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helm-charts/freesailarr/templates/NOTES.txt
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jklein 78d7020dab freesailarr: MediathekArr as the tenth container, off by default (3.1.0+up1.0.0)
MediathekArr fakes a Usenet indexer towards Prowlarr and a SABnzbd downloader
towards Sonarr/Radarr and fetches from the ARD and ZDF media libraries. Both
consumers already share gluetun's network namespace, so they reach it over
127.0.0.1 - no service, no DNS, no ingress detour. Purely additive: the flag
defaults to false and a default render is byte-identical to 3.0.5 (verified
against the previous chart for both the default values and the CI values).

The four things that fail silently without them:

- A START GATE on gluetun. MediathekArr fetches its ruleset once at start and
  never retries; started before the tunnel it answers every Newznab search with
  0 results while the container is up, Ready and quiet. Kubernetes cannot order
  two regular containers and an initContainer would deadlock, so the wait sits
  in front of the image entrypoint: poll gluetun's health server on
  127.0.0.1:9999 and exec the entrypoint afterwards; on timeout the container
  exits rather than starting blind, because a crash loop is visible and an empty
  indexer is not. The startup probe budget (300s) deliberately outlasts the gate
  (180s).
- incomplete/ AND complete/ ON THE SHARED DOWNLOADS CLAIM, not in an emptyDir.
  An emptyDir counts against the container's ephemeral-storage limit, and one
  large download would have the kubelet evict the whole pod with all ten
  containers - the trap ytdlp-web-player documents.
- THE COMPLETE PATH SONARR SEES. The claim is mounted at /downloads exactly as
  sonarr/radarr mount it, and the chart sets DOWNLOAD_COMPLETE_PATH itself, so
  the SABnzbd complete_dir it reports is the same absolute path on both sides.
- TWO PORTS: 5007 (SABnzbd role and UI, primary) and 5008 (Newznab role for
  Prowlarr), both declared to gluetun's firewall and both on one Service. The
  SABnzbd API is at /download/api - /api on 5007 answers with a misleading
  Newznab validation error.

Further details:

- Image pinned by digest (tag + digest): "latest" is a 2024 build, "beta"
  moves. Single-arch linux/amd64. The built-in helm-values manager cannot
  follow that pair, so renovate.json5 gets the chart's first customManagers
  block; verified by dry-run with two fixtures, since a matching and a broken
  rule look identical while the pin is current.
- Hardened as measured: non-root, uid/gid from puid/pgid,
  readOnlyRootFilesystem: true, all capabilities dropped, no PUID/PGID.
- Probes on measured 200 endpoints (there is no health endpoint): readiness and
  startup on /download/, liveness as an exec covering BOTH ports, because one
  container runs two processes and a wedged Newznab half is exactly what makes
  searches come back empty.
- No ingress by default: the UI links its assets with root-absolute paths, so it
  can only be served at the root of a host; on the shared domain that root
  belongs to seerr. A sub-path fails the render instead of producing a broken
  UI.
- values.yaml and NOTES.txt document the geo MARKER PROCEDURE (not a table of
  series), the escape route of a German exit and its price for the whole stack,
  the fail_message: null trap, and the HLS question as an open question.
- CI: mediathekarr enabled in ci/freesailarr/test-values.yaml, install timeout
  raised to 1200s for the extra image and the gate.

Fixes #245
2026-09-08 23:20:16 +02:00

298 lines
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{{- $name := printf "%s-%s" .Release.Name .Chart.Name -}}
{{- $replicas := include "freesailarr.replicas" (dict "scaleDown" .Values.scaleDown "replicas" .Values.replicas) -}}
{{- /* The effective (null-safe) startup probe, so the budget below matches the
container even when the block has been erased (#99). */ -}}
{{- $startup := fromYaml (include "freesailarr.probeFor" (dict "root" $ "app" "gluetun" "kind" "startupProbe" "given" .Values.gluetun.startupProbe)) -}}
{{- $budget := mul (int $startup.periodSeconds) (int $startup.failureThreshold) -}}
{{- $ingressApps := include "freesailarr.ingressApps" . | fromJsonArray -}}
{{- $portApps := include "freesailarr.portApps" . | fromJsonArray -}}
{{- $sharedHost := .Values.ingress.host | default "" -}}
{{- $shared := include "freesailarr.sharedIngressApps" . | fromJsonArray -}}
{{- $sharedNames := list -}}
{{- range $shared }}{{ $sharedNames = append $sharedNames .name }}{{ end -}}
freesailarr — release {{ .Release.Name }} in namespace {{ .Release.Namespace }}.
{{ if .Values.mediathekarr.enabled }}Ten{{ else }}Nine{{ end }} containers in ONE pod, sharing gluetun's network namespace.
NOTHING IS READY UNTIL THE TUNNEL IS UP
gluetun's readiness probe is its health server, which answers 200 only while
the Wireguard tunnel is actually working. So "pod not Ready" almost always
means "no tunnel", not "app broken". The startup budget is {{ $budget }}s before
Kubernetes starts killing the container:
kubectl -n {{ .Release.Namespace }} logs {{ $name }}-sfs-0 -c gluetun -f
While gluetun is down its firewall keeps blocking every app container's
egress. That is the kill switch doing its job — the apps stay up and simply
reach nothing.
THE 1PASSWORD ITEM AND THE TWO FIELDS IT MUST CONTAIN
secrets.gluetunSecretRef -> {{ .Values.secrets.gluetunSecretRef | default "(not set)" }}
wireguard-private-key
wireguard-addresses
A missing field does not fail the install: gluetun starts with the variable
empty and never completes a handshake.
kubectl -n {{ .Release.Namespace }} get onepassworditem {{ $name }}-gluetun-secret
{{- if not .Values.gluetun.vpn.firewallOutboundSubnets }}
SET gluetun.vpn.firewallOutboundSubnets — IT IS EMPTY RIGHT NOW
Without it the gluetun firewall blocks cluster-internal egress as well:
lookups against cluster DNS and seerr reaching an in-cluster Jellyfin both
fail, in a way that looks like an application bug. Set it to the cluster pod
and service CIDRs, e.g. "10.42.0.0/16,10.43.0.0/16" on k3s.
{{- end }}
ACCESS
{{- if and .Values.ingress.enabled $ingressApps }}
{{- range $shared }}
{{ .name }}: https://{{ $sharedHost }}{{ if ne .path "/" }}{{ .path }}{{ end }}
{{- end }}
{{- range $ingressApps }}
{{- $cfg := (index $.Values .name).ingress }}
{{- if not (has .name $sharedNames) }}
{{ .name }}: https://{{ $cfg.host }}
{{- end }}
{{- end }}
{{- if $shared }}
These apps share one host, one Ingress and one certificate.
{{- if has "bazarr" $sharedNames }}
BAZARR NEEDS ONE MANUAL STEP UNDER A SUB-PATH
Bazarr reads its base path only from its own configuration - it has no
environment variable for it, so the chart cannot set it. Open bazarr,
go to Settings -> General -> Base URL, enter
{{ include "freesailarr.appPath" (dict "root" $ "app" "bazarr") }}
and restart the pod. Until then bazarr answers only at the root and the
sub-path shows a broken UI. radarr, sonarr and prowlarr need nothing -
the chart sets their UrlBase itself.
{{- end }}
{{- if has "qbittorrent" $sharedNames }}
QBITTORRENT SITS BEHIND A PREFIX-STRIPPING REWRITE
It has no base path of its own, so it gets a second Ingress object on the
same host whose rewrite cuts the prefix off. Two things there look exactly
like a login failure and send you looking in the wrong place: its session
cookie is marked "Secure" (over plain HTTP the browser never sends it back
and every click bounces to the login form), and it bans the client IP for a
while after a few failed attempts. If it does not work at all, set
qbittorrent.ingress.host and it is back on a host of its own - no chart
change needed.
{{- end }}
{{- if not (has "seerr" $sharedNames) }}
NOTHING SERVES THE ROOT OF {{ $sharedHost }}
seerr is the app that sits at "/" and it is not on the shared host, so
https://{{ $sharedHost }}/ answers 404. The sub-paths are unaffected.
{{- end }}
{{- end }}
Every app listed with a host of its own has its OWN Ingress and its own TLS
secret. While cert-manager is still issuing, the browser warns:
kubectl -n {{ .Release.Namespace }} get certificate
{{- else }}
No Ingress is rendered{{ if not .Values.ingress.enabled }} (ingress.enabled is false){{ end }}. Reach an app through its own service:
{{- range $portApps }}
kubectl -n {{ $.Release.Namespace }} port-forward svc/{{ $name }}-{{ .name }}-service {{ .port }}:{{ .port }}
{{- end }}
{{- end }}
{{- if .Values.qbittorrent.enabled }}
qBittorrent's WebUI rejects a Host header whose port differs from its own
({{ "8080" }}) with a plain 401. A port-forward on a different local port therefore
looks like a login failure — forward 8080:8080, or go through the ingress.
{{- if .Values.qbittorrent.savePath }}
QBITTORRENT DOWNLOADS GO TO {{ .Values.qbittorrent.savePath }}
The chart seeds Session\DefaultSavePath into qBittorrent's config, because
its built-in default is /config/Downloads — the config volume{{ with .Values.qbittorrent.storage.size }} ({{ . }}){{ end }}, which
fills within minutes and puts EVERY torrent into "errored" while a large,
empty media volume sits next to it. The failure looks like a network or VPN
problem; only "df" shows what it is.
The value is seeded ONLY when the key is absent, never replaced. So if you
changed the path in the WebUI, it stays yours and this value does nothing —
check which one is actually in effect:
kubectl -n {{ .Release.Namespace }} exec {{ $name }}-sfs-0 -c qbittorrent -- \
grep SavePath /config/qBittorrent/qBittorrent.conf
If that shows a path under /config, downloads are landing on the config
volume: fix it under Options -> Downloads -> Default Save Path (the running
app owns the file; editing it under the app is overwritten on exit).
{{- else }}
QBITTORRENT HAS NO SAVE PATH SET (qbittorrent.savePath is empty)
It therefore falls back to /config/Downloads — the small config volume. That
fills within minutes and puts every torrent into "errored". Either set
qbittorrent.savePath or set Options -> Downloads -> Default Save Path in the
WebUI before starting any download.
{{- end }}
{{- end }}
{{- if .Values.mediathekarr.enabled }}
{{- $dir := .Values.mediathekarr.downloads.directory }}
{{- $gate := .Values.mediathekarr.startGate }}
{{- $mediaStartup := fromYaml (include "freesailarr.probeFor" (dict "root" $ "app" "mediathekarr" "kind" "startupProbe" "given" .Values.mediathekarr.startupProbe)) }}
MEDIATHEKARR: TWO PORTS, AND THE SABNZBD API IS NOT AT /api
Every container shares one network namespace, so both consumers reach it over
127.0.0.1 — no service name, no DNS, no ingress:
Prowlarr -> Newznab indexer, http://127.0.0.1:5008
Sonarr/Radarr -> SABnzbd host 127.0.0.1, port 5007, API path /download/api
A request to /api on 5007 answers with a Newznab validation error and sends
you looking at the wrong half of the app — the upstream documentation only
mentions port 5007 at all.
Sonarr and Radarr must import from
/downloads/{{ $dir }}/complete (one sub-directory per category below it)
which is exactly the path the chart hands MediathekArr and which it reports
back as the SABnzbd complete_dir. Any deviation — a remote path mapping, a
different mount — imports NOTHING, without an error.
The UI (setup wizard and download queue) has no ingress{{ if and .Values.mediathekarr.ingress.enabled .Values.mediathekarr.ingress.host }}, other than the one
you gave it on {{ .Values.mediathekarr.ingress.host }}{{ end }}:
kubectl -n {{ .Release.Namespace }} port-forward svc/{{ $name }}-mediathekarr-service 5007:5007
{{- if $gate.enabled }}
IT DELIBERATELY STARTS LATE, AND THAT IS THE POINT
The container waits (up to {{ $gate.timeoutSeconds }}s) for gluetun to report healthy before
it starts MediathekArr{{ if gt (int $gate.settleSeconds) 0 }}, plus {{ $gate.settleSeconds }}s of settling time{{ end }}. Started before the tunnel,
MediathekArr fails its one ruleset fetch, never retries it, and then answers
EVERY search with 0 results — container up, Ready, nothing in the log. That
is why a green pod proves nothing here and why the gate exits instead of
starting anyway on timeout: a crash-looping container is visible, a silently
empty indexer is not.
kubectl -n {{ .Release.Namespace }} logs {{ $name }}-sfs-0 -c mediathekarr | head -3
The startup probe has to outlast the gate ({{ mul (int $mediaStartup.periodSeconds) (int $mediaStartup.failureThreshold) }}s budget against a {{ $gate.timeoutSeconds }}s gate),
otherwise the kubelet kills the container while it is still waiting.
{{- else }}
THE START GATE IS OFF (mediathekarr.startGate.enabled: false)
MediathekArr may then start before the Wireguard tunnel is up. Its ruleset
fetch fails once, is never retried, and the indexer answers every search
with 0 results afterwards — measured over eleven minutes, with the container
up, Ready and no error anywhere. Nothing reports this state. Check a search
by hand after every restart, or switch the gate back on.
{{- end }}
A FAILED MEDIATHEKARR DOWNLOAD NEVER SAYS WHY
MediathekArr does not check the HTTP status code. On a geo-blocked fetch it
writes the ~476-byte HTML error page out as .mp4 and logs "Download
completed"; only mkvmerge then refuses the file and the status flips to
Failed — with fail_message: null. Measured A/B with one identical NZB:
direct 94,235,525 bytes and Completed, through a foreign exit 0 bytes and
Failed, fail_message null in BOTH cases.
So a geo block is indistinguishable from a broken server, an expired URL or a
full disk, in Sonarr and in the container log alike. And the protection is an
accident: it rests entirely on mkvmerge rejecting an HTML page. Anything a
geo endpoint returns that mkvmerge accepts is reported as Completed and walks
into your library.
WHETHER A SHOW WORKS THROUGH YOUR EXIT: READ THE MARKER, NOT A LIST
The tunnel currently exits {{ with .Values.gluetun.vpn.serverCities }}in {{ . }}{{ else }}{{ with .Values.gluetun.vpn.serverCountries }}in {{ . }}{{ else }}wherever gluetun picks{{ end }}{{ end }}. ARD and ZDF block parts of their
catalogue outside Germany, and every container hangs in gluetun's namespace —
there is no per-container exit.
A table of series goes stale; the marker in the media URL does not. It
predicted the outcome in 584 of 584 measured cases:
/de/, /geo/de/, /deutschlandweit/, geoavailability_D -> blocked outside DE
/weltweit/ -> open
/none/ (ZDF) -> open
/dach/, deChAt (WDR variant) -> open
The rule of thumb "own production = available worldwide" is MEASURABLY WRONG
(an ARD own production was blocked, a licensed series was open). Only the
marker counts.
The escape route is one value — gluetun.vpn.serverCountries/serverCities set
to a German exit — and its price is that it moves the WHOLE stack, all ten
containers, qBittorrent included, into that jurisdiction and onto those
servers. That is a deployment decision, not a chart setting to flip lightly.
OPEN, EXPLICITLY UNMEASURED: HLS ENTRIES
Part of the catalogue is served as an HLS playlist instead of a progressive
MP4. The image carries an ffmpeg-based M3U8 path, but whether such an entry
completes end to end has not been measured. If it does not, those entries fail
regardless of any geo block — and, per the paragraph above, without a reason.
{{- end }}
EVERY SERVICE POINTS AT THE SAME POD IP
One ClusterIP service per app{{ if .Values.recyclarr.enabled }} (recyclarr has none — no port in daemon mode){{ end }}, but all
containers share gluetun's network namespace, so the services differ only in
their port. They give you stable per-app DNS names, NOT network separation
between the apps.
TOGGLING AN APP OFF AND ON LATER NEEDS ONE MANUAL STEP
The config volumes come from volumeClaimTemplates, and those are immutable.
Changing any <app>.enabled after the first install makes the upgrade fail
until the StatefulSet is recreated — the data survives:
kubectl -n {{ .Release.Namespace }} delete statefulset {{ $name }}-sfs --cascade=orphan
THE MEDIA CLAIMS ARE YOURS, THE CONFIG VOLUMES ARE THE CHART'S
media.<category>.existingClaim is mounted, never created, and is meant to be
shared with your Jellyfin. One claim can serve all three categories via
media.<category>.subPath.
Measured, so you do not plan around something that does not happen: Radarr
and Sonarr do NOT hardlink between the categories, not even on one claim.
Kubernetes makes every volumeMount its own bind mount and link() across two
mount points fails with EXDEV regardless of subPath, so an import copies.
HARDLINKS NEED ONE MOUNT, NOT ONE CLAIM
This is the point where the obvious conclusion is wrong, so it is spelled
out: putting downloads on the same claim as movies and tv, as a third
subPath, does NOT produce hardlinks. It buys the layout, nothing else.
The kernel compares the VFSMOUNT in do_linkat, not the superblock, and two
bind mounts of the same filesystem are two vfsmounts — so link() across
them is EXDEV even though it is one volume. Measured on Longhorn/NFS: both
mount points report st_dev 0:56, the mount table shows two mount IDs on
that same device, a cross-mount link() fails, a link() inside one mount
succeeds with link count 2.
Note the trap in that measurement: "stat" reports the SAME device number
on both sides. Every intuition says a hardlink must work there. It does
not, and the device number is exactly what makes this look like a bug in
the app instead of a property of the mount namespace.
The layout that WOULD hardlink is one claim with exactly ONE mount and the
categories as sub-directories inside it — the "single /data mount" the *arr
guides recommend. This chart cannot express that today: it mounts each
category separately. Naming the possibility, not giving instructions —
there are no values for it.
The containers write as {{ .Values.puid }}:{{ .Values.pgid }}. The claim's root directory has to be
writable for them, and a subPath directory the kubelet creates inherits that
root's mode — so fix the ownership before the first start. The pod will not
do it for you: fsGroupChangePolicy is OnRootMismatch so a large library is
not re-chowned on every start, and on an RWX claim a driver like Longhorn
(fsGroupPolicy ReadWriteOnceWithFSType) ignores fsGroup altogether.
{{- if eq $replicas "0" }}
SCALED TO ZERO
{{ if .Values.scaleDown }}scaleDown: true{{ else }}replicas: 0{{ end }} — the StatefulSet runs with replicas: 0. PVCs, secrets,
services{{ if .Values.ingress.enabled }} and ingresses{{ end }} stay in place; set it back and upgrade to bring the
stack up again.
{{- else if ne $replicas "1" }}
MORE THAN ONE REPLICA IS NOT MEANINGFUL
replicas is {{ $replicas }}. Each replica would run its own isolated stack on its own
config volumes, all of them fighting over the same media claims and the same
VPN credentials.
{{- end }}