From c4e1e48c5c0b0668f8dbc6d636b5b34adce4a93b Mon Sep 17 00:00:00 2001
From: xdu31 <jasonxdu@amazon.com>
Date: Mon, 4 Mar 2024 20:17:35 -0800
Subject: [PATCH] Repo controlled Go version

Signed-off-by: xdu31 <jasonxdu@amazon.com>
---
 .github/workflows/go.coverage.yml   |  5 ++++-
 .github/workflows/go.test.yml       | 10 ++++++++--
 .github/workflows/golangci-lint.yml |  4 +++-
 .github/workflows/make.doc.yml      |  5 ++++-
 .go-version                         |  1 +
 Makefile                            |  4 ++++
 Makefile.release                    |  4 ++++
 7 files changed, 28 insertions(+), 5 deletions(-)
 create mode 100644 .go-version

diff --git a/.github/workflows/go.coverage.yml b/.github/workflows/go.coverage.yml
index b7d735a148d7..e9d9a0ab68d0 100644
--- a/.github/workflows/go.coverage.yml
+++ b/.github/workflows/go.coverage.yml
@@ -11,10 +11,13 @@ jobs:
       - name: Check out code
         uses: actions/checkout@v4
 
+      - name: Setup Go Version
+        run: echo "GO_VERSION=$(cat .go-version)" >> $GITHUB_ENV
+
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '~1.21.0'
+          go-version: ${{ env.GO_VERSION }}
         id: go
 
       - name: Build
diff --git a/.github/workflows/go.test.yml b/.github/workflows/go.test.yml
index fbd1f7ff6f97..5f6d5bd0afaa 100644
--- a/.github/workflows/go.test.yml
+++ b/.github/workflows/go.test.yml
@@ -11,10 +11,13 @@ jobs:
       - name: Check out code
         uses: actions/checkout@v4
 
+      - name: Setup Go Version
+        run: echo "GO_VERSION=$(cat .go-version)" >> $GITHUB_ENV
+
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '~1.21.0'
+          go-version: ${{ env.GO_VERSION }}
         id: go
 
       - name: Build
@@ -33,10 +36,13 @@ jobs:
       - name: Check out code
         uses: actions/checkout@v4
 
+      - name: Setup Go Version
+        run: echo "GO_VERSION=$(cat .go-version)" >> $GITHUB_ENV
+
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '~1.21.0'
+          go-version: ${{ env.GO_VERSION }}
         id: go
 
       - name: Build
diff --git a/.github/workflows/golangci-lint.yml b/.github/workflows/golangci-lint.yml
index 2c4579d3c88d..471d6e0e77b1 100644
--- a/.github/workflows/golangci-lint.yml
+++ b/.github/workflows/golangci-lint.yml
@@ -7,9 +7,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Setup Go Version
+        run: echo "GO_VERSION=$(cat .go-version)" >> $GITHUB_ENV
       - uses: actions/setup-go@v5
         with:
-          go-version: '~1.21.0'
+          go-version: ${{ env.GO_VERSION }}
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v3.7.0
         with:
diff --git a/.github/workflows/make.doc.yml b/.github/workflows/make.doc.yml
index ef0025331170..10ac48773a19 100644
--- a/.github/workflows/make.doc.yml
+++ b/.github/workflows/make.doc.yml
@@ -15,10 +15,13 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Setup Go Version
+        run: echo "GO_VERSION=$(cat .go-version)" >> $GITHUB_ENV
+
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: '~1.21.0'
+          go-version: ${{ env.GO_VERSION }}
 
       - name: Update Docs
         run: |
diff --git a/.go-version b/.go-version
new file mode 100644
index 000000000000..8819d012ceed
--- /dev/null
+++ b/.go-version
@@ -0,0 +1 @@
+1.21.7
diff --git a/Makefile b/Makefile
index 10fca3da1a18..8ee633c36315 100644
--- a/Makefile
+++ b/Makefile
@@ -7,6 +7,10 @@ BUILDOPTS?=-v
 GOPATH?=$(HOME)/go
 MAKEPWD:=$(dir $(realpath $(firstword $(MAKEFILE_LIST))))
 CGO_ENABLED?=0
+GOLANG_VERSION ?= $(shell cat .go-version)
+
+export GOSUMDB = sum.golang.org
+export GOTOOLCHAIN = go$(GOLANG_VERSION)
 
 .PHONY: all
 all: coredns
diff --git a/Makefile.release b/Makefile.release
index f28a8ddcdd1a..bc4108fd506d 100644
--- a/Makefile.release
+++ b/Makefile.release
@@ -52,6 +52,10 @@ NAME:=coredns
 VERSION:=$(shell grep 'CoreVersion' coremain/version.go | awk '{ print $$3 }' | tr -d '"')
 GITHUB:=coredns
 LINUX_ARCH:=amd64 arm arm64 mips64le ppc64le s390x mips riscv64
+GOLANG_VERSION ?= $(shell cat .go-version)
+
+export GOSUMDB = sum.golang.org
+export GOTOOLCHAIN = go$(GOLANG_VERSION)
 
 all:
 	@echo Use the 'release' target to build a release