Add unit terraform test for cluster_cni default values

Signed-off-by: David.Houck <[email protected]>

tests/variable_defaults.tftest.hcl

@@ -0,0 +1,257 @@
+# Description: This terraform test file checks the default values for variables in the variables.tf file. 
+# The variables are used to define the configuration of the virtual machines that will be created in the vSphere environment.
+#
+# The tests check the default values for the following variables:
+#
+# - cluster_cni
+# - cluster_cni_version
+#
+# The test checks that the default values for the variables match the expected values.
+#
+# The expected values are:
+# - cluster_cni: "calico"
+# - cluster_cni_version: "3.29.0"
+# 
+# In order to run this test, the following environment variables must be exported to the shell where the test is run:
+# - vsphere_server
+# - vsphere_username
+# - vsphere_password
+#
+#  The following statements are an example of how to export the environment variables prior to running the test:
+#
+# export TF_VAR_vsphere_user=****
+# export TF_VAR_vsphere_password=****
+# export TF_VAR_vsphere_server=vcenter*.*.*.*
+#
+# Be sure to fill in the configured VSphere values for the _REPLACE_ME_ placeholders in the vSphere variables section below.
+#
+# The test can be executed by running the following command in the root directory of the repository:
+# terraform test --verbose --filter=tests/variable_defaults.tftest.hcl
+
+
+variables {
+
+deployment_type = "vsphere"
+
+# General items
+ansible_user     = "ubuntu"
+ansible_password = "ubuntu"
+prefix           = "prefix14"  # Infra prefix TODO REPLACE ME
+gateway          = "10.124.93.1" # Gateway for servers
+netmask          = "24"          # Network interface netmask
+
+# vSphere
+# TODO: Replace the first three values below with the correct values for your configured VSphere environment
+vsphere_server        = "_REPLACE_ME_" # Name of the vSphere server
+vsphere_datacenter    = "_REPLACE_ME_" # Name of the vSphere data center
+vsphere_datastore     = "_REPLACE_ME_" # Name of the vSphere data store to use for the VMs
+vsphere_resource_pool = "viya4-iac-k8s-testing-resource-pool" # Name of the vSphere resource pool to use for the VMs
+vsphere_folder        = "Infrastructure as Code/Users/nobody" # Name of the vSphere folder to store the vms TODO REPLACE ME, use your own folder
+vsphere_template      = "ubuntu_22.04_LTS" # Name of the VM template to clone to create VMs for the cluster TODO REPLACE ME, optional ubuntu_20.04_LTS is also available
+vsphere_network       = "IACdhcp" # Name of the network to to use for the VMs
+
+# Systems
+system_ssh_keys_dir = "/workspace/.ssh" # Directory holding public keys to be used on each system, TODO REPLACE ME your path may differ
+
+# Kubernetes - Cluster
+cluster_version        = "1.30.4"       # Kubernetes Version
+# The next two lines are intentionally commented out to test the assigned default values
+#cluster_cni            = "calico"       # Kubernetes Container Network Interface (CNI)
+#cluster_cni_version    = "3.29.0"       # Kubernetes Container Network Interface (CNI) Version
+cluster_cri            = "containerd"   # Kubernetes Container Runtime Interface (CRI)
+cluster_cri_version    = "1.6.28"       # Kubernetes Container Runtime Interface (CRI) Version
+cluster_service_subnet = "10.43.0.0/16" # Kubernetes Service Subnet
+cluster_pod_subnet     = "10.42.0.0/16" # Kubernetes Pod Subnet
+cluster_domain         = "sas.com"   # Cluster domain suffix for DNS
+
+# Kubernetes - Cluster VIP
+cluster_vip_version = "0.7.1"
+cluster_vip_ip      = "10.124.93.221" # TODO REPLACE ME, put the first IP of the contiguous block your reserved earlier
+cluster_vip_fqdn    = "host.sas.com" # TODO REPLACE ME, put the fqdn of the first IP of the contiguous block your reserved earlier
+
+# Kubernetes - Load Balancer
+
+# Load Balancer Type
+cluster_lb_type = "kube_vip" # Load Balancer accepted values [kube_vip,metallb]
+
+# Load Balancer Addresses
+#
+# Examples for each load balancer type can be found here:
+#
+#  kube-vip address format : https://kube-vip.io/docs/usage/cloud-provider/#the-kube-vip-cloud-provider-configmap
+#  MetalLB address format  : https://metallb.universe.tf/configuration/#layer-2-configuration
+#
+#    kube-vip sample:
+#
+#      cluster_lb_addresses = [
+#        "cidr-default: 192.168.0.200/29",                  # CIDR-based IP range for use in the default Namespace
+#        "range-development: 192.168.0.210-192.168.0.219",  # Range-based IP range for use in the development Namespace
+#        "cidr-finance: 192.168.0.220/29,192.168.0.230/29", # Multiple CIDR-based ranges for use in the finance Namespace
+#        "cidr-global: 192.168.0.240/29"                    # CIDR-based range which can be used in any Namespace
+#      ]
+#
+#    MetalLB sample:
+#
+#      cluster_lb_addresses = [
+#        "192.168.10.0/24",
+#        "192.168.9.1-192.168.9.5"
+#      ]
+#
+#  NOTE: If you are assigning a static IP using the loadBalancerIP value for your 
+#        load balancer controller service when using `metallb` that IP must fall
+#        within the address range you provide below. If you are using `kube_vip`
+#        you do not have this limitation.
+#
+#cluster_lb_addresses = []
+#kube-vip
+cluster_lb_addresses = [
+  "range-global: 10.124.93.222-10.124.93.223", # Range-based IP range for use in the development Namespace  # TODO REPLACE ME, range of the second and third IP of the contiguous block you reserved earlier.
+]
+
+# Control plane node shared ssh key name
+control_plane_ssh_key_name = "cp_ssh"
+
+# Cluster Node Pools config
+#
+#   Your node pools must contain at least 3 or more nodes.
+#   The required node types are:
+#
+#   * control_plane - Having an odd number 3/5/7... ensures
+#                     HA while using kube-vip
+#   * system        - System node pool to run misc pods, etc
+#   * cas           - CAS Nodes
+#   * <node type>   - Any number of node types with unique names.
+#                     These are typically: compute, stateful, and
+#                     stateless. 
+#
+node_pools = {
+  # REQUIRED NODE TYPE - DO NOT REMOVE and DO NOT CHANGE THE NAME
+  #                      Other variables may be altered
+  control_plane = {
+    count       = 3
+    cpus        = 2
+    memory      = 4096
+    os_disk     = 100
+    node_taints = []
+    node_labels = {}
+  },
+  # REQUIRED NODE TYPE - DO NOT REMOVE and DO NOT CHANGE THE NAME
+  #                      Other variables may be altered
+  system = {
+    count       = 1
+    cpus        = 8
+    memory      = 65536
+    os_disk     = 100
+    node_taints = []
+    node_labels = {
+      "kubernetes.azure.com/mode" = "system" # REQUIRED LABEL - DO NOT REMOVE
+    }
+  },
+  cas = {
+    count      = 3
+    cpus       = 16
+    memory     = 131072
+    os_disk    = 350
+    misc_disks = [
+      150,
+      150,
+    ]
+    node_taints = ["workload.sas.com/class=cas:NoSchedule"]
+    node_labels = {
+      "workload.sas.com/class" = "cas"
+    }
+  },
+  compute = {
+    count       = 1
+    cpus        = 16
+    memory      = 131072
+    os_disk     = 100
+    node_taints = ["workload.sas.com/class=compute:NoSchedule"]
+    node_labels = {
+      "workload.sas.com/class"        = "compute"
+      "launcher.sas.com/prepullImage" = "sas-programming-environment"
+    }
+  },
+  stateful = {
+    count      = 1
+    cpus       = 8
+    memory     = 32768
+    os_disk    = 100
+    misc_disks = [
+      150,
+    ]
+    node_taints = ["workload.sas.com/class=stateful:NoSchedule"]
+    node_labels = {
+      "workload.sas.com/class" = "stateful"
+    }
+  },
+  stateless = {
+    count      = 2
+    cpus       = 8
+    memory     = 32768
+    os_disk    = 100
+    misc_disks = [
+      150,
+    ]
+    node_taints = ["workload.sas.com/class=stateless:NoSchedule"]
+    node_labels = {
+      "workload.sas.com/class" = "stateless"
+    }
+  }
+}
+
+# Jump server
+create_jump    = true # Creation flag
+jump_num_cpu   = 4    # 4 CPUs
+jump_memory    = 8092 # 8 GB
+jump_disk_size = 100  # 100 GB
+jump_ip        = "10.124.93.143"   # Assigned values for static IPs # TODO REPLACE ME, use reserved jump IP
+
+# NFS server
+create_nfs    = true  # Creation flag
+nfs_num_cpu   = 4     # 4 CPUs
+nfs_memory    = 16384 # 16 GB
+nfs_disk_size = 400   # 400 GB
+nfs_ip        = "10.124.93.67"    # Assigned values for static IPs # TODO REPLACE ME, use reserved nfs IP
+
+# Postgres Servers
+postgres_servers = {
+  default = {
+    server_num_cpu         = 4                       # 4 CPUs
+    server_memory          = 16384                   # 16 GB
+    server_disk_size       = 128                     # 128 GB
+    server_ip              = "10.124.93.126"                      # Assigned values for static IPs # TODO REPLACE ME, use reserved nfs IP
+    server_version         = 15                      # PostgreSQL version
+    server_ssl             = "off"                   # SSL flag
+    administrator_login    = "postgres"              # PostgreSQL admin user - CANNOT BE CHANGED
+    administrator_password = "S3cretPassw0rd" # PostgreSQL admin user password
+  }
+}
+
+}
+
+run "cluster_cni_should_default_to_calico" {
+
+  command = plan
+
+  variables {
+  }
+
+  assert {
+    condition     = var.cluster_cni == "calico"
+    error_message = "A default value of \"${var.cluster_cni}\" for cluster_cni was not expected."
+  }
+}
+
+run "cluster_cni_version_should_default_to_3_29_0" {
+
+  command = plan
+
+  variables {
+  }
+
+  assert {
+    condition     = var.cluster_cni_version == "3.29.0"
+    error_message = "A default value of \"${var.cluster_cni_version}\" for cluster_cni_version was not expected."
+  }
+}