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Constants ¶
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const ( // InternalDomain is the cluster internal domain for service discovery. All DNS queries ending with this suffix // will be resolved using the internal DNS server. InternalDomain = "internal." // Port is the standard DNS port. Port = 53 )
Variables ¶
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Functions ¶
This section is empty.
Types ¶
type ClusterResolver ¶
type ClusterResolver struct {
// contains filtered or unexported fields
}
ClusterResolver implements Resolver by tracking containers in the cluster and resolving service names to their IP addresses.
func NewClusterResolver ¶
func NewClusterResolver(store *store.Store) *ClusterResolver
NewClusterResolver creates a new cluster resolver using the cluster store.
type Resolver ¶
type Resolver interface {
// Resolve returns a list of IP addresses of the service containers.
// An empty list is returned if no service is found.
Resolve(serviceName string) []netip.Addr
}
Resolver is an interface for resolving service names to IP addresses.
type Server ¶
type Server struct {
// contains filtered or unexported fields
}
Server is an embedded internal DNS server for service discovery and forwarding external queries to upstream DNS servers.
func NewServer ¶
func NewServer(listenAddr netip.Addr, resolver Resolver, upstreams []netip.AddrPort) (*Server, error)
NewServer creates a new DNS server with the given configuration. If upstreams is nil, nameservers from /etc/resolv.conf will be used. An empty upstreams list means to only resolve internal DNS queries and not forward any external queries.
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