add experimental support for Docker

README.md

@@ -78,7 +78,7 @@ Here is an example of how to execute the `dataverse-ansible` role with more adju
 
 The role currently supports RHEL/Rocky 8 (9 in a branch) and Debian 11/12 with all services running on the same machine, but intends to become OS-agnostic and support multiple nodes for scalability. Pull requests are welcomed in this way.
 
-If you're interested in testing Dataverse locally using [Vagrant][vagrant], you'll want to clone this repository and edit the local port redirects if the http/https ports on your local machine are already in use. Note that the current Vagrant VM template requires [VirtualBox][virtualbox] 5.0+ and will automatically launch the above command within your Vagrant VM.
+If you're interested in testing Dataverse locally using [Vagrant][vagrant], you'll want to clone this repository and edit the local port redirects if the http/https ports on your local machine are already in use. Note that the current Vagrant VM template expects [VirtualBox][virtualbox] 5.0+ and will automatically launch the above command within your Vagrant VM. (Docker support is experimental and can be invoked with `vagrant up --provider=docker`.)
 
 #### Ansible Tags
 

Vagrantfile

@@ -38,4 +38,16 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
     vbox.cpus = 4
     vbox.memory = 8192
   end
+
+  # Inspired by https://github.com/zulip/zulip/blob/10.4/Vagrantfile
+  config.vm.provider "docker" do |d, override|
+    # don't use the VirtualBox VM defined above
+    override.vm.box = nil
+    # see docker/Dockerfile
+    d.build_dir = File.join(__dir__, "docker")
+    d.build_args = ["--build-arg", "VAGRANT_UID=#{Process.uid}"]
+    d.has_ssh = true
+    d.create_args = ["--ulimit", "nofile=1024:65536"]
+  end
+
 end

docker/Dockerfile

@@ -0,0 +1,53 @@
+# Inspired by https://github.com/zulip/zulip/blob/10.4/tools/setup/dev-vagrant-docker/Dockerfile
+FROM ubuntu:24.04
+
+ARG UBUNTU_MIRROR
+
+# Basic packages and dependencies of docker-systemctl-replacement
+RUN echo locales locales/default_environment_locale select C.UTF-8 | debconf-set-selections \
+    && echo locales locales/locales_to_be_generated select "C.UTF-8 UTF-8" | debconf-set-selections \
+    && { [ ! "$UBUNTU_MIRROR" ] || sed -i "s|http://\(\w*\.\)*archive\.ubuntu\.com/ubuntu/\? |$UBUNTU_MIRROR |" /etc/apt/sources.list; } \
+    # This restores man pages and other documentation that have been
+    # stripped from the default Ubuntu cloud image and installs
+    # ubuntu-minimal and ubuntu-standard.
+    #
+    # This makes sense to do because we're using this image as a
+    # development environment, not a minimal production system.
+    && printf 'y\n\n' | unminimize \
+    && apt-get install --no-install-recommends -y \
+           ca-certificates \
+           curl \
+           locales \
+           openssh-server \
+           python3 \
+           sudo \
+           systemd \
+    && rm -rf /var/lib/apt/lists/*
+
+ARG VAGRANT_UID
+
+RUN \
+    # We use https://github.com/gdraheim/docker-systemctl-replacement
+    # to make services we install like PostgreSQL, Redis, etc. normally
+    # managed by systemd start within Docker, which breaks normal
+    # operation of systemd.
+    dpkg-divert --add --rename /bin/systemctl \
+    && curl -fLsS --retry 3 -o /bin/systemctl 'https://raw.githubusercontent.com/gdraheim/docker-systemctl-replacement/v1.5.8066/files/docker/systemctl3.py' \
+    && echo 'f8736b56299374a316a958e5e949be73e657e2f7069691381664d94950c645c9  /bin/systemctl' | sha256sum -c \
+    && chmod +x /bin/systemctl \
+    && ln -nsf /bin/true /usr/sbin/policy-rc.d \
+    && mkdir -p /run/sshd \
+    # docker-systemctl-replacement doesn’t work with template units yet:
+    # https://github.com/gdraheim/docker-systemctl-replacement/issues/62
+    && ln -ns /lib/systemd/system/[email protected] /etc/systemd/system/multi-user.target.wants/[email protected] \
+    # Set up the vagrant user and its SSH key (globally public)
+    && useradd -ms /bin/bash -u "$VAGRANT_UID" vagrant \
+    && mkdir -m 700 ~vagrant/.ssh \
+    && curl -fLsS --retry 3 -o ~vagrant/.ssh/authorized_keys 'https://raw.githubusercontent.com/hashicorp/vagrant/be7876d83644aa6bdf7f951592fdc681506bcbe6/keys/vagrant.pub' \
+    && chown -R vagrant: ~vagrant/.ssh \
+    && echo 'vagrant ALL=(ALL) NOPASSWD:ALL' > /etc/sudoers.d/vagrant
+
+CMD ["/bin/systemctl"]
+
+EXPOSE 22
+EXPOSE 9991