Add default Docker backend image with docker compose and postgresql

Author: Aleksander Ambrozkiewicz

.env.example

@@ -0,0 +1,7 @@
+DJANGO_SETTINGS_MODULE=restauth.settings
+
+DEBUG=on
+ALLOWED_HOSTS=*
+SECRET_KEY=t6xm-!%va(qgw@)*4+sbnzyhk_&gc#s1r6!qy*=a9%u06rumy&
+
+DATABASE_URL=psql://postgres:postgres@db/postgres

.gitignore

@@ -2,4 +2,5 @@ __pycache__/
 *.py[cod]
 .idea/
 db.sqlite3
-.pytest_cache/
+.pytest_cache/
+.env

Dockerfile

@@ -0,0 +1,20 @@
+FROM python:3.7-alpine
+
+ENV PYTHONUNBUFFERED 1
+
+RUN apk update \
+    && apk add bash \
+    # psycopg2 dependencies
+    && apk add --virtual build-deps gcc python3-dev musl-dev \
+    && apk add postgresql-dev \
+    && apk add build-base linux-headers pcre-dev
+
+EXPOSE 3031
+WORKDIR /code
+COPY Pipfile Pipfile.lock ./
+RUN pip install --upgrade pip
+RUN pip install pipenv
+RUN pipenv install --system --dev
+COPY . .
+
+CMD ["./run-backend.sh"]

Pipfile

@@ -4,10 +4,10 @@ verify_ssl = true
 name = "pypi"
 
 [packages]
-Django = "==2.0.2"
-djangorestframework = "==3.7.7"
-djangorestframework-jwt = "==1.11.0"
-django-hashid-field = "==2.1.0"
+Django = "~=2.2"
+djangorestframework = "~=3.10"
+djangorestframework-jwt = "~=1.11"
+django-hashid-field = "~=2.1"
 dj-database-url = "*"
 
 [dev-packages]
@@ -18,4 +18,4 @@ pytest-django = "==3.1.2"
 django-rest-swagger = "*"
 
 [requires]
-python_version = "3.6"
+python_version = "3.7"

Pipfile.lock

@@ -0,0 +1,26 @@
+version: '3'
+
+services:
+  db:
+    image: postgres:9.6
+    ports:
+      - "5432:5432"
+    volumes:
+      - restauth_backend:/var/lib/postgresql/data
+
+  dev:
+    build: .
+    image: restauth_backend
+    command: "./wait-for-it.sh db:5432 -- python manage.py runserver 0:8000"
+    volumes:
+      - .:/code
+    ports:
+      - "8000:8000"
+    depends_on:
+      - "db"
+    restart: on-failure
+    env_file: .env
+
+volumes:
+  restauth_backend:
+    external: true

docker-compose.yml

@@ -8,13 +8,9 @@
 # Quick-start development settings - unsuitable for production
 # See https://docs.djangoproject.com/en/1.11/howto/deployment/checklist/
 
-# SECURITY WARNING: keep the secret key used in production secret!
-SECRET_KEY = '4y7c-7+bja2@e1$%d@6v+#dir%70!dc7!7_04e2r(d%4$g7+id'
-
-# SECURITY WARNING: don't run with debug turned on in production!
-DEBUG = True
-
-ALLOWED_HOSTS = []
+SECRET_KEY = os.environ.get('SECRET_KEY')
+DEBUG = os.environ.get('DEBUG')
+ALLOWED_HOSTS = list(filter(lambda s: len(s) > 0, map(str.strip, os.environ.get('ALLOWED_HOSTS').split(','))))
 
 
 # Application definition

restauth/settings.py

@@ -0,0 +1,177 @@
+#!/usr/bin/env bash
+#   Use this script to test if a given TCP host/port are available
+
+cmdname=$(basename $0)
+
+echoerr() { if [[ $QUIET -ne 1 ]]; then echo "$@" 1>&2; fi }
+
+usage()
+{
+    cat << USAGE >&2
+Usage:
+    $cmdname host:port [-s] [-t timeout] [-- command args]
+    -h HOST | --host=HOST       Host or IP under test
+    -p PORT | --port=PORT       TCP port under test
+                                Alternatively, you specify the host and port as host:port
+    -s | --strict               Only execute subcommand if the test succeeds
+    -q | --quiet                Don't output any status messages
+    -t TIMEOUT | --timeout=TIMEOUT
+                                Timeout in seconds, zero for no timeout
+    -- COMMAND ARGS             Execute command with args after the test finishes
+USAGE
+    exit 1
+}
+
+wait_for()
+{
+    if [[ $TIMEOUT -gt 0 ]]; then
+        echoerr "$cmdname: waiting $TIMEOUT seconds for $HOST:$PORT"
+    else
+        echoerr "$cmdname: waiting for $HOST:$PORT without a timeout"
+    fi
+    start_ts=$(date +%s)
+    while :
+    do
+        if [[ $ISBUSY -eq 1 ]]; then
+            nc -z $HOST $PORT
+            result=$?
+        else
+            (echo > /dev/tcp/$HOST/$PORT) >/dev/null 2>&1
+            result=$?
+        fi
+        if [[ $result -eq 0 ]]; then
+            end_ts=$(date +%s)
+            echoerr "$cmdname: $HOST:$PORT is available after $((end_ts - start_ts)) seconds"
+            break
+        fi
+        sleep 1
+    done
+    return $result
+}
+
+wait_for_wrapper()
+{
+    # In order to support SIGINT during timeout: http://unix.stackexchange.com/a/57692
+    if [[ $QUIET -eq 1 ]]; then
+        timeout $BUSYTIMEFLAG $TIMEOUT $0 --quiet --child --host=$HOST --port=$PORT --timeout=$TIMEOUT &
+    else
+        timeout $BUSYTIMEFLAG $TIMEOUT $0 --child --host=$HOST --port=$PORT --timeout=$TIMEOUT &
+    fi
+    PID=$!
+    trap "kill -INT -$PID" INT
+    wait $PID
+    RESULT=$?
+    if [[ $RESULT -ne 0 ]]; then
+        echoerr "$cmdname: timeout occurred after waiting $TIMEOUT seconds for $HOST:$PORT"
+    fi
+    return $RESULT
+}
+
+# process arguments
+while [[ $# -gt 0 ]]
+do
+    case "$1" in
+        *:* )
+        hostport=(${1//:/ })
+        HOST=${hostport[0]}
+        PORT=${hostport[1]}
+        shift 1
+        ;;
+        --child)
+        CHILD=1
+        shift 1
+        ;;
+        -q | --quiet)
+        QUIET=1
+        shift 1
+        ;;
+        -s | --strict)
+        STRICT=1
+        shift 1
+        ;;
+        -h)
+        HOST="$2"
+        if [[ $HOST == "" ]]; then break; fi
+        shift 2
+        ;;
+        --host=*)
+        HOST="${1#*=}"
+        shift 1
+        ;;
+        -p)
+        PORT="$2"
+        if [[ $PORT == "" ]]; then break; fi
+        shift 2
+        ;;
+        --port=*)
+        PORT="${1#*=}"
+        shift 1
+        ;;
+        -t)
+        TIMEOUT="$2"
+        if [[ $TIMEOUT == "" ]]; then break; fi
+        shift 2
+        ;;
+        --timeout=*)
+        TIMEOUT="${1#*=}"
+        shift 1
+        ;;
+        --)
+        shift
+        CLI=("$@")
+        break
+        ;;
+        --help)
+        usage
+        ;;
+        *)
+        echoerr "Unknown argument: $1"
+        usage
+        ;;
+    esac
+done
+
+if [[ "$HOST" == "" || "$PORT" == "" ]]; then
+    echoerr "Error: you need to provide a host and port to test."
+    usage
+fi
+
+TIMEOUT=${TIMEOUT:-15}
+STRICT=${STRICT:-0}
+CHILD=${CHILD:-0}
+QUIET=${QUIET:-0}
+
+# check to see if timeout is from busybox?
+# check to see if timeout is from busybox?
+TIMEOUT_PATH=$(realpath $(which timeout))
+if [[ $TIMEOUT_PATH =~ "busybox" ]]; then
+        ISBUSY=1
+        BUSYTIMEFLAG="-t"
+else
+        ISBUSY=0
+        BUSYTIMEFLAG=""
+fi
+
+if [[ $CHILD -gt 0 ]]; then
+    wait_for
+    RESULT=$?
+    exit $RESULT
+else
+    if [[ $TIMEOUT -gt 0 ]]; then
+        wait_for_wrapper
+        RESULT=$?
+    else
+        wait_for
+        RESULT=$?
+    fi
+fi
+
+if [[ $CLI != "" ]]; then
+    if [[ $RESULT -ne 0 && $STRICT -eq 1 ]]; then
+        echoerr "$cmdname: strict mode, refusing to execute subprocess"
+        exit $RESULT
+    fi
+    exec "${CLI[@]}"
+else
+    exit $RESULT
+fi