- Corrections for setting up the test environment

- Correction of some bugs discovered

docker/grafana/Dockerfile

@@ -0,0 +1,13 @@
+FROM grafana/grafana:latest
+
+# Copy dashboard and datasource provisioning configurations
+COPY provisioning/dashboards /etc/grafana/provisioning/dashboards
+COPY provisioning/datasources /etc/grafana/provisioning/datasources
+
+# Set environment variables
+ENV GF_SECURITY_ADMIN_USER=admin
+ENV GF_SECURITY_ADMIN_PASSWORD=admin
+ENV GF_USERS_ALLOW_SIGN_UP=false
+
+# Expose the Grafana web interface
+EXPOSE 3000