Add Node.js v20

20/Dockerfile

@@ -0,0 +1,37 @@
+FROM debian:trixie-slim
+
+ENV NPM_CONFIG_LOGLEVEL=info
+ENV NODE_VERSION=20.19.4
+
+# gpg keys listed at https://github.com/nodejs/node
+RUN set -ex \
+  && apt-get update \
+  && apt-get install -y ca-certificates curl gnupg dirmngr xz-utils --no-install-recommends \
+  && rm -rf /var/lib/apt/lists/* \
+  # use pre-existing gpg directory, see https://github.com/nodejs/docker-node/pull/1895#issuecomment-1550389150
+  && export GNUPGHOME="$(mktemp -d)" \
+  && for key in \
+      5BE8A3F6C8A5C01D106C0AD820B1A390B168D356 \
+      DD792F5973C6DE52C432CBDAC77ABFA00DDBF2B7 \
+      CC68F5A3106FF448322E48ED27F5E38D5B0A215F \
+      8FCCA13FEF1D0C2E91008E09770F7A9A5AE15600 \
+      890C08DB8579162FEE0DF9DB8BEAB4DFCF555EF4 \
+      C82FA3AE1CBEDC6BE46B9360C43CEC45C17AB93C \
+      108F52B48DB57BB0CC439B2997B01419BD92F80A \
+      A363A499291CBBC940DD62E41F10027AF002F8B0 \
+  ; do \
+    { gpg --batch --keyserver hkps://keys.openpgp.org --recv-keys "$key" && gpg --batch --fingerprint "$key"; } || \
+    { gpg --batch --keyserver keyserver.ubuntu.com --recv-keys "$key" && gpg --batch --fingerprint "$key"; } ; \
+  done \
+  && curl -fsSLO --compressed "https://nodejs.org/dist/v$NODE_VERSION/node-v$NODE_VERSION-linux-x64.tar.xz" \
+  && curl -fsSLO --compressed "https://nodejs.org/dist/v$NODE_VERSION/SHASUMS256.txt.asc" \
+  && gpg --batch --decrypt --output SHASUMS256.txt SHASUMS256.txt.asc \
+  && gpgconf --kill all \
+  && rm -rf "$GNUPGHOME" \
+  && grep " node-v$NODE_VERSION-linux-x64.tar.xz\$" SHASUMS256.txt | sha256sum -c - \
+  && tar -xJf "node-v$NODE_VERSION-linux-x64.tar.xz" -C /usr/local --strip-components=1 \
+  && rm "node-v$NODE_VERSION-linux-x64.tar.xz" SHASUMS256.txt.asc SHASUMS256.txt \
+  && node --version \
+  && npm --version
+
+CMD [ "node" ]

README.md

@@ -20,7 +20,7 @@ bundle exec rake
 
 The above will run Serverspec and using the docker-api gem it will
 
-- Build a Docker image from the Docker file found in the top level directories (22)
+- Build a Docker image from the Docker file found in the top level directories (20 and 22)
 - Create a container of that image,
 - Run the tests found in `spec/` on the container
 - Delete the images and containers if the test was successful

spec/20/Dockerfile_spec.rb

@@ -0,0 +1,23 @@
+require 'serverspec'
+require 'docker'
+require 'node_tests'
+require 'npm_tests'
+
+tag = ENV['TARGET_HOST']
+
+describe "#{tag}" do
+  include Helpers
+
+  before(:all) do
+    create_image(tag)
+  end
+
+  test_node("20.19.4")
+
+  test_npm
+
+  after(:all) do
+    delete_image
+  end  
+
+end