Wave 1 indri→ringtail migration: paperless, teslamate, mealie (#363)

Migrate paperless, teslamate, and mealie off the OOM-saturated minikube-indri node onto ringtail k3s, shedding ~1.1 GiB of resident load. Second chain in the indri-k8s decommission after immich.

**Containers ported to Nix (default.nix), build-verified on ringtail:**
- paperless → wraps nixpkgs paperless-ngx 2.20.15 (pinned unstable); runs as web/worker/beat/consumer
- mealie → wraps nixpkgs mealie 3.16.0 (forward 4-minor bump, breaking-change reviewed); single gunicorn, SQLite
- teslamate → from-scratch beamPackages mixRelease (not in nixpkgs); erlang_27+elixir_1_18, npm assets, ex_cldr locales pre-fetched

**Data:** cold downtime-tolerant cutover. paperless+teslamate postgres dump/restore from quiesced source into a new ringtail blumeops-pg CNPG cluster; mealie SQLite PVC copied. Source DBs untouched until verified (rollback = repoint).

**Also:** ringtail blumeops-pg cluster + ExternalSecrets scaffold; fixes pre-existing shower version-check drift.

Runbook: docs/how-to/ringtail/migrate-wave1-ringtail.md. Deploy-from-branch + cutover happens before merge; container images rebuilt from main after merge.
Reviewed-on: #363
This commit is contained in:
Erich Blume 2026-06-03 10:34:00 -07:00
commit fcac8e5a72
45 changed files with 1422 additions and 445 deletions

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# syntax=docker/dockerfile:1
# Paperless-ngx — self-hosted document management
# Built from source via forge mirror of paperless-ngx/paperless-ngx
# Closely follows upstream Dockerfile structure with git clone instead of COPY
ARG CONTAINER_APP_VERSION=v2.20.13
###############################################
# Stage 1: Clone source (reused by later stages)
###############################################
FROM docker.io/library/alpine:3.22 AS source
ARG CONTAINER_APP_VERSION
RUN apk add --no-cache git
RUN git clone --depth 1 --branch ${CONTAINER_APP_VERSION} \
https://forge.ops.eblu.me/mirrors/paperless-ngx.git /src
###############################################
# Stage 2: Compile frontend
###############################################
FROM --platform=$BUILDPLATFORM docker.io/node:20-trixie-slim AS compile-frontend
COPY --from=source /src/src-ui /src/src-ui
WORKDIR /src/src-ui
RUN set -eux \
&& npm update -g pnpm \
&& npm install -g corepack@latest \
&& corepack enable \
&& pnpm install
RUN set -eux \
&& ./node_modules/.bin/ng build --configuration production
###############################################
# Stage 3: s6-overlay base
###############################################
FROM ghcr.io/astral-sh/uv:0.9.15-python3.12-trixie-slim AS s6-overlay-base
WORKDIR /usr/src/s6
ENV S6_BEHAVIOUR_IF_STAGE2_FAILS=2 \
S6_CMD_WAIT_FOR_SERVICES_MAXTIME=0 \
S6_VERBOSITY=1 \
PATH=/command:$PATH
ARG TARGETARCH
ARG TARGETVARIANT
ARG S6_OVERLAY_VERSION=3.2.1.0
RUN set -eux \
&& apt-get update \
&& apt-get install --yes --quiet --no-install-recommends curl xz-utils \
&& S6_ARCH="" \
&& if [ "${TARGETARCH}${TARGETVARIANT}" = "amd64" ]; then S6_ARCH="x86_64"; \
elif [ "${TARGETARCH}${TARGETVARIANT}" = "arm64" ]; then S6_ARCH="aarch64"; fi \
&& if [ -z "${S6_ARCH}" ]; then echo "Error: Cannot determine arch"; exit 1; fi \
&& curl --fail --silent --show-error --location --remote-name-all --parallel \
"https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-noarch.tar.xz" \
"https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-noarch.tar.xz.sha256" \
"https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-${S6_ARCH}.tar.xz" \
"https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-${S6_ARCH}.tar.xz.sha256" \
&& sha256sum --check ./*.sha256 \
&& tar --directory / -Jxpf s6-overlay-noarch.tar.xz \
&& tar --directory / -Jxpf s6-overlay-${S6_ARCH}.tar.xz \
&& rm ./*.tar.xz ./*.sha256 \
&& apt-get --yes purge curl xz-utils \
&& apt-get --yes autoremove --purge \
&& rm -rf /var/lib/apt/lists/*
# Copy rootfs (s6 service definitions, init scripts)
COPY --from=source /src/docker/rootfs /
###############################################
# Stage 4: Main application
###############################################
FROM s6-overlay-base AS main-app
ARG CONTAINER_APP_VERSION
ARG DEBIAN_FRONTEND=noninteractive
ARG TARGETARCH
ARG JBIG2ENC_VERSION=0.30
ENV PYTHONDONTWRITEBYTECODE=1 \
PYTHONUNBUFFERED=1 \
PYTHONWARNINGS="ignore:::django.http.response:517" \
PNGX_CONTAINERIZED=1 \
UV_LINK_MODE=copy \
UV_CACHE_DIR=/cache/uv/
# Runtime packages
RUN set -eux \
&& apt-get update \
&& apt-get install --yes --quiet --no-install-recommends \
curl gosu tzdata fonts-liberation gettext ghostscript gnupg \
icc-profiles-free imagemagick postgresql-client \
tesseract-ocr tesseract-ocr-eng tesseract-ocr-deu tesseract-ocr-fra \
tesseract-ocr-ita tesseract-ocr-spa unpaper pngquant jbig2dec \
libxml2 libxslt1.1 qpdf file libmagic1 media-types zlib1g \
libzbar0 poppler-utils \
&& curl --fail --silent --show-error --location --remote-name-all \
"https://github.com/paperless-ngx/builder/releases/download/jbig2enc-trixie-v${JBIG2ENC_VERSION}/jbig2enc_${JBIG2ENC_VERSION}-1_${TARGETARCH}.deb" \
&& dpkg --install ./jbig2enc_${JBIG2ENC_VERSION}-1_${TARGETARCH}.deb \
&& cp /etc/ImageMagick-6/paperless-policy.xml /etc/ImageMagick-6/policy.xml \
&& rm --force *.deb \
&& rm -rf /var/lib/apt/lists/*
WORKDIR /usr/src/paperless/src/
# Python dependencies
COPY --from=source /src/pyproject.toml /src/uv.lock /usr/src/paperless/src/
RUN --mount=type=cache,target=${UV_CACHE_DIR},id=python-cache \
set -eux \
&& apt-get update \
&& apt-get install --yes --quiet --no-install-recommends \
build-essential default-libmysqlclient-dev pkg-config \
&& uv export --quiet --no-dev --all-extras --format requirements-txt --output-file requirements.txt \
&& uv pip install --system --no-python-downloads --python-preference system --requirements requirements.txt \
&& python3 -W ignore::RuntimeWarning -m nltk.downloader -d "/usr/share/nltk_data" snowball_data \
&& python3 -W ignore::RuntimeWarning -m nltk.downloader -d "/usr/share/nltk_data" stopwords \
&& python3 -W ignore::RuntimeWarning -m nltk.downloader -d "/usr/share/nltk_data" punkt_tab \
&& apt-get --yes purge build-essential default-libmysqlclient-dev pkg-config \
&& apt-get --yes autoremove --purge \
&& rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
# Copy backend source
COPY --from=source /src/src ./
# Copy compiled frontend
COPY --from=compile-frontend /src/src/documents/static/frontend/ ./documents/static/frontend/
# Create user and finalize
RUN set -eux \
&& addgroup --gid 1000 paperless \
&& useradd --uid 1000 --gid paperless --home-dir /usr/src/paperless paperless \
&& mkdir -p /usr/src/paperless/data /usr/src/paperless/media \
/usr/src/paperless/consume /usr/src/paperless/export \
&& chown -R paperless:paperless /usr/src/paperless \
&& s6-setuidgid paperless python3 manage.py collectstatic --clear --no-input --link \
&& s6-setuidgid paperless python3 manage.py compilemessages
VOLUME ["/usr/src/paperless/data", "/usr/src/paperless/media", \
"/usr/src/paperless/consume", "/usr/src/paperless/export"]
ENTRYPOINT ["/init"]
EXPOSE 8000
HEALTHCHECK --interval=30s --timeout=10s --retries=5 \
CMD [ "curl", "-fs", "-S", "-L", "--max-time", "2", "http://localhost:8000" ]
LABEL org.opencontainers.image.title="Paperless-ngx"
LABEL org.opencontainers.image.description="Self-hosted document management system"
LABEL org.opencontainers.image.version="${CONTAINER_APP_VERSION}"
LABEL org.opencontainers.image.source="https://forge.eblu.me/eblume/blumeops"
LABEL org.opencontainers.image.vendor="blumeops"

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# Nix-built Paperless-ngx for ringtail (amd64).
#
# Replaces the from-source Dockerfile build (s6-overlay) with nixpkgs'
# paperless-ngx, which already bundles the full OCR/imaging closure
# (tesseract, ghostscript, imagemagick, qpdf, poppler, jbig2enc) and the
# NLTK data via wrappers — so the image stays lean.
#
# Unlike the upstream s6 image, this image does NOT run all processes
# itself. Paperless is multi-process; on ringtail it runs as four
# containers sharing this one image, each with a different command:
# web -> paperless-web (granian, the wrapper below)
# worker -> celery --app paperless worker
# beat -> celery --app paperless beat
# consumer -> paperless-ngx document_consumer
# plus a redis/valkey sidecar. The PYTHONPATH/granian invocation mirrors
# the nixpkgs paperless NixOS module's paperless-web service exactly.
#
# Self-pins nixos-unstable: stable nixpkgs lags at 2.19.6, while unstable
# carries 2.20.15 — a same-minor forward patch bump from the previous
# Dockerfile build (v2.20.13). The version assertion makes nix-build fail
# if a pin bump changes the version, forcing an explicit acknowledgment
# here and in service-versions.yaml (enforced by container-version-check).
let
nixpkgs = fetchTarball {
url = "https://github.com/NixOS/nixpkgs/archive/331800de5053fcebacf6813adb5db9c9dca22a0c.tar.gz";
sha256 = "1p54fm6dkbq62kpi55cr4wyx7b1nsajpsnjgs64cmp073fwi15f7";
};
pkgs = import nixpkgs { system = "x86_64-linux"; };
version = "2.20.15";
app = pkgs.paperless-ngx;
# Mirror the NixOS module's paperless-web service: granian serving the
# ASGI app with the package's propagated deps + src on PYTHONPATH.
pythonPath =
"${app.python.pkgs.makePythonPath app.propagatedBuildInputs}:${app}/lib/paperless-ngx/src";
paperless-web = pkgs.writeShellScriptBin "paperless-web" ''
export PYTHONPATH="${pythonPath}"
export PAPERLESS_NLTK_DIR="${app.nltkDataDir}"
exec ${app.python.pkgs.granian}/bin/granian \
--interface asginl --ws \
--host 0.0.0.0 --port 8000 \
"paperless.asgi:application"
'';
in
assert app.version == version;
pkgs.dockerTools.buildLayeredImage {
name = "blumeops/paperless";
contents = [
app
paperless-web
pkgs.bashInteractive
pkgs.coreutils
pkgs.cacert
pkgs.tzdata
];
config = {
# Default command is the web server; worker/beat/consumer containers
# override `command` in their k8s manifests.
Cmd = [ "${paperless-web}/bin/paperless-web" ];
Env = [
"PAPERLESS_NLTK_DIR=${app.nltkDataDir}"
"SSL_CERT_FILE=${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt"
"PYTHONUNBUFFERED=1"
"PNGX_CONTAINERIZED=1"
];
ExposedPorts = {
"8000/tcp" = { };
};
};
}