constellation/cli/internal/terraform/variables.go

279 lines
9.5 KiB
Go

/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
package terraform
import (
"fmt"
"strings"
)
// Variables is a struct that holds all variables that are passed to Terraform.
type Variables interface {
fmt.Stringer
}
// CommonVariables is user configuration for creating a cluster with Terraform.
type CommonVariables struct {
// Name of the cluster.
Name string
// CountControlPlanes is the number of control-plane nodes to create.
CountControlPlanes int
// CountWorkers is the number of worker nodes to create.
CountWorkers int
// StateDiskSizeGB is the size of the state disk to allocate to each node, in GB.
StateDiskSizeGB int
}
// String returns a string representation of the variables, formatted as Terraform variables.
func (v *CommonVariables) String() string {
b := &strings.Builder{}
writeLinef(b, "name = %q", v.Name)
writeLinef(b, "control_plane_count = %d", v.CountControlPlanes)
writeLinef(b, "worker_count = %d", v.CountWorkers)
writeLinef(b, "state_disk_size = %d", v.StateDiskSizeGB)
return b.String()
}
// AWSClusterVariables is user configuration for creating a cluster with Terraform on GCP.
type AWSClusterVariables struct {
// CommonVariables contains common variables.
CommonVariables
// Region is the AWS region to use.
Region string
// Zone is the AWS zone to use in the given region.
Zone string
// AMIImageID is the ID of the AMI image to use.
AMIImageID string
// InstanceType is the type of the EC2 instance to use.
InstanceType string
// StateDiskType is the EBS disk type to use for the state disk.
StateDiskType string
// IAMGroupControlPlane is the IAM group to use for the control-plane nodes.
IAMProfileControlPlane string
// IAMGroupWorkerNodes is the IAM group to use for the worker nodes.
IAMProfileWorkerNodes string
// Debug is true if debug mode is enabled.
Debug bool
}
func (v *AWSClusterVariables) String() string {
b := &strings.Builder{}
b.WriteString(v.CommonVariables.String())
writeLinef(b, "region = %q", v.Region)
writeLinef(b, "zone = %q", v.Zone)
writeLinef(b, "ami = %q", v.AMIImageID)
writeLinef(b, "instance_type = %q", v.InstanceType)
writeLinef(b, "state_disk_type = %q", v.StateDiskType)
writeLinef(b, "iam_instance_profile_control_plane = %q", v.IAMProfileControlPlane)
writeLinef(b, "iam_instance_profile_worker_nodes = %q", v.IAMProfileWorkerNodes)
writeLinef(b, "debug = %t", v.Debug)
return b.String()
}
// AWSIAMVariables is user configuration for creating the IAM configuration with Terraform on Microsoft Azure.
type AWSIAMVariables struct {
// Region is the AWS location to use. (e.g. us-east-2)
Region string
// Prefix is the name prefix of the resources to use.
Prefix string
}
// String returns a string representation of the IAM-specific variables, formatted as Terraform variables.
func (v *AWSIAMVariables) String() string {
b := &strings.Builder{}
writeLinef(b, "name_prefix = %q", v.Prefix)
writeLinef(b, "region = %q", v.Region)
return b.String()
}
// GCPClusterVariables is user configuration for creating resources with Terraform on GCP.
type GCPClusterVariables struct {
// CommonVariables contains common variables.
CommonVariables
// Project is the ID of the GCP project to use.
Project string
// Region is the GCP region to use.
Region string
// Zone is the GCP zone to use.
Zone string
// CredentialsFile is the path to the GCP credentials file.
CredentialsFile string
// InstanceType is the GCP instance type to use.
InstanceType string
// StateDiskType is the GCP disk type to use for the state disk.
StateDiskType string
// ImageID is the ID of the GCP image to use.
ImageID string
// Debug is true if debug mode is enabled.
Debug bool
}
// String returns a string representation of the variables, formatted as Terraform variables.
func (v *GCPClusterVariables) String() string {
b := &strings.Builder{}
b.WriteString(v.CommonVariables.String())
writeLinef(b, "project = %q", v.Project)
writeLinef(b, "region = %q", v.Region)
writeLinef(b, "zone = %q", v.Zone)
writeLinef(b, "instance_type = %q", v.InstanceType)
writeLinef(b, "state_disk_type = %q", v.StateDiskType)
writeLinef(b, "image_id = %q", v.ImageID)
writeLinef(b, "debug = %t", v.Debug)
return b.String()
}
// GCPIAMVariables is user configuration for creating the IAM confioguration with Terraform on GCP.
type GCPIAMVariables struct {
// Project is the ID of the GCP project to use.
Project string
// Region is the GCP region to use.
Region string
// Zone is the GCP zone to use.
Zone string
// ServiceAccountID is the ID of the service account to use.
ServiceAccountID string
}
// String returns a string representation of the IAM-specific variables, formatted as Terraform variables.
func (v *GCPIAMVariables) String() string {
b := &strings.Builder{}
writeLinef(b, "project_id = %q", v.Project)
writeLinef(b, "region = %q", v.Region)
writeLinef(b, "zone = %q", v.Zone)
writeLinef(b, "service_account_id = %q", v.ServiceAccountID)
return b.String()
}
// AzureClusterVariables is user configuration for creating a cluster with Terraform on Azure.
type AzureClusterVariables struct {
// CommonVariables contains common variables.
CommonVariables
// ResourceGroup is the name of the Azure resource group to use.
ResourceGroup string
// Location is the Azure location to use.
Location string
// UserAssignedIdentity is the name of the Azure user-assigned identity to use.
UserAssignedIdentity string
// InstanceType is the Azure instance type to use.
InstanceType string
// StateDiskType is the Azure disk type to use for the state disk.
StateDiskType string
// ImageID is the ID of the Azure image to use.
ImageID string
// ConfidentialVM sets the VM to be confidential.
ConfidentialVM bool
// SecureBoot sets the VM to use secure boot.
SecureBoot bool
// Debug is true if debug mode is enabled.
Debug bool
}
// String returns a string representation of the variables, formatted as Terraform variables.
func (v *AzureClusterVariables) String() string {
b := &strings.Builder{}
b.WriteString(v.CommonVariables.String())
writeLinef(b, "resource_group = %q", v.ResourceGroup)
writeLinef(b, "location = %q", v.Location)
writeLinef(b, "user_assigned_identity = %q", v.UserAssignedIdentity)
writeLinef(b, "instance_type = %q", v.InstanceType)
writeLinef(b, "state_disk_type = %q", v.StateDiskType)
writeLinef(b, "image_id = %q", v.ImageID)
writeLinef(b, "confidential_vm = %t", v.ConfidentialVM)
writeLinef(b, "secure_boot = %t", v.SecureBoot)
writeLinef(b, "debug = %t", v.Debug)
return b.String()
}
// AzureIAMVariables is user configuration for creating the IAM configuration with Terraform on Microsoft Azure.
type AzureIAMVariables struct {
// Region is the Azure region to use. (e.g. westus)
Region string
// ServicePrincipal is the name of the service principal to use.
ServicePrincipal string
// ResourceGroup is the name of the resource group to use.
ResourceGroup string
}
// String returns a string representation of the IAM-specific variables, formatted as Terraform variables.
func (v *AzureIAMVariables) String() string {
b := &strings.Builder{}
writeLinef(b, "service_principal_name = %q", v.ServicePrincipal)
writeLinef(b, "region = %q", v.Region)
writeLinef(b, "resource_group_name = %q", v.ResourceGroup)
return b.String()
}
// QEMUVariables is user configuration for creating a QEMU cluster with Terraform.
type QEMUVariables struct {
// CommonVariables contains common variables.
CommonVariables
// LibvirtURI is the libvirt connection URI.
LibvirtURI string
// LibvirtSocketPath is the path to the libvirt socket in case of unix socket.
LibvirtSocketPath string
// CPUCount is the number of CPUs to allocate to each node.
CPUCount int
// MemorySizeMiB is the amount of memory to allocate to each node, in MiB.
MemorySizeMiB int
// IPRangeStart is the first IP address in the IP range to allocate to the cluster.
ImagePath string
// ImageFormat is the format of the image from ImagePath.
ImageFormat string
// MetadataAPIImage is the container image to use for the metadata API.
MetadataAPIImage string
// MetadataLibvirtURI is the libvirt connection URI used by the metadata container.
// In case of unix socket, this should be "qemu:///system".
// Other wise it should be the same as LibvirtURI.
MetadataLibvirtURI string
// NVRAM is the path to the NVRAM template.
NVRAM string
// Firmware is the path to the firmware.
Firmware string
}
// String returns a string representation of the variables, formatted as Terraform variables.
func (v *QEMUVariables) String() string {
b := &strings.Builder{}
b.WriteString(v.CommonVariables.String())
writeLinef(b, "libvirt_uri = %q", v.LibvirtURI)
writeLinef(b, "libvirt_socket_path = %q", v.LibvirtSocketPath)
writeLinef(b, "constellation_os_image = %q", v.ImagePath)
writeLinef(b, "image_format = %q", v.ImageFormat)
writeLinef(b, "vcpus = %d", v.CPUCount)
writeLinef(b, "memory = %d", v.MemorySizeMiB)
writeLinef(b, "metadata_api_image = %q", v.MetadataAPIImage)
writeLinef(b, "metadata_libvirt_uri = %q", v.MetadataLibvirtURI)
switch v.NVRAM {
case "production":
b.WriteString("nvram = \"/usr/share/OVMF/constellation_vars.production.fd\"\n")
case "testing":
b.WriteString("nvram = \"/usr/share/OVMF/constellation_vars.testing.fd\"\n")
default:
writeLinef(b, "nvram = %q", v.NVRAM)
}
if v.Firmware != "" {
writeLinef(b, "firmware = %q", v.Firmware)
}
return b.String()
}
func writeLinef(builder *strings.Builder, format string, a ...any) {
builder.WriteString(fmt.Sprintf(format, a...))
builder.WriteByte('\n')
}