Javascript runtime not found error

[navjeetc]

I am getting this error on "kamal setup" for my rails 7 apps.

#17 [linux/arm64 build 5/6] RUN bundle exec bootsnap precompile app/ lib/
#17 CACHED

#18 [linux/arm64 stage-2 1/4] RUN apt-get update -qq &&     apt-get install --no-install-recommends -y curl libsqlite3-0 libvips &&     rm -rf /var/lib/apt/lists /var/cache/apt/archives
#18 CACHED

#19 [linux/arm64 build 6/6] RUN SECRET_KEY_BASE_DUMMY=1 ./bin/rails assets:precompile
#19 0.560 bin/rails aborted!
#19 0.560 ExecJS::RuntimeUnavailable: Could not find a JavaScript runtime. See https://github.com/rails/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
#19 0.561 /usr/local/bundle/ruby/3.2.0/gems/execjs-2.9.1/lib/execjs/runtimes.rb:68:in `autodetect'
#19 0.561 /usr/local/bundle/ruby/3.2.0/gems/execjs-2.9.1/lib/execjs.rb:5:in `<module:ExecJS>'
#19 0.561 /usr/local/bundle/ruby/3.2.0/gems/execjs-2.9.1/lib/execjs.rb:4:in `<main>'
#19 0.561 <internal:/usr/local/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:37:in `require

I am using dockerfile that was created by "rails new". i am using Rails 7.1.3.2