From 06657bf499ee7281dc9c4db939313d113387a616 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20M=C3=BCller?= <fmui@users.noreply.github.com>
Date: Sun, 7 Feb 2021 21:14:08 +0100
Subject: [PATCH] Add check if container memory is sufficient to install
 cluster (#67)

Fixes #66
---
 create-cluster-k3d.sh | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/create-cluster-k3d.sh b/create-cluster-k3d.sh
index 1d6c034..affccbb 100755
--- a/create-cluster-k3d.sh
+++ b/create-cluster-k3d.sh
@@ -4,6 +4,16 @@ set -o errexit
 SECONDS=0  
 REGISTRY_CONFIG=${1:-registries.yaml}
 
+# Check memory
+MEMORY=8192
+REQUIRED_MEMORY=$(expr $MEMORY \* 1024 \* 1024)
+DOCKER_MEMEORY=$(docker info --format '{{json .MemTotal}}')
+
+if (( $REQUIRED_MEMORY > $DOCKER_MEMEORY )); then
+    echo "Container memory in not sufficient. Please configure Docker to support containers with at least ${MEMORY} MB."
+    exit 1
+fi
+
 # Create docker network
 docker network create k3d-kyma || echo "k3d-kyma network already exists"