Workaround to mount docker.sock (SeleniumHQ#1505) [deploy]

* Workaround to mount docker.sock

* Updating docs to mount docker.sock

Author: diemol

Makefile

@@ -121,7 +121,7 @@ docker: base generate_docker
 generate_standalone_docker:
 	cd ./StandaloneDocker && ./generate.sh $(TAG_VERSION) $(NAMESPACE) $(AUTHORS)
 
-standalone_docker: base generate_standalone_docker
+standalone_docker: docker generate_standalone_docker
 	cd ./StandaloneDocker && docker build $(BUILD_ARGS) -t $(NAME)/standalone-docker:$(TAG_VERSION) .
 
 generate_standalone_firefox:

NodeDocker/Dockerfile.txt

@@ -1,3 +1,12 @@
+USER root
+
+#==============
+# Socat to proxy docker.sock when mounted
+#==============
+RUN apt-get update -qqy \
+  && apt-get -qqy install socat \
+  && rm -rf /var/lib/apt/lists/* /var/cache/apt/*
+
 USER 1200
 
 #========================
@@ -6,9 +15,10 @@ USER 1200
 
 EXPOSE 4444
 
-COPY start-selenium-grid-node-docker.sh \
+COPY start-selenium-grid-docker.sh \
     config.toml \
+    start-socat.sh \
     /opt/bin/
 
-COPY selenium-grid-node-docker.conf /etc/supervisor/conf.d/
+COPY selenium-grid-docker.conf /etc/supervisor/conf.d/
 

NodeDocker/config.toml

@@ -12,7 +12,7 @@ configs = [
 # Linux could use --net=host in the `docker run` instruction or 172.17.0.1 in the URI below.
 # To have Docker listening through tcp on macOS, install socat and run the following command
 # socat -4 TCP-LISTEN:2375,fork UNIX-CONNECT:/var/run/docker.sock
-url = "http://host.docker.internal:2375"
+url = "http://127.0.0.1:2375"
 # Docker image used for video recording
 video-image = "selenium/video:ffmpeg-4.3.1-20220131"
 

NodeDocker/selenium-grid-node-docker.conf renamed to NodeDocker/selenium-grid-docker.conf

@@ -1,9 +1,18 @@
 ; Documentation of this file format -> http://supervisord.org/configuration.html
 
-[program:selenium-grid-node-docker]
+; Priority 0 - socat 5 - selenium-docker
 
+[program:socat]
 priority=0
-command=/opt/bin/start-selenium-grid-node-docker.sh
+command=/opt/bin/start-socat.sh
+autostart=true
+autorestart=false
+startsecs=0
+startretries=0
+
+[program:selenium-grid-docker]
+priority=5
+command=/opt/bin/start-selenium-grid-docker.sh
 autostart=true
 autorestart=false
 startsecs=0

NodeDocker/start-selenium-grid-node-docker.sh renamed to NodeDocker/start-selenium-grid-docker.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+# set -e: exit asap if a command exits with a non-zero status
+set -e
+
+
+if stat /var/run/docker.sock; then
+  echo "Starting socat, docker.sock found."
+  sudo socat TCP-L:2375,bind=127.0.0.1,fork,reuseaddr UNIX:/var/run/docker.sock
+else
+  echo "docker.sock not found."
+fi