updating syntax

Dockerfile

@@ -7,7 +7,7 @@ ENV appname=wts
 
 WORKDIR /${appname}
 
-RUN chown -R gen3:gen3 /$appname
+RUN chown -R gen3:gen3 /${appname}
 
 # Builder stage
 FROM base AS builder
@@ -18,19 +18,19 @@ COPY poetry.lock pyproject.toml /${appname}/
 
 RUN poetry install -vv --without dev --no-interaction
 
-COPY --chown=gen3:gen3 . /$appname
-COPY --chown=gen3:gen3 ./deployment/wsgi/wsgi.py /$appname/wsgi.py
+COPY --chown=gen3:gen3 . /${appname}
+COPY --chown=gen3:gen3 ./deployment/wsgi/wsgi.py /${appname}/wsgi.py
 
 # Run poetry again so this app itself gets installed too
 RUN poetry install --without dev --no-interaction
 
-RUN git config --global --add safe.directory /${appname} && COMMIT=`git rev-parse HEAD` && echo "COMMIT=\"${COMMIT}\"" > /$appname/version_data.py \
-    && VERSION=`git describe --always --tags` && echo "VERSION=\"${VERSION}\"" >> /$appname/version_data.py
+RUN git config --global --add safe.directory /${appname} && COMMIT=`git rev-parse HEAD` && echo "COMMIT=\"${COMMIT}\"" > /${appname}/version_data.py \
+    && VERSION=`git describe --always --tags` && echo "VERSION=\"${VERSION}\"" >> /${appname}/version_data.py
 
 # Final stage
 FROM base
 
-COPY --from=builder /$appname /$appname
+COPY --from=builder /${appname} /${appname}
 
 # Switch to non-root user 'gen3' for the serving process
 USER gen3