Puppet Class: profile::etcd::tlsproxy

Defined in:
modules/profile/manifests/etcd/tlsproxy.pp

Overview

Parameters:

  • cert_name (Stdlib::Fqdn) (defaults to: lookup('profile::etcd::tlsproxy::cert_name'))

    the certificate cn

  • acls (Hash[Stdlib::Unixpath, Array[String]]) (defaults to: lookup('profile::etcd::tlsproxy::acls'))

    Hash of paths and the users allowed to access them

  • salt (String) (defaults to: lookup('profile::etcd::tlsproxy::salt'))

    salt used for htpasswd

  • read_only (Boolean) (defaults to: lookup('profile::etcd::tlsproxy::read_only'))

    indicate if the node is readonly

  • listen_port (Stdlib::Port) (defaults to: lookup('profile::etcd::tlsproxy::listen_port'))

    The port to listen on

  • upstream_port (Stdlib::Port) (defaults to: lookup('profile::etcd::tlsproxy::upstream_port'))

    The upstream port of etcd

  • tls_upstream (Boolean) (defaults to: lookup('profile::etcd::tlsproxy::tls_upstream'))

    The tls port to listen on

  • pool_pwd_seed (String) (defaults to: lookup('etcd::autogen_pwd_seed'))

    seed used for autogenrated passwords



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# File 'modules/profile/manifests/etcd/tlsproxy.pp', line 10

class profile::etcd::tlsproxy(
    Stdlib::Fqdn                          $cert_name     = lookup('profile::etcd::tlsproxy::cert_name'),
    Hash[Stdlib::Unixpath, Array[String]] $acls          = lookup('profile::etcd::tlsproxy::acls'),
    String                                $salt          = lookup('profile::etcd::tlsproxy::salt'),
    Boolean                               $read_only     = lookup('profile::etcd::tlsproxy::read_only'),
    Stdlib::Port                          $listen_port   = lookup('profile::etcd::tlsproxy::listen_port'),
    Stdlib::Port                          $upstream_port = lookup('profile::etcd::tlsproxy::upstream_port'),
    Boolean                               $tls_upstream  = lookup('profile::etcd::tlsproxy::tls_upstream'),
    String                                $pool_pwd_seed = lookup('etcd::autogen_pwd_seed')
) {
    require profile::tlsproxy::instance
    require passwords::etcd

    # this is a hash of user => password
    $accounts = $passwords::etcd::accounts

    # The testserver cluster is a bit peculiar: it is in conftool but doesn't have a load-balancer.
    # So we need to add it to the list manually.
    $base_acls = {
        '/conftool/v1/pools/eqiad/testserver' => ['root', 'conftool', 'pool-eqiad-testserver'],
        '/conftool/v1/pools/codfw/testserver' => ['root', 'conftool', 'pool-codfw-testserver'],
    }

    # Autogenerate the acls for all the conftool pools.
    # Else all autogenerated users will share the same password seed.
    $pool_acls = wmflib::service::fetch(true).map |$name, $service| {
        $cl = $service['lvs']['conftool']['cluster']
        $service['sites'].map |$dc| {
            {"/conftool/v1/pools/${dc}/${cl}" => ['root', 'conftool', "pool-${dc}-${cl}"]}
        }.reduce({}) |$m, $v| { $m.merge($v) }
    }
    .reduce($base_acls) |$memo, $val| { $memo.merge($val) }
    $all_acls = $acls.merge($pool_acls)

    # TODO: also support TLS cert auth to the backend
    $upstream_scheme = $tls_upstream ? {
        true    => 'https',
        default => 'http'
    }

    $upstream_host = $tls_upstream ? {
        true    => $facts['networking']['fqdn'],
        default => '127.0.0.1',
    }
    sslcert::certificate { $cert_name:
        skip_private => false,
        use_cergen   => true,
        before       => Service['nginx'],
    }

    monitoring::service { 'etcd-tlsproxy-ssl':
        description   => "etcd tlsproxy SSL ${upstream_host}:${listen_port}",
        check_command => "check_ssl_on_host_port!${upstream_host}!${upstream_host}!${listen_port}",
        notes_url     => 'https://wikitech.wikimedia.org/wiki/Cergen',
    }

    file { '/etc/nginx/auth/':
        ensure => directory,
        mode   => '0550',
        owner  => 'www-data',
        before => Service['nginx'],
    }

    file { '/etc/nginx/etcd-errors':
        ensure => directory,
        mode   => '0550',
        owner  => 'www-data',
        before => Service['nginx'],
    }

    # Simulate the etcd auth error
    file { '/etc/nginx/etcd-errors/401.json':
        ensure  => file,
        mode    => '0444',
        content => '{"errorCode":110,"message":"The request requires user authentication","cause":"Insufficient credentials","index":0}',
    }

    file { '/etc/nginx/etcd-errors/readonly.json':
        ensure  => file,
        mode    => '0444',
        content => '{"errorCode":107,"message":"This cluster is in read-only mode","cause":"Cluster configured to be read-only","index":0}',
    }

    $all_acls.each |$path, $users| {
        $file_location = regsubst($path, '/', '_', 'G')
        $file_name = "/etc/nginx/auth/${file_location}.htpasswd"

        file { $file_name:
            content => template('profile/etcd/htpasswd.erb'),
            owner   => 'www-data',
            group   => 'www-data',
            mode    => '0444',
        }
    }

    nginx::site { 'etcd_tls_proxy':
        ensure  => present,
        content => template('profile/etcd/tls_proxy.conf.erb'),
    }
}