Learning history and files of Terraform for Beginners using GCP - Google Cloud (Hands-on) from Udemy

• https://www.udemy.com/course/terraform-for-beginners-using-google-cloud/
• https://github.com/ankit25587/course-material/tree/main/05-terraform-for-beginners-using-google-cloud

• Below is just work note of my learning ;)

1. scope
2. author
3. initialize
4. plan
5. apply

• VSCode extension
  • install it
• Local provider

  https://registry.terraform.io/providers/hashicorp/local/2.2.3

• File: first-tf-script

• Doc: https://registry.terraform.io/providers/hashicorp/local/latest/docs/resources/file

• Multiple resource in one main.tf
• File: multiple-resources

• Doc: https://registry.terraform.io/providers/hashicorp/random/latest/docs
• File: random-provider

• to use variable instead of hardcorded value
• File: variables

• File: types_of_variables

string – “cat”
number – 234, 6.5
bool - true/false
list – sequence of value
    list(string) =>[“red”, “green”, “blue”]
Tuple – group non homogeneous data type
    tuple([string, number, bool]) => [“dog”, 23, true]
map – like key value : Dictionary
    {name = “Ankit", age = 32}
set – only unique values
object – complex data type

• There are 4 ways to use variable as below

variable filename {
    type = string
    default = "sample.txt"
}
var.filename

---
variable filename {}    Terraform apply will ask

---
terraform apply -var "filename=sample.txt"

---
export TF_VAR_filename=sample.txt"

• The order of loading variable. 1 is higher priority = load first

1. export TF_VAR_filename=sample.txt“
2. terraform.tfvars file
3. variable.auto.tfvars file
4. terraform apply -var "filename=sample.txt”

• File: multiple-providers

• File: Implicit dependency
• File: Explicit dependency
• Reference:
  • Understanding Terraform's depends_on

• File: Output Block

• File: Lifecycle Rules
• lifecycle – resource attributes
• create_before_destroy - Create the resource first and then destroy older
• prevent_destroy - Prevents destroy of a resource
• ignore_changes - Ignore Changes to Resource – Specific tag or all

• File: Provisioner Version
• Doc: https://registry.terraform.io/providers/hashicorp/random/latest/docs
  • to check current latest version

• File: Data Source

• Service Account
  • https://console.cloud.google.com/iam-admin/serviceaccounts
  • created new service account

    terraform-gcp

• GCP provider Doc: https://registry.terraform.io/providers/hashicorp/google/latest/docs
• File: Google Provider

• Google Provider base configuration
  • projectid, zone, region
• Multiple way to authernticate with GCP
  • username/password - gcloud auth application - default login
  • Cloud Shell(lecture 26)
  • Service Account - Keys: preferred in production(lecture 27)
• Doc: google_storage_bucket
• File-26:
• File-27:

• Doc: https://cloud.google.com/storage
• Doc: https://registry.terraform.io/providers/hashicorp/google/latest/docs/resources/storage_bucket
• File-30-32:

• 3 Types of VPC
  • Default VPC
  • Auto Mode
  • Custom Mode
• File-34-36:

• File-38-42:
• Doc:
  • google_compute_instance:
  • google_compute_disk:
  • google_compute_attached_disk:

• Container Registory, Google Samples
• File-45-47

• File-50-53
• Doc:
  • google_cloudfunctions_function:
  • google_cloudfunctions2_function:

• File-54
• Doc:
  • google_bigquery_dataset:
  • google_bigquery_table:

• File-56
• Doc:
  • google_pubsub_topic:
  • google_pubsub_subscription:

• File-57
• Doc:
  • google_spanner_instance:
  • google_spanner_database:

• File-59
• Doc:
  • google_sql_database_instance:
  • google_sql_database:

• a fully managed, wide-column NoSQL database
• File-61-62
• Doc:
  • google_bigtable_instance
  • google_bigtable_table

• in-memory data store service for Redis and Memcached

• File-61-62

• Doc:

  • google_redis_instance(resources):
  • google_redis_instance(data resources):
  • google_memcache_instance:

• tf is installed on tfenv

% tfenv list
* 1.3.0 (set by /usr/local/Cellar/tfenv/3.0.0/version)
  1.0.10
% terraform --version
Terraform v1.3.0