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gcpviz - Cloud Asset Inventory visualization

Example

gcpviz is a visualization tool that takes input from Cloud Asset Inventory, creates relationships between assets and outputs a format compatible with graphviz. You can use it to visualize all resources in the export (examples are provided for the basic use cases).

Requirements

The tool requires the following:

  • Golang 1.14 (or later)
  • Graphviz

Building a Docker image

Easiest way to get started is to build a container from the tool, that includes all the necessary dependencies. You can build a Docker image using the supplied Dockerfile:

docker build -t gcr.io/YOUR-PROJECT/gcpviz .
docker push gcr.io/YOUR-PROJECT/gcpviz

Running Docker image locally and generate a graph

mkdir cai
cp resource_inventory.json cai/
docker run --rm -v $PWD/cai:/gcpviz/cai gcr.io/YOUR-PROJECT/gcpviz gcpviz.sh network --query-file queries/data.js

You'll then find network.gv, network.svg and network.png under the cai/ directory.

Usage

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  -alsologtostderr
        log to standard error as well as files
  -cpuprofile file
        write cpu profile to file
  -graph-file string
        location of Graph & Asset database file (default "graph.db")
  -graph-parameter value
        override graph style parameters using SJSON (ie. "options.overlap=vpsc")
  -graph-title string
        Title for the graph
  -labels-file string
        location of node/edge labels file (default "labels.yaml")
  -log_backtrace_at value
        when logging hits line file:N, emit a stack trace
  -log_dir string
        If non-empty, write log files in this directory
  -logtostderr
        log to standard error instead of files
  -memprofile file
        write memory profile to file
  -mode string
        mode of operation (generate, visualize)
  -no-banner
        disables banner
  -no-color
        disables color in output
  -query-file string
        location of Gizmo query file (default "query.js")
  -query-parameter value
        additional parameter to pass to Gizmo query (param=value)
  -relations-file string
        location of relations file (default "relations.yaml")
  -resource-inventory-file string
        location of resource inventory file from Cloud Asset Inventory (default "resource_inventory.json")
  -stderrthreshold value
        logs at or above this threshold go to stderr
  -style-file string
        location of graph style file (default "style.yaml")
  -v value
        log level for V logs
  -vmodule value
        comma-separated list of pattern=N settings for file-filtered logging

Exporting Cloud Asset Inventory and creating graph

You'll need a Cloud Storage bucket to store the export and roles/cloudasset.viewer permission (on organisational level).

Then run the command:

export ORGANIZATION_ID=<YOUR-ORGANIZATION-ID>
export CAI_BUCKET_NAME=<YOUR-BUCKET>
gcloud asset export \
   --content-type resource \
   --organization $ORGANIZATION_ID  \
   --output-path "gs://$CAI_BUCKET_NAME/resource_inventory.json"

Copy the resource_inventory.json to your machine and generate the graph file:

gcpviz -resource-inventory-file resource_inventory.json -mode generate

Creating graphs

The tool has many options - feel free to play around with them until you get the look you want! A number of sample queries into the graph tree has been provided:

To create a graph, simply run (remember, you'll need to generate the graph file first):

gcpviz -query-file queries/gke.js -mode visualize > gke.gv
dot -Kneato -Tsvg -Gdpi=60 gke.gv -o gke.svg

Sample graphs

Basic networking components

Basic network

GKE clusters with workloads

GKE

Instances

Instances

Storage buckets, BigQuery datasets and Cloud SQL

Data

Customizing your graph

To customize the entities that are displayed in graph, you can create new queries or adapt the examples in the queries/ directory. The query language is based on Gizmo. The graph has two types of predicates: child for parent-child relationships and uses for when a resources is attached or consumes another resource. Subgraph types are the Cloud Asset Inventory asset_types.

You can customize your graph styling by editing the following files:

  • relations.yaml: contains jsonpath mappings that build uses relationships between objects.
  • style.yaml: contains graph, node and edge styles (you can override these styles using -graph-parameter or just make a new style file)
  • labels.yaml: contains formatting for node labels and clickable links.

Cool tips

  • You can visualize multiple organizations by combining resource inventories (and modifying the queries a little bit).
  • The queries have some filtering in place (empty projects, etc.), you can remove it.
  • You can also start from any other node than organization root by changing the query root (see one-project-example.js and pass the project via -query-parameters "project=//cloudresourcemanager.googleapis.com/projects/PROJECT_ID")
  • A Gitlab sample pipeline has been included.
  • A Cloud Asset Inventory export can contain some sensitive information. A simple tool, called redactor.py, has been included to remove some fields from the export.
  • A few asset types have clickable links in a SVG! Try it out.