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Don't forget to Shutdown the DNS Server! 

Fixes #609

Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
This commit is contained in:
Dave Tucker 2015-01-16 12:11:34 +00:00
parent 17cf8cc4f8
commit f026b8781e
2 changed files with 21 additions and 6 deletions
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3
command/agent/command.go
View File

@ -571,6 +571,9 @@ func (c *Command) Run(args []string) int {
if c.rpcServer != nil {
defer c.rpcServer.Shutdown()
}
if c.dnsServer != nil {
defer c.dnsServer.Shutdown()
}
for _, server := range c.httpServers {
defer server.Shutdown()

24
command/agent/dns.go
View File

@ -33,6 +33,16 @@ type DNSServer struct {
logger *log.Logger
}
// Shutdown stops the DNS Servers
func (d *DNSServer) Shutdown() {
if err := d.dnsServer.Shutdown(); err != nil {
d.logger.Printf("[ERR] dns: error stopping udp server: %v", err)
}
if err := d.dnsServerTCP.Shutdown(); err != nil {
d.logger.Printf("[ERR] dns: error stopping tcp server: %v", err)
}
}
// NewDNSServer starts a new DNS server to provide an agent interface
func NewDNSServer(agent *Agent, config *DNSConfig, logOutput io.Writer, domain string, bind string, recursors []string) (*DNSServer, error) {
// Make sure domain is FQDN
@ -92,16 +102,18 @@ func NewDNSServer(agent *Agent, config *DNSConfig, logOutput io.Writer, domain s
// Async start the DNS Servers, handle a potential error
errCh := make(chan error, 1)
go func() {
err := server.ListenAndServe()
srv.logger.Printf("[ERR] dns: error starting udp server: %v", err)
errCh <- fmt.Errorf("dns udp setup failed: %v", err)
if err := server.ListenAndServe(); err != nil {
srv.logger.Printf("[ERR] dns: error starting udp server: %v", err)
errCh <- fmt.Errorf("dns udp setup failed: %v", err)
}
}()
errChTCP := make(chan error, 1)
go func() {
err := serverTCP.ListenAndServe()
srv.logger.Printf("[ERR] dns: error starting tcp server: %v", err)
errChTCP <- fmt.Errorf("dns tcp setup failed: %v", err)
if err := serverTCP.ListenAndServe(); err != nil {
srv.logger.Printf("[ERR] dns: error starting tcp server: %v", err)
errChTCP <- fmt.Errorf("dns tcp setup failed: %v", err)
}
}()
// Check the server is running, do a test lookup