Adding docker machinery

Dockerfile

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+FROM python
+
+ARG uid=1000
+ARG gid=1000
+
+ENV TECHREC_CONFIG=/src/techrec/docker/config.py
+ENV DEBIAN_FRONTEND=noninteractive
+
+WORKDIR /src
+COPY . /src/techrec
+
+RUN groupadd -g ${gid} techrec \
+    && useradd -g techrec -u ${uid} -m techrec \
+    && mkdir -p /src/techrec \
+    && chown -R techrec:techrec /src \
+    && apt-get update \
+    && apt-get install -y ffmpeg \
+ && rm -rf /var/lib/apt/lists/*
+
+USER techrec
+
+
+RUN python -m venv ./venv \
+    && ./venv/bin/python -m pip install wheel \
+ && ./venv/bin/python -m pip install -e ./techrec
+
+ENTRYPOINT ["/src/venv/bin/techrec"]
+CMD ["-vv", "serve"]

docker-compose.yaml

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+version: "3"
+
+services:
+  liquidsoap:
+    build:
+      context: .
+      dockerfile: docker/Dockerfile.liquidsoap
+    volumes:
+      - ./docker/run.liq:/run.liq
+      - ./docker/ror.sh:/ror.sh
+      - rec:/rec
+    devices:
+      - /dev/snd:/dev/snd
+    entrypoint: /run.liq
+    depends_on:
+      - storageprepare
+
+  storage:
+    image: nginx
+    volumes:
+      - rec:/var/www/rec
+      - ./docker/storage.conf:/etc/nginx/conf.d/default.conf:ro
+    ports:
+      - 18080:80
+    depends_on:
+      - storageprepare
+
+  storageprepare:
+    image: bash
+    volumes:
+      - rec:/rec
+    command: chmod 777 /rec
+
+  techrec:
+    build: .
+    volumes:
+      - .:/src/techrec
+      - ./docker/output:/src/output
+    ports:
+      - 8000:8000
+    depends_on:
+      - liquidsoap
+      - storage
+
+volumes:
+  rec:

docker/Dockerfile.liquidsoap

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+FROM savonet/liquidsoap:main
+
+ENV audiogid=995
+
+USER root
+
+RUN groupadd -g ${audiogid} hostaudio \
+ && usermod -a -G hostaudio liquidsoap
+
+USER liquidsoap

docker/config.py

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+AUDIO_INPUT = "http://storage/ror"
+AUDIO_OUTPUT = "/src/output"
+HOST = "0.0.0.0"
+PORT = 8000

docker/run.liq

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+#!/usr/bin/liquidsoap
+
+settings.log.stdout.set(true);
+settings.log.file.set(false);
+settings.log.level.set(3);
+
+# settings.server.telnet.set(true);
+# settings.server.telnet.bind_addr.set("127.0.0.1");
+# settings.server.telnet.port.set(6666);
+
+rorinput = input.alsa(device="default", bufferize=true);
+#rorinput = input.pulseaudio( );
+
+# rorinput = insert_metadata(id="trx",rorinput);
+rorinput = rewrite_metadata([("artist","Radio OndaRossa")],rorinput);
+
+# ESCPOST
+output.file(
+  id="rorrec",
+  reopen_when={0m},
+  #%mp3(bitrate=80, samplerate=44100, stereo=true,stereo_mode="joint_stereo"),
+  #"/rec/ror/%Y-%m/%d/rec-%Y-%m-%d-%H-%M-%S-ror.mp3",
+  %vorbis(quality=0.3, samplerate=44100, channels=2),
+  "/rec/ror/%Y-%m/%d/rec-%Y-%m-%d-%H-%M-%S-ror.ogg",
+  rorinput
+);

docker/storage.conf

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+server {
+    listen 80 default_server;
+    server_name storage;
+
+    location / {
+        root /var/www/rec;
+        autoindex on;
+    }
+}