Dockerize application

.dockerignore

@@ -0,0 +1,8 @@
+.dockerignore
+.drone.yml
+.git*
+Dockerfile
+config.json
+data
+db.sqlite3
+matrix-pretix

.drone.yml

@@ -26,3 +26,16 @@ steps:
     when:
       event:
         - tag
+
+  - name: push
+    image: plugins/docker
+    settings:
+      auto_tag: yes
+      password:
+        from_secret: api_key
+      registry: git.luj0ga.de
+      repo: git.luj0ga.de/luca/matrix-prometheus
+      username: _
+    when:
+      event:
+        - tag

Dockerfile

@@ -0,0 +1,29 @@
+FROM golang:1.20 AS builder
+
+ARG DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && apt-get install -y libolm-dev
+
+WORKDIR /build
+
+COPY . .
+RUN go build -ldflags="-s -w" -o matrix-pretix -v .
+
+FROM debian:bullseye-slim
+
+ARG DEBIAN_FRONTEND=noninteractive
+
+RUN groupadd --gid 999 --system matrix-pretix && useradd --gid 999 --system --uid 999 matrix-pretix
+
+RUN apt-get update && apt-get install -y ca-certificates libolm3
+
+COPY --from=builder /build/matrix-pretix /usr/local/bin/matrix-pretix
+
+USER matrix-pretix
+
+VOLUME /data
+WORKDIR /data
+
+EXPOSE 8080
+
+CMD ["/usr/local/bin/matrix-pretix", "/config.json"]