From 9f30998fbf870b60ebfd5a3f4be9b549ec19f91d Mon Sep 17 00:00:00 2001
From: "Dustin C. Hatch" <dustin@hatch.name>
Date: Tue, 5 Nov 2024 06:21:38 -0600
Subject: [PATCH] r/jellyfin: Enable Prometheus metrics

Jellyfin can expose metrics in Prometheus format, but this functionality
is disabled by default.  To enable it, we must set `EnableMetrics` in
the configuration file.  This commit adds a template configuration file
that uses the `jellyfin_enable_metrics` Ansible variable to control this
value.
---
 roles/jellyfin/defaults/main.yml       |   1 +
 roles/jellyfin/tasks/deploy.yml        |  22 +++
 roles/jellyfin/templates/system.xml.j2 | 191 +++++++++++++++++++++++++
 3 files changed, 214 insertions(+)
 create mode 100644 roles/jellyfin/templates/system.xml.j2

diff --git a/roles/jellyfin/defaults/main.yml b/roles/jellyfin/defaults/main.yml
index 8a5cd77..6e0005f 100644
--- a/roles/jellyfin/defaults/main.yml
+++ b/roles/jellyfin/defaults/main.yml
@@ -1,5 +1,6 @@
 jellyfin_version: latest
 jellyfin_container_image: docker.io/jellyfin/jellyfin
+jellyfin_enable_metrics: true
 jellyfin_media_dirs:
 - /srv/cifs/Music
 - /srv/cifs/Movies
diff --git a/roles/jellyfin/tasks/deploy.yml b/roles/jellyfin/tasks/deploy.yml
index 12dff67..07c9f0e 100644
--- a/roles/jellyfin/tasks/deploy.yml
+++ b/roles/jellyfin/tasks/deploy.yml
@@ -37,6 +37,28 @@
     state: directory
   tags:
   - datadir
+
+- name: ensure jellyfin configuration directory exists
+  file:
+    path: /var/lib/jellyfin/config
+    owner: jellyfin
+    group: jellyfin
+    mode: u=rwx,go=rx
+    state: directory
+  tags:
+  - config
+
+- name: ensure jellyfin system is configured
+  template:
+    src: system.xml.j2
+    dest: /var/lib/jellyfin/config/system.xml
+    owner: jellyfin
+    group: jellyfin
+    mode: u=rw,go=r
+  tags:
+  - config
+  notify:
+  - restart jellyfin
   
 - name: ensure jellyfin environment is configured
   template:
diff --git a/roles/jellyfin/templates/system.xml.j2 b/roles/jellyfin/templates/system.xml.j2
new file mode 100644
index 0000000..f40365f
--- /dev/null
+++ b/roles/jellyfin/templates/system.xml.j2
@@ -0,0 +1,191 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ServerConfiguration xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
+  <LogFileRetentionDays>3</LogFileRetentionDays>
+  <IsStartupWizardCompleted>true</IsStartupWizardCompleted>
+  <EnableMetrics>{{ jellyfin_enable_metrics|string|lower }}</EnableMetrics>
+  <EnableNormalizedItemByNameIds>true</EnableNormalizedItemByNameIds>
+  <IsPortAuthorized>true</IsPortAuthorized>
+  <QuickConnectAvailable>true</QuickConnectAvailable>
+  <EnableCaseSensitiveItemIds>true</EnableCaseSensitiveItemIds>
+  <DisableLiveTvChannelUserDataName>true</DisableLiveTvChannelUserDataName>
+  <MetadataPath />
+  <MetadataNetworkPath />
+  <PreferredMetadataLanguage>en</PreferredMetadataLanguage>
+  <MetadataCountryCode>US</MetadataCountryCode>
+  <SortReplaceCharacters>
+    <string>.</string>
+    <string>+</string>
+    <string>%</string>
+  </SortReplaceCharacters>
+  <SortRemoveCharacters>
+    <string>,</string>
+    <string>&amp;</string>
+    <string>-</string>
+    <string>{</string>
+    <string>}</string>
+    <string>'</string>
+  </SortRemoveCharacters>
+  <SortRemoveWords>
+    <string>the</string>
+    <string>a</string>
+    <string>an</string>
+  </SortRemoveWords>
+  <MinResumePct>5</MinResumePct>
+  <MaxResumePct>90</MaxResumePct>
+  <MinResumeDurationSeconds>300</MinResumeDurationSeconds>
+  <MinAudiobookResume>5</MinAudiobookResume>
+  <MaxAudiobookResume>5</MaxAudiobookResume>
+  <InactiveSessionThreshold>0</InactiveSessionThreshold>
+  <LibraryMonitorDelay>60</LibraryMonitorDelay>
+  <LibraryUpdateDuration>30</LibraryUpdateDuration>
+  <ImageSavingConvention>Legacy</ImageSavingConvention>
+  <MetadataOptions>
+    <MetadataOptions>
+      <ItemType>Book</ItemType>
+      <DisabledMetadataSavers />
+      <LocalMetadataReaderOrder />
+      <DisabledMetadataFetchers />
+      <MetadataFetcherOrder />
+      <DisabledImageFetchers />
+      <ImageFetcherOrder />
+    </MetadataOptions>
+    <MetadataOptions>
+      <ItemType>Movie</ItemType>
+      <DisabledMetadataSavers />
+      <LocalMetadataReaderOrder />
+      <DisabledMetadataFetchers />
+      <MetadataFetcherOrder />
+      <DisabledImageFetchers />
+      <ImageFetcherOrder />
+    </MetadataOptions>
+    <MetadataOptions>
+      <ItemType>MusicVideo</ItemType>
+      <DisabledMetadataSavers />
+      <LocalMetadataReaderOrder />
+      <DisabledMetadataFetchers>
+        <string>The Open Movie Database</string>
+      </DisabledMetadataFetchers>
+      <MetadataFetcherOrder />
+      <DisabledImageFetchers>
+        <string>The Open Movie Database</string>
+      </DisabledImageFetchers>
+      <ImageFetcherOrder />
+    </MetadataOptions>
+    <MetadataOptions>
+      <ItemType>Series</ItemType>
+      <DisabledMetadataSavers />
+      <LocalMetadataReaderOrder />
+      <DisabledMetadataFetchers />
+      <MetadataFetcherOrder />
+      <DisabledImageFetchers />
+      <ImageFetcherOrder />
+    </MetadataOptions>
+    <MetadataOptions>
+      <ItemType>MusicAlbum</ItemType>
+      <DisabledMetadataSavers />
+      <LocalMetadataReaderOrder />
+      <DisabledMetadataFetchers>
+        <string>TheAudioDB</string>
+      </DisabledMetadataFetchers>
+      <MetadataFetcherOrder />
+      <DisabledImageFetchers />
+      <ImageFetcherOrder />
+    </MetadataOptions>
+    <MetadataOptions>
+      <ItemType>MusicArtist</ItemType>
+      <DisabledMetadataSavers />
+      <LocalMetadataReaderOrder />
+      <DisabledMetadataFetchers>
+        <string>TheAudioDB</string>
+      </DisabledMetadataFetchers>
+      <MetadataFetcherOrder />
+      <DisabledImageFetchers />
+      <ImageFetcherOrder />
+    </MetadataOptions>
+    <MetadataOptions>
+      <ItemType>BoxSet</ItemType>
+      <DisabledMetadataSavers />
+      <LocalMetadataReaderOrder />
+      <DisabledMetadataFetchers />
+      <MetadataFetcherOrder />
+      <DisabledImageFetchers />
+      <ImageFetcherOrder />
+    </MetadataOptions>
+    <MetadataOptions>
+      <ItemType>Season</ItemType>
+      <DisabledMetadataSavers />
+      <LocalMetadataReaderOrder />
+      <DisabledMetadataFetchers />
+      <MetadataFetcherOrder />
+      <DisabledImageFetchers />
+      <ImageFetcherOrder />
+    </MetadataOptions>
+    <MetadataOptions>
+      <ItemType>Episode</ItemType>
+      <DisabledMetadataSavers />
+      <LocalMetadataReaderOrder />
+      <DisabledMetadataFetchers />
+      <MetadataFetcherOrder />
+      <DisabledImageFetchers />
+      <ImageFetcherOrder />
+    </MetadataOptions>
+  </MetadataOptions>
+  <SkipDeserializationForBasicTypes>true</SkipDeserializationForBasicTypes>
+  <ServerName />
+  <UICulture>en-US</UICulture>
+  <SaveMetadataHidden>false</SaveMetadataHidden>
+  <ContentTypes />
+  <RemoteClientBitrateLimit>0</RemoteClientBitrateLimit>
+  <EnableFolderView>false</EnableFolderView>
+  <EnableGroupingIntoCollections>false</EnableGroupingIntoCollections>
+  <DisplaySpecialsWithinSeasons>true</DisplaySpecialsWithinSeasons>
+  <CodecsUsed />
+  <PluginRepositories>
+    <RepositoryInfo>
+      <Name>Jellyfin Stable</Name>
+      <Url>https://repo.jellyfin.org/files/plugin/manifest.json</Url>
+      <Enabled>true</Enabled>
+    </RepositoryInfo>
+  </PluginRepositories>
+  <EnableExternalContentInSuggestions>true</EnableExternalContentInSuggestions>
+  <ImageExtractionTimeoutMs>0</ImageExtractionTimeoutMs>
+  <PathSubstitutions />
+  <EnableSlowResponseWarning>true</EnableSlowResponseWarning>
+  <SlowResponseThresholdMs>500</SlowResponseThresholdMs>
+  <CorsHosts>
+    <string>*</string>
+  </CorsHosts>
+  <ActivityLogRetentionDays>30</ActivityLogRetentionDays>
+  <LibraryScanFanoutConcurrency>0</LibraryScanFanoutConcurrency>
+  <LibraryMetadataRefreshConcurrency>0</LibraryMetadataRefreshConcurrency>
+  <RemoveOldPlugins>false</RemoveOldPlugins>
+  <AllowClientLogUpload>true</AllowClientLogUpload>
+  <DummyChapterDuration>0</DummyChapterDuration>
+  <ChapterImageResolution>MatchSource</ChapterImageResolution>
+  <ParallelImageEncodingLimit>0</ParallelImageEncodingLimit>
+  <CastReceiverApplications>
+    <CastReceiverApplication>
+      <Id>F007D354</Id>
+      <Name>Stable</Name>
+    </CastReceiverApplication>
+    <CastReceiverApplication>
+      <Id>6F511C87</Id>
+      <Name>Unstable</Name>
+    </CastReceiverApplication>
+  </CastReceiverApplications>
+  <TrickplayOptions>
+    <EnableHwAcceleration>false</EnableHwAcceleration>
+    <EnableHwEncoding>false</EnableHwEncoding>
+    <ScanBehavior>NonBlocking</ScanBehavior>
+    <ProcessPriority>BelowNormal</ProcessPriority>
+    <Interval>10000</Interval>
+    <WidthResolutions>
+      <int>320</int>
+    </WidthResolutions>
+    <TileWidth>10</TileWidth>
+    <TileHeight>10</TileHeight>
+    <Qscale>4</Qscale>
+    <JpegQuality>90</JpegQuality>
+    <ProcessThreads>1</ProcessThreads>
+  </TrickplayOptions>
+</ServerConfiguration>