Initial release

Dockerfile

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+FROM golang:alpine AS builder
+RUN apk update && apk add --no-cache git && adduser -D -g '' gopher && apk add -U --no-cache ca-certificates
+WORKDIR /app/
+ADD go.mod go.sum ./
+RUN go mod download
+ADD . .
+RUN GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -ldflags="-w -s" -o tweetsvg main.go
+
+FROM scratch
+
+ENV ACCESS_TOKEN=
+ENV ACCESS_TOKEN_SECRET=
+ENV CONSUMER_KEY=
+ENV CONSUMER_SECRET=
+
+WORKDIR /app/
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=builder /etc/passwd /etc/passwd
+COPY --from=builder /app/tweetsvg /app/tweetsvg
+USER gopher
+
+ENTRYPOINT ["/app/tweetsvg"]