[kubernetes] skaffold 로컬 환경 세팅 트러블슈팅

[kubernetes] 개발환경 목차

ㅁ 개요

 ㅇ skaffold와 Intellij를 연동하여 쿠버네티스 로컬 개발환경 세팅하면서 발생한 문제를 해결하는 과정 정리

 ㅇ 이전 글:  [kubernets] Kubernetes 로컬 개발환경 skaffold, Intellij

 

ㅁ 목록

 ㅇ Gradle 오류발생

 ㅇ skaffold build 중 Git init 오류

 ㅇ  skaffold run 시 image pull 에러

 

ㅁ 트러블슈팅1, Gradle 오류발생

 ㅇ Gradle 7.5가 로컬에서 실행되면서 문제가 발생하였다.

 ㅇ 현재 개발환경과 최근 Gradle의 버젼이 맞이 않아서 발생.

 

 ㅇ Gradle 6.8.3으로 수정하여 문제 해결함.

 

 

 

ㅁ 트러블슈팅2, skaffold build 중 Git init 오류

$ skaffold build
Generating tags...
 - skaffold -> skaffold:latest
Some taggers failed. Rerun with -vdebug for errors.
Checking cache...
 - skaffold: Error checking cache.
getting hash for artifact "skaffold": getting dependencies for "skaffold": could not fetch dependencies for workspace .: initial Jib dependency refresh failed: failed to get Jib dependencies: running [/Users/peterseo/study/aws/skaffold/gradlew _skaffoldFailIfJibOutOfDate -Djib.requiredVersion=1.4.0 :_jibSkaffoldFilesV2 -q --console=plain]
 - stdout: ""
 - stderr: "\nFAILURE: Build failed with an exception.\n\n* What went wrong:\nTask '_skaffoldFailIfJibOutOfDate' not found in root project 'skaffold'.\n\n* Try:\nRun gradlew tasks to get a list of available tasks. Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.\n\n* Get more help at https://help.gradle.org\n\nBUILD FAILED in 605ms\n"
 - cause: exit status 1

 ㅇ 에러가 발생하였다. 내용상 정확한 원인을 분석 할 수 없어서 -vdebug 를 사용해보았다.

 

 

$ skaffold build -vdebug
DEBU[0000] skaffold API not starting as it's not requested  subtask=-1 task=DevLoop
INFO[0000] Skaffold &{Version:v1.39.2 ConfigVersion:skaffold/v2beta29 GitVersion: GitCommit:7ed1d722b53b55ac1c909f00d00a05b47d0964dd BuildDate:2022-08-16T21:03:40Z GoVersion:go1.17.13 Compiler:gc Platform:darwin/amd64 User:}  subtask=-1 task=DevLoop
INFO[0000] Loaded Skaffold defaults from "/Users/peterseo/.skaffold/config"  subtask=-1 task=DevLoop
DEBU[0000] config version out of date: upgrading to latest "skaffold/v2beta29"  subtask=-1 task=DevLoop
DEBU[0000] parsed 1 configs from configuration file /Users/peterseo/study/aws/skaffold/skaffold.yaml  subtask=-1 task=DevLoop
INFO[0000] map entry found when executing locate for &{skaffold . <nil> {<nil> <nil> <nil> 0xc0009ec5a0 <nil> <nil> <nil>} [] {[] []} []} of type *latest.Artifact and pointer: 824648901184  subtask=-1 task=DevLoop
INFO[0000] Using kubectl context: minikube               subtask=-1 task=DevLoop
DEBU[0000] getting client config for kubeContext: `minikube`  subtask=-1 task=DevLoop
DEBU[0000] Running command: [minikube version --output=json]  subtask=-1 task=DevLoop
DEBU[0000] Command output: [{"commit":"362d5fdc0a3dbee389b3d3f1034e8023e72bd3a7","minikubeVersion":"v1.25.2"}
]  subtask=-1 task=DevLoop
DEBU[0000] Running command: [/usr/local/bin/minikube docker-env --shell none -p minikube --user=skaffold]  subtask=-1 task=DevLoop
DEBU[0000] Command output: [DOCKER_CERT_PATH=/Users/peterseo/.minikube/certs
MINIKUBE_ACTIVE_DOCKERD=minikube
DOCKER_TLS_VERIFY=1
DOCKER_HOST=tcp://192.168.64.3:2376
]  subtask=-1 task=DevLoop
DEBU[0000] setting Docker user agent to skaffold-v1.39.2  subtask=-1 task=DevLoop
INFO[0000] Using minikube docker daemon at tcp://192.168.64.3:2376  subtask=-1 task=DevLoop
DEBU[0000] CLI platforms provided: ""                    subtask=-1 task=DevLoop
DEBU[0000] platforms detected from active kubernetes cluster nodes: ""  subtask=-1 task=DevLoop
DEBU[0000] platforms selected for artifact "skaffold": ""  subtask=-1 task=DevLoop
DEBU[0000] Using builder: local                          subtask=-1 task=DevLoop
DEBU[0000] push value not present in NewBuilder, defaulting to false because cluster.PushImages is false  subtask=-1 task=DevLoop
INFO[0000] build concurrency first set to 1 parsed from *local.Builder[0]  subtask=-1 task=DevLoop
INFO[0000] final build concurrency value is 1            subtask=-1 task=DevLoop
Generating tags...
 - skaffold -> DEBU[0000] Running command: [git describe --tags --always]  subtask=-1 task=Build
DEBU[0000] generating tag: unable to find git commit: running [git describe --tags --always]
 - stdout: ""
 - stderr: "fatal: (현재 폴더 또는 상위 폴더 중 일부가) 깃 저장소가 아닙니다: .git\n"
 - cause: exit status 128  subtask=skaffold task=Build
DEBU[0000] Using a fall-back tagger                      subtask=skaffold task=Build
skaffold:latest
Some taggers failed. Rerun with -vdebug for errors.
INFO[0000] Tags generated in 8.703549ms                  subtask=-1 task=Build
Checking cache...
DEBU[0000] Running command: [java -version]              subtask=-1 task=Build
DEBU[0000] Using wrapper for gradlew: gradle             subtask=-1 task=Build
DEBU[0000] Running command: [/Users/peterseo/study/aws/skaffold/gradlew _skaffoldFailIfJibOutOfDate -Djib.requiredVersion=1.4.0 :_jibSkaffoldFilesV2 -q --console=plain]  subtask=-1 task=Build
 - skaffold: Error checking cache.
DEBU[0001] Running command: [tput colors]                subtask=-1 task=DevLoop
DEBU[0001] Command output: [256
]                        subtask=-1 task=DevLoop
getting hash for artifact "skaffold": getting dependencies for "skaffold": could not fetch dependencies for workspace .: initial Jib dependency refresh failed: failed to get Jib dependencies: running [/Users/peterseo/study/aws/skaffold/gradlew _skaffoldFailIfJibOutOfDate -Djib.requiredVersion=1.4.0 :_jibSkaffoldFilesV2 -q --console=plain]
 - stdout: ""
 - stderr: "\nFAILURE: Build failed with an exception.\n\n* What went wrong:\nTask '_skaffoldFailIfJibOutOfDate' not found in root project 'skaffold'.\n\n* Try:\nRun gradlew tasks to get a list of available tasks. Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.\n\n* Get more help at https://help.gradle.org\n\nBUILD FAILED in 602ms\n"
 - cause: exit status 1
DEBU[0001] exporting metrics                             subtask=-1 task=DevLoop

 ㅇ '(현재 폴더 또는 상위 폴더 중 일부가) 깃 저장소가 아닙니다'라는 문구를 확인하여 git init을 실행하였다.

 

 

 ㅇ git을 초기화 하고 모든 소스를 커밋한 상태로 만들어서 해결함.

 

 

ㅁ skaffold run 시 image pull 에러

 ㅇ skaffold build까지 성공하고 pod를 실행하는 과정에서 docker image를 가져올 수 없다는 에러가 발생함.

 

 ㅇ docker hub에 로그인을 하지 않은 상태여서 로그인 후 정상 작동 확인함.

 

 

ㅁ 함께 보면 좋은 사이트

GitHub - GoogleContainerTools/jib: 🏗 Build container images for your Java applications.

 ㅇ jib gradle quick start

 

 

Image Repository Handling

 ㅇ skaffold 이미지 저장소 처리방법