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571 lines
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571 lines
22 KiB
Plaintext
// This is a jsonnet file, it generates kubernetes manifests.
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// To generate and apply, run "jsonnet k8s.jsonnet | kubectl apply -f -"
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// Note that this file is currently not as advanced as its docker-compose variant
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// This file can only be used for replication nodes and editing nodes
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// see config.enabled for more info on what components can be used
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{
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kind: "List",
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apiVersion: "v1",
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config:: {
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// These are the important top-level settings.
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// Change these to configure the services.
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// Image tag (application version) to use.
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// Note: "latest" is not recommended in production, as you can't be sure what version
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// you're actually running, and must manually re-pull to get an updated copy.
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image_tag: "latest",
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// image tag for postgres, which changes less
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// postgres shouldn't be restarted unless absolutely necessary
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database_tag: "bb05e37",
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// For each component, whether to deploy that component.
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enabled: {
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downloader: true,
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restreamer: true,
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backfiller: true,
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cutter: false,
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sheetsync: false,
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thrimshim: true,
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segment_coverage: true,
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playlist_manager: false,
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nginx: true,
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postgres: false,
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},
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// Twitch channels to capture.
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// Channels suffixed with a '!' are considered "important" and will be retried more aggressively
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// and warned about if they're not currently streaming.
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channels: ["desertbus!", "db_chief", "db_high", "db_audio", "db_bus"],
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// Stream qualities to capture
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qualities: ["source", "480p"],
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// NFS settings for RWX (ReadWriteMany) volume for wubloader pods
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nfs_server: "nfs.example.com", # server IP or hostname
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nfs_path: "/mnt/wubloader", # path on server to mount
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nfs_capacity: "2T", # storage capacity to report to k8s
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// PVC template storage class for statefulsets
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sts_storage_class_name: "longhorn",
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// The local port within each container to bind the backdoor server on.
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// You can exec into the container and telnet to this port to get a python shell.
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backdoor_port: 1234,
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// Other nodes to always backfill from. You should not include the local node.
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// If you are using the database to find peers, you should leave this empty.
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peers: [
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],
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// This node's name in the nodes table of the database
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localhost: "node_name",
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// The hostname to use in the Ingress
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ingress_host: "wubloader.example.com",
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// Set to true to let the ingress handle TLS
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ingress_tls: true,
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// Ingress class for ingress
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ingress_class_name: "nginx",
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// Uncomment and give a secretName for ingress, if required for ingress TLS
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//ingress_secret_name: "wubloader-tls",
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// Additional metadata labels for Ingress (cert-manager, etc.) - adjust as needed for your setup
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ingress_labels: {},
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// Connection args for the database.
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// If database is defined in this config, host and port should be wubloader-postgres:5432.
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db_args: {
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user: "vst",
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password: "dbfh2019", // don't use default in production. Must not contain ' or \ as these are not escaped.
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host: "wubloader-postgres",
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port: 5432,
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dbname: "wubloader",
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},
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// Other database arguments
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db_super_user: "postgres", // only accessible from localhost
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db_super_password: "postgres", // Must not contain ' or \ as these are not escaped.
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db_replication_user: "replicate", // if empty, don't allow replication
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db_replication_password: "standby", // don't use default in production. Must not contain ' or \ as these are not escaped.
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db_readonly_user: "vst-ro", // if empty, don't have a readonly account
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db_readonly_password: "volunteer", // don't use default in production. Must not contain ' or \ as these are not escaped.
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db_standby: false, // set to true to have this database replicate another server
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// path to a JSON file containing google credentials for cutter as keys
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// 'client_id', 'client_secret', and 'refresh_token'.
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cutter_creds: import "./google_creds.json",
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// Path to a JSON file containing google credentials for sheetsync as keys
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// 'client_id', 'client_secret' and 'refresh_token'.
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// May be the same as cutter_creds_file.
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sheetsync_creds: import "./google_creds.json",
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// The URL to write to the sheet for edit links, with {} being replaced by the id
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edit_url: "https://wubloader.example.com/thrimbletrimmer?id={}",
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// The spreadsheet ID and worksheet names for sheetsync to act on
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sheet_id: "your_id_here",
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worksheets: ["Tech Test & Preshow"] + ["Day %d" % n for n in std.range(1,7)],
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// Fixed tags to add to all videos
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video_tags: ["DB13", "DB2019", "2019", "Desert Bus", "Desert Bus for Hope", "Child's Play Charity", "Child's Play", "Charity Fundraiser"],
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// A map from youtube playlist IDs to a list of tags.
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// Playlist manager will populate each playlist with all videos which have all those tags.
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// For example, tags ["Day 1", "Technical"] will populate the playlist with all Technical
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// youtube videos from Day 1.
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// Note that you can make an "all videos" playlist by specifying no tags (ie. []).
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playlists: {
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"YOUR-PLAYLIST-ID": ["some tag"],
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},
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// The timestamp corresponding to 00:00 in bustime
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bustime_start: "1970-01-01T00:00:00Z",
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// The timestamps to start/end segment coverage maps at.
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// Generally 1 day before and 7 days after bus start.
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coverage_start: "1969-12-31T00:00:00Z",
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coverage_end: "1970-01-07T00:00:00Z",
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// Max hours ago to backfill, ie. do not backfill for times before this many hours ago.
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// Set to null to disable.
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backfill_max_hours_ago: 24 * 30 * 6, // approx 6 months
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// Extra options to pass via environment variables,
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// eg. log level, disabling stack sampling.
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env: {
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// Uncomment this to set log level to debug
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// WUBLOADER_LOG_LEVEL: "DEBUG",
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// Uncomment this to enable stacksampling performance monitoring
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// WUBLOADER_ENABLE_STACKSAMPLER: "true",
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},
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// Config for cutter upload locations. See cutter docs for full detail.
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cutter_config: {
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desertbus: {type: "youtube"},
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unlisted: {type: "youtube", hidden: true, no_transcode_check: true},
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},
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default_location: "desertbus",
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// The header to put at the front of video titles, eg. a video with a title
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// of "hello world" with title header "foo" becomes: "foo - hello world".
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title_header: "DB2021",
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// The footer to put at the bottom of descriptions, in its own paragraph
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description_footer: "Uploaded by the Desert Bus Video Strike Team",
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},
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// A few derived values.
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// The connection string for the database. Constructed from db_args.
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db_connect:: std.join(" ", [
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"%s='%s'" % [key, $.config.db_args[key]]
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for key in std.objectFields($.config.db_args)
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]),
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// Cleaned up version of $.channels without importance markers
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clean_channels:: [std.split(c, '!')[0] for c in $.config.channels],
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// k8s-formatted version of env dict
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env_list:: [
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{name: key, value: $.config.env[key]}
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for key in std.objectFields($.config.env)
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],
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// Which upload locations have type youtube, needed for playlist_manager
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youtube_upload_locations:: [
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location for location in std.objectFields($.config.cutter_config)
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if $.config.cutter_config[location].type == "youtube"
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],
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// This function generates deployments for each service, since they only differ slightly,
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// with only a different image, CLI args and possibly env vars.
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// The image name is derived from the component name
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// (eg. "downloader" is ghcr.io/ekimekim/wubloader-downloader)
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// so we only pass in name as a required arg.
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// Optional kwargs work just like python.
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deployment(name, args=[], env=[], volumes=[], volumeMounts=[]):: {
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kind: "Deployment",
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apiVersion: "apps/v1",
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metadata: {
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name: "wubloader-%s" % name,
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labels: {app: "wubloader", component: name},
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},
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spec: {
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replicas: 1,
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selector: {
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matchLabels: {app: "wubloader", component: name},
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},
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template: {
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metadata: {
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labels: {app: "wubloader", component: name},
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},
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spec: {
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containers: [
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{
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name: name,
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// segment-coverage is called segment_coverage in the image, so replace - with _
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// ditto for playlist-manager
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image: "ghcr.io/ekimekim/wubloader-%s:%s" % [std.strReplace(name, "-", "_"), $.config.image_tag],
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args: args,
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volumeMounts: [{name: "data", mountPath: "/mnt"}] + volumeMounts,
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env: $.env_list + env, // main env list combined with any deployment-specific ones
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},
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],
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volumes: [
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{
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name: "data",
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persistentVolumeClaim: {"claimName": "mnt-wubloader"},
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},
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] + volumes
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},
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},
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},
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},
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// This function generates a Service object for each service
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service(name):: {
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kind: "Service",
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apiVersion: "v1",
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metadata: {
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name: "wubloader-%s" % name,
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labels: {app: "wubloader", component: name},
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},
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spec: {
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selector: {app: "wubloader", component: name},
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ports: if name == "postgres" then [{name: "postgres", port: 5432, targetPort: 5432},] else [{name: "http", port: 80, targetPort: 80}],
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},
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},
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// This function generates a StatefulSet object (for postgres)
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statefulset(name, args=[], env=[]):: {
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kind: "StatefulSet",
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apiVersion: "apps/v1",
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metadata: {
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name: "wubloader-%s" % name,
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labels: {app: "wubloader", component: name},
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},
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spec: {
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replicas: 1,
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selector: {
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matchLabels: {app: "wubloader", component: name},
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},
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serviceName: "wubloader-%s" % name,
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template: {
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metadata: {
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labels: {app: "wubloader", component: name},
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},
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spec: {
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containers: [
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{
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name: name,
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image: "ghcr.io/ekimekim/wubloader-%s:%s" % [name, $.config.database_tag],
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args: args,
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env: $.env_list + env, // main env list combined with any statefulset-specific ones
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volumeMounts: [
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// tell use a subfolder in the newly provisioned PVC to store postgres DB
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// a newly provisioned ext4 PVC will be non-empty, so postgres fails to start if we don't use a subfolder
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{name: "database", mountPath: "/mnt/database", subPath: "postgres"},
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{name: "segments", mountPath: "/mnt/wubloader"}
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],
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},
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],
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volumes: [
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{
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name: "segments",
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persistentVolumeClaim: {"claimName": "mnt-wubloader"},
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},
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],
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},
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},
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volumeClaimTemplates: [
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{
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metadata: {
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name: "database"
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},
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spec: {
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accessModes: ["ReadWriteOnce"],
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resources: {
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requests: {
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storage: "50GiB"
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},
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},
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storageClassName: $.config.sts_storage_class_name
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},
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},
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],
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},
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},
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// The actual manifests to output, filtering out "null" from disabled components.
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items: [comp for comp in $.components if comp != null],
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// These are all the deployments and services.
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// Note that all components work fine if multiple are running
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// (they may duplicate work, but not cause errors by stepping on each others' toes).
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components:: [
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// The downloader watches the twitch stream and writes the HLS segments to disk
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if $.config.enabled.downloader then $.deployment("downloader", args=$.config.channels + [
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"--base-dir", "/mnt",
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"--qualities", std.join(",", $.config.qualities),
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"--backdoor-port", std.toString($.config.backdoor_port),
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"--metrics-port", "80",
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]),
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// The restreamer is a http server that fields requests for checking what segments exist
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// and allows HLS streaming of segments from any requested timestamp
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if $.config.enabled.restreamer then $.deployment("restreamer", args=[
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"--base-dir", "/mnt",
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"--backdoor-port", std.toString($.config.backdoor_port),
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"--port", "80",
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]),
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// The backfiller periodically compares what segments exist locally to what exists on
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// other nodes. If it finds ones it doesn't have, it downloads them.
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// It can talk to the database to discover other wubloader nodes, or be given a static list.
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if $.config.enabled.backfiller then $.deployment("backfiller", args=$.clean_channels + [
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"--base-dir", "/mnt",
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"--qualities", std.join(",", $.config.qualities),
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"--static-nodes", std.join(",", $.config.peers),
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"--backdoor-port", std.toString($.config.backdoor_port),
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"--node-database", $.db_connect,
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"--localhost", $.config.localhost,
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"--metrics-port", "80",
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] + (if $.config.backfill_max_hours_ago == null then [] else [
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"--start", std.toString($.config.backfill_max_hours_ago),
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])),
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// Segment coverage is a monitoring helper that periodically scans available segments
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// and reports stats. It also creates a "coverage map" image to represent this info.
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// It puts this in the segment directory where nginx will serve it.
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if $.config.enabled.segment_coverage then $.deployment("segment-coverage", args=$.clean_channels + [
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"--base-dir", "/mnt",
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"--qualities", std.join(",", $.config.qualities),
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"--metrics-port", "80",
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"--first-hour", $.config.coverage_start,
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"--last-hour", $.config.coverage_end,
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]),
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// Thrimshim acts as an interface between the thrimbletrimmer editor and the database
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// It is needed for thrimbletrimmer to be able to get unedited videos and submit edits
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if $.config.enabled.thrimshim then $.deployment("thrimshim", args=[
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"--port", "80",
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"--backdoor-port", std.toString($.config.backdoor_port),
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"--title-header", $.config.title_header,
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"--description-footer", $.config.description_footer,
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"--upload-locations", std.join(",", [$.config.default_location] + [
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location for location in std.objectFields($.config.cutter_config)
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if location != $.config.default_location
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]),
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$.db_connect,
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$.clean_channels[0], // use first element as default channel
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$.config.bustime_start,
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]),
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// Cutter interacts with the database to perform cutting jobs
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if $.config.enabled.cutter then $.deployment("cutter",
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args=[
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"--base-dir", "/mnt",
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"--backdoor-port", std.toString($.config.backdoor_port),
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"--metrics-port", "80",
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"--name", $.config.localhost,
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"--tags", std.join(",", $.config.video_tags),
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$.db_connect,
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std.manifestJson($.config.cutter_config),
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"/etc/creds/cutter_creds.json"
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],
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volumes=[
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{name:"wubloader-creds", secret: {secretname: "wubloader-creds"}}
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],
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volumeMounts=[
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{mountPath: "/etc/creds", name: "wubloader-creds"},
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]),
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// Sheetsync syncs database columns to the google docs sheet which is the primary operator interface
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if $.config.enabled.sheetsync then $.deployment("sheetsync",
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args=[
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"--allocate-ids",
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"--backdoor-port", std.toString($.config.backdoor_port),
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"--metrics-port", "80",
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$.config.db_connect,
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"/etc/creds/sheetsync_creds.json",
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$.config.edit_url,
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$.config.bustime_start,
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$.config.sheet_id
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] + $.config.worksheets,
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volumes=[
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{name:"wubloader-creds", secret: {secretname: "wubloader-creds"}}
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],
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volumeMounts=[
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{mountPath: "/etc/creds", name: "wubloader-creds"},
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]),
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// playlist_manager adds videos to youtube playlists depending on tags
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if $.config.enabled.playlist_manager then $.deployment("playlist-manager",
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args=[
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"--backdoor-port", std.toString($.config.backdoor_port),
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"--metrics-port", "80",
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"--upload-location-allowlist", std.join(",", $.youtube_upload_locations),
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$.config.db_connect,
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"/etc/creds/cutter_creds.json"
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] + [
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"%s=%s" % [playlist, std.join(",", $.playlists[playlist])]
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for playlist in std.objectFields($.playlists)
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],
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volumes=[
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{name:"wubloader-creds", secret: {secretname: "wubloader-creds"}}
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],
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volumeMounts=[
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{mountPath: "/etc/creds", name: "wubloader-creds"},
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]),
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// Normally nginx would be responsible for proxying requests to different services,
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// but in k8s we can use Ingress to do that. However nginx is still needed to serve
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// static content - segments as well as thrimbletrimmer.
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if $.config.enabled.nginx then $.deployment("nginx", env=[
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{name: "THRIMBLETRIMMER", value: "true"},
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{name: "SEGMENTS", value: "/mnt"},
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]),
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// postgres statefulset
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if $.config.enabled.postgres then $.statefulset("postgres",
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args=if $.config.db_standby then ["/standby_setup.sh"] else [],
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env=[
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{name: "POSTGRES_USER", value: $.config.db_super_user},
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{name: "POSTGRES_PASSWORD", value: $.config.db_super_password},
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{name: "POSTGRES_DB", value: $.config.db_args.dbname},
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{name: "PGDATA", value: "/mnt/database"},
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{name: "WUBLOADER_USER", value: $.config.db_args.user},
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{name: "WUBLOADER_PASSWORD", value: $.config.db_args.password},
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{name: "REPLICATION_USER", value: $.config.db_replication_user},
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{name: "REPLICATION_PASSWORD", value: $.config.db_replication_password},
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{name: "READONLY_USER", value: $.config.db_readonly_user},
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{name: "READONLY_PASSWORD", value: $.config.db_readonly_password},
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{name: "MASTER_NODE", value: $.config.db_args.host},
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]),
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// Services for all deployments
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if $.config.enabled.downloader then $.service("downloader"),
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if $.config.enabled.backfiller then $.service("backfiller"),
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if $.config.enabled.nginx then $.service("nginx"),
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if $.config.enabled.restreamer then $.service("restreamer"),
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if $.config.enabled.segment_coverage then $.service("segment-coverage"),
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if $.config.enabled.thrimshim then $.service("thrimshim"),
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|
if $.config.enabled.cutter then $.service("cutter"),
|
|
if $.config.enabled.playlist_manager then $.service("playlist-manager"),
|
|
if $.config.enabled.sheetsync then $.service("sheetsync"),
|
|
if $.config.enabled.postgres then $.service("postgres"),
|
|
// Secret for cutter_creds_file and sheetsync_creds_file
|
|
{
|
|
apiVersion: "v1",
|
|
kind: "Secret",
|
|
metadata: {
|
|
name: "wubloader-creds",
|
|
labels: {app: "wubloader"}
|
|
},
|
|
type: "Opaque",
|
|
stringData: {
|
|
"cutter_creds.json": std.toString($.config.cutter_creds),
|
|
"sheetsync_creds.json": std.toString($.config.sheetsync_creds)
|
|
},
|
|
},
|
|
// PV manifest for segments
|
|
{
|
|
apiVersion: "v1",
|
|
kind: "PersistentVolume",
|
|
metadata: {
|
|
name: "mnt-wubloader",
|
|
labels: {app: "wubloader"},
|
|
},
|
|
spec: {
|
|
accessModes: ["ReadWriteMany"],
|
|
capacity: {
|
|
storage: $.config.nfs_capacity
|
|
},
|
|
mountOptions: ["fsc"],
|
|
nfs: {
|
|
server: $.config.nfs_server,
|
|
path: $.config.nfs_path,
|
|
readOnly: false
|
|
},
|
|
persistentVolumeReclaimPolicy: "Retain",
|
|
volumeMode: "Filesystem"
|
|
},
|
|
},
|
|
// PVC manifest for segments
|
|
{
|
|
apiVersion: "v1",
|
|
kind: "PersistentVolumeClaim",
|
|
metadata: {
|
|
name: "mnt-wubloader",
|
|
labels: {app: "wubloader"},
|
|
},
|
|
spec: {
|
|
accessModes: ["ReadWriteMany"],
|
|
resources: {
|
|
requests: {
|
|
storage: $.config.nfs_capacity
|
|
},
|
|
},
|
|
volumeName: "mnt-wubloader"
|
|
},
|
|
},
|
|
// Ingress to direct requests to the correct services.
|
|
{
|
|
kind: "Ingress",
|
|
apiVersion: "networking.k8s.io/v1",
|
|
metadata: {
|
|
name: "wubloader",
|
|
labels: {app: "wubloader"} + $.config.ingress_labels,
|
|
},
|
|
spec: {
|
|
ingressClassName: $.config.ingress_class_name,
|
|
rules: [
|
|
{
|
|
host: $.config.ingress_host,
|
|
http: {
|
|
// Helper functions for defining the path rules below
|
|
local rule(name, path, type) = {
|
|
path: path,
|
|
pathType: type,
|
|
backend: {
|
|
service: {
|
|
name: "wubloader-%s" % std.strReplace(name, "_", "-"),
|
|
port: {
|
|
number: 80
|
|
},
|
|
},
|
|
},
|
|
},
|
|
local metric_rule(name) = rule(name, "/metrics/%s" % name, "Exact"),
|
|
paths: [
|
|
// Map /metrics/NAME to each service
|
|
metric_rule("downloader"),
|
|
metric_rule("backfiller"),
|
|
metric_rule("restreamer"),
|
|
metric_rule("segment_coverage"),
|
|
metric_rule("thrimshim"),
|
|
metric_rule("cutter"),
|
|
metric_rule("sheetsync"),
|
|
metric_rule("playlist_manager"),
|
|
// 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"),
|
|
],
|
|
},
|
|
},
|
|
],
|
|
[if $.config.ingress_tls then 'tls']: [
|
|
{
|
|
hosts: [
|
|
$.config.ingress_host,
|
|
],
|
|
[if "ingress_secret_name" in $.config then 'secretName']: $.config.ingress_secret_name,
|
|
},
|
|
],
|
|
},
|
|
},
|
|
],
|
|
}
|