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containerd配置.md

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containerd 配置

containerd 的配置文档在 ：https://github.com/containerd/containerd/blob/master/docs/man/containerd-config.toml.5.md

默认配置文件地址：/etc/containerd/config.toml

containerd 的参数 --config 决定了配置文件的地址。

root

存放数据的根目录，(Default: "/var/lib/containerd")

state

状态目录 ，(Default: "/run/containerd")

oom_score

应用于容器式守护进程的内存不足（OOM）分数（默认值：0）

imports

导入是要包括的其他配置文件的列表。这样可以拆分主配置文件，并分别保留一些部分(例如，供应商可以将自定义运行时配置保存在单独的文件中，而无需修改主config.toml)，

导入的文件将覆盖简单的字段，例如int或string（如果不为空），并将追加数组和映射字段。导入的文件也会进行版本控制，并且版本不能高于主配置。

grpc

gRPC socket 监听设置，包含三个字段

  • address (Default: "/run/containerd/containerd.sock")
  • uid (Default: 0)
  • gid (Default: 0)

debug

开启和配置 debug socket 监听设置，包含四个字段

  • address (Default: "/run/containerd/debug.sock")
  • uid (Default: 0)
  • gid (Default: 0)
  • level (Default: "info") sets the debug log level

metrics

监控指标配置

  • address (Default: "") 指标终结点默认情况下不监听
  • grpc_histogram (Default: false) 开启或关闭gRPC直方图指标

cgroup

Linux cgroup特定设置部分

path (Default: "") 为创建的容器指定自定义cgroup路径

plugins

插件部分包含已安装插件公开的配置选项。默认情况下，以下插件已启用，其设置如下所示。默认情况下未启用的插件将提供其自己的配置值文档。

  • [plugins.cgroup] has one option no_prometheus (Default: false)
  • [plugins.diff] has one option default, a list by default set to ["walking"]
  • [plugins.linux] has several options for configuring the runtime, shim, and related options: shim specifies the shim binary (Default: "containerd-shim"), runtime is the OCI compliant runtime binary (Default: "runc"), runtime_root is the root directory used by the runtime (Default: ""), no_shim specifies whether to use a shim or not (Default: false), shim_debug turns on debugging for the shim (Default: false)
  • [plugins.scheduler] has several options that perform advanced tuning for the scheduler: pause_threshold is the maximum amount of time GC should be scheduled (Default: 0.02), deletion_threshold guarantees GC is scheduled after n number of deletions (Default: 0 [not triggered]), mutation_threshold guarantees GC is scheduled after n number of database mutations (Default: 100), schedule_delay defines the delay after trigger event before scheduling a GC (Default "0ms" [immediate]), startup_delay defines the delay after startup before scheduling a GC (Default "100ms")