Add Linux Alpine Docker image (#1226)

doc/Building.md

@@ -154,8 +154,7 @@ Rewrites mediasoup-worker C++ files using [clang-format](https://clang.llvm.org/
 
 Builds and runs the `mediasoup-worker-test` binary at `worker/out/Release/` (or at `worker/out/Debug/` if the "MEDIASOUP_BUILDTYPE" environment variable is set to "Debug"), which uses [Catch2](https://github.com/catchorg/Catch2) to run test units located at `worker/test/` folder.
 
-
-### 'make test-asan'
+### `make test-asan`
 
 Run test with Address Sanitizer.
 
@@ -189,7 +188,7 @@ Runs all fuzzer cases.
 
 ### `make docker`
 
-Builds a Linux image with fuzzer capable clang++.
+Builds a Linux Ubuntu Docker image with fuzzer capable clang++ and all dependencies to run mediasoup.
 
 **NOTE:** Before running this command, a specific version of Linux clang must be downloaded. To get it, run:
 
@@ -200,4 +199,16 @@ cd worker
 
 ### `make docker-run`
 
-Runs a container of the Docker image created with `make docker`. It automatically executes a `bash` session in the `/mediasoup` directory, which is a Docker volume that points to the real `mediasoup` directory.
+Runs a container of the Ubuntu Docker image created with `make docker`. It automatically executes a `bash` session in the `/mediasoup` directory, which is a Docker volume that points to the real `mediasoup` directory.
+
+**NOTE:** To install and run mediasoup in the container, previous installation (if any) must be properly cleaned by entering the `worker` directory and running `make clean-all`.
+
+### `make docker-alpine`
+
+Builds a Linux Alpine Docker image with all dependencies to run mediasoup.
+
+### `make docker-alpine-run`
+
+Runs a container of the Alpine Docker image created with `make docker-alpine`. It automatically executes an `ash` session in the `/mediasoup` directory, which is a Docker volume that points to the real `mediasoup` directory.
+
+**NOTE:** To install and run mediasoup in the container, previous installation (if any) must be properly cleaned by entering the `worker` directory and running `make clean-all`.

worker/Dockerfile

@@ -5,24 +5,24 @@ RUN \
 	set -x \
 	&& apt-get update \
 	&& apt-get install --yes \
-	   bash-completion wget curl subversion screen gcc g++ cmake ninja-build golang \
-	   autoconf libtool apache2 python3-pip python3-dev pkg-config zlib1g-dev \
-	   libgss-dev libssl-dev libxml2-dev nasm libarchive-dev make automake \
-	   libdbus-1-dev libboost-dev autoconf-archive bash-completion python3-yaml \
-	   clang
+		bash-completion wget curl subversion screen gcc g++ cmake ninja-build golang \
+		autoconf libtool apache2 python3-pip python3-dev pkg-config zlib1g-dev \
+		libgss-dev libssl-dev libxml2-dev nasm libarchive-dev make automake \
+		libdbus-1-dev libboost-dev autoconf-archive bash-completion python3-yaml \
+		clang
 
 # Install node 20.
- RUN set -x \
-	 && apt-get update \
-	 && apt-get install --yes ca-certificates curl gnupg \
-	 && mkdir -p /etc/apt/keyrings \
-	 && curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key \
-	 | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg \
-	 && NODE_MAJOR=20 \
-	 && echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" \
-	 > /etc/apt/sources.list.d/nodesource.list \
-	 && apt-get update \
-	 && apt-get install nodejs --yes
+RUN set -x \
+	&& apt-get update \
+	&& apt-get install --yes ca-certificates curl gnupg \
+	&& mkdir -p /etc/apt/keyrings \
+	&& curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key \
+	| gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg \
+	&& NODE_MAJOR=20 \
+	&& echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" \
+	> /etc/apt/sources.list.d/nodesource.list \
+	&& apt-get update \
+	&& apt-get install nodejs --yes
 
 # Make CC and CXX point to clang/clang++ installed above.
 ENV LANG="C.UTF-8"

worker/Dockerfile.alpine

@@ -0,0 +1,17 @@
+FROM alpine
+
+# Install dependencies.
+RUN \
+	set -x \
+	&& apk add \
+		nodejs-current npm python3 py3-pip \
+		make gcc g++
+
+# Make CC and CXX point to gcc/g++.
+ENV LANG="C.UTF-8"
+ENV CC="gcc"
+ENV CXX="g++"
+
+WORKDIR /mediasoup
+
+CMD ["ash"]

worker/Makefile

@@ -87,7 +87,9 @@ endif
 	fuzzer \
 	fuzzer-run-all \
 	docker \
-	docker-run
+	docker-run \
+	docker-alpine \
+	docker-alpine-run
 
 default: mediasoup-worker
 
@@ -266,3 +268,18 @@ docker-run:
 		--cap-add SYS_PTRACE \
 		-v $(shell pwd)/../:/mediasoup \
 		mediasoup/docker:latest
+
+docker-alpine:
+ifeq ($(DOCKER_NO_CACHE),true)
+	$(DOCKER) build -f Dockerfile.alpine --no-cache --tag mediasoup/docker-alpine:latest .
+else
+	$(DOCKER) build -f Dockerfile.alpine --tag mediasoup/docker-alpine:latest .
+endif
+
+docker-alpine-run:
+	$(DOCKER) run \
+		--name=mediasoupDockerAlpine -it --rm \
+		--privileged \
+		--cap-add SYS_PTRACE \
+		-v $(shell pwd)/../:/mediasoup \
+		mediasoup/docker-alpine:latest