runtime: generate dedicated CLH Azure config variants

Create configuration-clh-azure{,-runtime-rs}.toml from the base CLH
configs during build.

This keeps Mariner-specific defaults in explicit config artifacts
instead of ad-hoc runtime mutation.

Signed-off-by: Fabiano Fidêncio <ffidencio@nvidia.com>
This commit is contained in:
Fabiano Fidêncio
2026-05-28 13:31:05 +02:00
parent a423cf9526
commit f36c383b4f
4 changed files with 1119 additions and 0 deletions

View File

@@ -291,9 +291,24 @@ ifneq (,$(CLHCMD))
CONFIGS += $(CONFIG_CLH)
CONFIG_FILE_CLH_AZURE = configuration-clh-azure-runtime-rs.toml
CONFIG_CLH_AZURE = config/$(CONFIG_FILE_CLH_AZURE)
CONFIG_CLH_AZURE_IN = $(CONFIG_CLH_AZURE).in
CONFIG_PATH_CLH_AZURE = $(abspath $(CONFDIR)/$(CONFIG_FILE_CLH_AZURE))
CONFIG_PATHS += $(CONFIG_PATH_CLH_AZURE)
SYSCONFIG_CLH_AZURE = $(abspath $(SYSCONFDIR)/$(CONFIG_FILE_CLH_AZURE))
SYSCONFIG_PATHS += $(SYSCONFIG_CLH_AZURE)
CONFIGS += $(CONFIG_CLH_AZURE)
# CLH-specific options (all should be suffixed by "_CLH")
# currently, huge pages are required for virtiofsd support
DEFNETWORKMODEL_CLH := tcfilter
IMAGEPATH_CLH_AZURE := $(PKGDATADIR)/kata-containers-mariner.img
KERNELPATH_CLH_AZURE := /usr/share/cloud-hypervisor/vmlinux.bin
DEFSTATICRESOURCEMGMT_CLH_AZURE := true
KERNELTYPE_CLH = uncompressed
KERNEL_NAME_CLH = $(call MAKE_KERNEL_NAME,$(KERNELTYPE_CLH))
KERNELPATH_CLH = $(KERNELDIR)/$(KERNEL_NAME_CLH)
@@ -596,6 +611,7 @@ USER_VARS += QEMUTDXPATH
USER_VARS += QEMUTDXVALIDHYPERVISORPATHS
USER_VARS += FIRMWAREPATH_CLH
USER_VARS += KERNELPATH_CLH
USER_VARS += KERNELPATH_CLH_AZURE
USER_VARS += FCCMD
USER_VARS += FCPATH
USER_VARS += FCVALIDHYPERVISORPATHS
@@ -608,6 +624,7 @@ USER_VARS += IMAGENAME
USER_VARS += IMAGENAME_NV
USER_VARS += IMAGECONFIDENTIALNAME
USER_VARS += IMAGEPATH
USER_VARS += IMAGEPATH_CLH_AZURE
USER_VARS += IMAGEPATH_NV
USER_VARS += IMAGECONFIDENTIALPATH
USER_VARS += INITRDNAME
@@ -711,6 +728,7 @@ USER_VARS += DEFENABLEVCPUSPINNING_QEMU
USER_VARS += DEFSTATICRESOURCEMGMT_DB
USER_VARS += DEFSTATICRESOURCEMGMT_FC
USER_VARS += DEFSTATICRESOURCEMGMT_CLH
USER_VARS += DEFSTATICRESOURCEMGMT_CLH_AZURE
USER_VARS += DEFSTATICRESOURCEMGMT_QEMU
USER_VARS += DEFSTATICRESOURCEMGMT_COCO
USER_VARS += DEFDISABLEIMAGENVDIMM

View File

@@ -0,0 +1,545 @@
# Copyright (c) 2022 Intel Corporation
#
# SPDX-License-Identifier: Apache-2.0
# XXX: WARNING: this file is auto-generated.
# XXX:
# XXX: Source file: "@CONFIG_CLH_AZURE_RUNTIME_RS_IN@"
# XXX: Project:
# XXX: Name: @PROJECT_NAME@
# XXX: Type: @PROJECT_TYPE@
[hypervisor.clh]
path = "@CLHPATH@"
kernel = "@KERNELPATH_CLH_AZURE@"
image = "@IMAGEPATH_CLH_AZURE@"
# rootfs filesystem type:
# - ext4 (default)
# - xfs
# - erofs
rootfs_type = @DEFROOTFSTYPE@
# Block storage driver to be used for the VM rootfs is backed
# by a block device.
#
# virtio-pmem is not supported with Cloud Hypervisor.
vm_rootfs_driver = "@VMROOTFSDRIVER_CLH@"
# Path to the firmware.
# If you want Cloud Hypervisor to use a specific firmware, set its path below.
firmware = "@FIRMWAREPATH@"
# List of valid annotation names for the hypervisor
# Each member of the list is a regular expression, which is the base name
# of the annotation, e.g. "path" for io.katacontainers.config.hypervisor.path"
enable_annotations = @DEFENABLEANNOTATIONS@
# List of valid annotations values for the hypervisor
# Each member of the list is a path pattern as described by glob(3).
# The default if not set is empty (all annotations rejected.)
# Your distribution recommends: @CLHVALIDHYPERVISORPATHS@
valid_hypervisor_paths = @CLHVALIDHYPERVISORPATHS@
# List of valid annotations values for ctlpath
# The default if not set is empty (all annotations rejected.)
# Your distribution recommends:
valid_ctlpaths = []
# Optional space-separated list of options to pass to the guest kernel.
# For example, use `kernel_params = "vsyscall=emulate"` if you are having
# trouble running pre-2.15 glibc.
#
# WARNING: - any parameter specified here will take priority over the default
# parameter value of the same name used to start the virtual machine.
# Do not set values here unless you understand the impact of doing so as you
# may stop the virtual machine from booting.
# To see the list of default parameters, enable hypervisor debug, create a
# container and look for 'default-kernel-parameters' log entries.
kernel_params = "@KERNELPARAMS@"
# Default number of vCPUs per SB/VM:
# unspecified or 0 --> will be set to 1
# < 0 --> will be set to the actual number of physical cores
# > 0 <= number of physical cores --> will be set to the specified number
# > number of physical cores --> will be set to the actual number of physical cores
default_vcpus = @DEFVCPUS@
# Default maximum number of vCPUs per SB/VM:
# unspecified or == 0 --> will be set to the actual number of physical cores or to the maximum number
# of vCPUs supported by KVM if that number is exceeded
# > 0 <= number of physical cores --> will be set to the specified number
# > number of physical cores --> will be set to the actual number of physical cores or to the maximum number
# of vCPUs supported by KVM if that number is exceeded
# WARNING: Depending of the architecture, the maximum number of vCPUs supported by KVM is used when
# the actual number of physical cores is greater than it.
# WARNING: Be aware that this value impacts the virtual machine's memory footprint and CPU
# the hotplug functionality. For example, `default_maxvcpus = 240` specifies that until 240 vCPUs
# can be added to a SB/VM, but the memory footprint will be big. Another example, with
# `default_maxvcpus = 8` the memory footprint will be small, but 8 will be the maximum number of
# vCPUs supported by the SB/VM. In general, we recommend that you do not edit this variable,
# unless you know what are you doing.
default_maxvcpus = @DEFMAXVCPUS@
# Default memory size in MiB for SB/VM.
# If unspecified then it will be set @DEFMEMSZ@ MiB.
default_memory = @DEFMEMSZ@
# Shared file system type:
# - virtio-fs
# - virtio-fs-nydus
# - none
shared_fs = "@DEFSHAREDFS_CLH_VIRTIOFS@"
# Path to vhost-user-fs daemon.
virtio_fs_daemon = "@DEFVIRTIOFSDAEMON@"
# Default size of DAX cache in MiB
virtio_fs_cache_size = @DEFVIRTIOFSCACHESIZE@
# Default size of virtqueues
virtio_fs_queue_size = @DEFVIRTIOFSQUEUESIZE@
# Extra args for virtiofsd daemon
#
# Format example:
# ["-o", "arg1=xxx,arg2", "-o", "hello world", "--arg3=yyy"]
# Examples:
# Set virtiofsd log level to debug : ["-o", "log_level=debug"] or ["-d"]
#
# see `virtiofsd -h` for possible options.
virtio_fs_extra_args = @DEFVIRTIOFSEXTRAARGS@
# Cache mode:
#
# - never
# Metadata, data, and pathname lookup are not cached in guest. They are
# always fetched from host and any changes are immediately pushed to host.
#
# - auto
# Metadata and pathname lookup cache expires after a configured amount of
# time (default is 1 second). Data is cached while the file is open (close
# to open consistency).
#
# - always
# Metadata, data, and pathname lookup are cached in guest and never expire.
virtio_fs_cache = "@DEFVIRTIOFSCACHE@"
# Bridges can be used to hot plug devices.
# Limitations:
# * Currently only pci bridges are supported
# * Until 30 devices per bridge can be hot plugged.
# * Until 5 PCI bridges can be cold plugged per VM.
# This limitation could be a bug in the kernel
# Default number of bridges per SB/VM:
# unspecified or 0 --> will be set to @DEFBRIDGES@
# > 1 <= 5 --> will be set to the specified number
# > 5 --> will be set to 5
default_bridges = @DEFBRIDGES@
# Reclaim guest freed memory.
# Enabling this will result in the VM balloon device having f_reporting=on set.
# Then the hypervisor will use it to reclaim guest freed memory.
# This is useful for reducing the amount of memory used by a VM.
# Enabling this feature may sometimes reduce the speed of memory access in
# the VM.
#
# Default false
reclaim_guest_freed_memory = false
# Block device driver to be used by the hypervisor when a container's storage
# is backed by a block device or a file. This driver facilitates attaching the
# storage directly to the guest VM.
block_device_driver = "virtio-blk-pci"
# Specifies cache-related options for block devices.
# Denotes whether use of O_DIRECT (bypass the host page cache) is enabled.
# Default false
block_device_cache_direct = false
# Bandwidth rate limiter options
#
# disk_rate_limiter_bw_max_rate controls disk I/O bandwidth (size in bits/sec
# for SB/VM).
# The same value is used for inbound and outbound bandwidth.
# Default 0-sized value means unlimited rate.
disk_rate_limiter_bw_max_rate = 0
# disk_rate_limiter_bw_one_time_burst increases the initial max rate and this
# initial extra credit does *NOT* affect the overall limit and can be used for
# an *initial* burst of data.
# This is *optional* and only takes effect if disk_rate_limiter_bw_max_rate is
# set to a non zero value.
disk_rate_limiter_bw_one_time_burst = 0
# Operation rate limiter options
#
# disk_rate_limiter_ops_max_rate controls disk I/O bandwidth (size in ops/sec
# for SB/VM).
# The same value is used for inbound and outbound bandwidth.
# Default 0-sized value means unlimited rate.
disk_rate_limiter_ops_max_rate = 0
# disk_rate_limiter_ops_one_time_burst increases the initial max rate and this
# initial extra credit does *NOT* affect the overall limit and can be used for
# an *initial* burst of data.
# This is *optional* and only takes effect if disk_rate_limiter_bw_max_rate is
# set to a non zero value.
disk_rate_limiter_ops_one_time_burst = 0
# Virtio queue size. Size: byte. default 128
queue_size = 128
# Block device multi-queue, default 1
num_queues = 1
# network_queues configures the number of virtio-net queue pairs (RX/TX) exposed to the guest.
# Setting network_queues = N creates N RX queues and N TX queues (i.e., N queue pairs).
# More queues can improve network throughput and reduce per-queue contention by allowing packet processing to scale
# across multiple vCPUs/threads (subject to host/guest capabilities and backend configuration such as vhost-net).
# Increasing this value consumes more resources (e.g., virtqueue state, interrupts/MSI-X vectors, backend threads),
# so it should typically not exceed the number of vCPUs or the practical parallelism of the networking backend.
# Default: 1, Range: 1..=256
network_queues = @DEFNETQUEUES@
# Enable pre allocation of VM RAM, default false
# Enabling this will result in lower container density
# as all of the memory will be allocated and locked
# This is useful when you want to reserve all the memory
# upfront or in the cases where you want memory latencies
# to be very predictable
# Default false
enable_mem_prealloc = false
# Enable huge pages for VM RAM, default false
# Enabling this will result in the VM memory
# being allocated using huge pages.
# This is useful when you want to use vhost-user network
# stacks within the container. This will automatically
# result in memory pre allocation
enable_hugepages = false
# Enable running clh VMM as a non-root user.
# By default clh VMM run as root. When this is set to true, clh VMM process runs as
# a non-root random user. See documentation for the limitations of this mode.
rootless = false
# Disable the 'seccomp' feature from Cloud Hypervisor, firecracker or dragonball, default false
disable_seccomp = false
# This option changes the default hypervisor and kernel parameters
# to enable debug output where available.
#
# Default false
enable_debug = false
# Disable the customizations done in the runtime when it detects
# that it is running on top a VMM. This will result in the runtime
# behaving as it would when running on bare metal.
#
disable_nesting_checks = false
# Path to OCI hook binaries in the *guest rootfs*.
# This does not affect host-side hooks which must instead be added to
# the OCI spec passed to the runtime.
#
# You can create a rootfs with hooks by customizing the osbuilder scripts:
# https://github.com/kata-containers/kata-containers/tree/main/tools/osbuilder
#
# Hooks must be stored in a subdirectory of guest_hook_path according to their
# hook type, i.e. "guest_hook_path/{prestart,poststart,poststop}".
# The agent will scan these directories for executable files and add them, in
# lexicographical order, to the lifecycle of the guest container.
# Hooks are executed in the runtime namespace of the guest. See the official documentation:
# https://github.com/opencontainers/runtime-spec/blob/v1.0.1/config.md#posix-platform-hooks
# Warnings will be logged if any error is encountered while scanning for hooks,
# but it will not abort container execution.
# Recommended value when enabling: "/usr/share/oci/hooks"
guest_hook_path = ""
# Enable swap in the guest. Default false.
# When enable_guest_swap is enabled, insert a raw file to the guest as the swap device.
enable_guest_swap = false
# If enable_guest_swap is enabled, the swap device will be created in the guest
# at this path. Default "/run/kata-containers/swap".
guest_swap_path = "/run/kata-containers/swap"
# The percentage of the total memory to be used as swap device.
# Default 100.
guest_swap_size_percent = 100
# The threshold in seconds to create swap device in the guest.
# Kata will wait guest_swap_create_threshold_secs seconds before creating swap device.
# Default 60.
guest_swap_create_threshold_secs = 60
[agent.@PROJECT_TYPE@]
container_pipe_size = @PIPESIZE@
# If enabled, make the agent display debug-level messages.
# (default: disabled)
enable_debug = false
# Enable agent tracing.
#
# If enabled, the agent will generate OpenTelemetry trace spans.
#
# Notes:
#
# - If the runtime also has tracing enabled, the agent spans will be
# associated with the appropriate runtime parent span.
# - If enabled, the runtime will wait for the container to shutdown,
# increasing the container shutdown time slightly.
#
# (default: disabled)
enable_tracing = false
# Enable debug console.
# If enabled, user can connect guest OS running inside hypervisor
# through "kata-runtime exec <sandbox-id>" command
debug_console_enabled = false
# Agent dial timeout in millisecond.
# (default: 10)
dial_timeout_ms = 10
# Agent reconnect timeout in millisecond.
# Retry times = reconnect_timeout_ms / dial_timeout_ms (default: 300)
# If you find pod cannot connect to the agent when starting, please
# consider increasing this value to increase the retry times.
# You'd better not change the value of dial_timeout_ms, unless you have an
# idea of what you are doing.
# (default: 3000)
reconnect_timeout_ms = 3000
# Create Container Request Timeout
# This timeout value is used to set the maximum duration for the agent to process a CreateContainerRequest.
# It's also used to ensure that workloads, especially those involving large image pulls within the guest,
# have sufficient time to complete.
#
# Effective Timeout Determination:
# The effective timeout for a CreateContainerRequest is determined by taking the minimum of the following two values:
# - create_container_timeout: The timeout value configured for creating containers (default: 30 seconds).
# - runtime-request-timeout: The timeout value specified in the Kubelet configuration described as the link below:
# (https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet/#:~:text=runtime%2Drequest%2Dtimeout)
# Defaults to @DEFCREATECONTAINERTIMEOUT@ second(s)
create_container_timeout = @DEFCREATECONTAINERTIMEOUT@
[agent.@PROJECT_TYPE@.mem_agent]
# Control the mem-agent function enable or disable.
# Default to false
mem_agent_enable = false
# Control the mem-agent memcg function disable or enable
# Default to false
memcg_disable = false
# Control the mem-agent function swap enable or disable.
# Default to false
memcg_swap = false
# Control the mem-agent function swappiness max number.
# Default to 50
memcg_swappiness_max = 50
# Control the mem-agent memcg function wait period seconds
# Default to 600
memcg_period_secs = 600
# Control the mem-agent memcg wait period PSI percent limit.
# If the percentage of memory and IO PSI stall time within
# the memcg waiting period for a cgroup exceeds this value,
# then the aging and eviction for this cgroup will not be
# executed after this waiting period.
# Default to 1
memcg_period_psi_percent_limit = 1
# Control the mem-agent memcg eviction PSI percent limit.
# If the percentage of memory and IO PSI stall time for a cgroup
# exceeds this value during an eviction cycle, the eviction for
# this cgroup will immediately stop and will not resume until
# the next memcg waiting period.
# Default to 1
memcg_eviction_psi_percent_limit = 1
# Control the mem-agent memcg eviction run aging count min.
# A cgroup will only perform eviction when the number of aging cycles
# in memcg is greater than or equal to memcg_eviction_run_aging_count_min.
# Default to 3
memcg_eviction_run_aging_count_min = 3
# Control the mem-agent compact function disable or enable
# Default to false
compact_disable = false
# Control the mem-agent compaction function wait period seconds
# Default to 600
compact_period_secs = 600
# Control the mem-agent compaction function wait period PSI percent limit.
# If the percentage of memory and IO PSI stall time within
# the compaction waiting period exceeds this value,
# then the compaction will not be executed after this waiting period.
# Default to 1
compact_period_psi_percent_limit = 1
# Control the mem-agent compaction function compact PSI percent limit.
# During compaction, the percentage of memory and IO PSI stall time
# is checked every second. If this percentage exceeds
# compact_psi_percent_limit, the compaction process will stop.
# Default to 5
compact_psi_percent_limit = 5
# Control the maximum number of seconds for each compaction of mem-agent compact function.
# Default to 300
compact_sec_max = 300
# Control the mem-agent compaction function compact order.
# compact_order is use with compact_threshold.
# Default to 9
compact_order = 9
# Control the mem-agent compaction function compact threshold.
# compact_threshold is the pages number.
# When examining the /proc/pagetypeinfo, if there's an increase in the
# number of movable pages of orders smaller than the compact_order
# compared to the amount following the previous compaction,
# and this increase surpasses a certain threshold—specifically,
# more than 'compact_threshold' number of pages.
# Or the number of free pages has decreased by 'compact_threshold'
# since the previous compaction.
# then the system should initiate another round of memory compaction.
# Default to 1024
compact_threshold = 1024
# Control the mem-agent compaction function force compact times.
# After one compaction, if there has not been a compaction within
# the next compact_force_times times, a compaction will be forced
# regardless of the system's memory situation.
# If compact_force_times is set to 0, will do force compaction each time.
# If compact_force_times is set to 18446744073709551615, will never do force compaction.
# Default to 18446744073709551615
# Note: Using a large but valid u64 value (within i64::MAX range) instead of u64::MAX to avoid TOML parser issues
# Using 9223372036854775807 (i64::MAX) which is effectively "never" for practical purposes
compact_force_times = 9223372036854775807
[runtime]
# If enabled, the runtime will log additional debug messages to the
# system log
# (default: disabled)
enable_debug = false
# If enabled, enabled, it means that 1) if the runtime exits abnormally,
# the cleanup process will be skipped, and 2) the runtime will not exit
# even if the health check fails.
# This option is typically used to retain abnormal information for debugging.
# (default: false)
keep_abnormal = false
# Internetworking model
# Determines how the VM should be connected to the
# the container network interface
# Options:
#
# - bridged (Deprecated)
# Uses a linux bridge to interconnect the container interface to
# the VM. Works for most cases except macvlan and ipvlan.
# ***NOTE: This feature has been deprecated with plans to remove this
# feature in the future. Please use other network models listed below.
#
#
# - macvtap
# Used when the Container network interface can be bridged using
# macvtap.
#
# - none
# Used when customize network. Only creates a tap device. No veth pair.
#
# - tcfilter
# Uses tc filter rules to redirect traffic from the network interface
# provided by plugin to a tap interface connected to the VM.
#
internetworking_model = "@DEFNETWORKMODEL_CLH@"
name = "@RUNTIMENAME@"
hypervisor_name = "@HYPERVISOR_NAME_CLH@"
agent_name = "@PROJECT_TYPE@"
# disable guest seccomp
# Determines whether container seccomp profiles are passed to the virtual
# machine and applied by the kata agent. If set to true, seccomp is not applied
# within the guest
# (default: true)
disable_guest_seccomp = @DEFDISABLEGUESTSECCOMP@
# If enabled, the runtime will create opentracing.io traces and spans.
# (See https://www.jaegertracing.io/docs/getting-started).
# (default: disabled)
enable_tracing = false
# Set the full url to the Jaeger HTTP Thrift collector.
# The default if not set will be "http://localhost:14268/api/traces"
jaeger_endpoint = ""
# Sets the username to be used if basic auth is required for Jaeger.
jaeger_user = ""
# Sets the password to be used if basic auth is required for Jaeger.
jaeger_password = ""
# If enabled, the runtime will not create a network namespace for shim and hypervisor processes.
# This option may have some potential impacts to your host. It should only be used when you know what you're doing.
# `disable_new_netns` conflicts with `internetworking_model=bridged` and `internetworking_model=macvtap`. It works only
# with `internetworking_model=none`. The tap device will be in the host network namespace and can connect to a bridge
# (like OVS) directly.
# (default: false)
disable_new_netns = false
# if enabled, the runtime will add all the kata processes inside one dedicated cgroup.
# The container cgroups in the host are not created, just one single cgroup per sandbox.
# The runtime caller is free to restrict or collect cgroup stats of the overall Kata sandbox.
# The sandbox cgroup path is the parent cgroup of a container with the PodSandbox annotation.
# The sandbox cgroup is constrained if there is no container type annotation.
# See: https://pkg.go.dev/github.com/kata-containers/kata-containers/src/runtime/virtcontainers#ContainerType
sandbox_cgroup_only = @DEFSANDBOXCGROUPONLY_CLH@
# Enabled experimental feature list, format: ["a", "b"].
# Experimental features are features not stable enough for production,
# they may break compatibility, and are prepared for a big version bump.
# Supported experimental features:
# (default: [])
experimental = @DEFAULTEXPFEATURES@
# If enabled, user can run pprof tools with shim v2 process through kata-monitor.
# (default: false)
enable_pprof = false
# If enabled, the runtime will attempt to determine appropriate sandbox size (memory, CPU) before booting the virtual machine. In
# this case, the runtime will not dynamically update the amount of memory and CPU in the virtual machine. This is generally helpful
# when a hardware architecture or hypervisor solutions is utilized which does not support CPU and/or memory hotplug.
# Compatibility for determining appropriate sandbox (VM) size:
# - When running with pods, sandbox sizing information will only be available if using Kubernetes >= 1.23 and containerd >= 1.6. CRI-O
# does not yet support sandbox sizing annotations.
# - When running single containers using a tool like ctr, container sizing information will be available.
static_sandbox_resource_mgmt = @DEFSTATICRESOURCEMGMT_CLH_AZURE@
# If specified, sandbox_bind_mounts identifieds host paths to be mounted(ro, rw) into the sandboxes shared path.
# This is only valid if filesystem sharing is utilized. The provided path(s) will be bindmounted into the shared fs directory.
# If defaults are utilized, these mounts should be available in the guest at `/run/kata-containers/shared/containers/sandbox-mounts`
# These will not be exposed to the container workloads, and are only provided for potential guest services.
# Now it supports three kinds of bind mount format:
# - "/path/to", default readonly mode.
# - "/path/to:ro", readonly mode.
# - "/path/to:rw", readwrite mode.
sandbox_bind_mounts = @DEFBINDMOUNTS@
# Base directory of directly attachable network config.
# Network devices for VM-based containers are allowed to be placed in the
# host netns to eliminate as many hops as possible, which is what we
# called a "Directly Attachable Network". The config, set by special CNI
# plugins, is used to tell the Kata containers what devices are attached
# to the hypervisor.
# (default: /run/kata-containers/dans)
dan_conf = "@DEFDANCONF@"

View File

@@ -539,9 +539,24 @@ ifneq (,$(CLHCMD))
CONFIGS += $(CONFIG_CLH)
CONFIG_FILE_CLH_AZURE = configuration-clh-azure.toml
CONFIG_CLH_AZURE = config/$(CONFIG_FILE_CLH_AZURE)
CONFIG_CLH_AZURE_IN = $(CONFIG_CLH_AZURE).in
CONFIG_PATH_CLH_AZURE = $(abspath $(CONFDIR)/$(CONFIG_FILE_CLH_AZURE))
CONFIG_PATHS += $(CONFIG_PATH_CLH_AZURE)
SYSCONFIG_CLH_AZURE = $(abspath $(SYSCONFDIR)/$(CONFIG_FILE_CLH_AZURE))
SYSCONFIG_PATHS += $(SYSCONFIG_CLH_AZURE)
CONFIGS += $(CONFIG_CLH_AZURE)
# CLH-specific options (all should be suffixed by "_CLH")
# currently, huge pages are required for virtiofsd support
DEFNETWORKMODEL_CLH := tcfilter
IMAGEPATH_CLH_AZURE := $(PKGDATADIR)/kata-containers-mariner.img
KERNELPATH_CLH_AZURE := /usr/share/cloud-hypervisor/vmlinux.bin
DEFSTATICRESOURCEMGMT_CLH_AZURE := true
KERNELTYPE_CLH = uncompressed
KERNEL_NAME_CLH = $(call MAKE_KERNEL_NAME,$(KERNELTYPE_CLH))
KERNELPATH_CLH = $(KERNELDIR)/$(KERNEL_NAME_CLH)
@@ -666,6 +681,7 @@ USER_VARS += SYSCONFIG
USER_VARS += IMAGENAME
USER_VARS += IMAGECONFIDENTIALNAME
USER_VARS += IMAGEPATH
USER_VARS += IMAGEPATH_CLH_AZURE
USER_VARS += IMAGECONFIDENTIALPATH
USER_VARS += INITRDNAME
USER_VARS += INITRDCONFIDENTIALNAME
@@ -704,6 +720,7 @@ USER_VARS += KERNELCONFIDENTIALPATH
USER_VARS += KERNELCONFIDENTIALPATH_CCA
USER_VARS += KERNELSEPATH
USER_VARS += KERNELPATH_CLH
USER_VARS += KERNELPATH_CLH_AZURE
USER_VARS += KERNELPATH_FC
USER_VARS += KERNELPATH_STRATOVIRT
USER_VARS += KERNELVIRTIOFSPATH
@@ -811,6 +828,7 @@ USER_VARS += DEFSANDBOXCGROUPONLY
USER_VARS += DEFSTATICRESOURCEMGMT
USER_VARS += DEFSTATICRESOURCEMGMT_QEMU
USER_VARS += DEFSTATICRESOURCEMGMT_CLH
USER_VARS += DEFSTATICRESOURCEMGMT_CLH_AZURE
USER_VARS += DEFSTATICRESOURCEMGMT_FC
USER_VARS += DEFSTATICRESOURCEMGMT_STRATOVIRT
USER_VARS += DEFSTATICRESOURCEMGMT_TEE

View File

@@ -0,0 +1,538 @@
# Copyright (c) 2019 Ericsson Eurolab Deutschland GmbH
# Copyright (c) 2021 Adobe Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
# XXX: WARNING: this file is auto-generated.
# XXX:
# XXX: Source file: "@CONFIG_CLH_AZURE_IN@"
# XXX: Project:
# XXX: Name: @PROJECT_NAME@
# XXX: Type: @PROJECT_TYPE@
[hypervisor.clh]
path = "@CLHPATH@"
kernel = "@KERNELPATH_CLH_AZURE@"
image = "@IMAGEPATH_CLH_AZURE@"
# rootfs filesystem type:
# - ext4 (default)
# - xfs
# - erofs
rootfs_type = @DEFROOTFSTYPE@
# Enable running clh VMM as a non-root user.
# By default clh VMM run as root. When this is set to true, clh VMM process runs as
# a non-root random user. See documentation for the limitations of this mode.
rootless = false
# disable applying SELinux on the VMM process (default false)
disable_selinux = @DEFDISABLESELINUX@
# disable applying SELinux on the container process
# If set to false, the type `container_t` is applied to the container process by default.
# Note: To enable guest SELinux, the guest rootfs must be CentOS that is created and built
# with `SELINUX=yes`.
# (default: true)
disable_guest_selinux = @DEFDISABLEGUESTSELINUX@
# Path to the firmware.
# If you want Cloud Hypervisor to use a specific firmware, set its path below.
# This is option is only used when confidential_guest is enabled.
#
# For more information about firmwared that can be used with specific TEEs,
# please, refer to:
# * Intel TDX:
# - td-shim: https://github.com/confidential-containers/td-shim
#
# firmware = "@FIRMWAREPATH@"
# List of valid annotation names for the hypervisor
# Each member of the list is a regular expression, which is the base name
# of the annotation, e.g. "path" for io.katacontainers.config.hypervisor.path"
enable_annotations = @DEFENABLEANNOTATIONS@
# List of valid annotations values for the hypervisor
# Each member of the list is a path pattern as described by glob(3).
# The default if not set is empty (all annotations rejected.)
# Your distribution recommends: @CLHVALIDHYPERVISORPATHS@
valid_hypervisor_paths = @CLHVALIDHYPERVISORPATHS@
# Optional space-separated list of options to pass to the guest kernel.
# For example, use `kernel_params = "vsyscall=emulate"` if you are having
# trouble running pre-2.15 glibc.
#
# WARNING: - any parameter specified here will take priority over the default
# parameter value of the same name used to start the virtual machine.
# Do not set values here unless you understand the impact of doing so as you
# may stop the virtual machine from booting.
# To see the list of default parameters, enable hypervisor debug, create a
# container and look for 'default-kernel-parameters' log entries.
kernel_params = "@KERNELPARAMS@"
# Default number of vCPUs per SB/VM:
# unspecified or 0 --> will be set to @DEFVCPUS@
# < 0 --> will be set to the actual number of physical cores
# > 0 <= number of physical cores --> will be set to the specified number
# > number of physical cores --> will be set to the actual number of physical cores
default_vcpus = 1
# Default maximum number of vCPUs per SB/VM:
# unspecified or == 0 --> will be set to the actual number of physical cores or to the maximum number
# of vCPUs supported by KVM if that number is exceeded
# > 0 <= number of physical cores --> will be set to the specified number
# > number of physical cores --> will be set to the actual number of physical cores or to the maximum number
# of vCPUs supported by KVM if that number is exceeded
# WARNING: Depending of the architecture, the maximum number of vCPUs supported by KVM is used when
# the actual number of physical cores is greater than it.
# WARNING: Be aware that this value impacts the virtual machine's memory footprint and CPU
# the hotplug functionality. For example, `default_maxvcpus = 240` specifies that until 240 vCPUs
# can be added to a SB/VM, but the memory footprint will be big. Another example, with
# `default_maxvcpus = 8` the memory footprint will be small, but 8 will be the maximum number of
# vCPUs supported by the SB/VM. In general, we recommend that you do not edit this variable,
# unless you know what are you doing.
default_maxvcpus = @DEFMAXVCPUS@
# Default memory size in MiB for SB/VM.
# If unspecified then it will be set @DEFMEMSZ@ MiB.
default_memory = @DEFMEMSZ@
# Default memory slots per SB/VM.
# If unspecified then it will be set @DEFMEMSLOTS@.
# This is will determine the times that memory will be hotadded to sandbox/VM.
memory_slots = @DEFMEMSLOTS@
# Default maximum memory in MiB per SB / VM
# unspecified or == 0 --> will be set to the actual amount of physical RAM
# > 0 <= amount of physical RAM --> will be set to the specified number
# > amount of physical RAM --> will be set to the actual amount of physical RAM
default_maxmemory = @DEFMAXMEMSZ@
# Disable hotplugging host block devices to guest VMs for container rootfs.
# In case of a storage driver like devicemapper where a container's
# root file system is backed by a block device, the block device is passed
# directly to the hypervisor for performance reasons.
# This flag prevents the block device from being passed to the hypervisor,
# virtio-fs is used instead to pass the rootfs.
# WARNING:
# Don't set this flag to false if you don't understand well the behavior of
# your container runtime and image snapshotter. Some snapshotters might use
# container image storage devices that are not meant to be hotplugged into a
# guest VM - e.g., because they contain files used by the host or by other
# guests.
disable_block_device_use = @DEFDISABLEBLOCK@
# Shared file system type:
# - virtio-fs (default)
# - virtio-fs-nydus
# - none
shared_fs = "@DEFSHAREDFS_CLH_VIRTIOFS@"
# Path to vhost-user-fs daemon.
virtio_fs_daemon = "@DEFVIRTIOFSDAEMON@"
# List of valid annotations values for the virtiofs daemon
# The default if not set is empty (all annotations rejected.)
# Your distribution recommends: @DEFVALIDVIRTIOFSDAEMONPATHS@
valid_virtio_fs_daemon_paths = @DEFVALIDVIRTIOFSDAEMONPATHS@
# Default size of DAX cache in MiB
virtio_fs_cache_size = @DEFVIRTIOFSCACHESIZE@
# Default size of virtqueues
virtio_fs_queue_size = @DEFVIRTIOFSQUEUESIZE@
# Extra args for virtiofsd daemon
#
# Format example:
# ["--arg1=xxx", "--arg2=yyy"]
# Examples:
# Set virtiofsd log level to debug : ["--log-level=debug"]
# see `virtiofsd -h` for possible options.
virtio_fs_extra_args = @DEFVIRTIOFSEXTRAARGS@
# Cache mode:
#
# - never
# Metadata, data, and pathname lookup are not cached in guest. They are
# always fetched from host and any changes are immediately pushed to host.
#
# - metadata
# Metadata and pathname lookup are cached in guest and never expire.
# Data is never cached in guest.
#
# - auto
# Metadata and pathname lookup cache expires after a configured amount of
# time (default is 1 second). Data is cached while the file is open (close
# to open consistency).
#
# - always
# Metadata, data, and pathname lookup are cached in guest and never expire.
virtio_fs_cache = "@DEFVIRTIOFSCACHE@"
# Block storage driver to be used for the hypervisor in case the container
# rootfs is backed by a block device. This is virtio-blk.
block_device_driver = "virtio-blk"
# Specifies cache-related options will be set to block devices or not.
# Default false
block_device_cache_set = false
# Specifies cache-related options for block devices.
# Denotes whether use of O_DIRECT (bypass the host page cache) is enabled.
# Default false
block_device_cache_direct = false
# Reclaim guest freed memory.
# Enabling this will result in the VM balloon device having f_reporting=on set.
# Then the hypervisor will use it to reclaim guest freed memory.
# This is useful for reducing the amount of memory used by a VM.
# Enabling this feature may sometimes reduce the speed of memory access in
# the VM.
#
# Default false
reclaim_guest_freed_memory = false
# Enable huge pages for VM RAM, default false
# Enabling this will result in the VM memory
# being allocated using huge pages.
enable_hugepages = false
# Disable the 'seccomp' feature from Cloud Hypervisor, default false
disable_seccomp = false
# Enable vIOMMU, default false
# Enabling this will result in the VM having a vIOMMU device
# This will also add the following options to the kernel's
# command line: iommu=pt
enable_iommu = false
# This option changes the default hypervisor and kernel parameters
# to enable debug output where available.
#
# Default false
enable_debug = false
# This option specifies the loglevel of the hypervisor
#
# Default 1
hypervisor_loglevel = 1
# If false and nvdimm is supported, use nvdimm device to plug guest image.
# Otherwise virtio-block device is used.
#
# nvdimm is not supported with Cloud Hypervisor or when `confidential_guest = true`.
disable_image_nvdimm = @DEFDISABLEIMAGENVDIMM_CLH@
# Enable hot-plugging of VFIO devices to a root-port.
# The default setting is "no-port"
hot_plug_vfio = "no-port"
# In a confidential compute environment hot-plugging can compromise
# security.
# Enable cold-plugging of VFIO devices to a root-port.
# The default setting is "no-port", which means disabled.
cold_plug_vfio = "no-port"
# Path to OCI hook binaries in the *guest rootfs*.
# This does not affect host-side hooks which must instead be added to
# the OCI spec passed to the runtime.
#
# You can create a rootfs with hooks by customizing the osbuilder scripts:
# https://github.com/kata-containers/kata-containers/tree/main/tools/osbuilder
#
# Hooks must be stored in a subdirectory of guest_hook_path according to their
# hook type, i.e. "guest_hook_path/{prestart,poststart,poststop}".
# The agent will scan these directories for executable files and add them, in
# lexicographical order, to the lifecycle of the guest container.
# Hooks are executed in the runtime namespace of the guest. See the official documentation:
# https://github.com/opencontainers/runtime-spec/blob/v1.0.1/config.md#posix-platform-hooks
# Warnings will be logged if any error is encountered while scanning for hooks,
# but it will not abort container execution.
guest_hook_path = ""
#
# These options are related to network rate limiter at the VMM level, and are
# based on the Cloud Hypervisor I/O throttling. Those are disabled by default
# and we strongly advise users to refer the Cloud Hypervisor official
# documentation for a better understanding of its internals:
# https://github.com/cloud-hypervisor/cloud-hypervisor/blob/main/docs/io_throttling.md
#
# Bandwidth rate limiter options
#
# net_rate_limiter_bw_max_rate controls network I/O bandwidth (size in bits/sec
# for SB/VM).
# The same value is used for inbound and outbound bandwidth.
# Default 0-sized value means unlimited rate.
net_rate_limiter_bw_max_rate = 0
#
# net_rate_limiter_bw_one_time_burst increases the initial max rate and this
# initial extra credit does *NOT* affect the overall limit and can be used for
# an *initial* burst of data.
# This is *optional* and only takes effect if net_rate_limiter_bw_max_rate is
# set to a non zero value.
net_rate_limiter_bw_one_time_burst = 0
#
# Operation rate limiter options
#
# net_rate_limiter_ops_max_rate controls network I/O bandwidth (size in ops/sec
# for SB/VM).
# The same value is used for inbound and outbound bandwidth.
# Default 0-sized value means unlimited rate.
net_rate_limiter_ops_max_rate = 0
#
# net_rate_limiter_ops_one_time_burst increases the initial max rate and this
# initial extra credit does *NOT* affect the overall limit and can be used for
# an *initial* burst of data.
# This is *optional* and only takes effect if net_rate_limiter_bw_max_rate is
# set to a non zero value.
net_rate_limiter_ops_one_time_burst = 0
#
# These options are related to disk rate limiter at the VMM level, and are
# based on the Cloud Hypervisor I/O throttling. Those are disabled by default
# and we strongly advise users to refer the Cloud Hypervisor official
# documentation for a better understanding of its internals:
# https://github.com/cloud-hypervisor/cloud-hypervisor/blob/main/docs/io_throttling.md
#
# Bandwidth rate limiter options
#
# disk_rate_limiter_bw_max_rate controls disk I/O bandwidth (size in bits/sec
# for SB/VM).
# The same value is used for inbound and outbound bandwidth.
# Default 0-sized value means unlimited rate.
disk_rate_limiter_bw_max_rate = 0
#
# disk_rate_limiter_bw_one_time_burst increases the initial max rate and this
# initial extra credit does *NOT* affect the overall limit and can be used for
# an *initial* burst of data.
# This is *optional* and only takes effect if disk_rate_limiter_bw_max_rate is
# set to a non zero value.
disk_rate_limiter_bw_one_time_burst = 0
#
# Operation rate limiter options
#
# disk_rate_limiter_ops_max_rate controls disk I/O bandwidth (size in ops/sec
# for SB/VM).
# The same value is used for inbound and outbound bandwidth.
# Default 0-sized value means unlimited rate.
disk_rate_limiter_ops_max_rate = 0
#
# disk_rate_limiter_ops_one_time_burst increases the initial max rate and this
# initial extra credit does *NOT* affect the overall limit and can be used for
# an *initial* burst of data.
# This is *optional* and only takes effect if disk_rate_limiter_bw_max_rate is
# set to a non zero value.
disk_rate_limiter_ops_one_time_burst = 0
[agent.@PROJECT_TYPE@]
# If enabled, make the agent display debug-level messages.
# (default: disabled)
enable_debug = false
# Enable agent tracing.
#
# If enabled, the agent will generate OpenTelemetry trace spans.
#
# Notes:
#
# - If the runtime also has tracing enabled, the agent spans will be
# associated with the appropriate runtime parent span.
# - If enabled, the runtime will wait for the container to shutdown,
# increasing the container shutdown time slightly.
#
# (default: disabled)
enable_tracing = false
# Enable debug console.
# If enabled, user can connect guest OS running inside hypervisor
# through "kata-runtime exec <sandbox-id>" command
debug_console_enabled = false
# Agent connection dialing timeout value in seconds
# (default: 45)
dial_timeout = 45
# Confidential Data Hub API timeout value in seconds
# (default: 50)
cdh_api_timeout = 50
[runtime]
# If enabled, the runtime will log additional debug messages to the
# system log
# (default: disabled)
enable_debug = false
#
# Internetworking model
# Determines how the VM should be connected to the
# the container network interface
# Options:
#
# - macvtap
# Used when the Container network interface can be bridged using
# macvtap.
#
# - none
# Used when customize network. Only creates a tap device. No veth pair.
#
# - tcfilter
# Uses tc filter rules to redirect traffic from the network interface
# provided by plugin to a tap interface connected to the VM.
#
internetworking_model = "@DEFNETWORKMODEL_CLH@"
# disable guest seccomp
# Determines whether container seccomp profiles are passed to the virtual
# machine and applied by the kata agent. If set to true, seccomp is not applied
# within the guest
# (default: true)
disable_guest_seccomp = @DEFDISABLEGUESTSECCOMP@
# Apply a custom SELinux security policy to the container process inside the VM.
# This is used when you want to apply a type other than the default `container_t`,
# so general users should not uncomment and apply it.
# (format: "user:role:type")
# Note: You cannot specify MCS policy with the label because the sensitivity levels and
# categories are determined automatically by high-level container runtimes such as containerd.
# Example value when enabling: "system_u:system_r:container_t"
guest_selinux_label = "@DEFGUESTSELINUXLABEL@"
# If enabled, the runtime will create opentracing.io traces and spans.
# (See https://www.jaegertracing.io/docs/getting-started).
# (default: disabled)
enable_tracing = false
# Set the full url to the Jaeger HTTP Thrift collector.
# The default if not set will be "http://localhost:14268/api/traces"
jaeger_endpoint = ""
# Sets the username to be used if basic auth is required for Jaeger.
jaeger_user = ""
# Sets the password to be used if basic auth is required for Jaeger.
jaeger_password = ""
# If enabled, the runtime will not create a network namespace for shim and hypervisor processes.
# This option may have some potential impacts to your host. It should only be used when you know what you're doing.
# `disable_new_netns` conflicts with `internetworking_model=tcfilter` and `internetworking_model=macvtap`. It works only
# with `internetworking_model=none`. The tap device will be in the host network namespace and can connect to a bridge
# (like OVS) directly.
# (default: false)
disable_new_netns = false
# if enabled, the runtime will add all the kata processes inside one dedicated cgroup.
# The container cgroups in the host are not created, just one single cgroup per sandbox.
# The runtime caller is free to restrict or collect cgroup stats of the overall Kata sandbox.
# The sandbox cgroup path is the parent cgroup of a container with the PodSandbox annotation.
# The sandbox cgroup is constrained if there is no container type annotation.
# See: https://pkg.go.dev/github.com/kata-containers/kata-containers/src/runtime/virtcontainers#ContainerType
sandbox_cgroup_only = @DEFSANDBOXCGROUPONLY@
# If enabled, the runtime will attempt to determine appropriate sandbox size (memory, CPU) before booting the virtual machine. In
# this case, the runtime will not dynamically update the amount of memory and CPU in the virtual machine. This is generally helpful
# when a hardware architecture or hypervisor solutions is utilized which does not support CPU and/or memory hotplug.
# Compatibility for determining appropriate sandbox (VM) size:
# - When running with pods, sandbox sizing information will only be available if using Kubernetes >= 1.23 and containerd >= 1.6. CRI-O
# does not yet support sandbox sizing annotations.
# - When running single containers using a tool like ctr, container sizing information will be available.
static_sandbox_resource_mgmt = @DEFSTATICRESOURCEMGMT_CLH_AZURE@
# If specified, sandbox_bind_mounts identifieds host paths to be mounted (ro) into the sandboxes shared path.
# This is only valid if filesystem sharing is utilized. The provided path(s) will be bindmounted into the shared fs directory.
# If defaults are utilized, these mounts should be available in the guest at `/run/kata-containers/shared/containers/sandbox-mounts`
# These will not be exposed to the container workloads, and are only provided for potential guest services.
sandbox_bind_mounts = @DEFBINDMOUNTS@
# VFIO Mode
# Determines how VFIO devices should be be presented to the container.
# Options:
#
# - vfio
# Matches behaviour of OCI runtimes (e.g. runc) as much as
# possible. VFIO devices will appear in the container as VFIO
# character devices under /dev/vfio. The exact names may differ
# from the host (they need to match the VM's IOMMU group numbers
# rather than the host's)
#
# - guest-kernel
# This is a Kata-specific behaviour that's useful in certain cases.
# The VFIO device is managed by whatever driver in the VM kernel
# claims it. This means it will appear as one or more device nodes
# or network interfaces depending on the nature of the device.
# Using this mode requires specially built workloads that know how
# to locate the relevant device interfaces within the VM.
#
vfio_mode = "@DEFVFIOMODE@"
# If enabled, the runtime will not create Kubernetes emptyDir mounts on the guest filesystem. Instead, emptyDir mounts will
# be created on the host and shared via virtio-fs. This is potentially slower, but allows sharing of files from host to guest.
disable_guest_empty_dir = @DEFDISABLEGUESTEMPTYDIR@
# Specifies how Kubernetes emptyDir volumes are handled.
# Options:
#
# - shared-fs (default)
# Shares the emptyDir folder with the guest using the method given
# by the `shared_fs` setting.
#
# - block-encrypted
# Plugs a block device to be encrypted in the guest.
#
emptydir_mode = "@DEFEMPTYDIRMODE@"
# Enabled experimental feature list, format: ["a", "b"].
# Experimental features are features not stable enough for production,
# they may break compatibility, and are prepared for a big version bump.
# Supported experimental features:
# (default: [])
experimental = @DEFAULTEXPFEATURES@
# If enabled, user can run pprof tools with shim v2 process through kata-monitor.
# (default: false)
enable_pprof = false
# Indicates the CreateContainer request timeout needed for the workload(s)
# It using guest_pull this includes the time to pull the image inside the guest
# Defaults to @DEFCREATECONTAINERTIMEOUT@ second(s)
# Note: The effective timeout is determined by the lesser of two values: runtime-request-timeout from kubelet config
# (https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet/#:~:text=runtime%2Drequest%2Dtimeout) and create_container_timeout.
# In essence, the timeout used for guest pull=runtime-request-timeout<create_container_timeout?runtime-request-timeout:create_container_timeout.
create_container_timeout = @DEFCREATECONTAINERTIMEOUT@
# Base directory of directly attachable network config.
# Network devices for VM-based containers are allowed to be placed in the
# host netns to eliminate as many hops as possible, which is what we
# called a "Directly Attachable Network". The config, set by special CNI
# plugins, is used to tell the Kata containers what devices are attached
# to the hypervisor.
# (default: /run/kata-containers/dans)
dan_conf = "@DEFDANCONF@"
# kubelet_root_dir is the kubelet root directory used to match ConfigMap/Secret
# volume paths for propagation. Override for distros that use a different path
# (e.g. k0s: /var/lib/k0s/kubelet).
kubelet_root_dir = "@DEFKUBELETROOTDIR@"
# pod_resource_api_sock specifies the unix socket for the Kubelet's
# PodResource API endpoint. If empty, kubernetes based cold plug
# will not be attempted. In order for this feature to work, the
# KubeletPodResourcesGet featureGate must be enabled in Kubelet,
# if using Kubelet older than 1.34.
#
# The pod resource API's socket is relative to the Kubelet's root-dir,
# which is defined by the cluster admin, and its location is:
# ${KubeletRootDir}/pod-resources/kubelet.sock
#
# The pod resource API's socket is relative to the Kubelet's root-dir,
# which is defined by the cluster admin, and its location is:
# ${KubeletRootDir}/pod-resources/kubelet.sock
#
# cold_plug_vfio(see hypervisor config) acts as a feature gate:
# cold_plug_vfio = no_port (default) => no cold plug
# cold_plug_vfio != no_port AND pod_resource_api_sock = "" => need
# explicit CDI annotation for cold plug (applies mainly
# to non-k8s cases)
# cold_plug_vfio != no_port AND pod_resource_api_sock != "" => kubelet
# based cold plug.
pod_resource_api_sock = "@DEFPODRESOURCEAPISOCK@"