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agency.go
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agency.go
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//
// DISCLAIMER
//
// Copyright 2023-2024 ArangoDB GmbH, Cologne, Germany
//
// 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.
//
// Copyright holder is ArangoDB GmbH, Cologne, Germany
//
package kubernetes
import (
"bytes"
"fmt"
"os"
"os/exec"
"github.com/rs/zerolog"
"github.com/arangodb/kube-arangodb/pkg/debug_package/cli"
"github.com/arangodb/kube-arangodb/pkg/debug_package/shared"
"github.com/arangodb/kube-arangodb/pkg/util/errors"
"github.com/arangodb/kube-arangodb/pkg/util/kclient"
"github.com/arangodb/kube-arangodb/pkg/util/shutdown"
)
const LocalBinDir = "/usr/bin/arangodb_operator"
func AgencyDump() shared.Factory {
return shared.NewFactory("agency-dump", true, agencyDump)
}
func agencyDump(logger zerolog.Logger, files chan<- shared.File) error {
ef, err := discoverExecFunc()
if err != nil {
return err
}
k, ok := kclient.GetDefaultFactory().Client()
if !ok {
return errors.Errorf("Client is not initialised")
}
deployments, err := listArangoDeployments(k.Arango())()
if err != nil {
return err
}
for _, deployment := range deployments {
if !deployment.GetAcceptedSpec().Mode.HasAgents() {
continue
}
NewDeploymentAgencyInfo(files, deployment.GetName(), ef)
}
return nil
}
func NewDeploymentAgencyInfo(out chan<- shared.File, name string, handler ArangoOperatorExecFunc) {
out <- shared.NewFile(fmt.Sprintf("kubernetes/arango/deployments/%s/agency/dump.json", name), func() ([]byte, error) {
out, _, err := handler("admin", "agency", "dump", "-d", name)
if err != nil {
return nil, err
}
return out, nil
})
out <- shared.NewFile(fmt.Sprintf("kubernetes/arango/deployments/%s/agency/state.json", name), func() ([]byte, error) {
out, _, err := handler("admin", "agency", "state", "-d", name)
if err != nil {
return nil, err
}
return out, nil
})
}
type ArangoOperatorExecFunc func(args ...string) ([]byte, []byte, error)
func discoverExecFunc() (ArangoOperatorExecFunc, error) {
if _, err := os.Stat(LocalBinDir); err != nil {
if !os.IsNotExist(err) {
return nil, err
}
k, ok := kclient.GetDefaultFactory().Client()
if !ok {
return nil, errors.Errorf("Client is not initialised")
}
pods, err := listPods(k.Kubernetes())()
if err != nil {
return nil, err
}
var id string
for _, v := range pods {
if id != "" {
break
}
for _, container := range v.Spec.Containers {
if container.Name != "operator" {
continue
}
var stderr, stdout bytes.Buffer
if err := shared.ExecuteCommandInPod(shutdown.Context(), k, "operator", v.GetName(), v.GetNamespace(), []string{LocalBinDir, "version"}, nil, &stdout, &stderr); err != nil {
continue
}
id = v.GetName()
}
}
if id == "" {
return nil, errors.Errorf("Unable to find Operator pod")
}
return func(args ...string) ([]byte, []byte, error) {
var stderr, stdout bytes.Buffer
in := make([]string, len(args)+1)
in[0] = LocalBinDir
for id := range args {
in[id+1] = args[id]
}
err := shared.ExecuteCommandInPod(shutdown.Context(), k, "operator", id, cli.GetInput().Namespace, in, nil, &stdout, &stderr)
return stdout.Bytes(), stderr.Bytes(), err
}, nil
} else {
return func(args ...string) ([]byte, []byte, error) {
cmd := exec.Command(LocalBinDir, args...)
var stderr, stdout bytes.Buffer
cmd.Stdout = &stdout
cmd.Stderr = &stderr
err := cmd.Run()
return stdout.Bytes(), stderr.Bytes(), err
}, nil
}
}