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c0772b8eda
Add new `--airgapped` flag to talos cluster create (qemu) to disable NAT in the VMs to effectively become airgapped. Signed-off-by: Mateusz Urbanek <mateusz.urbanek@siderolabs.com>
62 lines
1.4 KiB
Go
62 lines
1.4 KiB
Go
// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package vm
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import (
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"fmt"
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"net/netip"
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"os"
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"os/exec"
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"strconv"
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"strings"
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"syscall"
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"github.com/siderolabs/gen/xslices"
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"github.com/siderolabs/talos/pkg/provision"
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)
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func (p *Provisioner) startDNSd(state *State, clusterReq provision.ClusterRequest) error {
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pidPath := state.GetRelativePath(dnsPid)
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logFile, err := os.OpenFile(state.GetRelativePath(dnsLog), os.O_APPEND|os.O_CREATE|os.O_RDWR, 0o666)
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if err != nil {
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return err
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}
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defer logFile.Close() //nolint:errcheck
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gatewayAddrs := xslices.Map(clusterReq.Network.GatewayAddrs, netip.Addr.String)
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args := []string{
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"dnsd-launch",
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"--addr", strings.Join(gatewayAddrs, ","),
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"--resolv-conf", "/etc/resolv.conf",
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}
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cmd := exec.Command(clusterReq.SelfExecutable, args...) //nolint:noctx // runs in background
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cmd.Stdout = logFile
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cmd.Stderr = logFile
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cmd.SysProcAttr = &syscall.SysProcAttr{
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Setsid: true, // daemonize
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}
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if err = cmd.Start(); err != nil {
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return err
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}
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if err = os.WriteFile(pidPath, []byte(strconv.Itoa(cmd.Process.Pid)), os.ModePerm); err != nil {
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return fmt.Errorf("error writing dns PID file: %w", err)
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}
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return nil
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}
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func (p *Provisioner) stopDNSd(state *State) error {
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pidPath := state.GetRelativePath(dnsPid)
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return StopProcessByPidfile(pidPath)
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}
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