Class: CloudFormationTool::CloudFormation::Stack
- Inherits:
-
Object
- Object
- CloudFormationTool::CloudFormation::Stack
show all
- Includes:
- CloudFormationTool, Storable, Enumerable
- Defined in:
- lib/cloud_formation_tool/cloud_formation/stack.rb
Constant Summary
VERSION
Instance Attribute Summary collapse
Instance Method Summary
collapse
#aws_config, #awsas, #awscf, #awscreds, #awsec2, #awss3, #cf_bucket_name, #find_profile, #profile, #region, #s3_bucket_name
Methods included from Storable
#make_filename, #upload
Constructor Details
#initialize(name) ⇒ Stack
Returns a new instance of Stack.
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# File 'lib/cloud_formation_tool/cloud_formation/stack.rb', line 11
def initialize(name)
@name = name
@seenev = Set.new
@watch_timeouts = 0
end
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Instance Attribute Details
#name ⇒ Object
Returns the value of attribute name.
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# File 'lib/cloud_formation_tool/cloud_formation/stack.rb', line 9
def name
@name
end
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Instance Method Details
#asgroups ⇒ Object
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# File 'lib/cloud_formation_tool/cloud_formation/stack.rb', line 101
def asgroups
resources.select do |res|
res.resource_type == 'AWS::AutoScaling::AutoScalingGroup'
end.collect do |res|
res.extend(CloudFormationTool)
res.instance_eval do
def group
Aws::AutoScaling::AutoScalingGroup.new(self.physical_resource_id, client: awsas).reload
end
end
res
end
end
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#create(template, params = {}) ⇒ Object
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# File 'lib/cloud_formation_tool/cloud_formation/stack.rb', line 49
def create(template, params = {})
@template = CloudFormation.parse(template).to_yaml(params)
url = upload(make_filename('yaml'), @template, gzip: false)
return update(url, template, params) if exist?
log "Creating stack '#{name}' from '#{template}' params #{params.inspect}"
valid_check do
resp = awscf.create_stack({
stack_name: @name,
template_url: url,
capabilities: %w(CAPABILITY_IAM CAPABILITY_NAMED_IAM),
on_failure: "DO_NOTHING", parameters: params.collect do |k,v|
{
parameter_key: k.to_s,
parameter_value: v.to_s,
use_previous_value: false,
}
end
})
@stack_id = resp.stack_id
end
end
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#delete ⇒ Object
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# File 'lib/cloud_formation_tool/cloud_formation/stack.rb', line 17
def delete
awscf.delete_stack stack_name: @name
end
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#each ⇒ Object
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# File 'lib/cloud_formation_tool/cloud_formation/stack.rb', line 146
def each
token = nil
sleep(if @_last_poll_time.nil?
0
else
diff = Time.now - @_last_poll_time
if diff < 1
diff
else
0
end
end)
begin
resp = awscf.describe_stack_events stack_name: name, next_token: token
@watch_timeouts = 0
resp.stack_events.each do |ev|
yield ev
end
rescue Aws::CloudFormation::Errors::Throttling => e
sleep 1
retry
rescue Seahorse::Client::NetworkingError => e if (@watch_timeouts += 1) > 5
raise CloudFormationTool::Errors::AppError, "Too many timeouts!"
else
retry
end
rescue Aws::CloudFormation::Errors::ValidationError => e
if e.message =~ /does not exist/
raise CloudFormationTool::Errors::StackDoesNotExistError, "Stack does not exist"
else
raise e
end
end
end
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#exist? ⇒ Boolean
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# File 'lib/cloud_formation_tool/cloud_formation/stack.rb', line 21
def exist?
begin
awscf.describe_stacks stack_name: name
true
rescue Aws::CloudFormation::Errors::ValidationError => e
false
end
end
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#monitor(start_time = nil) ⇒ Object
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# File 'lib/cloud_formation_tool/cloud_formation/stack.rb', line 119
def monitor(start_time = nil)
done = false
begin
until done
reverse_each do |ev|
next if @seenev.add?(ev.event_id).nil?
text = "#{ev.timestamp.strftime "%Y-%m-%d %H:%M:%S"}| " + %w(
resource_type:40
logical_resource_id:38
resource_status
).collect { |field|
(name,size) = field.split(":")
size ||= 1
ev.send(name.to_sym).ljust(size.to_i, ' ')
}.join(" ")
text += " " + ev.resource_status_reason if ev.resource_status =~ /_FAILED/
if start_time.nil? or start_time < ev.timestamp
puts text
end
done = (ev.resource_type == "AWS::CloudFormation::Stack" and ev.resource_status =~ /(_COMPLETE|_FAILED)$/)
end
end
rescue CloudFormationTool::Errors::StackDoesNotExistError => e
puts "Stack #{name} does not exist"
end
end
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#output ⇒ Object
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# File 'lib/cloud_formation_tool/cloud_formation/stack.rb', line 76
def output
begin
key_width = 0
resp = awscf.list_exports
resp.exports.select do |exp|
exp.exporting_stack_id == stack_id
end.each do |exp|
key_width = [ key_width, exp.name.length ].max
end.collect do |exp|
"%-#{key_width}s: %s" % [ exp.name, exp.value ]
end
rescue Aws::CloudFormation::Errors::ValidationError => e
raise CloudFormationTool::Errors::AppError, "Failed to get resources: #{e.message}"
end
end
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#resources ⇒ Object
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# File 'lib/cloud_formation_tool/cloud_formation/stack.rb', line 92
def resources
begin
resp = awscf.describe_stack_resources stack_name: @name
resp.stack_resources
rescue Aws::CloudFormation::Errors::ValidationError => e
raise CloudFormationTool::Errors::AppError, "Failed to get resources: #{e.message}"
end
end
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#see_events ⇒ Object
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# File 'lib/cloud_formation_tool/cloud_formation/stack.rb', line 115
def see_events
each { |e| @seenev << e.event_id }
end
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#stack_id ⇒ Object
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# File 'lib/cloud_formation_tool/cloud_formation/stack.rb', line 72
def stack_id
@stack_id ||= awscf.describe_stacks(stack_name: @name).stacks.first.stack_id
end
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#update(url, filepath, params = {}) ⇒ Object
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# File 'lib/cloud_formation_tool/cloud_formation/stack.rb', line 30
def update(url, filepath, params = {})
log "Updating existing stack '#{name}' from '#{filepath}' params #{params.inspect}"
valid_check do
resp = awscf.update_stack({
stack_name: @name,
template_url: url,
capabilities: %w(CAPABILITY_IAM CAPABILITY_NAMED_IAM),
parameters: params.collect do |k,v|
{
parameter_key: k.to_s,
parameter_value: v.to_s,
use_previous_value: false,
}
end
})
resp.stack_id
end
end
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