Job 无法访问特定域名

如果Gitlab Runner 通过Helm chart 部署到K8S 中，但出现无法访问特定域名的情况，则可以通过修改runners 配置，添加[[runners.kubernetes.host_aliases]] 配置即可：

[[runners]]
  # usual configuration
  executor = "kubernetes"
  [runners.kubernetes]
    [[runners.kubernetes.host_aliases]]
      ip = "127.0.0.1"
      hostnames = ["web1", "web2"]
    [[runners.kubernetes.host_aliases]]
      ip = "192.168.1.1"
      hostnames = ["web14", "web15"]

详情可参考：https://docs.gitlab.com/runner/executors/kubernetes.html#other-configtoml-settings

GitLab Runner 需要调度到指定节点

如果希望GitLab Runner 不影响其他业务，可以通过给节点打标签，然后指定节点调度即可：

runners:
  # runner configuration, where the multi line strings is evaluated as
  # template so you can specify helm values inside of it.
  #
  # tpl: https://helm.sh/docs/howto/charts_tips_and_tricks/#using-the-tpl-function
  # runner configuration: https://docs.gitlab.com/runner/configuration/advanced-configuration.html
  config: |
    [[runners]]
      [runners.kubernetes]
        namespace = "{{.Release.Namespace}}"
        [[runners.kubernetes.host_aliases]]
          ip = "10.1.3.215"
          hostnames = ["abcaf2.ccs.tencent-cloud.com"]
      [runners.kubernetes.node_selector]
        gitlab = "true"