Added: Dockerfile, support for configurations from env

Dockerfile

@@ -0,0 +1,29 @@
+FROM golang:1.25.5-alpine3.23 as build
+
+RUN apk add --no-cache git ca-certificates tzdata
+
+WORKDIR /58team_blog
+COPY go.mod go.sum ./
+
+RUN go mod download
+
+COPY . .
+RUN GOOS=linux GOARCH=amd64 go build -ldflags "-s -w" -o /blog ./cmd/main.go
+
+FROM alpine:3.23 AS deploy
+
+WORKDIR /58team_blog
+
+RUN addgroup -g 1001 -S appuser && \
+    adduser -u 1001 -S appuser -G appuser
+
+COPY --from=build /blog /blog
+
+RUN chown -R appuser:appuser /blog
+
+USER appuser
+
+EXPOSE 8080
+EXPOSE 5432
+
+CMD ["/blog"]