Validate go versions in Static Code Checks CI (#15932)

Signed-off-by: Tim Vaillancourt <[email protected]>

.github/workflows/static_checks_etc.yml

@@ -149,6 +149,11 @@ jobs:
         run: |
           make minimaltools
 
+      - name: check_go_versions
+        if: steps.skip-workflow.outputs.skip-workflow == 'false'
+        run:
+          tools/check_go_versions.sh || exit 1
+
       - name: check_make_parser
         if: steps.skip-workflow.outputs.skip-workflow == 'false' && (steps.changes.outputs.parser_changes == 'true' || steps.changes.outputs.go_files == 'true')
         run: |

tools/check_go_versions.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+#
+# Validate that the go versions in go.mod, CI test workflows
+# and docker/bootstrap/Dockerfile.common are compatible.
+#
+# This is called from the Static Code Checks CI workflow.
+
+set -e
+
+# go.mod
+GO_MOD_VERSION="$(awk '/^go [0-9].[0-9]+/{print $(NF-0)}' go.mod)"
+if [ -z "${GO_MOD_VERSION}" ]; then
+  echo "cannot find go version in go.mod"
+  exit 1
+fi
+
+# ci workflows
+TPL_GO_VERSIONS="$(awk '/go-version: /{print $(NF-0)}' .github/workflows/*.yml test/templates/*.tpl | sort -u)"
+TPL_GO_VERSIONS_COUNT=$(echo "$TPL_GO_VERSIONS" | wc -l | tr -d [:space:])
+if [ "${TPL_GO_VERSIONS_COUNT}" -gt 1 ]; then
+  echo -e "expected a consistent 'go-version:' in CI workflow files/templates, found versions:\n${TPL_GO_VERSIONS}"
+  exit 1
+fi
+TPL_GO_VERSION="${TPL_GO_VERSIONS}"
+if [[ ! "${TPL_GO_VERSION}" =~ "${GO_MOD_VERSION}" ]]; then
+  echo "expected go-version in test/templates/* to be equal to go.mod: '${TPL_GO_VERSION}' != '${GO_MOD_VERSION}'"
+  exit 1
+fi
+
+# docker/bootstrap/Dockerfile.common
+BOOTSTRAP_GO_VERSION="$(awk -F ':' '/golang:/{print $(NF-0)}' docker/bootstrap/Dockerfile.common | cut -d- -f1)"
+if [[ ! "${BOOTSTRAP_GO_VERSION}" =~ "${GO_MOD_VERSION}" ]]; then
+  echo "expected golang docker version in docker/bootstrap/Dockerfile.common to be equal to go.mod: '${TPL_GO_VERSION}' != '${GO_MOD_VERSION}'"
+  exit 1
+elif [ "${TPL_GO_VERSION}" != "${BOOTSTRAP_GO_VERSION}" ]; then
+  echo "expected equal go version in CI workflow files/templates and bootstrap Dockerfile: '${TPL_GO_VERSIONS}' != '${BOOTSTRAP_GO_VERSION}'"
+  exit 1
+fi