fix(Dockerfile): fix workdir definition

Dockerfile

@@ -20,14 +20,14 @@ FROM alpine
 WORKDIR /app
 
 # Copy built binary from build image
-COPY --from=build /workspace/grafana-backuper .
+COPY --from=build /workspace/grafana-backuper /app
 
-RUN chmod +x grafana-backuper
+RUN chmod +x /app/grafana-backuper
 
 # Copy the wrapper script
-COPY entrypoint.sh .
+COPY entrypoint.sh /app
 
 # Ensure the script is executable
-RUN chmod +x entrypoint.sh
+RUN chmod +x /app/entrypoint.sh
 
-ENTRYPOINT ["./entrypoint.sh"]
+ENTRYPOINT ["/app/entrypoint.sh"]

entrypoint.sh

@@ -2,7 +2,7 @@
 
 # Check if the environment variable GRAFANA_MODE is set
 if [ -z "$GB_SEQUENCE" ]; then
-    exec ./grafana-backuper backup --json
+    exec /app/grafana-backuper backup --json
 else
-    exec ./grafana-backuper --json
+    exec /app/grafana-backuper --json
 fi