add docker build

2019-07-06 18:12:32 +02:00 · 2019-07-06 18:12:32 +02:00 · fa1b98365b
commit fa1b98365b
parent 5698d86756
18 changed files with 686 additions and 0 deletions
--- a/.dockerignore
+++ b/.dockerignore
@ -0,0 +1,3 @@
+.env
+data/
+overlay/
--- a/.gitignore
+++ b/.gitignore
@ -29,3 +29,5 @@ static/django_extensions
 *.swp
 pandora/gunicorn_config.py
 .DS_Store
+.env
+overlay/
--- a/11
+++ b/11
@ -0,0 +1,11 @@
+FROM 0x2620/pandora-base:latest
+
+LABEL maintainer="0x2620@0x2620.org"
+
+ENV LANG en_US.UTF-8
+
+#VOLUME /pandora
+COPY . /srv/pandora
+RUN /srv/pandora/docker/install.sh
+
+ENTRYPOINT [ "/entrypoint.sh" ]
--- a/docker-compose.yml
+++ b/docker-compose.yml
@ -0,0 +1,91 @@
+version: '3'
+
+volumes:
+    pandora:
+    postgres:
+    rabbitmq:
+
+networks:
+    backend:
+
+services:
+    proxy:
+        build: docker/nginx
+        ports:
+            - "127.0.0.1:2620:80"
+        networks:
+            - backend
+            - default
+        links:
+            - pandora
+            - websocketd
+        depends_on:
+            - pandora
+            - websocketd
+        volumes:
+            - pandora:/pandora
+            - ./overlay:/overlay
+        restart: unless-stopped
+
+    db:
+        image: postgres:latest
+        networks:
+            - backend
+        env_file: .env
+        volumes:
+            - postgres:/var/lib/postgresql/data/
+        restart: unless-stopped
+
+    rabbitmq:
+        hostname: rabbitmq
+        image: rabbitmq:latest
+        env_file: .env
+        networks:
+            - backend
+        volumes:
+            - rabbitmq:/var/lib/rabbitmq
+        restart: unless-stopped
+
+    pandora:
+        hostname: pandora
+        build: .
+        command: pandora
+        volumes:
+            - pandora:/pandora
+            - ./overlay:/overlay
+        networks:
+            - backend
+        env_file: .env
+        links:
+            - db
+            - rabbitmq
+        depends_on:
+            - db
+            - rabbitmq
+        restart: unless-stopped
+
+    encoding: &app_base
+        build: .
+        command: encoding
+        env_file: .env
+        networks:
+            - backend
+        volumes:
+            - pandora:/pandora
+            - ./overlay:/overlay
+        restart: unless-stopped
+
+    tasks:
+        <<: *app_base
+        command: tasks
+
+    cron:
+        <<: *app_base
+        command: cron
+
+    websocketd:
+        <<: *app_base
+        command: websocketd
+        networks:
+            - backend
+
--- a/docker/base/Dockerfile
+++ b/docker/base/Dockerfile
@ -0,0 +1,14 @@
+FROM debian:buster
+
+LABEL maintainer="0x2620@0x2620.org"
+
+ENV LANG en_US.UTF-8
+
+RUN apt-get update && \
+    LANG=C.UTF-8 DEBIAN_FRONTEND=noninteractive apt-get install -y apt-utils locales && \
+    echo en_US.UTF-8 UTF-8 > /etc/locale.gen && \
+    locale-gen en_US.UTF-8 && \
+    update-locale LANG=en_US.UTF-8
+
+COPY ./install.sh /install.sh
+RUN /install.sh
--- a/docker/base/install.sh
+++ b/docker/base/install.sh
@ -0,0 +1,63 @@
+#!/bin/bash
+
+UBUNTU_CODENAME=bionic
+if [ -e /etc/os-release ]; then
+    . /etc/os-release
+fi
+
+export DEBIAN_FRONTEND=noninteractive
+echo 'Acquire::Languages "none";' > /etc/apt/apt.conf.d/99languages
+apt-get update -qq
+echo "deb http://ppa.launchpad.net/j/pandora/ubuntu ${UBUNTU_CODENAME} main" > /etc/apt/sources.list.d/j-pandora.list
+apt-get install -y gnupg2
+apt-key add - <<EOF
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: GnuPG v1
+
+mI0ESXYhEgEEALl9jDTdmgpApPbjN+7b85dC92HisPUp56ifEkKJOBj0X5HhRqxs
+Wjx/zlP4/XJGrHnxJyrdPxjSwAXz7bNdeggkN4JWdusTkr5GOXvggQnng0X7f/rX
+oJwoEGtYOCODLPs6PC0qjh5yPzJVeiRsKUOZ7YVNnwNwdfS4D8RZvtCrABEBAAG0
+FExhdW5jaHBhZCBQUEEgZm9yIGpeiLYEEwECACAFAkl2IRICGwMGCwkIBwMCBBUC
+CAMEFgIDAQIeAQIXgAAKCRAohRM8AZde82FfA/9OB/64/YLaCpizHZ8f6DK3rGgF
+e6mX3rFK8yOKGGL06316VhDzfzMiZSauUZ0t+lKHR/KZYeSaFwEoUoblTG/s4IIo
+9aBMHWhVXJW6eifKUmTGqEn2/0UxoWQq2C3F6njMkCaP+ALOD5uzaSYGdjqAUAwS
+pAAGSEQ4uz6bYSeM4Q==
+=SM2a
+-----END PGP PUBLIC KEY BLOCK-----
+EOF
+
+apt-get update -qq
+apt-get install -y \
+    netcat-openbsd \
+    sudo \
+    vim \
+    wget \
+    pwgen \
+    git \
+    python3-setuptools \
+    python3-pip \
+    python3-venv \
+    python3-dev \
+    python3-pil \
+    python3-numpy \
+    python3-psycopg2 \
+    python3-pyinotify \
+    python3-simplejson \
+    python3-lxml \
+    python3-cssselect \
+    python3-html5lib \
+    python3-ox \
+    oxframe \
+    ffmpeg \
+    mkvtoolnix \
+    gpac \
+    imagemagick \
+    poppler-utils \
+    youtube-dl \
+    ipython3 \
+    postfix \
+    postgresql-client
+
+apt-get clean
+
+rm -f /install.sh
--- a/docker/build.sh
+++ b/docker/build.sh
@ -0,0 +1,17 @@
+#!/bin/sh
+cd `dirname $0`
+
+HOST=`/sbin/ip route | grep docker0 | awk '{ print $9 }'`
+PORT=3142
+nc -z "$HOST" "$PORT" > /dev/null 2>&1
+result=$?
+if [ $result -eq 0 ] ; then
+    proxy="--build-arg http_proxy=http://$HOST:$PORT"
+else
+    proxy=
+fi
+
+docker build $proxy -t 0x2620/pandora-base base
+docker build -t 0x2620/pandora-nginx nginx
+cd ..
+docker build -t 0x2620/pandora .
--- a/docker/dot.env.sample.py
+++ b/docker/dot.env.sample.py
@ -0,0 +1,30 @@
+#!/usr/bin/python3
+import os
+from binascii import hexlify
+import string
+
+chars = string.ascii_letters + string.digits
+
+def pwgen(length=16):
+    return ''.join(chars[c % len(chars)] for c in os.urandom(length))
+
+
+print('''SECRET_KEY={SECRET_KEY}
+
+POSTGRES_USER=pandora
+POSTGRES_PASSWORD={POSTGRES_PASSWORD}
+
+RABBITMQ_DEFAULT_USER=pandora
+RABBITMQ_DEFAULT_PASS={RABBITMQ_PASSWORD}
+
+# required to send out password reset emails
+#EMAIL_HOST='example.com'
+#EMAIL_USER='mail@example.com'
+#EMAIL_PASSWORD='fixme'
+#EMAIL_PORT=587
+#EMAIL_TLS=true
+'''.format(
+    SECRET_KEY=hexlify(os.urandom(64)).decode(),
+    POSTGRES_PASSWORD=pwgen(),
+    RABBITMQ_PASSWORD=pwgen()
+))
--- a/docker/entrypoint.sh
+++ b/docker/entrypoint.sh
@ -0,0 +1,134 @@
+#!/bin/bash
+set -e
+
+action="$1"
+user=pandora
+
+export LANG=en_US.UTF-8
+mkdir -p /run/pandora
+chown -R ${user}.${user} /run/pandora
+
+# pan.do/ra services
+if [ "$action" = "pandora" ]; then
+    if [ ! -e /srv/pandora/initialized ]; then
+        echo "Setting up Pan.do/ra:"
+        echo "Waiting for database connection..."
+        /srv/pandora_base/docker/wait-for db 5432
+        echo "Installing pan.do/ra..."
+        rsync -a /srv/pandora_base/ /srv/pandora/
+
+        if [ ! -e /overlay/install.py ]; then
+            rsync -a /srv/pandora_base/docker/overlay/ /overlay/
+            if [ ! -e /overlay/config.jsonc ]; then
+                mv /srv/pandora/pandora/config.jsonc /overlay/config.jsonc
+            fi
+        fi
+        /overlay/install.py
+
+        echo "Initializing database..."
+        echo "CREATE EXTENSION pg_trgm;" | /srv/pandora/pandora/manage.py dbshell
+        /srv/pandora/pandora/manage.py init_db
+        /srv/pandora/update.py db
+        echo "Generating static files..."
+        /srv/pandora/update.py static
+        chown -R ${user}.${user} /srv/pandora/
+        touch /srv/pandora/initialized
+    fi
+    /srv/pandora_base/docker/wait-for db 5432
+    /srv/pandora_base/docker/wait-for rabbitmq 5672
+    cd /srv/pandora/pandora
+    exec /usr/bin/sudo -u $user -E -H \
+        /srv/pandora/bin/gunicorn wsgi:application -c gunicorn_config.py
+fi
+if [ "$action" = "encoding" ]; then
+    /srv/pandora_base/docker/wait-for-file /srv/pandora/initialized
+    /srv/pandora_base/docker/wait-for rabbitmq 5672
+    name=pandora-encoding-$(hostname)
+    exec /usr/bin/sudo -u $user -E -H \
+        /srv/pandora/bin/python \
+        /srv/pandora/pandora/manage.py \
+        celery worker \
+        -c 1 \
+        -Q encoding -n $name \
+        -l INFO
+fi
+if [ "$action" = "tasks" ]; then
+    /srv/pandora_base/docker/wait-for-file /srv/pandora/initialized
+    /srv/pandora_base/docker/wait-for rabbitmq 5672
+    name=pandora-default-$(hostname)
+    exec /usr/bin/sudo -u $user -E -H \
+        /srv/pandora/bin/python \
+        /srv/pandora/pandora/manage.py \
+        celery worker \
+        -Q default,celery -n $name \
+        --maxtasksperchild 1000 \
+        -l INFO
+fi
+if [ "$action" = "cron" ]; then
+    /srv/pandora_base/docker/wait-for-file /srv/pandora/initialized
+    /srv/pandora_base/docker/wait-for rabbitmq 5672
+    exec /usr/bin/sudo -u $user -E -H \
+        /srv/pandora/bin/python \
+        /srv/pandora/pandora/manage.py \
+        celerybeat -s /run/pandora/celerybeat-schedule \
+        --pidfile /run/pandora/cron.pid \
+        -l INFO
+fi
+if [ "$action" = "websocketd" ]; then
+    /srv/pandora_base/docker/wait-for-file /srv/pandora/initialized
+    /srv/pandora_base/docker/wait-for rabbitmq 5672
+    exec /usr/bin/sudo -u $user -E -H \
+        /srv/pandora/bin/python \
+        /srv/pandora/pandora/manage.py websocketd
+fi
+
+# pan.do/ra management and update
+if [ "$action" = "manage.py" ]; then
+    shift
+    exec /usr/bin/sudo -u $user -E -H \
+        /srv/pandora/pandora/manage.py "$@"
+fi
+if [ "$action" = "update.py" ]; then
+    shift
+    exec /usr/bin/sudo -u $user -E -H \
+        /srv/pandora/update.py "$@"
+fi
+if [ "$action" = "bash" ]; then
+    shift
+    cd /
+    exec /bin/bash "$@"
+fi
+
+# pan.do/ra setup hooks
+if [ "$action" = "docker-compose.yml" ]; then
+    cat /srv/pandora_base/docker-compose.yml | \
+        sed "s#build: \.#image: 0x2620/pandora:latest#g" | \
+        sed "s#\./overlay:#.:#g" | \
+        sed "s#build: docker/nginx#image: 0x2620/pandora-nginx:latest#g"
+    exit
+fi
+if [ "$action" = ".env" ]; then
+    exec /srv/pandora_base/docker/dot.env.sample.py
+fi
+if [ "$action" = "config.jsonc" ]; then
+    cat /srv/pandora_base/pandora/config.pandora.jsonc
+    exit
+fi
+if [ "$action" = "setup" ]; then
+    cat /srv/pandora_base/docker/setup-docker-compose.sh
+    exit
+fi
+
+# pan.do/ra info
+echo pan.do/ra docker container - https://pan.do/ra
+echo
+echo use this container with docker-compose,
+echo to setup a new docker-compose envrionment run:
+echo 
+echo "  mkdir <sitename> && cd <sitename>"
+echo "  docker run 0x2620/pandora setup | sh"
+echo
+echo adjust created files to match your needs and run:
+echo
+echo "  docker-compose up"
+echo
--- a/docker/install.sh
+++ b/docker/install.sh
@ -0,0 +1,68 @@
+#!/bin/bash
+export LANG=en_US.UTF-8
+PANDORA=${PANDORA-pandora}
+echo Installing pandora with user: $PANDORA
+getent passwd $PANDORA > /dev/null 2>&1 || adduser --disabled-password --gecos "" $PANDORA
+
+HOST=$(hostname -s)
+HOST_CONFIG="/srv/pandora/pandora/config.$HOST.jsonc"
+SITE_CONFIG="/srv/pandora/pandora/config.jsonc"
+test -e $HOST_CONFIG && cp $HOST_CONFIG $SITE_CONFIG
+test -e $SITE_CONFIG || cp /srv/pandora/pandora/config.pandora.jsonc $SITE_CONFIG
+
+cat > /srv/pandora/pandora/local_settings.py <<EOF
+import os
+
+SECRET_KEY = os.environ.get('SECRET_KEY')
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.postgresql_psycopg2',
+        'NAME': 'postgres',
+        'USER': os.environ.get('POSTGRES_USER'),
+        'PASSWORD': os.environ.get('POSTGRES_PASSWORD'),
+        'HOST': 'db',
+        'PORT': 5432,
+    }
+}
+BROKER_URL = "amqp://{0}:{1}@rabbitmq:5672//".format(os.environ.get('RABBITMQ_DEFAULT_USER'), os.environ.get('RABBITMQ_DEFAULT_PASS'))
+XACCELREDIRECT = True
+
+DEBUG = False
+TEMPLATE_DEBUG = DEBUG
+JSON_DEBUG = False
+DB_GIN_TRGM = True
+WEBSOCKET_ADDRESS = "0.0.0.0"
+
+EMAIL_HOST=os.environ.get('EMAIL_HOST')
+EMAIL_HOST_USER=os.environ.get('EMAIL_USER')
+EMAIL_HOST_PASSWORD=os.environ.get('EMAIL_PASSWORD')
+EMAIL_PORT=int(os.environ.get('EMAIL_PORT', 587))
+EMAIL_USE_TLS=os.environ.get('EMAIL_TLS', 'true').lower() == 'true'
+
+overlay_settings = 'overlay_settings.py'
+if os.path.exists(overlay_settings):
+    from overlay_settings import *
+EOF
+
+cp /srv/pandora/pandora/gunicorn_config.py.in /srv/pandora/pandora/gunicorn_config.py
+sed -i s/127.0.0.1/0.0.0.0/g /srv/pandora/pandora/gunicorn_config.py
+
+chown -R $PANDORA:$PANDORA /srv/pandora
+
+cd /srv/pandora
+./ctl init
+cp /srv/pandora/docker/entrypoint.sh /entrypoint.sh
+
+mv /srv/pandora/ /srv/pandora_base/
+mkdir /pandora
+ln -s /pandora /srv/pandora
+cat > /usr/local/bin/update.py << EOF
+#!/bin/sh
+exec /srv/pandora/update.py \$@
+EOF
+
+cat > /usr/local/bin/manage.py << EOF
+#!/bin/sh
+exec /srv/pandora/pandora/manage.py \$@
+EOF
+chmod +x /usr/local/bin/manage.py /usr/local/bin/update.py
--- a/docker/nginx/Dockerfile
+++ b/docker/nginx/Dockerfile
@ -0,0 +1,4 @@
+FROM nginx
+LABEL maintainer="0x2620@0x2620.org"
+ENV LANG en_US.UTF-8
+COPY nginx.conf /etc/nginx/nginx.conf
--- a/docker/nginx/nginx.conf
+++ b/docker/nginx/nginx.conf
@ -0,0 +1,96 @@
+worker_processes 4;
+
+events { worker_connections 1024; }
+
+http {
+    include mime.types;
+
+    sendfile on;
+    tcp_nopush on;
+    tcp_nodelay on;
+    keepalive_timeout 65;
+    types_hash_max_size 2048;
+    server_tokens off;
+
+    charset utf-8;
+    charset_types text/plain text/css application/json text/json application/x-javascript text/xml application/xml application/xml+rss text/javascript application/javascript text/x-js;
+
+    gzip  on;
+    gzip_static  on;
+    gzip_http_version 1.1;
+    gzip_vary on;
+    gzip_comp_level 6;
+    gzip_proxied any;
+    gzip_types text/plain text/css application/json text/json application/x-javascript text/xml application/xml application/xml+rss text/javascript application/javascript text/x-js;
+    gzip_buffers 16 8k;
+    gzip_disable "MSIE [1-6]\.(?!.*SV1)";
+
+    upstream pandora-web {
+        server pandora:2620;
+    }
+
+    upstream pandora-websocket {
+        server websocketd:2622;
+    }
+
+    server {
+
+        listen   80 default;
+
+        access_log  off;
+        error_log   /var/log/nginx/error.log;
+
+        location /favicon.ico {
+            root   /pandora/static;
+        }
+
+        location /static/ {
+            root   /pandora;
+            autoindex off;
+        }
+        location /data/ {
+            internal;
+            root   /pandora;
+        }
+
+        location /api/ws/ {
+                proxy_http_version 1.1;
+                proxy_set_header Host $http_host;
+                proxy_set_header Upgrade $http_upgrade;
+                proxy_set_header Connection "upgrade";
+                proxy_set_header Proxy "";
+                proxy_redirect off;
+                proxy_buffering off;
+                proxy_read_timeout 999999999;
+                proxy_pass http://pandora-websocket/;
+        }
+
+        location / {
+                proxy_set_header X-Forwarded-For $remote_addr;
+                proxy_set_header X-Forwarded-Proto http;
+                proxy_set_header Host $http_host;
+                proxy_set_header Proxy "";
+                proxy_redirect off;
+                proxy_buffering off;
+                proxy_read_timeout 90;    #should be in sync with gunicorn timeout
+                proxy_connect_timeout 90; #should be in sync with gunicorn timeout
+                if (!-f $request_filename) {
+                    proxy_pass http://pandora-web;
+                    break;
+                }
+                client_max_body_size 32m;
+        }
+
+        error_page  400  /;
+        error_page  404  /404.html;
+        location  /404.html {
+            root   /pandora/static/html;
+        }
+
+        # redirect server error pages to the static page /50x.html
+        error_page   500 502 503 504  /50x.html;
+        location  /50x.html {
+            root   /pandora/static/html;
+        }
+    }
+}
--- a/docker/overlay/init.py
+++ b/docker/overlay/init.py
--- a/docker/overlay/install.py
+++ b/docker/overlay/install.py
@ -0,0 +1,91 @@
+#!/usr/bin/python3
+
+import os
+from os.path import join, abspath, basename, dirname
+
+# change this
+name = 'placeholder'
+overwrite = (
+    #('home', 'indiancinema'),
+    #('infoView', 'indiancinema'),
+)
+
+base = abspath(dirname(__file__))
+os.chdir(base)
+
+for root, folders, files in os.walk(join(base, 'static')):
+    for f in files:
+        src = join(root, f)
+        target = src.replace(base, '/srv/pandora')
+        rel_src = os.path.relpath(src, dirname(target))
+        if os.path.exists(target):
+            os.unlink(target)
+        os.symlink(rel_src, target)
+
+if overwrite:
+    os.chdir('/srv/pandora/static/js')
+    for filename, sitename in overwrite:
+        src = '%s.%s.js' % (filename, sitename)
+        target = '%s.%s.js' % (filename, name)
+        if os.path.exists(target):
+            os.unlink(target)
+        os.symlink(src, target)
+
+os.chdir(base)
+src = join(base, 'config.jsonc')
+target = '/srv/pandora/pandora/config.%s.jsonc' % name
+rel_src = os.path.relpath(src, dirname(target))
+if os.path.exists(target):
+    os.unlink(target)
+os.symlink(rel_src, target)
+t = '/srv/pandora/pandora/config.jsonc'
+if os.path.exists(t):
+    os.unlink(t)
+os.symlink(basename(target), t)
+
+for root, folders, files in os.walk(join(base, 'scripts')):
+    for f in files:
+        src = join(root, f)
+        target = src.replace(base, '/srv/pandora')
+        rel_src = os.path.relpath(src, dirname(target))
+        if os.path.exists(target):
+            os.unlink(target)
+        os.symlink(rel_src, target)
+        if f == 'poster.%s.py' % name:
+            t = os.path.join(dirname(target), 'poster.py')
+            if os.path.exists(t):
+                os.unlink(t)
+            os.symlink(f, os.path.join(dirname(target), t))
+
+if os.path.exists('settings.py'):
+    target = os.path.join('/srv/pandora/pandora/overlay_settings.py',)
+    rel_src = os.path.relpath(os.path.join(base, 'settings.py'), dirname(target))
+    if os.path.exists(target):
+        os.unlink(target)
+    os.symlink(rel_src, target)
+
+if os.path.exists('__init__.py'):
+    # make module available to pandora
+    target = os.path.join('/srv/pandora/pandora/', name)
+    rel_src = os.path.relpath(base, dirname(target))
+    if os.path.exists(target):
+        os.unlink(target)
+    os.symlink(rel_src, target)
+
+    # include module in local settings
+    local_settings_py = '/srv/pandora/pandora/local_settings.py'
+    with open(local_settings_py) as fd:
+        local_settings_changed = False
+        local_settings = fd.read()
+        if 'LOCAL_APPS' not in local_settings:
+            local_settings += '\nLOCAL_APPS = ["%s"]\n' % name
+            local_settings_changed = True
+        else:
+            apps = re.compile('(LOCAL_APPS.*?)\]', re.DOTALL).findall(local_settings)[0]
+            if name not in apps:
+                new_apps = apps.strip() + ',\n"%s"\n' % name
+                local_settings = local_settings.replace(apps, new_apps)
+                local_settings_changed = True
+    if local_settings_changed:
+        with open(local_settings_py, 'w') as fd:
+            fd.write(local_settings)
--- a/docker/overlay/settings.py
+++ b/docker/overlay/settings.py
@ -0,0 +1 @@
+# local settings go here
--- a/docker/setup-docker-compose.sh
+++ b/docker/setup-docker-compose.sh
@ -0,0 +1,32 @@
+#!/bin/sh
+docker run 0x2620/pandora docker-compose.yml > docker-compose.yml
+if [ ! -e .env ]; then
+    docker run 0x2620/pandora .env > .env
+    echo .env >> .gitignore
+fi
+if [ ! -e config.jsonc ]; then
+    docker run 0x2620/pandora config.jsonc > config.jsonc
+fi
+cat > README.md << EOF
+pan.do/ra docker instance
+
+this folder was created with
+
+    docker run 0x2620/pandora setup | sh
+
+To start pan.do/ra adjust the files in this folder:
+
+ - add email configuration to .env
+ - adjust config.jsonc to customize pan.do/ra
+ - add local django settings to settings.py
+
+and to get started run this:
+
+    docker-compose up -d
+
+To update pan.do/ra run:
+
+    docker-compose run pandora update.py
+
+EOF
+touch __init__.py
--- a/docker/wait-for
+++ b/docker/wait-for
@ -0,0 +1,17 @@
+#!/bin/sh
+
+TIMEOUT=15
+
+HOST="$1"
+PORT="$2"
+
+for i in `seq $TIMEOUT` ; do
+    nc -z "$HOST" "$PORT" > /dev/null 2>&1
+    result=$?
+    if [ $result -eq 0 ] ; then
+      exit 0
+    fi
+    sleep 1
+done
+echo "Failed to connect to database at $HOST:$PORT" >&2
+exit 1
--- a/docker/wait-for-file
+++ b/docker/wait-for-file
@ -0,0 +1,12 @@
+#!/bin/sh
+TIMEOUT=60
+TARGET="$1"
+
+for i in `seq $TIMEOUT` ; do
+    if [ -e "$TARGET" ]; then
+        exit 0
+    fi
+    sleep 1
+done
+echo "Giving up waiting for file $TARGET" >&2
+exit 1