From b986944def2a1e9fedc0e9f04e2aaea69bd4a115 Mon Sep 17 00:00:00 2001
From: Grant Slater <github@firefishy.com>
Date: Tue, 2 Jul 2024 23:54:55 +0100
Subject: [PATCH] imagery: update backend method

---
 cookbooks/imagery/recipes/tiler.rb                         | 1 +
 cookbooks/imagery/templates/default/nginx_titiler.conf.erb | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/cookbooks/imagery/recipes/tiler.rb b/cookbooks/imagery/recipes/tiler.rb
index 1b86ef6f0..d56357d62 100644
--- a/cookbooks/imagery/recipes/tiler.rb
+++ b/cookbooks/imagery/recipes/tiler.rb
@@ -42,6 +42,7 @@ podman_service "titiler" do
   environment :BIND                                => "unix:/sockets/titiler.sock",
               :WORKERS_PER_CORE                    => 1,
               :GDAL_CACHEMAX                       => 200,
+              :GDAL_BAND_BLOCK_CACHE               => "HASHSET",
               :GDAL_DISABLE_READDIR_ON_OPEN        => "EMPTY_DIR",
               :GDAL_INGESTED_BYTES_AT_OPEN         => 32768,
               :GDAL_HTTP_MERGE_CONSECUTIVE_RANGES  => "YES",
diff --git a/cookbooks/imagery/templates/default/nginx_titiler.conf.erb b/cookbooks/imagery/templates/default/nginx_titiler.conf.erb
index 191ee495f..ea48a0cec 100644
--- a/cookbooks/imagery/templates/default/nginx_titiler.conf.erb
+++ b/cookbooks/imagery/templates/default/nginx_titiler.conf.erb
@@ -15,6 +15,10 @@ server {
     }
 }
 
+upstream titiler_api_backend {
+    server unix:/srv/imagery/sockets/titiler.sock max_fails=0;
+}
+
 server {
     listen 443 ssl http2;
     listen [::]:443 ssl http2;
@@ -46,7 +50,7 @@ server {
 
     location /api/v1/titiler {
       rewrite ^/api/v1/titiler(.*)$ $1 break;
-      proxy_pass unix:/srv/imagery/sockets/titiler.sock;
+      proxy_pass http://titiler_api_backend
       proxy_set_header Host $host;
       proxy_set_header Referer $http_referer;
       proxy_set_header X-Forwarded-For $remote_addr;
-- 
2.39.5