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8 archivos name aspnet-core-devops version 2.0.0 description Master ASP.NET Core deployment, Docker, Azure cloud, CI/CD pipelines, and production infrastructure for enterprise applications. sasmp_version 1.3.0 bonded_agent aspnet-core-devops bond_type PRIMARY_BOND skill_type atomic responsibility single parameters {"cloud_provider":{"type":"string","required":false,"default":"azure","validation":{"allowed_values":["azure","aws","gcp","on-premise"]}},"container_runtime":{"type":"string","required":false,"default":"docker","validation":{"allowed_values":["docker","containerd","podman"]}},"orchestrator":{"type":"string","required":false,"default":"kubernetes","validation":{"allowed_values":["kubernetes","docker-swarm","ecs","none"]}},"ci_platform":{"type":"string","required":false,"default":"github-actions","validation":{"allowed_values":["github-actions","azure-pipelines","gitlab-ci","jenkins"]}}} retry_config {"enabled":true,"max_attempts":5,"backoff_type":"exponential","initial_delay_ms":2000,"max_delay_ms":60000,"jitter":true,"retryable_errors":["NETWORK_ERROR","DEPLOYMENT_TIMEOUT","CONTAINER_PULL_ERROR"]} observability {"logging":{"enabled":true,"level":"Information","include_deployment_details":true,"sensitive_fields":["password","secret","key","token","connectionString"]},"metrics":{"enabled":true,"namespace":"skill.aspnetcore.devops","dimensions":["deployment_stage","environment","status"]},"tracing":{"enabled":true,"span_name":"aspnetcore-devops","include_infrastructure_spans":true}} test_templates {"framework":"infrastructure_tests","tools":["terratest","pester"],"coverage_target":70}
ASP.NET Core DevOps & Production
Skill Overview
Production-grade DevOps skill for ASP.NET Core applications. Covers containerization, cloud deployment, CI/CD pipelines, and infrastructure as code with comprehensive observability.
DevOps Skills
Docker & Containerization
dockerfile_best_practices:
multi_stage_builds:
- Separate build and runtime stages
- Minimize final image size
- Use specific base image tags
security:
- Run as non-root user
- Use distroless/alpine images
- Scan for vulnerabilities
- Read-only filesystem
optimization:
- Order layers by change frequency
- Use .dockerignore
- Leverage build cache
- Multi-platform
builds
docker_compose:
use_cases:
-
Local
development
-
Integration
testing
-
Multi-container
apps
features:
-
Service
dependencies
-
Volume
mounts
-
Network
isolation
-
Environment
variables
container_security:
practices:
-
Non-root
user
-
Drop
capabilities
-
Read-only
rootfs
-
Security
scanning
tools:
-
Trivy
-
Snyk
-
Docker
Scout
Azure Cloud Services compute:
app_service:
tiers: [Basic , Standard , Premium , Isolated ]
features:
- Auto-scaling
- Deployment slots
- Custom domains
- SSL certificates
best_for: Web apps, APIs
container_apps:
features:
- Serverless containers
- Auto-scaling
- Dapr integration
- Revision management
best_for: Microservices
aks:
features:
- Managed Kubernetes
- Node pools
- Azure CNI
- AAD integration
best_for: Complex workloads
data:
sql_database:
tiers: [Basic , Standard , Premium ]
features:
- Geo-replication
- Automatic backups
- Elastic pools
cosmos_db:
apis: [SQL , MongoDB , Cassandra , Gremlin ]
features:
- Global distribution
- Multi-model
- Automatic scaling
redis_cache:
tiers: [Basic , Standard , Premium ]
features:
- Clustering
- Geo-replication
- Data persistence
security:
key_vault:
purpose: Secrets management
features:
- Access policies
- Managed identity
- Key rotation
- Audit logging
managed_identity:
types: [System-assigned , User-assigned ]
benefits:
- No credential management
- Automatic rotation
- Azure AD integration
CI/CD Pipelines github_actions:
workflow_structure:
- Triggers (push, PR, schedule)
- Jobs (build, test, deploy)
- Steps (actions, scripts)
features:
- Matrix builds
- Reusable workflows
- Environment protection
- OIDC authentication
- Artifact management
azure_pipelines:
structure:
- Stages
- Jobs
- Steps
features:
- Multi-stage pipelines
- Deployment groups
- Variable groups
- Service connections
deployment_strategies:
blue_green:
description: Deploy to inactive slot, swap
benefits:
- Zero downtime
- Instant rollback
azure: Deployment slots
canary:
description: Gradual traffic shift
benefits:
- Risk mitigation
- Real user testing
implementation: Traffic manager, Azure Front Door
rolling:
description: Update instances incrementally
benefits:
- No additional resources
- Gradual rollout
kubernetes: Rolling update strategy
quality_gates:
- Unit tests pass
- Code coverage threshold
- Static analysis clean
- Security scan pass
- Performance benchmarks
Kubernetes Orchestration core_concepts:
pods:
- Smallest deployable unit
- Container grouping
- Shared network/storage
deployments:
- Desired state management
- Rolling updates
- Rollback capability
services:
types:
- ClusterIP (internal)
- NodePort (node access)
- LoadBalancer (external)
ingress:
controllers:
- NGINX
- Traefik
- Azure Application Gateway
features:
- Path-based routing
- TLS termination
- Host-based routing
advanced_features:
hpa:
metrics:
- CPU utilization
- Memory utilization
- Custom metrics
behavior:
- Scale up policies
- Scale down policies
- Stabilization windows
pdb:
purpose: Availability during updates
settings:
- minAvailable
- maxUnavailable
network_policies:
purpose: Pod-to-pod traffic control
types:
- Ingress rules
- Egress rules
helm:
concepts:
- Charts
- Values
- Templates
- Releases
best_practices:
- Parameterize values
- Use dependencies
- Version charts
Infrastructure as Code terraform:
structure:
- Providers
- Resources
- Variables
- Outputs
- Modules
state_management:
- Remote backend
- State locking
- Workspaces
best_practices:
- Modular design
- Version pinning
- Plan before apply
bicep:
benefits:
- Native Azure support
- Type safety
- Simpler syntax
structure:
- Parameters
- Variables
- Resources
- Outputs
- Modules
pulumi:
benefits:
- Use familiar languages (C#)
- Type checking
- IDE support
structure:
- Stacks
- Resources
- Outputs
Monitoring & Logging observability_pillars:
metrics:
tools:
- Application Insights
- Prometheus
- Azure Monitor
types:
- Request rate
- Error rate
- Latency (p50, p95, p99)
- Resource utilization
logs:
structured_logging:
- Serilog
- NLog
aggregation:
- Azure Log Analytics
- ELK Stack
- Loki
best_practices:
- Correlation IDs
- Log levels
- Sensitive data masking
traces:
distributed_tracing:
- OpenTelemetry
- Application Insights
features:
- Request correlation
- Dependency tracking
- Performance profiling
health_checks:
types:
- Liveness (is alive?)
- Readiness (can serve?)
- Startup (initialized?)
implementation:
- /health/live
- /health/ready
- Custom health checks
alerting:
strategies:
- Error rate spikes
- Latency thresholds
- Resource exhaustion
- SLO violations
channels:
- Email
- Slack
- PagerDuty
- Azure Monitor
Code Examples
Production-Ready Dockerfile # Build stage
FROM mcr.microsoft.com/dotnet/sdk:9.0-alpine AS build
WORKDIR /src
# Copy csproj and restore (cached layer)
COPY ["*.csproj", "./"]
RUN dotnet restore --runtime linux-musl-x64
# Copy source and build
COPY . .
RUN dotnet build -c Release --no-restore -o /app/build
# Test stage
FROM build AS test
RUN dotnet test --no-build -c Release \
--logger "trx" \
--results-directory /testresults
# Publish stage
FROM build AS publish
RUN dotnet publish -c Release -o /app/publish \
--runtime linux-musl-x64 \
--self-contained true \
-p:PublishTrimmed=true \
-p:PublishSingleFile=true
# Runtime stage - distroless equivalent
FROM mcr.microsoft.com/dotnet/runtime-deps:9.0-alpine AS final
# Security: Non-root user
RUN addgroup -g 1000 appgroup && \
adduser -u 1000 -G appgroup -D appuser
WORKDIR /app
# Copy published app with correct ownership
COPY --from=publish --chown=appuser:appgroup /app/publish .
# Switch to non-root user
USER appuser
# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
CMD wget --quiet --tries=1 --spider http://localhost:8080/health || exit 1
# Expose port (non-privileged)
EXPOSE 8080
ENV ASPNETCORE_URLS=http://+:8080
ENV ASPNETCORE_ENVIRONMENT=Production
# Entry point
ENTRYPOINT ["./MyApp"]
GitHub Actions Complete Workflow name: Build, Test, and Deploy
on:
push:
branches: [main , develop ]
pull_request:
branches: [main ]
workflow_dispatch:
permissions:
id-token: write
contents: read
packages: write
security-events: write
env:
REGISTRY: ghcr.io
IMAGE_NAME: ${{ github.repository }}
AZURE_WEBAPP_NAME: myapp
jobs:
build-and-test:
runs-on: ubuntu-latest
outputs:
version: ${{ steps.version.outputs.version }}
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
- name: Setup .NET
uses: actions/setup-dotnet@v4
with:
dotnet-version: '9.0.x'
- name: Restore dependencies
run: dotnet restore
- name: Build
run: dotnet build --no-restore -c Release
- name: Test with coverage
run: |
dotnet test --no-build -c Release \
--logger trx \
--collect:"XPlat Code Coverage" \
--results-directory ./TestResults
- name: Upload coverage
uses: codecov/codecov-action@v4
with:
files: ./TestResults/**/coverage.cobertura.xml
fail_ci_if_error: true
- name: Upload test results
uses: actions/upload-artifact@v4
if: always()
with:
name: test-results
path: ./TestResults
- name: Generate version
id: version
run: |
VERSION=$(date +'%Y%m%d').${{ github.run_number }}
echo "version=$VERSION" >> $GITHUB_OUTPUT
security-scan:
runs-on: ubuntu-latest
needs: build-and-test
steps:
- uses: actions/checkout@v4
- name: Run Trivy vulnerability scanner
uses: aquasecurity/trivy-action@master
with:
scan-type: 'fs'
scan-ref: '.'
format: 'sarif'
output: 'trivy-results.sarif'
severity: 'CRITICAL,HIGH'
- name: Upload Trivy scan results
uses: github/codeql-action/upload-sarif@v3
with:
sarif_file: 'trivy-results.sarif'
build-container:
runs-on: ubuntu-latest
needs: [build-and-test , security-scan ]
if: github.event_name != 'pull_request'
steps:
- uses: actions/checkout@v4
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
- name: Login to Container Registry
uses: docker/login-action@v3
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Extract metadata
id: meta
uses: docker/metadata-action@v5
with:
images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
tags: |
type=raw,value=${{ needs.build-and-test.outputs.version }}
type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
- name: Build and push
uses: docker/build-push-action@v5
with:
context: .
push: true
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}
cache-from: type=gha
cache-to: type=gha,mode=max
- name: Scan container image
uses: aquasecurity/trivy-action@master
with:
image-ref: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ needs.build-and-test.outputs.version }}
exit-code: '1'
severity: 'CRITICAL,HIGH'
deploy-staging:
runs-on: ubuntu-latest
needs: [build-and-test , build-container ]
if: github.ref == 'refs/heads/main'
environment: staging
steps:
- name: Azure Login (OIDC)
uses: azure/login@v2
with:
client-id: ${{ secrets.AZURE_CLIENT_ID }}
tenant-id: ${{ secrets.AZURE_TENANT_ID }}
subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
- name: Deploy to Staging
uses: azure/webapps-deploy@v3
with:
app-name: ${{ env.AZURE_WEBAPP_NAME }}-staging
images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ needs.build-and-test.outputs.version }}
- name: Smoke test
run: |
sleep 60
curl --fail --retry 3 --retry-delay 10 \
https://${{ env.AZURE_WEBAPP_NAME }}-staging.azurewebsites.net/health
deploy-production:
runs-on: ubuntu-latest
needs: [build-and-test , deploy-staging ]
if: github.ref == 'refs/heads/main'
environment: production
steps:
- name: Azure Login (OIDC)
uses: azure/login@v2
with:
client-id: ${{ secrets.AZURE_CLIENT_ID }}
tenant-id: ${{ secrets.AZURE_TENANT_ID }}
subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
- name: Deploy to Production Slot
uses: azure/webapps-deploy@v3
with:
app-name: ${{ env.AZURE_WEBAPP_NAME }}
slot-name: staging
images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ needs.build-and-test.outputs.version }}
- name: Swap slots
run: |
az webapp deployment slot swap \
--name ${{ env.AZURE_WEBAPP_NAME }} \
--resource-group myResourceGroup \
--slot staging \
--target-slot production
- name: Verify deployment
run: |
sleep 30
curl --fail --retry 5 --retry-delay 10 \
https://${{ env.AZURE_WEBAPP_NAME }}.azurewebsites.net/health
Kubernetes Production Manifests ---
apiVersion: v1
kind: Namespace
metadata:
name: myapp
labels:
name: myapp
---
apiVersion: v1
kind: ConfigMap
metadata:
name: myapp-config
namespace: myapp
data:
ASPNETCORE_ENVIRONMENT: "Production"
LOGGING__LOGLEVEL__DEFAULT: "Information"
---
apiVersion: v1
kind: Secret
metadata:
name: myapp-secrets
namespace: myapp
type: Opaque
stringData:
ConnectionStrings__Default: "Server=xxx;Database=xxx;..."
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: myapp
namespace: myapp
spec:
replicas: 3
strategy:
type: RollingUpdate
rollingUpdate:
maxSurge: 1
maxUnavailable: 0
selector:
matchLabels:
app: myapp
template:
metadata:
labels:
app: myapp
annotations:
prometheus.io/scrape: "true"
prometheus.io/port: "8080"
spec:
serviceAccountName: myapp
securityContext:
runAsNonRoot: true
runAsUser: 1000
fsGroup: 1000
containers:
- name: myapp
image: ghcr.io/myorg/myapp:latest
imagePullPolicy: Always
ports:
- containerPort: 8080
envFrom:
- configMapRef:
name: myapp-config
- secretRef:
name: myapp-secrets
resources:
requests:
cpu: 100m
memory: 128Mi
limits:
cpu: 500m
memory: 512Mi
livenessProbe:
httpGet:
path: /health/live
port: 8080
initialDelaySeconds: 10
periodSeconds: 10
readinessProbe:
httpGet:
path: /health/ready
port: 8080
initialDelaySeconds: 5
periodSeconds: 5
securityContext:
allowPrivilegeEscalation: false
readOnlyRootFilesystem: true
volumeMounts:
- name: tmp
mountPath: /tmp
volumes:
- name: tmp
emptyDir: {}
---
apiVersion: v1
kind: Service
metadata:
name: myapp
namespace: myapp
spec:
selector:
app: myapp
ports:
- port: 80
targetPort: 8080
---
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
name: myapp
namespace: myapp
spec:
scaleTargetRef:
apiVersion: apps/v1
kind: Deployment
name: myapp
minReplicas: 3
maxReplicas: 10
metrics:
- type: Resource
resource:
name: cpu
target:
type: Utilization
averageUtilization: 70
---
apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
name: myapp
namespace: myapp
spec:
minAvailable: 2
selector:
matchLabels:
app: myapp
Troubleshooting Guide
Common Issues Issue Symptoms Resolution Image Pull Error ImagePullBackOff Check registry auth, image tag Pod CrashLoop Continuous restarts Check logs, liveness probe OOMKilled Pod terminated Increase memory limits Deployment Timeout Stuck rollout Check readiness probe SSL/TLS Errors Certificate issues Verify cert-manager, secrets
Debug Checklist step_1_container:
- docker build locally
- docker run and test
- Check Dockerfile syntax
- Verify base image
step_2_kubernetes:
- kubectl describe pod
- kubectl logs pod
- kubectl get events
- Check resource limits
step_3_networking:
- kubectl get svc
- kubectl get endpoints
- Test service connectivity
- Check ingress config
step_4_deployment:
- Check CI/CD logs
- Verify secrets/configs
- Test health endpoints
- Monitor rollout status
Assessment Criteria
References 