=== B-7 7단계: app2 로 로그인 ===
로그인 폼: https://auth.hyeonworks.com/realms/keycloak-patterns/login-actions/authenticate?session_co
로그인 결과: 401 · 본문 0바이트

=== 업스트림이 받은 헤더 (echo 가 그대로 돌려준다) ===
{
  "headers" : {
    "host" : [ "app2.hyeonworks.com" ],
    "user-agent" : [ "curl/8.5.0" ],
    "accept" : [ "*/*" ],
    "accept-encoding" : [ "gzip" ],
    "cookie" : [ "_oauth2_proxy=djIuWDI5aGRYUm9NbDl3Y205NGVTMDFaR05rTURjNVpUQmlaVE5sWWpoaE9UVXdZelptWm1FMVpHTTVZamhpTVEuWDhMSFFnVnYtenRXV0hzTFMzVVN0QQ==|1789631924|yGT15uSP74BddTXAVgSvVGaz65hygKtaju9CDM3lHlc=" ],
    "x-forwarded-email" : [ "labuser@example.invalid" ],
    "x-forwarded-host" : [ "app2.hyeonworks.com" ],
    "x-forwarded-port" : [ "443" ],
    "x-forwarded-preferred-username" : [ "labuser" ],
    "x-forwarded-proto" : [ "https" ],
    "x-forwarded-server" : [ "traefik-5d6fcf895-xmqp6" ],
    "x-forwarded-user" : [ "07d3be2a-9f22-4779-a211-e530c8b7ff3b" ],
    "x-real-ip" : [ "192.168.122.1" ]
  },
  "remoteAddr" : "192.168.122.1",
  "localAddr" : "10.42.0.35",
  "scheme" : "https",
  "secure" : true,
  "serverName" : "app2.hyeonworks.com",
  "serverPort" : 443,
  "requestUrl" : "https://app2.hyeonworks.com/api/echo"
}
=== 쿠키 (값은 길이만) ===
auth.hyeonworks.com      KC_AUTH_SESSION_HASH       64자
auth.hyeonworks.com      AUTH_SESSION_ID            165자
auth.hyeonworks.com      KEYCLOAK_IDENTITY          594자
auth.hyeonworks.com      KEYCLOAK_SESSION           64자
app2.hyeonworks.com      _oauth2_proxy              176자

=== B-7 8단계: Redis ===
_oauth2_proxy-5dcd079e0be3eb8a950c6ffa5dc9b8b1
bff:session:sessions:b66634a2-1381-4071-8ceb-0a006fbe1327
bff:session:sessions:c5f7b0c7-cd17-4749-bf3e-6d42c814bb1c
dbsize=3
