diff --git a/Dockerfile b/Dockerfile
index baeb2462..f833539d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,21 +5,6 @@ LABEL repository="https://github.com/jeffreytse/jekyll-deploy-action"
 LABEL homepage="https://github.com/jeffreytse/jekyll-deploy-action"
 LABEL maintainer="Jeffrey Tse <jeffreytse.mail@gmail.com>"
 
-# Update packages database
-RUN pacman -Syu --noconfirm
-
-# Installing git package
-RUN pacman -S --noconfirm git
-
-# Installing ruby libraries
-RUN pacman -S --noconfirm ruby2.7 ruby-bundler
-
-# Setting default ruby version
-RUN cp /usr/bin/ruby-2.7 /usr/bin/ruby
-
-# debug
-RUN ruby -v && bundle version
-
 COPY LICENSE.txt README.md /
 
 COPY script /script
diff --git a/entrypoint.sh b/entrypoint.sh
index 436e7d50..c2145b44 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -40,6 +40,10 @@ if [[ "${PROVIDER}" == "github" ]]; then
   fi
 fi
 
+# Initialize environment
+echo "Initialize environment"
+${SCRIPT_DIR}/script/init_environment.sh
+
 cd ${JEKYLL_SRC}
 
 # Check and execute pre_build_commands commands
diff --git a/script/init_environment.sh b/script/init_environment.sh
new file mode 100755
index 00000000..afa212ce
--- /dev/null
+++ b/script/init_environment.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+# Update packages database
+pacman -Syu --noconfirm
+
+# Installing git package
+pacman -S --noconfirm git
+
+# Installing ruby libraries
+pacman -S --noconfirm ruby2.7 ruby-bundler
+
+# Setting default ruby version
+cp /usr/bin/ruby-2.7 /usr/bin/ruby
+
+# debug
+ruby -v && bundle version