feat: add Dockerfile (#11)

Author: Swop

.dockerignore

@@ -0,0 +1,12 @@
+.git
+.idea
+dist/
+.github/
+Dockerfile
+e2e/
+
+# Deployment-related
+kubernetes/
+hack/
+secrets/
+apps.yaml

Dockerfile

@@ -0,0 +1,40 @@
+## Build
+FROM golang:1.19-alpine AS build
+
+ARG MODULE_NAME=github.com/ankorstore/gh-action-mq-lease-service
+ARG BIN_NAME=server
+
+ARG SHA
+ARG TAG_NAME
+ARG BUILD_DATE
+
+
+ENV CGO_ENABLED=0
+ENV GOOS=linux
+ENV GOARCH=amd64
+
+WORKDIR /src
+COPY go.mod go.sum ./
+RUN go mod download
+RUN go mod tidy
+
+COPY . .
+
+RUN go build \
+    -ldflags '-X "$MODULE_NAME/internal/version.name=$BIN_NAME" -X "$MODULE_NAME/internal/version.commit=$SHA" -X "$MODULE_NAME/internal/version.date=$BUILD_DATE" -X "$MODULE_NAME/internal/version.tag=$TAG_NAME"' \
+    -o /server \
+    ./cmd/server/main.go
+
+## Deploy
+FROM busybox:1.36.0-uclibc as busybox
+FROM gcr.io/distroless/base-debian10
+
+WORKDIR /
+COPY --from=build /server /server
+# we use busybox and copy sh binary here to be able to do envvar interpolation in the entrypoint command (for log-level)
+# so that it will be easy to override with a k8s envvar if we want to have debug logs without having to rebuild/deploy the app
+COPY --from=busybox /bin/sh /bin/sh
+
+EXPOSE 8080
+
+ENTRYPOINT /server -config=/config.yaml -log-json=true -log-debug=$LOG_DEBUG -port=8080