Module: Gaptool::Data

Defined in:
lib/helpers/data.rb

Class Method Summary collapse

Class Method Details

.add_app(name, role) ⇒ Object 



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# File 'lib/helpers/data.rb', line 220

def self.add_app(name, role)
  return if name.nil? || role.nil?
  $redis.multi do
    $redis.sadd("apps", name)
    $redis.sadd("role:#{role}:apps", name)
    $redis.set("app:#{name}", role)
  end
end

.addserver(instance, data, secret) ⇒ Object 



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# File 'lib/helpers/data.rb', line 15

def self.addserver(instance, data, secret)
  role = data['role']
  environment = data['environment']
  if role.nil? || environment.nil?
    raise ArgumentError, "Missing role or environment"
  end

  if instance.nil? || instance.empty?
    raise ArgumentError, "Missing instance"
  end

  $redis.sadd("instances", instance)
  $redis.sadd("role:#{role}:instances", instance)
  $redis.sadd("environment:#{environment}:instances", instance)
  unless secret.nil?
    data['registered'] = false
    $redis.sadd('instances:unregistered', instance)
    $redis.set("instances:secrets:#{data['role']}:#{data['environment']}:#{secret}", instance)
    data['secret'] = secret
  end
  save_server_data instance, data
end

.apps ⇒ Object 



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# File 'lib/helpers/data.rb', line 251

def self.apps
  $redis.smembers("apps")
end

.apps_in_role(role) ⇒ Object 



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# File 'lib/helpers/data.rb', line 255

def self.apps_in_role(role)
  $redis.smembers("role:#{role}:apps")
end

.default_runlist ⇒ Object 



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# File 'lib/helpers/data.rb', line 11

def self.default_runlist
  [init_recipe]
end

.del_config(key) ⇒ Object 



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# File 'lib/helpers/data.rb', line 116

def self.del_config(key)
  $redis.hdel('config', key)
end

.ensure_config(key, default) ⇒ Object 



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# File 'lib/helpers/data.rb', line 105

def self.ensure_config(key, default)
  cur = get_config(key)
  cur = set_config(key, default) if cur.nil? || cur.empty?
  cur
end

.get_all_configs ⇒ Object 



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# File 'lib/helpers/data.rb', line 120

def self.get_all_configs
  $redis.hgetall('config')
end

.get_ami_for_role(role, region = nil) ⇒ Object 



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# File 'lib/helpers/data.rb', line 179

def self.get_ami_for_role(role, region=nil)

  $redis.hget("role:#{role}:amis", region) || $redis.hget("amis", region)
end

.get_app_data(app) ⇒ Object 



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# File 'lib/helpers/data.rb', line 246

def self.get_app_data(app)
  role = $redis.get("app:#{app}")
  return {"role" => role } unless role.nil?
end

.get_config(key) ⇒ Object 



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# File 'lib/helpers/data.rb', line 101

def self.get_config(key)
  $redis.hget('config', key)
end

.get_role_data(role) ⇒ Object 



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# File 'lib/helpers/data.rb', line 172

def self.get_role_data(role)
  res = $redis.hgetall("role:#{role}")
  res['apps'] = apps_in_role(role)
  res['amis'] = $redis.hgetall("role:#{role}:amis")
  res
end

.get_runlist_for_role(role) ⇒ Object 



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# File 'lib/helpers/data.rb', line 184

def self.get_runlist_for_role(role)
  rl = $redis.hget("role:#{role}", "chef_runlist")
  return nil if rl.nil?
  rl = JSON.parse rl
  return nil if rl == default_runlist
  rl
end

.get_server_data(instance, opts = {}) ⇒ Object 



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# File 'lib/helpers/data.rb', line 124

def self.get_server_data(instance, opts={})
  rs = $redis.hgetall("instance:#{instance}")
  return nil if rs.nil? || rs.empty?
  rs['instance'] = instance
  if !rs['chef_runlist'].nil? && !rs['chef_runlist'].empty?
    rs['chef_runlist'] = JSON.parse rs['chef_runlist']
  else
    rs['chef_runlist'] = get_runlist_for_role rs['role']
  end

  %w(chef_repo chef_branch).each do |v|
    if rs[v].nil? || rs[v].empty?
      rs[v] = get_config(v)
    end
  end

  if opts[:initkey]
    rs['initkey'] = get_config('initkey')
  end

  if !rs['terminable'].nil? && rs['terminable'] == "false"
    rs['terminable'] = false
  else
    rs.delete('terminable')
  end

  if opts[:force_runlist] && rs['chef_runlist'].nil?
    rs['chef_runlist'] = default_runlist
  end

  rs['apps'] = apps_in_role(rs['role'])
  rs.delete_if {|k,v| v.nil? || (!!v != v && v.empty?)}
end

.init_recipe ⇒ Object 



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# File 'lib/helpers/data.rb', line 7

def self.init_recipe
  'recipe[init]'
end

.overwrite_hash(key, data) ⇒ Object 



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# File 'lib/helpers/data.rb', line 38

def self.overwrite_hash(key, data)
  if !key.nil? && !data.nil? && !data.empty?
    $redis.multi do
      $redis.del(key)
      $redis.hmset(key, *data.select{ |k,v| !v.nil? && ((v.is_a?(String) && !v.empty?) || !!v == v)}.flatten)
    end
  end
end

.register_server(role, environment, secret) ⇒ Object 



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# File 'lib/helpers/data.rb', line 69

def self.register_server(role, environment, secret)
  key = "instances:secrets:#{role}:#{environment}:#{secret}"
  instance = nil
  $redis.watch(key) do
    instance = $redis.get(key)
    if !instance.nil? && !instance.empty?
      $redis.multi do |m|
        m.hdel("instance:#{instance}", "secret")
        m.hdel("instance:#{instance}", "registered")
        m.srem('instances:unregistered', instance)
        m.del(key)
      end
    else
      $redis.unwatch
      instance = nil
    end
  end
  instance
end

.remove_app(name) ⇒ Object 



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# File 'lib/helpers/data.rb', line 229

def self.remove_app(name)
  return if name.nil?
  key = "app:#{name}"
  $redis.watch(key) do
    role = $redis.get(key)
    if !role.nil?
      $redis.multi do |m|
        m.del(key)
        m.srem("apps", name)
        m.srem("role:#{role}:apps", name)
      end
    else
      $redis.unwatch
    end
  end
end

.rmserver(instance) ⇒ Object 



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# File 'lib/helpers/data.rb', line 89

def self.rmserver(instance)
  data = get_server_data instance
  return if data.nil?
  $redis.multi do |m|
    m.srem("instances", instance)
    m.srem("role:#{data['role']}:instances", instance)
    m.srem("environment:#{data['environment']}:instances", instance)
    m.del("instance:#{instance}")
  end
  instance
end

.roles ⇒ Object 



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# File 'lib/helpers/data.rb', line 216

def self.roles
  Hash[$redis.smembers("roles").map {|r| [r, get_role_data(r)] }]
end

.save_role_data(role, data) ⇒ Object 



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# File 'lib/helpers/data.rb', line 158

def self.save_role_data(role, data)
  return if role.nil? || data.nil?
  if data['amis']
    amis = data.delete("amis") || {}
    overwrite_hash("role:#{role}:amis", amis)
  end
  if data['apps']
    apps = data.delete("apps") || []
    apps.each {|a| add_app(a, role)}
  end
  overwrite_hash("role:#{role}", data)
  $redis.sadd("roles", role)
end

.save_server_data(instance, data) ⇒ Object 



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# File 'lib/helpers/data.rb', line 52

def self.save_server_data(instance, data)

  unless data['chef_runlist'].nil?
    data['chef_runlist'] = [*data['chef_runlist']]
    unless data['chef_runlist'].include? init_recipe
      data['chef_runlist'].unshift(init_recipe)
    end

    if data['chef_runlist'] == default_runlist
      data.delete('chef_runlist')
    else
      data['chef_runlist'] = data['chef_runlist'].to_json
    end
  end
  overwrite_hash("instance:#{instance}", data)
end

.servers ⇒ Object 



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# File 'lib/helpers/data.rb', line 212

def self.servers
  $redis.smembers("instances")
end

.servers_in_env(env) ⇒ Object 



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# File 'lib/helpers/data.rb', line 204

def self.servers_in_env(env)
  $redis.smembers("environment:#{env}:instances")
end

.servers_in_role(role) ⇒ Object 



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# File 'lib/helpers/data.rb', line 200

def self.servers_in_role(role)
  $redis.smembers("role:#{role}:instances")
end

.servers_in_role_env(role, env) ⇒ Object 



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# File 'lib/helpers/data.rb', line 208

def self.servers_in_role_env(role, env)
  $redis.sinter("role:#{role}:instances", "environment:#{env}:instances")
end

.set_amis(amis) ⇒ Object 



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# File 'lib/helpers/data.rb', line 192

def self.set_amis(amis)
  overwrite_hash("amis", amis)
end

.set_config(key, value) ⇒ Object 



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# File 'lib/helpers/data.rb', line 111

def self.set_config(key, value)
  $redis.hset('config', key, value)
  value
end

.set_server_data_attr(instance, attr, value) ⇒ Object 



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# File 'lib/helpers/data.rb', line 47

def self.set_server_data_attr(instance, attr, value)
  return if value.nil? || (value.is_a?(String) && value.empty?) || !!value == value
  $redis.hset("instance:#{instance}", attr, value)
end

.stringify_apps(rs) ⇒ Object 



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# File 'lib/helpers/data.rb', line 259

def self.stringify_apps(rs)
  unless rs['apps'].nil?
    rs['apps'] = rs['apps'].to_json
  end
  rs
end

.user(user) ⇒ Object 



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# File 'lib/helpers/data.rb', line 280

def self.user(user)
  userdesc = {username: user, key: $redis.hget('users', user)}
  return userdesc[:key].nil? ? nil : userdesc
end

.useradd(user, key = nil) ⇒ Object 



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# File 'lib/helpers/data.rb', line 266

def self.useradd(user, key=nil)
  key = SecureRandom.hex(64) unless key
  $redis.hset('users', user, key)
  {username: user, key: key}
end

.userdel(user) ⇒ Object 



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# File 'lib/helpers/data.rb', line 272

def self.userdel(user)
  $redis.hdel('users', user)
end

.users ⇒ Object 



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# File 'lib/helpers/data.rb', line 276

def self.users
  $redis.hgetall('users')
end

.zones ⇒ Object 



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# File 'lib/helpers/data.rb', line 196

def self.zones
  $redis.hgetall('amis').keys
end