COPY directive does not seem to copy all files

tiltedkys · May 11, 2026, 7:15am

Hello, I’ve run into an issue while trying to build an image for fluxer
In my dockerfile I have the following:

COPY fluxer_app/ ./fluxer_app/

COPY config/config.production.template.json /tmp/fluxer-build-config.json

ARG BASE_DOMAIN="chat.example.com"
RUN sed -i "s/chat\.example\.com/${BASE_DOMAIN}/g" /tmp/fluxer-build-config.json

ARG FLUXER_CDN_ENDPOINT=""
ENV FLUXER_CONFIG=/tmp/fluxer-build-config.json
ENV FLUXER_CDN_ENDPOINT=${FLUXER_CDN_ENDPOINT}
RUN cd fluxer_app && pnpm lingui:compile && pnpm build

But the build fails at the RUN command because lingui cannot find /usr/src/app/fluxer_app/scripts/build/rspack/lingui.mjs, which should have been copied over into the image. This file exists on the host.
I added RUN ls -l ./fluxer_app/scripts/ to the dockerfile right after the copy, which returned all of the files that should have been present in that directory except for the build directory, which has not been copied over. I would appreciate any suggestions on how I can diagnose/fix this.

bluepuma77 · May 11, 2026, 7:18am

Does the source file exist in host in the relative path mentioned?

tiltedkys · May 11, 2026, 7:19am

Yes it does, edited the post to mention that.

bluepuma77 · May 11, 2026, 7:21am

I would try to set WORKDIR at the top of the Dockerfile.

tiltedkys · May 11, 2026, 7:23am

It is already set, I can paste the entire dockerfile if that will help.

bluepuma77 · May 11, 2026, 7:25am

Sure, full config is always better to check than small snippets only.

tiltedkys · May 11, 2026, 7:26am

Here:

ARG BUILD_SHA
ARG BUILD_NUMBER
ARG BUILD_TIMESTAMP
ARG RELEASE_CHANNEL=nightly

FROM node:24-trixie-slim AS base

WORKDIR /usr/src/app

RUN corepack enable && corepack prepare pnpm@10.26.0 --activate

RUN apt-get update && apt-get install -y --no-install-recommends \
	curl \
	python3 \
	make \
	g++ \
	&& rm -rf /var/lib/apt/lists/*

FROM base AS deps

COPY pnpm-workspace.yaml ./
COPY pnpm-lock.yaml ./
COPY package.json ./
COPY patches/ ./patches/

COPY packages/admin/package.json ./packages/admin/
COPY packages/api/package.json ./packages/api/
COPY packages/app_proxy/package.json ./packages/app_proxy/
COPY packages/cache/package.json ./packages/cache/
COPY packages/captcha/package.json ./packages/captcha/
COPY packages/cassandra/package.json ./packages/cassandra/
COPY packages/config/package.json ./packages/config/
COPY packages/constants/package.json ./packages/constants/
COPY packages/date_utils/package.json ./packages/date_utils/
COPY packages/elasticsearch_search/package.json ./packages/elasticsearch_search/
COPY packages/email/package.json ./packages/email/
COPY packages/errors/package.json ./packages/errors/
COPY packages/geoip/package.json ./packages/geoip/
COPY packages/geo_utils/package.json ./packages/geo_utils/
COPY packages/hono/package.json ./packages/hono/
COPY packages/hono_types/package.json ./packages/hono_types/
COPY packages/http_client/package.json ./packages/http_client/
COPY packages/i18n/package.json ./packages/i18n/
COPY packages/initialization/package.json ./packages/initialization/
COPY packages/ip_utils/package.json ./packages/ip_utils/
COPY packages/kv_client/package.json ./packages/kv_client/
COPY packages/limits/package.json ./packages/limits/
COPY packages/list_utils/package.json ./packages/list_utils/
COPY packages/locale/package.json ./packages/locale/
COPY packages/logger/package.json ./packages/logger/
COPY packages/markdown_parser/package.json ./packages/markdown_parser/
COPY packages/marketing/package.json ./packages/marketing/
COPY packages/media_proxy/package.json ./packages/media_proxy/
COPY packages/media_proxy_utils/package.json ./packages/media_proxy_utils/
COPY packages/meilisearch_search/package.json ./packages/meilisearch_search/
COPY packages/mime_utils/package.json ./packages/mime_utils/
COPY packages/nats/package.json ./packages/nats/
COPY packages/number_utils/package.json ./packages/number_utils/
COPY packages/oauth2/package.json ./packages/oauth2/
COPY packages/openapi/package.json ./packages/openapi/
COPY packages/queue/package.json ./packages/queue/
COPY packages/rate_limit/package.json ./packages/rate_limit/
COPY packages/s3/package.json ./packages/s3/
COPY packages/schema/package.json ./packages/schema/
COPY packages/sentry/package.json ./packages/sentry/
COPY packages/sms/package.json ./packages/sms/
COPY packages/snowflake/package.json ./packages/snowflake/
COPY packages/telemetry/package.json ./packages/telemetry/
COPY packages/time/package.json ./packages/time/
COPY packages/ui/package.json ./packages/ui/
COPY packages/validation/package.json ./packages/validation/
COPY packages/virus_scan/package.json ./packages/virus_scan/
COPY packages/worker/package.json ./packages/worker/
COPY fluxer_server/package.json ./fluxer_server/
COPY fluxer_app/package.json ./fluxer_app/

RUN pnpm install --frozen-lockfile

RUN pnpm approve-builds msgpackr-extract@3.0.3 @parcel/watcher@2.5.6

RUN pnpm rebuild msgpackr-extract @parcel/watcher

FROM deps AS build

COPY tsconfigs /usr/src/app/tsconfigs

COPY packages/ ./packages/
RUN pnpm --filter @fluxer/config generate
COPY fluxer_server/ ./fluxer_server/

RUN pnpm --filter @fluxer/marketing build:css

COPY fluxer_media_proxy/data/model.onnx ./fluxer_media_proxy/data/model.onnx

RUN cd fluxer_server 
#&& pnpm typecheck

FROM erlang:28-slim AS gateway-build

ARG LOGGER_LEVEL=info

WORKDIR /usr/src/app/gateway

RUN apt-get update && apt-get install -y --no-install-recommends \
	git \
	curl \
	make \
	gcc \
	g++ \
	libc6-dev \
	ca-certificates \
	gettext-base \
	&& rm -rf /var/lib/apt/lists/*

RUN curl -fsSL https://github.com/erlang/rebar3/releases/download/3.24.0/rebar3 -o /usr/local/bin/rebar3 && \
	chmod +x /usr/local/bin/rebar3

COPY fluxer_gateway/rebar.config fluxer_gateway/rebar.lock* ./
RUN rebar3 compile --deps_only

COPY fluxer_gateway/. ./fluxer_gateway
RUN LOGGER_LEVEL=${LOGGER_LEVEL} envsubst '${LOGGER_LEVEL}' < fluxer_gateway/config/vm.args.template > fluxer_gateway/config/vm.args && \
	LOGGER_LEVEL=${LOGGER_LEVEL} envsubst '${LOGGER_LEVEL}' < fluxer_gateway/config/sys.config.template > fluxer_gateway/config/sys.config && \
	(cd fluxer_gateway && rebar3 as prod release)

FROM deps AS app-build

#COPY fluxer_app/ ./fluxer_app/

RUN apt-get update && apt-get install -y --no-install-recommends \
    ca-certificates \
    pkg-config \
    libssl-dev \
    && rm -rf /var/lib/apt/lists/*

RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain 1.93.0 --target wasm32-unknown-unknown
ENV PATH="/root/.cargo/bin:${PATH}"
RUN cargo install wasm-pack

COPY tsconfigs /usr/src/app/tsconfigs

COPY packages/ ./packages/

COPY fluxer_app/ ./fluxer_app/

COPY config/config.production.template.json /tmp/fluxer-build-config.json

ARG BASE_DOMAIN="chat.example.com"
RUN sed -i "s/chat\.example\.com/${BASE_DOMAIN}/g" /tmp/fluxer-build-config.json

ARG FLUXER_CDN_ENDPOINT=""
ENV FLUXER_CONFIG=/tmp/fluxer-build-config.json
ENV FLUXER_CDN_ENDPOINT=${FLUXER_CDN_ENDPOINT}
RUN cd fluxer_app && pnpm lingui:compile && pnpm build

FROM node:24-trixie-slim AS production

ARG BUILD_SHA
ARG BUILD_NUMBER
ARG BUILD_TIMESTAMP
ARG RELEASE_CHANNEL

LABEL org.opencontainers.image.title="Fluxer Server"
LABEL org.opencontainers.image.description="Unified Fluxer server for self-hosting - combines all backend services into a single deployable container"
LABEL org.opencontainers.image.vendor="Fluxer Contributors"
LABEL org.opencontainers.image.licenses="AGPL-3.0-or-later"
LABEL org.opencontainers.image.source="https://github.com/fluxerapp/fluxer"
LABEL org.opencontainers.image.documentation="https://docs.fluxer.app"
LABEL org.opencontainers.image.revision="${BUILD_SHA}"
LABEL org.opencontainers.image.version="${BUILD_NUMBER}"
LABEL org.opencontainers.image.created="${BUILD_TIMESTAMP}"

WORKDIR /usr/src/app

RUN apt-get update && apt-get install -y --no-install-recommends \
	curl \
	ffmpeg \
	&& rm -rf /var/lib/apt/lists/*


RUN corepack enable && corepack prepare pnpm@10.26.0 --activate

COPY --from=build /usr/src/app/node_modules ./node_modules
COPY --from=build /usr/src/app/packages ./packages
COPY --from=build /usr/src/app/fluxer_server ./fluxer_server
COPY --from=build /usr/src/app/tsconfigs ./tsconfigs
COPY --from=build /usr/src/app/pnpm-workspace.yaml ./
COPY --from=build /usr/src/app/package.json ./
COPY --from=gateway-build /usr/src/app/gateway/fluxer_gateway/_build/prod/rel/fluxer_gateway /opt/fluxer_gateway
COPY --from=app-build /usr/src/app/fluxer_app/dist /usr/src/app/assets

RUN mkdir -p /usr/src/app/data/storage && \
	mkdir -p /usr/src/app/data/db && \
	mkdir -p /opt/data && \
	mkdir -p /data/s3 && \
	mkdir -p /data/sqlite && \
	mkdir -p /data/queue && \
	mkdir -p /var/log/fluxer && \
	chown -R root:root /usr/src/app/data && \
	chown -R root:root /opt/data && \
	chown -R root:root /data

ARG INCLUDE_NSFW_ML=false

RUN --mount=type=bind,from=build,source=/usr/src/app/fluxer_media_proxy/data/model.onnx,target=/tmp/model.onnx \
    if [ "$INCLUDE_NSFW_ML" = "true" ]; then \
        echo "Including NSFW detection model..."; \
        cp /tmp/model.onnx /opt/data/model.onnx; \
    else \
        echo "Skipping NSFW detection model (INCLUDE_NSFW_ML=$INCLUDE_NSFW_ML)"; \
    fi



EXPOSE 8080


ENV NODE_ENV=production

ENV FLUXER_SERVER_HOST=0.0.0.0
ENV FLUXER_SERVER_PORT=8080
ENV FLUXER_GATEWAY_HOST=127.0.0.1
ENV FLUXER_GATEWAY_PORT=8082
ENV DATABASE_BACKEND=sqlite
ENV SQLITE_PATH=/usr/src/app/data/db/fluxer.db
ENV STORAGE_ROOT=/usr/src/app/data/storage
ENV SEARCH_BACKEND=sqlite
ENV FLUXER_SERVER_STATIC_DIR=/usr/src/app/assets

ENV BUILD_SHA=${BUILD_SHA}
ENV BUILD_NUMBER=${BUILD_NUMBER}
ENV BUILD_TIMESTAMP=${BUILD_TIMESTAMP}
ENV RELEASE_CHANNEL=${RELEASE_CHANNEL}

HEALTHCHECK --interval=30s --timeout=10s --retries=3 \
	CMD curl -f http://localhost:8080/_health || exit 1

ENTRYPOINT ["pnpm", "--filter", "fluxer_server", "start"]

rimelek · May 11, 2026, 7:08pm

Are you sure the build directory is not ignored in a “.dockerignore” file somewhere in the project? “build” directories are often ignored for example:

**/build

It is like .gitignore but for docker build.

tiltedkys · May 12, 2026, 2:10am

I entirely removed the .dockerignore file, but while it existed it did not contain **/build or any other statements that would ignore that directory.

tiltedkys · May 12, 2026, 2:28am

Nevermind, I found another .dockerignore file that I have missed, I edited that one to not ignore the build directory and now everything builds fine. Sorry for wasting your time.

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