feat: add basic liquidsoap image config

Dockerfile

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+FROM savonet/liquidsoap-alpine:v2.1.4
+
+USER root
+
+RUN apk add tzdata
+RUN cp /usr/share/zoneinfo/Europe/Moscow /etc/localtime
+RUN echo "Europe/Moscow" >  /etc/timezone
+
+RUN mkdir -p /home/stream
+RUN mkdir -p /home/stream/music
+RUN chown -R liquidsoap:liquidsoap /home/stream
+
+USER liquidsoap
+COPY main.liq /home/stream/script.liq
+
+CMD ["/home/stream/script.liq"]

Makefile

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+STORAGE_URL = gitea.bjornmossa.net
+IMAGE_NAME = $(STORAGE_URL)/radioiceberg/liquidsoap
+GIT_TAG = $(shell git describe --abbrev=0 --tags)
+
+login:
+	docker login $(STORAGE_URL)
+
+build:
+	docker build . -t $(IMAGE_NAME):$(GIT_TAG)
+
+bump-latest:
+	docker tag $(IMAGE_NAME):$(GIT_TAG) $(IMAGE_NAME):latest
+
+push-current: login
+	docker push $(IMAGE_NAME):$(GIT_TAG)
+
+push-latest: login
+	docker push $(IMAGE_NAME):latest

main.liq

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+#!/usr/bin/liquidsoap
+
+settings.harbor.bind_addrs.set(["0.0.0.0"])
+enable_replaygain_metadata()
+
+def print_meta(data)
+  artist = data["artist"]
+  title = data["title"]
+
+  meta = json()
+  meta.add("artist", artist)
+  meta.add("title", title)
+
+  http.post(data=meta.stringify(), headers=[("Content-Type", "application/json; charset=UTF-8")], "metadata:4000")
+  ()
+end
+
+security = synth.all.sine(id="sine")
+main_air_playlist = playlist("/music/main_air.pls")
+general_playlist = replaygain(random([main_air_playlist]))
+general_stream = normalize(crossfade(general_playlist))
+live_stream = input.harbor("iceberg-live", port=6000, user="djiceberg", password="hackme")
+  
+radio = fallback(track_sensitive = false, [live_stream, general_stream, security])
+
+radio.on_metadata(print_meta)
+
+output.icecast(%mp3,
+  host = "icecast",
+  port = 8000,
+  password = "hackme",
+  mount = "iceberg.ogg",
+  radio)