Merge pull request 'feat(plex): wire PLEX_CLAIM from a SOPS Secret (placeholder value)' (#1) from feat/plex-claim-sops-secret into main

Reviewed-on: #1

apps/wave-0/kustomization.yaml

@@ -17,6 +17,7 @@ resources:
 - pihole-dns.yaml
 - pihole-oauth2-proxy-credentials.sops.yaml
 - pihole.yaml
+- plex-claim-secret.sops.yaml
 - plex.yaml
 - qbittorrent-bootstrap-secret.sops.yaml
 - qbittorrent-oauth2-proxy-credentials.sops.yaml

apps/wave-0/plex-claim-secret.sops.yaml

@@ -0,0 +1,69 @@
+# Plex plex.tv server-claim token (WS-APPS). SOPS-encrypted (age).
+# Consumed by catalog/plex.yaml as env PLEX_CLAIM via valueFrom.secretKeyRef.
+#
+# NOTE ON THESE COMMENTS: they carry NO dollar-brace expressions, deliberately. This file is applied
+# by the apps-wave-0 Flux Kustomization, which runs envsubst over the built output, and kustomize
+# preserves body comments into that stream (see conformance/tests/l0-static/flux-postbuild-
+# substitution). A braced token quoted from the upstream shell script would be a live hazard here,
+# not prose, so the upstream conditions below are described in words.
+#
+# THE VALUE SHIPPED WITH THIS FILE IS A PLACEHOLDER, DELIBERATELY — the literal string
+# `replace-me-with-a-fresh-plex-tv-claim-token`, not a credential. A https://plex.tv/claim token has
+# a ~4-minute TTL, far shorter than commit -> push -> Flux reconcile -> pod-roll, so no token
+# committed here is ever still valid when the pod starts. This file exists to make the Secret — and
+# therefore the env reference — ALWAYS RESOLVABLE IN THE FLUX GRAPH, not to carry a working token.
+# The real token is injected by the operator inside that 4-minute window: runbooks/plex-claim.md.
+#
+# WHY SHIPPING A PLACEHOLDER IS SAFE (verified against plexinc/pms-docker branch `master`, the
+# s6-overlay v2 script root/etc/cont-init.d/40-plex-first-run, cross-checked byte-identical against
+# the same file extracted from the running `plexinc/pms-docker:latest` image):
+#   - line 106 guards the claim exchange on TWO conditions: PLEX_CLAIM non-empty AND the
+#     PlexOnlineToken pref read out of /config empty. Once the server is claimed that block is
+#     skipped entirely, so whatever this Secret holds is a NO-OP on every later start. Upstream
+#     README: "If server is already logged in, this parameter is ignored."
+#   - on a still-UNCLAIMED /config, an invalid or expired token makes plex.tv answer 403 with an
+#     empty body. curl's exit status is never checked, the sed for the authentication-token element
+#     yields the empty string, and the success branch at line 120 simply does not fire. There is no
+#     else branch and no non-zero exit; the script has no `set -e` and ends by touching
+#     /.firstRunComplete and echoing, so it exits 0. The server comes up UNCLAIMED and serving.
+#     It does NOT crashloop.
+#   - the image never sets S6_BEHAVIOUR_IF_STAGE2_FAILS, whose default is 0 ("continue silently even
+#     if a cont-init script failed"), so even a hypothetical non-zero exit would not halt startup.
+# A MISSING Secret would NOT be safe: the ServiceDefinition schema's valueFrom.secretKeyRef shape
+# has no `optional` field, so an absent Secret is a hard CreateContainerConfigError. That is exactly
+# why this file is committed and listed in apps/wave-0/kustomization.yaml instead of being created
+# by hand at claim time.
+#
+# INJECTION / ROTATION (operator, not agents) — runbooks/plex-claim.md has the timed procedure:
+#   infra/devcontainer/dev.sh run sops apps/wave-0/plex-claim-secret.sops.yaml
+# Never decrypt this file into a shell, a log, or a shared terminal.
+apiVersion: v1
+kind: Secret
+metadata:
+    name: plex-claim
+    namespace: plex
+    labels:
+        app.kubernetes.io/name: plex
+type: Opaque
+stringData:
+    PLEX_CLAIM: ENC[AES256_GCM,data:8O9nvFw+6OR+53mXvHfe321aSmYUQcZuAqLKZpcSlUwNyeU+Nbp/tRPBlg==,iv:EbvvOsXlXjAFOewnWbK28ErmUdWcJJN0Q5Gm53El3ZM=,tag:wXaInGFQ+wqUt765vvjCDA==,type:str]
+sops:
+    kms: []
+    gcp_kms: []
+    azure_kv: []
+    hc_vault: []
+    age:
+        - recipient: age175l8mdpdfu7hq0aml3exs3gykarwjmuvr23sq56s3wjejnyk44wsp4mfzg
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSA2dWtqOVNQalZ2QlRxOXJa
+            cDc1MTdtWENkdWIxS1JId3dIU1JDSmk0ODNrCk1YUzhFWXR3bUxyV2NNcmFOakdz
+            THl1Q284dFJxTy9Rd1h0eXJJaVZtdmcKLS0tIERuN0ZFeW9zdi9aNFRYNWxmUS9s
+            QUtYdHEvN042ajNoNktOLzlYQmQrc1kK4NHozMbXVzNGYbUBRbK6a9Uw/sVPAfe6
+            RW5KWzZ4I/hloqjN3zzVISoSMieMkBGDnF5qZS5N6FqIc6/HrsDD8A==
+            -----END AGE ENCRYPTED FILE-----
+    lastmodified: "2026-09-29T03:25:20Z"
+    mac: ENC[AES256_GCM,data:u5uVmOdXN78UaKUMkPZzqeW84222+tcG57rFKIKcvRKwJkzMTOuSFOeQpKh4eK4KZXVKK7+Q3mFf5G8a+jjuKjYbjSCpR38AF3TJv3xrj8fhnqR+8QHRp8tsgA0jJZBS55N7KKDyOztLFo49sI7mNnlrUwhWTQUkbLgN1LxF5MA=,iv:P4W9G2mI/3VTkvSrDZvnkJ0Qxb1nFmXcF35CrSNhako=,tag:yVsg7xsUALUoCJH0cHfQjw==,type:str]
+    pgp: []
+    encrypted_regex: ^(data|stringData)$
+    version: 3.9.4

apps/wave-0/plex.yaml

@@ -132,6 +132,11 @@ spec:
           value: Etc/UTC
         - name: ALLOWED_NETWORKS
           value: 10.0.0.0/8,192.168.0.0/16
+        - name: PLEX_CLAIM
+          valueFrom:
+            secretKeyRef:
+              name: plex-claim
+              key: PLEX_CLAIM
         volumeMounts:
         - name: config
           mountPath: /config