From 93e63e3c9644b33e378740768ce3c4ad03032caa Mon Sep 17 00:00:00 2001
From: kompotkot <zenitsws@gmail.com>
Date: Thu, 2 Dec 2021 11:49:09 +0000
Subject: [PATCH] Wait script for docker compose

---
 backend/Dockerfile             |  2 +-
 backend/configs/docker_wait.sh | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)
 create mode 100755 backend/configs/docker_wait.sh

diff --git a/backend/Dockerfile b/backend/Dockerfile
index 64430872..fa529ace 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -3,7 +3,7 @@ FROM python:3.8-slim-buster
 # Update packages and
 # prepare alembic for docker compose setup
 RUN apt-get update && \
-    apt-get install -y libpq-dev gcc && \
+    apt-get install -y libpq-dev gcc curl && \
     rm -rf /var/lib/apt/lists/* && \
     pip3 install --no-cache-dir --upgrade pip setuptools && \
     pip3 install --no-cache-dir psycopg2-binary alembic
diff --git a/backend/configs/docker_wait.sh b/backend/configs/docker_wait.sh
new file mode 100755
index 00000000..86fd6d52
--- /dev/null
+++ b/backend/configs/docker_wait.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env sh
+
+set -e
+  
+HOST="$1"
+shift
+
+until curl --request GET --url "http://$HOST/ping"; do
+  >&2 echo "$HOST is unavailable, sleeping"
+  sleep 1
+done
+
+>&2 echo "$HOST is up"