Adding auto versioning

Makefile

@@ -2,7 +2,7 @@ GO ?= $(shell which go)
 OS ?= $(shell $(GO) env GOOS)
 ARCH ?= $(shell $(GO) env GOARCH)
 
-IMAGE_NAME := "webhook"
+IMAGE_NAME := "cert-manager-webhook-sthome"
 IMAGE_TAG := "latest"
 
 OUT := $(shell pwd)/_out
@@ -11,6 +11,10 @@ KUBEBUILDER_VERSION=1.28.0
 
 HELM_FILES := $(shell find deploy/sthome-webhook)
 
+dependencies:
+	go mod tidy
+	go mod vendor
+
 test: _test/kubebuilder-$(KUBEBUILDER_VERSION)-$(OS)-$(ARCH)/etcd _test/kubebuilder-$(KUBEBUILDER_VERSION)-$(OS)-$(ARCH)/kube-apiserver _test/kubebuilder-$(KUBEBUILDER_VERSION)-$(OS)-$(ARCH)/kubectl
 	TEST_ASSET_ETCD=_test/kubebuilder-$(KUBEBUILDER_VERSION)-$(OS)-$(ARCH)/etcd \
 	TEST_ASSET_KUBE_APISERVER=_test/kubebuilder-$(KUBEBUILDER_VERSION)-$(OS)-$(ARCH)/kube-apiserver \
@@ -28,7 +32,9 @@ clean:
 	rm -r _test $(OUT)
 
 .PHONY: build
-build:
+build: dependencies
+    go run cmd/buildnumber.go
+	go build -o $(IMAGE_NAME)
 	docker build -t "$(IMAGE_NAME):$(IMAGE_TAG)" .
 
 .PHONY: rendered-manifest.yaml

cmd/buildnumber.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+)
+
+func main() {
+	// Load the file content
+	vFileData, _ := os.ReadFile("version.txt")
+
+	// Convert from Byte array to string and split
+	// on newlines. We now have a slice of strings
+	vLines := strings.Split(string(vFileData), "\n")
+
+	// Generate a timestamp.
+	bTime := time.Now().Format("20060102-1504")
+
+	// Load the count from the 3rd line of the file
+	// It's a string so we need to convert to integer
+	// Then increment it by 1
+	bNum, _ := strconv.Atoi(vLines[2])
+	bNum++
+
+	// Generate a single string to write back to the file
+	// Note, we didn't change the version string
+	outStr := vLines[0] + "\n" + bTime + "\n" + fmt.Sprint(bNum)
+
+	// Write the data back to the file.
+	_ = os.WriteFile("version.txt", []byte(outStr), 0777)
+}

deploy/sthome-webhook/values.yaml

@@ -32,7 +32,7 @@ image:
   repository: stuurmcp/cert-manager-webhook-sthome
   tag: 0.0.3
   #pullPolicy should be IfNotPresent. Set to Always for testing purposes
-  pullPolicy: Always
+  pullPolicy: IfNotPresent
 
 imageCredentials:
   name: docker-registry-credentials

main.go

@@ -1,6 +1,9 @@
 package main
 
 import (
+	_ "embed"
+	"strings"
+
 	"os"
 
 	"github.com/cert-manager/cert-manager/pkg/acme/webhook/cmd"
@@ -8,6 +11,13 @@ import (
 	"github.com/stuurmcp/cert-manager-webhook-sthome/sthome"
 )
 
+var (
+	// Version : current version
+	Version string = strings.TrimSpace(version)
+	//go:embed version.txt
+	version string
+)
+
 var GroupName = os.Getenv("GROUP_NAME")
 
 func main() {

version.txt

@@ -0,0 +1,3 @@
+0.0.3(Alpha)     
+20240328-0000    
+01