diff --git a/ThesTeX/content/3-solution.tex b/ThesTeX/content/3-solution.tex
index 8d18651..d2c4765 100644
--- a/ThesTeX/content/3-solution.tex
+++ b/ThesTeX/content/3-solution.tex
@@ -56,3 +56,4 @@ Game independance:
 	\item allow load distribution
 \end{itemize}
 \image{\textwidth}{map-reduce.pdf}{Data flows}{img:flow}
+\image{\textwidth}{architecture.pdf}{archoitecure overview}{img:arch}
diff --git a/ThesTeX/images/architecture.dot b/ThesTeX/images/architecture.dot
new file mode 100644
index 0000000..98b394a
--- /dev/null
+++ b/ThesTeX/images/architecture.dot
@@ -0,0 +1,26 @@
+graph{
+//rankdir="LR";
+{
+	rank=same;
+s [label="Web-App\nFlask"];
+c [label="Worker\nCelery"];
+}
+db [label="DB\nRedis"];
+t [label="HTTP frontend\nTraefik"];
+n [label="Static file server\nNginx"];
+/*{
+	rank=same;
+	b [label="Biogames"];
+	g [label="Geogames server"];
+};*/
+
+s -- db [label="Internal network"];
+c -- db [];
+t -- s [label=" External network,\nlabel"];
+t -- n [];
+c -- n [label="Shared volume               "];
+/*s -- b [style="dotted"];
+c -- b [style="dotted"];
+s -- g [style="dotted"];
+c -- g [style="dotted"];*/
+}
\ No newline at end of file