fix: auditoria de coerência entre aulas

Bugs corrigidos:
- aula-15: tracing.js fallback OTel endpoint usava service name errado
  (otel-collector vs otel-collector-opentelemetry-collector)
- aula-11/13: manifests k8s com gitea.kube.quest hardcoded → placeholder

Arquivos legado removidos (9):
- aula-10: gitlab-values.yaml, gitlab-registry-storage-secret.yaml,
  object-storage-secret.yaml, registry-storage-secret.yaml
- aula-11: gitlab-runner-values.yaml, node-bugado/.gitlab-ci.yml
- aula-13: 3x .gitlab-ci.yml (substituídos por .gitea/workflows/ci.yml)

CLAUDE.md: comandos rápidos agora incluem aula-14 e aula-15

aula-13/images/devops-toolbox/.gitlab-ci.yml

@@ -1,77 +0,0 @@
-# =============================================================================
-# Pipeline CI: DevOps Toolbox (eStargz + GZIP)
-# =============================================================================
-# Constrói imagem em ambos os formatos para benchmark
-# =============================================================================
-
-stages:
-  - build
-  - push
-
-variables:
-  REGISTRY: gitea.kube.quest
-  IMAGE_NAME: factory/devops-toolbox
-  DOCKER_HOST: tcp://docker:2376
-  DOCKER_TLS_CERTDIR: "/certs"
-  DOCKER_TLS_VERIFY: 1
-  DOCKER_CERT_PATH: "$DOCKER_TLS_CERTDIR/client"
-
-# -----------------------------------------------------------------------------
-# Build eStargz (lazy pulling)
-# -----------------------------------------------------------------------------
-build-estargz:
-  stage: build
-  image: docker:27-dind
-  services:
-    - docker:27-dind
-  before_script:
-    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $REGISTRY
-    - docker buildx create --use --name multiarch --driver docker-container
-  script:
-    - |
-      docker buildx build \
-        --platform linux/arm64,linux/amd64 \
-        --output type=image,name=${REGISTRY}/${IMAGE_NAME}:latest,push=true,compression=estargz,force-compression=true,oci-mediatypes=true \
-        --cache-from type=registry,ref=${REGISTRY}/${IMAGE_NAME}:cache \
-        --cache-to type=registry,ref=${REGISTRY}/${IMAGE_NAME}:cache,mode=max \
-        .
-  rules:
-    - if: $CI_COMMIT_BRANCH == "main"
-
-# -----------------------------------------------------------------------------
-# Build GZIP (tradicional, para benchmark)
-# -----------------------------------------------------------------------------
-build-gzip:
-  stage: build
-  image: docker:27-dind
-  services:
-    - docker:27-dind
-  before_script:
-    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $REGISTRY
-    - docker buildx create --use --name multiarch --driver docker-container
-  script:
-    - |
-      docker buildx build \
-        --platform linux/arm64,linux/amd64 \
-        --output type=image,name=${REGISTRY}/${IMAGE_NAME}:gzip,push=true,compression=gzip,oci-mediatypes=true \
-        --cache-from type=registry,ref=${REGISTRY}/${IMAGE_NAME}:cache \
-        .
-  rules:
-    - if: $CI_COMMIT_BRANCH == "main"
-
-# -----------------------------------------------------------------------------
-# Tag como versão
-# -----------------------------------------------------------------------------
-push-tags:
-  stage: push
-  image: docker:27-cli
-  services:
-    - docker:27-dind
-  before_script:
-    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $REGISTRY
-  script:
-    - docker buildx imagetools create -t ${REGISTRY}/${IMAGE_NAME}:v1 ${REGISTRY}/${IMAGE_NAME}:latest
-  rules:
-    - if: $CI_COMMIT_BRANCH == "main"
-  needs:
-    - build-estargz

aula-13/images/large-test/.gitlab-ci.yml

@@ -1,38 +0,0 @@
-stages:
-  - build
-
-variables:
-  REGISTRY: gitea.kube.quest
-  IMAGE_NAME: factory/large-test
-
-build:
-  stage: build
-  image: docker:27-dind
-  services:
-    - docker:27-dind
-  variables:
-    DOCKER_TLS_CERTDIR: ""
-    DOCKER_HOST: tcp://docker:2375
-  before_script:
-    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
-    - docker buildx create --use --name builder --driver docker-container
-  script:
-    # Build eStargz (lazy pulling)
-    - echo "Building eStargz version..."
-    - |
-      docker buildx build \
-        --output type=image,name=${REGISTRY}/${IMAGE_NAME}:latest,push=true,compression=estargz,force-compression=true,oci-mediatypes=true \
-        .
-
-    # Build GZIP tradicional
-    - echo "Building GZIP version..."
-    - |
-      docker buildx build \
-        --output type=image,name=${REGISTRY}/${IMAGE_NAME}:gzip,push=true,compression=gzip,oci-mediatypes=true \
-        .
-
-    - echo "Images pushed:"
-    - echo "  - ${REGISTRY}/${IMAGE_NAME}:latest (eStargz ~1.5GB)"
-    - echo "  - ${REGISTRY}/${IMAGE_NAME}:gzip (GZIP ~1.5GB)"
-  tags:
-    - kubernetes

aula-13/k8s/postgresql/deployment.yaml

@@ -35,7 +35,8 @@ spec:
       containers:
         - name: postgresql
           # Imagem da Container Factory (eStargz)
-          image: gitea.kube.quest/factory/postgresql:17
+          # Substitua GITEA_HOST pelo hostname do seu Gitea (ex: gitea.kube.quest)
+          image: GITEA_HOST_PLACEHOLDER/factory/postgresql:17
           imagePullPolicy: IfNotPresent
 
           ports:

aula-13/pipelines/postgresql/.gitlab-ci.yml

@@ -1,183 +0,0 @@
-# =============================================================================
-# GitLab CI/CD Pipeline - PostgreSQL Container Factory
-# =============================================================================
-#
-# Build de imagem PostgreSQL customizada em formato eStargz.
-# Push para registry.kube.quest com lazy pulling habilitado.
-#
-# Requisitos:
-#   - GitLab Runner com Docker-in-Docker (aula-11)
-#   - BuildKit habilitado
-#
-# Uso:
-#   1. Criar grupo 'factory' no GitLab
-#   2. Criar projeto 'postgresql' dentro do grupo
-#   3. Copiar Dockerfile, postgresql.conf e este .gitlab-ci.yml
-#   4. Push para main - pipeline roda automaticamente
-#
-# =============================================================================
-
-stages:
-  - build
-  - test
-  - push
-
-variables:
-  # Registry do GitLab (aula-10)
-  REGISTRY: ${CI_REGISTRY}
-  IMAGE_NAME: ${CI_PROJECT_PATH}
-  POSTGRES_VERSION: "17"
-
-  # BuildKit para suporte a eStargz
-  DOCKER_BUILDKIT: "1"
-  BUILDKIT_PROGRESS: plain
-
-  # Docker-in-Docker TLS connection
-  DOCKER_HOST: tcp://docker:2376
-  DOCKER_TLS_CERTDIR: "/certs"
-  DOCKER_CERT_PATH: "/certs/client"
-  DOCKER_TLS_VERIFY: "1"
-
-# =============================================================================
-# BUILD - Construir imagem em formato eStargz
-# =============================================================================
-build:
-  stage: build
-  image: docker:24
-  services:
-    - docker:24-dind
-  before_script:
-    # Aguardar Docker daemon estar pronto
-    - until docker info; do sleep 1; done
-    # Login no registry
-    - docker login -u ${CI_REGISTRY_USER} -p ${CI_REGISTRY_PASSWORD} ${CI_REGISTRY}
-    # Configurar buildx com driver docker (usa daemon existente)
-    - docker buildx create --name estargz-builder --driver docker --use || true
-    - docker buildx inspect --bootstrap
-  script:
-    - echo "Building ${IMAGE_NAME}:${POSTGRES_VERSION}-${CI_COMMIT_SHA:0:8} with eStargz compression"
-    # Build com formato eStargz
-    - |
-      docker buildx build \
-        --output type=image,name=${REGISTRY}/${IMAGE_NAME}:${POSTGRES_VERSION}-${CI_COMMIT_SHA:0:8},push=true,compression=estargz,force-compression=true,oci-mediatypes=true \
-        --label "org.opencontainers.image.revision=${CI_COMMIT_SHA}" \
-        --label "org.opencontainers.image.created=$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
-        --label "org.opencontainers.image.source=${CI_PROJECT_URL}" \
-        --build-arg POSTGRES_VERSION=${POSTGRES_VERSION} \
-        .
-  rules:
-    - if: $CI_COMMIT_BRANCH == "main"
-    - if: $CI_COMMIT_TAG
-  tags:
-    - kubernetes
-    - docker
-
-# =============================================================================
-# TEST - Testar imagem construída
-# =============================================================================
-test:
-  stage: test
-  image: docker:24
-  services:
-    - docker:24-dind
-  before_script:
-    - until docker info; do sleep 1; done
-    - docker login -u ${CI_REGISTRY_USER} -p ${CI_REGISTRY_PASSWORD} ${CI_REGISTRY}
-  script:
-    - echo "Testing PostgreSQL image..."
-
-    # Iniciar container de teste
-    - |
-      docker run -d --name pg-test \
-        -e POSTGRES_PASSWORD=testpassword \
-        -e POSTGRES_DB=testdb \
-        ${REGISTRY}/${IMAGE_NAME}:${POSTGRES_VERSION}-${CI_COMMIT_SHA:0:8}
-
-    # Aguardar inicialização (30s max)
-    - |
-      for i in $(seq 1 30); do
-        if docker exec pg-test pg_isready -U postgres -d testdb 2>/dev/null; then
-          echo "PostgreSQL ready!"
-          break
-        fi
-        echo "Waiting for PostgreSQL... ($i/30)"
-        sleep 1
-      done
-
-    # Verificar healthcheck
-    - docker exec pg-test pg_isready -U postgres -d testdb
-
-    # Testar conexão e queries básicas
-    - docker exec pg-test psql -U postgres -d testdb -c "SELECT version();"
-    - docker exec pg-test psql -U postgres -d testdb -c "SHOW shared_buffers;"
-    - docker exec pg-test psql -U postgres -d testdb -c "SHOW max_connections;"
-
-    # Testar criação de tabela
-    - docker exec pg-test psql -U postgres -d testdb -c "CREATE TABLE test (id serial PRIMARY KEY, name text);"
-    - docker exec pg-test psql -U postgres -d testdb -c "INSERT INTO test (name) VALUES ('test');"
-    - docker exec pg-test psql -U postgres -d testdb -c "SELECT * FROM test;"
-    - docker exec pg-test psql -U postgres -d testdb -c "DROP TABLE test;"
-
-    # Cleanup
-    - docker stop pg-test && docker rm pg-test
-    - echo "All tests passed!"
-  needs:
-    - build
-  rules:
-    - if: $CI_COMMIT_BRANCH == "main"
-    - if: $CI_COMMIT_TAG
-  tags:
-    - kubernetes
-    - docker
-
-# =============================================================================
-# PUSH - Tag como versão e latest
-# =============================================================================
-push:
-  stage: push
-  image: docker:24
-  services:
-    - docker:24-dind
-  before_script:
-    - until docker info; do sleep 1; done
-    - docker login -u ${CI_REGISTRY_USER} -p ${CI_REGISTRY_PASSWORD} ${CI_REGISTRY}
-    - docker buildx create --name estargz-builder --driver docker --use || true
-    - docker buildx inspect --bootstrap
-  script:
-    - echo "Tagging and pushing final images..."
-
-    # Re-tag como versão (17)
-    - |
-      docker buildx build \
-        --output type=image,name=${REGISTRY}/${IMAGE_NAME}:${POSTGRES_VERSION},push=true,compression=estargz,force-compression=true,oci-mediatypes=true \
-        --label "org.opencontainers.image.revision=${CI_COMMIT_SHA}" \
-        --label "org.opencontainers.image.created=$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
-        .
-
-    # Re-tag como latest
-    - |
-      docker buildx build \
-        --output type=image,name=${REGISTRY}/${IMAGE_NAME}:latest,push=true,compression=estargz,force-compression=true,oci-mediatypes=true \
-        --label "org.opencontainers.image.revision=${CI_COMMIT_SHA}" \
-        --label "org.opencontainers.image.created=$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
-        .
-
-    # Build versão GZIP (para benchmark)
-    - |
-      docker buildx build \
-        --output type=image,name=${REGISTRY}/${IMAGE_NAME}:${POSTGRES_VERSION}-gzip,push=true,compression=gzip,oci-mediatypes=true \
-        --label "org.opencontainers.image.revision=${CI_COMMIT_SHA}" \
-        --label "org.opencontainers.image.created=$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
-        .
-
-    - echo "Images pushed:"
-    - echo "  - ${REGISTRY}/${IMAGE_NAME}:${POSTGRES_VERSION} (eStargz)"
-    - echo "  - ${REGISTRY}/${IMAGE_NAME}:${POSTGRES_VERSION}-gzip (tradicional)"
-    - echo "  - ${REGISTRY}/${IMAGE_NAME}:latest (eStargz)"
-  needs:
-    - test
-  rules:
-    - if: $CI_COMMIT_BRANCH == "main"
-  tags:
-    - kubernetes
-    - docker