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DNS_KEEP_NAMESERVER variable, refers to #188

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This commit is contained in:
Quentin McGaw
2020-07-11 23:51:53 +00:00
parent 78b63174ce
commit 8b096af04e
9 changed files with 32 additions and 11 deletions
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12
internal/dns/nameserver.go
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@@ -21,7 +21,7 @@ func (c *configurator) UseDNSInternally(ip net.IP) {
}
// UseDNSSystemWide changes the nameserver to use for DNS system wide
func (c *configurator) UseDNSSystemWide(ip net.IP) error {
func (c *configurator) UseDNSSystemWide(ip net.IP, keepNameserver bool) error {
c.logger.Info("using DNS address %s system wide", ip.String())
data, err := c.fileManager.ReadFile(string(constants.ResolvConf))
if err != nil {
@@ -33,10 +33,12 @@ func (c *configurator) UseDNSSystemWide(ip net.IP) error {
lines = nil
}
found := false
for i := range lines {
if strings.HasPrefix(lines[i], "nameserver ") {
lines[i] = "nameserver " + ip.String()
found = true
if !keepNameserver { // default
for i := range lines {
if strings.HasPrefix(lines[i], "nameserver ") {
lines[i] = "nameserver " + ip.String()
found = true
}
}
}
if !found {