From 82c0071e80afa83c88403c2979139489bf3bc7e0 Mon Sep 17 00:00:00 2001
From: Joachim Bauch <bauch@struktur.de>
Date: Tue, 26 Apr 2022 14:50:49 +0200
Subject: [PATCH 1/2] CI: Build docker image.

---
 .github/workflows/docker.yml | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 .github/workflows/docker.yml

diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
new file mode 100644
index 0000000..71ff841
--- /dev/null
+++ b/.github/workflows/docker.yml
@@ -0,0 +1,22 @@
+name: Docker image
+
+on:
+  pull_request:
+    branches: [ master ]
+  push:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Build Docker image
+        uses: docker/build-push-action@v2
+        with:
+          context: .

From ccb1a724b887ac7851b21d5a1868c5c23b6b8260 Mon Sep 17 00:00:00 2001
From: Joachim Bauch <bauch@struktur.de>
Date: Tue, 26 Apr 2022 14:54:06 +0200
Subject: [PATCH 2/2] docker: Build with Golang 1.18

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

diff --git a/Dockerfile b/Dockerfile
index 2fdd97b..d4e1981 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.16 AS builder
+FROM golang:1.18 AS builder
 
 WORKDIR /workdir