piculet

Piculet

Piculet is a tool to manage EC2 Security Group.

It defines the state of EC2 Security Group using DSL, and updates EC2 Security Group according to DSL.

Notice

• >= 0.2.9
  • Add ip/group duplicate check PR#16
  • Add --exclude-tags option PR#17
  • Support Template
  • Add --split-more option
  • Single port support: permission :tcp, 80

Installation

Add this line to your application's Gemfile:

gem 'piculet'

And then execute:

$ bundle

Or install it yourself as:

$ gem install piculet

Usage

export AWS_ACCESS_KEY_ID='...'
export AWS_SECRET_ACCESS_KEY='...'
export AWS_REGION='ap-northeast-1'
#export AWS_OWNER_ID='123456789012'
# Note: If you do not set the OWNER_ID,
#       Piculet get the OWNER_ID from GetUser(IAM) or CreateSecurityGroup(EC2)
piculet -e -o Groupfile  # export EC2 SecurityGroup
vi Groupfile
piculet -a --dry-run
piculet -a               # apply `Groupfile` to EC2 SecurityGroup

Help

Usage: piculet [options]
    -p, --profile PROFILE_NAME
        --credentials-path PATH
    -k, --access-key ACCESS_KEY
    -s, --secret-key SECRET_KEY
    -r, --region REGION
    -a, --apply
    -f, --file FILE
    -n, --names SG_LIST
    -x, --exclude SG_LIST
    -t, --exclude-tags TAG_LIST
        --ec2s VPC_IDS
        --dry-run
    -e, --export
    -o, --output FILE
        --split
        --split-more
        --format=FORMAT
        --no-color
        --debug

Groupfile example

require 'other/groupfile'

ec2 do
  security_group "default" do
    description "default group for EC2 Classic"

    tags(
      "key1" => "value1",
      "key2" => "value2"
    )

    ingress do
      permission :tcp, 0..65535 do
        groups(
          "default"
        )
      end
      permission :udp, 0..65535 do
        groups(
          "default"
        )
      end
      permission :icmp, -1..-1 do
        groups(
          "default"
        )
      end
      permission :tcp, 22..22 do
        ip_ranges(
          "0.0.0.0/0"
        )
      end
      permission :udp, 60000..61000 do
        ip_ranges(
          "0.0.0.0/0",
        )
      end
    end
  end
end

ec2 "vpc-XXXXXXXX" do
  security_group "default" do
    description "default VPC security group"

    tags(
      "key1" => "value1",
      "key2" => "value2"
    )

    ingress do
      permission :tcp, 22..22 do
        ip_ranges(
          "0.0.0.0/0",
        )
      end
      permission :tcp, 80..80 do
        ip_ranges(
          "0.0.0.0/0"
        )
      end
      permission :udp, 60000..61000 do
        ip_ranges(
          "0.0.0.0/0"
        )
      end
      # ESP (IP Protocol number: 50)
      permission :"50" do
        ip_ranges(
          "0.0.0.0/0"
        )
      end
      permission :any do
        groups(
          "any_other_group",
          "default"
        )
      end
    end

    egress do
      permission :any do
        ip_ranges(
          "0.0.0.0/0"
        )
      end
    end
  end

  security_group "any_other_group" do
    description "any_other_group"

    tags(
      "key1" => "value1",
      "key2" => "value2"
    )

    egress do
      permission :any do
        ip_ranges(
          "0.0.0.0/0"
        )
      end
    end
  end
end

Use Template

template "basic" do
  permission :tcp, 22..22 do
    ip_ranges(
      "0.0.0.0/0",
    )
  end
end

template "egress" do
  egress do
    permission :any do
      ip_ranges(
        context.ip_addr || "0.0.0.0/0"
      )
    end
  end
end

ec2 "vpc-XXXXXXXX" do
  security_group "default" do
    description "default VPC security group"

    ingress do
      include_template "basic"
    end

    include_template "egress", :ip_addr => "192.168.0.0/24"
  end
end

JSON Groupfile

{
  "vpc-12345678": {
    "sg-12345678": {
      "name": "default",
      "description": "default VPC security group",
      "tags": {
        "key": "val"
      },
      "owner_id": "123456789012",
      "ingress": [
        {
          "protocol": "any",
          "port_range": null,
          "ip_ranges": [

          ],
          "groups": [
            {
              "id": "sg-12345678",
              "name": "default",
              "owner_id": "123456789012"
            }
          ]
        },
        {
          "protocol": "tcp",
          "port_range": "22..22",
          "ip_ranges": [
            "0.0.0.0/0"
          ],
          "groups": [

          ]
        },
        {
          "protocol": "tcp",
          "port_range": "80..80",
          "ip_ranges": [
            "0.0.0.0/0"
          ],
          "groups": [

          ]
        }
      ],
      "egress": [
        {
          "protocol": "any",
          "port_range": null,
          "ip_ranges": [
            "0.0.0.0/0"
          ],
          "groups": [

          ]
        }
      ]
    }
  }
}

Export

$ piculet --export --format=json -o Groupfile.json

Apply

$ piculet --apply --format=json -f Groupfile.json

Similar tools

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For piculet developers

Minimum required IAM policy to run tests

user 'piculet', path: '/' do
  policy 'piculet' do
    {
      'Version' => '2012-10-17',
      'Statement' => [
        {
          'Effect' => 'Allow',
          'Action' => [
            'ec2:CreateSecurityGroup',
            'ec2:CreateTags',
            'ec2:DeleteTags',
            'ec2:DescribeSecurityGroups',
            'ec2:DescribeTags',
            'iam:GetUser',
          ],
          'Resource' => '*',
        },
        {
          'Effect' => 'Allow',
          'Action' => [
            'ec2:AuthorizeSecurityGroupEgress',
            'ec2:AuthorizeSecurityGroupIngress',
            'ec2:DeleteSecurityGroup',
            'ec2:RevokeSecurityGroupEgress',
            'ec2:RevokeSecurityGroupIngress',
          ],
          'Resource' => '*',
          'Condition' => {
            'StringEquals' => {
              'ec2:Vpc' => "arn:aws:ec2:#{ENV['TEST_AWS_REGION']}:#{ENV['TEST_OWNER_ID']}:vpc/#{ENV['TEST_VPC_ID']}",
            },
          },
        },
      ],
    }
  end
end