diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..608eefa
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,18 @@
+FROM debian:12 AS guinnessd-base
+RUN apt-get update && \
+    apt-get upgrade -y && \
+    apt-get install -y make gcc && \
+    useradd -m -d /home/guinness -s /bin/false -r guinness
+
+FROM guinnessd-base
+COPY . /home/guinness
+WORKDIR /home/guinness
+RUN make && \
+    mv /home/guinness/guinnessd /usr/local/bin && \
+    chmod +x /usr/local/bin/guinnessd && \
+    rm -Rf  /home/guinness/* && \
+    apt-get remove -y make gcc && \
+    apt-get autoremove -y
+    
+
+
diff --git a/Makefile b/Makefile
index c023697..80e18df 100644
--- a/Makefile
+++ b/Makefile
@@ -11,7 +11,7 @@ all:	guinness guinnessd
 H_DEP =	broadcast.h commands.h defines.h guinnessd.h printlog.h 	\
 	xmem.h clients.h config.h drinks.h lists.h tools.h
 
-COPT =	-Wall -g
+COPT =	-fPIE -Wno-error -g
 
 D_OBJS = xmem.o broadcast.o printlog.o lists.o tools.o drinks.o		\
 	commands.o clients.o
diff --git a/Makefile.docker b/Makefile.docker
new file mode 100644
index 0000000..71732f3
--- /dev/null
+++ b/Makefile.docker
@@ -0,0 +1,4 @@
+.PHONY: build
+
+build:
+	docker build -t guinnessd:latest .
diff --git a/broadcast.c b/broadcast.c
index f9438bd..ba59048 100644
--- a/broadcast.c
+++ b/broadcast.c
@@ -26,6 +26,7 @@
 #include "broadcast.h"
 #include "drinks.h"
 
+pthread_mutex_t mutex_broadcast;
 
 extern Elt  *clients_list;
 extern FILE *outerr;
diff --git a/guinnessd.c b/guinnessd.c
index 9e46505..01a6df1 100644
--- a/guinnessd.c
+++ b/guinnessd.c
@@ -32,6 +32,8 @@
 #include "commands.h"
 #include "config.h"
 
+pthread_mutex_t mutex_clients;
+
 /* Config specifique  serveur */
 char *adr_ip       = NULL;
 int   port         = 0;
diff --git a/guinnessd.h b/guinnessd.h
index 2e16126..841b9b3 100644
--- a/guinnessd.h
+++ b/guinnessd.h
@@ -30,8 +30,8 @@ typedef struct userinfos {
 } userinfos;
 
 
-pthread_mutex_t mutex_broadcast;
-pthread_mutex_t mutex_clients;
+extern pthread_mutex_t mutex_broadcast;
+extern pthread_mutex_t mutex_clients;
 
 
 #endif