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The Dockerfile lint and build stages and Dockerfile.lint each carried their own apk add list, a copy of what script/bootstrap installs. They now copy script/, go.mod and go.sum and run script/bootstrap, so that layer is reused until one of those changes. script/bootstrap gains a C compiler check: the golang image has none, and cgo needs one. The build adds -trimpath and -s -w; CGO_ENABLED=1 stays, as govips links libvips. ARG VERSION moves to just above the build, so a new version reruns neither script/bootstrap nor the tests. Model: opus-5-5
94 lines
3.0 KiB
Docker
94 lines
3.0 KiB
Docker
# Lint stage
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# Same image as Dockerfile.lint: change both pins together.
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# golangci/golangci-lint:v2.12.2-alpine, 2026-08-07
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FROM golangci/golangci-lint:v2.12.2-alpine@sha256:91b27804074a0bacea298707f016911e60cf0cdbc6c7bf5ccacb5f0606d18d60 AS lint
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WORKDIR /src
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# script/bootstrap installs the build dependencies and downloads the Go
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# modules. Only script/, go.mod and go.sum are copied first, so this
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# layer is reused until one of them changes.
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COPY script/ ./script/
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COPY go.mod go.sum ./
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RUN script/bootstrap
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# Copy source code
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COPY . .
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# Tells script/lint it is inside a container, so it runs the linter.
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ENV container=docker
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# Run formatting check and linter
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RUN make fmt-check
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RUN make lint
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# Build stage
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# golang:1.25.4-alpine, 2026-02-25
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FROM golang:1.25.4-alpine@sha256:d3f0cf7723f3429e3f9ed846243970b20a2de7bae6a5b66fc5914e228d831bbb AS builder
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# Depend on lint stage passing
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COPY --from=lint /src/go.sum /dev/null
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WORKDIR /src
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# Build dependencies and Go modules, as in the lint stage
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COPY script/ ./script/
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COPY go.mod go.sum ./
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RUN script/bootstrap
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# Copy source code
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COPY . .
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# Run tests
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RUN make test
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# VERSION is declared here, not earlier: a new value reruns only the
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# build, not script/bootstrap or the tests. CGO stays enabled for
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# govips; -trimpath keeps build paths out of the binary, and -s -w
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# leave out the symbol table and debug information.
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ARG VERSION=dev
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RUN CGO_ENABLED=1 GOTOOLCHAIN=auto go build -trimpath \
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-ldflags "-s -w -X main.Version=${VERSION}" \
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-o /pixad ./cmd/pixad
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# Runtime stage
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# alpine:3.21, 2026-02-25
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FROM alpine:3.21@sha256:c3f8e73fdb79deaebaa2037150150191b9dcbfba68b4a46d70103204c53f4709
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# Install runtime dependencies only
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RUN apk add --no-cache \
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vips \
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libheif \
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ca-certificates \
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tzdata \
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su-exec
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# Copy binary from builder
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COPY --from=builder /pixad /usr/local/bin/pixad
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COPY deploy/docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
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# Create non-root user, config directory, and data directory. pixad
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# gets uid and gid 65532, which host login and system accounts do not
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# use: a bind-mounted /var/lib/pixa is given to pixad, and on the host
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# it must not belong to a person's account.
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RUN addgroup -g 65532 pixad && \
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adduser -D -H -s /sbin/nologin -u 65532 -G pixad pixad && \
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mkdir -p /var/lib/pixa /etc/pixa && \
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chown pixad:pixad /var/lib/pixa
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# No USER: the entrypoint must start as root to give a bind-mounted
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# /var/lib/pixa to pixad; it then runs the server as pixad.
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WORKDIR /var/lib/pixa
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EXPOSE 8080
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# Shell form so the probe follows PORT; a port set only in a mounted
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# config file is not seen here.
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HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
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CMD wget --spider -q "http://localhost:${PORT:-8080}/.well-known/healthcheck.json" || exit 1
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# Settings come from PORT and the PIXA_ environment variables; only
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# PIXA_SIGNING_KEY is required. A config file mounted at
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# /etc/pixa/config.yml is optional and is read when present.
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ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]
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