aks-node-controller/proto/aksnodeconfig/v1/custom_linux_os_config.proto

syntax = "proto3";
package aksnodeconfig.v1;

option go_package = "github.com/Azure/agentbaker/aks-node-controller/pkg/gen/aksnodeconfig/v1;aksnodeconfigv1";

// Custom Linux Node OS Config
message CustomLinuxOsConfig {
  // Sysctl settings for Linux agent nodes
  SysctlConfig sysctl_config = 1;

  // Ulimit settings for Linux agent nodes
  UlimitConfig ulimit_config = 2;

  // Enable or disable swap configuration
  bool enable_swap_config = 3;

  // The size in MB of a swap file that will be created on each node
  int32 swap_file_size = 4;

  // Valid values are "always", "defer", "defer+madvise", "madvise" and "never"
  // If it's unset or set to empty string, it will use the default value in the VHD "always"
  string transparent_hugepage_support = 5;

  // Valid values are "always", "madvise" and "never"
  // If it's unset or set to empty string, it will use the default value in the VHD "madvise"
  string transparent_defrag = 6;
}

message SysctlConfig {
  // using optional here to allow detecting if the field is set or not (explicit presence in proto3)
  optional int32 net_core_somaxconn = 1;
  optional int32 net_core_netdev_max_backlog = 2;
  optional int32 net_core_rmem_default = 3;
  optional int32 net_core_rmem_max = 4;
  optional int32 net_core_wmem_default = 5;
  optional int32 net_core_wmem_max = 6;
  optional int32 net_core_optmem_max = 7;
  optional int32 net_ipv4_tcp_max_syn_backlog = 8;
  optional int32 net_ipv4_tcp_max_tw_buckets = 9;
  optional int32 net_ipv4_tcp_fin_timeout = 10;
  optional int32 net_ipv4_tcp_keepalive_time = 11;
  optional int32 net_ipv4_tcp_keepalive_probes = 12;
  optional int32 net_ipv4_tcpkeepalive_intvl = 13;
  optional bool net_ipv4_tcp_tw_reuse = 14;
  optional string net_ipv4_ip_local_port_range = 15;
  optional int32 net_ipv4_neigh_default_gc_thresh1 = 16;
  optional int32 net_ipv4_neigh_default_gc_thresh2 = 17;
  optional int32 net_ipv4_neigh_default_gc_thresh3 = 18;
  optional int32 net_netfilter_nf_conntrack_max = 19;
  optional int32 net_netfilter_nf_conntrack_buckets = 20;
  optional int32 fs_inotify_max_user_watches = 21;
  optional int32 fs_file_max = 22;
  optional int32 fs_aio_max_nr = 23;
  optional int32 fs_nr_open = 24;
  optional int32 kernel_threads_max = 25;
  optional int32 vm_max_map_count = 26;
  optional int32 vm_swappiness = 27;
  optional int32 vm_vfs_cache_pressure = 28;
}

message UlimitConfig {
  // using optional here to allow detecting if the field is set or not (explicit presence in proto3)
  optional string no_file = 1;
  optional string max_locked_memory = 2;
}