Dockerfile

FROM golang:1.18.1-alpine3.15 AS builder

RUN apk add --no-cache ca-certificates

ENV CGO_ENABLED=0 GO111MODULE=on
WORKDIR /go/src/github.com/google/zoekt

# Cache dependencies
COPY go.mod go.sum ./
RUN go mod download

COPY . ./
ARG VERSION
RUN go install -ldflags "-X github.com/google/zoekt.Version=$VERSION" ./cmd/...

FROM alpine:3.15.0 AS zoekt

RUN apk update --no-cache && apk upgrade --no-cache && \
    apk add --no-cache git ca-certificates bind-tools tini jansson

COPY install-ctags-alpine.sh .
RUN ./install-ctags-alpine.sh && rm install-ctags-alpine.sh

COPY --from=builder /go/bin/* /usr/local/bin/

# zoekt-webserver has a large stable heap size (10s of gigs), and as such the
# default GOGC=100 could be better tuned. https://dave.cheney.net/tag/gogc
ENV GOGC=50

ENTRYPOINT ["/sbin/tini", "--"]