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ci: add fluentd basic e2e tests (#71)
- breaking out the 'log generation' piece out of the aws log test file into the main test file as func sendTestLogByContainerd so that it can be reused for every driver (which seems like a good idea) - add a fluentd test that does validation - adds fluentd to the GitHub action (note this launches a docker containerd with the fluentd server) - adds fluentd test to makefile Signed-off-by: Ziwen Ning <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
|
|
||
| package e2e | ||
|
|
||
| import ( | ||
| "bufio" | ||
| "encoding/json" | ||
| "os" | ||
| "path/filepath" | ||
| "strings" | ||
|
|
||
| "github.com/containerd/containerd/cio" | ||
| "github.com/onsi/ginkgo/v2" | ||
| "github.com/onsi/gomega" | ||
| ) | ||
|
|
||
| const ( | ||
| fluentdLogDirName = "./../fluentd-logs" | ||
| ) | ||
|
|
||
| var testFluentd = func() { | ||
| // These tests are run in serial because we only define one log driver instance. | ||
| ginkgo.Describe("fluentd shim logger", ginkgo.Serial, func() { | ||
| ginkgo.It("should send logs to fluentd log driver", func() { | ||
| args := map[string]string{ | ||
| logDriverTypeKey: fluentdDriverName, | ||
| containerIdKey: testContainerId, | ||
| containerNameKey: testContainerName, | ||
| "--verbose": "true", | ||
| } | ||
| creator := cio.BinaryIO(*Binary, args) | ||
| sendTestLogByContainerd(creator, testLog) | ||
| validateTestLogsInFluentd(fluentdLogDirName, testLog) | ||
| }) | ||
| }) | ||
| } | ||
|
|
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| func validateTestLogsInFluentd(dirName string, testLog string) { | ||
| // For single test, there are 3 files in Fluentd log dir: "data.<hash>.log", "data.<hash>.log.meta" and "data.log". | ||
| // For example: "data.b60581c99383f387cfaba1fc90272852e.log", "data.b60581c99383f387cfaba1fc90272852e.log.meta" and "data.log" | ||
| // "data.<hash>.log" has the logs that the tests sent. | ||
| // "data.<hash>.log" can have multiple lines of records following time sequence. Here is a sample content with 3 lines. | ||
| // 2023-09-16T22:54:11+00:00 123456789012 {"source":"stdout","log":"test-e2e-log","container_id":"123456789012","container_name":"test-container"} | ||
| // 2023-09-16T22:54:30+00:00 123456789012 {"container_id":"123456789012","container_name":"test-container","source":"stdout","log":"test-e2e-log"} | ||
| // 2023-09-16T22:56:17+00:00 123456789012 {"container_id":"123456789012","container_name":"test-container","source":"stdout","log":"test-e2e-log"} | ||
| // The following steps retrieves the "log" field of the third string parsed by tab of the last line to validate the tests sent. | ||
| var fileName string | ||
| err := filepath.Walk(dirName, func(path string, info os.FileInfo, err error) error { | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if strings.HasPrefix(info.Name(), "data.") && strings.HasSuffix(info.Name(), ".log") && info.Name() != "data.log" { | ||
| fileName = path | ||
| } | ||
| return nil | ||
| }) | ||
| gomega.Expect(err).ShouldNot(gomega.HaveOccurred()) | ||
| gomega.Expect(fileName).ShouldNot(gomega.Equal("")) | ||
| file, err := os.Open(fileName) | ||
| gomega.Expect(err).ShouldNot(gomega.HaveOccurred()) | ||
| defer file.Close() | ||
| var lastLine string | ||
| scanner := bufio.NewScanner(file) | ||
| for scanner.Scan() { | ||
| lastLine = scanner.Text() | ||
| } | ||
| gomega.Expect(err).ShouldNot(gomega.HaveOccurred()) | ||
| contentParts := strings.Split(lastLine, "\t") | ||
| gomega.Expect(len(contentParts)).Should(gomega.Equal(3)) | ||
| var logContent map[string]string | ||
| err = json.Unmarshal([]byte(contentParts[2]), &logContent) | ||
| gomega.Expect(err).ShouldNot(gomega.HaveOccurred()) | ||
| gomega.Expect(logContent["log"]).Should(gomega.Equal(testLog)) | ||
| } |
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