diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index fe2f9ca..9a4c8fe 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -118,16 +118,10 @@ maven-package:
       - ordinis-migrations/src/main/resources/db/changelog/**
     expire_in: 1 day
 
-# ─── BUILD: Integrator Guide (Diplodoc) ────────
-# Build static HTML documentation для consumers через @diplodoc/cli (yfm).
-# Source — docs/ (Markdown + toc.yaml). Output — docs/_dist/ HTML.
-#
-# Triggers:
-#   - auto при изменении docs/**
-#   - manual через web UI (для force-rebuild без code changes)
-#
-# Artifact `docs/_dist/` сохраняется неделю — pages-deploy job (TBD,
-# когда host решён — GitLab Pages либо k8s ingress) подхватит из него.
+# ─── BUILD: Integrator Guide (sanity check) ────
+# Sanity-check build для PRs и non-main branches. Полный image build
+# идёт в publish stage (docker-docs). Здесь только verify что yfm
+# не выдаёт errors на изменения docs/**.
 build-docs:
   stage: build
   image: repo.nstart.cloud/library/node:20-alpine
@@ -146,9 +140,10 @@ build-docs:
       - docs/_dist
     expire_in: 1 week
   rules:
-    - changes: *docs-changes
-    - if: '$CI_PIPELINE_SOURCE == "web"'
-      when: manual
+    - if: '$CI_COMMIT_BRANCH != "main"'
+      changes: *docs-changes
+    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
+      changes: *docs-changes
 
 # ─── PUBLISH (Docker images) ───────────────────
 .docker_base:
@@ -228,6 +223,24 @@ docker-admin-ui:
   # frontend нет — резолвили общий тег и helm пытался катить admin-ui:<commit>
   # которого не существовало. Layer-cache делает повторную сборку ~30 sec.
 
+# Integrator Guide (Diplodoc) — multi-stage Dockerfile (yfm build → nginx serving).
+# Path-filtered: rebuild только при изменении docs/. Если docs не менялся,
+# helm берёт previous tag через --reset-then-reuse-values.
+docker-docs:
+  extends: .docker_base
+  needs: []
+  variables:
+    SVC: ordinis-docs
+    DOCKERFILE: docs/Dockerfile
+    BUILD_CONTEXT: docs/
+  script:
+    - *publish_script
+  rules:
+    - if: '$CI_COMMIT_BRANCH == "main"'
+      changes: *docs-changes
+    - if: '$CI_PIPELINE_SOURCE == "web"'
+      when: manual
+
 # ─── TRIGGER DEPLOY ───────────────────────────
 # Single resolve-tag (always runs) → один UPSTREAM_IMAGE_TAG. Path-filter
 # работает на уровне docker-* jobs (backend skip если бэк не менялся,
@@ -239,6 +252,10 @@ resolve-tag:
   image: repo.nstart.cloud/library/alpine:3.20
   script:
     - echo "RESOLVED_IMAGE_TAG=$IMAGE_TAG" > resolved.env
+    # DOCS_IMAGE_TAG может быть пустым если docker-docs не пересобирался
+    # (path-filter no-match). Helm в infra оставит старый tag через
+    # --reset-then-reuse-values если переменная пустая.
+    - echo "RESOLVED_DOCS_TAG=$IMAGE_TAG" >> resolved.env
     - cat resolved.env
   artifacts:
     reports:
@@ -255,6 +272,7 @@ trigger-deploy-staging:
     strategy: depend
   variables:
     UPSTREAM_IMAGE_TAG: $RESOLVED_IMAGE_TAG
+    DOCS_IMAGE_TAG: $RESOLVED_DOCS_TAG
     DEPLOY_ENV: staging
   rules:
     - if: '$CI_COMMIT_BRANCH == "main"'
@@ -268,6 +286,7 @@ trigger-deploy-prod:
     strategy: depend
   variables:
     UPSTREAM_IMAGE_TAG: $RESOLVED_IMAGE_TAG
+    DOCS_IMAGE_TAG: $RESOLVED_DOCS_TAG
     DEPLOY_ENV: prod
   rules:
     - if: '$CI_COMMIT_TAG =~ /^v[0-9]+\.[0-9]+\.[0-9]+$/'
diff --git a/docs/Dockerfile b/docs/Dockerfile
new file mode 100644
index 0000000..08214dd
--- /dev/null
+++ b/docs/Dockerfile
@@ -0,0 +1,33 @@
+# Multi-stage build для Ordinis Integrator Guide.
+# Stage 1: build HTML через @diplodoc/cli (yfm).
+# Stage 2: nginx serving static files на /docs/ path.
+
+ARG NODE_IMAGE=repo.nstart.cloud/library/node:20-alpine
+ARG NGINX_IMAGE=repo.nstart.cloud/library/nginx:1.27-alpine
+
+# ─── Stage 1: Build HTML ─────────────────────
+FROM ${NODE_IMAGE} AS builder
+WORKDIR /docs
+
+# Layered cache: package.json + lockfile меняются реже чем content.
+COPY package.json pnpm-lock.yaml ./
+RUN corepack enable \
+    && corepack prepare pnpm@9.0.0 --activate \
+    && pnpm install --frozen-lockfile
+
+# Copy остальное (toc, .yfm, markdown).
+COPY .yfm toc.yaml index.md ./
+COPY integration ./integration
+
+RUN pnpm build
+
+# ─── Stage 2: nginx ──────────────────────────
+FROM ${NGINX_IMAGE}
+COPY --from=builder /docs/_dist /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+# Healthcheck для k8s readiness/liveness.
+HEALTHCHECK --interval=10s --timeout=3s --start-period=5s --retries=3 \
+  CMD wget -q -O - http://localhost:8080/healthz || exit 1
+
+EXPOSE 8080
diff --git a/docs/nginx.conf b/docs/nginx.conf
new file mode 100644
index 0000000..284f537
--- /dev/null
+++ b/docs/nginx.conf
@@ -0,0 +1,46 @@
+# Ordinis Integrator Guide — nginx serving static HTML на /docs/.
+# Diplodoc генерирует relative links — alias корректно работает без rewrite.
+
+server {
+  listen 8080 default_server;
+  listen [::]:8080 default_server;
+  server_name _;
+
+  access_log /dev/stdout;
+  error_log /dev/stderr;
+
+  # K8s probe.
+  location = /healthz {
+    access_log off;
+    return 200 "ok\n";
+    add_header Content-Type text/plain;
+  }
+
+  # Documentation root.
+  location /docs/ {
+    alias /usr/share/nginx/html/;
+    index index.html;
+    try_files $uri $uri/ $uri.html =404;
+
+    # HTML — short cache (5 min). Новые deploy'ы быстро видны.
+    expires 5m;
+    add_header Cache-Control "public, must-revalidate";
+
+    # Hash-named assets — long cache. Diplodoc делает content-hashing
+    # в _bundle/ что safe для immutable cache.
+    location ~* /_bundle/.*\.(css|js|woff2?|ttf|eot|svg|png|jpg|ico)$ {
+      expires 1y;
+      add_header Cache-Control "public, immutable";
+    }
+  }
+
+  # Redirect /docs (без trailing slash) → /docs/.
+  location = /docs {
+    return 301 /docs/;
+  }
+
+  # Security headers.
+  add_header X-Content-Type-Options "nosniff" always;
+  add_header X-Frame-Options "SAMEORIGIN" always;
+  add_header Referrer-Policy "strict-origin-when-cross-origin" always;
+}