an unqualified "matszwe02/ytdlp_web_player"
          # resolves to Docker Hub implicitly, which is how the repo accumulated
          # its unqualified images.
          image: "docker.io/matszwe02/ytdlp_web_player:{{ .Chart.AppVersion }}"
          imagePullPolicy: IfNotPresent
          env:
            # The four variables the chart owns.
            #
            # DATA_PATH is absolute, which the application explicitly allows (it
            # runs the value through os.path.abspath), so nothing has to be
            # writable below /app and the root filesystem stays read-only.
            #
            # PORT follows the container port named "http", so the Service, the
            # probes and the application cannot drift apart.
            #
            # HOME and XDG_CACHE_HOME point the cache of the two bundled tools
            # at the writable volume below. They are set rather than relying on
            # a mount at /.cache so that the path does not depend on which uid
            # the pod ends up running as - see values.yaml under storage.
            - name: DATA_PATH
              value: "/data"
            - name: PORT
              value: {{ include "ytdlp-web-player.port" . | quote }}
            - name: HOME
              value: "/cache"
            - name: XDG_CACHE_HOME
              value: "/cache"
            {{- range $value := .Values.ytdlpWebPlayer.env }}
            {{- if $value.value }}
            - name: {{ $value.name | quote }}
              # quote is required, not cosmetic: a value like "5000" or "true"
              # renders unquoted as a YAML number/bool, and the API server then
              # rejects the whole manifest with "cannot unmarshal number into
              # Go struct field EnvVar.value of type string".
              value: {{ tpl $value.value $ | quote }}
            {{- else if $value.valueFrom }}
            {{- if $value.valueFrom.secretKeyRef }}
            - name: {{ $value.name }}
              valueFrom:
                secretKeyRef:
                  name: {{ tpl $value.valueFrom.secretKeyRef.name $ | quote }}
                  key: {{ tpl $value.valueFrom.secretKeyRef.key $ | quote }}
            {{- else if $value.valueFrom.configMapKeyRef }}
            - name: {{ $value.name }}
              valueFrom:
                configMapKeyRef:
                  name: {{ tpl $value.valueFrom.configMapKeyRef.name $ | quote }}
                  key: {{ tpl $value.valueFrom.configMapKeyRef.key $ | quote }}
            {{- end }}
            {{- end }}
            {{- end }}
          ports:
            {{- toYaml .Values.ytdlpWebPlayer.ports | nindent 12 }}
          volumeMounts:
            # Exactly two, and each was measured on its own rather than added
            # as a precaution - see values.yaml under storage. Note in
            # particular that /tmp is NOT here: the usual reflex for a
            # read-only root filesystem, and this image does not need it.
            - name: data
              mountPath: /data
            - name: cache
              mountPath: /cache
          # Probes, resources and both security contexts go through the
          # null-safe helpers (#99): an erased block means "chart defaults
          # apply" instead of a vanished probe or an unhardened container.
          # Never wrap these in an "if" - a guard hides the erased case
          # completely instead of rendering a visible null.
          livenessProbe:
            {{- include "ytdlp-web-player.livenessProbe" .Values.ytdlpWebPlayer.livenessProbe | nindent 12 }}
          readinessProbe:
            {{- include "ytdlp-web-player.readinessProbe" .Values.ytdlpWebPlayer.readinessProbe | nindent 12 }}
          startupProbe:
            {{- include "ytdlp-web-player.startupProbe" .Values.ytdlpWebPlayer.startupProbe | nindent 12 }}
          resources:
            {{- include "ytdlp-web-player.effectiveResources" .Values.ytdlpWebPlayer.resources | nindent 12 }}
          securityContext:
            {{- include "ytdlp-web-player.containerSecurityContext" .Values.ytdlpWebPlayer.securityContext | nindent 12 }}
      volumes:
        # The "emptyDir: {}" branches are written out rather than folded into
        # one block with an optional key: an emptyDir whose body renders empty
        # is YAML null, and a volume without a source is rejected by the API
        # server with "must specify a volume type" - after a green render.
        - name: data
          {{- if (.Values.storage).dataSizeLimit }}
          emptyDir:
            sizeLimit: {{ (.Values.storage).dataSizeLimit }}
          {{- else }}
          emptyDir: {}
          {{- end }}
        - name: cache
          {{- if (.Values.storage).cacheSizeLimit }}
          emptyDir:
            sizeLimit: {{ (.Values.storage).cacheSizeLimit }}
          {{- else }}
          emptyDir: {}
          {{- end }}
      restartPolicy: Always