Add thrimshim to k8s.jsonnet (#185)

* Add thrimshim to k8s jsonnet file

* Fix reference to bustime_start in thrimshim

* Add "enabled" config to selectively disable things

* Fix styling and handling of disabled components

* Don't need to "hide" enabled field

* Add port arg to thrimshim deployment

* fix indent nitpick

Co-authored-by: Mike Lang <ekimekim@users.noreply.github.com>

k8s.jsonnet

@@ -1,8 +1,9 @@
 // This is a jsonnet file, it generates kubernetes manifests.
 // To generate and apply, run "jsonnet k8s.jsonnet | kubectl apply -f -"
 
-// Note this file is only set up to generate manifests for a basic replication node,
-// for the sake of simplicity.
+// Note that this file is currently not as advanced as its docker-compose variant
+// This file can only be used for replication nodes and editing nodes
+// see config.enabled for more info on what components can be used
 
 {
   kind: "List",
@@ -16,6 +17,20 @@
     // you're actually running, and must manually re-pull to get an updated copy.
     image_tag: "latest",
 
+    // For each component, whether to deploy that component.
+    enabled: {
+      downloader: true,
+      restreamer: true,
+      backfiller: true,
+      cutter: false,            // TODO, docker-compose only for now
+      sheetsync: false,         // TODO, docker-compose only for now
+      thrimshim: true,
+      segment_coverage: true,
+      playlist_manager: false,  // TODO, docker-compose only for now
+      nginx: true,
+      postgres: false,          // TODO, docker-compose only for now
+    },
+
     // Twitch channels to capture.
     // Channels suffixed with a '!' are considered "important" and will be retried more aggressively
     // and warned about if they're not currently streaming.
@@ -75,6 +90,20 @@
       // WUBLOADER_DISABLE_STACKSAMPLER: "true",
     },
     
+    // Config for cutter upload locations. See cutter docs for full detail.
+    cutter_config:: {
+      desertbus: {type: "youtube"},
+      unlisted: {type: "youtube", hidden: true, no_transcode_check: true},
+    },
+    default_location:: "desertbus",
+    
+    // The header to put at the front of video titles, eg. a video with a title
+    // of "hello world" with title header "foo" becomes: "foo - hello world".
+    title_header:: "DB2019",
+    
+    // The footer to put at the bottom of descriptions, in its own paragraph
+    description_footer:: "Uploaded by the Desert Bus Video Strike Team",
+
   },
 
   // A few derived values.
@@ -153,12 +182,15 @@
     },
   },
 
-  // The actual manifests.
-  // These are all deployments. Note that all components work fine if multiple are running
+  // The actual manifests to output, filtering out "null" from disabled components.
+  items: [comp for comp in $.components if comp != null],
+  
+  // These are all the deployments and services. 
+  // Note that all components work fine if multiple are running
   // (they may duplicate work, but not cause errors by stepping on each others' toes).
-  items: [
+  components:: [
     // The downloader watches the twitch stream and writes the HLS segments to disk
-    $.deployment("downloader", args=$.config.channels + [
+    if $.config.enabled.downloader then $.deployment("downloader", args=$.config.channels + [
       "--base-dir", "/mnt",
       "--qualities", std.join(",", $.config.qualities),
       "--backdoor-port", std.toString($.config.backdoor_port),
@@ -166,7 +198,7 @@
     ]),
     // The restreamer is a http server that fields requests for checking what segments exist
     // and allows HLS streaming of segments from any requested timestamp
-    $.deployment("restreamer", args=[
+    if $.config.enabled.restreamer then $.deployment("restreamer", args=[
       "--base-dir", "/mnt",
       "--backdoor-port", std.toString($.config.backdoor_port),
       "--port", "80",
@@ -174,7 +206,7 @@
     // The backfiller periodically compares what segments exist locally to what exists on
     // other nodes. If it finds ones it doesn't have, it downloads them.
     // It can talk to the database to discover other wubloader nodes, or be given a static list.
-    $.deployment("backfiller", args=$.clean_channels + [
+    if $.config.enabled.backfiller then $.deployment("backfiller", args=$.clean_channels + [
       "--base-dir", "/mnt",
       "--qualities", std.join(",", $.config.qualities),
       "--static-nodes", std.join(",", $.config.peers),
@@ -186,24 +218,40 @@
     // Segment coverage is a monitoring helper that periodically scans available segments
     // and reports stats. It also creates a "coverage map" image to represent this info.
     // It puts this in the segment directory where nginx will serve it.
-    $.deployment("segment-coverage", args=$.clean_channels + [
+    if $.config.enabled.segment_coverage then $.deployment("segment-coverage", args=$.clean_channels + [
       "--base-dir", "/mnt",
       "--qualities", std.join(",", $.config.qualities),
       "--metrics-port", "80",
     ]),
+    // Thrimshim acts as an interface between the thrimbletrimmer editor and the database
+    // It is needed for thrimbletrimmer to be able to get unedited videos and submit edits
+    if $.config.enabled.thrimshim then $.deployment("thrimshim", args=[
+      "--port", "80",
+      "--backdoor-port", std.toString($.config.backdoor_port),
+      "--title-header", $.config.title_header,
+      "--description-footer", $.config.description_footer,
+      "--upload-locations", std.join(",", [$.config.default_location] + [
+        location for location in std.objectFields($.config.cutter_config)
+        if location != $.config.default_location
+      ]),
+      $.db_connect,
+      $.clean_channels[0],  // use first element as default channel
+      $.config.bustime_start,
+    ]),
     // Normally nginx would be responsible for proxying requests to different services,
     // but in k8s we can use Ingress to do that. However nginx is still needed to serve
     // static content - segments as well as thrimbletrimmer.
-    $.deployment("nginx", env=[
+    if $.config.enabled.nginx then $.deployment("nginx", env=[
       {name: "THRIMBLETRIMMER", value: "true"},
       {name: "SEGMENTS", value: "/mnt"},
     ]),
     // Services for all deployments
-    $.service("downloader"),
-    $.service("backfiller"),
-    $.service("nginx"),
-    $.service("restreamer"),
-    $.service("segment-coverage"),
+    if $.config.enabled.downloader then $.service("downloader"),
+    if $.config.enabled.backfiller then $.service("backfiller"),
+    if $.config.enabled.nginx then $.service("nginx"),
+    if $.config.enabled.restreamer then $.service("restreamer"),
+    if $.config.enabled.segment_coverage then $.service("segment-coverage"),
+    if $.config.enabled.thrimshim then $.service("thrimshim"),
     // Ingress to direct requests to the correct services.
     {
       kind: "Ingress",
@@ -232,9 +280,12 @@
                 metric_rule("downloader"),
                 metric_rule("backfiller"),
                 metric_rule("segment-coverage"),
+                metric_rule("thrimshim"),
                 // Map /segments and /thrimbletrimmer to the static content nginx
                 rule("nginx", "/segments", "Prefix"),
                 rule("nginx", "/thrimbletrimmer", "Prefix"),
+                // Map /thrimshim to the thrimshim service
+                rule("thrimshim", "/thrimshim", "Prefix"),
                 // Map everything else to restreamer
                 rule("restreamer", "/", "Prefix"),
               ],