# The containers configuration file specifies all of the available configuration

# command-line options/flags for container engine tools like Podman & Buildah,

# but in a TOML format that can be easily modified and versioned.

# Please refer to containers.conf(5) for details of all configuration options.

# Not all container engines implement all of the options.

# All of the options have hard coded defaults and these options will override

# the built in defaults. Users can then override these options via the command

# line. Container engines will read containers.conf files in up to three

# locations in the following order:

#  1. /usr/share/containers/containers.conf

#  2. /etc/containers/containers.conf

#  3. $HOME/.config/containers/containers.conf (Rootless containers ONLY)

#  Items specified in the latter containers.conf, if they exist, override the

# previous containers.conf settings, or the default settings.

[containers]

# List of annotation. Specified as

# "key = value"

# If it is empty or commented out, no annotations will be added

#

#annotations = []

# Used to change the name of the default AppArmor profile of container engine.

#

#apparmor_profile = "container-default"

# The hosts entries from the base hosts file are added to the containers hosts

# file. This must be either an absolute path or as special values "image" which

# uses the hosts file from the container image or "none" which means

# no base hosts file is used. The default is "" which will use /etc/hosts.

#

#base_hosts_file = ""

# Default way to to create a cgroup namespace for the container

# Options are:

# `private` Create private Cgroup Namespace for the container.

# `host`    Share host Cgroup Namespace with the container.

#

#cgroupns = "private"

# Control container cgroup configuration

# Determines  whether  the  container will create CGroups.

# Options are:

# `enabled`   Enable cgroup support within container

# `disabled`  Disable cgroup support, will inherit cgroups from parent

# `no-conmon` Do not create a cgroup dedicated to conmon.

#

#cgroups = "enabled"

# List of default capabilities for containers. If it is empty or commented out,

# the default capabilities defined in the container engine will be added.

#

#default_capabilities = [

#  "CHOWN",

#  "DAC_OVERRIDE",

#  "FOWNER",

#  "FSETID",

#  "KILL",

#  "NET_BIND_SERVICE",

#  "SETFCAP",

#  "SETGID",

#  "SETPCAP",

#  "SETUID",

#]

# A list of sysctls to be set in containers by default,

# specified as "name=value",

# for example:"net.ipv4.ping_group_range=0 0".

#

default_sysctls = [

  "net.ipv4.ping_group_range=0 0",

]

# A list of ulimits to be set in containers by default, specified as

# "<ulimit name>=<soft limit>:<hard limit>", for example:

# "nofile=1024:2048"

# See setrlimit(2) for a list of resource names.

# Any limit not specified here will be inherited from the process launching the

# container engine.

# Ulimits has limits for non privileged container engines.

#

#default_ulimits = [

#  "nofile=1280:2560",

#]

# List of devices. Specified as

# "<device-on-host>:<device-on-container>:<permissions>", for example:

# "/dev/sdc:/dev/xvdc:rwm".

# If it is empty or commented out, only the default devices will be used

#

#devices = []

# List of default DNS options to be added to /etc/resolv.conf inside of the container.

#

#dns_options = []

# List of default DNS search domains to be added to /etc/resolv.conf inside of the container.

#

#dns_searches = []

# Set default DNS servers.

# This option can be used to override the DNS configuration passed to the

# container. The special value "none" can be specified to disable creation of

# /etc/resolv.conf in the container.

# The /etc/resolv.conf file in the image will be used without changes.

#

#dns_servers = []

# Environment variable list for the conmon process; used for passing necessary

# environment variables to conmon or the runtime.

#

#env = [

#  "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",

#  "TERM=xterm",

#]

# Pass all host environment variables into the container.

#

#env_host = false

# Set the ip for the host.containers.internal entry in the containers /etc/hosts

# file. This can be set to "none" to disable adding this entry. By default it

# will automatically choose the host ip.

#

# NOTE: When using podman machine this entry will never be added to the containers

# hosts file instead the gvproxy dns resolver will resolve this hostname. Therefore

# it is not possible to disable the entry in this case.

#

#host_containers_internal_ip = ""

# Default proxy environment variables passed into the container.

# The environment variables passed in include:

# http_proxy, https_proxy, ftp_proxy, no_proxy, and the upper case versions of

# these. This option is needed when host system uses a proxy but container

# should not use proxy. Proxy environment variables specified for the container

# in any other way will override the values passed from the host.

#

#http_proxy = true

# Run an init inside the container that forwards signals and reaps processes.

#

#init = false

# Container init binary, if init=true, this is the init binary to be used for containers.

#

#init_path = "/usr/libexec/podman/catatonit"

# Default way to to create an IPC namespace (POSIX SysV IPC) for the container

# Options are:

#  "host"     Share host IPC Namespace with the container.

#  "none"     Create shareable IPC Namespace for the container without a private /dev/shm.

#  "private"  Create private IPC Namespace for the container, other containers are not allowed to share it.

#  "shareable" Create shareable IPC Namespace for the container.

#

#ipcns = "shareable"

# keyring tells the container engine whether to create

# a kernel keyring for use within the container.

#

#keyring = true

# label tells the container engine whether to use container separation using

# MAC(SELinux) labeling or not.

# The label flag is ignored on label disabled systems.

#

#label = true

# Logging driver for the container. Available options: k8s-file and journald.

#

#log_driver = "k8s-file"

# Maximum size allowed for the container log file. Negative numbers indicate

# that no size limit is imposed. If positive, it must be >= 8192 to match or

# exceed conmon's read buffer. The file is truncated and re-opened so the

# limit is never exceeded.

#

#log_size_max = -1

# Specifies default format tag for container log messages.

# This is useful for creating a specific tag for container log messages.

# Containers logs default to truncated container ID as a tag.

#

#log_tag = ""

# Default way to to create a Network namespace for the container

# Options are:

# `private` Create private Network Namespace for the container.

# `host`    Share host Network Namespace with the container.

# `none`    Containers do not use the network

#

#netns = "private"

# Create /etc/hosts for the container.  By default, container engine manage

# /etc/hosts, automatically adding  the container's  own  IP  address.

#

#no_hosts = false

# Default way to to create a PID namespace for the container

# Options are:

# `private` Create private PID Namespace for the container.

# `host`    Share host PID Namespace with the container.

#

#pidns = "private"

# Maximum number of processes allowed in a container.

#

#pids_limit = 2048

# Copy the content from the underlying image into the newly created volume

# when the container is created instead of when it is started. If false,

# the container engine will not copy the content until the container is started.

# Setting it to true may have negative performance implications.

#

#prepare_volume_on_create = false

# Run all containers with root file system mounted read-only

#

# read_only = false

# Path to the seccomp.json profile which is used as the default seccomp profile

# for the runtime.

#

#seccomp_profile = "/usr/share/containers/seccomp.json"

# Size of /dev/shm. Specified as <number><unit>.

# Unit is optional, values:

# b (bytes), k (kilobytes), m (megabytes), or g (gigabytes).

# If the unit is omitted, the system uses bytes.

#

#shm_size = "65536k"

# Set timezone in container. Takes IANA timezones as well as "local",

# which sets the timezone in the container to match the host machine.

#

#tz = ""

# Set umask inside the container

#

#umask = "0022"

# Default way to to create a User namespace for the container

# Options are:

# `auto`        Create unique User Namespace for the container.

# `host`    Share host User Namespace with the container.

#

#userns = "host"

# Default way to to create a UTS namespace for the container

# Options are:

# `private`        Create private UTS Namespace for the container.

# `host`    Share host UTS Namespace with the container.

#

#utsns = "private"

# List of volumes. Specified as

# "<directory-on-host>:<directory-in-container>:<options>", for example:

# "/db:/var/lib/db:ro".

# If it is empty or commented out, no volumes will be added

#

#volumes = []

#

#[engine.platform_to_oci_runtime]

#"wasi/wasm" = ["crun-wasm"]

#"wasi/wasm32" = ["crun-wasm"]

#"wasi/wasm64" = ["crun-wasm"]

[secrets]

#driver = "file"

[secrets.opts]

#root = "/example/directory"

[network]

# Network backend determines what network driver will be used to set up and tear down container networks.

# Valid values are "cni" and "netavark".

# The default value is empty which means that it will automatically choose CNI or netavark. If there are

# already containers/images or CNI networks preset it will choose CNI.

#

# Before changing this value all containers must be stopped otherwise it is likely that

# iptables rules and network interfaces might leak on the host. A reboot will fix this.

#

#network_backend = ""

# Path to directory where CNI plugin binaries are located.

#

#cni_plugin_dirs = [

#  "/usr/local/libexec/cni",

#  "/usr/libexec/cni",

#  "/usr/local/lib/cni",

#  "/usr/lib/cni",

#  "/opt/cni/bin",

#]

# The network name of the default network to attach pods to.

#

#default_network = "podman"

# The default subnet for the default network given in default_network.

# If a network with that name does not exist, a new network using that name and

# this subnet will be created.

# Must be a valid IPv4 CIDR prefix.

#

#default_subnet = "10.88.0.0/16"

# DefaultSubnetPools is a list of subnets and size which are used to

# allocate subnets automatically for podman network create.

# It will iterate through the list and will pick the first free subnet

# with the given size. This is only used for ipv4 subnets, ipv6 subnets

# are always assigned randomly.

#

#default_subnet_pools = [

#  {"base" = "10.89.0.0/16", "size" = 24},

#  {"base" = "10.90.0.0/15", "size" = 24},

#  {"base" = "10.92.0.0/14", "size" = 24},

#  {"base" = "10.96.0.0/11", "size" = 24},

#  {"base" = "10.128.0.0/9", "size" = 24},

#]

# Path to the directory where network configuration files are located.

# For the CNI backend the default is "/etc/cni/net.d" as root

# and "$HOME/.config/cni/net.d" as rootless.

# For the netavark backend "/etc/containers/networks" is used as root

# and "$graphroot/networks" as rootless.

#

#network_config_dir = "/etc/cni/net.d/"

# Port to use for dns forwarding daemon with netavark in rootful bridge

# mode and dns enabled.

# Using an alternate port might be useful if other dns services should

# run on the machine.

#

#dns_bind_port = 53

[engine]

# Index to the active service

#

#active_service = production

# The compression format to use when pushing an image.

# Valid options are: `gzip`, `zstd` and `zstd:chunked`.

#

#compression_format = "gzip"

# Cgroup management implementation used for the runtime.

# Valid options "systemd" or "cgroupfs"

#

#cgroup_manager = "systemd"

# Environment variables to pass into conmon

#

#conmon_env_vars = [

#  "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

#]

# Paths to look for the conmon container manager binary

#

#conmon_path = [

#  "/usr/libexec/podman/conmon",

#  "/usr/local/libexec/podman/conmon",

#  "/usr/local/lib/podman/conmon",

#  "/usr/bin/conmon",

#  "/usr/sbin/conmon",

#  "/usr/local/bin/conmon",

#  "/usr/local/sbin/conmon"

#]

# Enforces using docker.io for completing short names in Podman's compatibility

# REST API. Note that this will ignore unqualified-search-registries and

# short-name aliases defined in containers-registries.conf(5).

#compat_api_enforce_docker_hub = true

# Specify the keys sequence used to detach a container.

# Format is a single character [a-Z] or a comma separated sequence of

# `ctrl-<value>`, where `<value>` is one of:

# `a-z`, `@`, `^`, `[`, `\`, `]`, `^` or `_`

#

#detach_keys = "ctrl-p,ctrl-q"

# Determines whether engine will reserve ports on the host when they are

# forwarded to containers. When enabled, when ports are forwarded to containers,

# ports are held open by as long as the container is running, ensuring that

# they cannot be reused by other programs on the host. However, this can cause

# significant memory usage if a container has many ports forwarded to it.

# Disabling this can save memory.

#

#enable_port_reservation = true

# Environment variables to be used when running the container engine (e.g., Podman, Buildah).

# For example "http_proxy=internal.proxy.company.com".

# Note these environment variables will not be used within the container.

# Set the env section under [containers] table, if you want to set environment variables for the container.

#

#env = []

# Define where event logs will be stored, when events_logger is "file".

#events_logfile_path=""

# Sets the maximum size for events_logfile_path.

# The size can be b (bytes), k (kilobytes), m (megabytes), or g (gigabytes).

# The format for the size is `<number><unit>`, e.g., `1b` or `3g`.

# If no unit is included then the size will be read in bytes.

# When the limit is exceeded, the logfile will be rotated and the old one will be deleted.

# If the maximum size is set to 0, then no limit will be applied,

# and the logfile will not be rotated.

#events_logfile_max_size = "1m"

# Selects which logging mechanism to use for container engine events.

# Valid values are `journald`, `file` and `none`.

#

#events_logger = "journald"

# Creates a more verbose container-create event which includes a JSON payload

# with detailed information about the container.

#events_container_create_inspect_data = false

# A is a list of directories which are used to search for helper binaries.

#

#helper_binaries_dir = [

#  "/usr/local/libexec/podman",

#  "/usr/local/lib/podman",

#  "/usr/libexec/podman",

#  "/usr/lib/podman",

#]

# Path to OCI hooks directories for automatically executed hooks.

#

#hooks_dir = [

#  "/usr/share/containers/oci/hooks.d",

#]

# Manifest Type (oci, v2s2, or v2s1) to use when pulling, pushing, building

# container images. By default image pulled and pushed match the format of the

# source image. Building/committing defaults to OCI.

#

#image_default_format = ""

# Default transport method for pulling and pushing for images

#

#image_default_transport = "docker://"

# Maximum number of image layers to be copied (pulled/pushed) simultaneously.

# Not setting this field, or setting it to zero, will fall back to containers/image defaults.

#

#image_parallel_copies = 0

# Tells container engines how to handle the builtin image volumes.

#   * bind: An anonymous named volume will be created and mounted

#     into the container.

#   * tmpfs: The volume is mounted onto the container as a tmpfs,

#     which allows users to create content that disappears when

#     the container is stopped.

#   * ignore: All volumes are just ignored and no action is taken.

#

#image_volume_mode = ""

# Default command to run the infra container

#

#infra_command = "/pause"

# Infra (pause) container image name for pod infra containers.  When running a

# pod, we start a `pause` process in a container to hold open the namespaces

# associated with the  pod.  This container does nothing other then sleep,

# reserving the pods resources for the lifetime of the pod. By default container

# engines run a builtin container using the pause executable. If you want override

# specify an image to pull.

#

#infra_image = ""

# Specify the locking mechanism to use; valid values are "shm" and "file".

# Change the default only if you are sure of what you are doing, in general

# "file" is useful only on platforms where cgo is not available for using the

# faster "shm" lock type. You may need to run "podman system renumber" after

# you change the lock type.

#

#lock_type** = "shm"

# MultiImageArchive - if true, the container engine allows for storing archives

# (e.g., of the docker-archive transport) with multiple images.  By default,

# Podman creates single-image archives.

#

#multi_image_archive = "false"

# Default engine namespace

# If engine is joined to a namespace, it will see only containers and pods

# that were created in the same namespace, and will create new containers and

# pods in that namespace.

# The default namespace is "", which corresponds to no namespace. When no

# namespace is set, all containers and pods are visible.

#

#namespace = ""

# Path to the slirp4netns binary

#

#network_cmd_path = ""

# Default options to pass to the slirp4netns binary.

# Valid options values are:

#

# - allow_host_loopback=true|false: Allow the slirp4netns to reach the host loopback IP (`10.0.2.2`).

#   Default is false.

# - mtu=MTU: Specify the MTU to use for this network. (Default is `65520`).

# - cidr=CIDR: Specify ip range to use for this network. (Default is `10.0.2.0/24`).

# - enable_ipv6=true|false: Enable IPv6. Default is true. (Required for `outbound_addr6`).

# - outbound_addr=INTERFACE: Specify the outbound interface slirp should bind to (ipv4 traffic only).

# - outbound_addr=IPv4: Specify the outbound ipv4 address slirp should bind to.

# - outbound_addr6=INTERFACE: Specify the outbound interface slirp should bind to (ipv6 traffic only).

# - outbound_addr6=IPv6: Specify the outbound ipv6 address slirp should bind to.

# - port_handler=rootlesskit: Use rootlesskit for port forwarding. Default.

#   Note: Rootlesskit changes the source IP address of incoming packets to a IP address in the container

#   network namespace, usually `10.0.2.100`. If your application requires the real source IP address,

#   e.g. web server logs, use the slirp4netns port handler. The rootlesskit port handler is also used for

#   rootless containers when connected to user-defined networks.

# - port_handler=slirp4netns: Use the slirp4netns port forwarding, it is slower than rootlesskit but

#   preserves the correct source IP address. This port handler cannot be used for user-defined networks.

#

#network_cmd_options = []

# Whether to use chroot instead of pivot_root in the runtime

#

#no_pivot_root = false

# Number of locks available for containers and pods.

# If this is changed, a lock renumber must be performed (e.g. with the

# 'podman system renumber' command).

#

#num_locks = 2048

# Set the exit policy of the pod when the last container exits.

#pod_exit_policy = "continue"

# Whether to pull new image before running a container

#

#pull_policy = "missing"

# Indicates whether the application should be running in remote mode. This flag modifies the

# --remote option on container engines. Setting the flag to true will default

# `podman --remote=true` for access to the remote Podman service.

#

#remote = false

# Default OCI runtime

#

#runtime = "crun"

runtime = "crun"

# List of the OCI runtimes that support --format=json. When json is supported

# engine will use it for reporting nicer errors.

#

#runtime_supports_json = ["crun", "runc", "kata", "runsc", "youki", "krun"]

# List of the OCI runtimes that supports running containers with KVM Separation.

#

#runtime_supports_kvm = ["kata", "krun"]

# List of the OCI runtimes that supports running containers without cgroups.

#

#runtime_supports_nocgroups = ["crun", "krun"]

# Default location for storing temporary container image content. Can be overridden with the TMPDIR environment

# variable. If you specify "storage", then the location of the

# container/storage tmp directory will be used.

# image_copy_tmp_dir="/var/tmp"

# Number of seconds to wait without a connection

# before the `podman system service` times out and exits

#

#service_timeout = 5

# Directory for persistent engine files (database, etc)

# By default, this will be configured relative to where the containers/storage

# stores containers

# Uncomment to change location from this default

#

#static_dir = "/var/lib/containers/storage/libpod"

# Number of seconds to wait for container to exit before sending kill signal.

#

#stop_timeout = 10

# Number of seconds to wait before exit command in API process is given to.

# This mimics Docker's exec cleanup behaviour, where the default is 5 minutes (value is in seconds).

#

#exit_command_delay = 300

# map of service destinations

#

# [service_destinations]

#  [service_destinations.production]

#     URI to access the Podman service

#     Examples:

#       rootless "unix://run/user/$UID/podman/podman.sock" (Default)

#       rootful "unix://run/podman/podman.sock (Default)

#       remote rootless ssh://engineering.lab.company.com/run/user/1000/podman/podman.sock

#       remote rootful ssh://root@10.10.1.136:22/run/podman/podman.sock

#

#    uri = "ssh://user@production.example.com/run/user/1001/podman/podman.sock"

#    Path to file containing ssh identity key

#    identity = "~/.ssh/id_rsa"

# Directory for temporary files. Must be tmpfs (wiped after reboot)

#

#tmp_dir = "/run/libpod"

# Directory for libpod named volumes.

# By default, this will be configured relative to where containers/storage

# stores containers.

# Uncomment to change location from this default.

#

#volume_path = "/var/lib/containers/storage/volumes"

# Default timeout (in seconds) for volume plugin operations.

# Plugins are external programs accessed via a REST API; this sets a timeout

# for requests to that API.

# A value of 0 is treated as no timeout.

#volume_plugin_timeout = 5

# Paths to look for a valid OCI runtime (crun, runc, kata, runsc, krun, etc)

[engine.runtimes]

#crun = [

#  "/usr/bin/crun",

#  "/usr/sbin/crun",

#  "/usr/local/bin/crun",

#  "/usr/local/sbin/crun",

#  "/sbin/crun",

#  "/bin/crun",

#  "/run/current-system/sw/bin/crun",

#]

#kata = [

#  "/usr/bin/kata-runtime",

#  "/usr/sbin/kata-runtime",

#  "/usr/local/bin/kata-runtime",

#  "/usr/local/sbin/kata-runtime",

#  "/sbin/kata-runtime",

#  "/bin/kata-runtime",

#  "/usr/bin/kata-qemu",

#  "/usr/bin/kata-fc",

#]

#runc = [

#  "/usr/bin/runc",

#  "/usr/sbin/runc",

#  "/usr/local/bin/runc",

#  "/usr/local/sbin/runc",

#  "/sbin/runc",

#  "/bin/runc",

#  "/usr/lib/cri-o-runc/sbin/runc",

#]

#runsc = [

#  "/usr/bin/runsc",

#  "/usr/sbin/runsc",

#  "/usr/local/bin/runsc",

#  "/usr/local/sbin/runsc",

#  "/bin/runsc",

#  "/sbin/runsc",

#  "/run/current-system/sw/bin/runsc",

#]

#youki = [

#  "/usr/local/bin/youki",

#  "/usr/bin/youki",

#  "/bin/youki",

#  "/run/current-system/sw/bin/youki",

#]

#krun = [

#  "/usr/bin/krun",

#  "/usr/local/bin/krun",

#]

[engine.volume_plugins]

#testplugin = "/run/podman/plugins/test.sock"

[machine]

# Number of CPU's a machine is created with.

#

#cpus=1

# The size of the disk in GB created when init-ing a podman-machine VM.

#

#disk_size=10

# Default image URI when creating a new VM using `podman machine init`.

# Options: On Linux/Mac, `testing`, `stable`, `next`. On Windows, the major

# version of the OS (e.g `36`) for Fedora 36. For all platforms you can

# alternatively specify a custom download URL to an image. Container engines

# translate URIs $OS and $ARCH to the native OS and ARCH. URI

# "https://example.com/$OS/$ARCH/foobar.ami" becomes

# "https://example.com/linux/amd64/foobar.ami" on a Linux AMD machine.

# The default value is `testing`.

#

# image = "testing"

# Memory in MB a machine is created with.

#

#memory=2048

# The username to use and create on the podman machine OS for rootless

# container access.

#

#user = "core"

# Host directories to be mounted as volumes into the VM by default.

# Environment variables like $HOME as well as complete paths are supported for

# the source and destination. An optional third field `:ro` can be used to

# tell the container engines to mount the volume readonly.

#

# volumes = [

#  "$HOME:$HOME",

#]

# The [machine] table MUST be the last entry in this file.

# (Unless another table is added)

# TOML does not provide a way to end a table other than a further table being