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google_backend_bucket
google_external_address
google_forwarding_rule
google_function
google_health_check
google_storage
google_urlmap
iam_object_viewer
static_website
target_http_proxy
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README.md
index.js

README.md

Terraform Automation Demo using Google Cloud Provider

The purpose of this repository is to show case terraform automation for Google Cloud. This demo will provision the following cloud resources associated to corresponding terraform configurations:

GCP Resource Terraform Resource Link to TerraHub Config
Cloud Function google_cloudfunctions_function google_function/.terrahub.yml#L24
Cloud Storage google_storage_bucket google_storage/.terrahub.yml#L7
Static Website google_storage_bucket_object static_website/.terrahub.yml#L8
IAM Policy google_storage_bucket_iam_member iam_object_viewer/.terrahub.yml#L9

Follow below instructions to try this out in your own Google Cloud account.

Login to Google Cloud

Run the following command in terminal:

gcloud auth login

NOTE: If you don't have Google Cloud CLI, check out this installation guide

Setup Environment Variables (Will Be Used Later)

Manual Setup (set values in double quotes and run the following commands in terminal):

export GOOGLE_CLOUD_PROJECT=""            ## e.g. terrahub-123456
export GOOGLE_APPLICATION_CREDENTIALS=""  ## e.g. ${HOME}/.config/gcloud/terraform.json
export BILLING_ID=""      ## e.g. 123456-ABCDEF-ZYXWVU
export PROJECT_NAME=""    ## e.g. TerraHub
export IAM_NAME=""        ## e.g. terraform
export IAM_DESC=""        ## e.g. terraform service account
export STORAGE_BUCKET=""  ## e.g. terrahub_123456

Setup BILLING_ID Programmatically

Automated Setup (run the following command in terminal):

export BILLING_ID="$(gcloud beta billing accounts list --format=json | jq -r '.[0].name[16:]')"

NOTE: If you don't have JQ CLI, check out this installation guide

Create Google Cloud Project & Billing

Run the following command in terminal:

gcloud projects create ${GOOGLE_CLOUD_PROJECT} \
  --name="${PROJECT_NAME}" \
  --set-as-default

Your output should be similar to the one below:

Create in progress for [https://cloudresourcemanager.googleapis.com/v1/projects/***].
Waiting for [operations/***] to finish ... done.

Next, run the following command in terminal:

gcloud beta billing projects link ${GOOGLE_CLOUD_PROJECT} \
  --billing-account="${BILLING_ID}"

Your output should be similar to the one below:

billingAccountName: billingAccounts/***
billingEnabled: true
name: projects/***
projectId: ***

Finally, run the following commands in terminal:

gcloud services enable cloudresourcemanager.googleapis.com
gcloud services enable cloudbilling.googleapis.com
gcloud services enable iam.googleapis.com
gcloud services enable cloudfunctions.googleapis.com
gcloud services enable storage-component.googleapis.com
gcloud services enable compute.googleapis.com

Your output should be similar to the one below:

Operation "operations/***" finished successfully.

Create Google Cloud IAM Service Account & Key

Run the following command in terminal:

gcloud iam service-accounts create ${IAM_NAME} \
  --display-name="${IAM_DESC}"

Your output should be similar to the one below:

Created service account [***].

After that, run the following command in terminal:

gcloud iam service-accounts keys create ${GOOGLE_APPLICATION_CREDENTIALS} \
  --iam-account="${IAM_NAME}@${GOOGLE_CLOUD_PROJECT}.iam.gserviceaccount.com"

Your output should be similar to the one below:

Created key [***] of type [json] as [***] for [***@***.iam.gserviceaccount.com]

Add IAM Policy Binding to Google Cloud Project

Run the following command in terminal:

gcloud projects add-iam-policy-binding ${GOOGLE_CLOUD_PROJECT} \
  --member="serviceAccount:${IAM_NAME}@${GOOGLE_CLOUD_PROJECT}.iam.gserviceaccount.com" \
  --role="roles/editor"

Your output should be similar to the one below:

Updated IAM policy for project [***].
bindings:
...
version: 1

Terraform Automation and Orchestration Tool

The next couple of paragraphs are show casing the process of creating terraform configurations using TerraHub CLI. We have opted to use YML format instead of HCL because it's easier and faster to customize and automate terraform runs (see terrahub component command).

Run the following commands in terminal:

terrahub --help | head -3

Your output should be similar to the one below:

Usage: terrahub [command] [options]

terrahub@0.0.1 (built: 2018-04-14T19:15:39.787Z)

NOTE: If you don't have TerraHub CLI, check out this installation guide

Build Terraform Configurations from Scratch

Run the following commands in terminal:

mkdir demo-terraform-automation-gcp
cd demo-terraform-automation-gcp
terrahub project -n demo-terraform-automation-gcp

Your output should be similar to the one below:

✅ Project successfully initialized

NOTE: If you want to jump directly to terraform automation part of the demo, instead of creating demo-terraform-automation-gcp from scratch, clone current repository, follow the instructions for Update TerraHub's Project Config, continue to Copy Source Code for Google Function and Static Website and then jump down to Visualize TerraHub Components. This way you will fast forward through terrahub components creation and customization, and switch directly to automation part.

Update TerraHub's Project Config

Run the following commands in terminal:

terrahub configure -c terraform.version=0.11.11
terrahub configure -c template.provider.google={}
terrahub configure -c template.locals.google_project_id="${GOOGLE_CLOUD_PROJECT}"
terrahub configure -c template.locals.google_billing_account="${BILLING_ID}"

Your output should be similar to the one below:

✅ Done

Copy Source Code for Google Function and Static Website

The source code of Google Function is stored in index.js:

echo 'exports.helloGET = (req, res) => { res.send("Hello World!\n"); };' > index.js

The source code of Static Website is cloned from another public repository:

git clone https://github.com/TerraHubCorp/www.git \
&& rm -rf ./www/.terrahub*

NOTE: We are removing .terrahub folder (as shown above) because already included terraform configuration is not relevant for this demo

Create TerraHub Components from Templates

Run the following command in terminal:

terrahub component -t google_storage_bucket -n google_storage \
&& terrahub component -t google_cloudfunctions_function -n google_function -o ../google_storage \
&& terrahub component -t google_storage_bucket -n static_website \
&& terrahub component -t google_storage_bucket_iam_member -n iam_object_viewer -o ../static_website \
&& terrahub component -t google_compute_http_health_check -n google_health_check \
&& terrahub component -t google_compute_backend_bucket -n google_backend_bucket -o ../static_website \
&& terrahub component -t google_compute_url_map -n google_urlmap -o ../google_backend_bucket \
&& terrahub component -t google_compute_global_address -n google_external_address \
&& terrahub component -t google_compute_target_http_proxy -n target_http_proxy -o  ../google_urlmap \
&& terrahub component -t google_compute_global_forwarding_rule -n google_forwarding_rule -o ../target_http_proxy,../google_external_address

Your output should be similar to the one below:

✅ Done

Customize TerraHub Component for Storage Bucket

Run the following commands in terminal:

terrahub configure -i google_storage -c component.template.terraform.backend.local.path='/tmp/.terrahub/local_backend/google_storage/terraform.tfstate'
terrahub configure -i google_storage -c component.template.resource.google_storage_bucket.google_storage.name="${STORAGE_BUCKET}"
terrahub configure -i google_storage -c component.template.resource.google_storage_bucket.google_storage.location='US'
terrahub configure -i google_storage -c component.template.resource.google_storage_bucket.google_storage.force_destroy='true'
terrahub configure -i google_storage -c component.template.resource.google_storage_bucket.google_storage.project='${local.google_project_id}'
terrahub configure -i google_storage -c component.template.variable -D -y

Your output should be similar to the one below:

✅ Done

Customize TerraHub Component for Google Cloud Function

Run the following commands in terminal:

terrahub configure -i google_function -c component.template.terraform.backend.local.path='/tmp/.terrahub/local_backend/google_function/terraform.tfstate'
terrahub configure -i google_function -c component.template.data.terraform_remote_state.storage.backend='local'
terrahub configure -i google_function -c component.template.data.terraform_remote_state.storage.config.path='/tmp/.terrahub/local_backend/google_storage/terraform.tfstate'
terrahub configure -i google_function -c component.template.resource.google_storage_bucket_object.google_storage_object.name='demo.zip'
terrahub configure -i google_function -c component.template.resource.google_storage_bucket_object.google_storage_object.bucket='${data.terraform_remote_state.storage.thub_id}'
terrahub configure -i google_function -c component.template.resource.google_storage_bucket_object.google_storage_object.source='./demo.zip'
terrahub configure -i google_function -c component.template.resource.google_cloudfunctions_function.google_function.depends_on[0]='google_storage_bucket_object.google_storage_object'
terrahub configure -i google_function -c component.template.resource.google_cloudfunctions_function.google_function.project='${local.google_project_id}'
terrahub configure -i google_function -c component.template.resource.google_cloudfunctions_function.google_function.name='demofunction${local.project["code"]}'
terrahub configure -i google_function -c component.template.resource.google_cloudfunctions_function.google_function.region='us-central1'
terrahub configure -i google_function -c component.template.resource.google_cloudfunctions_function.google_function.runtime='nodejs8'
terrahub configure -i google_function -c component.template.resource.google_cloudfunctions_function.google_function.description='My demo function'
terrahub configure -i google_function -c component.template.resource.google_cloudfunctions_function.google_function.available_memory_mb=128
terrahub configure -i google_function -c component.template.resource.google_cloudfunctions_function.google_function.source_archive_bucket='${data.terraform_remote_state.storage.thub_id}'
terrahub configure -i google_function -c component.template.resource.google_cloudfunctions_function.google_function.source_archive_object='${google_storage_bucket_object.google_storage_object.name}'
terrahub configure -i google_function -c component.template.resource.google_cloudfunctions_function.google_function.trigger_http=true
terrahub configure -i google_function -c component.template.resource.google_cloudfunctions_function.google_function.timeout=60
terrahub configure -i google_function -c component.template.resource.google_cloudfunctions_function.google_function.entry_point='helloGET'
terrahub configure -i google_function -c component.template.variable -D -y
terrahub configure -i google_function -c component.template.output -D -y
terrahub configure -i google_function -c component.template.output.id.value='${google_cloudfunctions_function.google_function.id}'
terrahub configure -i google_function -c component.template.output.trigger_url.value='${google_cloudfunctions_function.google_function.https_trigger_url}'
terrahub configure -i google_function -c build.env.variables.THUB_FUNCTION_ZIP='demo.zip'
terrahub configure -i google_function -c build.env.variables.THUB_FUNCTION_TXT='demo.txt'
terrahub configure -i google_function -c build.env.variables.COMPONENT_NAME='google_function'
terrahub configure -i google_function -c build.env.variables.OBJECT_NAME='google_storage_object'
terrahub configure -i google_function -c build.env.variables.THUB_BUILD_PATH='..'
terrahub configure -i google_function -c build.env.variables.THUB_BUILD_OK='false'
terrahub configure -i google_function -c build.env.variables.THUB_BUCKET_PATH="gs://${STORAGE_BUCKET}"
terrahub configure -i google_function -c build.env.variables.THUB_BUCKET_KEY='deploy/google_function'
terrahub configure -i google_function -c build.phases.pre_build.commands[0]='echo "BUILD: Running pre_build step"'
terrahub configure -i google_function -c build.phases.pre_build.commands[1]='./scripts/download.sh $THUB_FUNCTION_TXT $THUB_BUCKET_PATH/$THUB_BUCKET_KEY/$THUB_FUNCTION_TXT'
terrahub configure -i google_function -c build.phases.pre_build.commands[2]='./scripts/download.sh $THUB_FUNCTION_ZIP $THUB_BUCKET_PATH/$THUB_BUCKET_KEY/$THUB_FUNCTION_ZIP'
terrahub configure -i google_function -c build.phases.pre_build.commands[3]='./scripts/compare.sh $THUB_FUNCTION_TXT $THUB_BUILD_PATH/*.js'
terrahub configure -i google_function -c build.phases.pre_build.finally[0]='echo "BUILD: pre_build step successful"'
terrahub configure -i google_function -c build.phases.build.commands[0]='echo "BUILD: Running build step"'
terrahub configure -i google_function -c build.phases.build.commands[1]='./scripts/build.sh $COMPONENT_NAME $OBJECT_NAME $THUB_BUCKET_KEY/'
terrahub configure -i google_function -c build.phases.build.finally[0]='echo "BUILD: build step successful"'
terrahub configure -i google_function -c build.phases.post_build.commands[0]='echo "BUILD: Running post_build step"'
terrahub configure -i google_function -c build.phases.post_build.commands[1]='./scripts/shasum.sh $THUB_FUNCTION_TXT'
terrahub configure -i google_function -c build.phases.post_build.commands[2]='./scripts/zip.sh $THUB_FUNCTION_ZIP $THUB_BUILD_PATH/*.js'
terrahub configure -i google_function -c build.phases.post_build.commands[3]='./scripts/upload.sh $THUB_FUNCTION_TXT $THUB_BUCKET_PATH/$THUB_BUCKET_KEY/$THUB_FUNCTION_TXT'
terrahub configure -i google_function -c build.phases.post_build.commands[4]='./scripts/upload.sh $THUB_FUNCTION_ZIP $THUB_BUCKET_PATH/$THUB_BUCKET_KEY/$THUB_FUNCTION_ZIP'
terrahub configure -i google_function -c build.phases.post_build.commands[5]='rm -f .terrahub_build.env $THUB_FUNCTION_TXT'
terrahub configure -i google_function -c build.phases.post_build.finally[0]='echo "BUILD: post_build step successful"'

Your output should be similar to the one below:

✅ Done

Customize TerraHub Component for Google Cloud Static WebSite

Run the following commands in terminal:

terrahub configure -i static_website -c component.template.terraform.backend.local.path='/tmp/.terrahub/local_backend/static_website/terraform.tfstate'
terrahub configure -i static_website -c component.template.resource.google_storage_bucket.static_website.name="${STORAGE_BUCKET}_website"
terrahub configure -i static_website -c component.template.resource.google_storage_bucket.static_website.location='US'
terrahub configure -i static_website -c component.template.resource.google_storage_bucket.static_website.force_destroy='true'
terrahub configure -i static_website -c component.template.resource.google_storage_bucket.static_website.project='${local.google_project_id}'
terrahub configure -i static_website -c component.template.resource.google_storage_bucket.static_website.website.main_page_suffix='index.html'
terrahub configure -i static_website -c component.template.resource.google_storage_bucket.static_website.website.not_found_page='/404.html'
terrahub configure -i static_website -c component.template.variable -D -y
terrahub configure -i static_website -c build.env.variables.THUB_ENV='dev'
terrahub configure -i static_website -c build.env.variables.THUB_INDEX_FILE='www.txt'
terrahub configure -i static_website -c build.env.variables.THUB_GS_PATH="gs://${STORAGE_BUCKET}_website"
terrahub configure -i static_website -c build.env.variables.THUB_ROBOTS='../www/robots.dev.txt'
terrahub configure -i static_website -c build.env.variables.THUB_BUILD_PATH='../www/build'
terrahub configure -i static_website -c build.env.variables.THUB_SOURCE_PATH='../www/assets ../www/static/fonts ../www/static/img ../www/views'
terrahub configure -i static_website -c build.env.variables.THUB_BUILD_OK='false'
terrahub configure -i static_website -c build.env.variables.THUB_MAX_AGE='600'
terrahub configure -i static_website -c build.phases.pre_build.commands[0]='echo "BUILD: Running pre_build step"'
terrahub configure -i static_website -c build.phases.pre_build.commands[1]='./scripts/download.sh $THUB_INDEX_FILE $THUB_GS_PATH/$THUB_INDEX_FILE'
terrahub configure -i static_website -c build.phases.pre_build.commands[2]='./scripts/compare.sh $THUB_INDEX_FILE $THUB_SOURCE_PATH'
terrahub configure -i static_website -c build.phases.pre_build.finally[0]='echo "BUILD: pre_build step successful"'
terrahub configure -i static_website -c build.phases.build.commands[0]='echo "BUILD: Running build step"'
terrahub configure -i static_website -c build.phases.build.commands[1]='../www/bin/compile.sh'
terrahub configure -i static_website -c build.phases.build.finally[0]='echo "BUILD: build step successful"'
terrahub configure -i static_website -c build.phases.post_build.commands[0]='echo "BUILD: Running post_build step"'
terrahub configure -i static_website -c build.phases.post_build.commands[1]='./scripts/shasum.sh $THUB_BUILD_PATH/$THUB_INDEX_FILE'
terrahub configure -i static_website -c build.phases.post_build.commands[2]='./scripts/upload.sh $THUB_BUILD_PATH $THUB_GS_PATH --cache-control max-age=$THUB_MAX_AGE'
terrahub configure -i static_website -c build.phases.post_build.commands[3]='rm -f .terrahub_build.env $THUB_INDEX_FILE'
terrahub configure -i static_website -c build.phases.post_build.finally[0]='echo "BUILD: post_build step successful"'

Your output should be similar to the one below:

✅ Done

Customize TerraHub Component for IAM Member Object Viewer

Run the following commands in terminal:

terrahub configure -i iam_object_viewer -c component.template.terraform.backend.local.path='/tmp/.terrahub/local_backend/iam_object_viewer/terraform.tfstate'
terrahub configure -i iam_object_viewer -c component.template.data.terraform_remote_state.storage.backend='local'
terrahub configure -i iam_object_viewer -c component.template.data.terraform_remote_state.storage.config.path='/tmp/.terrahub/local_backend/static_website/terraform.tfstate'
terrahub configure -i iam_object_viewer -c component.template.resource.google_storage_bucket_iam_member.iam_object_viewer.bucket="${STORAGE_BUCKET}_website"
terrahub configure -i iam_object_viewer -c component.template.resource.google_storage_bucket_iam_member.iam_object_viewer.role='roles/storage.objectViewer'
terrahub configure -i iam_object_viewer -c component.template.resource.google_storage_bucket_iam_member.iam_object_viewer.member='allUsers'
terrahub configure -i iam_object_viewer -c component.template.variable -D -y

Your output should be similar to the one below:

✅ Done

Customize TerraHub Component for Backend Bucket

Run the following commands in terminal:

terrahub configure -i google_backend_bucket -c component.template.terraform.backend.local.path='/tmp/.terrahub/local_backend/google_backend_bucket/terraform.tfstate'
terrahub configure -i google_backend_bucket -c component.template.data.terraform_remote_state.storage.backend='local'
terrahub configure -i google_backend_bucket -c component.template.data.terraform_remote_state.storage.config.path='/tmp/.terrahub/local_backend/static_website/terraform.tfstate'
terrahub configure -i google_backend_bucket -c component.template.resource.google_compute_backend_bucket.google_backend_bucket.bucket_name='${data.terraform_remote_state.storage.thub_id}'
terrahub configure -i google_backend_bucket -c component.template.resource.google_compute_backend_bucket.google_backend_bucket.name='static-asset-backend-bucket'
terrahub configure -i google_backend_bucket -c component.template.resource.google_compute_backend_bucket.google_backend_bucket.project='${local.google_project_id}'
terrahub configure -i google_backend_bucket -c component.template.resource.google_compute_backend_bucket.google_backend_bucket.enable_cdn='true'
terrahub configure -i google_backend_bucket -c component.template.variable -D -y

Your output should be similar to the one below:

✅ Done

Customize TerraHub Component for Http Health Check

Run the following commands in terminal:

terrahub configure -i google_health_check -c component.template.terraform.backend.local.path='/tmp/.terrahub/local_backend/google_health_check/terraform.tfstate'
terrahub configure -i google_health_check -c component.template.resource.google_compute_http_health_check.google_health_check.request_path='/'
terrahub configure -i google_health_check -c component.template.resource.google_compute_http_health_check.google_health_check.project='${local.google_project_id}'
terrahub configure -i google_health_check -c component.template.resource.google_compute_http_health_check.google_health_check.name='health-check'
terrahub configure -i google_health_check -c component.template.resource.google_compute_http_health_check.google_health_check.check_interval_sec='1'
terrahub configure -i google_health_check -c component.template.resource.google_compute_http_health_check.google_health_check.timeout_sec='1'
terrahub configure -i google_health_check -c component.template.variable -D -y

Your output should be similar to the one below:

✅ Done

Customize TerraHub Component for Url Map

Run the following commands in terminal:

terrahub configure -i google_urlmap -c component.template.terraform.backend.local.path='/tmp/.terrahub/local_backend/google_urlmap/terraform.tfstate'
terrahub configure -i google_urlmap -c component.template.data.terraform_remote_state.backend_service.backend='local'
terrahub configure -i google_urlmap -c component.template.data.terraform_remote_state.backend_service.config.path='/tmp/.terrahub/local_backend/google_backend_bucket/terraform.tfstate'
terrahub configure -i google_urlmap -c component.template.resource.google_compute_url_map.google_urlmap.name='demo-url-map'
terrahub configure -i google_urlmap -c component.template.resource.google_compute_url_map.google_urlmap.default_service='${data.terraform_remote_state.backend_service.self_link}'
terrahub configure -i google_urlmap -c component.template.resource.google_compute_url_map.google_urlmap.project='${local.google_project_id}'
terrahub configure -i google_urlmap -c component.template.resource.google_compute_url_map.google_urlmap.host_rule.hosts[0]='demo'
terrahub configure -i google_urlmap -c component.template.resource.google_compute_url_map.google_urlmap.host_rule.path_matcher='allpaths'
terrahub configure -i google_urlmap -c component.template.resource.google_compute_url_map.google_urlmap.path_matcher.name='allpaths'
terrahub configure -i google_urlmap -c component.template.resource.google_compute_url_map.google_urlmap.path_matcher.default_service='${data.terraform_remote_state.backend_service.self_link}'
terrahub configure -i google_urlmap -c component.template.resource.google_compute_url_map.google_urlmap.path_matcher.path_rule.paths[0]='/*'
terrahub configure -i google_urlmap -c component.template.resource.google_compute_url_map.google_urlmap.path_matcher.path_rule.service='${data.terraform_remote_state.backend_service.self_link}'
terrahub configure -i google_urlmap -c component.template.variable -D -y
terrahub configure -i google_urlmap -c component.template.output.self_link.value='${google_compute_url_map.google_urlmap.self_link}'
terrahub configure -i google_urlmap -c component.template.resource.google_compute_url_map.google_urlmap.hosts -D -y

Your output should be similar to the one below:

✅ Done

Customize TerraHub Component for Compute Global Address

Run the following commands in terminal:

terrahub configure -i google_external_address -c component.template.terraform.backend.local.path='/tmp/.terrahub/local_backend/google_external_address/terraform.tfstate'
terrahub configure -i google_external_address -c component.template.resource.google_compute_global_address.google_external_address.name='demo-external-address'
terrahub configure -i google_external_address -c component.template.resource.google_compute_global_address.google_external_address.project='${local.google_project_id}'
terrahub configure -i google_external_address -c component.template.variable -D -y
terrahub configure -i google_external_address -c component.template.output -D -y
terrahub configure -i google_external_address -c component.template.output.address.value='${google_compute_global_address.google_external_address.address}'

Your output should be similar to the one below:

✅ Done

Customize TerraHub Component for Target Http Proxy

Run the following commands in terminal:

terrahub configure -i target_http_proxy -c component.template.terraform.backend.local.path='/tmp/.terrahub/local_backend/target_http_proxy/terraform.tfstate'
terrahub configure -i target_http_proxy -c component.template.data.terraform_remote_state.google_urlmap.backend='local'
terrahub configure -i target_http_proxy -c component.template.data.terraform_remote_state.google_urlmap.config.path='/tmp/.terrahub/local_backend/google_urlmap/terraform.tfstate'
terrahub configure -i target_http_proxy -c component.template.resource.google_compute_target_http_proxy.target_http_proxy.name='demo-frontend'
terrahub configure -i target_http_proxy -c component.template.resource.google_compute_target_http_proxy.target_http_proxy.url_map='${data.terraform_remote_state.google_urlmap.self_link}'
terrahub configure -i target_http_proxy -c component.template.resource.google_compute_target_http_proxy.target_http_proxy.project='${local.google_project_id}'
terrahub configure -i target_http_proxy -c component.template.variable -D -y
terrahub configure -i target_http_proxy -c component.template.output -D -y
terrahub configure -i target_http_proxy -c component.template.output.self_link.value='${google_compute_target_http_proxy.target_http_proxy.self_link}'

Your output should be similar to the one below:

✅ Done

Customize TerraHub Component for Forwarding Rule

Run the following commands in terminal:

terrahub configure -i google_forwarding_rule -c component.template.terraform.backend.local.path='/tmp/.terrahub/local_backend/google_forwarding_rule/terraform.tfstate'
terrahub configure -i google_forwarding_rule -c component.template.data.terraform_remote_state.external_address.backend='local'
terrahub configure -i google_forwarding_rule -c component.template.data.terraform_remote_state.external_address.config.path='/tmp/.terrahub/local_backend/google_external_address/terraform.tfstate'
terrahub configure -i google_forwarding_rule -c component.template.data.terraform_remote_state.target_http_proxy.backend='local'
terrahub configure -i google_forwarding_rule -c component.template.data.terraform_remote_state.target_http_proxy.config.path='/tmp/.terrahub/local_backend/target_http_proxy/terraform.tfstate'
terrahub configure -i google_forwarding_rule -c component.template.resource.google_compute_global_forwarding_rule.google_forwarding_rule.name='demo-frontend'
terrahub configure -i google_forwarding_rule -c component.template.resource.google_compute_global_forwarding_rule.google_forwarding_rule.project='${local.google_project_id}'
terrahub configure -i google_forwarding_rule -c component.template.resource.google_compute_global_forwarding_rule.google_forwarding_rule.port_range='80'
terrahub configure -i google_forwarding_rule -c component.template.resource.google_compute_global_forwarding_rule.google_forwarding_rule.ip_address='${data.terraform_remote_state.external_address.address}'
terrahub configure -i google_forwarding_rule -c component.template.resource.google_compute_global_forwarding_rule.google_forwarding_rule.target='${data.terraform_remote_state.target_http_proxy.self_link}'
terrahub configure -i google_forwarding_rule -c component.template.variable -D -y
terrahub configure -i google_forwarding_rule -c component.template.output -D -y

Your output should be similar to the one below:

✅ Done

Visualize TerraHub Components

Run the following command in terminal:

terrahub graph

Your output should be similar to the one below:

Project: demo-terraform-automation-gcp
 ├─ google_external_address [path: ./google_external_address]
 ├─ google_health_check [path: ./google_health_check]
 ├─ google_storage [path: ./google_storage]
 │  └─ google_function [path: ./google_function]
 └─ static_website [path: ./static_website]
    ├─ google_backend_bucket [path: ./google_backend_bucket]
    │  └─ google_urlmap [path: ./google_urlmap]
    │     └─ target_http_proxy [path: ./target_http_proxy]
    │        └─ google_forwarding_rule [path: ./google_forwarding_rule]
    └─ iam_object_viewer [path: ./iam_object_viewer]

Run TerraHub Automation

Prepare Storage Resources

Run the following command in terminal:

terrahub run -y -a -i google_storage,static_website

Your output should be similar to the one below:

Run TerraHub Automation

Run the following command in terminal:

terrahub run -y -a -b

Your output should be similar to the one below:

NOTE: If you get an error saying ServiceException: 401 Anonymous caller does not have storage.objects.get access to [***], run gsutil config and setup default project id.

Test Deployed Cloud Resources

Check if backend was deployed successfully. Run the following command in terminal:

curl https://us-central1-terrahub-123456.cloudfunctions.net/demofunctionxxxxxxxx

Check if frontend was deployed successfully. Run the following command in terminal:

curl https://${STORAGE_BUCKET}_website.storage.googleapis.com/index.html
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