fix etcd fetch files bug

Dockerfile

+FROM centos:7.4.1708
+RUN yum install -y ansible && yum install -y openssh && yum install -y openssh-clients

README.md

 build a production kubernetes cluster
 
+# run with docker
+```
+docker run -v /Users/fanux/work/src/github.com/sealyun/sealos:/etc/ansible -v /Users/fanux:/data -it -w /etc/ansible ansible/ansible:centos7 bash
+```
+ssh public key:
+```
+cat ~/.ssh/id_rsa.pub
+ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC7fTirP9zPcx7wIjhsF+Dyu0A2sV5llC8jsmp/xtiyuJirE3mclpNEqgrzHC26f+ckfzwoE0HPU0wDPxbWFl3B0K89EwJSBsVZSZ0VLYnZp0u2JgwCLZzZzKfY0018yoqoL9KHz/68RpqtG2bWVf0/WSj+4hN7xTRpRTtXJHBOQRQBfqVSIcfMBSEnO15buUbDaLol/HvQd0YBrWwafQtMacmBlqDG0Z6/yeY4sTNRVRV2Uu5TeaHfzgYgmY9+NxtvPn8Td6tgZtq7cVU//kSsbzkUzDSD8zsh8kPUm4yljT5tYM1cPFLGM4m/zqAjAZN2YaEdFckJFAQ7TWAK857d root@8682294b9464
+```
+# ssh setting on all hosts
+```
+cd ~/.ssh
+echo "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC7fTirP9zPcx7wIjhsF+Dyu0A2sV5llC8jsmp/xtiyuJirE3mclpNEqgrzHC26f+ckfzwoE0HPU0wDPxbWFl3B0K89EwJSBsVZSZ0VLYnZp0u2JgwCLZzZzKfY0018yoqoL9KHz/68RpqtG2bWVf0/WSj+4hN7xTRpRTtXJHBOQRQBfqVSIcfMBSEnO15buUbDaLol/HvQd0YBrWwafQtMacmBlqDG0Z6/yeY4sTNRVRV2Uu5TeaHfzgYgmY9+NxtvPn8Td6tgZtq7cVU//kSsbzkUzDSD8zsh8kPUm4yljT5tYM1cPFLGM4m/zqAjAZN2YaEdFckJFAQ7TWAK857d root@8682294b9464" >> authorized_keys
+```
+
 # install etcd
 ansible-playbook roles/install-etcd.yaml

ansible.cfg.rpmnew

+# 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,
+# ansible.cfg in the current working directory, .ansible.cfg in
+# the home directory or /etc/ansible/ansible.cfg, whichever it
+# finds first
+
+[defaults]
+
+# some basic default values...
+
+#inventory      = /etc/ansible/hosts
+#library        = /usr/share/my_modules/
+#module_utils   = /usr/share/my_module_utils/
+#remote_tmp     = ~/.ansible/tmp
+#local_tmp      = ~/.ansible/tmp
+#plugin_filters_cfg = /etc/ansible/plugin_filters.yml
+#forks          = 5
+#poll_interval  = 15
+#sudo_user      = root
+#ask_sudo_pass = True
+#ask_pass      = True
+#transport      = smart
+#remote_port    = 22
+#module_lang    = C
+#module_set_locale = False
+
+# plays will gather facts by default, which contain information about
+# the remote system.
+#
+# smart - gather by default, but don't regather if already gathered
+# implicit - gather by default, turn off with gather_facts: False
+# explicit - do not gather by default, must say gather_facts: True
+#gathering = implicit
+
+# 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 = 10
+
+# additional paths to search for roles in, colon separated
+#roles_path    = /etc/ansible/roles
+
+# uncomment this to disable SSH key host checking
+#host_key_checking = False
+
+# change the default callback, you can only have one 'stdout' type  enabled at a time.
+#stdout_callback = skippy
+
+
+## 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 specifies it.
+
+# enable callback plugins, they can output to stdout but cannot be 'stdout' type.
+#callback_whitelist = timer, mail
+
+# 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
+
+# Controls if a missing handler for a notification event is an error or a warning
+#error_on_missing_handler = True
+
+# change this for alternative sudo implementations
+#sudo_exe = sudo
+
+# What flags to pass to sudo
+# WARNING: leaving out the defaults might create unexpected behaviours
+#sudo_flags = -H -S -n
+
+# SSH timeout
+#timeout = 10
+
+# default user to use for playbooks if user is not specified
+# (/usr/bin/ansible will use current user as default)
+#remote_user = root
+
+# logging is off by default unless this path is defined
+# if so defined, consider logrotate
+#log_path = /var/log/ansible.log
+
+# default module name for /usr/bin/ansible
+#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
+#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
+# tasks and handlers within the role will see the variables there
+#private_role_vars = yes
+
+# 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 passing --private-key to ansible or ansible-playbook
+#private_key_file = /path/to/file
+
+# If set, configures the path to the Vault password file as an alternative to
+# specifying --vault-password-file on the command line.
+#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}
+# {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 = True
+
+# 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 1.3), 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 (as of 1.6), 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
+
+# by default (as of 1.4), 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:
+#deprecation_warnings = True
+
+# (as of 1.8), 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
+#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, ansible will use the 'linear' strategy but you may want to try
+# another one
+#strategy = free
+
+# 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.
+# 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',
+# 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.
+# 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?
+# 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
+# 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
+
+
+# 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
+# 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
+
+# squash actions
+# Ansible can optimise actions that call modules with list parameters
+# when looping. Instead of calling the module once per with_ item, the
+# module is called once with all items at once. Currently this only works
+# under limited circumstances, and only with parameters named 'name'.
+#squash_actions = apk,apt,dnf,homebrew,pacman,pkgng,yum,zypper
+
+# 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 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/become.html#becoming-an-unprivileged-user
+# for more secure ways to fix this than enabling this option.
+#allow_world_readable_tmpfiles = 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 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 = 1048576
+
+# This controls how ansible handles multiple --tags and --skip-tags arguments
+# on the CLI.  If this is True then multiple arguments are merged together.  If
+# it is False, then the last specified argument is used and the others are ignored.
+# This option will be removed in 2.8.
+#merge_multiple_cli_flags = True
+
+# Controls showing custom stats at the end, off by default
+#show_custom_stats = True
+
+# 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]
+# enable inventory plugins, default: 'host_list', 'script', 'yaml', 'ini'
+#enable_plugins = host_list, virtualbox, yaml, constructed
+
+# 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, they are warnings otherwise.
+#unparsed_is_failed=False
+
+[privilege_escalation]
+#become=True
+#become_method=sudo
+#become_user=root
+#become_ask_pass=False
+
+[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.
+#record_host_keys=False
+
+# by default, Ansible requests a pseudo-terminal for commands executed under sudo. Uncomment this
+# line to disable this behaviour.
+#pty=False
+
+# 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, -C controls compression use
+#ssh_args = -C -o ControlMaster=auto -o ControlPersist=60s
+
+# The base directory for the ControlPath sockets.
+# This is the "%(directory)s" in the control_path option
+#
+# Example:
+# control_path_dir = /tmp/.ansible/cp
+#control_path_dir = ~/.ansible/cp
+
+# 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 hostames 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/%%h-%%r
+#control_path =
+
+# Enabling pipelining reduces the number of SSH operations required to
+# execute a module on the remote server. This can result in a significant
+# performance improvement when enabled, however when using "sudo:" you must
+# first disable 'requiretty' in /etc/sudoers
+#
+# By default, this option is disabled to preserve compatibility with
+# sudoers configurations that have requiretty (the default on many distros).
+#
+#pipelining = False
+
+# 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
+
+# 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 = False
+
+# The -tt argument is passed to ssh when pipelining is not enabled because sudo 
+# requires a tty by default. 
+#use_tty = True
+
+# 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
+
+# Configures the persistent connection retry timeout.  This value configures the
+# the retry timeout that ansible-connection will wait to connect
+# to the local domain socket. This value must be larger than the
+# ssh timeout (timeout) and less than persistent connection idle timeout (connect_timeout).
+# The default value is 15 seconds.
+#connect_retry_timeout = 15
+
+# 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 10 second.
+#command_timeout = 10
+
+[accelerate]
+#accelerate_port = 5099
+#accelerate_timeout = 30
+#accelerate_connect_timeout = 5.0
+
+# The daemon timeout is measured in minutes. This time is measured
+# from the last activity to the accelerate daemon.
+#accelerate_daemon_timeout = 30
+
+# 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,9p
+
+# Set this to yes to allow libvirt_lxc connections to work without SELinux.
+#libvirt_lxc_noseclabel = yes
+
+[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 = no
+
+# Set how many context lines to show in diff
+# context = 3

hosts.rpmnew

+# This is the default ansible 'hosts' file.
+#
+# It should live in /etc/ansible/hosts
+#
+#   - Comments begin with the '#' character
+#   - Blank lines are ignored
+#   - Groups of hosts are delimited by [header] elements
+#   - You can enter hostnames or ip addresses
+#   - A hostname/ip can be a member of multiple groups
+
+# Ex 1: Ungrouped hosts, specify before any group headers.
+
+## green.example.com
+## blue.example.com
+## 192.168.100.1
+## 192.168.100.10
+
+# Ex 2: A collection of hosts belonging to the 'webservers' group
+
+## [webservers]
+## alpha.example.org
+## beta.example.org
+## 192.168.1.100
+## 192.168.1.110
+
+# If you have multiple hosts following a pattern you can specify
+# them like this:
+
+## www[001:006].example.com
+
+# Ex 3: A collection of database servers in the 'dbservers' group
+
+## [dbservers]
+## 
+## db01.intranet.mydomain.net
+## db02.intranet.mydomain.net
+## 10.25.1.56
+## 10.25.1.57
+
+# Here's another example of host ranges, this time there are no
+# leading 0s:
+
+## db-[99:101]-node.example.com
+

roles/etcd/tasks/main.yaml

@@ -35,7 +35,7 @@
   when: ( order is defined ) and ( order == 1 )
 
 - name: fetch crt files
-  copy: 'src=/etc/kubernetes/pki/cfssl/{{ item }} dest=/tmp/{{ item }} mode=0644'
+  fetch: 'src=/etc/kubernetes/pki/cfssl/{{ item }} dest=/tmp/ mode=0644 flat=yes'
   with_items: '{{ etcd_crts }}'
   when: ( order is defined ) and ( order == 1 )
 

roles/install-etcd.retry

+10.1.86.202
+10.1.86.205