constellation/cli/internal/terraform/variables.go
Daniel Weiße 2ea695896f
AB#2439 Containerized libvirt (#191)
Signed-off-by: Daniel Weiße <dw@edgeless.systems>
2022-10-05 09:11:30 +02:00

126 lines
4.1 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()
}
// GCPVariables is user configuration for creating a cluster with Terraform on GCP.
type GCPVariables 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 *GCPVariables) 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, "credentials_file = %q", v.CredentialsFile)
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()
}
// 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
}
// 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_coreos_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)
return b.String()
}
func writeLinef(builder *strings.Builder, format string, a ...interface{}) {
builder.WriteString(fmt.Sprintf(format, a...))
builder.WriteByte('\n')
}