From 125f7ac6e026bd6750817c46da51cb479d95d121 Mon Sep 17 00:00:00 2001
From: "Lance R. Vick" <lance@lrvick.net>
Date: Thu, 2 Nov 2023 05:12:38 -0700
Subject: [PATCH] wip go example

---
 packages/golang/Dockerfile | 64 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 packages/golang/Dockerfile

diff --git a/packages/golang/Dockerfile b/packages/golang/Dockerfile
new file mode 100644
index 0000000..84bfe0e
--- /dev/null
+++ b/packages/golang/Dockerfile
@@ -0,0 +1,64 @@
+ARG GO_VERSION=1.21.3
+ARG GO_HASH=186f2b6f8c8b704e696821b09ab2041a5c1ee13dcbc3156a13adcf75931ee488
+ARG GO_STAGE2_VERSION=1.19.11
+ARG GO_STAGE2_HASH=f4ff5b5eb3a3cae1c993723f3eab519c5bae18866b5e5f96fe1102f0cb5c3e52
+ARG GO_SOURCE_SITE = https://dl.google.com/go
+ARG GO_BOOTSTRAP_SOURCE = go${GO_BOOTSTRAP_VERSION}
+ARG BUSYBOX_IMAGE=ocirep:busybox
+ARG GCC_IMAGE=ocirep:gcc
+
+# build go bootstrap stage 1 with gcc
+FROM ${BUSYBOX_IMAGE} as stage1
+ENV GOOS=linux
+ENV GOROOT_FINAL="lib/go-${GO_STAGE1_VERSION}"
+ENV GOROOT="${GOROOT_FINAL}"
+ENV GOBIN="${GOROOT_FINAL}/bin"
+ENV CGO_ENABLED=0
+COPY --from=${GCC_IMAGE} / /
+RUN wget ${GO_SOURCE_SITE}/${GO_STAGE1_VERSION}.tar.gz
+RUN echo "${GO_STAGE1_HASH} ${GO_STAGE1_VERSION}.tar.gz" | sha256sum -c
+RUN tar -xvzf ${GO_STAGE1_VERSION}.tar.gz
+RUN env -C go ./make.bash
+RUN \
+    mkdir -p lib/go-${GO_STAGE1_VERSION} \
+    && cp bin lib pkg src lib/go-${GO_STAGE1_VERSION}
+
+# build go bootstrap stage 2 with go bootstrap stage 1
+FROM ${BUSYBOX_IMAGE} as stage2
+ENV GOOS=linux
+ENV GOROOT_FINAL="lib/go-${GO_STAGE2_VERSION}"
+ENV GOROOT="${GOROOT_FINAL}"
+ENV GOBIN="${GOROOT_FINAL}/bin"
+ENV GO11MODULE=off
+ENV CGO_ENABLED=0
+RUN wget ${GO_SOURCE_SITE}/${GO_STAGE2_VERSION}.tar.gz
+RUN echo "${GO_STAGE2_HASH} ${GO_STAGE2_VERSION}.tar.gz" | sha256sum -c
+COPY --from=stage1 lib /
+RUN tar -xvzf ${GO_STAGE2_VERSION}.tar.gz
+RUN env -C go ./make.bash
+RUN \
+    mkdir -p lib/go-${GO_STAGE1_VERSION} \
+    && cp bin lib pkg src lib/go-${GO_STAGE1_VERSION}
+
+# build target go with go bootstrap stage 2
+FROM ${BUSYBOX_IMAGE} as stage3
+ENV GOOS=linux
+ENV GOPROXY=off
+ENV GOTOOLCHAIN=local
+ENV GOFLAGS=-mod=vendor
+ENV GOROOT_FINAL="lib/go"
+ENV GOROOT="${GOROOT_FINAL}"
+ENV GOBIN="${GOROOT_FINAL}/bin"
+ENV GO11MODULE=on
+ENV CGO_ENABLED=0
+RUN wget ${GO_SOURCE_SITE}/${GO_VERSION}.tar.gz
+RUN echo "${GO_HASH} ${GO_VERSION}.tar.gz" | sha256sum -c
+COPY --from=stage2 lib /
+RUN tar -xvzf ${GO_VERSION}.tar.gz
+RUN env -C go ./make.bash
+RUN \
+    mkdir -p lib/go \
+    && cp bin lib pkg src lib/go
+
+FROM scratch
+COPY --from=stage3 lib /