Class: MistAws::Ec2

Inherits:
Object
  • Object
show all
Defined in:
lib/mist_aws/ec2.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opts = {}) ⇒ Ec2 



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# File 'lib/mist_aws/ec2.rb', line 16

def initialize(opts={})
  # Ruby 1.9 backwards compatability
  opts = {profile_name: nil, region: nil, logger: ::Logger.new(STDERR)}.merge(opts)
  opts.each do |key, value|
    instance_variable_set "@#{key}", value
  end

  @iam = Iam.new(opts)
  @ec2_client = Aws::EC2::Client.new(credentials: @iam.credentials, region: @iam.region)
  @ec2 = Aws::EC2::Resource.new(client: @ec2_client)

end

Instance Attribute Details

#credentials ⇒ Object (readonly)

Returns the value of attribute credentials.



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# File 'lib/mist_aws/ec2.rb', line 9

def credentials
  @credentials
end

#ec2 ⇒ Object (readonly)

Returns the value of attribute ec2.



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# File 'lib/mist_aws/ec2.rb', line 14

def ec2
  @ec2
end

#ec2_client ⇒ Object (readonly)

Returns the value of attribute ec2_client.



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# File 'lib/mist_aws/ec2.rb', line 13

def ec2_client
  @ec2_client
end

#iam ⇒ Object (readonly)

Returns the value of attribute iam.



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# File 'lib/mist_aws/ec2.rb', line 12

def iam
  @iam
end

#logger ⇒ Object (readonly)

Returns the value of attribute logger.



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# File 'lib/mist_aws/ec2.rb', line 11

def logger
  @logger
end

#profile_name ⇒ Object (readonly)

These are read-only accessor and are initializeds by initialize method



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# File 'lib/mist_aws/ec2.rb', line 8

def profile_name
  @profile_name
end

#region ⇒ Object (readonly)

Returns the value of attribute region.



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# File 'lib/mist_aws/ec2.rb', line 10

def region
  @region
end

Instance Method Details

#authorize_security_group_ingress(opts = {}) ⇒ Object

Note the keys for opts must be strings not symbols



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# File 'lib/mist_aws/ec2.rb', line 60

def authorize_security_group_ingress(opts={})
  begin
    ec2_client.authorize_security_group_ingress(opts)
  rescue Aws::EC2::Errors::InvalidPermissionDuplicate
  end
end

#create_security_group(group_name, vpc_id, description = group_name) ⇒ Object 



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# File 'lib/mist_aws/ec2.rb', line 50

def create_security_group(group_name, vpc_id, description=group_name)
  begin
    ec2_client.create_security_group(group_name: group_name, vpc_id: vpc_id, description: description)
  rescue Aws::EC2::Errors::InvalidGroupDuplicate
  end
  # Seem to need to fetch it to get a valid security group struct
  get_security_group(group_name, vpc_id)
end

#create_vpc(cdr_block) ⇒ Object 



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# File 'lib/mist_aws/ec2.rb', line 67

def create_vpc(cdr_block)
  result = ec2_client.describe_vpcs(filters: [{ name: "cidr", values: [cdr_block]}])
  if result.vpcs == []
    ec2_client.create_vpc(cidr_block: cdr_block).vpc
  else
    result.vpcs.first
  end
end

#delete_security_group(group_name, vpc_id) ⇒ Object 



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# File 'lib/mist_aws/ec2.rb', line 45

def delete_security_group(group_name, vpc_id)
  group_id = get_security_group_id(group_name, vpc_id)
  ec2_client.delete_security_group(group_id: group_id) if group_id
end

#delete_vpc(vpc_id) ⇒ Object 



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# File 'lib/mist_aws/ec2.rb', line 76

def delete_vpc(vpc_id)
  begin
    ec2_client.delete_vpc(vpc_id: vpc_id)
  rescue Aws::EC2::Errors::InvalidVpcIDNotFound
    nil
  end
end

#get_security_group(group_name, vpc_id) ⇒ Object 



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# File 'lib/mist_aws/ec2.rb', line 29

def get_security_group(group_name, vpc_id)
  ec2_client.describe_security_groups(filters: [{ name: "vpc-id", values: [vpc_id]}]).security_groups.detect { |g| g.group_name == group_name }
end

#get_security_group_id(group_name, vpc_id) ⇒ Object 



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# File 'lib/mist_aws/ec2.rb', line 33

def get_security_group_id(group_name, vpc_id)
  if (group = get_security_group(group_name, vpc_id))
    group.group_id
  else
    nil
  end
end

#security_group_exists?(group_name, vpc_id) ⇒ Boolean 



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# File 'lib/mist_aws/ec2.rb', line 41

def security_group_exists?(group_name, vpc_id)
  get_security_group(group_name, vpc_id)
end