[add] added docker
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69
Dockerfile
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69
Dockerfile
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ARG RUBY_VERSION=2.7.2
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## BUILD ENV
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FROM ruby:${RUBY_VERSION}-alpine AS build_env
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ARG BUILD_PACKAGES="build-base curl-dev git"
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ARG DEV_PACKAGES="sqlite-dev"
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ARG RUBY_PACKAGES="tzdata"
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ARG RAILS_ROOT=/app
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ENV RAILS_ENV=production
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ENV BUNDLE_APP_CONFIG="$RAILS_ROOT/.bundle"
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WORKDIR $RAILS_ROOT
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# install packages
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RUN apk update \
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&& apk upgrade \
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&& apk add --update --no-cache $BUILD_PACKAGES $DEV_PACKAGES $RUBY_PACKAGES
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# copy app and cleanup dev environment in case this is not a clean git clone
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COPY . .
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RUN rm -rf .bundle vendor .vendor tmp/* db/*.sqlite3 log/* spec
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# install gems
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RUN gem install bundler:2.2.9 \
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&& bundle config --global frozen 1 \
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&& bundle config --local path 'vendor/bundle' \
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&& bundle config set without 'development:test:assets' \
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&& bundle install -j4 --retry 3 \
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# Remove unneeded files (cached *.gem, *.o, *.c)
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&& rm -rf vendor/bundle/ruby/*/cache/*.gem \
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&& find vendor/bundle/ruby/*/gems/ -name "*.c" -delete \
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&& find vendor/bundle/ruby/*/gems/ -name "*.o" -delete
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# remove folders not needed in resulting image
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RUN rm -rf tmp/cache app/assets vendor/assets spec docker
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## DEPLOY ENV
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FROM ruby:${RUBY_VERSION}-alpine
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ARG PACKAGES="tzdata sqlite-libs"
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ARG RAILS_ROOT=/app
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ENV RAILS_ENV=production
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ENV BUNDLE_APP_CONFIG="$RAILS_ROOT/.bundle"
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ARG USER_UID=12001
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ARG USER_GID=12001
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ARG GROUP_NAME=ryndns
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ARG USER_NAME=ryndns
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WORKDIR $RAILS_ROOT
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# make user
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RUN set -eux; \
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addgroup -g $USER_UID $GROUP_NAME; \
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adduser -u $USER_UID -G $GROUP_NAME -s /sbin/nologin -D $USER_NAME;
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# install packages
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RUN apk update \
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&& apk upgrade \
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&& apk add --update --no-cache $PACKAGES
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# get app from build env and add entrypoint
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COPY --from=build_env $RAILS_ROOT $RAILS_ROOT
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COPY ./docker/files/entrypoint.sh /
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# create persistent folder and change permission of app
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RUN mkdir -p $RAILS_ROOT/data \
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&& chown -R $USER_NAME:$GROUP_NAME $RAILS_ROOT
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USER $USER_NAME
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EXPOSE 3000
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ENTRYPOINT ["/entrypoint.sh"]
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32
docker-compose.yml
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32
docker-compose.yml
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version: '3.7'
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services:
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ryndns:
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build:
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context: .
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args:
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USER_UID: ${UID_PROXY:-12001}
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USER_GID: ${UID_PROXY:-12001}
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environment:
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# set to run app in subdirectory
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RAILS_RELATIVE_URL_ROOT: /rynDNS
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# set custom api key prefix
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#API_KEY_PREFIX: zW3If4s5
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# set custom header name for api key
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#API_KEY_HEADER: X-API-Key
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# set to reset the admin account
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#RAILS_RESET_ADMIN: 1
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# set app to run as demo
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#RAILS_API_DEMO: 1
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# set cycle to reset demo data
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#RAILS_DEMO_RESET: 300
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restart: always
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image: ryndns
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container_name: ryndns
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ports:
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- "3000:3000"
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volumes:
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- ryndns:/app/data
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volumes:
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ryndns:
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125
docker/files/entrypoint.sh
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125
docker/files/entrypoint.sh
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#!/bin/sh
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##############################
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# configuration
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prefix_file="${API_PREFIX_FILE:-/app/data/api_prefix}"
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db_file="${RAILS_DB_PATH:-/app/data/rynDNS.sqlite3}"
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default_admin_file="${API_DEFAULT_KEY_FILE:-/app/data/api_default_admin}"
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rails_bin="${RAILS_BINARY:-/app/bin/rails}"
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demo_cycle="${RAILS_DEMO_RESET:-300s}"
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demo_prefix="zW3If4s5"
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seed_default_key_text="Created default admin with api_key" # for grep'ing the default admin key
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# end configuration
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##############################
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function log()
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{
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local time=$(date +%F_%T)
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local prefix="LOG"
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case $1 in
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ERR | ERROR)
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prefix="ERR"
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shift
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;;
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WAR | WARNING)
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prefix="WAR"
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shift
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;;
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INF | INFO)
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prefix="INF"
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shift
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;;
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esac
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local func=$1; shift
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# remove any \n
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#local text=$(echo "$@"| tr '\n' '#' | sed 's|#|\\n |g')
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case "$logfile" in
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"")
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echo "[$time]:[$prefix]:[$0][$func]: $@" 2>&1
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;;
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*)
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echo "[$time]:[$prefix]:[$0][$func]: $@" >> $logfile
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;;
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esac
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}
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function random_sting()
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{
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echo -n "$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w "${1:-32}" | head -n 1)"
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}
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function get_prefix_file()
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{
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if [ -f "$prefix_file" ]; then
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echo -n "$(head -1 $prefix_file)"
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else
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new_prefix=$(random_sting 8)
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log get_prefix_file no prefix file, generating new one
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echo -n "$new_prefix" > "$prefix_file"
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echo -n "$new_prefix"
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fi
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}
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function set_api_prefix()
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{
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if [ -z "$RAILS_API_KEY_PREFIX" ]; then
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log set_api_prefix setting prefix from file
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RAILS_API_KEY_PREFIX=$(get_prefix_file | tail -1)
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export RAILS_API_KEY_PREFIX
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else
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log set_api_prefix saving prefix from ENV to file
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echo -n "$RAILS_API_KEY_PREFIX" > "$prefix_file"
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fi
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}
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function demo_cleaner()
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{
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while true; do
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log demo_cleaner cleaning up;
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db_setup
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# starting sleep in subshell to be able to quickly terminate
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sleep $demo_cycle &
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wait
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done
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}
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function demo()
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{
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if [ ! -z "$RAILS_API_DEMO" ]; then
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log demo "setting prefix to $demo_prefix"
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RAILS_API_KEY_PREFIX="$demo_prefix"
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export RAILS_API_KEY_PREFIX
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log demo "setting up demo cleaner, resetting every $demo_cycle"
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demo_cleaner &
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fi
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}
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function db_setup()
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{
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if [ ! -f $db_file ]; then
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log db_setup running first time migrations
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echo "$($rails_bin db:migrate)"
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fi
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log db_setup seeding database
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seed_log="$($rails_bin db:seed)"
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echo "$seed_log"
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# save default login to file
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default_admin=$(echo "$seed_log" | grep "$seed_default_key_text")
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[ "${#default_admin}" -gt 8 ] && echo -n "$default_admin" > $default_admin_file
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log db_setup "see \`docker exec \$CONTAINER cat $default_admin_file\` for initial admin api_key"
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}
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function main()
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{
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set_api_prefix
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log main prefix: $RAILS_API_KEY_PREFIX
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db_setup
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[ "$(id -u)" -eq 0 ] && log WARN main running server as root
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demo
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log main starting server
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exec $rails_bin s
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}
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main "$@"
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