It works! Maybe?

load-balancer-otel/Dockerfile

@@ -25,6 +25,10 @@ RUN apt-get update \
 
 COPY consul-template-config.hcl .
 COPY nginx.ctmpl /usr/templates/nginx.ctmpl
-COPY opentelemetry_module.conf /etc/nginx/conf.d
+COPY opentelemetry_module.conf /etc/nginx/conf.d/
+
+EXPOSE 80
+
+STOPSIGNAL SIGQUIT
 
 CMD ["dumb-init", "consul-template", "-config=consul-template-config.hcl"]

load-balancer-otel/consul-template-config.hcl

@@ -9,7 +9,7 @@ consul {
 }
 template {
   source      = "/usr/templates/nginx.ctmpl"
-  destination = "/etc/nginx/nginx.conf"
+  destination = "/etc/nginx/conf.d/default.conf"
   perms       = 0600
   command     = "if [ -e /var/run/nginx.pid ]; then nginx -s reload; else nginx; fi"
 }

load-balancer-otel/nginx.ctmpl

@@ -1,25 +1,13 @@
-load_module /opt/opentelemetry-webserver-sdk/WebServerModule/Nginx/1.23.1/ngx_http_opentelemetry_module.so;
-
-worker_processes  1;
-
-events {
-    worker_connections  1024;
+upstream messenger_service {
+{{- range service "messenger" }}
+  server {{ .Address }}:{{ .Port }};
+{{- end }}
+  # server backup1.example.com backup;
 }
-
-http {
-    keepalive_timeout  65;
-
-    upstream messenger_service {
-    {{- range service "messenger" }}
-      server {{ .Address }}:{{ .Port }};
-    {{- end }}
-      # server backup1.example.com  backup;
-    }
-    server {
-        listen       80;
-        server_name  localhost;
-        location / {
-          proxy_pass http://messenger_service;
-        }
-    }
+server {
+  listen 80;
+  server_name localhost;
+  location / {
+    proxy_pass http://messenger_service;
+  }
 }