terraform-oci-infra-k8s-oracle-cloud

Terraform module to provision infrastructure used to create free Kubernetes cluster in Oracle Cloud

Prerequisites

1. Install tools:
   • Terraform
   • OCI Command Line Interface (CLI)

Usage

1. Authenticate to Oracle Cloud:

oci session authenticate --region eu-frankfurt-1 --profile-name k8s-oci

Token can be later refreshed by command:

oci session refresh --profile k8s-oci

2. Initialize Terraform:

cd examples/basic
terraform init

3. Prepare file with variables values:

cp example.tfvars terraform.tfvars
vi terraform.tfvars

4. Apply code for infrastructure:

terraform apply

Requirements

Name	Version
terraform	>= 1.3.0
oci	~> 6.19.0

Providers

Name	Version
oci	~> 6.19.0

Modules

No modules.

Resources

Name	Type
oci_core_default_route_table.k8s_vcn_route_table	resource
oci_core_default_security_list.k8s_vcn_security_list	resource
oci_core_instance.k8s_node	resource
oci_core_internet_gateway.k8s_internet_gateway	resource
oci_core_subnet.k8s_subnet	resource
oci_core_vcn.k8s_vcn	resource
oci_network_load_balancer_backend.k8s_backend	resource
oci_network_load_balancer_backend.nginx_http_backend	resource
oci_network_load_balancer_backend_set.k8s_backend_set	resource
oci_network_load_balancer_backend_set.nginx_http_backend_set	resource
oci_network_load_balancer_listener.k8s_listener	resource
oci_network_load_balancer_listener.nginx_http_listener	resource
oci_network_load_balancer_network_load_balancer.k8s_network_load_balancer	resource
oci_core_images.oci_ubuntu_images	data source
oci_identity_availability_domains.ads	data source

Inputs

Name	Description	Type	Default	Required
availability_domains	Availability domains in which instances are going to be created	list(number)	[ 0, 1, 2, 0 ]	no
compartment_id	Compartment ID	string	n/a	yes
egress_security_rules	Egress security rules	list(map(string))	[]	no
id_rsa_pub	SSH public key	string	n/a	yes
ingress_security_rules	Ingress security rules	list(map(string))	[]	no
instance_count	Number of instances to create	number	4	no
instance_shape	Shape of instance	string	"VM.Standard.A1.Flex"	no
my_public_ip	My public IP address	string	n/a	yes
subnet_cidr_block	Subnet CIDR	string	"172.16.0.0/24"	no
vcn_cidr_block	VCN CIDR	string	"172.16.0.0/20"	no

Outputs

Name	Description
availability_domain	availability domain
compute_instances	Names and IPs of created instances
compute_instances_public_ip	Public IPs of created nodes
lb_id	ID of LB
lb_public_ip	Public IPs of LB
oci_ubuntu_images	List of possible Ubuntu images
subnet_cidr	CIDR block of the core subnet
subnet_id	ID of the core subnet
subnet_state	The state of the subnet
vcn_cidr	CIDR block of the core VCN
vcn_id	ID of the core VCN
vcn_state	the state of the VCN

License

MIT Licensed. See LICENSE.