From 74164c226695827638a7593837b15b070b6e1d7a Mon Sep 17 00:00:00 2001
From: Kilian Ciuffolo <kilian.ciuffolo@gmail.com>
Date: Thu, 25 Jun 2015 15:17:28 -0700
Subject: [PATCH 1/3] added DOKKU_DOCKERFILE_START_CMD support

---
 dokku | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/dokku b/dokku
index 6316a5a5e..8f49997e7 100755
--- a/dokku
+++ b/dokku
@@ -89,7 +89,11 @@ case "$1" in
         BIND_EXTERNAL=$(pluginhook bind-external-ip $APP)
 
         [[ -n "$DOKKU_BUILDSTEP" ]] && START_CMD="/start $PROC_TYPE"
-        [[ -z "$DOKKU_BUILDSTEP" ]] && DOKKU_DOCKERFILE_PORT=$(dokku config:get $APP DOKKU_DOCKERFILE_PORT || true)
+
+        if [[ -z "$DOKKU_BUILDSTEP" ]];then
+          DOKKU_DOCKERFILE_PORT=$(dokku config:get $APP DOKKU_DOCKERFILE_PORT || true)
+          START_CMD=$(dokku config:get $APP DOKKU_DOCKERFILE_START_CMD)
+        fi
 
         if [[ "$BIND_EXTERNAL" = "false" ]] && [[ "$PROC_TYPE" == "web" ]];then
           port=${DOKKU_DOCKERFILE_PORT:=5000}

From 4a4ae9cb71a191e40f0561c6adbea509c70653b2 Mon Sep 17 00:00:00 2001
From: Kilian Ciuffolo <kilian.ciuffolo@gmail.com>
Date: Thu, 25 Jun 2015 18:05:03 -0700
Subject: [PATCH 2/3] not fail if DOKKU_DOCKERFILE_START_CMD is not set

---
 dokku | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dokku b/dokku
index 8f49997e7..8df8756d5 100755
--- a/dokku
+++ b/dokku
@@ -92,7 +92,7 @@ case "$1" in
 
         if [[ -z "$DOKKU_BUILDSTEP" ]];then
           DOKKU_DOCKERFILE_PORT=$(dokku config:get $APP DOKKU_DOCKERFILE_PORT || true)
-          START_CMD=$(dokku config:get $APP DOKKU_DOCKERFILE_START_CMD)
+          START_CMD=$(dokku config:get $APP DOKKU_DOCKERFILE_START_CMD || $START_CMD)
         fi
 
         if [[ "$BIND_EXTERNAL" = "false" ]] && [[ "$PROC_TYPE" == "web" ]];then

From 5ced063d3d216b2b410a5647f3203ebae06a3ff3 Mon Sep 17 00:00:00 2001
From: Kilian Ciuffolo <kilian.ciuffolo@gmail.com>
Date: Thu, 2 Jul 2015 17:47:58 -0700
Subject: [PATCH 3/3] added docs

---
 docs/application-deployment.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/docs/application-deployment.md b/docs/application-deployment.md
index 11ab783c1..7cb332b20 100644
--- a/docs/application-deployment.md
+++ b/docs/application-deployment.md
@@ -56,6 +56,20 @@ Deployment of `Dockerfile` repos is supported as of v0.3.15. Simply place a Dock
 
 By default, we will extract the first `EXPOSE` port and tell nginx to proxy your app to that port. Alternatively, you can set `$DOCKERFILE_PORT` in your app's dokku configuration.
 
+By default no arguments are passed to `docker run` when deploying the container and the `CMD` or `ENTRYPOINT` defined in the `Dockerfile` are executed. You can take advantage of docker ability of overriding the `CMD` or passing parameters to your `ENTRYPOINT` setting `$DOKKU_DOCKERFILE_START_CMD`. Let's say for example you are deploying a base nodejs image, with the following `ENTRYPOINT`:
+
+```
+ENTRYPOINT ["node"]
+```
+
+You can do:
+
+```
+dokku config:set DOKKU_DOCKERFILE_START_CMD="--harmony server.js"
+```
+
+To tell docker what to run.
+
 Setting `$DOKKU_DOCKERFILE_CACHE_BUILD` to `true` or `false` will enable or disable docker's image layer cache. Lastly, for more granular build control, you may also pass any `docker build` option to `docker`, by setting `$DOKKU_DOCKER_BUILD_OPTS`.
 
 ## Default vhost