Class: Stackadmin

Inherits:
Object
  • Object
show all
Defined in:
lib/stackadmin/base.rb,
lib/stackadmin/log.rb,
lib/stackadmin/yaml.rb,
lib/stackadmin/audit.rb,
lib/stackadmin/patch.rb,
lib/stackadmin/version.rb,
lib/stackadmin/exceptions.rb

Overview

Core class of the Stackadmin gem

Defined Under Namespace

Classes: Exception, InvalidCommand, InvalidFlags, InvalidPatchStatus, YAMLTargetNotFound

Constant Summary collapse

VERSION =

Gem version

'1.0.0'

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(target, port = 22, debug = false, yml_file = nil) ⇒ Stackadmin

TODO:

All paramaters, -target, should be in an opt[] hash

Initializes a new Stackadmin object



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# File 'lib/stackadmin/base.rb', line 44

def initialize(target, port = 22, debug = false, yml_file = nil)
  @port = port
  @debug = debug
  yml_file ? parse_yaml(target, yml_file) : audit(target)
end

Instance Attribute Details

#fresh ⇒ Boolean (readonly) 



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# File 'lib/stackadmin/base.rb', line 34

class Stackadmin
  attr_reader :id, :version, :license, :nodes, :fresh

  # Initializes a new Stackadmin object
  # @param target [String] hostname/FQDN/IP address of the target node
  # @param port [Fixnum] port used to SSH into the target node
  # @param debug [Boolean] toggles display of debug information
  # @param yml_file [String, nil] pre-populated YAML file to pull node information from
  # @return [Stackadmin] new, populated object
  # @todo All paramaters, -target, should be in an opt[] hash
  def initialize(target, port = 22, debug = false, yml_file = nil)
    @port = port
    @debug = debug
    yml_file ? parse_yaml(target, yml_file) : audit(target)
  end

  # Refresh object data with a fresh audit
  # @param target [String, nil] optional hostname/FQDN/IP address of the target node
  # @todo Probably unneccessary? Deprecate?
  def refresh(target = nil)
    @id ||= target
    audit
  end

  # Parse through an SSH config to find possible Stackato hostnames
  # @param ssh_config [String] path to the SSH config file
  # @param filter [Array<String>] list of regex strings to filter out of found hostnames
  # @return [Array<String>] (optionally filtered) list of Stackato hostnames found
  def self.find_instances(ssh_config = '~/.ssh/config', filter = [])
    instances = IO.read(File.expand_path(ssh_config))
                  .scan(/^\s*Host (.*stackato.*)/)
                  .flatten
    filter.each { |f| instances.delete_if { |host| host =~ /#{f}/ } }
    instances
  end

  # Retrieves patch manifest
  # @param uri [String, nil] path to the manifest.json
  # @return [Hash] the patch manifest
  def manifest(uri = nil)
    unless @manifest
      uri ||= "https://get.stackato.com/kato-patch/#{@version}/manifest.json"
      log "Retrieving latest manifest from: #{uri}"
    end

    @manifest ||= JSON.load(open(uri)) rescue nil
  end

  private

  # Outputs formatted debug messages to stderr
  # @param msg [String] debug message to output
  # @return [String] formatted debug message
  def log(msg)
    $stderr.puts ">> #{msg}" if @debug
  end
end

#id ⇒ String (readonly) 



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# File 'lib/stackadmin/base.rb', line 34

class Stackadmin
  attr_reader :id, :version, :license, :nodes, :fresh

  # Initializes a new Stackadmin object
  # @param target [String] hostname/FQDN/IP address of the target node
  # @param port [Fixnum] port used to SSH into the target node
  # @param debug [Boolean] toggles display of debug information
  # @param yml_file [String, nil] pre-populated YAML file to pull node information from
  # @return [Stackadmin] new, populated object
  # @todo All paramaters, -target, should be in an opt[] hash
  def initialize(target, port = 22, debug = false, yml_file = nil)
    @port = port
    @debug = debug
    yml_file ? parse_yaml(target, yml_file) : audit(target)
  end

  # Refresh object data with a fresh audit
  # @param target [String, nil] optional hostname/FQDN/IP address of the target node
  # @todo Probably unneccessary? Deprecate?
  def refresh(target = nil)
    @id ||= target
    audit
  end

  # Parse through an SSH config to find possible Stackato hostnames
  # @param ssh_config [String] path to the SSH config file
  # @param filter [Array<String>] list of regex strings to filter out of found hostnames
  # @return [Array<String>] (optionally filtered) list of Stackato hostnames found
  def self.find_instances(ssh_config = '~/.ssh/config', filter = [])
    instances = IO.read(File.expand_path(ssh_config))
                  .scan(/^\s*Host (.*stackato.*)/)
                  .flatten
    filter.each { |f| instances.delete_if { |host| host =~ /#{f}/ } }
    instances
  end

  # Retrieves patch manifest
  # @param uri [String, nil] path to the manifest.json
  # @return [Hash] the patch manifest
  def manifest(uri = nil)
    unless @manifest
      uri ||= "https://get.stackato.com/kato-patch/#{@version}/manifest.json"
      log "Retrieving latest manifest from: #{uri}"
    end

    @manifest ||= JSON.load(open(uri)) rescue nil
  end

  private

  # Outputs formatted debug messages to stderr
  # @param msg [String] debug message to output
  # @return [String] formatted debug message
  def log(msg)
    $stderr.puts ">> #{msg}" if @debug
  end
end

#license ⇒ Hash (readonly)

Returns the details of the Stackato license installed on the node.

Examples:

Returned Hash

{
  'organization' => 'org',
  'serial' => 'S0F1E2D3C4D5',
  'type' => 'paid',
  'memory_limit' => 10,
  'expiration' => '2014-12-31'
}



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# File 'lib/stackadmin/base.rb', line 34

class Stackadmin
  attr_reader :id, :version, :license, :nodes, :fresh

  # Initializes a new Stackadmin object
  # @param target [String] hostname/FQDN/IP address of the target node
  # @param port [Fixnum] port used to SSH into the target node
  # @param debug [Boolean] toggles display of debug information
  # @param yml_file [String, nil] pre-populated YAML file to pull node information from
  # @return [Stackadmin] new, populated object
  # @todo All paramaters, -target, should be in an opt[] hash
  def initialize(target, port = 22, debug = false, yml_file = nil)
    @port = port
    @debug = debug
    yml_file ? parse_yaml(target, yml_file) : audit(target)
  end

  # Refresh object data with a fresh audit
  # @param target [String, nil] optional hostname/FQDN/IP address of the target node
  # @todo Probably unneccessary? Deprecate?
  def refresh(target = nil)
    @id ||= target
    audit
  end

  # Parse through an SSH config to find possible Stackato hostnames
  # @param ssh_config [String] path to the SSH config file
  # @param filter [Array<String>] list of regex strings to filter out of found hostnames
  # @return [Array<String>] (optionally filtered) list of Stackato hostnames found
  def self.find_instances(ssh_config = '~/.ssh/config', filter = [])
    instances = IO.read(File.expand_path(ssh_config))
                  .scan(/^\s*Host (.*stackato.*)/)
                  .flatten
    filter.each { |f| instances.delete_if { |host| host =~ /#{f}/ } }
    instances
  end

  # Retrieves patch manifest
  # @param uri [String, nil] path to the manifest.json
  # @return [Hash] the patch manifest
  def manifest(uri = nil)
    unless @manifest
      uri ||= "https://get.stackato.com/kato-patch/#{@version}/manifest.json"
      log "Retrieving latest manifest from: #{uri}"
    end

    @manifest ||= JSON.load(open(uri)) rescue nil
  end

  private

  # Outputs formatted debug messages to stderr
  # @param msg [String] debug message to output
  # @return [String] formatted debug message
  def log(msg)
    $stderr.puts ">> #{msg}" if @debug
  end
end

#nodes ⇒ Hash (readonly)

Returns the details of each node in the Stackato cluster.

Examples:

Returned Hash

{
  '127.0.0.1' => {
    roles: ['base', 'core']
  },
  '171.234.56.78' => {
    roles: ['base', 'dea']
  }
}



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# File 'lib/stackadmin/base.rb', line 34

class Stackadmin
  attr_reader :id, :version, :license, :nodes, :fresh

  # Initializes a new Stackadmin object
  # @param target [String] hostname/FQDN/IP address of the target node
  # @param port [Fixnum] port used to SSH into the target node
  # @param debug [Boolean] toggles display of debug information
  # @param yml_file [String, nil] pre-populated YAML file to pull node information from
  # @return [Stackadmin] new, populated object
  # @todo All paramaters, -target, should be in an opt[] hash
  def initialize(target, port = 22, debug = false, yml_file = nil)
    @port = port
    @debug = debug
    yml_file ? parse_yaml(target, yml_file) : audit(target)
  end

  # Refresh object data with a fresh audit
  # @param target [String, nil] optional hostname/FQDN/IP address of the target node
  # @todo Probably unneccessary? Deprecate?
  def refresh(target = nil)
    @id ||= target
    audit
  end

  # Parse through an SSH config to find possible Stackato hostnames
  # @param ssh_config [String] path to the SSH config file
  # @param filter [Array<String>] list of regex strings to filter out of found hostnames
  # @return [Array<String>] (optionally filtered) list of Stackato hostnames found
  def self.find_instances(ssh_config = '~/.ssh/config', filter = [])
    instances = IO.read(File.expand_path(ssh_config))
                  .scan(/^\s*Host (.*stackato.*)/)
                  .flatten
    filter.each { |f| instances.delete_if { |host| host =~ /#{f}/ } }
    instances
  end

  # Retrieves patch manifest
  # @param uri [String, nil] path to the manifest.json
  # @return [Hash] the patch manifest
  def manifest(uri = nil)
    unless @manifest
      uri ||= "https://get.stackato.com/kato-patch/#{@version}/manifest.json"
      log "Retrieving latest manifest from: #{uri}"
    end

    @manifest ||= JSON.load(open(uri)) rescue nil
  end

  private

  # Outputs formatted debug messages to stderr
  # @param msg [String] debug message to output
  # @return [String] formatted debug message
  def log(msg)
    $stderr.puts ">> #{msg}" if @debug
  end
end

#version ⇒ String (readonly) 



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# File 'lib/stackadmin/base.rb', line 34

class Stackadmin
  attr_reader :id, :version, :license, :nodes, :fresh

  # Initializes a new Stackadmin object
  # @param target [String] hostname/FQDN/IP address of the target node
  # @param port [Fixnum] port used to SSH into the target node
  # @param debug [Boolean] toggles display of debug information
  # @param yml_file [String, nil] pre-populated YAML file to pull node information from
  # @return [Stackadmin] new, populated object
  # @todo All paramaters, -target, should be in an opt[] hash
  def initialize(target, port = 22, debug = false, yml_file = nil)
    @port = port
    @debug = debug
    yml_file ? parse_yaml(target, yml_file) : audit(target)
  end

  # Refresh object data with a fresh audit
  # @param target [String, nil] optional hostname/FQDN/IP address of the target node
  # @todo Probably unneccessary? Deprecate?
  def refresh(target = nil)
    @id ||= target
    audit
  end

  # Parse through an SSH config to find possible Stackato hostnames
  # @param ssh_config [String] path to the SSH config file
  # @param filter [Array<String>] list of regex strings to filter out of found hostnames
  # @return [Array<String>] (optionally filtered) list of Stackato hostnames found
  def self.find_instances(ssh_config = '~/.ssh/config', filter = [])
    instances = IO.read(File.expand_path(ssh_config))
                  .scan(/^\s*Host (.*stackato.*)/)
                  .flatten
    filter.each { |f| instances.delete_if { |host| host =~ /#{f}/ } }
    instances
  end

  # Retrieves patch manifest
  # @param uri [String, nil] path to the manifest.json
  # @return [Hash] the patch manifest
  def manifest(uri = nil)
    unless @manifest
      uri ||= "https://get.stackato.com/kato-patch/#{@version}/manifest.json"
      log "Retrieving latest manifest from: #{uri}"
    end

    @manifest ||= JSON.load(open(uri)) rescue nil
  end

  private

  # Outputs formatted debug messages to stderr
  # @param msg [String] debug message to output
  # @return [String] formatted debug message
  def log(msg)
    $stderr.puts ">> #{msg}" if @debug
  end
end

Class Method Details

.find_instances(ssh_config = '~/.ssh/config', filter = []) ⇒ Array<String>

Parse through an SSH config to find possible Stackato hostnames



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# File 'lib/stackadmin/base.rb', line 62

def self.find_instances(ssh_config = '~/.ssh/config', filter = [])
  instances = IO.read(File.expand_path(ssh_config))
                .scan(/^\s*Host (.*stackato.*)/)
                .flatten
  filter.each { |f| instances.delete_if { |host| host =~ /#{f}/ } }
  instances
end

Instance Method Details

#install!(patches = [], node = nil, local = false, restart = true, force_update = false, manifest_file = nil) ⇒ Hash

TODO:

DRY this with ::mark! & ::reinstall! & ::revert!

TODO:

collapse args into opt{}

Installs patch(es) to the targeted Stackato cluster

Examples:

Returned Hash

{
  '127.0.0.1' => {
    installed: ['patch1', 'patch3'],
    not_installed: ['patch2']
  },
  '171.234.56.78' => {
    installed: ['patch1', 'patch2', 'patch3'],
    not_installed: []
  }
}



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# File 'lib/stackadmin/patch.rb', line 30

def install!(patches = [], node = nil, local = false, restart = true, force_update = false, manifest_file = nil)
  status = Hash.new
  output = patch('install', patches, node: node, local: local, no_restart: !restart, force_update: force_update, manifest: manifest_file)

  output.each do |p|
    p = p[:stdout]
    log "Job output:\n#{p}"
    p.gsub!(/\e\[\d+m/, '')    # Strip ASCII color

    p.scan(/^Failed installing update (.+?) on (.+?)\.$/).each do |fp|
      status[fp[1]] = {
        installed: [],
        not_installed: []
      } unless status.has_key?(fp[1])

      status[fp[1]][:not_installed] << fp[0]
    end

    p.scan(/^Successfully installed update (.+?) on (.+?)\.$/).each do |sp|
      status[sp[1]] = {
        installed: [],
        not_installed: []
      } unless status.has_key?(sp[1])

      status[sp[1]][:installed] << sp[0]
    end
  end

  status
end

#manifest(uri = nil) ⇒ Hash

Retrieves patch manifest



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# File 'lib/stackadmin/base.rb', line 73

def manifest(uri = nil)
  unless @manifest
    uri ||= "https://get.stackato.com/kato-patch/#{@version}/manifest.json"
    log "Retrieving latest manifest from: #{uri}"
  end

  @manifest ||= JSON.load(open(uri)) rescue nil
end

#mark!(patches = [], mark_installed = false, node = nil, local = false) ⇒ Hash

TODO:

DRY this with ::install! & ::reinstall! & ::revert!

TODO:

collapse args into opt{}

Marks patch(es) as installed or uninstalled on the targeted Stackato cluster Returns hash: { node1: [patch1, patch2], etc }

Examples:

Returned Hash

{
  '127.0.0.1' => ['patch1', 'patch2'],
  '171.234.56.78' => ['patch1', 'patch3']
}



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# File 'lib/stackadmin/patch.rb', line 99

def mark!(patches = [], mark_installed = false, node = nil, local = false)
  status = Hash.new
  output = v3_action_check('mark') do
             patch('mark', patches, node: node, local: local, mark_installed: mark_installed)
           end

  output.each do |p|
    p = p[:stdout]
    log "Job output:\n#{p}"
    p.gsub!(/\e\[\d+m/, '')   # Strip ASCII color

    p.scan(/^Successfully marked patch (.+?) as #{'not ' unless mark_installed}installed on (.+?)\.$/).each do |sp|
      # sp = Array of successfully marked patches
      # e.g. [["patch1-name", "node1-ip"], ["patch2-name", "node2-ip"]]
      status[sp[1]] = Array.new unless status.has_key?(sp[1])
      status[sp[1]] << sp[0]
    end
  end

  status
end

#refresh(target = nil) ⇒ Object

TODO:

Probably unneccessary? Deprecate?

Refresh object data with a fresh audit



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# File 'lib/stackadmin/base.rb', line 53

def refresh(target = nil)
  @id ||= target
  audit
end

#reinstall!(patches = [], node = nil, local = false, restart = true, force_update = false, manifest_file = nil) ⇒ Hash

TODO:

DRY this with ::install! & ::mark! & ::revert!

TODO:

collapse args into opt{}

Reinstalls patch(es) to the targeted Stackato cluster

Examples:

Returned Hash

{
  '127.0.0.1' => {
    installed: ['patch1', 'patch3'],
    not_installed: ['patch2']
  },
  '171.234.56.78' => {
    installed: ['patch1', 'patch2', 'patch3'],
    not_installed: []
  }
}



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# File 'lib/stackadmin/patch.rb', line 127

def reinstall!(patches = [], node = nil, local = false, restart = true, force_update = false, manifest_file = nil)
  if patches.empty?
    raise InvalidCommand, "kato patch reinstall requires a specific patchname!"
  else
    status = Hash.new
    output = patch('reinstall', patches, node: node, local: local, no_restart: !restart, force_update: force_update, manifest: manifest_file)

    output.each do |p|
      p = p[:stdout]
      log "Job output:\n#{p}"
      p.gsub!(/\e\[\d+m/, '')    # Strip ASCII color

      p.scan(/^Failed installing update (.+?) on (.+?)\.$/).each do |fp|
        # fp = Array of failed patches
        # e.g. [["patch1-name", "node1-ip"], ["patch2-name", "node2-ip"]]
        status[fp[1]] = {
          installed: [],
          not_installed: []
        } unless status.has_key?(fp[1])

        status[fp[1]][:not_installed] << fp[0]
      end

      p.scan(/^Successfully installed update (.+?) on (.+?)\.$/).each do |sp|
        # sp = Array of successful patches. See fp example above
        status[sp[1]] = {
          installed: [],
          not_installed: []
        } unless status.has_key?(sp[1])

        status[sp[1]][:installed] << sp[0]
      end
    end

    status
  end
end

#report(*args) ⇒ String

Retrieve a report from the targeted Stackato

Options Hash (*args):

  • :tarball (Symbol) —

    retrieve report as a tarball

  • :cluster (Symbol) —

    retrieve full cluster report

  • :destination (String) —

    where to save the report



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# File 'lib/stackadmin/log.rb', line 18

def report(*args)
  opts = (args.last.class == Hash) ? args.pop : Hash.new
  opts[:destination] = '.' unless opts.has_key?(:destination)

  cmd = 'kato report'
  query = /^Report generated at (.+)\. /
  output = nil

  if args.include?(:cluster)
    cmd += ' --cluster'
    query = /^Your cluster 'kato report' is available at (.+)\.$/
  end

  log "Generating #{'cluster ' if args.include?(:cluster)}report at #{@id}"
  ssh = Net::SSH.start(@id, 'stackato', port: @port)
  location = ssh.exec_sc!(cmd)[:stdout].match(query)[1]
  log "Report located at: #{@id}:#{location}"

  if args.include?(:tarball)
    filename = location.split('/').last
    output = File.expand_path(File.join(opts[:destination], filename))

    log "Downloading tarball to: #{output}"
    ssh.scp.download!(location, opts[:destination])
  else
    log 'Downloading report'
    tarball = StringIO.new(ssh.scp.download!(location))

    log "Decompressing report to: #{opts[:destination]}"
    decompress_report(tarball, opts[:destination])
    output = File.expand_path(opts[:destination])
    output = File.join(output, 'stackato-report') unless args.include?(:cluster)
  end

  ssh.close
  output
end

#reset!(node = nil, local = false) ⇒ Boolean

TODO:

collapse args into opt{}

Marks all of the targeted Stackato cluster’s patch updates as uninstalled



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# File 'lib/stackadmin/patch.rb', line 66

def reset!(node = nil, local = false)
  output = patch('reset', [], node: node, local: local)
  output[0][:stdout] =~ /^Updates state reset.$/ ? true : false
end

#revert!(patches = [], node = nil, local = false, restart = true, force_update = false, manifest_file = nil) ⇒ Hash

TODO:

DRY this with ::install! & ::mark!

TODO:

collapse args into opt{}

Revert patch(es) on the targeted Stackato cluster

Examples:

Returned Hash

{
  '127.0.0.1' => {
    reverted: [patch1, patch4],
    not_reverted: [patch5],
    unable_to_revert: [patch3]
  },
  '171.234.56.78' => {
    reverted: [patch1, patch2],
    not_reverted: [],
    unable_to_revert: [patch3, patch4, patch5]
  }
}



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# File 'lib/stackadmin/patch.rb', line 183

def revert!(patches = [], node = nil, local = false, restart = true, force_update = false, manifest_file = nil)
  status = Hash.new
  output = v3_action_check('revert') do
             patch('revert', patches, node: node, local: local, no_restart: !restart, force_update: force_update, manifest: manifest_file)
           end

  output.each do |p|
    p = p[:stdout]
    log "Job output:\n#{p}"
    p.gsub!(/\e\[\d+m/, '')    # Strip ASCII color

    p.scan(/^Failed reverting update (.+?) on (.+?)\.$/).each do |fp|
      # fp = Array of failed patches
      # e.g. [["patch1-name", "node1-ip"], ["patch2-name", "node2-ip"]]
      status[fp[1]] = {
        reverted: [],
        not_reverted: [],
        unable_to_revert: []
      } unless status.has_key?(fp[1])

      status[fp[1]][:not_installed] << fp[0]
    end

    p.scan(/^Successfully reverted update (.+?) on (.+?)\.$/).each do |sp|
      # sp = Array of successful patches. See fp example above
      status[sp[1]] = {
        reverted: [],
        not_reverted: [],
        unable_to_revert: []
      } unless status.has_key?(sp[1])

      status[sp[1]][:installed] << sp[0]
    end
  end

  status
end

#to_yaml ⇒ String 



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# File 'lib/stackadmin/yaml.rb', line 8

def to_yaml
  { 'id'      => @id,
    'version' => @version,
    'license' => @license,
    'nodes'   => @nodes }.to_yaml
end

#update!(node = nil, local = false, manifest_file = nil) ⇒ Boolean

TODO:

collapse args into opt{}

Updates the patch manifest for the targeted Stackato cluster



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# File 'lib/stackadmin/patch.rb', line 77

def update!(node = nil, local = false, manifest_file = nil)
  output = v3_action_check('update') do
             patch('update', [], node: node, local: local, manifest: manifest_file)
           end

  output[0][:stdout] =~ /^done!$/ ? true : false
end