Step-01: Introduction
- The
terraform graph
command is used to generate a visual representation of either a configuration or execution plan
- The output is in the DOT format, which can be used by GraphViz to generate charts.
# Terraform Initialize
terraform init
# Terraform Graph
terraform graph > dot1
Observation:
This command will output DOT format text and store in file dot1
Step-03: Online Graphviz Viewers
- Graphviz-Online
- Edotor-Online
- Copy and paste the text from
dot1
file generated in step-02 in these online Graphviz Viewers
- Review the output
Step-04: Clean-Up
# Delete .terraform files
rm -rf .terraform*
Step-05: Other Options - Offline Graphviz Installer
Step-05-01: Pre-requisite notes
- Graphviz is unstable on MacOS
- Graphviz needs xcode to be installed on MacOS which consumes huge disk space.
- With that said, we are going to do this demo on Windows Machine
- We are going to use Windows 2019 EC2 instance created on AWS for the same.
Step-05-02: Create Windows 2019 VM ready
- Create Windows 2019 VM on AWS Cloud
- Disable Browser security settings in Server-Manager
- Install Google Chrome
- Download & Install Terraform CLI
- Set
Path
for Terraform CLI
- Copy
terraform-manifests
folder from section-14: Terraform Graph
of the course to Windows VM
Step-05-03: Install Graphviz on Windows VM
# Switch Directory
cd c:\graphviz-demo\terraform-manifests
# Terraform Initialize
terraform init
# Terraform Graph
terraform graph > dot1
Observation:
This command will output DOT format text
# Terraform Graph in Image format
terraform graph | dot -Tsvg > graph.svg
# Verify
open graph.svg in browser
References