feat(packer): wire Packer-built AMI into ASG

[tanayjdev]

Wire the latest Packer-built AMI into the Terraform ASG and verify the instance refresh and ALB health.

[Copilot]

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[github-actions]

Terraform Plan Result

Acquiring state lock. This may take a few moments...
module.rds.random_password.db_password: Refreshing state... [id=none]
module.main_vpc.aws_vpc.this: Refreshing state... [id=vpc-016702f0ed6c85506]
aws_security_group.state_demo: Refreshing state... [id=sg-0fbc18b2768ba7191]
module.rds.aws_db_parameter_group.this: Refreshing state... [id=terraform-mastery-pg-params]
module.github_oidc.aws_iam_openid_connect_provider.github_actions: Refreshing state... [id=arn:aws:iam::464975960111:oidc-provider/token.actions.githubusercontent.com]
data.aws_iam_policy_document.ec2_assume_role: Reading...
data.aws_caller_identity.current_account: Reading...
module.rds.aws_secretsmanager_secret.rds_credentials: Refreshing state... [id=terraform-mastery-rds-credentials]
data.aws_ami.ubuntu: Reading...
module.rds.aws_sns_topic.rds_alerts: Refreshing state... [id=arn:aws:sns:ap-south-1:464975960111:terraform-mastery-rds-alerts]
module.main_vpc.aws_eip.nat[0]: Refreshing state... [id=eipalloc-03aff10d08bf89133]
data.aws_iam_policy_document.ec2_assume_role: Read complete after 0s [id=2851119427]
data.aws_vpc.default: Reading...
data.aws_region.current: Reading...
data.aws_region.current: Read complete after 0s [id=ap-south-1]
data.aws_ami.latest_packer_build: Reading...
data.aws_caller_identity.current_account: Read complete after 0s [id=464975960111]
module.asg.aws_iam_role.app_instance: Refreshing state... [id=terraform-mastery-app-instance-role]
data.aws_availability_zones.available: Reading...
data.aws_caller_identity.current: Reading...
aws_iam_role.web_server_secrets: Refreshing state... [id=terraform-mastery-web-server-secrets-role]
module.github_oidc.aws_iam_role.terraform_plan: Refreshing state... [id=github-actions-terraform-plan]
data.aws_availability_zones.available: Read complete after 1s [id=ap-south-1]
module.github_oidc.aws_iam_role.terraform_apply: Refreshing state... [id=github-actions-terraform-apply]
data.aws_caller_identity.current: Read complete after 0s [id=464975960111]
data.aws_iam_policy_document.web_server_secrets: Reading...
data.aws_iam_policy_document.web_server_secrets: Read complete after 0s [id=2658366634]
module.asg.aws_iam_role_policy_attachment.secrets: Refreshing state... [id=terraform-mastery-app-instance-role-20260818054358763700000003]
module.asg.aws_iam_role_policy_attachment.ssm: Refreshing state... [id=terraform-mastery-app-instance-role-20260818054358583400000002]
module.asg.aws_iam_instance_profile.app_instance: Refreshing state... [id=terraform-mastery-app-instance-profile]
data.aws_ami.latest_packer_build: Read complete after 1s [id=ami-010bc4cb24e6f689e]
module.rds.aws_sns_topic_subscription.rds_alerts_email: Refreshing state... [id=arn:aws:sns:ap-south-1:464975960111:terraform-mastery-rds-alerts:7a2d0093-1d59-405f-8608-c1c37d01390d]
aws_iam_instance_profile.web_server: Refreshing state... [id=terraform-mastery-web-server-profile]
aws_iam_role_policy.web_server_secrets: Refreshing state... [id=terraform-mastery-web-server-secrets-role:read-rds-credentials]
data.aws_ami.ubuntu: Read complete after 1s [id=ami-0aa761682283b4cc8]
module.github_oidc.aws_iam_role_policy_attachment.apply_admin: Refreshing state... [id=github-actions-terraform-apply-20260818054358828300000004]
module.github_oidc.aws_iam_role_policy_attachment.plan_readonly: Refreshing state... [id=github-actions-terraform-plan-20260818054358848700000005]
module.github_oidc.aws_iam_role_policy.plan_backend: Refreshing state... [id=github-actions-terraform-plan:github-actions-terraform-plan-backend]
data.aws_vpc.default: Read complete after 2s [id=vpc-068d3f58004814661]
aws_security_group.imported_sg: Refreshing state... [id=sg-0e61fcd4f3ed8ee96]
aws_security_group.demo_sg: Refreshing state... [id=sg-07c09914d4ce874f3]
module.main_vpc.aws_internet_gateway.this: Refreshing state... [id=igw-00d90a79438efefd4]
module.main_vpc.aws_subnet.private[0]: Refreshing state... [id=subnet-05b0fac0ac4e69049]
module.main_vpc.aws_subnet.public[0]: Refreshing state... [id=subnet-03f83da4c2ede3641]
module.alb.aws_security_group.alb: Refreshing state... [id=sg-04af7251a979c8daf]
module.main_vpc.aws_subnet.public[1]: Refreshing state... [id=subnet-0dd762616728a8a65]
module.main_vpc.aws_subnet.private[1]: Refreshing state... [id=subnet-062363b66b590d170]
module.alb.aws_lb_target_group.this: Refreshing state... [id=arn:aws:elasticloadbalancing:ap-south-1:464975960111:targetgroup/terraform-mastery-tg/dba9042eea8ae2eb]
module.main_vpc.aws_route_table.public: Refreshing state... [id=rtb-00b6e59cce8ec7f45]
module.asg.aws_security_group.app: Refreshing state... [id=sg-0232654fd2da41617]
module.rds.aws_db_subnet_group.this: Refreshing state... [id=terraform-mastery-db-subnet-group]
module.main_vpc.aws_nat_gateway.this[0]: Refreshing state... [id=nat-05439eeea5f6b969d]
module.alb.aws_lb.this: Refreshing state... [id=arn:aws:elasticloadbalancing:ap-south-1:464975960111:loadbalancer/app/terraform-mastery-alb/e07e9c4c675f2492]
module.main_vpc.aws_route_table_association.public[1]: Refreshing state... [id=rtbassoc-0eb2859d866024808]
module.main_vpc.aws_route_table_association.public[0]: Refreshing state... [id=rtbassoc-0058b1266eaa699cd]
module.rds.aws_security_group.rds: Refreshing state... [id=sg-00be19555dfecf3c1]
module.asg.aws_launch_template.this: Refreshing state... [id=lt-0e40dcefae65b6cc4]
module.main_vpc.aws_route_table.private[0]: Refreshing state... [id=rtb-0162c380846527788]
module.main_vpc.aws_route_table_association.private[1]: Refreshing state... [id=rtbassoc-0e9fe3288ca23fd00]
module.main_vpc.aws_route_table_association.private[0]: Refreshing state... [id=rtbassoc-0b78c8e90f14219b8]
module.rds.aws_db_instance.this: Refreshing state... [id=db-FN6O4O3VIJASAHL4YJLOKF3UZU]
module.rds.aws_secretsmanager_secret_version.rds_credentials: Refreshing state... [id=terraform-mastery-rds-credentials|terraform-20260818055545232800000001]
module.rds.aws_cloudwatch_metric_alarm.low_storage: Refreshing state... [id=terraform-mastery-rds-low-storage]
module.asg.aws_autoscaling_group.this: Refreshing state... [id=terraform-mastery-asg]
aws_cloudwatch_dashboard.main: Refreshing state... [id=terraform-mastery-overview]
module.alb.aws_lb_listener.http: Refreshing state... [id=arn:aws:elasticloadbalancing:ap-south-1:464975960111:listener/app/terraform-mastery-alb/e07e9c4c675f2492/a3288cd841714f56]
module.asg.aws_autoscaling_policy.cpu_target_tracking: Refreshing state... [id=terraform-mastery-cpu-tracking]
module.alb.aws_lb_listener_rule.block_admin: Refreshing state... [id=arn:aws:elasticloadbalancing:ap-south-1:464975960111:listener-rule/app/terraform-mastery-alb/e07e9c4c675f2492/a3288cd841714f56/e45cf816b42902c0]

Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:
  ~ update in-place

Terraform will perform the following actions:

  # module.rds.aws_db_instance.this will be updated in-place
  ~ resource "aws_db_instance" "this" {
        id                                    = "db-FN6O4O3VIJASAHL4YJLOKF3UZU"
        tags                                  = {
            "Environment" = "dev"
            "ManagedBy"   = "Terraform"
            "Name"        = "terraform-mastery-db"
            "Project"     = "terraform-mastery"
        }
        # (57 unchanged attributes hidden)
    }

  # module.rds.aws_secretsmanager_secret_version.rds_credentials will be updated in-place
  ~ resource "aws_secretsmanager_secret_version" "rds_credentials" {
        id             = "terraform-mastery-rds-credentials|terraform-20260818055545232800000001"
        # (5 unchanged attributes hidden)
    }

  # module.rds.random_password.db_password will be updated in-place
  ~ resource "random_password" "db_password" {
        id               = "none"
        # (13 unchanged attributes hidden)
    }

Plan: 0 to add, 3 to change, 0 to destroy.

─────────────────────────────────────────────────────────────────────────────

Note: You didn't use the -out option to save this plan, so Terraform can't
guarantee to take exactly these actions if you run "terraform apply" now.
Releasing state lock. This may take a few moments...