add dockerfile and CI pipeline

.woodpecker/deploy-docker.yml

@@ -0,0 +1,16 @@
+when:
+  event:
+    - push
+
+pipeline:
+  docker-deploy-push:
+    image: woodpeckerci/plugin-docker-buildx
+    settings:
+      dockerfile: Dockerfile
+      platforms: linux/arm/v7,linux/arm64/v8,linux/amd64,linux/ppc64le
+      repo: codeberg.org/lauralani/go-urlsh
+      registry: codeberg.org
+      tags: latest
+      username: lauralani
+      password:
+        from_secret: codeberg_token

Dockerfile

@@ -0,0 +1,29 @@
+FROM golang:1.20-alpine AS dev
+
+COPY . /var/app
+WORKDIR /var/app
+
+ENV GO111MODULE="on" \
+    CGO_ENABLED=0 \
+    GOOS=linux
+
+EXPOSE 80
+ENTRYPOINT ["sh"]
+
+
+FROM dev as build
+
+RUN go mod download && go mod verify
+RUN go build -o go-urlsh main.go
+RUN chmod +x go-urlsh
+
+
+FROM scratch AS prod
+
+WORKDIR /var/app
+COPY --from=build /var/app/go-urlsh /var/app/
+COPY --from=build /var/app/web /var/app/web
+
+EXPOSE 80
+ENTRYPOINT ["/var/app/go-urlsh"]
+CMD ""