Add PROXY_CACHE_USE_STALE

Author: mhbahmani

deployments/s3_express/settings.s3express.example

@@ -20,3 +20,4 @@ PROXY_CACHE_INACTIVE=60m
 PROXY_CACHE_VALID_OK=1h
 PROXY_CACHE_VALID_NOTFOUND=1m
 PROXY_CACHE_VALID_FORBIDDEN=30s
+PROXY_CACHE_USE_STALE='error timeout http_500 http_502 http_503 http_504'

settings.example

@@ -20,4 +20,5 @@ PROXY_CACHE_INACTIVE=60m
 PROXY_CACHE_VALID_OK=1h
 PROXY_CACHE_VALID_NOTFOUND=1m
 PROXY_CACHE_VALID_FORBIDDEN=30s
+PROXY_CACHE_USE_STALE='error timeout http_500 http_502 http_503 http_504'
 STRIP_LEADING_DIRECTORY_PATH=/somepath

standalone_ubuntu_oss_install.sh

@@ -96,6 +96,7 @@ echo "Slice of slice for byte range requests: ${PROXY_CACHE_SLICE_SIZE}"
 echo "Proxy Caching Time for Valid Response: ${PROXY_CACHE_VALID_OK}"
 echo "Proxy Caching Time for Not Found Response: ${PROXY_CACHE_VALID_NOTFOUND}"
 echo "Proxy Caching Time for Forbidden Response: ${PROXY_CACHE_VALID_FORBIDDEN}"
+echo "Proxy Cache Using Stale: ${PROXY_CACHE_USE_STALE:-'error timeout http_500 http_502 http_503 http_504'}"
 echo "CORS Enabled: ${CORS_ENABLED}"
 echo "CORS Allow Private Network Access: ${CORS_ALLOW_PRIVATE_NETWORK_ACCESS}"
 

test/docker-compose.yaml

@@ -37,6 +37,7 @@ services:
       PROXY_CACHE_VALID_OK: "1h"
       PROXY_CACHE_VALID_NOTFOUND: "1m"
       PROXY_CACHE_VALID_FORBIDDEN: "30s"
+      PROXY_CACHE_USE_STALE: "error timeout http_500 http_502 http_503 http_504"
 
   minio:
     image: quay.io/minio/minio:RELEASE.2023-06-09T07-32-12Z