[+] add Dockerfile

Author: pashagolub

Dockerfile

@@ -0,0 +1,44 @@
+# When building an image it is recommended to provide version arguments, e.g.
+# docker build --no-cache -t cybertecpostgresql/pg_timetable:<tagname> \
+#     --build-arg COMMIT=`git show -s --format=%H HEAD` \
+#     --build-arg VERSION=`git describe --tags --abbrev=0` \
+#     --build-arg DATE=`git show -s --format=%cI HEAD` .
+FROM golang:alpine AS builder
+
+ARG LDFLAGS
+
+# Set necessary environmet variables needed for our image
+ENV GO111MODULE=on \
+    CGO_ENABLED=0 \
+    GOOS=linux \
+    GOARCH=amd64
+
+# Move to working directory /build
+WORKDIR /build
+
+# Copy and download dependency using go mod
+COPY go.mod .
+COPY go.sum .
+RUN go mod download
+
+# Copy the code into the container
+COPY . .
+
+# Build the application
+RUN go build -buildvcs=false \
+-ldflags="$LDFLAGS" \
+-o pg_etcd \
+./cmd/pg_etcd
+
+# Update certificates
+RUN apk update && apk upgrade && apk add --no-cache ca-certificates
+RUN update-ca-certificates
+
+FROM alpine
+
+# Copy the binary and certificates into the container
+COPY --from=builder /build/pg_etcd /
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+
+# Command to run the executable
+ENTRYPOINT ["/pg_etcd"]

Makefile

@@ -4,18 +4,22 @@
 
 # Build variables
 BINARY_NAME=pg_etcd
+DOCKER_IMAGE=cybertecpostgresql/$(BINARY_NAME)
 VERSION?=dev
 BUILD_DIR=.
-LDFLAGS=-ldflags="-X main.version=$(VERSION)"
+LDFLAGS:=-X main.version=$(VERSION) -X main.date=$(shell date -u +%Y-%m-%dT%H:%M:%SZ) -X main.commit=$(shell git rev-parse --short HEAD)
 
 # Default target
 .DEFAULT_GOAL := help
 
+foo:
+	@echo $(LDFLAGS)
+
 ## Build the binary
 build:
 	@echo "Building $(BINARY_NAME)..."
 	@mkdir -p $(BUILD_DIR)
-	@go build $(LDFLAGS) -o $(BUILD_DIR)/$(BINARY_NAME) ./cmd/pg_etcd
+	@go build -ldflags="$(LDFLAGS)" -o $(BUILD_DIR)/$(BINARY_NAME) ./cmd/pg_etcd
 
 ## Run tests
 test:
@@ -57,6 +61,20 @@ build-all:
 	@GOOS=darwin GOARCH=arm64 go build $(LDFLAGS) -o $(BUILD_DIR)/$(BINARY_NAME)-darwin-arm64 ./cmd/pg_etcd
 	@GOOS=windows GOARCH=amd64 go build $(LDFLAGS) -o $(BUILD_DIR)/$(BINARY_NAME)-windows-amd64.exe ./cmd/pg_etcd
 
+## Build Docker image
+docker-build:
+	@echo "Building Docker image..."
+	@docker build -t $(DOCKER_IMAGE):$(VERSION) --build-arg LDFLAGS="$(LDFLAGS)" .
+	@docker tag $(DOCKER_IMAGE):$(VERSION) $(DOCKER_IMAGE):latest
+	@echo "Docker image $(DOCKER_IMAGE):$(VERSION) built successfully."
+
+## Push Docker image to registry
+docker-push: docker-build
+	@echo "Pushing Docker image to registry..."
+	@docker push $(DOCKER_IMAGE):$(VERSION)
+	@docker push $(DOCKER_IMAGE):latest
+	@echo "Docker images pushed successfully."
+
 ## Run the binary (requires PostgreSQL and etcd)
 run: build
 	@echo "Running $(BINARY_NAME)..."