├── CloudGrapher.png ├── DefaultSG.jpg ├── Instances.png ├── LICENSE ├── LR.png ├── README.md ├── SimpleGraph.png ├── TB.png ├── defaults └── main.yml ├── handlers └── main.yml ├── meta └── main.yml ├── tasks └── main.yml ├── templates └── aws-fullsg-instances.dot.j2 ├── tests ├── inventory └── test.yml └── vars └── main.yml /CloudGrapher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/jeanlouisferey/aws-securitygroup-grapher/091c80d8a0c77d7d3cc85923de06b9b7e9c6a469/CloudGrapher.png -------------------------------------------------------------------------------- /DefaultSG.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/jeanlouisferey/aws-securitygroup-grapher/091c80d8a0c77d7d3cc85923de06b9b7e9c6a469/DefaultSG.jpg -------------------------------------------------------------------------------- /Instances.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/jeanlouisferey/aws-securitygroup-grapher/091c80d8a0c77d7d3cc85923de06b9b7e9c6a469/Instances.png -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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The text should be enclosed in the appropriate 184 | comment syntax for the file format. We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [2018] [Jean-Louis FEREY] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /LR.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/jeanlouisferey/aws-securitygroup-grapher/091c80d8a0c77d7d3cc85923de06b9b7e9c6a469/LR.png -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # aws-securitygroup-grapher 2 | 3 | This ansible role gets information from an aws VPC and generate a [graphical representation](CloudGrapher.png) of security groups through a dot file rendered by [Graphviz](https://graphviz.gitlab.io/). 4 | 5 | This role is inspired by https://github.com/jeanlouisferey/openstack-securitygroup-grapher which do the same for Openstack Tenants. 6 | 7 | ## Requirements 8 | 9 | [Ansible](https://www.ansible.com/), of course, because it's an Ansible role. 10 | 11 | [Boto](https://aws.amazon.com/fr/sdk-for-python/) library needs to be installed, as that is required by the EC2 Ansible modules. 12 | 13 | To render (i.e. to draw and obtain a graphic file), Graphviz needs to be installed. 14 | 15 | ## Role Variables 16 | 17 | | Variable | Content | 18 | | --- | --- | 19 | | **asggrapherAwsRegion** | Name of aws region where your VPC is deployed. (**mandatory**) | 20 | | **asggrapherAwsVPC** | Name of your VPC. (**mandatory**) | | | 21 | | asggrapherShowDefault | Do you want to see default security group, default value: false | 22 | | asggrapherShowInstances | Do you want to see instances with their security groups, default value: false | 23 | | asggrapherServerLabel | Label for instances, used when asggrapherShowInstances = true, default value: Servers | 24 | | asggrapherRankdir | See , default value: LR | 25 | | asggrapherDotFileToRender | Path and name of generated dot file , default value: "./awsCloudGrapher.dot" | 26 | | asggrapherFileToRender | Path and name of generated image file, default value: "./awsCloudGrapher.png" | 27 | 28 | ## Example Playbook 29 | 30 | aws-sg-grapher.yml: 31 | ~~~yaml 32 | --- 33 | - name: AWS Security group grapher 34 | hosts: localhost 35 | connection: local 36 | gather_facts: false 37 | roles: 38 | - role: aws-securitygroup-grapher 39 | asggrapherAwsRegion: "eu-west-1" 40 | asggrapherAwsVPC: "TEST-VPC" 41 | ~~~ 42 | 43 | Run it with: 44 | 45 | ~~~shell 46 | ansible-playbook aws-sg-grapher.yml 47 | ~~~ 48 | 49 | After some time, you'll have a awsCloudGrapher.png file with your sg graph. 50 | 51 | ## Examples of generated images 52 | 53 | ### How to read the graph 54 | 55 | Ellipses are *security groups.* 56 | 57 | The red arrows represent *egress* flows: for example, the UDP stream 53 is authorized as output of SG-VPC-INTERNAL to 10.xxx.yyy.zza. 58 | 59 | The blue arrows represent *ingress* flows: for example, tcp stream 443 is allowed as input of SG-VPC-LB from any (0.0.0.0/0) 60 | 61 | The arrow head is always on the security group which contains the rule represented by the arrow. 62 | 63 | ### Full example 64 | 65 | *It shows a tenant with several security groups corresponding to the different functions of the machines present in the project.* 66 | 67 | ![Example](CloudGrapher.png) 68 | 69 | ### Simpler example 70 | 71 | *It shows in particular a SG that accepts any input from any source and a SG that allows any output to any destination.* 72 | 73 | ![Example](SimpleGraph.png) 74 | 75 | ### asggrapherShowDefault 76 | 77 | With asggrapherShowDefault: true, you'll have on your graph all the SGs, included the default AWS SG: 78 | 79 | ![Example](DefaultSG.jpg) 80 | 81 | ### asggrapherShowInstances 82 | 83 | With asggrapherShowInstances: true, you'll have on your graph all the instances (VM) within SGs used by these instances. 84 | 85 | ![Example](Instances.png) 86 | 87 | ### asggrapherRankdir 88 | 89 | With asggrapherRankdir: LR, left to right, RL, right to left, TB, top to bottom, BT, bottom to top, you can change the way to draw the graph. 90 | 91 | #### LR example 92 | 93 | ![Example](LR.png) 94 | 95 | #### TB example 96 | 97 | ![Example](TB.png) 98 | 99 | ## Author Information 100 | 101 | Jean-Louis FEREY 102 | 103 | ## Stargazers over time 104 | 105 | [![Stargazers over time](https://starchart.cc/jeanlouisferey/aws-securitygroup-grapher.svg)](https://starchart.cc/jeanlouisferey/aws-securitygroup-grapher) 106 | -------------------------------------------------------------------------------- /SimpleGraph.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/jeanlouisferey/aws-securitygroup-grapher/091c80d8a0c77d7d3cc85923de06b9b7e9c6a469/SimpleGraph.png -------------------------------------------------------------------------------- /TB.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/jeanlouisferey/aws-securitygroup-grapher/091c80d8a0c77d7d3cc85923de06b9b7e9c6a469/TB.png -------------------------------------------------------------------------------- /defaults/main.yml: -------------------------------------------------------------------------------- 1 | --- 2 | # defaults file for aws-securitygroup-grapher 3 | 4 | # do you want to see default security group 5 | asggrapherShowDefault: false 6 | 7 | # do you want to see instances with their security groups 8 | asggrapherShowInstances: false 9 | 10 | # see https://www.graphviz.org/doc/info/attrs.html#d:rankdir 11 | # possible values: 12 | # LR, left to right 13 | # RL, right to left 14 | # TB, top to bottom 15 | # BT, bottom to top 16 | asggrapherRankdir: "LR" 17 | 18 | asggrapherDotFileToRender: "./awsCloudGrapher.dot" 19 | 20 | asggrapherFileToRender: "./awsCloudGrapher.png" 21 | 22 | asggrapherServerLabel: "Servers" 23 | -------------------------------------------------------------------------------- /handlers/main.yml: -------------------------------------------------------------------------------- 1 | --- 2 | # handlers file for aws-securitygroup-grapher -------------------------------------------------------------------------------- /meta/main.yml: -------------------------------------------------------------------------------- 1 | galaxy_info: 2 | author: your name 3 | description: your description 4 | company: your company (optional) 5 | 6 | # If the issue tracker for your role is not on github, uncomment the 7 | # next line and provide a value 8 | # issue_tracker_url: http://example.com/issue/tracker 9 | 10 | # Some suggested licenses: 11 | # - BSD (default) 12 | # - MIT 13 | # - GPLv2 14 | # - GPLv3 15 | # - Apache 16 | # - CC-BY 17 | license: license (GPLv2, CC-BY, etc) 18 | 19 | min_ansible_version: 1.2 20 | 21 | # If this a Container Enabled role, provide the minimum Ansible Container version. 22 | # min_ansible_container_version: 23 | 24 | # Optionally specify the branch Galaxy will use when accessing the GitHub 25 | # repo for this role. During role install, if no tags are available, 26 | # Galaxy will use this branch. During import Galaxy will access files on 27 | # this branch. If Travis integration is configured, only notifications for this 28 | # branch will be accepted. Otherwise, in all cases, the repo's default branch 29 | # (usually master) will be used. 30 | #github_branch: 31 | 32 | # 33 | # platforms is a list of platforms, and each platform has a name and a list of versions. 34 | # 35 | # platforms: 36 | # - name: Fedora 37 | # versions: 38 | # - all 39 | # - 25 40 | # - name: SomePlatform 41 | # versions: 42 | # - all 43 | # - 1.0 44 | # - 7 45 | # - 99.99 46 | 47 | galaxy_tags: [] 48 | # List tags for your role here, one per line. A tag is a keyword that describes 49 | # and categorizes the role. Users find roles by searching for tags. Be sure to 50 | # remove the '[]' above, if you add tags to this list. 51 | # 52 | # NOTE: A tag is limited to a single word comprised of alphanumeric characters. 53 | # Maximum 20 tags per role. 54 | 55 | dependencies: [] 56 | # List your role dependencies here, one per line. Be sure to remove the '[]' above, 57 | # if you add dependencies to this list. -------------------------------------------------------------------------------- /tasks/main.yml: -------------------------------------------------------------------------------- 1 | --- 2 | # tasks file for aws-securitygroup-grapher 3 | 4 | # 1 - get instances information 5 | # 2 - get security group and rules information 6 | 7 | - name: verify needed variables 8 | assert: 9 | that: "{{ item }} is defined" 10 | msg: "{{ item }} need to be defined and must not be empty" 11 | with_items: 12 | - asggrapherAwsRegion 13 | - asggrapherAwsVPC 14 | 15 | - name: verify if dot is installed 16 | shell: "dot -V" 17 | ignore_errors: true 18 | register: asggraphercmd_out 19 | 20 | - name: alert if dot is not installed 21 | assert: 22 | that: asggraphercmd_out.rc == 0 23 | msg: "dot (from graphviz) has to be installed to use this role" 24 | 25 | - name: Get VPC information 26 | ec2_vpc_net_facts: 27 | region: "{{ asggrapherAwsRegion }}" 28 | filters: 29 | "tag:Name": "{{ asggrapherAwsVPC }}" 30 | register: return_vpcs 31 | 32 | - name: get instances facts 33 | ec2_instance_facts: 34 | region: "{{ asggrapherAwsRegion }}" 35 | filters: 36 | vpc-id: "{{ return_vpcs.vpcs[0].vpc_id }}" 37 | register: return_instances_fact 38 | 39 | - name: Get security groups and rules 40 | ec2_group_facts: 41 | region: "{{ asggrapherAwsRegion }}" 42 | filters: 43 | vpc-id: "{{ return_vpcs.vpcs[0].vpc_id }}" 44 | register: return_sg_fact 45 | 46 | - name: Export sg graph 47 | template: 48 | src: aws-fullsg-instances.dot.j2 49 | dest: "{{ asggrapherDotFileToRender }}" 50 | 51 | - name: Render graph 52 | shell: "dot -Tpng -o{{ asggrapherFileToRender}} {{ asggrapherDotFileToRender }}" 53 | -------------------------------------------------------------------------------- /templates/aws-fullsg-instances.dot.j2: -------------------------------------------------------------------------------- 1 | digraph G { 2 | graph [fontname = "helvetica"]; 3 | node [fontname = "helvetica"]; 4 | edge [fontname = "helvetica"]; 5 | rankdir={{ asggrapherRankdir }}; 6 | 7 | {% if asggrapherShowInstances %} 8 | {% for sg in return_sg_fact.security_groups %} 9 | {% if sg.group_name != "default" or (sg.group_name == "default" and asggrapherShowDefault) %} 10 | "{{ sg.group_name }}" 11 | [ 12 | shape = record 13 | label = < 14 | 15 | 16 | {% for MyServer in return_instances_fact.instances %} 17 | {% if MyServer.security_groups | selectattr('group_name','equalto', sg.group_name) | list | first is defined %} 18 | 19 | {% endif %} 20 | {% endfor %} 21 |
{{ sg.group_name }}
{{ asggrapherServerLabel }}
{{ MyServer.tags.Name }}
> 22 | ] 23 | {% endif %} 24 | {% endfor %} 25 | {% endif %} 26 | 27 | {% for sg in return_sg_fact.security_groups %} 28 | {% if sg.group_name != "default" or (sg.group_name == "default" and asggrapherShowDefault) %} 29 | {% for r in sg.ip_permissions %} 30 | {% if r.ip_protocol != "-1" %} 31 | {% set MyProtocol = r.ip_protocol %} 32 | {% else %} 33 | {% set MyProtocol = "any" %} 34 | {% endif %} 35 | {% if r.to_port is defined %} 36 | {% if r.to_port != -1 %} 37 | {% if r.to_port != r.from_port %} 38 | {% set MyPortRange = r.to_port|string + "-" + r.from_port|string %} 39 | {% else %} 40 | {% set MyPortRange = r.to_port %} 41 | {% endif %} 42 | {% else %} 43 | {% set MyPortRange = "any" %} 44 | {% endif %} 45 | {% else %} 46 | {% set MyPortRange = "any" %} 47 | {% endif %} 48 | {% for ip_range in r.ip_ranges %} 49 | "{{ ip_range['cidr_ip'] }}" -> "{{ sg.group_name }}" [arrowhead=normal,color=blue,label="IN: {{ MyProtocol }} {{ MyPortRange }}"]; 50 | {% endfor %} 51 | {% for user_id_group_pair in r.user_id_group_pairs %} 52 | {% set remotegroup_name = return_sg_fact.security_groups | selectattr('group_id', 'equalto', user_id_group_pair['group_id']) | list | map(attribute='group_name') | first %} 53 | "{{ remotegroup_name }}" -> "{{ sg.group_name }}" [arrowhead=normal,color=blue,label="IN: {{ MyProtocol }} {{ MyPortRange }}"]; 54 | {% endfor %} 55 | {% endfor %} 56 | {% for r in sg.ip_permissions_egress %} 57 | {% if r.ip_protocol != "-1" %} 58 | {% set MyProtocol = r.ip_protocol %} 59 | {% else %} 60 | {% set MyProtocol = "any" %} 61 | {% endif %} 62 | {% if r.to_port is defined %} 63 | {% if r.to_port != -1 %} 64 | {% if r.to_port != r.from_port %} 65 | {% set MyPortRange = r.to_port|string + "-" + r.from_port|string %} 66 | {% else %} 67 | {% set MyPortRange = r.to_port %} 68 | {% endif %} 69 | {% else %} 70 | {% set MyPortRange = "any" %} 71 | {% endif %} 72 | {% else %} 73 | {% set MyPortRange = "any" %} 74 | {% endif %} 75 | {% for ip_range in r.ip_ranges %} 76 | "{{ ip_range['cidr_ip'] }}" -> "{{ sg.group_name }}" [arrowhead=inv,color=red,label="OUT: {{ MyProtocol }} {{ MyPortRange }}"]; 77 | {% endfor %} 78 | {% for user_id_group_pair in r.user_id_group_pairs %} 79 | {% set remotegroup_name = return_sg_fact.security_groups | selectattr('group_id', 'equalto', user_id_group_pair['group_id']) | list | map(attribute='group_name') | first %} 80 | "{{ remotegroup_name }}" -> "{{ sg.group_name }}" [arrowhead=inv,color=red,label="OUT: {{ MyProtocol }} {{ MyPortRange }}"]; 81 | {% endfor %} 82 | {% endfor %} 83 | {% endif %} 84 | {% endfor %} 85 | } 86 | -------------------------------------------------------------------------------- /tests/inventory: -------------------------------------------------------------------------------- 1 | localhost 2 | 3 | -------------------------------------------------------------------------------- /tests/test.yml: -------------------------------------------------------------------------------- 1 | --- 2 | - hosts: localhost 3 | remote_user: root 4 | roles: 5 | - aws-securitygroup-grapher -------------------------------------------------------------------------------- /vars/main.yml: -------------------------------------------------------------------------------- 1 | --- 2 | # vars file for aws-securitygroup-grapher --------------------------------------------------------------------------------