Build webhook with stream-command-output support.

For the s3import script seems useful to print the output as it happens,
as version 2.8.0 of webhook does not have this functionality we are
applying the PR 549 (adnanh/webhook#549) and
building the binary for alpine.

Dockerfile

@@ -1,12 +1,28 @@
 ARG ALPINE_VERSION
+
+FROM golang:alpine AS builder
+LABEL maintainer="Sergio Talens-Oliag <[email protected]>"
+WORKDIR /go/src/github.com/adnanh/webhook
+RUN apk update &&\
+ apk add --no-cache -t build-deps curl libc-dev gcc libgcc patch &&\
+ curl -L --silent -o webhook.tar.gz\
+ https://github.com/adnanh/webhook/archive/2.8.0.tar.gz &&\
+ tar -xzf webhook.tar.gz --strip 1 &&\
+ curl -L --silent -o 549.patch\
+ https://patch-diff.githubusercontent.com/raw/adnanh/webhook/pull/549.patch &&\
+ patch -p1 < 549.patch &&\
+ go get -d && \
+ go build -o /usr/local/bin/webhook
+
 FROM alpine:$ALPINE_VERSION
 LABEL maintainer="Sergio Talens-Oliag <[email protected]>"
 RUN apk update &&\
- apk add --no-cache mailcap nodejs npm util-linux-misc webhook &&\
+ apk add --no-cache mailcap nodejs npm util-linux-misc &&\
  apk add --no-cache s3fs-fuse \
    --repository=http://dl-cdn.alpinelinux.org/alpine/edge/testing/ &&\
  rm -rf /var/cache/apk/* &&\
  npm install --location=global kyso
+COPY --from=builder /usr/local/bin/webhook /usr/local/bin/webhook
 COPY entrypoint.sh /
 COPY hooks/* /webhook/hooks/
 EXPOSE 9000

entrypoint.sh

@@ -99,6 +99,7 @@ print_s3import_yml() {
   - source: 'payload'
     envname: 'ORGANIZATION'
     name: 'import.organization'
+  stream-command-output: true
 EOF
 }