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webvirtcloud/Dockerfile
catborise d37aa42392 feat(console): a working serial console
The xterm console never connected: socketiod expected a different token
format, its worker had no compute credentials, one global console was
shared by every client and its output broadcast to all of them, and the
Docker image did not run socketiod at all.

- console/tokens.py: one authorize() for noVNC and socketiod; the signed
  token is the only credential, checked at connect time.
- socketiod: one pty worker per client (consolecallback with the
  instance id), one session per VM, a session cap, input and resize
  checked; the parent never opens libvirt. The engine.io same-origin
  check is on.
- consolecallback: opens the console with the compute's credentials and
  exits with a message when it cannot.
- Docker runs socketiod as a runit service; nginx proxies /socket.io/
  with Host and the scheme for the origin check. Supervisor and systemd
  start it as well; WEBVIRTCLOUD_SERIAL_CONSOLE=1 enables it.
- Tests: token and session unit tests, socketiod as a process, and a
  live test that reads SeaBIOS from a wvc-test VM on the TCP and SSH
  hosts.
2026-10-17 19:43:09 +03:00

100 lines
3.6 KiB
Docker

FROM phusion/baseimage:noble-1.0.3 AS build
# Compilers and headers for libvirt-python and python-ldap; they stay in this stage.
# hadolint ignore=DL3008
RUN apt-get update -qqy \
&& DEBIAN_FRONTEND=noninteractive apt-get -qyy install \
--no-install-recommends \
python3-venv \
python3-dev \
libvirt-dev \
zlib1g-dev \
pkg-config \
gcc \
libldap2-dev \
libssl-dev \
libsasl2-dev \
&& rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
WORKDIR /srv/webvirtcloud
COPY conf/requirements.txt conf/requirements.txt
# hadolint ignore=DL3013,DL3042
RUN python3 -m venv venv \
&& venv/bin/pip install --no-cache-dir -U pip wheel \
&& venv/bin/pip install --no-cache-dir -r conf/requirements.txt
FROM phusion/baseimage:noble-1.0.3
EXPOSE 80
# The browser reaches the console through nginx on the panel's port (the init
# script writes this into settings.py); set it to the published port if not 80.
ENV WS_PUBLIC_PORT=80
# Use baseimage-docker's init system. my_init force-stops services after
# KILL_PROCESS_TIMEOUT seconds (default 30); the worker drains jobs for 60 s.
ENV KILL_PROCESS_TIMEOUT=80
CMD ["/sbin/my_init"]
RUN echo 'APT::Get::Clean=always;' >> /etc/apt/apt.conf.d/99AutomaticClean
# Shared libraries of the compiled wheels, and nginx; no compilers or headers.
# hadolint ignore=DL3008
RUN apt-get update -qqy \
&& DEBIAN_FRONTEND=noninteractive apt-get -qyy install \
--no-install-recommends \
python3 \
nginx \
libvirt0 \
libsasl2-modules \
&& rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
WORKDIR /srv/webvirtcloud
COPY --from=build /srv/webvirtcloud/venv venv
COPY . /srv/webvirtcloud
# Run collectstatic with temporary dummy key, then remove temporary settings file
RUN cp webvirtcloud/settings.py.template webvirtcloud/settings.py && \
SECRET_KEY="build-dummy-key-only-for-collectstatic" venv/bin/python3 manage.py collectstatic --noinput && \
rm -f webvirtcloud/settings.py && \
chown -R www-data:www-data /srv/webvirtcloud
# Setup Nginx
RUN printf "\n%s" "daemon off;" >> /etc/nginx/nginx.conf && \
rm -f /etc/nginx/sites-enabled/default && \
chown -R www-data:www-data /var/lib/nginx
COPY conf/nginx/webvirtcloud.conf /etc/nginx/conf.d/
# Register startup init script and services to runit
RUN mkdir -p /etc/my_init.d \
/etc/service/nginx \
/etc/service/nginx-log-forwarder \
/etc/service/webvirtcloud \
/etc/service/webvirtcloud-worker \
/etc/service/novnc \
/etc/service/socketiod
COPY conf/runit/10_webvirtcloud_init.sh /etc/my_init.d/10_webvirtcloud_init.sh
COPY conf/runit/nginx /etc/service/nginx/run
COPY conf/runit/nginx-log-forwarder /etc/service/nginx-log-forwarder/run
COPY conf/runit/novncd.sh /etc/service/novnc/run
COPY conf/runit/socketiod.sh /etc/service/socketiod/run
COPY conf/runit/webvirtcloud.sh /etc/service/webvirtcloud/run
COPY conf/runit/webvirtcloud-worker.sh /etc/service/webvirtcloud-worker/run
RUN chmod +x /etc/my_init.d/10_webvirtcloud_init.sh \
/etc/service/nginx/run \
/etc/service/nginx-log-forwarder/run \
/etc/service/novnc/run \
/etc/service/socketiod/run \
/etc/service/webvirtcloud/run \
/etc/service/webvirtcloud-worker/run
# X-Forwarded-Proto: https keeps the probe from being redirected when the
# HTTPS profile is on (nginx passes the header on; see conf/nginx).
HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \
CMD /srv/webvirtcloud/venv/bin/python3 -c "import urllib.request as u; u.urlopen(u.Request('http://127.0.0.1/accounts/login/', headers={'X-Forwarded-Proto': 'https'}), timeout=5)"
# Declare mountable data directory for persistent SQLite and SSH keys
VOLUME ["/srv/webvirtcloud/data", "/var/www/.ssh"]
WORKDIR /srv/webvirtcloud