30 lines
1.5 KiB
Docker
30 lines
1.5 KiB
Docker
# syntax=docker/dockerfile:1.7
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FROM golang:1.25-alpine AS build
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WORKDIR /src
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ARG VERSION=dev
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ARG COMMIT=dev
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ARG BUILD_DATE=unknown
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COPY go.mod ./
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RUN --mount=type=cache,target=/go/pkg/mod go mod download
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COPY . .
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RUN test -f ./cmd/dockwatch/main.go && test -f ./internal/stacks/stacks.go && test -f ./web/embed.go || \
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(echo "ERROR: required source files are missing from Docker build context; check .dockerignore" >&2; exit 1)
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# Keep the module graph in sync with the actual source tree. This is required for
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# Go 1.17+ module graph pruning when transitive dependencies must be recorded as
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# indirect requirements in go.mod. The project intentionally has no vendored deps.
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RUN --mount=type=cache,target=/go/pkg/mod \
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go mod tidy
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RUN --mount=type=cache,target=/go/pkg/mod --mount=type=cache,target=/root/.cache/go-build \
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CGO_ENABLED=0 GOOS=linux go build -trimpath \
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-ldflags="-s -w -X git.send.nrw/sendnrw/dockwatch/internal/buildinfo.Version=${VERSION} -X git.send.nrw/sendnrw/dockwatch/internal/buildinfo.Commit=${COMMIT} -X git.send.nrw/sendnrw/dockwatch/internal/buildinfo.Date=${BUILD_DATE}" \
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-o /out/dockwatch ./cmd/dockwatch
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FROM docker:cli
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ENV DOCKER_CONFIG=/data/docker-config
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RUN apk add --no-cache ca-certificates tzdata git openssh-client acl
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COPY --from=build /out/dockwatch /usr/local/bin/dockwatch
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VOLUME ["/data","/stacks"]
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EXPOSE 8080
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HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 CMD wget -q -O /dev/null http://127.0.0.1:8080/healthz || exit 1
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ENTRYPOINT ["/usr/local/bin/dockwatch"]
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