diff --git a/.env.example b/.env.example
index 3560f90e..54add52a 100644
--- a/.env.example
+++ b/.env.example
@@ -1,7 +1,6 @@
 # Used to verify the integrity of signed cookies. so ensure a secure value is set
 SECRET_KEY_BASE=replace_with_lengthy_secure_hex
 
-PORT=80
 REDIS_URL=redis://localhost:6379
 
 # CI/CD
diff --git a/.template/addons/docker/.env.tt b/.template/addons/docker/.env.tt
deleted file mode 100644
index 7be3e1c5..00000000
--- a/.template/addons/docker/.env.tt
+++ /dev/null
@@ -1,6 +0,0 @@
-DOCKER_REGISTRY_HOST=<%= DOCKER_REGISTRY_HOST %>
-DOCKER_IMAGE=<%= DOCKER_IMAGE %>
-BRANCH_TAG=latest
-PORT=80
-CI=false
-TEST_RETRY=0
diff --git a/.template/addons/docker/template.rb b/.template/addons/docker/template.rb
index 18b65679..ca46b687 100644
--- a/.template/addons/docker/template.rb
+++ b/.template/addons/docker/template.rb
@@ -6,5 +6,15 @@
 template 'docker-compose.dev.yml.tt'
 template 'docker-compose.test.yml.tt'
 template 'docker-compose.yml.tt'
-template '.env.tt'
 template '.dockerignore.tt'
+
+append_to_file '.env.example' do
+  <<~ENVEXAMPLE
+
+    # Docker
+    DOCKER_REGISTRY_HOST=#{DOCKER_REGISTRY_HOST}
+    DOCKER_IMAGE=#{DOCKER_IMAGE}
+    BRANCH_TAG=latest
+    PORT=80
+  ENVEXAMPLE
+end
diff --git a/.template/hooks/before_complete/copy_env_example.rb b/.template/hooks/before_complete/copy_env_example.rb
new file mode 100644
index 00000000..8bfcee75
--- /dev/null
+++ b/.template/hooks/before_complete/copy_env_example.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+def copy_env_example
+  use_source_path __dir__
+
+  run 'cp .env.example .env'
+end
+
+copy_env_example
diff --git a/.template/spec/base/template_spec.rb b/.template/spec/base/template_spec.rb
index 05816e90..52d03f75 100644
--- a/.template/spec/base/template_spec.rb
+++ b/.template/spec/base/template_spec.rb
@@ -35,7 +35,7 @@
     expect(file('.env.example')).to exist
   end
 
-  it 'does NOT creates .env file' do
-    expect(file('.env')).not_to exist
+  it 'creates .env file' do
+    expect(file('.env')).to exist
   end
 end
diff --git a/template.rb b/template.rb
index 47a0fd2a..5841e41a 100644
--- a/template.rb
+++ b/template.rb
@@ -80,6 +80,9 @@ def apply_template!(template_root)
   apply '.template/variants/web/template.rb' if WEB_VARIANT
 
   # A list necessary jobs that run before complete, ex: Fixing rubocop on Ruby files that generated by Rails
+  # before_bundle
+  apply '.template/hooks/before_complete/copy_env_example.rb'
+  # after_bundle
   apply '.template/hooks/before_complete/fix_rubocop.rb'
   apply '.template/hooks/before_complete/report.rb'
 end