ARM and Raspberry Pi Support for Docker builds

As of commit c3b8137, Docker Hub now hosts images for linux/amd64, linux/arm/v7, and linux/arm64, meaning no changes should be needed to the install instructions for szurubooru to work on a Raspberry Pi. Note the following issues reported by users however:

• While the postgres:11-alpine recommended by this project should work, one user found better success using Postgres (v13). See #410

• Alpine 3.13 isn't compatible by default with Raspbian and requires an update to libseccomp2 (See here):

$ wget http://ftp.de.debian.org/debian/pool/main/libs/libseccomp/libseccomp2_2.5.1-1_armhf.deb
$ dpkg -i libseccomp2_2.5.1-1_armhf.deb

• If there is demand for additional build platforms to be included, please open an issue

For release version 2.3 or earlier:

Per this post by WychWitch

Here are my files! If this isn't enough let me know, I might've forgotten one. Again, this is only for rpi3/arm32v7

replace all of the [name] and [password] with your own!

Client/Dockerfile

FROM arm32v7/node:9 as builder
WORKDIR /opt/app

COPY package.json ./
RUN npm install

COPY . ./

ARG BUILD_INFO="docker-latest"
ARG CLIENT_BUILD_ARGS=""
RUN BASE_URL="__BASEURL__" node build.js --gzip ${CLIENT_BUILD_ARGS}


FROM tobi312/rpi-nginx:alpine
WORKDIR /var/www

RUN \
    # Create init file
    echo "#!/bin/sh" >> /init && \
    echo 'sed -i "s|__BACKEND__|${BACKEND_HOST}|" /etc/nginx/nginx.conf' >> /init && \
    echo 'sed -i "s|__BASEURL__|${BASE_URL:-/}|g" /var/www/index.htm /var/www/manifest.json' >> /init && \
    echo 'exec nginx' >> /init && \
    chmod a+x /init

CMD ["/init"]
VOLUME ["/data"]

COPY nginx.conf.docker /etc/nginx/nginx.conf
COPY --from=builder /opt/app/public/ .

Server/Dockerfile

FROM scratch as approot
WORKDIR /opt/app

COPY alembic.ini wait-for-es generate-thumb ./
COPY szurubooru/ ./szurubooru/
COPY config.yaml.dist ./


FROM python:3.6-slim
WORKDIR /opt/app

ARG PUID=1000
ARG PGID=1000
ARG PORT=6666
RUN \
    # Set users
    mkdir -p /opt/app /data && \
    groupadd -g ${PGID} app && \
    useradd -d /opt/app -M -c '' -g app -r -u ${PUID} app && \
    chown -R app:app /opt/app /data && \
    # Create init file
    echo "#!/bin/sh" >> /init && \
    echo "set -e" >> /init && \
    echo "cd /opt/app" >> /init && \
    echo "./wait-for-es" >> /init && \
    echo "alembic upgrade head" >> /init && \
    echo "exec waitress-serve --port ${PORT} szurubooru.facade:app" \
        >> /init && \
    chmod a+x /init && \
    # Install ffmpeg
    apt-get -yqq update && \
    apt-get -yq install --no-install-recommends ffmpeg libpq-dev make gcc libffi-dev zlib1g-dev libjpeg-dev libtiff-dev libfreetype6-dev liblcms2-dev libwebp-dev tcl-dev && \
    rm -rf /var/lib/apt/lists/* && \
    # Install waitress
    pip3 install --no-cache-dir waitress

COPY --chown=app:app requirements.txt ./requirements.txt
RUN pip3 install --no-cache-dir -r ./requirements.txt

# done to minimize number of layers in final image
COPY --chown=app:app --from=approot / /

VOLUME ["/data/"]
EXPOSE ${PORT}
USER app
CMD ["/init"]

.env

# Database credentials
POSTGRES_USER=[name]
POSTGRES_PASSWORD=[password]

# This shows up on the homescreen, indicating build information
BUILD_INFO=latest

# Port to expose HTTP service
PORT=[port]

# Directory to store image data
## remember to chmod this directory
MOUNT_DATA=/var/local/[name]/data

# Directory to store database files
MOUNT_SQL=/var/local/[name]/sql

requirements.txt

alembic>=0.8.5
pyyaml>=3.11
psycopg2-binary>=2.6.1
SQLAlchemy>=1.0.12
coloredlogs==5.0
elasticsearch>=5.0.0
elasticsearch-dsl>=5.0.0
numpy>=1.8.2
pillow>=4.3.0
pynacl==1.2.1
pytz>=2018.3
pyRFC3339>=1.0

docker-compose.yml;

## Example Docker Compose configuration
##
## Use this as a template to set up docker-compose, or as guide to set up other
## orchestration services
version: '2'

services:
  api:
    build:
      context: ./server
    depends_on:
      - sql
      - elasticsearch
    environment:
      ## These should be the names of the dependent containers listed above,
      ## or FQDNs/IP addresses if these services are running outside of Docker
      POSTGRES_HOST: sql
      ESEARCH_HOST: elasticsearch
      ## Credentials for database:
      POSTGRES_USER: [Name]
      POSTGRES_PASSWORD: [pass]
      ## Commented Values are Default:
      #POSTGRES_DB: defaults to same as POSTGRES_USER
      #POSTGRES_PORT: 5432
      #ESEARCH_PORT: 9200
      #ESEARCH_INDEX: szurubooru
      #LOG_SQL: 0 (1 for verbose SQL logs)
    volumes:
      - "${MOUNT_DATA}:/data"
      - "./server/config.yaml:/opt/app/config.yaml"
  client:
    build:
      context: ./client
      args:
        BUILD_INFO:
    depends_on:
      - api
    environment:
      BACKEND_HOST: api
    volumes:
      - "${MOUNT_DATA}:/data:ro"
    ports:
      - "${PORT}:80"
  sql:
    image: postgres:alpine
    restart: unless-stopped
    environment:
      POSTGRES_USER: [name]
      POSTGRES_PASSWORD: [pass]
    volumes:
      - "${MOUNT_SQL}:/var/lib/postgresql/data"
  elasticsearch:
    image: ind3x/rpi-elasticsearch
    environment:
      ## Specifies the Java heap size used
      ## Read
      ##  https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html
      ## for more info
      ES_JAVA_OPTS: -Xms512m -Xmx512m
    volumes:
      - index:/usr/share/elasticsearch/data

volumes:
  index: # Scratch space for ElasticSearch index, will be rebuilt if lost