From 1f4aac8dc22657299e8b6550cd0ae859a1a976fd Mon Sep 17 00:00:00 2001
From: "Quentin McGaw (laptop)" <quentin.mcgaw@gmail.com>
Date: Sun, 1 Aug 2021 15:19:45 -0400
Subject: [PATCH] Doc: build the image section

---
 docker/README.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/docker/README.md b/docker/README.md
index 797496f4..81f9e3ed 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -57,6 +57,20 @@ ## Update
 
 You can therefore pull the image with `docker pull 2fauth/2fauth` and restart the container to update it.
 
+## Build the image
+
+You can build the image from the `master` branch with `docker` and `git` using:
+
+```sh
+docker build -t 2fauth/2fauth https://github.com/Bubka/2FAuth.git
+```
+
+You can also build a specific commit (see [master's commits](https://github.com/Bubka/2FAuth/commits/master)) by appending the commit hash with `#<commit-hash>` to the command. For example:
+
+```sh
+docker build -t 2fauth/2fauth https://github.com/Bubka/2FAuth.git#fba9e29bd4e3bb697296bb0bde60ae869537528b
+```
+
 ## Implementation details
 
 - The container is based on `debian:buster-slim`