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FILE / ScuroNeko/mtg
Dockerfile
Исходный файл и его история в репозитории.
9seconds
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This helps with a situation when some applications do not allow mounting individual files, but whole directories. In that case users could mount `/config` directory with a single file, `config.toml`: `-v /path/to/dir:/config`. Also, there is a backward compatibility to using a single `/config.toml`
57 lines
1.6 KiB
Docker
57 lines
1.6 KiB
Docker
###############################################################################
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# BUILD STAGE
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FROM golang:1.26-alpine AS build
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ENV CGO_ENABLED=0
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# this is done for backward compatibility: before that we mounted a config
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# into /config.toml. Some application allow mounting directories only,
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# so it makes problems. So, instead we are going to do 2 steps:
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# 1. Create /config/config.toml as a symlink to /config.toml
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# 2. Force /mtg to use /config/config.toml
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#
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# it helps in both ways: users with directories could use /config directory
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# and overlap a symlink by their bind mount. Old users could continue using
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# /config.toml as a real config.
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RUN set -x \
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&& mkdir -p /config \
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&& ln -sv /config.toml /config/config.toml
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RUN --mount=type=cache,target=/var/cache/apk \
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set -x \
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&& apk --update add \
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bash \
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ca-certificates \
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git
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COPY go.mod go.sum /app/
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WORKDIR /app
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RUN go mod download
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COPY . /app
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RUN set -x \
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&& version="$(git describe --exact-match HEAD 2>/dev/null || git describe --tags --always)" \
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&& go build \
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-trimpath \
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-mod=readonly \
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-ldflags="-extldflags '-static' -s -w -X 'main.version=$version'" \
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-a \
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-tags netgo
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###############################################################################
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# PACKAGE STAGE
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FROM scratch
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ENTRYPOINT ["/mtg"]
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CMD ["run", "/config/config.toml"]
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COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
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COPY --from=build /app/mtg /mtg
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COPY --from=build /app/example.config.toml /config.toml
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COPY --from=build /config /config
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