From 8f0a0381d330c856d2630f0a95123d3fe752e3d2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Esteban=20S=C3=A1nchez?= <esteban.sanchez@gmail.com>
Date: Sat, 24 Oct 2020 11:30:51 +0200
Subject: [PATCH] Get tag when it's a version release

---
 .github/workflows/docker.yml | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 3e7d3e9..64c0cc1 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -15,10 +15,16 @@ jobs:
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
-      
+
       - name: Extract branch name
         shell: bash
-        run: echo "##[set-output name=branch;]$(echo ${GITHUB_REF#refs/heads/})"
+        run: |
+          tag=${GITHUB_REF#refs/tags/}
+          tag=${tag#refs/heads/}
+          if echo $tag | grep -q -E "[0-9]+\.[0-9]+\.[0-9]+"; then
+            tag="v$tag"
+          fi
+          echo "##[set-output name=tag;]$tag"
         id: extract_branch
 
       - name: Login to DockerHub