decom agents as well

added helm chart added docs
2023-11-01 20:48:45 +01:00 · 2023-11-01 20:48:45 +01:00 · db1b560896
commit db1b560896
parent 7f2c465391
16 changed files with 427 additions and 26 deletions
--- a/.woodpecker/main.yml
+++ b/.woodpecker/main.yml
@ -11,7 +11,7 @@ steps:
    image: woodpeckerci/plugin-docker-buildx
    settings:
      platforms: linux/arm64/v8
-      repo: lerentis/metallb-ip-floater
+      repo: lerentis/woodpecker-autoscaler
      tags:
        - latest
        - ${CI_COMMIT_SHA}
--- a/.woodpecker/pr.yml
+++ b/.woodpecker/pr.yml
@ -10,7 +10,7 @@ steps:
    image: woodpeckerci/plugin-docker-buildx
    settings:
      platforms: linux/arm64/v8
-      repo: lerentis/metallb-ip-floater
+      repo: lerentis/woodpecker-autoscaler
      tags:
        - latest
        - ${CI_COMMIT_SHA}
--- a/.woodpecker/release.yml
+++ b/.woodpecker/release.yml
@ -10,7 +10,7 @@ steps:
    image: woodpeckerci/plugin-docker-buildx
    settings:
      platforms: linux/arm64/v8
-      repo: lerentis/metallb-ip-floater
+      repo: lerentis/woodpecker-autoscaler
      tags:
        - latest
        - ${CI_COMMIT_TAG}
--- a/README.md
+++ b/README.md
@ -1,2 +1,95 @@
 # woodpecker-autoscaler

+[![status-badge](https://woodpecker.uploadfilter24.eu/api/badges/8/status.svg)](https://woodpecker.uploadfilter24.eu/repos/8)
+
+Dynamically spawns woodpecker ci build agents in hetzner cloud.
+
+## Installing with Helm
+
+The deployment will use helm and the chart in `chart/woodpecker-autoscaler`.  
+You will need a [hcloud api token](https://docs.hetzner.com/cloud/api/getting-started/generating-api-token/), a [woodpecker agent secret](https://woodpecker-ci.org/docs/administration/agent-config#woodpecker_agent_secret), a woodpecker api token and a definition of the build agents to be created.
+Expose these information to the floater as described in this example:
+
+```yaml
+env:
+  - name: WOODPECKER_AUTOSCALER_LOGLEVEL
+    value: "Info"
+  - name: WOODPECKER_AUTOSCALER_CHECK_INTERVAL
+    value: "15"
+  - name: WOODPECKER_AUTOSCALER_WOODPECKER_LABEL_SELECTOR
+    value: "uploadfilter24.eu/instance-role=Woodpecker"
+  - name: WOODPECKER_AUTOSCALER_WOODPECKER_INSTANCE
+    value: "define_it"
+  - name: WOODPECKER_AUTOSCALER_WOODPECKER_AGENT_SECRET
+    value: "define_it"
+  - name: WOODPECKER_AUTOSCALER_WOODPECKER_API_TOKEN
+    value: "define_it"
+  - name: WOODPECKER_AUTOSCALER_HCLOUD_TOKEN
+    value: "define_it"
+  - name: WOODPECKER_AUTOSCALER_HCLOUD_INSTANCE_TYPE
+    value: "cpx21"
+  - name: WOODPECKER_AUTOSCALER_HCLOUD_REGION
+    value: "define_it"
+  - name: WOODPECKER_AUTOSCALER_HCLOUD_DATACENTER
+    value: "define_it"
+  - name: WOODPECKER_AUTOSCALER_HCLOUD_SSH_KEY
+    value: "define_it"
+```
+
+you can also create a secret manually with these information and reference the existing secret like this in the `values.yaml`:
+
+```yaml
+externalConfigSecret:
+  enabled: true
+  name: "my-existing-secret"
+```
+
+Now you are able to deploy:
+
+```bash
+kubectl create namespace woodpecker-autoscaler
+cd chart/woodpecker-autoscaler
+helm upgrade --install -f values.yaml -n woodpecker-autoscaler woodpecker-autoscaler ./
+```
+
+## Installing Manually
+
+Download the binary from the release section and place it somewhere on your system; `/usr/bin/woodpecker-autoscaler` for example.
+Create a systemd service like the one in this template:
+
+```systemd
+[Unit]
+Description=Dynamically spawn woodpecker ci build agents in hetzner cloud
+
+[Service]
+Type=simple
+Nice=10
+ExecStart=/usr/bin/woodpecker-autoscaler
+EnvironmentFile="/etc/default/woodpecker-autoscaler.env"
+```
+
+Now place the environment variable configuration in the specified file:
+
+```bash
+WOODPECKER_AUTOSCALER_LOGLEVEL=Info
+WOODPECKER_AUTOSCALER_CHECK_INTERVAL=15
+WOODPECKER_AUTOSCALER_WOODPECKER_LABEL_SELECTOR="uploadfilter24.eu/instance-role=Woodpecker"
+WOODPECKER_AUTOSCALER_WOODPECKER_INSTANCE="define_it"
+WOODPECKER_AUTOSCALER_WOODPECKER_AGENT_SECRET="define_it"
+WOODPECKER_AUTOSCALER_WOODPECKER_API_TOKEN="define_it"
+WOODPECKER_AUTOSCALER_HCLOUD_TOKEN="define_it"
+WOODPECKER_AUTOSCALER_HCLOUD_INSTANCE_TYPE=cpx21
+WOODPECKER_AUTOSCALER_HCLOUD_REGION="define_it"
+WOODPECKER_AUTOSCALER_HCLOUD_DATACENTER="define_it"
+WOODPECKER_AUTOSCALER_HCLOUD_SSH_KEY="define_it"
+```
+
+Now reload the systemd daemons and start the service:
+
+```bash
+sudo systemctl daemon-reload
+sudo systemctl enable woodpecker-autoscaler
+sudo systemctl start woodpecker-autoscaler
+```
+
+> Made with ♡ by the folkes at uploadfilter24.eu :)
--- a/chart/metallb-ip-floater/.helmignore
+++ b/chart/metallb-ip-floater/.helmignore
@ -0,0 +1,23 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/
--- a/chart/metallb-ip-floater/Chart.yaml
+++ b/chart/metallb-ip-floater/Chart.yaml
@ -0,0 +1,24 @@
+apiVersion: v2
+name: woodpecker-autoscaler
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.0.1
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "0.0.1"
--- a/chart/metallb-ip-floater/templates/NOTES.txt
+++ b/chart/metallb-ip-floater/templates/NOTES.txt
@ -0,0 +1,3 @@
+Service has been deployed
+export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "woodpecker-autoscaler.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+get logs: kubectl logs -f --namespace {{ .Release.Namespace }} $POD_NAME
--- a/chart/metallb-ip-floater/templates/_helpers.tpl
+++ b/chart/metallb-ip-floater/templates/_helpers.tpl
@ -0,0 +1,62 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "woodpecker-autoscaler.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "woodpecker-autoscaler.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "woodpecker-autoscaler.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "woodpecker-autoscaler.labels" -}}
+helm.sh/chart: {{ include "woodpecker-autoscaler.chart" . }}
+{{ include "woodpecker-autoscaler.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "woodpecker-autoscaler.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "woodpecker-autoscaler.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "woodpecker-autoscaler.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "woodpecker-autoscaler.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}
--- a/chart/metallb-ip-floater/templates/deployment.yaml
+++ b/chart/metallb-ip-floater/templates/deployment.yaml
@ -0,0 +1,68 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "woodpecker-autoscaler.fullname" . }}
+  labels:
+    {{- include "woodpecker-autoscaler.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "woodpecker-autoscaler.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "woodpecker-autoscaler.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "woodpecker-autoscaler.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          env:
+          {{- with .Values.env }}
+            {{- . | toYaml | trim | nindent 12 }}
+          {{- end }}
+          {{- if .Values.externalConfigSecret.enabled }}
+          envFrom:
+            - secretRef:
+                name: {{ .Values.externalConfigSecret.name }}
+          {{- end }}
+          ports:
+            - name: healthcheck
+              containerPort: 8080
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /health
+              port: healthcheck
+          readinessProbe:
+            httpGet:
+              path: /health
+              port: healthcheck
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
--- a/chart/metallb-ip-floater/templates/serviceaccount.yaml
+++ b/chart/metallb-ip-floater/templates/serviceaccount.yaml
@ -0,0 +1,12 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "woodpecker-autoscaler.serviceAccountName" . }}
+  labels:
+    {{- include "woodpecker-autoscaler.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}
--- a/chart/metallb-ip-floater/values.yaml
+++ b/chart/metallb-ip-floater/values.yaml
@ -0,0 +1,83 @@
+# Default values for woodpecker-autoscaler.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+image:
+  repository: lerentis/woodpecker-autoscaler
+  pullPolicy: Always
+  # Overrides the image tag whose default is the chart appVersion.
+  tag: "latest"
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
+podAnnotations: {}
+
+podSecurityContext: {}
+  # fsGroup: 2000
+
+securityContext: {}
+  # capabilities:
+  #   drop:
+  #   - ALL
+  # readOnlyRootFilesystem: true
+  # runAsNonRoot: true
+  # runAsUser: 1000
+
+env:
+  - name: WOODPECKER_AUTOSCALER_LOGLEVEL
+    value: "Info"
+  - name: WOODPECKER_AUTOSCALER_CHECK_INTERVAL
+    value: "15"
+  - name: WOODPECKER_AUTOSCALER_WOODPECKER_LABEL_SELECTOR
+    value: "uploadfilter24.eu/instance-role=Woodpecker"
+  - name: WOODPECKER_AUTOSCALER_WOODPECKER_INSTANCE
+    value: "define_it"
+  - name: WOODPECKER_AUTOSCALER_WOODPECKER_AGENT_SECRET
+    value: "define_it"
+  - name: WOODPECKER_AUTOSCALER_WOODPECKER_API_TOKEN
+    value: "define_it"
+  - name: WOODPECKER_AUTOSCALER_HCLOUD_TOKEN
+    value: "define_it"
+  - name: WOODPECKER_AUTOSCALER_HCLOUD_INSTANCE_TYPE
+    value: "cpx21"
+  - name: WOODPECKER_AUTOSCALER_HCLOUD_REGION
+    value: "define_it"
+  - name: WOODPECKER_AUTOSCALER_HCLOUD_DATACENTER
+    value: "define_it"
+  - name: WOODPECKER_AUTOSCALER_HCLOUD_SSH_KEY
+    value: "define_it"
+
+externalConfigSecret:
+  enabled: false
+  name: ""
+
+resources: {}
+  # We usually recommend not to specify default resources and to leave this as a conscious
+  # choice for the user. This also increases chances charts run on environments with little
+  # resources, such as Minikube. If you do want to specify resources, uncomment the following
+  # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
+  # limits:
+  #   cpu: 100m
+  #   memory: 128Mi
+  # requests:
+  #   cpu: 100m
+  #   memory: 128Mi
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}
--- a/cmd/woodpecker-autoscaler.go
+++ b/cmd/woodpecker-autoscaler.go
@ -42,6 +42,15 @@ func main() {
 				"Caller": "Main",
 			}).Fatal(fmt.Sprintf("Error checking woodpecker queue: %s", err.Error()))
 		}
+		ownedNodes, err := hetzner.ListAgents(cfg)
+		if err != nil {
+			log.WithFields(log.Fields{
+				"Caller": "Main",
+			}).Fatal(fmt.Sprintf("Error collecting owned hetzner nodes: %s", err.Error()))
+		}
+		log.WithFields(log.Fields{
+			"Caller": "Main",
+		}).Infof("Currently owning %d Agents", len(ownedNodes))
 		if pendingTasks {
 			server, err := hetzner.CreateNewAgent(cfg)
 			if err != nil {
@ -78,8 +87,17 @@ func main() {
 				log.WithFields(log.Fields{
 					"Caller": "Main",
 				}).Info("No tasks running. Will remove agents")
-				// TODO: iterate over agents and remove ours
-				// agent name should match hetzner name
+				for _, server := range ownedNodes {
+					hetzner.DecomNode(cfg, &server)
+					agentId, err := woodpecker.GetAgentIdByName(cfg, server.Name)
+					if err != nil {
+						log.WithFields(log.Fields{
+							"Caller": "Main",
+						}).Warnf("Could not find agent %s in woodpecker. Assuming it was never added", server.Name)
+					} else {
+						woodpecker.DecomAgent(cfg, agentId)
+					}
+				}
 			}
 		}
 		time.Sleep(time.Duration(cfg.CheckInterval) * time.Minute)
--- a/internal/config/config.go
+++ b/internal/config/config.go
@ -9,19 +9,19 @@ import (
 )

 type Config = struct {
-	LogLevel              string `default:"Info" env:"WOODPECKER_AUTOSCALER_LOGLEVEL"`
-	CheckInterval         int    `default:"15" env:"WOODPECKER_AUTOSCALER_CHECK_INTERVAL"`
-	LabelSelector         string `default:"uploadfilter24.eu/instance-role=Woodpecker" env:"WOODPECKER_AUTOSCALER_LABELSELECTOR"`
-	WoodpeckerInstance    string `default:"" env:"WOODPECKER_AUTOSCALER_WOODPECKER_INSTANCE"`
-	WoodpeckerAgentSecret string `default:"" env:"WOODPECKER_AUTOSCALER_WOODPECKER_AGENT_SECRET"`
-	WoodpeckerApiToken    string `default:"" env:"WOODPECKER_AUTOSCALER_WOODPECKER_API_TOKEN"`
-	Protocol              string `default:"http" env:"WOODPECKER_AUTOSCALER_PROTOCOL"`
-	HcloudToken           string `default:"" env:"WOODPECKER_AUTOSCALER_HCLOUD_TOKEN"`
-	InstanceType          string `default:"" env:"WOODPECKER_AUTOSCALER_INSTANCE_TYPE"`
-	Region                string `default:"" env:"WOODPECKER_AUTOSCALER_REGION"`
-	Datacenter            string `default:"" env:"WOODPECKER_AUTOSCALER_DATACENTER"`
-	DryRun                bool   `default:"false" env:"WOODPECKER_AUTOSCALER_DRY_RUN"`
-	SSHKey                string `default:"" env:"WOODPECKER_AUTOSCALER_SSH_KEY"`
+	LogLevel                string `default:"Info" env:"WOODPECKER_AUTOSCALER_LOGLEVEL"`
+	CheckInterval           int    `default:"15" env:"WOODPECKER_AUTOSCALER_CHECK_INTERVAL"`
+	DryRun                  bool   `default:"false" env:"WOODPECKER_AUTOSCALER_DRY_RUN"`
+	WoodpeckerLabelSelector string `default:"uploadfilter24.eu/instance-role=Woodpecker" env:"WOODPECKER_AUTOSCALER_WOODPECKER_LABEL_SELECTOR"`
+	WoodpeckerInstance      string `default:"" env:"WOODPECKER_AUTOSCALER_WOODPECKER_INSTANCE"`
+	WoodpeckerAgentSecret   string `default:"" env:"WOODPECKER_AUTOSCALER_WOODPECKER_AGENT_SECRET"`
+	WoodpeckerApiToken      string `default:"" env:"WOODPECKER_AUTOSCALER_WOODPECKER_API_TOKEN"`
+	WoodpeckerProtocol      string `default:"http" env:"WOODPECKER_AUTOSCALER_WOODPECKER_PROTOCOL"`
+	HcloudToken             string `default:"" env:"WOODPECKER_AUTOSCALER_HCLOUD_TOKEN"`
+	HcloudInstanceType      string `default:"cpx21" env:"WOODPECKER_AUTOSCALER_HCLOUD_INSTANCE_TYPE"`
+	HcloudRegion            string `default:"" env:"WOODPECKER_AUTOSCALER_HCLOUD_REGION"`
+	HcloudDatacenter        string `default:"" env:"WOODPECKER_AUTOSCALER_HCLOUD_DATACENTER"`
+	HcloudSSHKey            string `default:"" env:"WOODPECKER_AUTOSCALER_HCLOUD_SSH_KEY"`
 }

 func GenConfig() (cfg *Config, err error) {
--- a/internal/hetzner/hetzneragent.go
+++ b/internal/hetzner/hetzneragent.go
@ -46,7 +46,7 @@ func generateConfig(cfg *config.Config, name string) (string, error) {
 	envConfig := map[string]string{}
 	envConfig["WOODPECKER_SERVER"] = cfg.WoodpeckerInstance
 	envConfig["WOODPECKER_AGENT_SECRET"] = cfg.WoodpeckerAgentSecret
-	envConfig["WOODPECKER_FILTER_LABELS"] = cfg.LabelSelector
+	envConfig["WOODPECKER_FILTER_LABELS"] = cfg.WoodpeckerLabelSelector
 	envConfig["WOODPECKER_HOSTNAME"] = name
 	config := UserDataConfig{
 		Image:     "woodpeckerci/woodpecker-agent:latest",
@ -68,11 +68,11 @@ func CreateNewAgent(cfg *config.Config) (*hcloud.Server, error) {
 	client := hcloud.NewClient(hcloud.WithToken(cfg.HcloudToken))
 	name := fmt.Sprintf("woodpecker-autoscaler-agent-%s", utils.RandStringBytes(5))
 	userdata, err := generateConfig(cfg, name)
-	img, _, err := client.Image.GetByNameAndArchitecture(context.Background(), "docker", "amd64")
-	loc, _, err := client.Location.GetByName(context.Background(), cfg.Region)
-	pln, _, err := client.ServerType.GetByName(context.Background(), cfg.InstanceType)
-	key, _, err := client.SSHKey.GetByName(context.Background(), cfg.SSHKey)
-	dc, _, err := client.Datacenter.GetByName(context.Background(), cfg.Datacenter)
+	img, _, err := client.Image.GetByNameAndArchitecture(context.Background(), "docker-ce", "amd64")
+	loc, _, err := client.Location.GetByName(context.Background(), cfg.HcloudRegion)
+	pln, _, err := client.ServerType.GetByName(context.Background(), cfg.HcloudInstanceType)
+	key, _, err := client.SSHKey.GetByName(context.Background(), cfg.HcloudSSHKey)
+	dc, _, err := client.Datacenter.GetByName(context.Background(), cfg.HcloudDatacenter)
 	labels := map[string]string{}
 	labels["Role"] = "WoodpeckerAgent"
 	labels["ControledBy"] = "WoodpeckerAutoscaler"
@ -111,13 +111,19 @@ func ListAgents(cfg *config.Config) ([]hcloud.Server, error) {
 		val, exists := server.Labels["ControledBy"]
 		if exists && val == "WoodpeckerAutoscaler" {
 			myServers = append(myServers, *server)
+			log.WithFields(log.Fields{
+				"Caller": "ListAgents",
+			}).Debugf("Owning %s Hetzner node", server.Name)
 		}
 	}
 	return myServers, nil
 }

-func DecomAgent(cfg *config.Config, server *hcloud.Server) error {
+func DecomNode(cfg *config.Config, server *hcloud.Server) error {
 	client := hcloud.NewClient(hcloud.WithToken(cfg.HcloudToken))
+	log.WithFields(log.Fields{
+		"Caller": "DecomNode",
+	}).Debugf("Deleting %s node", server.Name)
 	_, _, err := client.Server.DeleteWithResult(context.Background(), server)
 	if err != nil {
 		return errors.New(fmt.Sprintf("Could not delete Agent: %s", err.Error()))
--- a/internal/woodpecker/agent.go
+++ b/internal/woodpecker/agent.go
@ -8,6 +8,8 @@ import (

 	"git.uploadfilter24.eu/covidnetes/woodpecker-autoscaler/internal/config"
 	"git.uploadfilter24.eu/covidnetes/woodpecker-autoscaler/internal/models"
+
+	log "github.com/sirupsen/logrus"
 )

 func DecomAgent(cfg *config.Config, agentId int) error {
@ -19,6 +21,10 @@ func DecomAgent(cfg *config.Config, agentId int) error {
 	req.Header.Set("Accept", "text/plain")
 	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", cfg.WoodpeckerApiToken))

+	log.WithFields(log.Fields{
+		"Caller": "DecomAgent",
+	}).Debugf("Deleting %d agent from woodpecker", agentId)
+
 	resp, err := http.DefaultClient.Do(req)
 	if err != nil {
 		return errors.New(fmt.Sprintf("Could not delete agent: %s", err.Error()))
@ -53,6 +59,9 @@ func GetAgentIdByName(cfg *config.Config, name string) (int, error) {

 	for _, agent := range agentList.Agents {
 		if agent.Name == name {
+			log.WithFields(log.Fields{
+				"Caller": "GetAgentIdByName",
+			}).Debugf("Found ID %d for Agent %s", agent.ID, name)
 			return int(agent.ID), nil
 		}
 	}
--- a/internal/woodpecker/metrics.go
+++ b/internal/woodpecker/metrics.go
@ -36,7 +36,7 @@ func QueueInfo(cfg *config.Config, target interface{}) error {
 }

 func CheckPending(cfg *config.Config) (bool, error) {
-	expectedKV := strings.Split(cfg.LabelSelector, "=")
+	expectedKV := strings.Split(cfg.WoodpeckerLabelSelector, "=")
 	queueInfo := new(models.QueueInfo)
 	err := QueueInfo(cfg, queueInfo)
 	if err != nil {