更新ansible.cfg

ansible.cfg

@@ -1,29 +1,27 @@
-# config file for ansible -- http://ansible.com/
-# ==============================================
+# Example config file for ansible -- https://ansible.com/
+# =======================================================
 
-# nearly all parameters can be overridden in ansible-playbook 
-# or with command line flags. ansible will read ANSIBLE_CONFIG,
+# Nearly all parameters can be overridden in ansible-playbook
+# or with command line flags. Ansible will read ANSIBLE_CONFIG,
 # ansible.cfg in the current working directory, .ansible.cfg in
-# the home directory or /etc/ansible/ansible.cfg, whichever it
+# the home directory, or /etc/ansible/ansible.cfg, whichever it
 # finds first
 
+# For a full list of available options, run ansible-config list or see the
+# documentation: https://docs.ansible.com/ansible/latest/reference_appendices/config.html.
+
 [defaults]
-
-# some basic default values...
-
 #inventory       = /etc/ansible/hosts
-#library        = /usr/share/my_modules/
-#remote_tmp     = $HOME/.ansible/tmp
+#library         = ~/.ansible/plugins/modules:/usr/share/ansible/plugins/modules
+#module_utils    = ~/.ansible/plugins/module_utils:/usr/share/ansible/plugins/module_utils
+#remote_tmp      = ~/.ansible/tmp
+#local_tmp       = ~/.ansible/tmp
 #forks           = 5
-#poll_interval  = 15
-#sudo_user      = root
-#ask_sudo_pass = True
-#ask_pass      = True
+#poll_interval   = 0.001
+#ask_pass        = False
 #transport       = smart
-#remote_port    = 22
-#module_lang    = C
 
-# plays will gather facts by default, which contain information about
+# Plays will gather facts by default, which contain information about
 # the remote system.
 #
 # smart - gather by default, but don't regather if already gathered
@@ -31,171 +29,327 @@
 # explicit - do not gather by default, must say gather_facts: True
 gathering = smart
 
-# additional paths to search for roles in, colon separated
+# This only affects the gathering done by a play's gather_facts directive,
+# by default gathering retrieves all facts subsets
+# all - gather all subsets
+# network - gather min and network facts
+# hardware - gather hardware facts (longest facts to retrieve)
+# virtual - gather min and virtual facts
+# facter - import facts from facter
+# ohai - import facts from ohai
+# You can combine them using comma (ex: network,virtual)
+# You can negate them using ! (ex: !hardware,!facter,!ohai)
+# A minimal set of facts is always gathered.
+#
+#gather_subset = all
+
+# some hardware related facts are collected
+# with a maximum timeout of 10 seconds. This
+# option lets you increase or decrease that
+# timeout to something more suitable for the
+# environment.
+#
+gather_timeout = 7
+
+# Ansible facts are available inside the ansible_facts.* dictionary
+# namespace. This setting maintains the behaviour which was the default prior
+# to 2.5, duplicating these variables into the main namespace, each with a
+# prefix of 'ansible_'.
+# This variable is set to True by default for backwards compatibility. It
+# will be changed to a default of 'False' in a future release.
+#
+#inject_facts_as_vars = True
+
+# Paths to search for collections, colon separated
+# collections_paths = ~/.ansible/collections:/usr/share/ansible/collections
+
+# Paths to search for roles, colon separated
 roles_path = /etc/kubeasz/roles 
 
-# uncomment this to disable SSH key host checking
+# Host key checking is enabled by default
 host_key_checking = False
 
-# change the default callback
-#stdout_callback = skippy
-# enable additional callbacks
+# You can only have one 'stdout' callback type enabled at a time. The default
+# is 'default'. The 'yaml' or 'debug' stdout callback plugins are easier to read.
+#
+#stdout_callback = default
+#stdout_callback = yaml
+#stdout_callback = debug
+
+
+# Ansible ships with some plugins that require whitelisting,
+# this is done to avoid running all of a type by default.
+# These setting lists those that you want enabled for your system.
+# Custom plugins should not need this unless plugin author disables them
+# by default.
+#
+# Enable callback plugins, they can output to stdout but cannot be 'stdout' type.
 #callback_whitelist = timer, mail
 
-# change this for alternative sudo implementations
-#sudo_exe = sudo
+# Determine whether includes in tasks and handlers are "static" by
+# default. As of 2.0, includes are dynamic by default. Setting these
+# values to True will make includes behave more like they did in the
+# 1.x versions.
+#
+#task_includes_static = False
+#handler_includes_static = False
 
-# What flags to pass to sudo
-# WARNING: leaving out the defaults might create unexpected behaviours
-#sudo_flags = -H -S -n
+# Controls if a missing handler for a notification event is an error or a warning
+#error_on_missing_handler = True
 
-# SSH timeout
+# Default timeout for connection plugins
 #timeout = 10
 
-# default user to use for playbooks if user is not specified
-# (/usr/bin/ansible will use current user as default)
+# Default user to use for playbooks if user is not specified
+# Uses the connection plugin's default, normally the user currently executing Ansible,
+# unless a different user is specified here.
+#
 #remote_user = root
 
-# logging is off by default unless this path is defined
-# if so defined, consider logrotate
+# Logging is off by default unless this path is defined.
 #log_path = /var/log/ansible.log
 
-# default module name for /usr/bin/ansible
+# Default module to use when running ad-hoc commands
 #module_name = command
 
-# use this shell for commands executed under sudo
-# you may need to change this to bin/bash in rare instances
-# if sudo is constrained
+# Use this shell for commands executed under sudo.
+# you may need to change this to /bin/bash in rare instances
+# if sudo is constrained.
+#
 #executable = /bin/sh
 
-# if inventory variables overlap, does the higher precedence one win
-# or are hash values merged together?  The default is 'replace' but
-# this can also be set to 'merge'.
-#hash_behaviour = replace
-
-# by default, variables from roles will be visible in the global variable
-# scope. To prevent this, the following option can be enabled, and only
+# By default, variables from roles will be visible in the global variable
+# scope. To prevent this, set the following option to True, and only
 # tasks and handlers within the role will see the variables there
-#private_role_vars = yes
+#
+private_role_vars = True
 
-# list any Jinja2 extensions to enable here:
+# List any Jinja2 extensions to enable here.
 #jinja2_extensions = jinja2.ext.do,jinja2.ext.i18n
 
-# if set, always use this private key file for authentication, same as 
+# If set, always use this private key file for authentication, same as
 # if passing --private-key to ansible or ansible-playbook
+#
 #private_key_file = /path/to/file
 
-# format of string {{ ansible_managed }} available within Jinja2
+# If set, configures the path to the Vault password file as an alternative to
+# specifying --vault-password-file on the command line. This can also be
+# an executable script that returns the vault password to stdout.
+#
+#vault_password_file = /path/to/vault_password_file
+
+# Format of string {{ ansible_managed }} available within Jinja2
 # templates indicates to users editing templates files will be replaced.
 # replacing {file}, {host} and {uid} and strftime codes with proper values.
+#
 #ansible_managed = Ansible managed: {file} modified on %Y-%m-%d %H:%M:%S by {uid} on {host}
-# This short version is better used in templates as it won't flag the file as changed every run.
-#ansible_managed = Ansible managed: {file} on {host}
 
-# by default, ansible-playbook will display "Skipping [host]" if it determines a task
+# {file}, {host}, {uid}, and the timestamp can all interfere with idempotence
+# in some situations so the default is a static string:
+#
+#ansible_managed = Ansible managed
+
+# By default, ansible-playbook will display "Skipping [host]" if it determines a task
 # should not be run on a host. Set this to "False" if you don't want to see these "Skipping"
 # messages. NOTE: the task header will still be shown regardless of whether or not the
 # task is skipped.
+#
 display_skipped_hosts = False
 
-# by default (as of 1.3), Ansible will raise errors when attempting to dereference 
-# Jinja2 variables that are not set in templates or action lines. Uncomment this line
-# to revert the behavior to pre-1.3.
-#error_on_undefined_vars = False
+# By default, if a task in a playbook does not include a name: field then
+# ansible-playbook will construct a header that includes the task's action but
+# not the task's args. This is a security feature because ansible cannot know
+# if the *module* considers an argument to be no_log at the time that the
+# header is printed. If your environment doesn't have a problem securing
+# stdout from ansible-playbook (or you have manually specified no_log in your
+# playbook on all of the tasks where you have secret information) then you can
+# safely set this to True to get more informative messages.
+#
+display_args_to_stdout = False 
 
-# by default (as of 1.6), Ansible may display warnings based on the configuration of the
+# Ansible will raise errors when attempting to dereference
+# Jinja2 variables that are not set in templates or action lines. Uncomment this line
+# to change this behavior.
+#
+error_on_undefined_vars = True
+
+# Ansible may display warnings based on the configuration of the
 # system running ansible itself. This may include warnings about 3rd party packages or
 # other conditions that should be resolved if possible.
-# to disable these warnings, set the following value to False:
-#system_warnings = True
+# To disable these warnings, set the following value to False:
+#
+system_warnings = False
 
-# by default (as of 1.4), Ansible may display deprecation warnings for language
+# Ansible may display deprecation warnings for language
 # features that should no longer be used and will be removed in future versions.
-# to disable these warnings, set the following value to False:
+# To disable these warnings, set the following value to False:
+#
 deprecation_warnings = False
 
-# (as of 1.8), Ansible can optionally warn when usage of the shell and
+# Ansible can optionally warn when usage of the shell and
 # command module appear to be simplified by using a default Ansible module
 # instead. These warnings can be silenced by adjusting the following
 # setting or adding warn=yes or warn=no to the end of the command line
 # parameter string. This will for example suggest using the git module
 # instead of shelling out to the git command.
+#
 #command_warnings = False
 
 
 # set plugin path directories here, separate with colons
 #action_plugins     = /usr/share/ansible/plugins/action
+#become_plugins     = /usr/share/ansible/plugins/become
+#cache_plugins      = /usr/share/ansible/plugins/cache
 #callback_plugins   = /usr/share/ansible/plugins/callback
 #connection_plugins = /usr/share/ansible/plugins/connection
 #lookup_plugins     = /usr/share/ansible/plugins/lookup
+#inventory_plugins  = /usr/share/ansible/plugins/inventory
 #vars_plugins       = /usr/share/ansible/plugins/vars
 #filter_plugins     = /usr/share/ansible/plugins/filter
 #test_plugins       = /usr/share/ansible/plugins/test
+#terminal_plugins   = /usr/share/ansible/plugins/terminal
+#strategy_plugins   = /usr/share/ansible/plugins/strategy
 
-# by default callbacks are not loaded for /bin/ansible, enable this if you
+
+# Ansible will use the 'linear' strategy but you may want to try another one.
+#strategy = linear
+
+# By default, callbacks are not loaded for /bin/ansible. Enable this if you
 # want, for example, a notification or logging callback to also apply to
 # /bin/ansible runs
+#
 #bin_ansible_callbacks = False
 
 
-# don't like cows?  that's unfortunate.
+# Don't like cows?  that's unfortunate.
 # set to 1 if you don't want cowsay support or export ANSIBLE_NOCOWS=1
 #nocows = 1
 
-# set which cowsay stencil you'd like to use by default. When set to 'random',
+# Set which cowsay stencil you'd like to use by default. When set to 'random',
 # a random stencil will be selected for each task. The selection will be filtered
 # against the `cow_whitelist` option below.
+#
 #cow_selection = default
 #cow_selection = random
 
-# when using the 'random' option for cowsay, stencils will be restricted to this list.
+# When using the 'random' option for cowsay, stencils will be restricted to this list.
 # it should be formatted as a comma-separated list with no spaces between names.
 # NOTE: line continuations here are for formatting purposes only, as the INI parser
 #       in python does not support them.
+#
 #cow_whitelist=bud-frogs,bunny,cheese,daemon,default,dragon,elephant-in-snake,elephant,eyes,\
 #              hellokitty,kitty,luke-koala,meow,milk,moofasa,moose,ren,sheep,small,stegosaurus,\
 #              stimpy,supermilker,three-eyes,turkey,turtle,tux,udder,vader-koala,vader,www
 
-# don't like colors either?
+# Don't like colors either?
 # set to 1 if you don't want colors, or export ANSIBLE_NOCOLOR=1
+#
 #nocolor = 1
 
-# if set to a persistent type (not 'memory', for example 'redis') fact values
+# If set to a persistent type (not 'memory', for example 'redis') fact values
 # from previous runs in Ansible will be stored. This may be useful when
 # wanting to use, for example, IP information from one group of servers
 # without having to talk to them in the same playbook run to get their
 # current IP information.
+#
 #fact_caching = memory
 
+# This option tells Ansible where to cache facts. The value is plugin dependent.
+# For the jsonfile plugin, it should be a path to a local directory.
+# For the redis plugin, the value is a host:port:database triplet: fact_caching_connection = localhost:6379:0
+#
+#fact_caching_connection=/tmp
 
 # retry files
-# When a playbook fails by default a .retry file will be created in ~/
-# You can disable this feature by setting retry_files_enabled to False
+# When a playbook fails a .retry file can be created that will be placed in ~/
+# You can enable this feature by setting retry_files_enabled to True
 # and you can change the location of the files by setting retry_files_save_path
-
+#
 retry_files_enabled = False
 #retry_files_save_path = ~/.ansible-retry
 
-
 # prevents logging of task data, off by default
 #no_log = False
 
 # prevents logging of tasks, but only on the targets, data is still logged on the master/controller
 #no_target_syslog = False
 
-# controls the compression level of variables sent to
-# worker processes. At the default of 0, no compression
-# is used. This value must be an integer from 0 to 9.
-#var_compression_level = 9
+# Controls whether Ansible will raise an error or warning if a task has no
+# choice but to create world readable temporary files to execute a module on
+# the remote machine. This option is False by default for security. Users may
+# turn this on to have behaviour more like Ansible prior to 2.1.x. See
+# https://docs.ansible.com/ansible/latest/user_guide/become.html#becoming-an-unprivileged-user
+# for more secure ways to fix this than enabling this option.
+#
+#allow_world_readable_tmpfiles = False
+
+# Controls what compression method is used for new-style ansible modules when
+# they are sent to the remote system. The compression types depend on having
+# support compiled into both the controller's python and the client's python.
+# The names should match with the python Zipfile compression types:
+# * ZIP_STORED (no compression. available everywhere)
+# * ZIP_DEFLATED (uses zlib, the default)
+# These values may be set per host via the ansible_module_compression inventory variable.
+#
+#module_compression = 'ZIP_DEFLATED'
+
+# This controls the cutoff point (in bytes) on --diff for files
+# set to 0 for unlimited (RAM may suffer!).
+#
+#max_diff_size = 104448
+
+# Controls showing custom stats at the end, off by default
+#show_custom_stats = False
+
+# Controls which files to ignore when using a directory as inventory with
+# possibly multiple sources (both static and dynamic)
+#
+#inventory_ignore_extensions = ~, .orig, .bak, .ini, .cfg, .retry, .pyc, .pyo
+
+# This family of modules use an alternative execution path optimized for network appliances
+# only update this setting if you know how this works, otherwise it can break module execution
+#
+#network_group_modules=eos, nxos, ios, iosxr, junos, vyos
+
+# When enabled, this option allows lookups (via variables like {{lookup('foo')}} or when used as
+# a loop with `with_foo`) to return data that is not marked "unsafe". This means the data may contain
+# jinja2 templating language which will be run through the templating engine.
+# ENABLING THIS COULD BE A SECURITY RISK
+#
+#allow_unsafe_lookups = False
+
+# set default errors for all plays
+#any_errors_fatal = False
+
+
+[inventory]
+# List of enabled inventory plugins and the order in which they are used.
+#enable_plugins = host_list, script, auto, yaml, ini, toml
+
+# Ignore these extensions when parsing a directory as inventory source
+#ignore_extensions = .pyc, .pyo, .swp, .bak, ~, .rpm, .md, .txt, ~, .orig, .ini, .cfg, .retry
+
+# ignore files matching these patterns when parsing a directory as inventory source
+#ignore_patterns=
+
+# If 'True' unparsed inventory sources become fatal errors, otherwise they are warnings.
+#unparsed_is_failed = False
+
 
 [privilege_escalation]
-#become=True
+#become = False
 #become_method = sudo
-#become_user=root
 #become_ask_pass = False
 
-[paramiko_connection]
 
+## Connection Plugins ##
+
+# Settings for each connection plugin go under a section titled '[[plugin_name]_connection]'
+# To view available connection plugins, run ansible-doc -t connection -l
+# To view available options for a connection plugin, run ansible-doc -t connection [plugin_name]
+# https://docs.ansible.com/ansible/latest/plugins/connection.html
+
+[paramiko_connection]
 # uncomment this line to cause the paramiko connection plugin to not record new host
 # keys encountered. Increases performance on new host additions. Setting works independently of the
 # host key checking setting above.
@@ -205,22 +359,40 @@ retry_files_enabled = False
 # line to disable this behaviour.
 #pty = False
 
-[ssh_connection]
+# paramiko will default to looking for SSH keys initially when trying to
+# authenticate to remote devices. This is a problem for some network devices
+# that close the connection after a key failure. Uncomment this line to
+# disable the Paramiko look for keys function
+#look_for_keys = False
 
+# When using persistent connections with Paramiko, the connection runs in a
+# background process. If the host doesn't already have a valid SSH key, by
+# default Ansible will prompt to add the host key. This will cause connections
+# running in background processes to fail. Uncomment this line to have
+# Paramiko automatically add host keys.
+#host_key_auto_add = True
+
+
+[ssh_connection]
 # ssh arguments to use
 # Leaving off ControlPersist will result in poor performance, so use
-# paramiko on older platforms rather than removing it
-ssh_args = -o ControlMaster=auto -o ControlPersist=3600s
+# paramiko on older platforms rather than removing it, -C controls compression use
+#ssh_args = -C -o ControlMaster=auto -o ControlPersist=60s
 
-# The path to use for the ControlPath sockets. This defaults to
-# "%(directory)s/ansible-ssh-%%h-%%p-%%r", however on some systems with
-# very long hostnames or very long path names (caused by long user names or 
-# deeply nested home directories) this can exceed the character limit on
-# file socket names (108 characters for most platforms). In that case, you 
-# may wish to shorten the string below.
+# The base directory for the ControlPath sockets.
+# This is the "%(directory)s" in the control_path option
 #
 # Example:
-# control_path = %(directory)s/%%h-%%r
+# control_path_dir = /tmp/.ansible/cp
+control_path_dir = /tmp
+
+# The path to use for the ControlPath sockets. This defaults to a hashed string of the hostname,
+# port and username (empty string in the config). The hash mitigates a common problem users
+# found with long hostnames and the conventional %(directory)s/ansible-ssh-%%h-%%p-%%r format.
+# In those cases, a "too long for Unix domain socket" ssh error would occur.
+#
+# Example:
+# control_path = %(directory)s/%%C
 control_path = /tmp/ansible-ssh-%%h-%%p-%%r
 
 # Enabling pipelining reduces the number of SSH operations required to
@@ -233,32 +405,121 @@ control_path = /tmp/ansible-ssh-%%h-%%p-%%r
 #
 pipelining = True 
 
-# if True, make ansible use scp if the connection type is ssh 
-# (default is sftp)
-#scp_if_ssh = True
+# Control the mechanism for transferring files (old)
+#   * smart = try sftp and then try scp [default]
+#   * True = use scp only
+#   * False = use sftp only
+#scp_if_ssh = smart
 
-# if False, sftp will not use batch mode to transfer files. This may cause some
+# Control the mechanism for transferring files (new)
+# If set, this will override the scp_if_ssh option
+#   * sftp  = use sftp to transfer files
+#   * scp   = use scp to transfer files
+#   * piped = use 'dd' over SSH to transfer files
+#   * smart = try sftp, scp, and piped, in that order [default]
+#transfer_method = smart
+
+# If False, sftp will not use batch mode to transfer files. This may cause some
 # types of file transfer failures impossible to catch however, and should
 # only be disabled if your sftp version has problems with batch mode
 sftp_batch_mode = True
 
-[accelerate]
-#accelerate_port = 5099
-#accelerate_timeout = 30
-#accelerate_connect_timeout = 5.0
+# The -tt argument is passed to ssh when pipelining is not enabled because sudo
+# requires a tty by default.
+#usetty = True
 
-# The daemon timeout is measured in minutes. This time is measured
-# from the last activity to the accelerate daemon.
-#accelerate_daemon_timeout = 30 
+# Number of times to retry an SSH connection to a host, in case of UNREACHABLE.
+# For each retry attempt, there is an exponential backoff,
+# so after the first attempt there is 1s wait, then 2s, 4s etc. up to 30s (max).
+#retries = 3
+
+
+[persistent_connection]
+# Configures the persistent connection timeout value in seconds. This value is
+# how long the persistent connection will remain idle before it is destroyed.
+# If the connection doesn't receive a request before the timeout value
+# expires, the connection is shutdown. The default value is 30 seconds.
+#connect_timeout = 30
+
+# The command timeout value defines the amount of time to wait for a command
+# or RPC call before timing out. The value for the command timeout must
+# be less than the value of the persistent connection idle timeout (connect_timeout)
+# The default value is 30 second.
+#command_timeout = 30
+
+
+## Become Plugins ##
+
+# Settings for become plugins go under a section named '[[plugin_name]_become_plugin]'
+# To view available become plugins, run ansible-doc -t become -l
+# To view available options for a specific plugin, run ansible-doc -t become [plugin_name]
+# https://docs.ansible.com/ansible/latest/plugins/become.html
+
+[sudo_become_plugin]
+#flags = -H -S -n
+#user = root
 
-# If set to yes, accelerate_multi_key will allow multiple
-# private keys to be uploaded to it, though each user must
-# have access to the system via SSH to add a new key. The default
-# is "no".
-#accelerate_multi_key = yes
 
 [selinux]
 # file systems that require special treatment when dealing with security context
 # the default behaviour that copies the existing context or uses the user default
 # needs to be changed to use the file system dependent context.
-#special_context_filesystems=nfs,vboxsf,fuse,ramfs
+#special_context_filesystems=fuse,nfs,vboxsf,ramfs,9p,vfat
+
+# Set this to True to allow libvirt_lxc connections to work without SELinux.
+#libvirt_lxc_noseclabel = False
+
+
+[colors]
+#highlight = white
+#verbose = blue
+#warn = bright purple
+#error = red
+#debug = dark gray
+#deprecate = purple
+#skip = cyan
+#unreachable = red
+#ok = green
+#changed = yellow
+#diff_add = green
+#diff_remove = red
+#diff_lines = cyan
+
+
+[diff]
+# Always print diff when running ( same as always running with -D/--diff )
+#always = False
+
+# Set how many context lines to show in diff
+#context = 3
+
+[galaxy]
+# Controls whether the display wheel is shown or not
+#display_progress=
+
+# Validate TLS certificates for Galaxy server
+#ignore_certs = False
+
+# Role or collection skeleton directory to use as a template for
+# the init action in ansible-galaxy command
+#role_skeleton=
+
+# Patterns of files to ignore inside a Galaxy role or collection
+# skeleton directory
+#role_skeleton_ignore="^.git$", "^.*/.git_keep$"
+
+# Galaxy Server URL
+#server=https://galaxy.ansible.com
+
+# A list of Galaxy servers to use when installing a collection.
+#server_list=automation_hub, release_galaxy
+
+# Server specific details which are mentioned in server_list
+#[galaxy_server.automation_hub]
+#url=https://cloud.redhat.com/api/automation-hub/
+#auth_url=https://sso.redhat.com/auth/realms/redhat-external/protocol/openid-connect/token
+#token=my_ah_token
+#
+#[galaxy_server.release_galaxy]
+#url=https://galaxy.ansible.com/
+#token=my_token

playbooks/94.backup.yml

@@ -31,22 +31,23 @@
   - debug: var="RUNNING_NODE.stdout"
 
   - name: get current time
-    set_fact: temp="{{lookup('pipe','date \"+%Y%m%d_%H%M\"')}}"
+    shell: "date +'%Y%m%d%H%M'"
+    register: timestamp
 
   # step2: backup data on the healthy member
   - name: make a backup on the etcd node
     shell: "mkdir -p /etcd_backup && cd /etcd_backup && \
-        ETCDCTL_API=3 {{ bin_dir }}/etcdctl snapshot save snapshot_{{ temp }}.db"
+        ETCDCTL_API=3 {{ bin_dir }}/etcdctl snapshot save snapshot_{{ timestamp.stdout }}.db"
     args:
       warn: false
     delegate_to: "{{ RUNNING_NODE.stdout }}"
 
   - name: fetch the backup data
     fetch:
-      src: /etcd_backup/snapshot_{{ temp }}.db
+      src: /etcd_backup/snapshot_{{ timestamp.stdout }}.db
       dest: "{{ cluster_dir }}/backup/"
       flat: yes
     delegate_to: "{{ RUNNING_NODE.stdout }}"
 
   - name: update the latest backup
-    shell: 'cd {{ cluster_dir }}/backup/ && /bin/cp -f snapshot_{{ temp }}.db snapshot.db'
+    shell: 'cd {{ cluster_dir }}/backup/ && /bin/cp -f snapshot_{{ timestamp.stdout }}.db snapshot.db'