Ensure we do not encounter a race condition which can occur when read…

…ing/writing to same file
bdwyertech · Dec 31, 2021 · 1b3a91b · 1b3a91b
1 parent 578f78d
commit 1b3a91b
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/docker-manifest/entrypoint.sh b/docker-manifest/entrypoint.sh
@@ -2,10 +2,14 @@
 # Magic to Provision the Container
 # Brian Dwyer - Intelligent Digital Services
 
+export AWS_REGION="${AWS_REGION:-$AWS_DEFAULT_REGION}"
+
 # Default to the AWS Resolver
-export RESOLVER=${RESOLVER:-'169.254.169.253'}
+export RESOLVER="${RESOLVER:-'169.254.169.253'}"
+
+envsubst '\$RESOLVER \$AWS_ACCOUNT \$AWS_REGION' < /etc/nginx/conf.d/default.conf > /tmp/config && mv /tmp/config /etc/nginx/conf.d/default.conf
 
-envsubst '\$RESOLVER \$AWS_ACCOUNT \$AWS_REGION' < /etc/nginx/conf.d/default.conf | tee /etc/nginx/conf.d/default.conf
+cat /etc/nginx/conf.d/default.conf
 
 # Create SSL Certificate
 if [ ! -f /etc/nginx/ssl/cert.pem ]; then