add scaffolding for go bump to 1.22

- Add "make go-version" in Makefile to easily access used Go version
- Add setup-go steps to functional and build workflows that setup the
  correct version of Go
- Bump gomod prow test to 1.22 (pairs with PR in project-infra)

This should allow the actual bump to golang 1.22 to succeed.

Signed-off-by: Tuomo Tanskanen <tuomo.tanskanen@est.tech>

.github/workflows/build.yml

@@ -2,15 +2,22 @@ name: Building and testing
 
 on:
   push:
-    branches: [ "main" ]
+    branches: ["main"]
   pull_request:
-    branches: [ "main" ]
+    branches: ["main"]
 
 jobs:
   test:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
+    - name: Calculate go version
+      id: vars
+      run: echo "go_version=$(make go-version)" >> $GITHUB_OUTPUT
+    - name: Set up Go
+      uses: actions/setup-go@cdcb36043654635271a94b9a6d1392de5bb323a7 # v5.0.1
+      with:
+        go-version: ${{ steps.vars.outputs.go_version }}
     - name: Run unit tests
       run: make test
   container:
@@ -25,6 +32,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
+    - name: Calculate go version
+      id: vars
+      run: echo "go_version=$(make go-version)" >> $GITHUB_OUTPUT
+    - name: Set up Go
+      uses: actions/setup-go@cdcb36043654635271a94b9a6d1392de5bb323a7 # v5.0.1
+      with:
+        go-version: ${{ steps.vars.outputs.go_version }}
     - name: Generate manifests
       run: make generate manifests
     - name: Ensure there is no diff

.github/workflows/functional.yml

@@ -2,15 +2,22 @@ name: Functional
 
 on:
   push:
-    branches: [ "main" ]
+    branches: ["main"]
   pull_request:
-    branches: [ "main" ]
+    branches: ["main"]
 
 jobs:
   functional:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
+    - name: Calculate go version
+      id: vars
+      run: echo "go_version=$(make go-version)" >> $GITHUB_OUTPUT
+    - name: Set up Go
+      uses: actions/setup-go@cdcb36043654635271a94b9a6d1392de5bb323a7 # v5.0.1
+      with:
+        go-version: ${{ steps.vars.outputs.go_version }}
     - uses: helm/kind-action@v1
       with:
         cluster_name: kind

Makefile

@@ -281,3 +281,7 @@ catalog-build: opm ## Build a catalog image.
 .PHONY: catalog-push
 catalog-push: ## Push a catalog image.
 	$(MAKE) docker-push IMG=$(CATALOG_IMG)
+
+##@ helpers:
+go-version: ## Print the go version we use to compile our binaries and images
+	@echo $(GO_VERSION)

hack/gomod.sh

@@ -39,6 +39,6 @@ else
         --volume "${PWD}:/workdir:ro,z" \
         --entrypoint sh \
         --workdir /workdir \
-        docker.io/golang:1.21 \
+        docker.io/golang:1.22 \
         /workdir/hack/gomod.sh "$@"
 fi