docker: Add startup script

Add docker script to run `alembic upgrade head` before running application. Will be useful for making CI work when changes to Data Structures are needed.

.gitignore

@@ -3,4 +3,5 @@ __pycache__
 venv/
 .venv
 .vscode
-env
+env
+.idea/

docker/Dockerfile

@@ -12,6 +12,9 @@ WORKDIR /app
 COPY requirements.txt .
 RUN pip install -r requirements.txt
 
+# Copy startup script
+COPY docker/startup.sh .
+
 # Copy application
 COPY . .
 
@@ -27,10 +30,6 @@ ENV     CONTAINER_PORT=5000 \
 
 EXPOSE ${CONTAINER_PORT}
 
-# Setup Database
-
-RUN alembic upgrade head
-
 # run gunicorn
-CMD ["sh", "-c", "gunicorn --bind ${BIND_INTERFACE}:${CONTAINER_PORT} --graceful-timeout ${GRACEFUL_TIMEOUT} --timeout ${TIMEOUT} --worker-class=uvicorn.workers.UvicornWorker --worker-connections ${WORKER_CONNECTIONS} --workers ${WORKERS} wsgi-service:app"]
+CMD ["sh", "./startup.sh"]
 

docker/startup.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+# rald-server startup script
+
+check_env_variable() {
+  if [ -z $1 ]; then
+    echo "$2 environment variable not set";
+    exit 1
+  fi
+  echo "$2 -> $1"
+}
+
+echo "staring up rald-server..."
+
+echo "Checking environment variales:"
+check_env_variable $BIND_INTERFACE "BIND_INTERFACE"
+check_env_variable $CONTAINER_PORT "CONTAINER_PORT"
+check_env_variable $GRACEFUL_TIMEOUT "GRACEFUL_TIMEOUT"
+check_env_variable $TIMEOUT "TIMEOUT"
+check_env_variable $WORKER_CONNECTIONS "WORKER_CONNECTIONS"
+check_env_variable $WORKERS "WORKERS"
+
+cd /app
+alembic upgrade head
+gunicorn --bind ${BIND_INTERFACE}:${CONTAINER_PORT} --graceful-timeout ${GRACEFUL_TIMEOUT} --timeout ${TIMEOUT} --worker-class=uvicorn.workers.UvicornWorker --worker-connections ${WORKER_CONNECTIONS} --workers ${WORKERS} wsgi-service:app