프로젝트에서 Docker을 사용하기 위해 오랜만에 docker desktop 설정 도중, 다음과 같은 문제가 발생했다.
발생 상황은 다음과 같다.

• Docker 로그아웃 후 재로그인 시도
• 기존에 로그인이 되어있던 상황

C:\Users\userName>docker login

USING WEB-BASED LOGIN

i Info → To sign in with credentials on the command line, use 'docker login -u <username>'


Your one-time device confirmation code is: XXXX-XXXX
Press ENTER to open your browser or submit your device code here: https://login.docker.com/activate

Waiting for authentication in the browser…

Error response from daemon: Get "https://registry-1.docker.io/v2/": unauthorized: incorrect username or password

해결방법

• 도커 커뮤니티 관련 게시물 참고
  https://forums.docker.com/t/error-response-from-daemon-get-https-registry-1-docker-io-v2-unauthorized-incorrect-username-or-password/130981/14

C:\Users\userName>docker login -u username

i Info → A Personal Access Token (PAT) can be used instead.
         To create a PAT, visit https://app.docker.com/settings


Password:

Login Succeeded