Adds Dockerfile

Dockerfile

@@ -0,0 +1,27 @@
+# Step 1 - Build Container
+####
+FROM golang:alpine AS builder
+
+COPY . /go/src/app
+
+WORKDIR /go/src/app
+
+RUN apk add --no-cache git && \
+    git config --global --add safe.directory /go/src/app && \
+    GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -v -ldflags="-s -w" -tags timetzdata -o ifire ./
+
+# Step 2 - Running Container
+####
+FROM alpine:latest
+
+LABEL org.opencontainers.image.title="Is the internet on fire?"
+
+RUN addgroup -S -g 1000 app && \
+    adduser --disabled-password -G app --gecos "application account" --home "/home/app" --shell "/sbin/nologin" --uid 1000 app && \
+    apk add --no-cache bind-tools
+COPY --from=builder --chown=app:app /go/src/app/ifire /usr/local/bin/ifire
+
+USER app:app
+WORKDIR /home/app
+
+ENTRYPOINT ["/bin/sh", "-c", "ifire"]