Update Go to v1.20 and Alpine 3.18

.github/workflows/lint.yaml

@@ -18,8 +18,8 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/setup-go@v3
       with:
-        go-version: 1.19
+        go-version: '1.20'
     - name: golangci-lint
       uses: golangci/golangci-lint-action@v3
       with:
-        version: v1.48
+        version: v1.53.2

.github/workflows/release.yaml

@@ -19,7 +19,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.19
+        go-version: '1.20'
     - name: Generate github app token
       id: generate_github_app_token
       uses: tibdex/github-app-token@f717b5ecd4534d3c4df4ce9b5c1c2214f0f7cd06  # v1.6.0

.github/workflows/test.yaml

@@ -21,7 +21,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/setup-go@v3
       with:
-        go-version: 1.19
+        go-version: '1.20'
     - uses: actions/cache@v3
       with:
         path: ~/go/pkg/mod

.go-version

@@ -1 +1 @@
-1.19
+1.20

Dockerfile

@@ -1,5 +1,5 @@
 # tfupdate
-FROM golang:1.19-alpine3.16 AS tfupdate
+FROM golang:1.20-alpine3.18 AS tfupdate
 RUN apk --no-cache add make git
 WORKDIR /work
 
@@ -13,7 +13,7 @@ RUN make build
 # The linux binary for hub can not run on alpine.
 # So we need to build it from source.
 # https://github.com/github/hub/issues/1818
-FROM golang:1.19-alpine3.16 AS hub
+FROM golang:1.20-alpine3.18 AS hub
 RUN apk add --no-cache bash git
 RUN git clone https://github.com/github/hub /work
 WORKDIR /work
@@ -22,7 +22,7 @@ RUN ./script/build -o bin/hub
 # runtime
 # Note: Required Tools for Primary Containers on CircleCI
 # https://circleci.com/docs/2.0/custom-images/#required-tools-for-primary-containers
-FROM alpine:3.16
+FROM alpine:3.18
 RUN apk --no-cache add bash git openssh-client tar gzip ca-certificates jq openssl curl
 COPY --from=tfupdate /work/bin/tfupdate /usr/local/bin/
 COPY --from=hub /work/bin/hub /usr/local/bin/

README.md

@@ -46,7 +46,7 @@ https://github.com/minamijoyo/tfupdate/releases
 
 ### Source
 
-If you have Go 1.19+ development environment:
+If you have Go 1.20+ development environment:
 
 ```
 $ go install github.com/minamijoyo/tfupdate@latest

go.mod

@@ -1,6 +1,6 @@
 module github.com/minamijoyo/tfupdate
 
-go 1.19
+go 1.20
 
 require (
 	github.com/davecgh/go-spew v1.1.1