diff --git a/environment/Dockerfile b/environment/Dockerfile
index 3d8b98a..1f96d16 100644
--- a/environment/Dockerfile
+++ b/environment/Dockerfile
@@ -52,6 +52,18 @@ RUN echo $SECRETS1_TO_ENV
 
 # let's see if bind env SECRET1_TO_ENV and run in one RUN command, can it be access?
 RUN npm run print-var
+#  [script Print in Dockerfile]:
+#  VAR_IN_REPO : undefined
+#  SECRET_IN_REPO : undefined
+#  VAR_IN_JOB1 : undefined
+#  VAR_IN_STEP1 : undefined
+#  VAR_IN_RUN : undefined
+#  BUILD_ARG1 : <arg1 in build-args>
+#  SECRETS1 : undefined
+#  SECRET_ENV_1 : undefined
+#  VAR_IN_DOCKERFILE : <var in dockerfile>
+
+
 RUN --mount=type=secret,id=SECRET_ENV_1,env=SECRET_ENV_1 \
         npm run print-var
 # the answer is: yes
diff --git a/environment/printVarsByDockerfile.js b/environment/printVarsByDockerfile.js
index 6ccfa35..4c499b3 100644
--- a/environment/printVarsByDockerfile.js
+++ b/environment/printVarsByDockerfile.js
@@ -3,7 +3,3 @@ console.log('[script Print in Dockerfile]:')
 envKeys.forEach(key=>{
     console.log(key,":",process.env[key])
 })
-/*
-result:
-
-*/
\ No newline at end of file