akeleton config and launch template

internal/hetzner/hetzneragent.go

@@ -0,0 +1,55 @@
+package hetzner
+
+import (
+	"os"
+	"text/template"
+
+	"git.uploadfilter24.eu/covidnetes/woodpecker-autoscaler/internal/config"
+)
+
+var USER_DATA_TEMPLATE = `
+write_files:
+- content: |
+    # docker-compose.yml
+    version: '3'
+
+    services:
+
+      woodpecker-agent:
+        image: {{ .Image }}
+        command: agent
+        restart: always
+        volumes:
+          - /var/run/docker.sock:/var/run/docker.sock
+        environment:
+		{{- range $key, $val := .EnvConfig }}
+			- {{ $key }}: {{ $val }}
+	  	{{- end }}
+  path: /root/docker-compose.yml
+runcmd:
+- [ sh, -xc, "cd /root; docker run --rm --privileged multiarch/qemu-user-static --reset -p yes; docker compose up -d" ]
+`
+
+type UserDataConfig struct {
+	Image     string
+	EnvConfig map[string]string
+}
+
+func generateConfig(cfg *config.Config) {
+	envConfig := map[string]string{}
+	envConfig["WOODPECKER_SERVER"] = cfg.WoodpeckerInstance
+	envConfig["WOODPECKER_AGENT_SECRET"] = cfg.WoodpeckerAgentSecret
+	envConfig["WOODPECKER_FILTER_LABELS"] = cfg.LabelSelector
+	config := UserDataConfig{
+		Image:     "woodpeckerci/woodpecker-agent:latest",
+		EnvConfig: envConfig,
+	}
+	tmpl, err := template.New("test").Parse(USER_DATA_TEMPLATE)
+	if err != nil {
+		panic(err)
+	}
+	err = tmpl.Execute(os.Stdout, config)
+	if err != nil {
+		panic(err)
+	}
+}