use golang 1.22

.github/workflows/build.yaml

@@ -8,10 +8,10 @@ jobs:
     name: Build shell-operator binary
     runs-on: ubuntu-latest
     steps:
-      - name: Set up Go 1.20
+      - name: Set up Go 1.22
         uses: actions/setup-go@v5
         with:
-          go-version: "1.20"
+          go-version: "1.22"
 
       - name: Check out shell-operator code
         uses: actions/checkout@v4

.github/workflows/lint.yaml

@@ -10,10 +10,10 @@ jobs:
     name: Run linter
     runs-on: ubuntu-latest
     steps:
-      - name: Set up Go 1.20
+      - name: Set up Go 1.22
         uses: actions/setup-go@v5
         with:
-          go-version: "1.20"
+          go-version: "1.22"
 
       - name: Check out shell-operator code
         uses: actions/checkout@v4

.github/workflows/tests-labeled.yaml

@@ -63,10 +63,10 @@ jobs:
           cluster_name: "kube-1-27"
     runs-on: ubuntu-latest
     steps:
-      - name: Set up Go 1.20
+      - name: Set up Go 1.22
         uses: actions/setup-go@v5
         with:
-          go-version: "1.20"
+          go-version: "1.22"
 
       - name: Check out shell-operator code
         uses: actions/checkout@v4

.github/workflows/tests.yaml

@@ -9,10 +9,10 @@ jobs:
     name: Run unit tests
     runs-on: ubuntu-latest
     steps:
-      - name: Set up Go 1.20
+      - name: Set up Go 1.22
         uses: actions/setup-go@v5
         with:
-          go-version: "1.20"
+          go-version: "1.22"
 
       - name: Check out shell-operator code
         uses: actions/checkout@v4

Dockerfile

@@ -2,7 +2,7 @@
 FROM --platform=${TARGETPLATFORM:-linux/amd64} flant/jq:b6be13d5-musl as libjq
 
 # Go builder.
-FROM --platform=${TARGETPLATFORM:-linux/amd64} golang:1.20-alpine3.16 AS builder
+FROM --platform=${TARGETPLATFORM:-linux/amd64} golang:1.22-alpine3.19 AS builder
 
 ARG appVersion=latest
 RUN apk --no-cache add git ca-certificates gcc musl-dev libc-dev
@@ -30,7 +30,7 @@ ARG TARGETPLATFORM
 RUN apk --no-cache add ca-certificates bash sed tini && \
     kubectlArch=$(echo ${TARGETPLATFORM:-linux/amd64} | sed 's/\/v7//') && \
     echo "Download kubectl for ${kubectlArch}" && \
-    wget https://storage.googleapis.com/kubernetes-release/release/v1.21.10/bin/${kubectlArch}/kubectl -O /bin/kubectl && \
+    wget https://storage.googleapis.com/kubernetes-release/release/v1.27.13/bin/${kubectlArch}/kubectl -O /bin/kubectl && \
     chmod +x /bin/kubectl && \
     mkdir /hooks
 ADD frameworks/shell /frameworks/shell