From b6808165052c7405842cc17783060a3dc5b16509 Mon Sep 17 00:00:00 2001
From: Sami Jawhar <sami.n.jawhar@gmail.com>
Date: Wed, 8 Feb 2017 16:39:54 -0800
Subject: [PATCH 1/2] Compose v3: Moved shared volume to top-level volumes
 entry

For compatibility for Docker Compose v3, replaced the unnamed volume in the nginx service with a named nginx_conf volume that is shared by both services.
---
 docker-compose-separate-containers.yml | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/docker-compose-separate-containers.yml b/docker-compose-separate-containers.yml
index a4edb94..18b1e46 100644
--- a/docker-compose-separate-containers.yml
+++ b/docker-compose-separate-containers.yml
@@ -1,4 +1,4 @@
-version: '2'
+version: '3'
 services:
   nginx:
     image: nginx
@@ -6,18 +6,20 @@ services:
     ports:
       - "80:80"
     volumes:
-      - /etc/nginx/conf.d
+      - nginx_conf:/etc/nginx/conf.d
 
   dockergen:
     image: jwilder/docker-gen
     command: -notify-sighup nginx -watch /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf
-    volumes_from:
-      - nginx
     volumes:
       - /var/run/docker.sock:/tmp/docker.sock:ro
       - ./nginx.tmpl:/etc/docker-gen/templates/nginx.tmpl
+      - nginx_conf:/etc/nginx/conf.d
 
   whoami:
     image: jwilder/whoami
     environment:
       - VIRTUAL_HOST=whoami.local
+
+volumes:
+  nginx_conf: {}

From d85c033f6166246ca15f28c51c18e957dcb51131 Mon Sep 17 00:00:00 2001
From: Sami Jawhar <sami.n.jawhar@gmail.com>
Date: Wed, 12 Apr 2017 05:39:35 -0700
Subject: [PATCH 2/2] Set compose file version back to 2.1 for separate
 containers

---
 docker-compose-separate-containers.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docker-compose-separate-containers.yml b/docker-compose-separate-containers.yml
index 18b1e46..90230e0 100644
--- a/docker-compose-separate-containers.yml
+++ b/docker-compose-separate-containers.yml
@@ -1,4 +1,4 @@
-version: '3'
+version: '2.1'
 services:
   nginx:
     image: nginx