gitea-runner: create configmap for custom config, enable host networking within dind

gitea-runner/config.yaml

@@ -0,0 +1,40 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: runner-config
+data:
+  config.yaml: |-
+    log:
+      level: info
+    runner:
+      file: .runner
+      capacity: 1
+      env_file: .env
+      timeout: 3h
+      shutdown_timeout: 0s
+      insecure: false
+      fetch_timeout: 5s
+      fetch_interval: 2s
+      labels:
+        - "ubuntu-latest:docker://docker.gitea.com/runner-images:ubuntu-latest"
+        - "ubuntu-22.04:docker://docker.gitea.com/runner-images:ubuntu-22.04"
+        - "ubuntu-20.04:docker://docker.gitea.com/runner-images:ubuntu-20.04"
+    cache:
+      enabled: true
+      dir: ""
+      host: ""
+      port: 0
+      external_server: ""
+    container:
+      network: "host"
+      privileged: false
+      options:
+      workdir_parent:
+      valid_volumes: []
+      docker_host: ""
+      force_pull: true
+      force_rebuild: false
+      require_docker: false
+      docker_timeout: 0s
+    host:
+      workdir_parent: