From 300c0de298a06a1621fc62480a85b54222b8741a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=CC=A6tefan=20Sa=CC=86ftescu?= <stefan@robots.ox.ac.uk>
Date: Tue, 22 Oct 2024 18:21:31 +0100
Subject: [PATCH] Wait for db when starting with docker-compose

Add `pg_isready` as a healthcheck on the `db` service, and conditioned the start of the `memorymaptoolkit` service on the `db` service being healthy. This prevents the mapping service starting before the database is ready to receive connections.
---
 docker-compose.yml | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/docker-compose.yml b/docker-compose.yml
index 08f89de..10fa5c0 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -18,6 +18,11 @@ services:
       - 5433:5432
     env_file:
       - .env
+    healthcheck:
+      test: [ "CMD-SHELL", "pg_isready" ]
+      interval: 10s
+      timeout: 5s
+      retries: 5
   memorymaptoolkit:
     image: memorymaptoolkit
     build:
@@ -29,7 +34,8 @@ services:
       - backups:/app/backups
       - .:/app
     depends_on:
-      - db
+      db:
+        condition: service_healthy
     command: python manage.py runserver 0.0.0.0:8000 --settings=memorymap_toolkit.settings.local
     ports:
       - 8000:8000
@@ -49,4 +55,4 @@ volumes:
   postgres_data:
   static:
   media:
-  backups:
\ No newline at end of file
+  backups: