Migrate Ingress API version from extensions/v1beta1 to networking.k8s.io/v1 (#14)

* Upgrade go version to 1.19

* Migrating to Go modules

* Use buffered channel

go vet
./main.go:142:2: misuse of unbuffered os.Signal channel as argument to signal.Notify
./main.go:143:2: misuse of unbuffered os.Signal channel as argument to signal.Notify

* Use go install

* Update k8s.io/client-go to v0.23.10

* Use NetworkingV1().Ingresses()

Author: yukirii

.circleci/config.yml

@@ -6,32 +6,17 @@ defaults: &defaults
 golang: &golang
   <<: *defaults
   docker:
-    - image: golang:1.12
+    - image: golang:1.19
 
 jobs:
   build:
     <<: *golang
     steps:
       - checkout
-      - restore_cache:
-          keys:
-            - vendor-{{ checksum "Gopkg.lock" }}
-      - run:
-          name: Install dpendency tool
-          command: |
-            go get -u github.com/golang/dep/cmd/dep
       - run:
           name: Install dependencies
           command: |
-            make dep
-      - save_cache:
-          key: vendor-{{ checksum "Gopkg.lock" }}
-          paths:
-            - /go/src/github.com/mercari/certificate-expiry-monitor-controller/vendor
-      - persist_to_workspace:
-          root: /go/src/github.com/mercari/certificate-expiry-monitor-controller
-          paths:
-            - "vendor/*"
+            go mod download
       - run:
           name: Check compilation
           command: |
@@ -45,7 +30,7 @@ jobs:
       - run:
           name: Install dpendency tool
           command: |
-            go get -u golang.org/x/lint/golint
+            go install golang.org/x/lint/golint
       - run:
           name: Run go vet
           command: |

Dockerfile

@@ -1,10 +1,9 @@
-FROM golang:1.12
+FROM golang:1.19
 
 WORKDIR /go/src/github.com/mercari/certificate-expiry-monitor-controller
 
-RUN go get github.com/golang/dep/cmd/dep
-COPY Gopkg.toml Gopkg.lock ./
-RUN dep ensure -v -vendor-only
+COPY go.mod go.sum ./
+RUN go mod download
 
 COPY . ./
 
@@ -17,4 +16,4 @@ FROM alpine:latest
 RUN apk --no-cache add ca-certificates
 COPY --from=0 /go/bin/certificate-expiry-monitor-controller /bin/certificate-expiry-monitor-controller
 
-CMD ["/bin/certificate-expiry-monitor-controller"]
+CMD ["/bin/certificate-expiry-monitor-controller"]