fix docker deploy image

Author: Phil Varner

.dockerignore

@@ -0,0 +1,2 @@
+elasticsearch/snapshots/
+.venv

Dockerfile.deploy

@@ -2,6 +2,7 @@ FROM python:3.10-slim
 
 RUN apt-get update && \
     apt-get -y upgrade && \
+    apt-get -y install gcc && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/*