From 746e878ffcd3e654e603528f6bc0406fed9a25bc Mon Sep 17 00:00:00 2001
From: Matti R <matti@mdranta.net>
Date: Wed, 13 Oct 2021 01:14:04 -0400
Subject: [PATCH] build go binary in docker

---
 .woodpecker/main.yml |  6 ------
 Dockerfile           | 21 +++++++++++----------
 2 files changed, 11 insertions(+), 16 deletions(-)

diff --git a/.woodpecker/main.yml b/.woodpecker/main.yml
index 50e50a3..8e82188 100644
--- a/.woodpecker/main.yml
+++ b/.woodpecker/main.yml
@@ -1,10 +1,4 @@
 pipeline:
-  build:
-    image: golang:1.17
-    commands:
-      - "[ -z \"${DRONE_TAG}\" ] && BUILD_VERSION=${DRONE_COMMIT_SHA:0:8} || BUILD_VERSION=${DRONE_TAG##v}"
-      - go build -v -a -tags netgo ./cmd/docker-buildx
-
   publish:
     image: plugins/docker
     repo: foo/bar
diff --git a/Dockerfile b/Dockerfile
index 6914d10..2c42f30 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,11 +1,11 @@
-FROM docker:20.10-dind@sha256:d20f0866ee1aca6b0eb7bc8bdb0d0c938721c7f79219b1d3bc1aa58666928586
+FROM golang:1.17-alpine as build
 
-LABEL maintainer="Robert Kaussow <mail@thegeeklab.de>"
-LABEL org.opencontainers.image.authors="Robert Kaussow <mail@thegeeklab.de>"
-LABEL org.opencontainers.image.title="drone-docker-buildx"
-LABEL org.opencontainers.image.url="https://github.com/thegeeklab/drone-docker-buildx"
-LABEL org.opencontainers.image.source="https://github.com/thegeeklab/drone-docker-buildx"
-LABEL org.opencontainers.image.documentation="https://github.com/thegeeklab/drone-docker-buildx"
+COPY . /src
+WORKDIR /src
+
+RUN go build -v -a -tags netgo ./cmd/docker-buildx -o docker-buildx
+
+FROM docker:20.10-dind
 
 ARG BUILDX_VERSION
 
@@ -14,7 +14,8 @@ ENV BUILDX_VERSION="${BUILDX_VERSION:-v0.6.3}"
 
 ENV DOCKER_HOST=unix:///var/run/docker.sock
 
-RUN apk --update add --virtual .build-deps curl && \
+RUN \
+    apk --update add --virtual .build-deps curl && \
     mkdir -p /usr/lib/docker/cli-plugins/ && \
     curl -SsL -o /usr/lib/docker/cli-plugins/docker-buildx "https://github.com/docker/buildx/releases/download/v${BUILDX_VERSION##v}/buildx-v${BUILDX_VERSION##v}.linux-amd64" && \
     chmod 755 /usr/lib/docker/cli-plugins/docker-buildx && \
@@ -22,6 +23,6 @@ RUN apk --update add --virtual .build-deps curl && \
     rm -rf /var/cache/apk/* && \
     rm -rf /tmp/*
 
-ADD release/amd64/drone-docker-buildx /bin/
+COPY --from=build /src/docker-buildx /bin/docker-buildx
 
-ENTRYPOINT ["/usr/local/bin/dockerd-entrypoint.sh", "drone-docker-buildx"]
+ENTRYPOINT ["/usr/local/bin/dockerd-entrypoint.sh", "docker-buildx"]