Switch ci/ci to use go1.18

.github/workflows/golangci-lint.yaml

@@ -23,6 +23,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.18
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v2
         with:

.github/workflows/goreleaser-action.yaml

@@ -17,7 +17,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.17
+          go-version: 1.18
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v2
         with:

.github/workflows/ko-build.yaml

@@ -20,7 +20,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v2
         with:
-          go-version: 1.17
+          go-version: 1.18
       - uses: actions/checkout@v2
       - uses: imjasonh/[email protected]
       - run: KO_DOCKER_REPO=${DOCKER_REPO,,} ko publish --bare --tags ${{ github.ref_name }},latest --platform all .

.github/workflows/ko-release.yaml

@@ -19,7 +19,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v2
         with:
-          go-version: 1.17
+          go-version: 1.18
       - uses: actions/checkout@v2
       - uses: imjasonh/[email protected]
       - run: KO_DOCKER_REPO=${DOCKER_REPO,,} ko publish --bare --tags ${{ github.ref_name }},latest --platform all .

.github/workflows/test.yaml

@@ -15,7 +15,7 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [1.17.x, 1.18.x]
+        go-version: [1.18.x]
         os: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.17 as builder
+FROM golang:1.18 as builder
 
 WORKDIR /build
 # pre-copy/cache go.mod for pre-downloading dependencies and only redownloading them in subsequent builds if they change