container related conf

etc/containers/containers.conf

@@ -0,0 +1,4 @@
+[containers]
+userns = "auto"
+
+

etc/containers/networks/podman.json

@@ -0,0 +1,23 @@
+{
+  "name": "podman",
+  "id": "2f259bab93aaaaa2542ba43ef33eb990d0999ee1b9924b557b7be53c0b7a1bb9",
+  "driver": "bridge",
+  "network_interface": "podman0",
+  "created": "2022-08-27T13:25:16.808341191+08:00",
+  "subnets": [
+      {
+          "subnet": "10.88.0.0/16",
+          "gateway": "10.88.0.1"
+      },
+      {
+          "subnet": "fccc::/64",
+          "gateway": "fccc::1"
+      }
+  ],
+  "ipv6_enabled": true,
+  "internal": false,
+  "dns_enabled": true,
+  "ipam_options": {
+      "driver": "host-local"
+  }
+}

etc/containers/storage.conf

@@ -0,0 +1,239 @@
+# This file is the configuration file for all tools
+# that use the containers/storage library. The storage.conf file
+# overrides all other storage.conf files. Container engines using the
+# container/storage library do not inherit fields from other storage.conf
+# files.
+#
+#  Note: The storage.conf file overrides other storage.conf files based on this precedence:
+#      /usr/containers/storage.conf
+#      /etc/containers/storage.conf
+#      $HOME/.config/containers/storage.conf
+#      $XDG_CONFIG_HOME/containers/storage.conf (If XDG_CONFIG_HOME is set)
+# See man 5 containers-storage.conf for more information
+# The "container storage" table contains all of the server options.
+[storage]
+
+# Default Storage Driver, Must be set for proper operation.
+driver = "btrfs"
+
+# Temporary storage location
+runroot = "/run/containers/storage"
+
+# Primary Read/Write location of container storage
+# When changing the graphroot location on an SELINUX system, you must
+# ensure  the labeling matches the default locations labels with the
+# following commands:
+# semanage fcontext -a -e /var/lib/containers/storage /NEWSTORAGEPATH
+# restorecon -R -v /NEWSTORAGEPATH
+graphroot = "/var/lib/containers/storage"
+
+
+# Storage path for rootless users
+#
+# rootless_storage_path = "$HOME/.local/share/containers/storage"
+
+# Transient store mode makes all container metadata be saved in temporary storage
+# (i.e. runroot above). This is faster, but doesn't persist across reboots.
+# Additional garbage collection must also be performed at boot-time, so this
+# option should remain disabled in most configurations.
+# transient_store = true
+
+[storage.options]
+# Storage options to be passed to underlying storage drivers
+
+# AdditionalImageStores is used to pass paths to additional Read/Only image stores
+# Must be comma separated list.
+additionalimagestores = [
+]
+
+# Allows specification of how storage is populated when pulling images. This
+# option can speed the pulling process of images compressed with format
+# zstd:chunked. Containers/storage looks for files within images that are being
+# pulled from a container registry that were previously pulled to the host.  It
+# can copy or create a hard link to the existing file when it finds them,
+# eliminating the need to pull them from the container registry. These options
+# can deduplicate pulling of content, disk storage of content and can allow the
+# kernel to use less memory when running containers.
+
+# containers/storage supports three keys
+#   * enable_partial_images="true" | "false"
+#     Tells containers/storage to look for files previously pulled in storage
+#     rather then always pulling them from the container registry.
+#   * use_hard_links = "false" | "true"
+#     Tells containers/storage to use hard links rather then create new files in
+#     the image, if an identical file already existed in storage.
+#   * ostree_repos = ""
+#     Tells containers/storage where an ostree repository exists that might have
+#     previously pulled content which can be used when attempting to avoid
+#     pulling content from the container registry
+pull_options = {enable_partial_images = "false", use_hard_links = "false", ostree_repos=""}
+
+# Remap-UIDs/GIDs is the mapping from UIDs/GIDs as they should appear inside of
+# a container, to the UIDs/GIDs as they should appear outside of the container,
+# and the length of the range of UIDs/GIDs.  Additional mapped sets can be
+# listed and will be heeded by libraries, but there are limits to the number of
+# mappings which the kernel will allow when you later attempt to run a
+# container.
+#
+# remap-uids = "0:1668442479:65536"
+# remap-gids = "0:1668442479:65536"
+
+# Remap-User/Group is a user name which can be used to look up one or more UID/GID
+# ranges in the /etc/subuid or /etc/subgid file.  Mappings are set up starting
+# with an in-container ID of 0 and then a host-level ID taken from the lowest
+# range that matches the specified name, and using the length of that range.
+# Additional ranges are then assigned, using the ranges which specify the
+# lowest host-level IDs first, to the lowest not-yet-mapped in-container ID,
+# until all of the entries have been used for maps. This setting overrides the
+# Remap-UIDs/GIDs setting.
+#
+remap-user = "containers"
+remap-group = "containers"
+
+# Root-auto-userns-user is a user name which can be used to look up one or more UID/GID
+# ranges in the /etc/subuid and /etc/subgid file.  These ranges will be partitioned
+# to containers configured to create automatically a user namespace.  Containers
+# configured to automatically create a user namespace can still overlap with containers
+# having an explicit mapping set.
+# This setting is ignored when running as rootless.
+# root-auto-userns-user = "storage"
+#
+# Auto-userns-min-size is the minimum size for a user namespace created automatically.
+# auto-userns-min-size=1024
+#
+# Auto-userns-max-size is the maximum size for a user namespace created automatically.
+# auto-userns-max-size=65536
+
+[storage.options.overlay]
+# ignore_chown_errors can be set to allow a non privileged user running with
+# a single UID within a user namespace to run containers. The user can pull
+# and use any image even those with multiple uids.  Note multiple UIDs will be
+# squashed down to the default uid in the container.  These images will have no
+# separation between the users in the container. Only supported for the overlay
+# and vfs drivers.
+#ignore_chown_errors = "false"
+
+# Inodes is used to set a maximum inodes of the container image.
+# inodes = ""
+
+# Path to an helper program to use for mounting the file system instead of mounting it
+# directly.
+#mount_program = "/usr/bin/fuse-overlayfs"
+
+# mountopt specifies comma separated list of extra mount options
+mountopt = "nodev,metacopy=on"
+
+# Set to skip a PRIVATE bind mount on the storage home directory.
+# skip_mount_home = "false"
+
+# Size is used to set a maximum size of the container image.
+# size = ""
+
+# ForceMask specifies the permissions mask that is used for new files and
+# directories.
+#
+# The values "shared" and "private" are accepted.
+# Octal permission masks are also accepted.
+#
+#  "": No value specified.
+#     All files/directories, get set with the permissions identified within the
+#     image.
+#  "private": it is equivalent to 0700.
+#     All files/directories get set with 0700 permissions.  The owner has rwx
+#     access to the files. No other users on the system can access the files.
+#     This setting could be used with networked based homedirs.
+#  "shared": it is equivalent to 0755.
+#     The owner has rwx access to the files and everyone else can read, access
+#     and execute them. This setting is useful for sharing containers storage
+#     with other users.  For instance have a storage owned by root but shared
+#     to rootless users as an additional store.
+#     NOTE:  All files within the image are made readable and executable by any
+#     user on the system. Even /etc/shadow within your image is now readable by
+#     any user.
+#
+#   OCTAL: Users can experiment with other OCTAL Permissions.
+#
+#  Note: The force_mask Flag is an experimental feature, it could change in the
+#  future.  When "force_mask" is set the original permission mask is stored in
+#  the "user.containers.override_stat" xattr and the "mount_program" option must
+#  be specified. Mount programs like "/usr/bin/fuse-overlayfs" present the
+#  extended attribute permissions to processes within containers rather than the
+#  "force_mask"  permissions.
+#
+# force_mask = ""
+
+[storage.options.thinpool]
+# Storage Options for thinpool
+
+# autoextend_percent determines the amount by which pool needs to be
+# grown. This is specified in terms of % of pool size. So a value of 20 means
+# that when threshold is hit, pool will be grown by 20% of existing
+# pool size.
+# autoextend_percent = "20"
+
+# autoextend_threshold determines the pool extension threshold in terms
+# of percentage of pool size. For example, if threshold is 60, that means when
+# pool is 60% full, threshold has been hit.
+# autoextend_threshold = "80"
+
+# basesize specifies the size to use when creating the base device, which
+# limits the size of images and containers.
+# basesize = "10G"
+
+# blocksize specifies a custom blocksize to use for the thin pool.
+# blocksize="64k"
+
+# directlvm_device specifies a custom block storage device to use for the
+# thin pool. Required if you setup devicemapper.
+# directlvm_device = ""
+
+# directlvm_device_force wipes device even if device already has a filesystem.
+# directlvm_device_force = "True"
+
+# fs specifies the filesystem type to use for the base device.
+# fs="xfs"
+
+# log_level sets the log level of devicemapper.
+# 0: LogLevelSuppress 0 (Default)
+# 2: LogLevelFatal
+# 3: LogLevelErr
+# 4: LogLevelWarn
+# 5: LogLevelNotice
+# 6: LogLevelInfo
+# 7: LogLevelDebug
+# log_level = "7"
+
+# min_free_space specifies the min free space percent in a thin pool require for
+# new device creation to succeed. Valid values are from 0% - 99%.
+# Value 0% disables
+# min_free_space = "10%"
+
+# mkfsarg specifies extra mkfs arguments to be used when creating the base
+# device.
+# mkfsarg = ""
+
+# metadata_size is used to set the `pvcreate --metadatasize` options when
+# creating thin devices. Default is 128k
+# metadata_size = ""
+
+# Size is used to set a maximum size of the container image.
+# size = ""
+
+# use_deferred_removal marks devicemapper block device for deferred removal.
+# If the thinpool is in use when the driver attempts to remove it, the driver
+# tells the kernel to remove it as soon as possible. Note this does not free
+# up the disk space, use deferred deletion to fully remove the thinpool.
+# use_deferred_removal = "True"
+
+# use_deferred_deletion marks thinpool device for deferred deletion.
+# If the device is busy when the driver attempts to delete it, the driver
+# will attempt to delete device every 30 seconds until successful.
+# If the program using the driver exits, the driver will continue attempting
+# to cleanup the next time the driver is used. Deferred deletion permanently
+# deletes the device and all data stored in device will be lost.
+# use_deferred_deletion = "True"
+
+# xfs_nospace_max_retries specifies the maximum number of retries XFS should
+# attempt to complete IO when ENOSPC (no space) error is returned by
+# underlying storage device.
+# xfs_nospace_max_retries = "0"

server.yaml

@@ -230,6 +230,9 @@ postprocess:
     systemctl enable cockpit.socket
     systemctl disable sshd
     systemctl enable sshd.socket
+    # subuid for containers
+    echo containers:2147483647:2147483648 > /etc/subuid
+    echo containers:2147483647:2147483648 > /etc/subgid
 
 add-files:
   [
@@ -250,4 +253,7 @@ add-files:
       "/etc/cils/container_rwhome_allbind.cil",
     ],
     ["cils/container_wireguard.cil", "/etc/cils/container_wireguard.cil"],
+    ["etc/containers/containers.conf", "/etc/containers/containers.conf"],
+    ["etc/containers/storage.conf", "/etc/containers/storage.conf"],
+    ["etc/containers/podman/network.json", "/etc/containers/podman/network.json"],
   ]