forked from operator-framework/operator-sdk
/
run.go
125 lines (110 loc) · 3.75 KB
/
run.go
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// Copyright 2019 The Operator-SDK Authors
//
// 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.
package ansible
import (
"context"
"fmt"
"os"
"runtime"
aoflags "github.com/operator-framework/operator-sdk/pkg/ansible/flags"
"github.com/operator-framework/operator-sdk/pkg/ansible/operator"
proxy "github.com/operator-framework/operator-sdk/pkg/ansible/proxy"
"github.com/operator-framework/operator-sdk/pkg/ansible/proxy/controllermap"
"github.com/operator-framework/operator-sdk/pkg/k8sutil"
"github.com/operator-framework/operator-sdk/pkg/leader"
"github.com/operator-framework/operator-sdk/pkg/metrics"
sdkVersion "github.com/operator-framework/operator-sdk/version"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"sigs.k8s.io/controller-runtime/pkg/client/config"
"sigs.k8s.io/controller-runtime/pkg/manager"
logf "sigs.k8s.io/controller-runtime/pkg/runtime/log"
)
var log = logf.Log.WithName("cmd")
func printVersion() {
log.Info(fmt.Sprintf("Go Version: %s", runtime.Version()))
log.Info(fmt.Sprintf("Go OS/Arch: %s/%s", runtime.GOOS, runtime.GOARCH))
log.Info(fmt.Sprintf("Version of operator-sdk: %v", sdkVersion.Version))
}
// Run will start the ansible operator and proxy, blocking until one of them
// returns.
func Run(flags *aoflags.AnsibleOperatorFlags) error {
printVersion()
namespace, found := os.LookupEnv(k8sutil.WatchNamespaceEnvVar)
log = log.WithValues("Namespace", namespace)
if found {
log.Info("Watching namespace.")
} else {
log.Info(fmt.Sprintf("%v environment variable not set. This operator is watching all namespaces.",
k8sutil.WatchNamespaceEnvVar))
namespace = metav1.NamespaceAll
}
cfg, err := config.GetConfig()
if err != nil {
log.Error(err, "Failed to get config.")
return err
}
// TODO: probably should expose the host & port as an environment variables
mgr, err := manager.New(cfg, manager.Options{
Namespace: namespace,
MetricsBindAddress: "0.0.0.0:8383",
})
if err != nil {
log.Error(err, "Failed to create a new manager.")
return err
}
name, found := os.LookupEnv(k8sutil.OperatorNameEnvVar)
if !found {
log.Error(fmt.Errorf("%s environment variable not set", k8sutil.OperatorNameEnvVar), "")
return err
}
// Become the leader before proceeding
err = leader.Become(context.TODO(), name+"-lock")
if err != nil {
log.Error(err, "Failed to become leader.")
return err
}
// TODO: probably should expose the port as an environment variable
_, err = metrics.ExposeMetricsPort(context.TODO(), 8383)
if err != nil {
log.Error(err, "Exposing metrics port failed.")
return err
}
done := make(chan error)
cMap := controllermap.NewControllerMap()
// start the proxy
err = proxy.Run(done, proxy.Options{
Address: "localhost",
Port: 8888,
KubeConfig: mgr.GetConfig(),
Cache: mgr.GetCache(),
RESTMapper: mgr.GetRESTMapper(),
ControllerMap: cMap,
OwnerInjection: flags.InjectOwnerRef,
WatchedNamespaces: []string{namespace},
})
if err != nil {
log.Error(err, "Error starting proxy.")
return err
}
// start the operator
go operator.Run(done, mgr, flags, cMap)
// wait for either to finish
err = <-done
if err != nil {
log.Error(err, "Proxy or operator exited with error.")
os.Exit(1)
}
log.Info("Exiting.")
return nil
}