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coredns/plugin/forwardcrd/fakes_test.go

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Initial implementation of ForwardCRD plugin (#4512) * Add forwardcrd plugin README.md Co-authored-by: Aidan Obley <aobley@vmware.com> Signed-off-by: Christian Ang <angc@vmware.com> * Create forwardcrd plugin - Place forwardcrd before forward plugin in plugin list. This will avoid forward from preventing the forwardcrd plugin from handling any queries in the case of having a default upstream forwarder in a server block (as is the case in the default kubernetes Corefile). Co-authored-by: Aidan Obley <aobley@vmware.com> Signed-off-by: Christian Ang <angc@vmware.com> * Add Forward CRD Signed-off-by: Christian Ang <angc@vmware.com> * Add NewWithConfig to forward plugin - allows external packages to instanciate forward plugins Co-authored-by: Aidan Obley <aobley@vmware.com> Signed-off-by: Christian Ang <angc@vmware.com> * ForwardCRD plugin handles requests for Forward CRs - add a Kubernetes controller that can read Forward CRs - instances of the forward plugin are created based on Forward CRs from the Kubernetes controller - DNS requests are handled by calling matching Forward plugin instances based on zone name - Defaults to the kube-system namespace to align with Corefile RBAC Signed-off-by: Christian Ang <angc@vmware.com> Use klog v2 in forwardcrd plugin * Refactor forward setup to use NewWithConfig Co-authored-by: Christian Ang <angc@vmware.com> Signed-off-by: Edwin Xie <exie@vmware.com> * Use ParseInt instead of Atoi - to ensure that the bitsize is 32 for later casting to uint32 Signed-off-by: Christian Ang <angc@vmware.com> * Add @christianang to CODEOWNERS for forwardcrd Signed-off-by: Christian Ang <angc@vmware.com> Co-authored-by: Edwin Xie <exie@vmware.com>
2021-11-12 08:22:34 -08:00
package forwardcrd
import (
"context"
"sync"
"github.com/coredns/coredns/plugin/forward"
"github.com/miekg/dns"
)
type TestPluginHandler struct {
mutex sync.Mutex
ReceivedConfig forward.ForwardConfig
onStartupCallCount int
onShutdownCallCount int
}
func (t *TestPluginHandler) ServeDNS(context.Context, dns.ResponseWriter, *dns.Msg) (int, error) {
return 0, nil
}
func (t *TestPluginHandler) Name() string { return "" }
func (t *TestPluginHandler) OnStartup() error {
t.mutex.Lock()
defer t.mutex.Unlock()
t.onStartupCallCount++
return nil
}
func (t *TestPluginHandler) OnShutdown() error {
t.mutex.Lock()
defer t.mutex.Unlock()
t.onShutdownCallCount++
return nil
}
func (t *TestPluginHandler) OnStartupCallCount() int {
t.mutex.Lock()
defer t.mutex.Unlock()
return t.onStartupCallCount
}
func (t *TestPluginHandler) OnShutdownCallCount() int {
t.mutex.Lock()
defer t.mutex.Unlock()
return t.onShutdownCallCount
}
type TestPluginInstancer struct {
mutex sync.Mutex
testPluginHandlers []*TestPluginHandler
}
func (t *TestPluginInstancer) NewWithConfig(config forward.ForwardConfig) (lifecyclePluginHandler, error) {
t.mutex.Lock()
defer t.mutex.Unlock()
testPluginHandler := &TestPluginHandler{
ReceivedConfig: config,
}
t.testPluginHandlers = append(t.testPluginHandlers, testPluginHandler)
return testPluginHandler, nil
}
func (t *TestPluginInstancer) NewWithConfigArgsForCall(index int) *TestPluginHandler {
t.mutex.Lock()
defer t.mutex.Unlock()
return t.testPluginHandlers[index]
}
func (t *TestPluginInstancer) NewWithConfigCallCount() int {
t.mutex.Lock()
defer t.mutex.Unlock()
return len(t.testPluginHandlers)
}
type TestController struct {
}
func (t *TestController) Run(threads int) {}
func (t *TestController) HasSynced() bool { return true }
func (t *TestController) Stop() error { return nil }