isle/go/daemon/child_dnsmasq.go

51 lines
1.2 KiB
Go

package daemon
import (
"fmt"
"isle/bootstrap"
"isle/dnsmasq"
"path/filepath"
"sort"
"code.betamike.com/micropelago/pmux/pmuxlib"
)
func dnsmasqPmuxProcConfig(
runtimeDirPath, binDirPath string,
hostBootstrap bootstrap.Bootstrap,
daemonConfig Config,
) (
pmuxlib.ProcessConfig, error,
) {
confPath := filepath.Join(runtimeDirPath, "dnsmasq.conf")
hostsSlice := make([]dnsmasq.ConfDataHost, 0, len(hostBootstrap.Hosts))
for _, host := range hostBootstrap.Hosts {
hostsSlice = append(hostsSlice, dnsmasq.ConfDataHost{
Name: string(host.Name),
IP: host.IP().String(),
})
}
sort.Slice(hostsSlice, func(i, j int) bool {
return hostsSlice[i].IP < hostsSlice[j].IP
})
confData := dnsmasq.ConfData{
Resolvers: daemonConfig.DNS.Resolvers,
Domain: hostBootstrap.AdminCreationParams.Domain,
IP: hostBootstrap.ThisHost().IP().String(),
Hosts: hostsSlice,
}
if err := dnsmasq.WriteConfFile(confPath, confData); err != nil {
return pmuxlib.ProcessConfig{}, fmt.Errorf("writing dnsmasq.conf to %q: %w", confPath, err)
}
return pmuxlib.ProcessConfig{
Name: "dnsmasq",
Cmd: filepath.Join(binDirPath, "dnsmasq"),
Args: []string{"-d", "-C", confPath},
}, nil
}