add: support for docker-compose

Copy the .env.example into a .env file, update with your variable run `docker-compose up`

https://github.com/horgh/videostreamer/issues/22

.env.example

@@ -0,0 +1,6 @@
+HOST=0.0.0.0
+PORT=8080
+FORMAT=rtsp
+FCGI=false
+SOURCE_RTSP=rtsp://rtsp.stream/pattern
+VERBOSE=true

.gitignore

@@ -1,3 +1,5 @@
+.idea
+.env
 *.swp
 cmd/remux_example/remux_example
 videostreamer

docker-compose.yaml

@@ -0,0 +1,30 @@
+version: "2.3"
+
+services:
+  rtsp2mp4:
+    container_name: videostreamer
+    image: popszer/rtsp2mp4:v0.0.1
+    build: .
+    env_file:
+      - .env
+    environment:
+      - HOST=${HOST}
+      - PORT=${PORT}
+      - FCGI=${FCGI}
+      - VERBOSE=${VERBOSE}
+      - FORMAT=${FORMAT}
+      - SOURCE_RTSP=${SOURCE_RTSP}
+    ports:
+      - "${PORT}:${PORT}"
+    command:
+      - /bin/bash
+      - -c
+      - |
+        /videostreamer -host ${HOST} \
+                       -port ${PORT} \
+                       -input ${SOURCE_RTSP} \
+                       -verbose ${VERBOSE} \
+                       -fcgi ${FCGI} \
+                       -format ${FORMAT}
+        
+        

videostreamer.go

@@ -108,10 +108,10 @@ func main() {
 func getArgs() (Args, error) {
 	listenHost := flag.String("host", "0.0.0.0", "Host to listen on.")
 	listenPort := flag.Int("port", 8080, "Port to listen on.")
-	format := flag.String("format", "pulse", "Input format. Example: rtsp for RTSP.")
-	input := flag.String("input", "", "Input URL valid for the given format. For RTSP you can provide a rtsp:// URL.")
+	format := flag.String("format", "rtsp", "Input format. Example: rtsp for RTSP.")
+	input := flag.String("input", "rtsp://rtsp.stream/pattern", "Input URL valid for the given format. For RTSP you can provide a rtsp:// URL.")
 	verbose := flag.Bool("verbose", false, "Enable verbose logging output.")
-	fcgi := flag.Bool("fcgi", true, "Serve using FastCGI (true) or as a regular HTTP server.")
+	fcgiVar := flag.Bool("fcgi", false, "Serve using FastCGI (true) or as a regular HTTP server.")
 
 	flag.Parse()
 
@@ -136,7 +136,7 @@ func getArgs() (Args, error) {
 		InputFormat: *format,
 		InputURL:    *input,
 		Verbose:     *verbose,
-		FCGI:        *fcgi,
+		FCGI:        *fcgiVar,
 	}, nil
 }