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Add some comments in Dockerfile

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YAEGASHI Takeshi 2019-06-27 03:07:10 +09:00
parent 22f0d5cbd6
commit 9e27fcdcb4
1 changed files with 11 additions and 0 deletions
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Dockerfile
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@ -1,3 +1,12 @@
# Dockerfile for Hugo (HUGO=hugo) / Hugo Extended (HUGO=hugo_extended)
# HUGO_VERSION / HUGO_SHA / HUGO_EXTENDED_SHA is automatically updated
# by update.py when new release is available on the upstream.
# Utilize multi-stage builds to make images optimized in size.
# First stage - download prebuilt hugo binary from the GitHub release.
# Use golang image to run https://github.com/yaegashi/muslstack
# on hugo executable to extend its default thread stack size to 8MB
# to work around segmentation fault issues.
FROM golang:1.12-alpine FROM golang:1.12-alpine
ARG HUGO=hugo ARG HUGO=hugo
ARG HUGO_VERSION=0.55.6 ARG HUGO_VERSION=0.55.6
@ -15,6 +24,8 @@ RUN set -eux && \
RUN go get github.com/yaegashi/muslstack RUN go get github.com/yaegashi/muslstack
RUN muslstack -s 0x800000 /usr/bin/hugo RUN muslstack -s 0x800000 /usr/bin/hugo
# Second stage - build the final image with minimal apk dependencies.
# alpine:edge is required for muslstack to work as of June 2019.
FROM alpine:edge FROM alpine:edge
ARG HUGO=hugo ARG HUGO=hugo
COPY --from=0 /usr/bin/hugo /usr/bin COPY --from=0 /usr/bin/hugo /usr/bin