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-[[projects]] - digest = "1:4d2e5a73dc1500038e504a8d78b986630e3626dc027bc030ba5c75da257cdb96" - name = "gopkg.in/yaml.v2" - packages = ["."] - pruneopts = "UT" - revision = "51d6538a90f86fe93ac480b35f37b2be17fef232" - version = "v2.2.2" - -[[projects]] - branch = "master" - digest = "1:08f27db4a5192ae419db7d6fb2c402c7faf3605ef3fb30c0976bdb34ee196947" - name = "k8s.io/api" - packages = [ - "admissionregistration/v1beta1", - "apps/v1", - "apps/v1beta1", - "apps/v1beta2", - "auditregistration/v1alpha1", - "authentication/v1", - "authentication/v1beta1", - "authorization/v1", - "authorization/v1beta1", - "autoscaling/v1", - "autoscaling/v2beta1", - "autoscaling/v2beta2", - "batch/v1", - "batch/v1beta1", - "batch/v2alpha1", - "certificates/v1beta1", - "coordination/v1", - "coordination/v1beta1", - "core/v1", - "events/v1beta1", - "extensions/v1beta1", - "networking/v1", - "networking/v1beta1", - "node/v1alpha1", - "node/v1beta1", - "policy/v1beta1", - "rbac/v1", - "rbac/v1alpha1", - "rbac/v1beta1", - "scheduling/v1", - "scheduling/v1alpha1", - "scheduling/v1beta1", - "settings/v1alpha1", - "storage/v1", - "storage/v1alpha1", - "storage/v1beta1", - ] - pruneopts = "UT" - revision = "c5cad27821f602a806fbc313abf36f20aec596de" - -[[projects]] - digest = "1:755eded9d4a8ce43f0d3d93ec8ea14a469a87740f4483be5021434a4b4ac209e" - name = "k8s.io/apimachinery" - packages = [ - "pkg/api/errors", - "pkg/api/meta", - "pkg/api/resource", - "pkg/apis/meta/internalversion", - "pkg/apis/meta/v1", - "pkg/apis/meta/v1/unstructured", - "pkg/apis/meta/v1beta1", - "pkg/conversion", - "pkg/conversion/queryparams", - "pkg/fields", - "pkg/labels", - "pkg/runtime", - "pkg/runtime/schema", - "pkg/runtime/serializer", - "pkg/runtime/serializer/json", - "pkg/runtime/serializer/protobuf", - "pkg/runtime/serializer/recognizer", - "pkg/runtime/serializer/streaming", - "pkg/runtime/serializer/versioning", - "pkg/selection", - "pkg/types", - "pkg/util/cache", - "pkg/util/clock", - "pkg/util/diff", - "pkg/util/errors", - "pkg/util/framer", - "pkg/util/httpstream", - "pkg/util/httpstream/spdy", - "pkg/util/intstr", - "pkg/util/json", - "pkg/util/mergepatch", - "pkg/util/naming", - "pkg/util/net", - "pkg/util/remotecommand", - "pkg/util/runtime", - "pkg/util/sets", - "pkg/util/strategicpatch", - "pkg/util/validation", - "pkg/util/validation/field", - "pkg/util/wait", - "pkg/util/yaml", - "pkg/version", - "pkg/watch", - "third_party/forked/golang/json", - "third_party/forked/golang/netutil", - "third_party/forked/golang/reflect", - ] - pruneopts = "UT" - revision = "b3683fe6b520" - -[[projects]] - branch = "master" - digest = "1:642e57dc486ef777e094364e3fe25cd6f63a5f4412f8df91c2674406ec44371e" - name = "k8s.io/client-go" - packages = [ - "discovery", - "informers", - "informers/admissionregistration", - "informers/admissionregistration/v1beta1", - "informers/apps", - "informers/apps/v1", - "informers/apps/v1beta1", - "informers/apps/v1beta2", - "informers/auditregistration", - "informers/auditregistration/v1alpha1", - "informers/autoscaling", - "informers/autoscaling/v1", - "informers/autoscaling/v2beta1", - "informers/autoscaling/v2beta2", - "informers/batch", - "informers/batch/v1", - "informers/batch/v1beta1", - "informers/batch/v2alpha1", - "informers/certificates", - "informers/certificates/v1beta1", - "informers/coordination", - "informers/coordination/v1", - "informers/coordination/v1beta1", - "informers/core", - "informers/core/v1", - "informers/events", - "informers/events/v1beta1", - "informers/extensions", - "informers/extensions/v1beta1", - "informers/internalinterfaces", - "informers/networking", - "informers/networking/v1", - "informers/networking/v1beta1", - "informers/node", - "informers/node/v1alpha1", - "informers/node/v1beta1", - "informers/policy", - "informers/policy/v1beta1", - "informers/rbac", - "informers/rbac/v1", - "informers/rbac/v1alpha1", - "informers/rbac/v1beta1", - "informers/scheduling", - "informers/scheduling/v1", - "informers/scheduling/v1alpha1", - "informers/scheduling/v1beta1", - "informers/settings", - "informers/settings/v1alpha1", - "informers/storage", - "informers/storage/v1", - "informers/storage/v1alpha1", - "informers/storage/v1beta1", - "kubernetes", - "kubernetes/scheme", - "kubernetes/typed/admissionregistration/v1beta1", - "kubernetes/typed/apps/v1", - "kubernetes/typed/apps/v1beta1", - "kubernetes/typed/apps/v1beta2", - "kubernetes/typed/auditregistration/v1alpha1", - "kubernetes/typed/authentication/v1", - "kubernetes/typed/authentication/v1beta1", - "kubernetes/typed/authorization/v1", - "kubernetes/typed/authorization/v1beta1", - "kubernetes/typed/autoscaling/v1", - "kubernetes/typed/autoscaling/v2beta1", - "kubernetes/typed/autoscaling/v2beta2", - "kubernetes/typed/batch/v1", - "kubernetes/typed/batch/v1beta1", - "kubernetes/typed/batch/v2alpha1", - "kubernetes/typed/certificates/v1beta1", - "kubernetes/typed/coordination/v1", - "kubernetes/typed/coordination/v1beta1", - "kubernetes/typed/core/v1", - "kubernetes/typed/events/v1beta1", - "kubernetes/typed/extensions/v1beta1", - "kubernetes/typed/networking/v1", - "kubernetes/typed/networking/v1beta1", - "kubernetes/typed/node/v1alpha1", - "kubernetes/typed/node/v1beta1", - "kubernetes/typed/policy/v1beta1", - "kubernetes/typed/rbac/v1", - "kubernetes/typed/rbac/v1alpha1", - "kubernetes/typed/rbac/v1beta1", - "kubernetes/typed/scheduling/v1", - "kubernetes/typed/scheduling/v1alpha1", - "kubernetes/typed/scheduling/v1beta1", - "kubernetes/typed/settings/v1alpha1", - "kubernetes/typed/storage/v1", - "kubernetes/typed/storage/v1alpha1", - "kubernetes/typed/storage/v1beta1", - "listers/admissionregistration/v1beta1", - "listers/apps/v1", - "listers/apps/v1beta1", - "listers/apps/v1beta2", - "listers/auditregistration/v1alpha1", - "listers/autoscaling/v1", - "listers/autoscaling/v2beta1", - "listers/autoscaling/v2beta2", - "listers/batch/v1", - "listers/batch/v1beta1", - "listers/batch/v2alpha1", - "listers/certificates/v1beta1", - "listers/coordination/v1", - "listers/coordination/v1beta1", - "listers/core/v1", - "listers/events/v1beta1", - "listers/extensions/v1beta1", - "listers/networking/v1", - "listers/networking/v1beta1", - "listers/node/v1alpha1", - "listers/node/v1beta1", - "listers/policy/v1beta1", - "listers/rbac/v1", - "listers/rbac/v1alpha1", - "listers/rbac/v1beta1", - "listers/scheduling/v1", - "listers/scheduling/v1alpha1", - "listers/scheduling/v1beta1", - "listers/settings/v1alpha1", - "listers/storage/v1", - "listers/storage/v1alpha1", - "listers/storage/v1beta1", - "pkg/apis/clientauthentication", - "pkg/apis/clientauthentication/v1alpha1", - "pkg/apis/clientauthentication/v1beta1", - "pkg/version", - "plugin/pkg/client/auth/exec", - "rest", - "rest/watch", - "tools/auth", - "tools/cache", - "tools/clientcmd", - "tools/clientcmd/api", - "tools/clientcmd/api/latest", - "tools/clientcmd/api/v1", - "tools/metrics", - "tools/pager", - "tools/record", - "tools/record/util", - "tools/reference", - "tools/remotecommand", - "transport", - "transport/spdy", - "util/cert", - "util/connrotation", - "util/exec", - "util/flowcontrol", - "util/homedir", - "util/keyutil", - "util/retry", - "util/workqueue", - ] - pruneopts = "UT" - revision = "1d2e9628a1ee6507042cfabffbe1212923cbc8d4" - -[[projects]] - branch = "master" - digest = "1:71268145ab882411833bd0546fa0c9b98d34ad83d173a3a0c35c989b5d53afe5" - name = "k8s.io/cloud-provider" - packages = ["."] - pruneopts = "UT" - revision = "029ecc113e6d819f75bde3705b0ff3fafb52d397" - -[[projects]] - digest = "1:c696379ad201c1e86591785579e16bf6cf886c362e9a7534e8eb0d1028b20582" - name = "k8s.io/klog" - packages = ["."] - pruneopts = "UT" - revision = "e531227889390a39d9533dde61f590fe9f4b0035" - version = "v0.3.0" - -[[projects]] - digest = "1:03a96603922fc1f6895ae083e1e16d943b55ef0656b56965351bd87e7d90485f" - name = "k8s.io/kube-openapi" - packages = ["pkg/util/proto"] - pruneopts = "UT" - revision = "b3a7cee44a30" - -[[projects]] - digest = "1:a86c5cf93e7fc06975cbcd13be409c044c9d57c46b44ebc340b93a8699cfc88c" - name = "k8s.io/kubernetes" - packages = [ - "pkg/api/legacyscheme", - "pkg/kubelet/apis/cri/runtime/v1alpha2", - "pkg/kubelet/container", - "pkg/kubelet/util/format", - "pkg/kubelet/util/sliceutils", - "pkg/util/hash", - "pkg/util/mount", - "pkg/volume", - "pkg/volume/util/fs", - "pkg/volume/util/recyclerclient", - "pkg/volume/util/subpath", - "third_party/forked/golang/expansion", - ] - pruneopts = "UT" - revision = "b7394102d6ef778017f2ca4046abbaa23b88c290" - version = "v1.14.1" - -[[projects]] - digest = "1:60028ab0f1ac0a17d6f193b14dc33a9282e48a4ea9583f86db98fd8f5ca0dfb8" - name = "k8s.io/utils" - packages = [ - "buffer", - "exec", - "integer", - "io", - "keymutex", - "nsenter", - "path", - "trace", - ] - pruneopts = "UT" - revision = "c2654d5206da" - -[[projects]] - digest = "1:7719608fe0b52a4ece56c2dde37bedd95b938677d1ab0f84b8a7852e4c59f849" - name = "sigs.k8s.io/yaml" - packages = ["."] - pruneopts = "UT" - revision = "fd68e9863619f6ec2fdd8625fe1f02e7c877e480" - version = "v1.1.0" - -[solve-meta] - analyzer-name = "dep" - analyzer-version = 1 - input-imports = [ - "github.com/pkg/errors", - "gopkg.in/go-playground/pool.v3", - "k8s.io/api/core/v1", - "k8s.io/api/extensions/v1beta1", - "k8s.io/apimachinery/pkg/apis/meta/v1", - "k8s.io/apimachinery/pkg/fields", - "k8s.io/apimachinery/pkg/labels", - "k8s.io/apimachinery/pkg/runtime", - "k8s.io/apimachinery/pkg/util/runtime", - "k8s.io/apimachinery/pkg/util/wait", - "k8s.io/apimachinery/pkg/version", - "k8s.io/client-go/kubernetes", - "k8s.io/client-go/rest", - "k8s.io/client-go/tools/cache", - "k8s.io/client-go/tools/clientcmd", - "k8s.io/client-go/util/workqueue", - "k8s.io/klog", - "k8s.io/kubernetes/pkg/kubelet/util/sliceutils", - ] - solver-name = "gps-cdcl" - solver-version = 1 diff --git a/Gopkg.toml b/Gopkg.toml deleted file mode 100644 index 3855d80..0000000 --- a/Gopkg.toml +++ /dev/null @@ -1,46 +0,0 @@ -# Gopkg.toml example -# -# Refer to https://golang.github.io/dep/docs/Gopkg.toml.html -# for detailed Gopkg.toml documentation. -# -# required = ["github.com/user/thing/cmd/thing"] -# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"] -# -# [[constraint]] -# name = "github.com/user/project" -# version = "1.0.0" -# -# [[constraint]] -# name = "github.com/user/project2" -# branch = "dev" -# source = "github.com/myfork/project2" -# -# [[override]] -# name = "github.com/x/y" -# version = "2.4.0" -# -# [prune] -# non-go = false -# go-tests = true -# unused-packages = true - - -[[constraint]] - branch = "master" - name = "k8s.io/api" - -[[constraint]] - branch = "master" - name = "k8s.io/client-go" - -[[constraint]] - name = "k8s.io/klog" - version = "0.3.0" - -[[constraint]] - name = "k8s.io/kubernetes" - version = "1.14.1" - -[prune] - go-tests = true - unused-packages = true diff --git a/cmd/caddy/main.go b/cmd/caddy/main.go index 94859b6..1a33496 100644 --- a/cmd/caddy/main.go +++ b/cmd/caddy/main.go @@ -1,6 +1,8 @@ package main import ( + "fmt" + "net/http" "time" "bitbucket.org/lightcodelabs/ingress/internal/controller" @@ -48,8 +50,9 @@ func main() { // start ingress controller c := controller.NewCaddyController(kubeClient, restClient, cfg) - // TODO :- health metrics // create http server to expose controller health metrics + healthPort := 9090 + go startMetricsServer(healthPort) klog.Info("Starting the caddy ingress controller") @@ -62,6 +65,44 @@ func main() { select {} } +type healthChecker struct{} + +func (h *healthChecker) Name() string { + return "caddy-ingress-controller" +} + +func (h *healthChecker) Check(_ *http.Request) error { + return nil +} + +func startMetricsServer(port int) { + mux := http.NewServeMux() + + // reg := prometheus.NewRegistry() + + // reg.MustRegister(prometheus.NewGoCollector()) + // reg.MustRegister(prometheus.NewProcessCollector(prometheus.ProcessCollectorOpts{ + // PidFn: func() (int, error) { return os.Getpid(), nil }, + // ReportErrors: true, + // })) + + // // healthz.InstallHandler(mux, + // // healthz.PingHealthz, + // // healthChecker, + // // ) + + server := &http.Server{ + Addr: fmt.Sprintf(":%v", port), + Handler: mux, + ReadTimeout: 10 * time.Second, + ReadHeaderTimeout: 10 * time.Second, + WriteTimeout: 300 * time.Second, + IdleTimeout: 120 * time.Second, + } + + klog.Fatal(server.ListenAndServe()) +} + // createApiserverClient creates a new Kubernetes REST client. We assume the // controller runs inside Kubernetes and use the in-cluster config. func createApiserverClient() (*kubernetes.Clientset, error) { @@ -81,7 +122,7 @@ func createApiserverClient() (*kubernetes.Clientset, error) { return nil, err } - // The client may fail to connect to the API server in the first request + // The client may fail to connect to the API server on the first request defaultRetry := wait.Backoff{ Steps: 10, Duration: 1 * time.Second, diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..c25d3fd --- /dev/null +++ b/go.mod @@ -0,0 +1,22 @@ +module bitbucket.org/lightcodelabs/ingress + +go 1.12 + +require ( + bitbucket.org/lightcodelabs/caddy2 v0.0.0-00010101000000-000000000000 + github.com/imdario/mergo v0.3.7 // indirect + github.com/mholt/certmagic v0.5.1 + github.com/pkg/errors v0.8.1 + golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect + google.golang.org/grpc v1.20.1 // indirect + gopkg.in/go-playground/pool.v3 v3.1.1 + k8s.io/api 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h1:VBM/0P5TWxwk+Nw6Z+lAw3DKgO76g90ETOiA6rfLV1Y= +k8s.io/utils v0.0.0-20190506122338-8fab8cb257d5/go.mod h1:sZAwmy6armz5eXlNoLmJcl4F1QuKu7sr+mFQ0byX7Ew= +sigs.k8s.io/structured-merge-diff v0.0.0-20190302045857-e85c7b244fd2/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI= +sigs.k8s.io/yaml v1.1.0 h1:4A07+ZFc2wgJwo8YNlQpr1rVlgUDlxXHhPJciaPY5gs= +sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o= diff --git a/internal/controller/action.go b/internal/controller/action.go index 9e4fc55..e6128bb 100644 --- a/internal/controller/action.go +++ b/internal/controller/action.go @@ -74,9 +74,6 @@ func (r ResourceAddedAction) handle(c *CaddyController) error { return err } - // js, _ := json.MarshalIndent(c.resourceStore.CaddyConfig, "", " ") - // fmt.Printf("\n%v\n", string(js)) - // ensure that ingress source is updated to point to this ingress controller's ip err = c.syncStatus([]*v1beta1.Ingress{ing}) if err != nil { diff --git a/internal/controller/controller.go b/internal/controller/controller.go index 88a3bda..03dd7de 100644 --- a/internal/controller/controller.go +++ b/internal/controller/controller.go @@ -29,7 +29,7 @@ import ( _ "bitbucket.org/lightcodelabs/caddy2/modules/caddyhttp" _ "bitbucket.org/lightcodelabs/caddy2/modules/caddyhttp/caddylog" _ "bitbucket.org/lightcodelabs/caddy2/modules/caddyhttp/staticfiles" - _ "bitbucket.org/lightcodelabs/proxy" + _ "bitbucket.org/lightcodelabs/caddy2/modules/caddyhttp/reverseproxy" ) const ( @@ -108,30 +108,6 @@ func (c *CaddyController) Shutdown() error { return nil } -// handleErrs reports errors received from queue actions. -func (c *CaddyController) handleErr(err error, action interface{}) { - klog.Error(err) -} - -func (c *CaddyController) reloadCaddy() error { - j, err := json.Marshal(c.resourceStore.CaddyConfig) - if err != nil { - return err - } - - // post to load endpoint - resp, err := http.Post("http://127.0.0.1:1234/load", "application/json", bytes.NewBuffer(j)) - if err != nil { - return err - } - - if resp.StatusCode != http.StatusOK { - return errors.New("could not reload caddy config") - } - - return nil -} - // Run method starts the ingress controller. func (c *CaddyController) Run(stopCh chan struct{}) { err := c.reloadCaddy() @@ -172,13 +148,13 @@ func (c *CaddyController) Run(stopCh chan struct{}) { os.Exit(exitCode) } -// process items in the event queue +// runWorker processes items in the event queue. func (c *CaddyController) runWorker() { for c.processNextItem() { } } -// if there is an ingress item in the event queue process it +// processNextItem determines if there is an ingress item in the event queue and processes it. func (c *CaddyController) processNextItem() bool { // Wait until there is a new item in the working queue action, quit := c.syncQueue.Get() @@ -199,3 +175,28 @@ func (c *CaddyController) processNextItem() bool { return true } + +// handleErrs reports errors received from queue actions. +func (c *CaddyController) handleErr(err error, action interface{}) { + klog.Error(err) +} + +// reloadCaddy reloads the internal caddy instance with new config. +func (c *CaddyController) reloadCaddy() error { + j, err := json.Marshal(c.resourceStore.CaddyConfig) + if err != nil { + return err + } + + // post to load endpoint + resp, err := http.Post("http://127.0.0.1:1234/load", "application/json", bytes.NewBuffer(j)) + if err != nil { + return err + } + + if resp.StatusCode != http.StatusOK { + return errors.New("could not reload caddy config") + } + + return nil +} diff --git a/internal/controller/ingress.go b/internal/controller/ingress.go index 5be5957..715edfc 100644 --- a/internal/controller/ingress.go +++ b/internal/controller/ingress.go @@ -84,7 +84,7 @@ func ingressSliceEqual(lhs, rhs []apiv1.LoadBalancerIngress) bool { return true } -// lessLoadBalancerIngress is a sorting function +// lessLoadBalancerIngress is a sorting function for ingress hostnames. func lessLoadBalancerIngress(addrs []apiv1.LoadBalancerIngress) func(int, int) bool { return func(a, b int) bool { switch strings.Compare(addrs[a].Hostname, addrs[b].Hostname) { diff --git a/internal/controller/status.go b/internal/controller/status.go index 2d52b57..2978e13 100644 --- a/internal/controller/status.go +++ b/internal/controller/status.go @@ -15,10 +15,11 @@ func (c *CaddyController) dispatchSync() { c.syncQueue.Add(SyncStatusAction{}) } -// SyncStatusAction provides an implementation of the action interface +// SyncStatusAction provides an implementation of the action interface. type SyncStatusAction struct { } +// handle is run when a syncStatusAction appears in the queue. func (r SyncStatusAction) handle(c *CaddyController) error { return c.syncStatus(c.resourceStore.Ingresses) } @@ -30,7 +31,10 @@ func (c *CaddyController) syncStatus(ings []*v1beta1.Ingress) error { return err } + // this happens about every 30 seconds and can pollute the logs, so we + // only want to log on higher verbosity levels. klog.V(2).Info("Synching Ingress resource source addresses") + c.updateIngStatuses(sliceToLoadBalancerIngress(addrs), ings) return nil diff --git a/internal/pod/pod.go b/internal/pod/pod.go index cd6df21..84ec880 100644 --- a/internal/pod/pod.go +++ b/internal/pod/pod.go @@ -12,7 +12,7 @@ import ( "k8s.io/kubernetes/pkg/kubelet/util/sliceutils" ) -// Info contains runtime information about the pod running the Ingres controller +// Info contains runtime information about the pod running the Ingress controller type Info struct { Name string Namespace string @@ -21,6 +21,8 @@ type Info struct { Labels map[string]string } +// GetAddresses gets the ip address or name of the node in the cluster that the +// ingress controller is running on. func GetAddresses(p *Info, kubeClient *kubernetes.Clientset) ([]string, error) { addrs := []string{}