feat: setup houdini image build

houdini/Dockerfile

@@ -0,0 +1,52 @@
+# syntax=docker/dockerfile:1.7
+#
+# Base + install command follow SideFX's own docker/Ubuntu/Dockerfile
+# (shipped inside the Houdini tarball). Ubuntu 22.04 matters here, not just
+# as a default: gccXX.X-tagged tarballs need a libstdc++ new enough to match,
+# and Ubuntu's base image keeps libstdc++6 updated while RHEL/Rocky pin their
+# system toolchain for the OS lifetime.
+FROM docker.io/library/ubuntu:22.04 AS base
+
+ARG HOUDINI_TARBALL=houdini-linux.tar.gz
+# Plain YYYY-MM-DD, no "SideFX-" prefix (that prefix is for the newer,
+# unrelated houdini_installer launcher tool). Current EULA date: 2021-10-13,
+# see https://www.sidefx.com/legal/license-agreement/
+ARG HOUDINI_EULA_DATE=2021-10-13
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        sudo procps \
+        bc fontconfig wget libasound2 libgl1 libglu1 libglu1-mesa libglx0 \
+        libegl1 libatomic1 libxkbfile1 libxcb-cursor0 \
+        libice6 libnss3 libopengl0 libpci3 libsm6 libx11-6 libx11-xcb1 \
+        libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-randr0 \
+        libxcb-render-util0 libxcb-render0 libxcb-shape0 libxcb-shm0 \
+        libxcb-sync1 libxcb-util1 libxcb-xfixes0 libxcb-xinerama0 \
+        libxcb-xkb1 libxcb1 libxcomposite1 libxcursor1 libxdamage1 \
+        libxext6 libxi6 libxkbcommon-x11-0 libxkbcommon0 libxrandr2 \
+        libxrender1 libxss1 libxt6 libxtst6 && \
+    rm -rf /var/lib/apt/lists/*
+
+WORKDIR /tmp/houdini
+COPY ${HOUDINI_TARBALL} ./houdini.tar.gz
+
+# Flags match SideFX's own Dockerfile verbatim (space before the date, no
+# '='). The installer creates /opt/hfs<major.minor> (e.g. /opt/hfs22.0), not
+# a generic /opt/hfs — add our own stable symlink so houdini-run and the
+# profile.d snippet don't need to know the version.
+RUN tar xzf houdini.tar.gz --strip-components=1 && \
+    ./houdini.install --auto-install --accept-EULA ${HOUDINI_EULA_DATE} && \
+    ln -s "$(find /opt -maxdepth 1 -type d -name 'hfs[0-9]*' | sort -V | tail -1)" /opt/hfs && \
+    rm -rf /tmp/houdini
+
+COPY houdini-run /usr/local/bin/houdini-run
+RUN chmod +x /usr/local/bin/houdini-run && \
+    printf 'if [ -d /opt/hfs ]; then _p="$PWD"; cd /opt/hfs && . ./houdini_setup >/dev/null 2>&1; cd "$_p"; fi\n' \
+        > /etc/profile.d/houdini.sh
+
+FROM base AS amd
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        libgl1-mesa-dri libglx-mesa0 mesa-vulkan-drivers && \
+    rm -rf /var/lib/apt/lists/*
+
+FROM base AS nvidia
+# GL/Vulkan/CUDA come from the host driver via `distrobox --nvidia`.