From fce1d62e0cb7c6cfb92322fcec5b323d877e95df Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Juraci=20Paix=C3=A3o=20Kr=C3=B6hling?= Date: Wed, 28 Aug 2019 17:57:44 +0200 Subject: [PATCH] Initial prototype MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Juraci Paixão Kröhling --- .gitignore | 77 +++ CONTRIBUTING.md | 61 ++ LICENSE | 201 +++++++ Makefile | 88 +++ README.md | 63 ++ build/Dockerfile | 15 + build/bin/entrypoint | 12 + build/bin/user_setup | 13 + cmd/manager/main.go | 181 ++++++ ...etry_v1alpha1_opentelemetryservice_cr.yaml | 6 + ...try_v1alpha1_opentelemetryservice_crd.yaml | 57 ++ ...operator.v0.0.1.clusterserviceversion.yaml | 127 ++++ ...try_v1alpha1_opentelemetryservice_crd.yaml | 38 ++ .../opentelemetry-operator.package.yaml | 5 + deploy/operator.yaml | 32 + deploy/role.yaml | 61 ++ deploy/role_binding.yaml | 11 + deploy/service_account.yaml | 4 + examples/simplest.yaml | 20 + go.mod | 35 ++ go.sum | 546 ++++++++++++++++++ .../addtoscheme_opentelemetry_v1alpha1.go | 10 + pkg/apis/apis.go | 13 + pkg/apis/opentelemetry/const.go | 13 + pkg/apis/opentelemetry/group.go | 6 + pkg/apis/opentelemetry/v1alpha1/doc.go | 4 + .../v1alpha1/opentelemetryservice_types.go | 52 ++ pkg/apis/opentelemetry/v1alpha1/register.go | 19 + .../v1alpha1/zz_generated.deepcopy.go | 107 ++++ .../v1alpha1/zz_generated.openapi.go | 106 ++++ pkg/controller/add_opentelemetryservice.go | 10 + pkg/controller/controller.go | 18 + pkg/controller/opentelemetryservice/labels.go | 25 + .../opentelemetryservice_controller.go | 58 ++ .../opentelemetryservice/reconcile.go | 79 +++ .../reconcile_configmap.go | 59 ++ .../reconcile_deployment.go | 95 +++ .../opentelemetryservice/reconcile_service.go | 68 +++ tools.go | 7 + version/version.go | 9 + 40 files changed, 2411 insertions(+) create mode 100644 .gitignore create mode 100644 CONTRIBUTING.md create mode 100644 LICENSE create mode 100644 Makefile create mode 100644 README.md create mode 100644 build/Dockerfile create mode 100755 build/bin/entrypoint create mode 100755 build/bin/user_setup create mode 100644 cmd/manager/main.go create mode 100644 deploy/crds/opentelemetry_v1alpha1_opentelemetryservice_cr.yaml create mode 100644 deploy/crds/opentelemetry_v1alpha1_opentelemetryservice_crd.yaml create mode 100644 deploy/olm-catalog/opentelemetry-operator/0.0.1/opentelemetry-operator.v0.0.1.clusterserviceversion.yaml create mode 100644 deploy/olm-catalog/opentelemetry-operator/0.0.1/opentelemetry_v1alpha1_opentelemetryservice_crd.yaml create mode 100644 deploy/olm-catalog/opentelemetry-operator/opentelemetry-operator.package.yaml create mode 100644 deploy/operator.yaml create mode 100644 deploy/role.yaml create mode 100644 deploy/role_binding.yaml create mode 100644 deploy/service_account.yaml create mode 100644 examples/simplest.yaml create mode 100644 go.mod create mode 100644 go.sum create mode 100644 pkg/apis/addtoscheme_opentelemetry_v1alpha1.go create mode 100644 pkg/apis/apis.go create mode 100644 pkg/apis/opentelemetry/const.go create mode 100644 pkg/apis/opentelemetry/group.go create mode 100644 pkg/apis/opentelemetry/v1alpha1/doc.go create mode 100644 pkg/apis/opentelemetry/v1alpha1/opentelemetryservice_types.go create mode 100644 pkg/apis/opentelemetry/v1alpha1/register.go create mode 100644 pkg/apis/opentelemetry/v1alpha1/zz_generated.deepcopy.go create mode 100644 pkg/apis/opentelemetry/v1alpha1/zz_generated.openapi.go create mode 100644 pkg/controller/add_opentelemetryservice.go create mode 100644 pkg/controller/controller.go create mode 100644 pkg/controller/opentelemetryservice/labels.go create mode 100644 pkg/controller/opentelemetryservice/opentelemetryservice_controller.go create mode 100644 pkg/controller/opentelemetryservice/reconcile.go create mode 100644 pkg/controller/opentelemetryservice/reconcile_configmap.go create mode 100644 pkg/controller/opentelemetryservice/reconcile_deployment.go create mode 100644 pkg/controller/opentelemetryservice/reconcile_service.go create mode 100644 tools.go create mode 100644 version/version.go diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000000..7c504700dc --- /dev/null +++ b/.gitignore @@ -0,0 +1,77 @@ +# Temporary Build Files +build/_output +build/_test +# Created by https://www.gitignore.io/api/go,vim,emacs,visualstudiocode +### Emacs ### +# -*- mode: gitignore; -*- +*~ +\#*\# +/.emacs.desktop +/.emacs.desktop.lock +*.elc +auto-save-list +tramp +.\#* +# Org-mode +.org-id-locations +*_archive +# flymake-mode +*_flymake.* +# eshell files +/eshell/history +/eshell/lastdir +# elpa packages +/elpa/ +# reftex files +*.rel +# AUCTeX auto folder +/auto/ +# cask packages +.cask/ +dist/ +# Flycheck +flycheck_*.el +# server auth directory +/server/ +# projectiles files +.projectile +projectile-bookmarks.eld +# directory configuration +.dir-locals.el +# saveplace +places +# url cache +url/cache/ +# cedet +ede-projects.el +# smex +smex-items +# company-statistics +company-statistics-cache.el +# anaconda-mode +anaconda-mode/ +### Go ### +# Binaries for programs and plugins +*.exe +*.exe~ +*.dll +*.so +*.dylib +# Test binary, build with 'go test -c' +*.test +# Output of the go coverage tool, specifically when used with LiteIDE +*.out +### Vim ### +# swap +.sw[a-p] +.*.sw[a-p] +# session +Session.vim +# temporary +.netrwhist +# auto-generated tag files +tags +### VisualStudioCode ### +.vscode/* +.history +# End of https://www.gitignore.io/api/go,vim,emacs,visualstudiocode diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md new file mode 100644 index 0000000000..1e8ff48c75 --- /dev/null +++ b/CONTRIBUTING.md @@ -0,0 +1,61 @@ +# How to Contribute to the OpenTelemetry Operator for Kubernetes + +We'd love your help! + +This project is [Apache 2.0 licensed](LICENSE) and accepts contributions via GitHub pull requests. This document outlines some of the conventions on development workflow, commit message formatting, contact points and other resources to make it easier to get your contribution accepted. + +We gratefully welcome improvements to documentation as well as to code. + +## Certificate of Origin + +By contributing to this project you agree to the [Developer Certificate of Origin](https://developercertificate.org/) (DCO). This document was created by the Linux Kernel community and is a simple statement that you, as a contributor, have the legal right to make the contribution. See the [DCO](DCO) file for details. + +## Getting Started + +This project is a regular [Kubernetes Operator](https://coreos.com/operators/) built using the Operator SDK. Refer to the Operator SDK documentation to understand the basic architecture of this operator. + +### Installing the Operator SDK command line tool + +Follow the installation guidelines from [Operator SDK GitHub page](https://github.com/operator-framework/operator-sdk). + +### Developing + +As usual for operators following the Operator SDK in recent versions, the dependencies are managed using [`go modules`](https://golang.org/doc/go1.11#modules). Refer to that project's documentation for instructions on how to add or update dependencies. + +The first step is to get a local Kubernetes instance up and running. The recommended approach is using `minikube`. Refer to the Kubernetes' [documentation](https://kubernetes.io/docs/tasks/tools/install-minikube/) for instructions on how to install it. + +Once `minikube` is installed, it can be started with: + +``` +minikube start +``` + +NOTE: Make sure to read the documentation to learn the performance switches that can be applied to your platform. + +Once minikube has finished starting, get the Operator running: + +``` +make run +``` + +At this point, a Jaeger instance can be installed: + +``` +kubectl apply -f deploy/examples/simplest.yaml +kubectl get otelsvcs +kubectl get pods +``` + +To remove the instance: + +``` +kubectl delete -f deploy/examples/simplest.yaml +``` + +#### Model changes + +The Operator SDK generates the `pkg/apis/opentelemetry/v1alpha1//zz_generated.*.go` files via the command `make generate`. This should be executed whenever there's a model change (`pkg/apis/opentelemetry/v1alpha1//opentelemetryservice_types.go`) + +#### Tests + +Right now, there are no tests on this repo yet. This will change really soon. \ No newline at end of file diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000000..261eeb9e9f --- /dev/null +++ b/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/Makefile b/Makefile new file mode 100644 index 0000000000..91e0e0caf6 --- /dev/null +++ b/Makefile @@ -0,0 +1,88 @@ +OPERATOR_NAME ?= opentelemetry-operator +OPERATOR_VERSION ?= "$(shell git describe --tags)" +VERSION_DATE ?= $(shell date -u +'%Y-%m-%dT%H:%M:%SZ') + +GO_FLAGS ?= GOOS=linux GOARCH=amd64 CGO_ENABLED=0 GO111MODULE=on +KUBERNETES_CONFIG ?= "$(HOME)/.kube/config" +WATCH_NAMESPACE ?= "" +BIN_DIR ?= "build/_output/bin" + +NAMESPACE ?= "$(USER)" +BUILD_IMAGE ?= "$(NAMESPACE)/$(OPERATOR_NAME):latest" +OUTPUT_BINARY ?= "$(BIN_DIR)/$(OPERATOR_NAME)" +VERSION_PKG ?= "github.com/open-telemetry/opentelemetry-operator/version" +LD_FLAGS ?= "-X=$(VERSION_PKG).Version=$(OPERATOR_VERSION)" + +PACKAGES := $(shell go list ./cmd/... ./pkg/...) + +.DEFAULT_GOAL := build + +.PHONY: check +check: + @echo Checking... + @go fmt $(PACKAGES) > $(FMT_LOG) + +.PHONY: ensure-generate-is-noop +ensure-generate-is-noop: generate + @git diff -s --exit-code pkg/apis/opentelemetry/v1alpha1/zz_generated.*.go || (echo "Build failed: a model has been changed but the deep copy functions aren't up to date. Run 'make generate' and update your PR." && exit 1) + +.PHONY: format +format: + @echo Formatting code... + @go fmt $(PACKAGES) + +.PHONY: lint +lint: + @echo Linting... + @$(GOPATH)/bin/golint -set_exit_status=1 $(PACKAGES) + +.PHONY: security +security: + @echo Security... + @$(GOPATH)/bin/gosec -quiet $(PACKAGES) 2>/dev/null + +.PHONY: build +build: format + @echo Building... + @operator-sdk build ${BUILD_IMAGE} --go-build-args "-ldflags ${LD_FLAGS}" + +.PHONY: run +run: crd + @operator-sdk up local OPERATOR_NAME=$(OPERATOR_NAME) --go-ldflags "-X $(VERSION_PKG).Version=$(OPERATOR_VERSION) -X $(VERSION_PKG).BuildDate=$(VERSION_DATE)" + +.PHONY: run-debug +run-debug: crd + @operator-sdk up local --operator-flags "--log-level=debug" OPERATOR_NAME=$(OPERATOR_NAME) + +.PHONY: clean +clean: + @echo Cleaning... + +.PHONY: crd +crd: + @kubectl create -f deploy/crds/opentelemetry_v1alpha1_opentelemetryservice_crd.yaml 2>&1 | grep -v "already exists" || true + +.PHONY: generate +generate: + @operator-sdk generate k8s + @operator-sdk generate openapi + +.PHONY: test +test: + @echo Running tests... + +.PHONY: all +all: check format lint security build test + +.PHONY: ci +ci: ensure-generate-is-noop all + +.PHONY: scorecard +scorecard: + @operator-sdk scorecard --cr-manifest deploy/examples/simplest.yaml --csv-path deploy/olm-catalog/jaeger.clusterserviceversion.yaml --init-timeout 30 + +.PHONY: install-tools +install-tools: + @go get -u \ + golang.org/x/lint/golint \ + github.com/securego/gosec/cmd/gosec diff --git a/README.md b/README.md new file mode 100644 index 0000000000..4b8fe9dbf3 --- /dev/null +++ b/README.md @@ -0,0 +1,63 @@ +[![Go Report Card][goreport-img]][goreport] [![GoDoc][godoc-img]][godoc] + +# OpenTelemetry Operator for Kubernetes + +The OpenTelemetry Operator is an implementation of a [Kubernetes Operator](https://coreos.com/operators/). + +At this point, it has [OpenTelemetry Service](https://github.com/open-telemetry/opentelemetry-service) as the only managed component. + +## Getting started + +To install the operator, run: +``` +kubectl create -f https://raw.githubusercontent.com/jpkrohling/opentelemetry-operator/master/deploy/crds/opentelemetry_v1alpha1_opentelemetryservice_crd.yaml +kubectl create -f https://raw.githubusercontent.com/jpkrohling/opentelemetry-operator/master/deploy/service_account.yaml +kubectl create -f https://raw.githubusercontent.com/jpkrohling/opentelemetry-operator/master/deploy/role.yaml +kubectl create -f https://raw.githubusercontent.com/jpkrohling/opentelemetry-operator/master/deploy/role_binding.yaml +kubectl create -f https://raw.githubusercontent.com/jpkrohling/opentelemetry-operator/master/deploy/operator.yaml +``` + +Once the `opentelemetry-operator` deployment is ready, create an OpenTelemetry Service (otelsvc) instance, like: + +``` +kubectl apply -f - </dev/null; then + if [ -w /etc/passwd ]; then + echo "${USER_NAME:-opentelemetry-operator}:x:$(id -u):$(id -g):${USER_NAME:-opentelemetry-operator} user:${HOME}:/sbin/nologin" >> /etc/passwd + fi +fi + +exec ${OPERATOR} $@ diff --git a/build/bin/user_setup b/build/bin/user_setup new file mode 100755 index 0000000000..1e36064cbf --- /dev/null +++ b/build/bin/user_setup @@ -0,0 +1,13 @@ +#!/bin/sh +set -x + +# ensure $HOME exists and is accessible by group 0 (we don't know what the runtime UID will be) +mkdir -p ${HOME} +chown ${USER_UID}:0 ${HOME} +chmod ug+rwx ${HOME} + +# runtime user will need to be able to self-insert in /etc/passwd +chmod g+rw /etc/passwd + +# no need for this script to remain in the image after running +rm $0 diff --git a/cmd/manager/main.go b/cmd/manager/main.go new file mode 100644 index 0000000000..6d215fb437 --- /dev/null +++ b/cmd/manager/main.go @@ -0,0 +1,181 @@ +package main + +import ( + "context" + "flag" + "fmt" + "os" + "runtime" + + // Import all Kubernetes client auth plugins (e.g. Azure, GCP, OIDC, etc.) + _ "k8s.io/client-go/plugin/pkg/client/auth" + "k8s.io/client-go/rest" + + "github.com/operator-framework/operator-sdk/pkg/k8sutil" + kubemetrics "github.com/operator-framework/operator-sdk/pkg/kube-metrics" + "github.com/operator-framework/operator-sdk/pkg/leader" + "github.com/operator-framework/operator-sdk/pkg/log/zap" + "github.com/operator-framework/operator-sdk/pkg/metrics" + "github.com/operator-framework/operator-sdk/pkg/restmapper" + sdkVersion "github.com/operator-framework/operator-sdk/version" + "github.com/spf13/pflag" + v1 "k8s.io/api/core/v1" + "k8s.io/apimachinery/pkg/util/intstr" + "sigs.k8s.io/controller-runtime/pkg/client/config" + "sigs.k8s.io/controller-runtime/pkg/manager" + logf "sigs.k8s.io/controller-runtime/pkg/runtime/log" + "sigs.k8s.io/controller-runtime/pkg/runtime/signals" + + "github.com/open-telemetry/opentelemetry-operator/pkg/apis" + "github.com/open-telemetry/opentelemetry-operator/pkg/controller" + "github.com/open-telemetry/opentelemetry-operator/version" +) + +// Change below variables to serve metrics on different host or port. +var ( + metricsHost = "0.0.0.0" + metricsPort int32 = 8383 + operatorMetricsPort int32 = 8686 +) +var log = logf.Log.WithName("cmd") + +func printVersion() { + log.Info("Starting the OpenTelemetry Operator", + "opentelemetry-operator", version.Version, + "build-date", version.BuildDate, + "go-version", runtime.Version(), + "go-arch", runtime.GOARCH, + "go-os", runtime.GOOS, + "operator-sdk-version", sdkVersion.Version, + ) +} + +func main() { + // Add the zap logger flag set to the CLI. The flag set must + // be added before calling pflag.Parse(). + pflag.CommandLine.AddFlagSet(zap.FlagSet()) + + // Add flags registered by imported packages (e.g. glog and + // controller-runtime) + pflag.CommandLine.AddGoFlagSet(flag.CommandLine) + + pflag.Parse() + + // Use a zap logr.Logger implementation. If none of the zap + // flags are configured (or if the zap flag set is not being + // used), this defaults to a production zap logger. + // + // The logger instantiated here can be changed to any logger + // implementing the logr.Logger interface. This logger will + // be propagated through the whole operator, generating + // uniform and structured logs. + logf.SetLogger(zap.Logger()) + + printVersion() + + namespace, err := k8sutil.GetWatchNamespace() + if err != nil { + log.Error(err, "Failed to get watch namespace") + os.Exit(1) + } + + // Get a config to talk to the apiserver + cfg, err := config.GetConfig() + if err != nil { + log.Error(err, "") + os.Exit(1) + } + + ctx := context.TODO() + // Become the leader before proceeding + err = leader.Become(ctx, "opentelemetry-operator-lock") + if err != nil { + log.Error(err, "") + os.Exit(1) + } + + // Create a new Cmd to provide shared dependencies and start components + mgr, err := manager.New(cfg, manager.Options{ + Namespace: namespace, + MapperProvider: restmapper.NewDynamicRESTMapper, + MetricsBindAddress: fmt.Sprintf("%s:%d", metricsHost, metricsPort), + }) + if err != nil { + log.Error(err, "") + os.Exit(1) + } + + log.Info("Registering Components.") + + // Setup Scheme for all resources + if err := apis.AddToScheme(mgr.GetScheme()); err != nil { + log.Error(err, "") + os.Exit(1) + } + + // Setup all Controllers + if err := controller.AddToManager(mgr); err != nil { + log.Error(err, "") + os.Exit(1) + } + + if err = serveCRMetrics(cfg); err != nil { + log.Info("Could not generate and serve custom resource metrics", "error", err.Error()) + } + + // Add to the below struct any other metrics ports you want to expose. + servicePorts := []v1.ServicePort{ + {Port: metricsPort, Name: metrics.OperatorPortName, Protocol: v1.ProtocolTCP, TargetPort: intstr.IntOrString{Type: intstr.Int, IntVal: metricsPort}}, + {Port: operatorMetricsPort, Name: metrics.CRPortName, Protocol: v1.ProtocolTCP, TargetPort: intstr.IntOrString{Type: intstr.Int, IntVal: operatorMetricsPort}}, + } + // Create Service object to expose the metrics port(s). + service, err := metrics.CreateMetricsService(ctx, cfg, servicePorts) + if err != nil { + log.Info("Could not create metrics Service", "error", err.Error()) + } + + // CreateServiceMonitors will automatically create the prometheus-operator ServiceMonitor resources + // necessary to configure Prometheus to scrape metrics from this operator. + services := []*v1.Service{service} + _, err = metrics.CreateServiceMonitors(cfg, namespace, services) + if err != nil { + log.Info("Could not create ServiceMonitor object", "error", err.Error()) + // If this operator is deployed to a cluster without the prometheus-operator running, it will return + // ErrServiceMonitorNotPresent, which can be used to safely skip ServiceMonitor creation. + if err == metrics.ErrServiceMonitorNotPresent { + log.Info("Install prometheus-operator in your cluster to create ServiceMonitor objects", "error", err.Error()) + } + } + + log.Info("Starting the Cmd.") + + // Start the Cmd + if err := mgr.Start(signals.SetupSignalHandler()); err != nil { + log.Error(err, "Manager exited non-zero") + os.Exit(1) + } +} + +// serveCRMetrics gets the Operator/CustomResource GVKs and generates metrics based on those types. +// It serves those metrics on "http://metricsHost:operatorMetricsPort". +func serveCRMetrics(cfg *rest.Config) error { + // Below function returns filtered operator/CustomResource specific GVKs. + // For more control override the below GVK list with your own custom logic. + filteredGVK, err := k8sutil.GetGVKsFromAddToScheme(apis.AddToScheme) + if err != nil { + return err + } + // Get the namespace the operator is currently deployed in. + operatorNs, err := k8sutil.GetOperatorNamespace() + if err != nil { + return err + } + // To generate metrics in other namespaces, add the values below. + ns := []string{operatorNs} + // Generate and serve custom resource specific metrics. + err = kubemetrics.GenerateAndServeCRMetrics(cfg, ns, filteredGVK, metricsHost, operatorMetricsPort) + if err != nil { + return err + } + return nil +} diff --git a/deploy/crds/opentelemetry_v1alpha1_opentelemetryservice_cr.yaml b/deploy/crds/opentelemetry_v1alpha1_opentelemetryservice_cr.yaml new file mode 100644 index 0000000000..ecc0cb9f0b --- /dev/null +++ b/deploy/crds/opentelemetry_v1alpha1_opentelemetryservice_cr.yaml @@ -0,0 +1,6 @@ +apiVersion: opentelemetry.io/v1alpha1 +kind: OpenTelemetryService +metadata: + name: example-opentelemetryservice +spec: + replicas: 3 diff --git a/deploy/crds/opentelemetry_v1alpha1_opentelemetryservice_crd.yaml b/deploy/crds/opentelemetry_v1alpha1_opentelemetryservice_crd.yaml new file mode 100644 index 0000000000..9ede510b15 --- /dev/null +++ b/deploy/crds/opentelemetry_v1alpha1_opentelemetryservice_crd.yaml @@ -0,0 +1,57 @@ +apiVersion: apiextensions.k8s.io/v1beta1 +kind: CustomResourceDefinition +metadata: + name: opentelemetryservices.opentelemetry.io +spec: + group: opentelemetry.io + names: + kind: OpenTelemetryService + listKind: OpenTelemetryServiceList + plural: opentelemetryservices + shortNames: + - otelsvc + - otelsvcs + singular: opentelemetryservice + scope: Namespaced + subresources: + scale: + specReplicasPath: .spec.replicas + statusReplicasPath: .status.replicas + status: {} + validation: + openAPIV3Schema: + properties: + apiVersion: + description: 'APIVersion defines the versioned schema of this representation + of an object. Servers should convert recognized schemas to the latest + internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#resources' + type: string + kind: + description: 'Kind is a string value representing the REST resource this + object represents. Servers may infer this from the endpoint the client + submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#types-kinds' + type: string + metadata: + type: object + spec: + properties: + config: + description: +required + type: string + replicas: + format: int32 + type: integer + type: object + status: + properties: + replicas: + format: int32 + type: integer + required: + - replicas + type: object + version: v1alpha1 + versions: + - name: v1alpha1 + served: true + storage: true diff --git a/deploy/olm-catalog/opentelemetry-operator/0.0.1/opentelemetry-operator.v0.0.1.clusterserviceversion.yaml b/deploy/olm-catalog/opentelemetry-operator/0.0.1/opentelemetry-operator.v0.0.1.clusterserviceversion.yaml new file mode 100644 index 0000000000..1348e662c7 --- /dev/null +++ b/deploy/olm-catalog/opentelemetry-operator/0.0.1/opentelemetry-operator.v0.0.1.clusterserviceversion.yaml @@ -0,0 +1,127 @@ +apiVersion: operators.coreos.com/v1alpha1 +kind: ClusterServiceVersion +metadata: + annotations: + alm-examples: '[{"apiVersion":"opentelemetry.io/v1alpha1","kind":"OpenTelemetryService","metadata":{"name":"example-opentelemetryservice"},"spec":{"size":3}}]' + capabilities: Basic Install + name: opentelemetry-operator.v0.0.1 + namespace: placeholder +spec: + apiservicedefinitions: {} + customresourcedefinitions: {} + description: Placeholder description + displayName: Opentelemetry Operator + install: + spec: + deployments: + - name: opentelemetry-operator + spec: + replicas: 1 + selector: + matchLabels: + name: opentelemetry-operator + strategy: {} + template: + metadata: + labels: + name: opentelemetry-operator + spec: + containers: + - command: + - opentelemetry-operator + env: + - name: WATCH_NAMESPACE + valueFrom: + fieldRef: + fieldPath: metadata.annotations['olm.targetNamespaces'] + - name: POD_NAME + valueFrom: + fieldRef: + fieldPath: metadata.name + - name: OPERATOR_NAME + value: opentelemetry-operator + image: REPLACE_IMAGE + imagePullPolicy: Always + name: opentelemetry-operator + resources: {} + serviceAccountName: opentelemetry-operator + permissions: + - rules: + - apiGroups: + - "" + resources: + - pods + - services + - services/finalizers + - endpoints + - persistentvolumeclaims + - events + - configmaps + - secrets + verbs: + - '*' + - apiGroups: + - apps + resources: + - deployments + - daemonsets + - replicasets + - statefulsets + verbs: + - '*' + - apiGroups: + - monitoring.coreos.com + resources: + - servicemonitors + verbs: + - get + - create + - apiGroups: + - apps + resourceNames: + - opentelemetry-operator + resources: + - deployments/finalizers + verbs: + - update + - apiGroups: + - "" + resources: + - pods + verbs: + - get + - apiGroups: + - apps + resources: + - replicasets + verbs: + - get + - apiGroups: + - opentelemetry.io + resources: + - '*' + verbs: + - '*' + serviceAccountName: opentelemetry-operator + strategy: deployment + installModes: + - supported: true + type: OwnNamespace + - supported: true + type: SingleNamespace + - supported: false + type: MultiNamespace + - supported: true + type: AllNamespaces + keywords: + - tracing + - distributed tracing + - monitoring + - troubleshooting + maintainers: + - email: juraci.github@kroehling.de + name: Juraci Paixão Kröhling + maturity: alpha + provider: + name: OpenTelemetry + version: 0.0.1 diff --git a/deploy/olm-catalog/opentelemetry-operator/0.0.1/opentelemetry_v1alpha1_opentelemetryservice_crd.yaml b/deploy/olm-catalog/opentelemetry-operator/0.0.1/opentelemetry_v1alpha1_opentelemetryservice_crd.yaml new file mode 100644 index 0000000000..2a3ebd6c70 --- /dev/null +++ b/deploy/olm-catalog/opentelemetry-operator/0.0.1/opentelemetry_v1alpha1_opentelemetryservice_crd.yaml @@ -0,0 +1,38 @@ +apiVersion: apiextensions.k8s.io/v1beta1 +kind: CustomResourceDefinition +metadata: + name: opentelemetryservices.opentelemetry.io +spec: + group: opentelemetry.io + names: + kind: OpenTelemetryService + listKind: OpenTelemetryServiceList + plural: opentelemetryservices + singular: opentelemetryservice + scope: Namespaced + subresources: + status: {} + validation: + openAPIV3Schema: + properties: + apiVersion: + description: 'APIVersion defines the versioned schema of this representation + of an object. Servers should convert recognized schemas to the latest + internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#resources' + type: string + kind: + description: 'Kind is a string value representing the REST resource this + object represents. Servers may infer this from the endpoint the client + submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#types-kinds' + type: string + metadata: + type: object + spec: + type: object + status: + type: object + version: v1alpha1 + versions: + - name: v1alpha1 + served: true + storage: true diff --git a/deploy/olm-catalog/opentelemetry-operator/opentelemetry-operator.package.yaml b/deploy/olm-catalog/opentelemetry-operator/opentelemetry-operator.package.yaml new file mode 100644 index 0000000000..66206db68d --- /dev/null +++ b/deploy/olm-catalog/opentelemetry-operator/opentelemetry-operator.package.yaml @@ -0,0 +1,5 @@ +channels: +- currentCSV: opentelemetry-operator.v0.0.1 + name: alpha +defaultChannel: alpha +packageName: opentelemetry-operator diff --git a/deploy/operator.yaml b/deploy/operator.yaml new file mode 100644 index 0000000000..e51178805c --- /dev/null +++ b/deploy/operator.yaml @@ -0,0 +1,32 @@ +apiVersion: apps/v1 +kind: Deployment +metadata: + name: opentelemetry-operator +spec: + replicas: 1 + selector: + matchLabels: + name: opentelemetry-operator + template: + metadata: + labels: + name: opentelemetry-operator + spec: + serviceAccountName: opentelemetry-operator + containers: + - name: opentelemetry-operator + image: quay.io/jpkroehling/opentelemetry-operator:latest + command: + - opentelemetry-operator + imagePullPolicy: Always + env: + - name: WATCH_NAMESPACE + valueFrom: + fieldRef: + fieldPath: metadata.namespace + - name: POD_NAME + valueFrom: + fieldRef: + fieldPath: metadata.name + - name: OPERATOR_NAME + value: "opentelemetry-operator" diff --git a/deploy/role.yaml b/deploy/role.yaml new file mode 100644 index 0000000000..11eab3d344 --- /dev/null +++ b/deploy/role.yaml @@ -0,0 +1,61 @@ +apiVersion: rbac.authorization.k8s.io/v1 +kind: Role +metadata: + creationTimestamp: null + name: opentelemetry-operator +rules: +- apiGroups: + - "" + resources: + - pods + - services + - services/finalizers + - endpoints + - persistentvolumeclaims + - events + - configmaps + - secrets + verbs: + - '*' +- apiGroups: + - apps + resources: + - deployments + - daemonsets + - replicasets + - statefulsets + verbs: + - '*' +- apiGroups: + - monitoring.coreos.com + resources: + - servicemonitors + verbs: + - get + - create +- apiGroups: + - apps + resourceNames: + - opentelemetry-operator + resources: + - deployments/finalizers + verbs: + - update +- apiGroups: + - "" + resources: + - pods + verbs: + - get +- apiGroups: + - apps + resources: + - replicasets + verbs: + - get +- apiGroups: + - opentelemetry.io + resources: + - '*' + verbs: + - '*' diff --git a/deploy/role_binding.yaml b/deploy/role_binding.yaml new file mode 100644 index 0000000000..481eff9aff --- /dev/null +++ b/deploy/role_binding.yaml @@ -0,0 +1,11 @@ +kind: RoleBinding +apiVersion: rbac.authorization.k8s.io/v1 +metadata: + name: opentelemetry-operator +subjects: +- kind: ServiceAccount + name: opentelemetry-operator +roleRef: + kind: Role + name: opentelemetry-operator + apiGroup: rbac.authorization.k8s.io diff --git a/deploy/service_account.yaml b/deploy/service_account.yaml new file mode 100644 index 0000000000..f97a12acbf --- /dev/null +++ b/deploy/service_account.yaml @@ -0,0 +1,4 @@ +apiVersion: v1 +kind: ServiceAccount +metadata: + name: opentelemetry-operator diff --git a/examples/simplest.yaml b/examples/simplest.yaml new file mode 100644 index 0000000000..b67d4620c6 --- /dev/null +++ b/examples/simplest.yaml @@ -0,0 +1,20 @@ +apiVersion: opentelemetry.io/v1alpha1 +kind: OpenTelemetryService +metadata: + name: simplest +spec: + config: | + receivers: + jaeger: + + processors: + queued-retry: + + exporters: + logging: + + pipelines: + traces: + receivers: [jaeger] + processors: [queued-retry] + exporters: [logging] diff --git a/go.mod b/go.mod new file mode 100644 index 0000000000..451e4492ab --- /dev/null +++ b/go.mod @@ -0,0 +1,35 @@ +module github.com/open-telemetry/opentelemetry-operator + +require ( + github.com/NYTimes/gziphandler v1.0.1 // indirect + github.com/go-openapi/spec v0.19.0 + github.com/operator-framework/operator-sdk v0.10.1-0.20190827134739-8e55eb7da610 + github.com/spf13/pflag v1.0.3 + gopkg.in/yaml.v2 v2.2.2 + k8s.io/api v0.0.0-20190612125737-db0771252981 + k8s.io/apimachinery v0.0.0-20190612125636-6a5db36e93ad + k8s.io/client-go v11.0.0+incompatible + k8s.io/kube-openapi v0.0.0-20190603182131-db7b694dc208 + sigs.k8s.io/controller-runtime v0.1.12 + sigs.k8s.io/controller-tools v0.1.10 +) + +// Pinned to kubernetes-1.13.4 +replace ( + k8s.io/api => k8s.io/api v0.0.0-20190222213804-5cb15d344471 + k8s.io/apiextensions-apiserver => k8s.io/apiextensions-apiserver v0.0.0-20190228180357-d002e88f6236 + k8s.io/apimachinery => k8s.io/apimachinery v0.0.0-20190221213512-86fb29eff628 + k8s.io/client-go => k8s.io/client-go v0.0.0-20190228174230-b40b2a5939e4 +) + +replace ( + github.com/coreos/prometheus-operator => github.com/coreos/prometheus-operator v0.29.0 + // Pinned to v2.9.2 (kubernetes-1.13.1) so https://proxy.golang.org can + // resolve it correctly. + github.com/prometheus/prometheus => github.com/prometheus/prometheus v0.0.0-20190424153033-d3245f150225 + k8s.io/kube-state-metrics => k8s.io/kube-state-metrics v1.6.0 + sigs.k8s.io/controller-runtime => sigs.k8s.io/controller-runtime v0.1.12 + sigs.k8s.io/controller-tools => sigs.k8s.io/controller-tools v0.1.11-0.20190411181648-9d55346c2bde +) + +replace github.com/operator-framework/operator-sdk => github.com/operator-framework/operator-sdk v0.10.0 diff --git a/go.sum b/go.sum new file mode 100644 index 0000000000..784d7e69da --- /dev/null +++ b/go.sum @@ -0,0 +1,546 @@ +bitbucket.org/ww/goautoneg v0.0.0-20120707110453-75cd24fc2f2c/go.mod h1:1vhO7Mn/FZMgOgDVGLy5X1mE6rq1HbkBdkF/yj8zkcg= +cloud.google.com/go v0.0.0-20160913182117-3b1ae45394a2/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.31.0/go.mod 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( + "github.com/open-telemetry/opentelemetry-operator/pkg/apis/opentelemetry/v1alpha1" +) + +func init() { + // Register the types with the Scheme so the components can map objects to GroupVersionKinds and back + AddToSchemes = append(AddToSchemes, v1alpha1.SchemeBuilder.AddToScheme) +} diff --git a/pkg/apis/apis.go b/pkg/apis/apis.go new file mode 100644 index 0000000000..07dc961644 --- /dev/null +++ b/pkg/apis/apis.go @@ -0,0 +1,13 @@ +package apis + +import ( + "k8s.io/apimachinery/pkg/runtime" +) + +// AddToSchemes may be used to add all resources defined in the project to a Scheme +var AddToSchemes runtime.SchemeBuilder + +// AddToScheme adds all Resources to the Scheme +func AddToScheme(s *runtime.Scheme) error { + return AddToSchemes.AddToScheme(s) +} diff --git a/pkg/apis/opentelemetry/const.go b/pkg/apis/opentelemetry/const.go new file mode 100644 index 0000000000..0708cbf9c2 --- /dev/null +++ b/pkg/apis/opentelemetry/const.go @@ -0,0 +1,13 @@ +package opentelemetry + +// ContextEntry represents a key in the context map +type ContextEntry string + +// ConfigMapEntry represents an entry in a config map +type ConfigMapEntry string + +// Instance is the OpenTelemetryService CR (instance) that is the current target of the reconciliation +const Instance ContextEntry = "__instance" + +// CollectorConfigMapEntry represents the configuration file name for the collector +const CollectorConfigMapEntry = "collector.yaml" diff --git a/pkg/apis/opentelemetry/group.go b/pkg/apis/opentelemetry/group.go new file mode 100644 index 0000000000..5efabeb0b3 --- /dev/null +++ b/pkg/apis/opentelemetry/group.go @@ -0,0 +1,6 @@ +// Package opentelemetry contains opentelemetry API versions. +// +// This file ensures Go source parsers acknowledge the opentelemetry package +// and any child packages. It can be removed if any other Go source files are +// added to this package. +package opentelemetry diff --git a/pkg/apis/opentelemetry/v1alpha1/doc.go b/pkg/apis/opentelemetry/v1alpha1/doc.go new file mode 100644 index 0000000000..961c2544a5 --- /dev/null +++ b/pkg/apis/opentelemetry/v1alpha1/doc.go @@ -0,0 +1,4 @@ +// Package v1alpha1 contains API Schema definitions for the opentelemetry v1alpha1 API group +// +k8s:deepcopy-gen=package,register +// +groupName=opentelemetry.io +package v1alpha1 diff --git a/pkg/apis/opentelemetry/v1alpha1/opentelemetryservice_types.go b/pkg/apis/opentelemetry/v1alpha1/opentelemetryservice_types.go new file mode 100644 index 0000000000..b1ff4fbe9c --- /dev/null +++ b/pkg/apis/opentelemetry/v1alpha1/opentelemetryservice_types.go @@ -0,0 +1,52 @@ +package v1alpha1 + +import ( + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" +) + +// EDIT THIS FILE! THIS IS SCAFFOLDING FOR YOU TO OWN! +// NOTE: json tags are required. Any new fields you add must have json tags for the fields to be serialized. + +// OpenTelemetryServiceSpec defines the desired state of OpenTelemetryService +// +k8s:openapi-gen=true +type OpenTelemetryServiceSpec struct { + // +optional + Replicas *int32 `json:"replicas,omitempty"` + + // +required + Config string `json:"config,omitempty"` +} + +// OpenTelemetryServiceStatus defines the observed state of OpenTelemetryService +// +k8s:openapi-gen=true +type OpenTelemetryServiceStatus struct { + Replicas int32 `json:"replicas"` +} + +// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object + +// OpenTelemetryService is the Schema for the opentelemetryservices API +// +k8s:openapi-gen=true +// +kubebuilder:resource:shortName=otelsvc;otelsvcs +// +kubebuilder:subresource:status +// +kubebuilder:subresource:scale:specpath=.spec.replicas,statuspath=.status.replicas +type OpenTelemetryService struct { + metav1.TypeMeta `json:",inline"` + metav1.ObjectMeta `json:"metadata,omitempty"` + + Spec OpenTelemetryServiceSpec `json:"spec,omitempty"` + Status OpenTelemetryServiceStatus `json:"status,omitempty"` +} + +// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object + +// OpenTelemetryServiceList contains a list of OpenTelemetryService +type OpenTelemetryServiceList struct { + metav1.TypeMeta `json:",inline"` + metav1.ListMeta `json:"metadata,omitempty"` + Items []OpenTelemetryService `json:"items"` +} + +func init() { + SchemeBuilder.Register(&OpenTelemetryService{}, &OpenTelemetryServiceList{}) +} diff --git a/pkg/apis/opentelemetry/v1alpha1/register.go b/pkg/apis/opentelemetry/v1alpha1/register.go new file mode 100644 index 0000000000..2e3ce94978 --- /dev/null +++ b/pkg/apis/opentelemetry/v1alpha1/register.go @@ -0,0 +1,19 @@ +// NOTE: Boilerplate only. Ignore this file. + +// Package v1alpha1 contains API Schema definitions for the opentelemetry v1alpha1 API group +// +k8s:deepcopy-gen=package,register +// +groupName=opentelemetry.io +package v1alpha1 + +import ( + "k8s.io/apimachinery/pkg/runtime/schema" + "sigs.k8s.io/controller-runtime/pkg/runtime/scheme" +) + +var ( + // SchemeGroupVersion is group version used to register these objects + SchemeGroupVersion = schema.GroupVersion{Group: "opentelemetry.io", Version: "v1alpha1"} + + // SchemeBuilder is used to add go types to the GroupVersionKind scheme + SchemeBuilder = &scheme.Builder{GroupVersion: SchemeGroupVersion} +) diff --git a/pkg/apis/opentelemetry/v1alpha1/zz_generated.deepcopy.go b/pkg/apis/opentelemetry/v1alpha1/zz_generated.deepcopy.go new file mode 100644 index 0000000000..07bf436b3c --- /dev/null +++ b/pkg/apis/opentelemetry/v1alpha1/zz_generated.deepcopy.go @@ -0,0 +1,107 @@ +// +build !ignore_autogenerated + +// Code generated by operator-sdk. DO NOT EDIT. + +package v1alpha1 + +import ( + runtime "k8s.io/apimachinery/pkg/runtime" +) + +// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil. +func (in *OpenTelemetryService) DeepCopyInto(out *OpenTelemetryService) { + *out = *in + out.TypeMeta = in.TypeMeta + in.ObjectMeta.DeepCopyInto(&out.ObjectMeta) + in.Spec.DeepCopyInto(&out.Spec) + out.Status = in.Status + return +} + +// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new OpenTelemetryService. +func (in *OpenTelemetryService) DeepCopy() *OpenTelemetryService { + if in == nil { + return nil + } + out := new(OpenTelemetryService) + in.DeepCopyInto(out) + return out +} + +// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object. +func (in *OpenTelemetryService) DeepCopyObject() runtime.Object { + if c := in.DeepCopy(); c != nil { + return c + } + return nil +} + +// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil. +func (in *OpenTelemetryServiceList) DeepCopyInto(out *OpenTelemetryServiceList) { + *out = *in + out.TypeMeta = in.TypeMeta + out.ListMeta = in.ListMeta + if in.Items != nil { + in, out := &in.Items, &out.Items + *out = make([]OpenTelemetryService, len(*in)) + for i := range *in { + (*in)[i].DeepCopyInto(&(*out)[i]) + } + } + return +} + +// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new OpenTelemetryServiceList. +func (in *OpenTelemetryServiceList) DeepCopy() *OpenTelemetryServiceList { + if in == nil { + return nil + } + out := new(OpenTelemetryServiceList) + in.DeepCopyInto(out) + return out +} + +// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object. +func (in *OpenTelemetryServiceList) DeepCopyObject() runtime.Object { + if c := in.DeepCopy(); c != nil { + return c + } + return nil +} + +// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil. +func (in *OpenTelemetryServiceSpec) DeepCopyInto(out *OpenTelemetryServiceSpec) { + *out = *in + if in.Replicas != nil { + in, out := &in.Replicas, &out.Replicas + *out = new(int32) + **out = **in + } + return +} + +// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new OpenTelemetryServiceSpec. +func (in *OpenTelemetryServiceSpec) DeepCopy() *OpenTelemetryServiceSpec { + if in == nil { + return nil + } + out := new(OpenTelemetryServiceSpec) + in.DeepCopyInto(out) + return out +} + +// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil. +func (in *OpenTelemetryServiceStatus) DeepCopyInto(out *OpenTelemetryServiceStatus) { + *out = *in + return +} + +// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new OpenTelemetryServiceStatus. +func (in *OpenTelemetryServiceStatus) DeepCopy() *OpenTelemetryServiceStatus { + if in == nil { + return nil + } + out := new(OpenTelemetryServiceStatus) + in.DeepCopyInto(out) + return out +} diff --git a/pkg/apis/opentelemetry/v1alpha1/zz_generated.openapi.go b/pkg/apis/opentelemetry/v1alpha1/zz_generated.openapi.go new file mode 100644 index 0000000000..9b0df933a2 --- /dev/null +++ b/pkg/apis/opentelemetry/v1alpha1/zz_generated.openapi.go @@ -0,0 +1,106 @@ +// +build !ignore_autogenerated + +// This file was autogenerated by openapi-gen. Do not edit it manually! + +package v1alpha1 + +import ( + spec "github.com/go-openapi/spec" + common "k8s.io/kube-openapi/pkg/common" +) + +func GetOpenAPIDefinitions(ref common.ReferenceCallback) map[string]common.OpenAPIDefinition { + return map[string]common.OpenAPIDefinition{ + "./pkg/apis/opentelemetry/v1alpha1.OpenTelemetryService": schema_pkg_apis_opentelemetry_v1alpha1_OpenTelemetryService(ref), + "./pkg/apis/opentelemetry/v1alpha1.OpenTelemetryServiceSpec": schema_pkg_apis_opentelemetry_v1alpha1_OpenTelemetryServiceSpec(ref), + "./pkg/apis/opentelemetry/v1alpha1.OpenTelemetryServiceStatus": schema_pkg_apis_opentelemetry_v1alpha1_OpenTelemetryServiceStatus(ref), + } +} + +func schema_pkg_apis_opentelemetry_v1alpha1_OpenTelemetryService(ref common.ReferenceCallback) common.OpenAPIDefinition { + return common.OpenAPIDefinition{ + Schema: spec.Schema{ + SchemaProps: spec.SchemaProps{ + Description: "OpenTelemetryService is the Schema for the opentelemetryservices API", + Properties: map[string]spec.Schema{ + "kind": { + SchemaProps: spec.SchemaProps{ + Description: "Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#types-kinds", + Type: []string{"string"}, + Format: "", + }, + }, + "apiVersion": { + SchemaProps: spec.SchemaProps{ + Description: "APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#resources", + Type: []string{"string"}, + Format: "", + }, + }, + "metadata": { + SchemaProps: spec.SchemaProps{ + Ref: ref("k8s.io/apimachinery/pkg/apis/meta/v1.ObjectMeta"), + }, + }, + "spec": { + SchemaProps: spec.SchemaProps{ + Ref: ref("./pkg/apis/opentelemetry/v1alpha1.OpenTelemetryServiceSpec"), + }, + }, + "status": { + SchemaProps: spec.SchemaProps{ + Ref: ref("./pkg/apis/opentelemetry/v1alpha1.OpenTelemetryServiceStatus"), + }, + }, + }, + }, + }, + Dependencies: []string{ + "./pkg/apis/opentelemetry/v1alpha1.OpenTelemetryServiceSpec", "./pkg/apis/opentelemetry/v1alpha1.OpenTelemetryServiceStatus", "k8s.io/apimachinery/pkg/apis/meta/v1.ObjectMeta"}, + } +} + +func schema_pkg_apis_opentelemetry_v1alpha1_OpenTelemetryServiceSpec(ref common.ReferenceCallback) common.OpenAPIDefinition { + return common.OpenAPIDefinition{ + Schema: spec.Schema{ + SchemaProps: spec.SchemaProps{ + Description: "OpenTelemetryServiceSpec defines the desired state of OpenTelemetryService", + Properties: map[string]spec.Schema{ + "replicas": { + SchemaProps: spec.SchemaProps{ + Type: []string{"integer"}, + Format: "int32", + }, + }, + "config": { + SchemaProps: spec.SchemaProps{ + Type: []string{"string"}, + Format: "", + }, + }, + }, + }, + }, + Dependencies: []string{}, + } +} + +func schema_pkg_apis_opentelemetry_v1alpha1_OpenTelemetryServiceStatus(ref common.ReferenceCallback) common.OpenAPIDefinition { + return common.OpenAPIDefinition{ + Schema: spec.Schema{ + SchemaProps: spec.SchemaProps{ + Description: "OpenTelemetryServiceStatus defines the observed state of OpenTelemetryService", + Properties: map[string]spec.Schema{ + "replicas": { + SchemaProps: spec.SchemaProps{ + Type: []string{"integer"}, + Format: "int32", + }, + }, + }, + Required: []string{"replicas"}, + }, + }, + Dependencies: []string{}, + } +} diff --git a/pkg/controller/add_opentelemetryservice.go b/pkg/controller/add_opentelemetryservice.go new file mode 100644 index 0000000000..57fa343450 --- /dev/null +++ b/pkg/controller/add_opentelemetryservice.go @@ -0,0 +1,10 @@ +package controller + +import ( + "github.com/open-telemetry/opentelemetry-operator/pkg/controller/opentelemetryservice" +) + +func init() { + // AddToManagerFuncs is a list of functions to create controllers and add them to a manager. + AddToManagerFuncs = append(AddToManagerFuncs, opentelemetryservice.Add) +} diff --git a/pkg/controller/controller.go b/pkg/controller/controller.go new file mode 100644 index 0000000000..7c069f3ee6 --- /dev/null +++ b/pkg/controller/controller.go @@ -0,0 +1,18 @@ +package controller + +import ( + "sigs.k8s.io/controller-runtime/pkg/manager" +) + +// AddToManagerFuncs is a list of functions to add all Controllers to the Manager +var AddToManagerFuncs []func(manager.Manager) error + +// AddToManager adds all Controllers to the Manager +func AddToManager(m manager.Manager) error { + for _, f := range AddToManagerFuncs { + if err := f(m); err != nil { + return err + } + } + return nil +} diff --git a/pkg/controller/opentelemetryservice/labels.go b/pkg/controller/opentelemetryservice/labels.go new file mode 100644 index 0000000000..c9dfcaff0f --- /dev/null +++ b/pkg/controller/opentelemetryservice/labels.go @@ -0,0 +1,25 @@ +package opentelemetryservice + +import ( + "context" + "fmt" + + "github.com/open-telemetry/opentelemetry-operator/pkg/apis/opentelemetry" + "github.com/open-telemetry/opentelemetry-operator/pkg/apis/opentelemetry/v1alpha1" +) + +// commonLabels return the common labels to all objects that are part of a managed OpenTelemetryService +func commonLabels(ctx context.Context) map[string]string { + instance := ctx.Value(opentelemetry.Instance).(*v1alpha1.OpenTelemetryService) + base := instance.Labels + if nil == base { + base = map[string]string{} + } + + base["app.kubernetes.io/managed-by"] = "opentelemetry-operator" + base["app.kubernetes.io/instance"] = fmt.Sprintf("%s.%s", instance.Namespace, instance.Name) + base["app.kubernetes.io/part-of"] = "opentelemetry" + base["app.kubernetes.io/component"] = "opentelemetry-service" + + return base +} diff --git a/pkg/controller/opentelemetryservice/opentelemetryservice_controller.go b/pkg/controller/opentelemetryservice/opentelemetryservice_controller.go new file mode 100644 index 0000000000..c062f1be09 --- /dev/null +++ b/pkg/controller/opentelemetryservice/opentelemetryservice_controller.go @@ -0,0 +1,58 @@ +package opentelemetryservice + +import ( + corev1 "k8s.io/api/core/v1" + "sigs.k8s.io/controller-runtime/pkg/controller" + "sigs.k8s.io/controller-runtime/pkg/handler" + "sigs.k8s.io/controller-runtime/pkg/manager" + "sigs.k8s.io/controller-runtime/pkg/reconcile" + logf "sigs.k8s.io/controller-runtime/pkg/runtime/log" + "sigs.k8s.io/controller-runtime/pkg/source" + + "github.com/open-telemetry/opentelemetry-operator/pkg/apis/opentelemetry/v1alpha1" +) + +var log = logf.Log.WithName("controller_opentelemetryservice") + +/** +* USER ACTION REQUIRED: This is a scaffold file intended for the user to modify with their own Controller +* business logic. Delete these comments after modifying this file.* + */ + +// Add creates a new OpenTelemetryService Controller and adds it to the Manager. The Manager will set fields on the Controller +// and Start it when the Manager is Started. +func Add(mgr manager.Manager) error { + return add(mgr, newReconciler(mgr)) +} + +// newReconciler returns a new reconcile.Reconciler +func newReconciler(mgr manager.Manager) reconcile.Reconciler { + return &ReconcileOpenTelemetryService{client: mgr.GetClient(), scheme: mgr.GetScheme()} +} + +// add adds a new Controller to mgr with r as the reconcile.Reconciler +func add(mgr manager.Manager, r reconcile.Reconciler) error { + // Create a new controller + c, err := controller.New("opentelemetryservice-controller", mgr, controller.Options{Reconciler: r}) + if err != nil { + return err + } + + // Watch for changes to primary resource OpenTelemetryService + err = c.Watch(&source.Kind{Type: &v1alpha1.OpenTelemetryService{}}, &handler.EnqueueRequestForObject{}) + if err != nil { + return err + } + + // TODO(user): Modify this to be the types you create that are owned by the primary resource + // Watch for changes to secondary resource Pods and requeue the owner OpenTelemetryService + err = c.Watch(&source.Kind{Type: &corev1.Pod{}}, &handler.EnqueueRequestForOwner{ + IsController: true, + OwnerType: &v1alpha1.OpenTelemetryService{}, + }) + if err != nil { + return err + } + + return nil +} diff --git a/pkg/controller/opentelemetryservice/reconcile.go b/pkg/controller/opentelemetryservice/reconcile.go new file mode 100644 index 0000000000..5c9ba0e9c0 --- /dev/null +++ b/pkg/controller/opentelemetryservice/reconcile.go @@ -0,0 +1,79 @@ +package opentelemetryservice + +import ( + "context" + + "k8s.io/apimachinery/pkg/api/errors" + v1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/runtime" + "sigs.k8s.io/controller-runtime/pkg/client" + "sigs.k8s.io/controller-runtime/pkg/controller/controllerutil" + "sigs.k8s.io/controller-runtime/pkg/reconcile" + + "github.com/open-telemetry/opentelemetry-operator/pkg/apis/opentelemetry" + "github.com/open-telemetry/opentelemetry-operator/pkg/apis/opentelemetry/v1alpha1" +) + +// blank assignment to verify that ReconcileOpenTelemetryService implements reconcile.Reconciler +var _ reconcile.Reconciler = &ReconcileOpenTelemetryService{} + +// ReconcileOpenTelemetryService reconciles a OpenTelemetryService object +type ReconcileOpenTelemetryService struct { + // This client, initialized using mgr.Client() above, is a split client + // that reads objects from the cache and writes to the apiserver + client client.Client + scheme *runtime.Scheme +} + +// Reconcile reads that state of the cluster for a OpenTelemetryService object and makes changes based on the state read +// and what is in the OpenTelemetryService.Spec +func (r *ReconcileOpenTelemetryService) Reconcile(request reconcile.Request) (reconcile.Result, error) { + reqLogger := log.WithValues("Request.Namespace", request.Namespace, "Request.Name", request.Name) + reqLogger.Info("Reconciling OpenTelemetryService") + + // Fetch the OpenTelemetryService instance + instance := &v1alpha1.OpenTelemetryService{} + err := r.client.Get(context.Background(), request.NamespacedName, instance) + if err != nil { + if errors.IsNotFound(err) { + // Request object not found, could have been deleted after reconcile request. + // Owned objects are automatically garbage collected. For additional cleanup logic use finalizers. + // Return and don't requeue + return reconcile.Result{}, nil + } + // Error reading the object - requeue the request. + return reconcile.Result{}, err + } + + // set the execution context for this reconcile loop + ctx := context.WithValue(context.Background(), opentelemetry.Instance, instance) + + if err := r.handleReconcile(ctx); err != nil { + return reconcile.Result{}, err + } + + return reconcile.Result{}, nil +} + +// handleReconcile compares the existing state vs. the expected state and performs the necessary actions to make the two match +func (r *ReconcileOpenTelemetryService) handleReconcile(ctx context.Context) error { + funcs := []func(context.Context) error{ + r.reconcileConfigMap, + r.reconcileService, + r.reconcileDeployment, + } + + for _, f := range funcs { + if err := f(ctx); err != nil { + return err + } + } + + return nil +} + +// setControllerReference should be used by the individual reconcile functions to establish the ownership of the underlying resources +func (r *ReconcileOpenTelemetryService) setControllerReference(ctx context.Context, object v1.Object) error { + instance := ctx.Value(opentelemetry.Instance).(*v1alpha1.OpenTelemetryService) + return controllerutil.SetControllerReference(instance, object, r.scheme) +} diff --git a/pkg/controller/opentelemetryservice/reconcile_configmap.go b/pkg/controller/opentelemetryservice/reconcile_configmap.go new file mode 100644 index 0000000000..06ee3c08ab --- /dev/null +++ b/pkg/controller/opentelemetryservice/reconcile_configmap.go @@ -0,0 +1,59 @@ +package opentelemetryservice + +import ( + "context" + "fmt" + + corev1 "k8s.io/api/core/v1" + "k8s.io/apimachinery/pkg/api/errors" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/types" + + "github.com/open-telemetry/opentelemetry-operator/pkg/apis/opentelemetry" + "github.com/open-telemetry/opentelemetry-operator/pkg/apis/opentelemetry/v1alpha1" +) + +// reconcileDeployment reconciles the deployment(s) required for the instance in the current context +func (r *ReconcileOpenTelemetryService) reconcileConfigMap(ctx context.Context) error { + desired, err := configMap(ctx) + if err != nil { + return err + } + + r.setControllerReference(ctx, desired) + + expected := &corev1.ConfigMap{} + err = r.client.Get(ctx, types.NamespacedName{Name: desired.Name, Namespace: desired.Namespace}, expected) + if err != nil && errors.IsNotFound(err) { + if err := r.client.Create(ctx, desired); err != nil { + return err + } + } else if err != nil { + return err + } + + // it exists already, merge the two if the end result isn't identical to the existing one + // TODO(jpkroehling) + + return nil +} + +func configMap(ctx context.Context) (*corev1.ConfigMap, error) { + instance := ctx.Value(opentelemetry.Instance).(*v1alpha1.OpenTelemetryService) + name := fmt.Sprintf("%s-collector", instance.Name) + + labels := commonLabels(ctx) + labels["app.kubernetes.io/name"] = name + + return &corev1.ConfigMap{ + ObjectMeta: metav1.ObjectMeta{ + Name: name, + Namespace: instance.Namespace, + Labels: labels, + Annotations: instance.Annotations, + }, + Data: map[string]string{ + opentelemetry.CollectorConfigMapEntry: instance.Spec.Config, + }, + }, nil +} diff --git a/pkg/controller/opentelemetryservice/reconcile_deployment.go b/pkg/controller/opentelemetryservice/reconcile_deployment.go new file mode 100644 index 0000000000..b06db4b96c --- /dev/null +++ b/pkg/controller/opentelemetryservice/reconcile_deployment.go @@ -0,0 +1,95 @@ +package opentelemetryservice + +import ( + "context" + "fmt" + + appsv1 "k8s.io/api/apps/v1" + corev1 "k8s.io/api/core/v1" + "k8s.io/apimachinery/pkg/api/errors" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/types" + + "github.com/open-telemetry/opentelemetry-operator/pkg/apis/opentelemetry" + "github.com/open-telemetry/opentelemetry-operator/pkg/apis/opentelemetry/v1alpha1" +) + +// reconcileDeployment reconciles the deployment(s) required for the instance in the current context +func (r *ReconcileOpenTelemetryService) reconcileDeployment(ctx context.Context) error { + desired := deployment(ctx) + r.setControllerReference(ctx, desired) + + expected := &appsv1.Deployment{} + err := r.client.Get(ctx, types.NamespacedName{Name: desired.Name, Namespace: desired.Namespace}, expected) + if err != nil && errors.IsNotFound(err) { + if err := r.client.Create(ctx, desired); err != nil { + return err + } + } else if err != nil { + return err + } + + // it exists already, merge the two if the end result isn't identical to the existing one + // TODO(jpkroehling) + + return nil +} + +func deployment(ctx context.Context) *appsv1.Deployment { + instance := ctx.Value(opentelemetry.Instance).(*v1alpha1.OpenTelemetryService) + name := fmt.Sprintf("%s-collector", instance.Name) + + labels := commonLabels(ctx) + labels["app.kubernetes.io/name"] = name + + specAnnotations := instance.Annotations + specAnnotations["prometheus.io/scrape"] = "true" + specAnnotations["prometheus.io/port"] = "8888" + specAnnotations["prometheus.io/path"] = "/metrics" + + return &appsv1.Deployment{ + ObjectMeta: metav1.ObjectMeta{ + Name: name, + Namespace: instance.Namespace, + Labels: labels, + Annotations: instance.Annotations, + }, + Spec: appsv1.DeploymentSpec{ + Replicas: instance.Spec.Replicas, + Selector: &metav1.LabelSelector{ + MatchLabels: labels, + }, + Template: corev1.PodTemplateSpec{ + ObjectMeta: metav1.ObjectMeta{ + Labels: labels, + Annotations: specAnnotations, + }, + Spec: corev1.PodSpec{ + Containers: []corev1.Container{{ + Name: "opentelemetry-service", + Image: "quay.io/jpkroehling/opentelemetry-service:latest", + VolumeMounts: []corev1.VolumeMount{{ + Name: name, + MountPath: "/conf", + }}, + Args: []string{ + fmt.Sprintf("--config=/conf/%s", opentelemetry.CollectorConfigMapEntry), + }, + }}, + Volumes: []corev1.Volume{{ + Name: name, + VolumeSource: corev1.VolumeSource{ + ConfigMap: &corev1.ConfigMapVolumeSource{ + LocalObjectReference: corev1.LocalObjectReference{Name: name}, + Items: []corev1.KeyToPath{{ + Key: opentelemetry.CollectorConfigMapEntry, + Path: opentelemetry.CollectorConfigMapEntry, + }}, + }, + }, + }}, + }, + }, + }, + } +} diff --git a/pkg/controller/opentelemetryservice/reconcile_service.go b/pkg/controller/opentelemetryservice/reconcile_service.go new file mode 100644 index 0000000000..bd5eea0649 --- /dev/null +++ b/pkg/controller/opentelemetryservice/reconcile_service.go @@ -0,0 +1,68 @@ +package opentelemetryservice + +import ( + "context" + "fmt" + + "github.com/open-telemetry/opentelemetry-operator/pkg/apis/opentelemetry" + "github.com/open-telemetry/opentelemetry-operator/pkg/apis/opentelemetry/v1alpha1" + corev1 "k8s.io/api/core/v1" + "k8s.io/apimachinery/pkg/api/errors" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/types" + "k8s.io/apimachinery/pkg/util/intstr" +) + +// reconcileService reconciles the service(s) required for the instance in the current context +func (r *ReconcileOpenTelemetryService) reconcileService(ctx context.Context) error { + desired := service(ctx) + r.setControllerReference(ctx, desired) + + expected := &corev1.Service{} + err := r.client.Get(ctx, types.NamespacedName{Name: desired.Name, Namespace: desired.Namespace}, expected) + if err != nil && errors.IsNotFound(err) { + if err := r.client.Create(ctx, desired); err != nil { + return err + } + } else if err != nil { + return err + } + + // it exists already, merge the two if the end result isn't identical to the existing one + // TODO(jpkroehling) + + return nil +} + +func service(ctx context.Context) *corev1.Service { + instance := ctx.Value(opentelemetry.Instance).(*v1alpha1.OpenTelemetryService) + name := fmt.Sprintf("%s-collector", instance.Name) + + labels := commonLabels(ctx) + labels["app.kubernetes.io/name"] = name + + // by coincidence, the selector is the same as the label, but note that the selector points to the deployment + // whereas 'labels' refers to the service + selector := labels + + return &corev1.Service{ + ObjectMeta: metav1.ObjectMeta{ + Name: name, + Namespace: instance.Namespace, + Labels: labels, + Annotations: instance.Annotations, + }, + Spec: corev1.ServiceSpec{ + Selector: selector, + ClusterIP: "", + Ports: []corev1.ServicePort{ + { + Name: "jaeger-grpc", + Port: 14250, + TargetPort: intstr.FromInt(14250), + }, + }, + }, + } + +} diff --git a/tools.go b/tools.go new file mode 100644 index 0000000000..648413f980 --- /dev/null +++ b/tools.go @@ -0,0 +1,7 @@ +// +build tools + +package tools + +import ( + _ "sigs.k8s.io/controller-tools/pkg/crd/generator" +) diff --git a/version/version.go b/version/version.go new file mode 100644 index 0000000000..53df316afb --- /dev/null +++ b/version/version.go @@ -0,0 +1,9 @@ +package version + +var ( + // Version of this operator + Version string + + // BuildDate of this operator + BuildDate string +)