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cfsystem

Configure a bare minimal production system regardless of its purpose
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Version information

  • 1.3.2 (latest)
  • 1.3.1
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released Nov 12th 2019
This version is compatible with:
  • Puppet Enterprise 2019.8.x, 2019.7.x, 2019.5.x, 2019.4.x, 2019.3.x, 2019.2.x, 2019.1.x, 2019.0.x, 2018.1.x, 2017.3.x, 2017.2.x, 2017.1.x, 2016.5.x, 2016.4.x
  • Puppet >=4.7.0 <7.0.0
  • ,

Start using this module

  • r10k or Code Manager
  • Bolt
  • Manual installation
  • Direct download

Add this module to your Puppetfile:

mod 'codingfuture-cfsystem', '1.3.2'
Learn more about managing modules with a Puppetfile

Add this module to your Bolt project:

bolt module add codingfuture-cfsystem
Learn more about using this module with an existing project

Manually install this module globally with Puppet module tool:

puppet module install codingfuture-cfsystem --version 1.3.2

Direct download is not typically how you would use a Puppet module to manage your infrastructure, but you may want to download the module in order to inspect the code.

Download

Documentation

codingfuture/cfsystem — version 1.3.2 Nov 12th 2019

cfsystem

Description

Configure a bare minimal production system regardless of its purpose. It depends on more specific cfnetwork, cfauth and cffirehol modules.

What it does:

  • Whatever cfnetwork does
  • Whatever cfauth does
  • Whatever cffirehol does
  • Setups APT for Debian and Ubuntu
  • Setups timezone
  • Setups hostname based on certname
  • Adds firewall rules as required
  • Setups special location/pool facts for hiera lookup (see cfsystem::hierapool below)
  • Setups email system
  • Setups NTP daemon and command line client for large gap sync
  • Setup all locales and the default locale (configurable)
  • Manages /etc/profile.d/ & adds allowed bin paths to sudo search_paths
  • Installs many handy system tools which almost any admin would expect
  • Forces noop scheduler on SSDs and virtual devices (in guests)
  • Forces custom I/O scheduler for real spinning HDDs (deadline by default)
  • Adds custom rc.local commands, if needed
  • Adds cron job to check if running kernel version matches the latest installed (reboot reminder)
  • Auto-detect hardware nodes with IPMI
    • Install generic IPMI tools
    • Install Dell-specific tools
    • Other vendors - TODO
  • Ruby framework for other cf* modules
  • The following helper scripts are installed
    • cf_clear_email_queue - clear all emails in exim queue
    • cf_clear_frozen_emails - clear only frozen emails in exim queue
    • cf_send_test_email - send test email to admin address
    • cf_kernel_version_check - check if kernel version mismatch the latest installed one
    • cf_auto_block_scheduler - setup auto-detected I/O scheduler per block device
    • cf_apt_key_updater <key_id> - run GPG key re-import, if expired
    • cf_ntpdate - run pre-configured ntpdate
  • Public API for Puppet parser:
    • Cfsystem::CpuWeight - cgroup CPU weight
    • Cfsystem::IoWeight - cgroup I/O weight
    • Cfsystem::Keytype - ssh key types
    • Cfsystem::Rsabit - RSA key bits
    • cfsystem::query - caching wrapper around puppetdb_query (cached per catalog)
    • cfsystem::stable_sort(arg) - deep sort of Hash/Array to avoid isomorphic configuration "change"
    • cfsystem::add_group($user, $group) >> Resource - make sure user is part of the group
    • cfsystem::gen_key(name, params, forced_key) - generate or save persistent SSH key
    • cfsystem::gen_pass(name, length, forced_pass) - generate or save persistent password
    • cfsystem::gen_port(name, forced_port) - allocate or save persistent network port
    • cfsystem::pretty_json(data) - return pretty formatted JSON string
    • cf_notify - replacement of standard notify to avoid refresh side-effects

Technical Support

Setup

Up to date installation instructions are available in Puppet Forge: https://forge.puppet.com/codingfuture/cfsystem

Please use librarian-puppet or cfpuppetserver module to deal with dependencies.

There is a known r10k issue RK-3 which prevents automatic dependencies of dependencies installation.

Examples

Please check codingufuture/puppet-test for example of a complete infrastructure configuration and Vagrant provisioning.

Implicitly created resources

cfnetwork::describe_services:
    puppet:
        server: 'tcp/8140'
    smtp:
        server: 'tcp/25'
    cfsmtp:
        server:
            - 'tcp/25'  # smtp
            - 'tcp/465' # smtps
            - 'tcp/587' # submission
    # if $cfsystem::add_repo_cacher
    'apcng':
        server: 'tcp/3142'
    # if $cfsystem::repo_proxy
    'aptproxy':
        server: "tcp/${proxy_port}"
cfnetwork::service_ports:
    # foreach $cfsystem::email::listen_ifaces
    "${listen_ifaces}:smtp:cfsystem": {}
    'local:smtp:cfsystem': {}
    # if $cfsystem::add_ntp_server
    "${cfsystem::service_face}:ntp": {}
    # if $cfsystem::add_repo_cacher
    "${cfsystem::service_face}:apcng:cfsystem": {}
    # if ${cfsystem::service_face} not in ['any', 'local']
    'local:apcng:cfsystem': {}
cfnetwork::client_ports:
    'any:puppet:cfsystem':
        user: 'root'
    'local:smtp:cfsystem': {}
    # if $smarthost = undef then dst filtering is disabled
    'any:cfsmtp:cfsystem':
        user => ['root', 'Debian-exim'],
        dst  => $smarthost
    'any:ntp:cfsystem':
        user => ['root', 'ntpd'],
    # if $cfsystem::add_repo_cacher
    'any:http:apcng':
        user: 'apt-cacher-ng'
    # if $cfsystem::add_repo_cacher
    'any:https:apcng':
        user: 'apt-cacher-ng'
    # if $cfsystem::repo_proxy
    'any:aptproxy:cfsystem':
        dst: $proxy_host
        user: 'root'
    # if not $cfsystem::repo_proxy
    'any:http:cfsystem':
        user: 'root'
    # if not $cfsystem::repo_proxy
    'any:https:cfsystem':
        user: 'root'

Class parameters

cfsystem class

  • allow_nfs = false - purge RPC packages unless true
  • admin_email = undef - email address to use for root and as the default sink
  • repo_proxy = undef - if set, use the config as HTTP/HTTPS proxy for package retrieval.
    • host - IP or hostname
    • port - TCP port
  • add_repo_cacher = false - if true, install apt-cacher-ng and accept clients on $service_face
  • service_face = 'any' - interface to accept client for NTP and HTTP proxy, if enabled separately
  • ntp_servers = [ '0.pool.ntp.org', '1.pool.ntp.org', '2.pool.ntp.org', '3.pool.ntp.org' ] - upstream NTP server
  • add_ntp_server = false - if true, accept NTP service clients on $service_face
  • Enum['ntp', 'openntpd', 'chrony', 'systemd'] $ntpd_type = 'systemd' - NTP implementation to use
  • timezone = 'Etc/UTC' - setup system timezone
  • apt_purge - passed to apt::purge, purge all sources and preferences by default
  • apt_update - passed to apt::update, update daily with 300 second timeout by default
  • apt_pin = 1001 - default priority (>=1001 - force downgrades to make the system consistent)
  • apt_backports_pin = 600 - default priority (>=1001 - force downgrades to make the system consistent)
  • real_hdd_scheduler - default scheduler for not SSD and not virtualized HDDs
  • rc_local - list of additional commands to add to /etc/rc.local (SSD and virtual is always 'noop')
  • puppet_host = "puppet.${::trusted['domain']}" - Puppet Server hostname
  • puppet_cahost = $puppet_host - Puppet CA hostname
  • puppet_env = $::environment - Puppet environment
  • puppet_use_dns_srv = false - enable support DNS SRV records instead of hostnames
  • mcollective = false - controls if mcollective service is enabled
  • locale = 'en_US.UTF-8' - default system locale
  • reserve_ram = 64 - amount of ram to reserve for system in automatic calculations
  • $key_server = 'hkp://pgp.mit.edu:80' - default PGP key server
  • $random_feed = true - enable random entropy generating daemon
  • $add_handy_tools = true - install additional tools
  • $puppet_backup_age = '1d' - how long to keep local puppet filebucket backups

cfsystem::bindir type

Setup /etc/profile.d/ & /etc/sudoers.d/ entries for trusted global bin paths. It should not be configured by user. It's API for other modules.

  • bin_dir - absolute path to directory for global search path

cfsystem::hierapool class

Automatically including by cfsystem. This values are useful in hiera.yaml configuration to setup hierarchy based on location and tenant/server pool in it. Example:

    ---
    :backends:
    - yaml
    :hierarchy:
    - "%{::trusted.domain}/%{::trusted.hostname}"
    - "%{::trusted.domain}"
    - "%{::cf_location}/%{::cf_location_pool}"
    - "%{::cf_location}"
    - common
    :merge_behavior: deeper
    :yaml:
    :datadir:
  • location = undef - if set, saved into /etc/cflocation
  • pool = undef - if set, aved into /etc/cflocationpool

cfsystem::email class

Setup email server for outgoing emails. Please not that this configuration is not intended to accept internet traffic.

  • smarthost = undef - if set, use as smarthost to relay outgoing emails through
  • smarthost_login = undef - if set, use as login on smarthost
  • smarthost_password = undef - if set, use as password on smarthost (plain text)
  • relay_nets = <private subnets> - allowed clients for SMTP relay, if relay is enabled with $listen_ifaces
  • listen_ifaces = undef - list of interface (cfnetwork::iface names), besides lo to listen for SMTP client relay
  • disable_ipv6 = true - if true, IPv6 supports gets disabled (most likely you need it disabled for SMTP)

cfsystem::sysctl class

Setup sysctl entries.

  • vm_swappiness = 1 - 0-100 (%) minimize swap activity by default
  • vm_mmax_map_count = 262144 - increased by default

cfsystem::debian class

Debian-specific configuration.

  • apt_url = 'http://deb.debian.org/debian' - APT base URL for Debian repos
  • security_apt_url = 'http://security.debian.org/' - APT base URL for Debian security repo
  • release = 'jessie' - Debian release name to configure

cfsystem::ubuntu class

Ubuntu-specific configuration.

  • apt_url = 'mirror://mirrors.ubuntu.com/mirrors.txt' - APT base URL for Ubuntu repos
  • release = 'wily' - Ubuntu release name to configure

cfsystem::debian::debconf type

  • package = $title - package to configure & install
  • ensure = present - passed to package ensure
  • config = [] - config entries for debconf-set-selections

cfsystem::apt::key type

Configure APT key & add automatic update of expired keys

  • id - PGP key ID
  • extra_opts = {} - any additional options for apt::key

cfsystem::dotenv type

A special helper to create entries in user ~/.env files

  • user - previously defined user{ $user: home => 'path'} ($home must be explicitly set)
  • variable - variable name
  • value - value
  • env_file = '.env' - name of .env file relative to $home

cfsystem::puppetpki type

Make actual Puppet PKI (CA, CRL, client cert and private key) data available to specific user. By default the data is copied under ~/pki/puppet/.

  • user = $title - local user to use
  • copy_key = true - if true then private keys of local machine are copied as well
  • pki_dir = undef - override the default destination folder

cfsystem::haproxy class

Setup haproxy package. No configuration. Used by other modules

  • $disable_standard = true - controls if default HAProxy service must be disabled

cfsystem::randomfeed class

Setup random entropy generating tools

  • $type = 'haveged' - tools type
  • $threshold = 2048 - minimal random entropy level

cfsystem::sshdir type

Create a basic ~/.ssh/ directory for unattended user account.

  • $user = $title - system user with 'home' parameter

cfsystem::clusterssh type

This feature is trade-off between SSH setup in cluster and security. This functionality creates a single SSH client key and shares across all nodes in cluster. It helps to get rid of puppet facts processing for target-generated secrets.

Besides shared private key, another problem is clear-text private key getting into puppet catalog (which should be secured as well).

  • $namespace - cluster namespace, e.g. 'cfdb'
  • $cluster - cluster identifier
  • $is_primary - controls if a new key can be generated
  • $peer_ipset - name of pre-defined cfnetwork::ipset
  • $user - system user with 'home' parameter
  • $group = $user - the user's group
  • $key_type = 'ed25519' - SSH key type
  • $key_bits = 2048 - SSH key bits (for RSA)

cfsystem::hwm class

Generic class for HardWare Management

  • Enum['none', 'auto', 'generic', 'dell', 'smc'] $type = 'auto' - select type of HW vendor, if auto-detection fails.

cfsystem::hwm::generic class

Just a placeholder for generic IPMI system.

cfsystem::hwm::dell class

Support for Dell PowerEdge family.

  • $community_repo = 'http://linux.dell.com/repo/community'

cfsystem::hwm::smc class

Placeholder for SuperMicro support. Not implemented yet.

cfsystem::pip class

Setup latest pip for Python 2&3 into /usr/local.

cfsystem::metric type

Mostly for internal purposes to declare items for cfmetrics monitoring.

cf_notify type

The standard notify type has a side effect - it generates refresh event what may harm automation which expects 0 exit code on no resource changes. Therefore, this drop-in replacement has been provided.

  • message = $title - message to show
  • loglevel = info - log level to use for the message

cfsystem_service type

Helper type to create cfsystem-integrated services.

cfsystem_timer type

Helper type to create cfsystem-integrated cron-like services.