configurator/internal/generator/plugins/dnsmasq/dnsmasq.go
2024-06-20 17:09:31 -06:00

91 lines
2.6 KiB
Go

package main
import (
"fmt"
configurator "github.com/OpenCHAMI/configurator/internal"
"github.com/OpenCHAMI/configurator/internal/generator"
"github.com/OpenCHAMI/configurator/internal/util"
)
type DnsMasq struct{}
func TestGenerateDnsMasq() {
var (
g = DnsMasq{}
config = &configurator.Config{}
client = configurator.SmdClient{}
)
g.Generate(
config,
generator.WithTemplate("dnsmasq"),
generator.WithClient(client),
)
}
func (g *DnsMasq) GetName() string {
return "dnsmasq"
}
func (g *DnsMasq) GetGroups() []string {
return []string{"dnsmasq"}
}
func (g *DnsMasq) Generate(config *configurator.Config, opts ...util.Option) ([]byte, error) {
// make sure we have a valid config first
if config == nil {
return nil, fmt.Errorf("invalid config (config is nil)")
}
// set all the defaults for variables
var (
params = generator.GetParams(opts...)
client = generator.GetClient(params)
template = params["template"].(string) // required param
path = config.TemplatePaths[template]
eths []configurator.EthernetInterface = nil
err error = nil
)
// if we have a client, try making the request for the ethernet interfaces
if client != nil {
eths, err = client.FetchEthernetInterfaces(opts...)
if err != nil {
return nil, fmt.Errorf("failed to fetch ethernet interfaces with client: %v", err)
}
}
// check if we have the required params first
if eths == nil {
return nil, fmt.Errorf("invalid ethernet interfaces (variable is nil)")
}
if len(eths) <= 0 {
return nil, fmt.Errorf("no ethernet interfaces found")
}
// print message if verbose param found
if verbose, ok := params["verbose"].(bool); ok {
if verbose {
fmt.Printf("path: %s\neth count: %v\n", path, len(eths))
}
}
// format output to write to config file
output := "# ========== DYNAMICALLY GENERATED BY OPENCHAMI CONFIGURATOR ==========\n"
for _, eth := range eths {
if eth.Type == "NodeBMC" {
output += "dhcp-host=" + eth.MacAddress + "," + eth.ComponentId + "," + eth.IpAddresses[0].IpAddress + "\n"
} else {
output += "dhcp-host=" + eth.MacAddress + "," + eth.ComponentId + "," + eth.IpAddresses[0].IpAddress + "\n"
}
}
output += "# ====================================================================="
// apply template substitutions and return output as byte array
return generator.ApplyTemplate(path, generator.Mappings{
"name": g.GetName(),
"output": output,
})
}
var Generator DnsMasq