mirror of
https://github.com/tarampampam/error-pages.git
synced 2024-08-30 18:22:40 +00:00
77 lines
2.3 KiB
Docker
77 lines
2.3 KiB
Docker
# syntax=docker/dockerfile:1.2
|
|
|
|
# Image page: <https://hub.docker.com/_/golang>
|
|
FROM golang:1.17.1-alpine as builder
|
|
|
|
# can be passed with any prefix (like `v1.2.3@GITHASH`), e.g.: `docker build --build-arg "APP_VERSION=v1.2.3@GITHASH" .`
|
|
ARG APP_VERSION="undefined@docker"
|
|
|
|
WORKDIR /src
|
|
|
|
COPY . .
|
|
|
|
# arguments to pass on each go tool link invocation
|
|
ENV LDFLAGS="-s -w -X github.com/tarampampam/error-pages/internal/version.version=$APP_VERSION"
|
|
|
|
RUN set -x \
|
|
&& go version \
|
|
&& CGO_ENABLED=0 go build -trimpath -ldflags "$LDFLAGS" -o ./error-pages ./cmd/error-pages/ \
|
|
&& ./error-pages version \
|
|
&& ./error-pages -h
|
|
|
|
WORKDIR /tmp/rootfs
|
|
|
|
# prepare rootfs for runtime
|
|
RUN set -x \
|
|
&& mkdir -p \
|
|
./etc \
|
|
./bin \
|
|
./opt/html \
|
|
&& echo 'appuser:x:10001:10001::/nonexistent:/sbin/nologin' > ./etc/passwd \
|
|
&& echo 'appuser:x:10001:' > ./etc/group \
|
|
&& mv /src/error-pages ./bin/error-pages \
|
|
&& mv /src/templates ./opt/templates \
|
|
&& mv /src/error-pages.yml ./opt/error-pages.yml
|
|
|
|
WORKDIR /tmp/rootfs/opt
|
|
|
|
# generate static error pages (for usage inside another docker images, for example)
|
|
RUN set -x \
|
|
&& ./../bin/error-pages --config-file ./error-pages.yml build ./html --verbose --index \
|
|
&& ls -l ./html
|
|
|
|
# use empty filesystem
|
|
FROM scratch as runtime
|
|
|
|
ARG APP_VERSION="undefined@docker"
|
|
|
|
LABEL \
|
|
# Docs: <https://github.com/opencontainers/image-spec/blob/master/annotations.md>
|
|
org.opencontainers.image.title="error-pages" \
|
|
org.opencontainers.image.description="Static server error pages in the docker image" \
|
|
org.opencontainers.image.url="https://github.com/tarampampam/error-pages" \
|
|
org.opencontainers.image.source="https://github.com/tarampampam/error-pages" \
|
|
org.opencontainers.image.vendor="tarampampam" \
|
|
org.opencontainers.version="$APP_VERSION" \
|
|
org.opencontainers.image.licenses="MIT"
|
|
|
|
# Import from builder
|
|
COPY --from=builder /tmp/rootfs /
|
|
|
|
# Use an unprivileged user
|
|
USER appuser:appuser
|
|
|
|
WORKDIR /opt
|
|
|
|
ENV LISTEN_PORT="8080" \
|
|
TEMPLATE_NAME="ghost"
|
|
|
|
# Docs: <https://docs.docker.com/engine/reference/builder/#healthcheck>
|
|
HEALTHCHECK --interval=7s --timeout=2s CMD [ \
|
|
"/bin/error-pages", "healthcheck", "--log-json" \
|
|
]
|
|
|
|
ENTRYPOINT ["/bin/error-pages"]
|
|
|
|
CMD ["serve", "--log-json"]
|