fix: 하네스 제거 및 keycloak 문서 보강

This commit is contained in:
DongHyeonka
2026-07-25 12:53:13 +09:00
parent 6c53ded9cb
commit d71669eb59
2329 changed files with 138239 additions and 172816 deletions
@@ -1 +0,0 @@
../../../vault/10-projects/diagrams/keycloak-patterns/architecture-p1a-edge-no-google-2026-05-26.drawio
@@ -0,0 +1,89 @@
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@@ -1 +0,0 @@
../../../vault/10-projects/diagrams/keycloak-patterns/architecture-p1b-edge-google-2026-05-26.drawio
@@ -0,0 +1,92 @@
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@@ -1 +0,0 @@
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@@ -0,0 +1,80 @@
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<mxCell id="e2" value="② OIDC + PKCE" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.7;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;strokeColor=#1F6FEB;strokeWidth=2.5;fontSize=11;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;" edge="1" parent="1" source="spa" target="keycloak">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<mxCell id="e3" value="③ Bearer access_token" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.3;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;strokeColor=#1F6FEB;strokeWidth=2.5;fontSize=11;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;" edge="1" parent="1" source="spa" target="backend">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<mxCell id="e4" value="④ JWKS (검증 키)" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.8;exitDx=0;exitDy=0;entryX=0.5;entryY=0;entryDx=0;entryDy=0;strokeColor=#1F6FEB;strokeWidth=2.5;fontSize=11;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;" edge="1" parent="1" source="backend" target="keycloak">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<!-- CALLOUT -->
<mxCell id="callout" value="⚠️ &lt;b&gt;SPA 토큰 보유 → XSS surface 확대&lt;/b&gt;&#10;&#10;access/refresh token 이 브라우저 메모리/스토리지에 노출 가능.&#10;XSS 1건 = 토큰 탈취 = 사용자 세션 전체 탈취.&#10;✅ refresh token 보호 필요 시 BFF(P1) 또는 httpOnly cookie 전략 검토." style="rounded=8;whiteSpace=wrap;html=1;fillColor=#FEF2F2;strokeColor=#DC2626;strokeWidth=1.5;fontSize=11;fontFamily=Pretendard,Helvetica;fontColor=#7F1D1D;align=left;verticalAlign=top;spacingLeft=12;spacingTop=8;" vertex="1" parent="1">
<mxGeometry x="120" y="420" width="600" height="120" as="geometry" />
</mxCell>
<!-- LEGEND -->
<mxCell id="leg-title" value="Legend" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=11;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#374151;" vertex="1" parent="1">
<mxGeometry x="120" y="580" width="100" height="20" as="geometry" />
</mxCell>
<mxCell id="leg-spa" value="파란 박스 + 파란 굵은 화살 = SPA-direct OIDC 핵심 (주인공: SPA + 토큰 흐름)" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=11;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;" vertex="1" parent="1">
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</mxCell>
<mxCell id="leg-zone" value="파란 zone = Cluster Internal (Edge proxy 없음, P1 과의 결정적 차이)" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=11;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;" vertex="1" parent="1">
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</mxCell>
<mxCell id="footer" value="v1 (minimalist) · 2026-05-26" style="text;html=1;strokeColor=none;fillColor=none;align=right;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=10;fontStyle=2;fontFamily=Pretendard,Helvetica;fontColor=#9CA3AF;" vertex="1" parent="1">
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@@ -1 +0,0 @@
../../../vault/10-projects/diagrams/keycloak-patterns/architecture-p2b-cluster-internal-google-2026-05-26.drawio
@@ -0,0 +1,88 @@
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<mxCell id="subtitle" value="P2A 에 Google brokering 추가. SPA/Backend 코드 변경 없이 Keycloak Realm 설정만으로 Google SSO 가능한가?" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=12;fontStyle=0;fontFamily=Pretendard,Helvetica;fontColor=#6B7280;" vertex="1" parent="1">
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<mxCell id="grp-internal" value="Cluster Internal" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#FBFCFD;strokeColor=#1F6FEB;strokeWidth=2;dashed=0;fontSize=12;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;align=left;verticalAlign=top;spacingLeft=10;spacingTop=6;" vertex="1" parent="1">
<mxGeometry x="320" y="100" width="600" height="260" as="geometry" />
</mxCell>
<mxCell id="user" value="&lt;b&gt;User&lt;/b&gt;&#10;Browser + SPA" style="rounded=8;whiteSpace=wrap;html=1;fillColor=#FFFFFF;strokeColor=#57606A;strokeWidth=1.5;fontSize=12;fontFamily=Pretendard,Helvetica;fontColor=#24292F;align=center;verticalAlign=middle;" vertex="1" parent="1">
<mxGeometry x="120" y="190" width="140" height="80" as="geometry" />
</mxCell>
<mxCell id="spa" value="&lt;b&gt;vanilla JS SPA&lt;/b&gt;&#10;nginx + PKCE" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#FFFFFF;strokeColor=#57606A;strokeWidth=1.5;fontSize=12;fontFamily=Pretendard,Helvetica;fontColor=#24292F;align=center;verticalAlign=middle;" vertex="1" parent="1">
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</mxCell>
<mxCell id="backend" value="&lt;b&gt;Backend RS&lt;/b&gt;&#10;Spring Security 6.x" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#FFFFFF;strokeColor=#57606A;strokeWidth=1.5;fontSize=12;fontFamily=Pretendard,Helvetica;fontColor=#24292F;align=center;verticalAlign=middle;" vertex="1" parent="1">
<mxGeometry x="580" y="140" width="200" height="60" as="geometry" />
</mxCell>
<!-- Keycloak: 주인공 (brokering의 핵심) -->
<mxCell id="keycloak" value="&lt;b&gt;Keycloak&lt;/b&gt;&#10;+ Google IdP brokering" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#EFF6FF;strokeColor=#1F6FEB;strokeWidth=2.5;fontSize=12;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;align=center;verticalAlign=middle;" vertex="1" parent="1">
<mxGeometry x="580" y="240" width="200" height="80" as="geometry" />
</mxCell>
<!-- Google (외부, 점선) -->
<mxCell id="google" value="&lt;b&gt;Google OIDC&lt;/b&gt;&#10;(External IdP)" style="rounded=8;whiteSpace=wrap;html=1;fillColor=#F6F8FA;strokeColor=#D0D7DE;strokeWidth=1.5;dashed=1;fontSize=12;fontFamily=Pretendard,Helvetica;fontColor=#6B7280;align=center;verticalAlign=middle;" vertex="1" parent="1">
<mxGeometry x="960" y="240" width="180" height="80" as="geometry" />
</mxCell>
<!-- EDGES -->
<mxCell id="e1" value="① HTTPS GET" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;strokeColor=#57606A;strokeWidth=1.5;fontSize=11;fontFamily=Pretendard,Helvetica;fontColor=#24292F;" edge="1" parent="1" source="user" target="spa">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<mxCell id="e2" value="② OIDC + PKCE" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.7;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;strokeColor=#57606A;strokeWidth=1.5;fontSize=11;fontFamily=Pretendard,Helvetica;fontColor=#24292F;" edge="1" parent="1" source="spa" target="keycloak">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<mxCell id="e3" value="③ Google 로그인" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;strokeColor=#1F6FEB;strokeWidth=2.5;fontSize=11;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;" edge="1" parent="1" source="keycloak" target="google">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<mxCell id="e4" value="④ id_token" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0;exitY=0.8;exitDx=0;exitDy=0;entryX=1;entryY=0.8;entryDx=0;entryDy=0;strokeColor=#57606A;strokeWidth=1.5;fontSize=11;fontFamily=Pretendard,Helvetica;fontColor=#24292F;dashed=1;" edge="1" parent="1" source="google" target="keycloak">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<mxCell id="e5" value="⑤ Bearer + JWKS" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.3;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;strokeColor=#57606A;strokeWidth=1.5;fontSize=11;fontFamily=Pretendard,Helvetica;fontColor=#24292F;" edge="1" parent="1" source="spa" target="backend">
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<!-- CALLOUT -->
<mxCell id="callout" value="⚠️ &lt;b&gt;같은 함정 — First Broker Login Flow auto-linking + SPA XSS&lt;/b&gt;&#10;&#10;P1B 의 email-match 함정 + P2A 의 XSS 함정이 모두 적용됨.&#10;✅ Confirm Link Existing Account 강제 + email_verified=true&#10;✅ XSS 방지 (CSP / sanitize) + BFF 필요 시 P1 으로 이주." style="rounded=8;whiteSpace=wrap;html=1;fillColor=#FEF2F2;strokeColor=#DC2626;strokeWidth=1.5;fontSize=11;fontFamily=Pretendard,Helvetica;fontColor=#7F1D1D;align=left;verticalAlign=top;spacingLeft=12;spacingTop=8;" vertex="1" parent="1">
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<!-- LEGEND -->
<mxCell id="leg-title" value="Legend" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=11;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#374151;" vertex="1" parent="1">
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</mxCell>
<mxCell id="leg-kc" value="파란 박스 + 파란 굵은 화살 = Google brokering 핵심 (주인공)" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=11;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;" vertex="1" parent="1">
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</mxCell>
<mxCell id="leg-ext" value="회색 점선 박스 = External (Google OIDC)" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=11;fontFamily=Pretendard,Helvetica;fontColor=#6B7280;" vertex="1" parent="1">
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@@ -1 +0,0 @@
../../../vault/10-projects/diagrams/keycloak-patterns/architecture-p3a-single-ec2-no-google-2026-05-26.drawio
@@ -0,0 +1,105 @@
<mxfile host="Claude Code" agent="ca-superpowers + diagram-standards v2 minimalist" version="24.0.0" type="device">
<diagram name="P3A-Single-EC2" id="p3a-v3">
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<!-- HEADER -->
<mxCell id="title" value="P3A — Single EC2 (no Google)" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=20;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#1F2937;" vertex="1" parent="1">
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<mxCell id="subtitle" value="사용자 요청이 어떤 컴포넌트를 어떤 순서로 거치며 인증되는가?" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=12;fontStyle=0;fontFamily=Pretendard,Helvetica;fontColor=#6B7280;" vertex="1" parent="1">
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<!-- TRUST BOUNDARY: Single EC2 -->
<mxCell id="grp-ec2" value="Single EC2 (localhost)" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#FBFCFD;strokeColor=#1F6FEB;strokeWidth=2;dashed=0;fontSize=12;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;align=left;verticalAlign=top;spacingLeft=10;spacingTop=6;" vertex="1" parent="1">
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<!-- USER (외부, 회색 무채색) -->
<mxCell id="user" value="&lt;b&gt;User&lt;/b&gt;&#10;Browser" style="rounded=8;whiteSpace=wrap;html=1;fillColor=#FFFFFF;strokeColor=#57606A;strokeWidth=1.5;fontSize=12;fontFamily=Pretendard,Helvetica;fontColor=#24292F;align=center;verticalAlign=middle;" vertex="1" parent="1">
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</mxCell>
<!-- NGINX (기본 회색) -->
<mxCell id="nginx" value="&lt;b&gt;nginx&lt;/b&gt;&#10;SPA + reverse proxy" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#FFFFFF;strokeColor=#57606A;strokeWidth=1.5;fontSize=12;fontFamily=Pretendard,Helvetica;fontColor=#24292F;align=center;verticalAlign=middle;" vertex="1" parent="1">
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<!-- BACKEND (기본 회색) -->
<mxCell id="backend" value="&lt;b&gt;Spring Boot RS&lt;/b&gt;&#10;JWT validator · :8080" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#FFFFFF;strokeColor=#57606A;strokeWidth=1.5;fontSize=12;fontFamily=Pretendard,Helvetica;fontColor=#24292F;align=center;verticalAlign=middle;" vertex="1" parent="1">
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<!-- KEYCLOAK (주인공 — 강조색 파랑) -->
<mxCell id="keycloak" value="&lt;b&gt;Keycloak&lt;/b&gt;&#10;OIDC · :8180" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#EFF6FF;strokeColor=#1F6FEB;strokeWidth=2.5;fontSize=12;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;align=center;verticalAlign=middle;" vertex="1" parent="1">
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<!-- POSTGRES (cylinder, 기본 회색) -->
<mxCell id="postgres" value="&lt;b&gt;PostgreSQL&lt;/b&gt;" style="shape=cylinder3;whiteSpace=wrap;html=1;boundedLbl=1;backgroundOutline=1;size=15;fillColor=#FFFFFF;strokeColor=#57606A;strokeWidth=1.5;fontSize=12;fontFamily=Pretendard,Helvetica;fontColor=#24292F;align=center;verticalAlign=middle;" vertex="1" parent="1">
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</mxCell>
<!-- ================= EDGES (5개, 단순화) ================= -->
<!-- ① User → nginx (HTTPS) -->
<mxCell id="e1" value="① HTTPS GET /" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.3;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;strokeColor=#57606A;strokeWidth=1.5;fontSize=11;fontFamily=Pretendard,Helvetica;fontColor=#24292F;" edge="1" parent="1" source="user" target="nginx">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<!-- ② User → Keycloak (OIDC) — 강조 (critical path) -->
<mxCell id="e2" value="② OIDC + PKCE" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.7;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;strokeColor=#1F6FEB;strokeWidth=2.5;fontSize=11;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;" edge="1" parent="1" source="user" target="keycloak">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<!-- ③ User → nginx (API call) — 두 번째 호출 (단순화: 단일 라벨로) -->
<mxCell id="e3" value="③ Bearer token + /api" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.8;entryDx=0;entryDy=0;strokeColor=#57606A;strokeWidth=1.5;fontSize=11;fontFamily=Pretendard,Helvetica;fontColor=#24292F;" edge="1" parent="1" source="user" target="nginx">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<!-- ④ nginx → Backend -->
<mxCell id="e4" value="④ proxy_pass" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;strokeColor=#57606A;strokeWidth=1.5;fontSize=11;fontFamily=Pretendard,Helvetica;fontColor=#24292F;" edge="1" parent="1" source="nginx" target="backend">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<!-- ⑤ Backend → Keycloak (JWKS) — 강조 (관계가 중요) -->
<mxCell id="e5" value="⑤ JWKS" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.3;exitY=1;exitDx=0;exitDy=0;entryX=1;entryY=0.3;entryDx=0;entryDy=0;strokeColor=#1F6FEB;strokeWidth=2;fontSize=11;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;" edge="1" parent="1" source="backend" target="keycloak">
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<!-- Keycloak → PostgreSQL (보조, 번호 없음) -->
<mxCell id="e-kc-pg" value="JDBC" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.8;exitY=1;exitDx=0;exitDy=0;entryX=0.3;entryY=0;entryDx=0;entryDy=0;strokeColor=#57606A;strokeWidth=1;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#6B7280;dashed=1;" edge="1" parent="1" source="keycloak" target="postgres">
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<!-- ================= CALLOUT (1개만 — 핵심 함정) ================= -->
<mxCell id="callout" value="⚠️ &lt;b&gt;KC_HOSTNAME 함정&lt;/b&gt;&#10;&#10;Browser는 public host, backend는 localhost로&#10;Keycloak 호출 → JWT iss claim mismatch.&#10;✅ KC_HOSTNAME=&amp;lt;public-host&amp;gt; 명시." style="rounded=8;whiteSpace=wrap;html=1;fillColor=#FEF2F2;strokeColor=#DC2626;strokeWidth=1.5;fontSize=11;fontFamily=Pretendard,Helvetica;fontColor=#7F1D1D;align=left;verticalAlign=top;spacingLeft=12;spacingTop=8;" vertex="1" parent="1">
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<!-- ================= LEGEND (2 항목) ================= -->
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@@ -1 +0,0 @@
../../../vault/10-projects/diagrams/keycloak-patterns/architecture-p3b-single-ec2-google-2026-05-26.drawio
@@ -0,0 +1,106 @@
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<mxCell id="subtitle" value="P3A 에 Google 을 붙이려면 왜 EC2 외부 HTTPS endpoint(tunnel/RP)가 강제되는가?" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=12;fontStyle=0;fontFamily=Pretendard,Helvetica;fontColor=#6B7280;" vertex="1" parent="1">
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<!-- Public HTTPS zone (강조 — Google 요구 사항) -->
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<!-- EC2 zone -->
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<mxCell id="user" value="&lt;b&gt;User&lt;/b&gt;&#10;Browser" style="rounded=8;whiteSpace=wrap;html=1;fillColor=#FFFFFF;strokeColor=#57606A;strokeWidth=1.5;fontSize=12;fontFamily=Pretendard,Helvetica;fontColor=#24292F;align=center;verticalAlign=middle;" vertex="1" parent="1">
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<!-- Tunnel: 주인공 (public HTTPS 강제) -->
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<!-- Google (외부, 점선) -->
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<!-- EDGES -->
<mxCell id="e1" value="① HTTPS" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;strokeColor=#FB923C;strokeWidth=2.5;fontSize=11;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#9A3412;" edge="1" parent="1" source="user" target="tunnel">
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<mxCell id="e4" value="④ JWKS" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;exitDx=0;exitDy=0;entryX=1;entryY=0.2;entryDx=0;entryDy=0;strokeColor=#57606A;strokeWidth=1.5;fontSize=11;fontFamily=Pretendard,Helvetica;fontColor=#24292F;" edge="1" parent="1" source="backend" target="keycloak">
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<mxCell id="callout" value="⚠️ &lt;b&gt;KC_HOSTNAME = 공개 hostname (P3A 와 결정적 차이)&lt;/b&gt;&#10;&#10;Google 이 검증하는 redirect_uri 와 Keycloak issuer 가 모두 공개 HTTPS host 여야 함.&#10;P3A 처럼 localhost 로 설정 시 Google 흐름 실패 / issuer 불일치 401.&#10;✅ KC_HOSTNAME=&lt;public&gt; + Keycloak Realm Client redirect_uri = public URL." style="rounded=8;whiteSpace=wrap;html=1;fillColor=#FEF2F2;strokeColor=#DC2626;strokeWidth=1.5;fontSize=11;fontFamily=Pretendard,Helvetica;fontColor=#7F1D1D;align=left;verticalAlign=top;spacingLeft=12;spacingTop=8;" vertex="1" parent="1">
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@@ -1 +0,0 @@
../../../../vault/10-projects/diagrams/keycloak-patterns/archived/architecture-p3a-single-ec2-no-google-2026-05-26-v1.drawio
@@ -0,0 +1,113 @@
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<!-- TITLE -->
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<!-- EXTERNAL: User -->
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<!-- nginx -->
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<!-- Keycloak -->
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<!-- PostgreSQL -->
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<!-- EDGES -->
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</diagram>
</mxfile>
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../../../../vault/10-projects/diagrams/keycloak-patterns/archived/architecture-p3a-single-ec2-no-google-2026-05-26-v2.drawio
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<mxfile host="Claude Code" agent="ca-superpowers + diagram-standards v1" version="24.0.0" type="device">
<diagram name="P3A-Single-EC2-no-Google-Conference" id="p3a-conf">
<mxGraphModel dx="2000" dy="1100" grid="0" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="2000" pageHeight="1200" math="0" shadow="0">
<root>
<mxCell id="0" />
<mxCell id="1" parent="0" />
<!-- ================= HEADER ================= -->
<mxCell id="header-title" value="P3A — Single EC2 (no Google federation)" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=22;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#1F2937;" vertex="1" parent="1">
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<mxCell id="header-question" value="❓ 질문: 단일 EC2 호스트(localhost)에 SPA + Spring Boot + Keycloak 이 동거할 때, 사용자 요청이 어떤 컴포넌트를 어떤 순서로 거치며 인증·인가·서비스되는가? KC_HOSTNAME 함정은 어디에서 발생하는가?" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=12;fontStyle=0;fontFamily=Pretendard,Helvetica;fontColor=#4B5563;" vertex="1" parent="1">
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<mxCell id="header-project" value="📁 Project: keycloak-patterns | branch: develop-keycloak-single-ec2-no-google | status: documented-only" style="text;html=1;strokeColor=none;fillColor=none;align=right;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=11;fontStyle=2;fontFamily=Pretendard,Helvetica;fontColor=#6B7280;" vertex="1" parent="1">
<mxGeometry x="1050" y="20" width="900" height="20" as="geometry" />
</mxCell>
<!-- ================= NETWORK BOUNDARY: Public Internet ================= -->
<mxCell id="grp-internet" value="🌐 Public Internet (untrusted)" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#F6F8FA;strokeColor=#D0D7DE;strokeWidth=1;dashed=1;fontSize=11;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#6B7280;align=left;verticalAlign=top;spacingLeft=12;spacingTop=8;" vertex="1" parent="1">
<mxGeometry x="40" y="120" width="320" height="880" as="geometry" />
</mxCell>
<!-- USER -->
<mxCell id="user" value="&lt;b style='font-size:13px'&gt;User Browser&lt;/b&gt;&#10;&#10;Role: SPA 호출 + OIDC redirect&#10;Stack: Chromium/Firefox/Safari&#10;Endpoint: HTTPS :443&#10;&#10;Owner: End user" style="rounded=8;whiteSpace=wrap;html=1;fillColor=#FFFFFF;strokeColor=#57606A;strokeWidth=1.5;fontSize=11;fontStyle=0;fontFamily=Pretendard,Helvetica;fontColor=#24292F;align=center;verticalAlign=middle;" vertex="1" parent="1">
<mxGeometry x="80" y="480" width="240" height="140" as="geometry" />
</mxCell>
<!-- ================= NETWORK BOUNDARY: Public-facing edge ================= -->
<mxCell id="grp-edge-net" value="🔓 Public-facing edge (HTTPS termination)" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#FEF9C3;strokeColor=#EAB308;strokeWidth=1;dashed=1;fontSize=11;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#854D0E;align=left;verticalAlign=top;spacingLeft=12;spacingTop=8;" vertex="1" parent="1">
<mxGeometry x="400" y="120" width="380" height="880" as="geometry" />
</mxCell>
<!-- ================= TRUST BOUNDARY: Single EC2 ================= -->
<mxCell id="grp-ec2" value="🔒 Trust Boundary: Single EC2 host (localhost docker-compose)" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#FBFCFD;strokeColor=#1F6FEB;strokeWidth=2.5;dashed=0;fontSize=12;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;align=left;verticalAlign=top;spacingLeft=12;spacingTop=8;" vertex="1" parent="1">
<mxGeometry x="820" y="120" width="1140" height="880" as="geometry" />
</mxCell>
<!-- NGINX -->
<mxCell id="nginx" value="&lt;b style='font-size:13px'&gt;nginx 1.27&lt;/b&gt;&#10;&#10;Role: SPA static serving&#10; + reverse proxy → backend&#10;Stack: nginx (alpine docker)&#10;Endpoint: :443 (TLS) / :80 (HTTP)&#10;Capacity: ~5000 conn (default)&#10;&#10;Owner: 본인 (vanilla JS 호스팅)" style="rounded=8;whiteSpace=wrap;html=1;fillColor=#FFF7ED;strokeColor=#FB923C;strokeWidth=2;fontSize=11;fontStyle=0;fontFamily=Pretendard,Helvetica;fontColor=#9A3412;align=center;verticalAlign=middle;" vertex="1" parent="1">
<mxGeometry x="450" y="180" width="280" height="180" as="geometry" />
</mxCell>
<!-- BACKEND -->
<mxCell id="backend" value="&lt;b style='font-size:13px'&gt;Spring Boot Resource Server&lt;/b&gt;&#10;&#10;Role: 비즈니스 API + JWT validation&#10; (iss / aud / exp / signature)&#10;Stack: Spring Boot 3.4 / Java 21&#10; + Spring Security 6.x&#10;Endpoint: localhost:8080&#10;Capacity: 1 instance (single-host)&#10;&#10;Owner: 본인 (백엔드)" style="rounded=8;whiteSpace=wrap;html=1;fillColor=#D4EDDA;strokeColor=#155724;strokeWidth=2.5;fontSize=11;fontStyle=0;fontFamily=Pretendard,Helvetica;fontColor=#155724;align=center;verticalAlign=middle;" vertex="1" parent="1">
<mxGeometry x="1620" y="180" width="320" height="180" as="geometry" />
</mxCell>
<!-- KEYCLOAK -->
<mxCell id="keycloak" value="&lt;b style='font-size:13px'&gt;Keycloak 25.x&lt;/b&gt;&#10;&#10;Role: OIDC Authorization Server&#10; (realm + client + user DB)&#10;Stack: Keycloak 25.x (docker)&#10;Endpoint: localhost:8180&#10;Config: KC_HOSTNAME=&amp;lt;public-host&amp;gt;&#10; KC_HTTP_ENABLED=true&#10;Capacity: 1 instance&#10;&#10;Owner: 본인 (인증)" style="rounded=8;whiteSpace=wrap;html=1;fillColor=#E0E7FF;strokeColor=#3730A3;strokeWidth=2.5;fontSize=11;fontStyle=0;fontFamily=Pretendard,Helvetica;fontColor=#3730A3;align=center;verticalAlign=middle;" vertex="1" parent="1">
<mxGeometry x="980" y="500" width="320" height="200" as="geometry" />
</mxCell>
<!-- POSTGRES -->
<mxCell id="postgres" value="&lt;b style='font-size:13px'&gt;PostgreSQL 16&lt;/b&gt;&#10;&#10;Role: Keycloak 사용자/realm DB&#10;Stack: postgres:16-alpine&#10;Endpoint: localhost:5432&#10;Capacity: 1 instance (no replica)&#10;&#10;Owner: 본인 (Keycloak 백엔드)" style="shape=cylinder3;whiteSpace=wrap;html=1;boundedLbl=1;backgroundOutline=1;size=15;fillColor=#F8D7DA;strokeColor=#842029;strokeWidth=2;fontSize=11;fontStyle=0;fontFamily=Pretendard,Helvetica;fontColor=#842029;align=center;verticalAlign=middle;" vertex="1" parent="1">
<mxGeometry x="1620" y="510" width="280" height="180" as="geometry" />
</mxCell>
<!-- ================= EDGES ================= -->
<!-- ① User → nginx: HTTPS SPA request -->
<mxCell id="e1" value="① HTTPS GET / (HTML/JS)&#10; payload: ~50KB (initial SPA bundle)&#10; p99: ~80ms (cold) / ~10ms (cache)" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.2;exitDx=0;exitDy=0;entryX=0;entryY=0.3;entryDx=0;entryDy=0;strokeColor=#1F6FEB;strokeWidth=3;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;fontStyle=1;" edge="1" parent="1" source="user" target="nginx">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<!-- ② nginx → User: SPA bundle (response) -->
<mxCell id="e2" value="② static bundle&#10; HTML / JS / CSS" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0;exitY=0.6;exitDx=0;exitDy=0;entryX=1;entryY=0.7;entryDx=0;entryDy=0;strokeColor=#57606A;strokeWidth=1.5;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#57606A;dashed=1;" edge="1" parent="1" source="nginx" target="user">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<!-- ③ User → Keycloak: OIDC redirect (browser) -->
<mxCell id="e3" value="③ HTTPS GET /realms/&amp;lt;r&amp;gt;/protocol/openid-connect/auth&#10; OIDC Authorization Code + PKCE&#10; query: ?client_id=spa&amp;code_challenge=...&amp;redirect_uri=...&#10; (browser redirect, full URL navigation)" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.8;exitDx=0;exitDy=0;entryX=0;entryY=0.3;entryDx=0;entryDy=0;strokeColor=#3730A3;strokeWidth=3;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#3730A3;fontStyle=1;" edge="1" parent="1" source="user" target="keycloak">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<!-- ④ Keycloak → User: token (after login) -->
<mxCell id="e4" value="④ POST /token (auth code → tokens)&#10; { access_token, refresh_token, id_token }&#10; p99 ~150ms (PBKDF2 password hash + JWT sign)" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0;exitY=0.5;exitDx=0;exitDy=0;entryX=1;entryY=0.9;entryDx=0;entryDy=0;strokeColor=#57606A;strokeWidth=1.5;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#57606A;dashed=1;" edge="1" parent="1" source="keycloak" target="user">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<!-- ⑤ User → nginx (Bearer token, API call) -->
<mxCell id="e5" value="⑤ HTTPS GET /api/v1/&amp;lt;resource&amp;gt;&#10; Authorization: Bearer &amp;lt;access_token&amp;gt;&#10; (XHR/fetch, ~1000 QPS @ peak)&#10; p99 &amp;lt; 100ms (target)" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.4;exitDx=0;exitDy=0;entryX=0;entryY=0.6;entryDx=0;entryDy=0;strokeColor=#0969DA;strokeWidth=3;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#0969DA;fontStyle=1;" edge="1" parent="1" source="user" target="nginx">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<!-- ⑥ nginx → Backend (reverse proxy) -->
<mxCell id="e6" value="⑥ proxy_pass http://localhost:8080&#10; Authorization header forward&#10; (timeout: 30s, keepalive: 60s)" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;strokeColor=#155724;strokeWidth=3;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#155724;fontStyle=1;" edge="1" parent="1" source="nginx" target="backend">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<!-- ⑦ Backend → Keycloak (JWKS) -->
<mxCell id="e7" value="⑦ GET /realms/&amp;lt;r&amp;gt;/protocol/openid-connect/certs&#10; (JWKS — JWT signature 검증용 키)&#10; 캐시: 5분 (NimbusJwtDecoder default)" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.3;exitY=1;exitDx=0;exitDy=0;entryX=0.7;entryY=0;entryDx=0;entryDy=0;strokeColor=#155724;strokeWidth=1.5;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#155724;dashed=1;" edge="1" parent="1" source="backend" target="keycloak">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<!-- ⑧ Keycloak → PostgreSQL -->
<mxCell id="e8" value="⑧ JDBC SELECT realm/user/client&#10; (Hikari pool: 100 conn default)" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;strokeColor=#842029;strokeWidth=3;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#842029;fontStyle=1;" edge="1" parent="1" source="keycloak" target="postgres">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<!-- ❌ ERROR PATH: JWT iss mismatch -->
<mxCell id="e-err1" value="❌ ⓔ JWT iss mismatch&#10; → 401 Unauthorized&#10; 원인: KC_HOSTNAME 미설정 시 발생" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0;exitY=0.4;exitDx=0;exitDy=0;entryX=1;entryY=0.3;entryDx=0;entryDy=0;strokeColor=#DC2626;strokeWidth=2;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#DC2626;dashed=1;fontStyle=1;" edge="1" parent="1" source="backend" target="user">
<mxGeometry relative="1" as="geometry" />
</mxCell>
<!-- ================= CALLOUTS (gotchas) ================= -->
<!-- Callout 1: KC_HOSTNAME 함정 -->
<mxCell id="callout-kc-hostname" value="⚠️ &lt;b&gt;핵심 함정 #1 — KC_HOSTNAME&lt;/b&gt;&#10;&#10;Browser는 EC2 public hostname 으로 Keycloak 호출 →&#10;JWT 의 iss claim = 그 hostname.&#10;Backend는 localhost:8180 로 JWKS 조회 →&#10;iss 비교 시 mismatch → ⓔ 401 발생.&#10;&#10;✅ 해결: docker-compose env 에&#10; KC_HOSTNAME=&amp;lt;public-host&amp;gt;&#10; KC_HTTP_ENABLED=true&#10;&#10;📎 [[raw/branch-notes/develop-keycloak-iss-claim-hostname-mismatch]]" style="rounded=12;whiteSpace=wrap;html=1;fillColor=#FEF2F2;strokeColor=#DC2626;strokeWidth=2;dashed=0;fontSize=10;fontStyle=0;fontFamily=Pretendard,Helvetica;fontColor=#7F1D1D;align=left;verticalAlign=top;spacingLeft=12;spacingTop=8;" vertex="1" parent="1">
<mxGeometry x="980" y="740" width="320" height="200" as="geometry" />
</mxCell>
<!-- Callout 2: redirect_uri 함정 -->
<mxCell id="callout-redirect-uri" value="⚠️ &lt;b&gt;핵심 함정 #2 — redirect_uri&lt;/b&gt;&#10;&#10;Keycloak client 의 Valid Redirect URIs 등록 시&#10;localhost 만 등록 / browser 는 127.0.0.1 접근 →&#10;OIDC redirect 실패.&#10;&#10;✅ 해결: 등록과 접근 hostname 1:1 일치&#10; 또는 둘 다 등록.&#10;&#10;📎 [[raw/branch-notes/develop-keycloak-docker-compose-stack]]" style="rounded=12;whiteSpace=wrap;html=1;fillColor=#FEF2F2;strokeColor=#DC2626;strokeWidth=2;dashed=0;fontSize=10;fontStyle=0;fontFamily=Pretendard,Helvetica;fontColor=#7F1D1D;align=left;verticalAlign=top;spacingLeft=12;spacingTop=8;" vertex="1" parent="1">
<mxGeometry x="1340" y="740" width="280" height="200" as="geometry" />
</mxCell>
<!-- Callout 3: SPoF -->
<mxCell id="callout-spof" value="⚠️ &lt;b&gt;SPoF (단일 실패 지점)&lt;/b&gt;&#10;&#10;EC2 1대에 모든 컴포넌트 동거 →&#10;EC2 다운 = 전체 시스템 정지.&#10;&#10;P3A 는 학습 / 개발 환경 한정.&#10;운영급은 P2A (cluster-internal) +&#10;Keycloak HA cluster 검토.&#10;&#10;📎 [[raw/project-notes/keycloak-patterns-overview]] §10 Phase" style="rounded=12;whiteSpace=wrap;html=1;fillColor=#FEF2F2;strokeColor=#DC2626;strokeWidth=2;dashed=0;fontSize=10;fontStyle=0;fontFamily=Pretendard,Helvetica;fontColor=#7F1D1D;align=left;verticalAlign=top;spacingLeft=12;spacingTop=8;" vertex="1" parent="1">
<mxGeometry x="1660" y="740" width="280" height="200" as="geometry" />
</mxCell>
<!-- ================= LEGEND ================= -->
<mxCell id="grp-legend" value="📖 Legend" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#FFFFFF;strokeColor=#D0D7DE;strokeWidth=1;dashed=0;fontSize=12;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#24292F;align=left;verticalAlign=top;spacingLeft=12;spacingTop=8;" vertex="1" parent="1">
<mxGeometry x="40" y="1010" width="1920" height="160" as="geometry" />
</mxCell>
<!-- Legend: Boundaries -->
<mxCell id="leg-title-bnd" value="경계 (Boundaries)" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=11;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#374151;" vertex="1" parent="1">
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<mxCell id="leg-tb" value="Trust Boundary (파란 실선)" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#FBFCFD;strokeColor=#1F6FEB;strokeWidth=2;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;" vertex="1" parent="1">
<mxGeometry x="60" y="1065" width="200" height="22" as="geometry" />
</mxCell>
<mxCell id="leg-net-pub" value="Public Internet (회색 점선)" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#F6F8FA;strokeColor=#D0D7DE;dashed=1;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#6B7280;" vertex="1" parent="1">
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<mxCell id="leg-net-edge" value="Public edge zone (노란 점선)" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#FEF9C3;strokeColor=#EAB308;dashed=1;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#854D0E;" vertex="1" parent="1">
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<mxCell id="leg-warn" value="Critical / Warning (빨간 점선)" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#FEF2F2;strokeColor=#DC2626;dashed=1;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#7F1D1D;" vertex="1" parent="1">
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<!-- Legend: Component colors -->
<mxCell id="leg-title-cmp" value="컴포넌트 (§A.7 색상 시맨틱)" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=11;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#374151;" vertex="1" parent="1">
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<mxCell id="leg-user" value="User / 외부 (흰색)" style="rounded=8;whiteSpace=wrap;html=1;fillColor=#FFFFFF;strokeColor=#57606A;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#24292F;" vertex="1" parent="1">
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</mxCell>
<mxCell id="leg-proxy" value="Edge / Proxy / GW (주황)" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#FFF7ED;strokeColor=#FB923C;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#9A3412;" vertex="1" parent="1">
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<mxCell id="leg-backend" value="App / Backend (초록)" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#D4EDDA;strokeColor=#155724;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#155724;" vertex="1" parent="1">
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<mxCell id="leg-auth" value="Auth / Identity (남색)" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#E0E7FF;strokeColor=#3730A3;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#3730A3;" vertex="1" parent="1">
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<mxCell id="leg-db" value="Data store (빨강)" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#F8D7DA;strokeColor=#842029;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#842029;" vertex="1" parent="1">
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<mxCell id="leg-external" value="External / 3rd-party (회색 점선)" style="rounded=8;whiteSpace=wrap;html=1;fillColor=#F6F8FA;strokeColor=#D0D7DE;dashed=1;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#6B7280;" vertex="1" parent="1">
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<!-- Legend: Edge semantics -->
<mxCell id="leg-title-edge" value="화살표 (Edges)" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=11;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#374151;" vertex="1" parent="1">
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<mxCell id="leg-edge-hot" value="굵은 실선 (3px) — Critical / Hot path (sync request)" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#1F6FEB;" vertex="1" parent="1">
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<mxCell id="leg-edge-aux" value="얇은 점선 — Auxiliary (JWKS, cache lookup, etc.)" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#155724;" vertex="1" parent="1">
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<mxCell id="leg-edge-err" value="빨간 점선 — Error path (Failure mode 표시)" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#DC2626;" vertex="1" parent="1">
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<!-- Legend: Symbols -->
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<mxCell id="leg-sym-step" value="① ② ③ ... — Numbered flow (읽기 순서)" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#374151;" vertex="1" parent="1">
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<mxCell id="leg-sym-err" value="❌ ⓔ — Error step (라벨 시작에 표시)" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#DC2626;" vertex="1" parent="1">
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<mxCell id="leg-sym-warn" value="⚠️ — Callout: 비자명한 함정 / 결정 / 위협" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#7F1D1D;" vertex="1" parent="1">
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<mxCell id="leg-sym-src" value="📎 — Source wikilink (사실 출처 / 검증 가능)" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#4B5563;" vertex="1" parent="1">
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<!-- Legend: Scale annotation explanation -->
<mxCell id="leg-title-scale" value="스케일 표기" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=11;fontStyle=1;fontFamily=Pretendard,Helvetica;fontColor=#374151;" vertex="1" parent="1">
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<mxCell id="leg-scale-qps" value="QPS — Queries per second" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#374151;" vertex="1" parent="1">
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<mxCell id="leg-scale-p99" value="p99 — 99th percentile latency" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=10;fontFamily=Pretendard,Helvetica;fontColor=#374151;" vertex="1" parent="1">
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<mxCell id="leg-scale-ec2" value="P3A 는 학습/개발 한정 — 운영 SLA / SLO 미정" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=10;fontStyle=2;fontFamily=Pretendard,Helvetica;fontColor=#6B7280;" vertex="1" parent="1">
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<!-- ================= FOOTER ================= -->
<mxCell id="footer-meta" value="Version 2.0 (v1 → archived/) · 2026-05-26 · @donghyeon · Source: [[raw/branch-notes/develop-keycloak-single-ec2-no-google]] · Standard: [[templates/diagram-standards]] §A" style="text;html=1;strokeColor=none;fillColor=none;align=center;verticalAlign=middle;whiteSpace=wrap;rounded=0;fontSize=10;fontStyle=2;fontFamily=Pretendard,Helvetica;fontColor=#6B7280;" vertex="1" parent="1">
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