Reduce Docker image size

Author: xarantolus

Dockerfile

@@ -1,26 +1,19 @@
-FROM golang:1.18 as builder
-
-# Build the normal executable
-RUN mkdir /build
-COPY . /build
-WORKDIR /build
-RUN CGO_ENABLED=0 go build -a -v -mod vendor -ldflags "-s -w" -o sensibleHub .
-
-
-# Now for the image we actually run the server in
-FROM python:3-alpine
-
-# Install ffmpeg
-RUN apk add ca-certificates ffmpeg
-ENV PATH="/bin:${PATH}"
-
-RUN apk add --no-cache --virtual .pynacl_deps build-base python3-dev libffi-dev
-
-# Install youtube-dl
-RUN pip install yt-dlp
-
-RUN apk del .pynacl_deps
-
-# Copy main executable
-COPY --from=builder /build/sensibleHub .
-ENTRYPOINT [ "./sensibleHub", "-config", "/config/config.json" ]
+FROM golang:1.18 as builder
+
+# Build the normal executable
+RUN mkdir /build
+COPY . /build
+WORKDIR /build
+RUN CGO_ENABLED=0 go build -a -v -mod vendor -ldflags "-s -w" -o sensibleHub .
+
+
+# Now for the image we actually run the server in
+FROM alpine:latest
+RUN apk add ca-certificates ffmpeg python3
+# Copy main executable
+COPY --from=builder /build/sensibleHub .
+# Download yt-dlp
+RUN wget -qO /bin/yt-dlp https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp && chmod +x /bin/yt-dlp
+ENV PATH="/bin:${PATH}"
+ENV RUNNING_IN_DOCKER=true
+ENTRYPOINT [ "./sensibleHub", "-config", "/config/config.json" ]

README.md

@@ -61,6 +61,8 @@ If you prefer using Docker, you can run the following in a directory that contai
 
     docker run -v"$(pwd):/config" -v"$(pwd)/data:/data" -p 128:128 -p 1280:1280 ghcr.io/xarantolus/sensiblehub:master
 
+The volume mounted at `/config` must contain a `config.json` file. To change the exposed ports, you can modify the first port (before the `:`) in the command to another port.
+
 <details>
 <summary>If no recent build is available, you can also build for yourself.</summary>
 

store/config/config.go

@@ -1,6 +1,7 @@
 package config
 
 import (
+	"log"
 	"os"
 	"strings"
 
@@ -53,18 +54,26 @@ func Parse(path string) (c Config, err error) {
 		return
 	}
 
-	// Set default paths/names if none are set
-	c.Alternatives.FFmpeg = strings.TrimSpace(c.Alternatives.FFmpeg)
-	if c.Alternatives.FFmpeg == "" {
+	rid, ok := os.LookupEnv("RUNNING_IN_DOCKER")
+	if ok && strings.ToLower(rid) == "true" {
 		c.Alternatives.FFmpeg = "ffmpeg"
-	}
-	c.Alternatives.FFprobe = strings.TrimSpace(c.Alternatives.FFprobe)
-	if c.Alternatives.FFprobe == "" {
 		c.Alternatives.FFprobe = "ffprobe"
-	}
-	c.Alternatives.YoutubeDL = strings.TrimSpace(c.Alternatives.YoutubeDL)
-	if c.Alternatives.YoutubeDL == "" {
-		c.Alternatives.YoutubeDL = "youtube-dl"
+		c.Alternatives.YoutubeDL = "yt-dlp"
+		log.Println("[Info] Running in Docker, using local binaries. This means that the \"alternatives\" config part is ignored!")
+	} else {
+		// Set default paths/names if none are set
+		c.Alternatives.FFmpeg = strings.TrimSpace(c.Alternatives.FFmpeg)
+		if c.Alternatives.FFmpeg == "" {
+			c.Alternatives.FFmpeg = "ffmpeg"
+		}
+		c.Alternatives.FFprobe = strings.TrimSpace(c.Alternatives.FFprobe)
+		if c.Alternatives.FFprobe == "" {
+			c.Alternatives.FFprobe = "ffprobe"
+		}
+		c.Alternatives.YoutubeDL = strings.TrimSpace(c.Alternatives.YoutubeDL)
+		if c.Alternatives.YoutubeDL == "" {
+			c.Alternatives.YoutubeDL = "youtube-dl"
+		}
 	}
 
 	return