From 8ed50a65266a90ca75ad8167da1378c7fe9b052a Mon Sep 17 00:00:00 2001
From: Aaron Bach <bachya1208@gmail.com>
Date: Tue, 23 Nov 2021 10:54:54 -0700
Subject: [PATCH] Add environment variable to configure Docker socket location
in image
---
Dockerfile | 1 +
README.md | 7 +++++++
haproxy.cfg | 2 +-
3 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/Dockerfile b/Dockerfile
index 87c545b..1a13d20 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -22,6 +22,7 @@ ENV ALLOW_RESTARTS=0 \
SECRETS=0 \
SERVICES=0 \
SESSION=0 \
+ SOCKET_PATH=/var/run/docker.sock \
SWARM=0 \
SYSTEM=0 \
TASKS=0 \
diff --git a/README.md b/README.md
index 2845fb0..44ca6aa 100644
--- a/README.md
+++ b/README.md
@@ -140,6 +140,13 @@ extremely critical but can expose some information that your service does not ne
- `TASKS`
- `VOLUMES`
+## Use a different Docker socket location
+
+If your OS stores its Docker socket in a different location, you can specify this via
+the `SOCKET_PATH` environment variable.
+
+For example, [balenaOS](https://www.balena.io/os/) exposes its socket at `/var/run/balena-engine.sock`. To accommodate this, merely set the `SOCKET_PATH` environment variable to `/var/run/balena-engine.sock`.
+
## Development
All the dependencies you need to develop this project (apart from Docker itself) are
diff --git a/haproxy.cfg b/haproxy.cfg
index 495ca7b..011137e 100644
--- a/haproxy.cfg
+++ b/haproxy.cfg
@@ -37,7 +37,7 @@ defaults
errorfile 504 /usr/local/etc/haproxy/errors/504.http
backend dockerbackend
- server dockersocket /var/run/docker.sock
+ server dockersocket $SOCKET_PATH
frontend dockerfrontend
bind :2375
--
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