| Current File : //proc/thread-self/root/usr/share/doc/cloud-init/examples/cloud-config.txt |
#cloud-config
# Update apt database on first boot
# (ie run apt-get update)
#
# Default: true
package_update: false
# Upgrade the instance on first boot
#
# Default: false
package_upgrade: true
# Reboot after package install/update if necessary
# Default: false
package_reboot_if_required: true
# For 'apt' specific config, see cloud-config-apt.txt
packages:
- pwgen
- pastebinit
# set up mount points
# 'mounts' contains a list of lists
# the inner list are entries for an /etc/fstab line
# ie : [ fs_spec, fs_file, fs_vfstype, fs_mntops, fs-freq, fs_passno ]
#
# default:
# mounts:
# - [ ephemeral0, /mnt ]
# - [ swap, none, swap, sw, 0, 0 ]
#
# in order to remove a previously listed mount (ie, one from defaults)
# list only the fs_spec. For example, to override the default, of
# mounting swap:
# - [ swap ]
# or
# - [ swap, null ]
#
# - if a device does not exist at the time, an entry will still be
# written to /etc/fstab.
# - '/dev' can be omitted for device names that begin with: xvd, sd, hd, vd
# - if an entry does not have all 6 fields, they will be filled in
# with values from 'mount_default_fields' below.
#
# Note, that you should set 'nofail' (see man fstab) for volumes that may
# not be attached at instance boot (or reboot)
#
mounts:
- [ ephemeral0, /mnt, auto, "defaults,noexec" ]
- [ sdc, /opt/data ]
- [ xvdh, /opt/data, "auto", "defaults,nofail", "0", "0" ]
- [ dd, /dev/zero ]
# mount_default_fields
# These values are used to fill in any entries in 'mounts' that are not
# complete. This must be an array, and must have 7 fields.
mount_default_fields: [ None, None, "auto", "defaults,nofail", "0", "2" ]
# add each entry to ~/.ssh/authorized_keys for the configured user or the
# first user defined in the user definition directive.
ssh_authorized_keys:
- ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAGEA3FSyQwBI6Z+nCSjUUk8EEAnnkhXlukKoUPND/RRClWz2s5TCzIkd3Ou5+Cyz71X0XmazM3l5WgeErvtIwQMyT1KjNoMhoJMrJnWqQPOt5Q8zWd9qG7PBl9+eiH5qV7NZ mykey@host
- ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA3I7VUf2l5gSn5uavROsc5HRDpZdQueUq5ozemNSj8T7enqKHOEaFoU2VoPgGEWC9RyzSQVeyD6s7APMcE82EtmW4skVEgEGSbDc1pvxzxtchBj78hJP6Cf5TCMFSXw+Fz5rF1dR23QDbN1mkHs7adr8GW4kSWqU7Q7NDwfIrJJtO7Hi42GyXtvEONHbiRPOe8stqUly7MvUoN+5kfjBM8Qqpfl2+FNhTYWpMfYdPUnE7u536WqzFmsaqJctz3gBxH9Ex7dFtrxR4qiqEr9Qtlu3xGn7Bw07/+i1D+ey3ONkZLN+LQ714cgj8fRS4Hj29SCmXp5Kt5/82cD/VN3NtHw== smoser@brickies
# Send pre-generated ssh private keys to the server
# If these are present, they will be written to /etc/ssh and
# new random keys will not be generated
# in addition to 'rsa' as shown below, 'ecdsa' is also supported
ssh_keys:
rsa_private: |
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
rsa_public: ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAGEAoPRhIfLvedSDKw7XdewmZ3h8eIXJD7TRHtVW7aJX1ByifYtlL/HVzJ09nilCl+MSFrpbFnqjxyL8Rr/DSf7QcY/BrGUQbZn2Kc22PemAWthxHO18QJvWPocKJtlsDNi3 smoser@localhost
# remove access to the ec2 metadata service early in boot via null route
# the null route can be removed (by root) with:
# route del -host 169.254.169.254 reject
# default: false (service available)
disable_ec2_metadata: true
# run commands
# default: none
# runcmd contains a list of either lists or a string
# each item will be executed in order at rc.local like level with
# output to the console
# - if the item is a list, the items will be properly executed as if
# passed to execve(3) (with the first arg as the command).
# - if the item is a string, it will be simply written to the file and
# will be interpreted by 'sh'
#
# Note, that the list has to be proper yaml, so you have to escape
# any characters yaml would eat (':' can be problematic)
runcmd:
- [ ls, -l, / ]
- [ sh, -xc, "echo $(date) ': hello world!'" ]
- [ sh, -c, echo "=========hello world'=========" ]
- ls -l /root
# Note: Don't write files to /tmp from cloud-init use /run/somedir instead.
# Early boot environments can race systemd-tmpfiles-clean LP: #1707222.
- mkdir /run/mydir
- [ wget, "http://slashdot.org", -O, /run/mydir/index.html ]
# boot commands
# default: none
# This is very similar to runcmd above, but commands run very early
# in the boot process, only slightly after a 'boothook' would run.
# - bootcmd will run on every boot
# - 'cloud-init-per' command can be used to make bootcmd run exactly once
bootcmd:
- echo 192.168.1.130 us.archive.ubuntu.com > /etc/hosts
- [ cloud-init-per, once, mymkfs, mkfs, /dev/vdb ]
# This is an array of arrays or strings.
# if item is a string, then it is read as a module name
# if the item is an array it is of the form:
# name, frequency, arguments
# where 'frequency' is one of:
# once-per-instance
# always
# a python file in the CloudConfig/ module directory named
# cc_<name>.py
# example:
cloud_config_modules:
- mounts
- ssh_import_id
- ssh
- grub_dpkg
- [ apt_update_upgrade, always ]
- puppet
- disable_ec2_metadata
- runcmd
- byobu
# unverified_modules: []
# if a config module declares a set of distros as supported then it will be
# skipped if running on a different distro. to override this sanity check,
# provide a list of modules that should be run anyway in 'unverified_modules'.
# The default is an empty list (ie, trust modules).
#
# Example:
# unverified_modules: ['apt_update_upgrade']
# default: []
# ssh_import_id: [ user1, user2 ]
# ssh_import_id will feed the list in that variable to
# ssh-import-id, so that public keys stored in launchpad
# can easily be imported into the configured user
# This can be a single string ('smoser') or a list ([smoser, kirkland])
ssh_import_id: [smoser]
# Provide debconf answers / debian preseed values
#
# See debconf-set-selections man page.
#
# Default: none
#
apt:
debconf_selections:
# Force debconf priority to critical.
set1: debconf debconf/priority select critical
# Override default frontend to readline, but allow user to select.
set2: |
debconf debconf/frontend select readline
debconf debconf/frontend seen false
# manage byobu defaults
# byobu_by_default:
# 'user' or 'enable-user': set byobu 'launch-by-default' for the default user
# 'system' or 'enable-system' or 'enable':
# enable 'launch-by-default' for all users, do not modify default user
# 'disable': disable both default user and system
# 'disable-system': disable system
# 'disable-user': disable for default user
# not-set: no changes made
byobu_by_default: system
# disable ssh access as root.
# if you want to be able to ssh in to the system as the root user
# rather than as the 'ubuntu' user, then you must set this to false
# default: true
disable_root: false
# disable_root_opts: the value of this variable will prefix the
# respective key in /root/.ssh/authorized_keys if disable_root is true
# see 'man authorized_keys' for more information on what you can do here
#
# The string '$USER' will be replaced with the username of the default user.
# The string '$DISABLE_USER' will be replaced with the username to disable.
#
# disable_root_opts: no-port-forwarding,no-agent-forwarding,no-X11-forwarding,command="echo 'Please login as the user \"$USER\" rather than the user \"$DISABLE_USER\".';echo;sleep 10;exit 142"
# disable ssh access for non-root-users
# To disable ssh access for non-root users, ssh_redirect_user: true can be
# provided for any use in the 'users' list. This will prompt any ssh login
# attempts as that user with a message like that in disable_root_opts which
# redirects the person to login as <default_username>
# This option can not be combined with either ssh_authorized_keys or
# ssh_import_id.
users:
- default
- name: blockeduser
ssh_redirect_user: true
# set the locale to a given locale
# default: en_US.UTF-8
locale: en_US.UTF-8
# render template default-locale.tmpl to locale_configfile
locale_configfile: /etc/default/locale
# resize_rootfs should the / filesystem be resized on first boot
# this allows you to launch an instance with a larger disk / partition
# and have the instance automatically grow / to accomoddate it
# set to 'False' to disable
# by default, the resizefs is done early in boot, and blocks
# if resize_rootfs is set to 'noblock', then it will be run in parallel
resize_rootfs: True
## hostname and /etc/hosts management
# cloud-init can handle updating some entries in /etc/hosts,
# and can set your hostname for you.
#
# if you do nothing you'll end up with:
# * /etc/hostname (and `hostname`) managed via: 'preserve_hostame: false'
# if you do not change /etc/hostname, it will be updated with the cloud
# provided hostname on each boot. If you make a change, then manual
# maintenance takes over, and cloud-init will not modify it.
#
# * /etc/hosts managed via: 'manage_etc_hosts: false'
# cloud-init will not manage /etc/hosts at all. It is in full manual
# maintenance mode.
#
# You can change the above behavior with the following config variables:
# Remember that these can be set in cloud-config via user-data,
# /etc/cloud/cloud.cfg or any file in /etc/cloud/cloud.cfg.d/
#
# == Hostname management (via /etc/hostname) ==
# * preserve_hostname:
# default: False
# If this option is set to True, then /etc/hostname will never updated
# The default behavior is to update it if it has not been modified by
# the user.
#
# * hostname:
# this option will be used wherever the 'hostname' is needed
# simply substitute it in the description above.
# ** If you wish to set your hostname, set it here **
# default: 'hostname' as returned by the metadata service
# on EC2, the hostname portion of 'local-hostname' is used
# which is something like 'ip-10-244-170-199'
#
# * fqdn:
# this option will be used wherever 'fqdn' is needed.
# simply substitute it in the description above.
# default: fqdn as returned by the metadata service. on EC2 'hostname'
# is used, so this is like: ip-10-244-170-199.ec2.internal
#
# == /etc/hosts management ==
#
# The cloud-config variable that covers management of /etc/hosts is
# 'manage_etc_hosts'
#
# By default, its value is 'false' (boolean False)
#
# * manage_etc_hosts:
# default: false
#
# false:
# cloud-init will not modify /etc/hosts at all.
# * Whatever is present at instance boot time will be present after boot.
# * User changes will not be overwritten
#
# true:
# on every boot, /etc/hosts will be re-written from
# /etc/cloud/templates/hosts.tmpl.
# The strings '$hostname' and '$fqdn' are replaced in the template
# with the appropriate values.
# To make modifications persistent across a reboot, you must make
# modificatoins to /etc/cloud/templates/hosts.tmpl
#
# localhost:
# This option ensures that an entry is present for fqdn as described in
# section 5.1.2 of the debian manual
# http://www.debian.org/doc/manuals/debian-reference/ch05.en.html
#
# cloud-init will generally own the 127.0.1.1 entry, and will update
# it to the hostname and fqdn on every boot. All other entries will
# be left as is. 'ping `hostname`' will ping 127.0.1.1
#
# If you want a fqdn entry with aliases other than 'hostname' to resolve
# to a localhost interface, you'll need to use something other than
# 127.0.1.1. For example:
# 127.0.1.2 myhost.fqdn.example.com myhost whatup.example.com
# final_message
# default: cloud-init boot finished at $TIMESTAMP. Up $UPTIME seconds
# this message is written by cloud-final when the system is finished
# its first boot.
# This message is rendered as if it were a template. If you
# want jinja, you have to start the line with '## template:jinja\n'
final_message: "The system is finally up, after $UPTIME seconds"
# phone_home: if this dictionary is present, then the phone_home
# cloud-config module will post specified data back to the given
# url. Note that this example requires a `## template: jinja` header
# default: none
# phone_home:
# url: http://my.foo.bar/{{ v1.instance_id }}/
# post: all
# tries: 10
#
phone_home:
url: http://my.example.com/{{ v1.instance_id }}/
post: [ pub_key_rsa, pub_key_ecdsa, instance_id ]
# timezone: set the timezone for this instance
# the value of 'timezone' must exist in /usr/share/zoneinfo
timezone: US/Eastern
# you can set passwords for a user or multiple users
# this is off by default.
# to set the default user's password, use the 'password' option.
# if set, to 'R' or 'RANDOM', then a random password will be
# generated and written to stdout (the console)
# password: passw0rd
#
# also note, that this will expire the password, forcing a change
# on first login. If you do not want to expire, see 'chpasswd' below.
#
# By default in the UEC images password authentication is disabled
# Thus, simply setting 'password' as above will only allow you to login
# via the console.
#
# in order to enable password login via ssh you must set
# 'ssh_pwauth'.
# If it is set, to 'True' or 'False', then sshd_config will be updated
# to ensure the desired function. If not set, or set to '' or 'unchanged'
# then sshd_config will not be updated.
# ssh_pwauth: True
#
# there is also an option to set multiple users passwords, using 'chpasswd'
# That looks like the following, with 'expire' set to 'True' by default.
# to not expire users passwords, set 'expire' to 'False'. Also possible
# to set hashed password, here account 'user3' has a password it set to
# 'cloud-init', hashed with SHA-256:
# chpasswd:
# users:
# - name: user1
# password: password1
# type: text
# - user2
# type: RANDOM
# - user3
# password: $5$eriogqzq$Dg7PxHsKGzziuEGkZgkLvacjuEFeljJ.rLf.hZqKQLA
# type: hash
# expire: True
# ssh_pwauth: [ True, False, "" or "unchanged" ]
#
# Hashed passwords can be generated in multiple ways, example with python3 and the passlib module:
# python3 -c 'import passlib.hash;print(passlib.hash.sha512_crypt.hash("password"))'
# Newer versions of 'mkpasswd' will also work: mkpasswd -m sha-512 password
#
# So, a simple working example to allow login via ssh, and not expire
# for the default user would look like:
password: passw0rd
chpasswd: { expire: False }
ssh_pwauth: True
## configure interaction with ssh server
# ssh_svcname: ssh
# set the name of the option to 'service restart'
# in order to restart the ssh daemon. For fedora, use 'sshd'
# default: ssh
# ssh_deletekeys: True
# boolean indicating if existing ssh keys should be deleted on a
# per-instance basis. On a public image, this should absolutely be set
# to 'True'
# ssh_genkeytypes: ['rsa', 'ecdsa']
# a list of the ssh key types that should be generated
# These are passed to 'ssh-keygen -t'
## configuration of ssh keys output to console
# ssh_fp_console_blacklist: []
# ssh_key_console_blacklist: [ssh-dss]
# A list of key types (first token of a /etc/ssh/ssh_key_*.pub file)
# that should be skipped when outputting key fingerprints and keys
# to the console respectively.
## poweroff or reboot system after finished
# default: none
#
# power_state can be used to make the system shutdown, reboot or
# halt after boot is finished. This same thing can be achieved by
# user-data scripts or by runcmd by simply invoking 'shutdown'.
#
# Doing it this way ensures that cloud-init is entirely finished with
# modules that would be executed, and avoids any error/log messages
# that may go to the console as a result of system services like
# syslog being taken down while cloud-init is running.
#
# delay: form accepted by shutdown. default is 'now'. other format
# accepted is '+m' (m in minutes)
# mode: required. must be one of 'poweroff', 'halt', 'reboot'
# message: provided as the message argument to 'shutdown'. default is none.
power_state:
delay: '+30'
mode: poweroff
message: Bye Bye