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Add Central Management feature (elastic#8559)
* Beats enrollment subcommand (elastic#7182) This PR implements intial enrollment to Central Management in Kibana. After running the enrollment command, beats will have a valid access token to use when retrieving configurations. To test this: - Use the following branches: - Elasticsearch: https://github.com/ycombinator/elasticsearch/tree/x-pack/management/beats - Kibana: https://github.com/elastic/kibana/tree/feature/x-pack/management/beats - Retrieve a valid enrollment token: ``` curl \ -u elastic \ -H 'kbn-xsrf: foobar' \ -H 'Content-Type: application/json' \ -X POST \ http://localhost:5601/api/beats/enrollment_tokens ``` - Use it: ``` <beat> enroll http://localhost:5601 <enrollment_token> ``` - Check agent is enrolled: ``` curl http://localhost:5601/api/beats/agents | jq ``` This is part of elastic#7028, closes elastic#7032 * Add API client to retrieve configurations from CM (elastic#8155) * Add central management service (elastic#8263) * Add config manager initial skeleton Config manager will poll configs from Kibana and apply them locally. It must be started with the beat. In order to check the user is not trying to override configurations provided by central management, the Config Manager can check the exisitng configuration and return errors if something is wrong. * Register output for reloading (elastic#8378) * Also send beat name when enrolling (elastic#8380) * Refactor how configs are stored (elastic#8379) * Refactor configs storage to avoid YAML issues * Refactor manager loop to avoid repeated code * Use beat name var when registering confs (elastic#8435) This should make Auditbeat or any other beat based on Metricbeat have their own namespace for confs * Allow user/passwd based enrollment (elastic#8524) * Allow user/passwd based enrollment This allows to enroll using the following workflow: ``` $ <beat> enroll http://kibana:5601 --username elastic Enter password: Enrolled and ready to retrieve settings from Kibana ``` It also allows to pass the password as an env variable: ``` PASS=... $ <beat> enroll http://kibana:5601 --username elastic --password env:PASS Enrolled and ready to retrieve settings from Kibana ``` * Fix some strings after review comments * Add changelog
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| // Licensed to Elasticsearch B.V. under one or more contributor | ||
| // license agreements. See the NOTICE file distributed with | ||
| // this work for additional information regarding copyright | ||
| // ownership. Elasticsearch B.V. licenses this file to you 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 cli | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "os" | ||
| "strings" | ||
| "syscall" | ||
|
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| "github.com/pkg/errors" | ||
| "golang.org/x/crypto/ssh/terminal" | ||
| ) | ||
|
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| type method func(m string) (string, error) | ||
|
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| var methods = map[string]method{ | ||
| "stdin": stdin, | ||
| "env": env, | ||
| } | ||
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| // ReadPassword allows to read a password passed as a command line parameter. | ||
| // It offers several ways to read the password so it is not directly passed as a plain text argument: | ||
| // stdin - Will prompt the user to input the password | ||
| // env:VAR_NAME - Will read the password from the given env variable | ||
| // | ||
| func ReadPassword(def string) (string, error) { | ||
| if len(def) == 0 { | ||
| return "", errors.New("empty password definition") | ||
| } | ||
|
|
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| var method, params string | ||
| parts := strings.SplitN(def, ":", 2) | ||
| method = strings.ToLower(parts[0]) | ||
|
|
||
| if len(parts) == 2 { | ||
| params = parts[1] | ||
| } | ||
|
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| m := methods[method] | ||
| if m == nil { | ||
| return "", errors.New("unknown password source, use stdin or env:VAR_NAME") | ||
| } | ||
|
|
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| return m(params) | ||
| } | ||
|
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| func stdin(p string) (string, error) { | ||
| fmt.Print("Enter password: ") | ||
| bytePassword, err := terminal.ReadPassword(int(syscall.Stdin)) | ||
| if err != nil { | ||
| return "", errors.Wrap(err, "reading password input") | ||
| } | ||
| return string(bytePassword), nil | ||
| } | ||
|
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| func env(p string) (string, error) { | ||
| if len(p) == 0 { | ||
| return "", errors.New("env variable name is needed when using env: password method") | ||
| } | ||
|
|
||
| return os.Getenv(p), nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| // Licensed to Elasticsearch B.V. under one or more contributor | ||
| // license agreements. See the NOTICE file distributed with | ||
| // this work for additional information regarding copyright | ||
| // ownership. Elasticsearch B.V. licenses this file to you 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 cli | ||
|
|
||
| import ( | ||
| "os" | ||
| "testing" | ||
|
|
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| "github.com/stretchr/testify/assert" | ||
| ) | ||
|
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| func TestReadPassword(t *testing.T) { | ||
| os.Setenv("FOO", "random") | ||
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| tests := []struct { | ||
| name string | ||
| input string | ||
| password string | ||
| error bool | ||
| }{ | ||
| { | ||
| name: "Test env variable", | ||
| input: "env:FOO", | ||
| password: "random", | ||
| }, | ||
| { | ||
| name: "Test unknown method", | ||
| input: "foo:bar", | ||
| error: true, | ||
| }, | ||
| { | ||
| name: "Test empty input", | ||
| input: "", | ||
| error: true, | ||
| }, | ||
| } | ||
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| for _, test := range tests { | ||
| t.Run(test.name, func(t *testing.T) { | ||
| password, err := ReadPassword(test.input) | ||
| assert.Equal(t, test.password, password) | ||
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| if test.error { | ||
| assert.Error(t, err) | ||
| } else { | ||
| assert.NoError(t, err) | ||
| } | ||
| }) | ||
| } | ||
| } |
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