Update go version to 1.18 (#322)

Author: cerkauskas

.buildkite/Dockerfile-ci

@@ -1,4 +1,4 @@
-FROM golang:1.16-stretch
+FROM golang:1.18-stretch
 
 RUN mkdir /helm && \
   cd /helm && \

.buildkite/pipeline-test-e2e.yml

@@ -3,7 +3,7 @@ steps:
     command: make clean test-e2e
     env:
       CGO_ENABLED: 0
-      GIMME_GO_VERSION: 1.16.x
+      GIMME_GO_VERSION: 1.18.x
     plugins:
       gopath-checkout#v1.0.1:
         import: github.com/m3db/m3db-operator

.golangci.yml

@@ -221,6 +221,8 @@ linters:
     - gomoddirectives
     # Returning an interface should not be a crime.
     - ireturn
+    # Allow structs to be not completely specified.
+    - exhaustruct
   disable-all: false
   presets:
     # bodyclose, errcheck, gosec, govet, scopelint, staticcheck, typecheck

Dockerfile

@@ -1,5 +1,5 @@
 # stage 1: build
-FROM golang:1.16-alpine3.13 AS builder
+FROM golang:1.18-alpine3.16 AS builder
 LABEL maintainer="The m3db-operator Authors <[email protected]>"
 
 # Install CA certs for curl

go.mod

@@ -579,8 +579,9 @@ func (c *M3DBController) handleClusterUpdate(
 		// strategy, then move to the next statefulset. When using the OnDelete update
 		// strategy, we still may want to restart nodes for this particular statefulset,
 		// so don't continue yet.
-		onDeleteUpdateStrategy :=
-			actual.Spec.UpdateStrategy.Type == appsv1.OnDeleteStatefulSetStrategyType
+		onDeleteUpdateStrategy := actual.Spec.UpdateStrategy.Type ==
+			appsv1.OnDeleteStatefulSetStrategyType
+
 		if !update && !onDeleteUpdateStrategy {
 			continue
 		}

go.sum

@@ -180,6 +180,7 @@ func waitForStatefulSets(
 		ctx         = context.Background()
 	)
 
+	//nolint:forcetypeassert
 	controller.kubeClient.(*kubefake.Clientset).PrependReactor(verb, "statefulsets", func(action ktesting.Action) (bool, runtime.Object, error) {
 		var sts *appsv1.StatefulSet
 		switch verb {
@@ -220,6 +221,7 @@ func waitForStatefulSets(
 		return false, nil, nil
 	})
 
+	//nolint:forcetypeassert
 	controller.kubeClient.(*kubefake.Clientset).PrependReactor(
 		"delete", "pods", func(action ktesting.Action) (bool, runtime.Object, error) {
 			podName := action.(kubetesting.DeleteActionImpl).GetName()