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- sickn33/agentic-awesome-skills
- ソースの最終更新活動
- 2026年9月21日 13:45
- 検出された SKILL.md の言語
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SKILL.md
ソースの指示 · 読み取り専用プレビュー- name
- container-hardening
- description
- Secure Docker images and container runtime configurations.
- category
- security
- risk
- critical
- source
- https://github.com/BagelHole/DevOps-Security-Agent-Skills
- source_repo
- BagelHole/DevOps-Security-Agent-Skills
- source_type
- community
- date_added
- 2026-09-20
- license
- MIT
- license_source
- https://github.com/BagelHole/DevOps-Security-Agent-Skills/blob/main/LICENSE
- compatibility
- Requires the relevant security tooling (scanners, vault CLIs) and an authorized scope for any active assessment. Docs-only; helper scripts and templates not bundled.
- metadata
- {"author":"devops-skills","version":"1.0"}
# Container Hardening
Secure container images and runtime configurations.
## When to Use This Skill
Use this skill when:
- Building secure container images
- Hardening container deployments
- Meeting container security requirements
- Implementing defense in depth
## Dockerfile Security
```dockerfile
# Use minimal base image
FROM alpine:3.18
# Don't run as root
RUN addgroup -g 1001 -S appgroup && \
adduser -u 1001 -S appuser -G appgroup
# Copy with specific ownership
COPY --chown=appuser:appgroup . /app
# Remove unnecessary packages
RUN apk del --purge build-dependencies && \
rm -rf /var/cache/apk/*
# Use non-root user
USER appuser
# Read-only filesystem support
WORKDIR /app
```
## Runtime Security
```bash
# Run with security options
docker run -d \
--read-only \
--tmpfs /tmp \
--security-opt=no-new-privileges:true \
--cap-drop=ALL \
--cap-add=NET_BIND_SERVICE \
--user 1001:1001 \
myapp:latest
```
## Kubernetes Security Context
```yaml
apiVersion: v1
kind: Pod
spec:
securityContext:
runAsNonRoot: true
runAsUser: 1001
fsGroup: 1001
containers:
- name: app
securityContext:
allowPrivilegeEscalation: false
readOnlyRootFilesystem: true
capabilities:
drop: ["ALL"]
```
## Image Scanning
```bash
# Scan with Trivy
trivy image --severity HIGH,CRITICAL myapp:latest
# Use distroless images
FROM gcr.io/distroless/static-debian11
```
## Best Practices
- Use minimal base images
- Run as non-root user
- Enable read-only filesystem
- Drop all capabilities
- Scan images regularly
- Sign and verify images
- Use secrets management
## Related Skills
- container-scanning (`container-scanning`) - Vulnerability scanning
- kubernetes-hardening (`kubernetes-hardening`) - K8s security
## Limitations
- Apply guidance only within authorized scope; test destructive steps in non-production first.
- Docs-only import: upstream scripts and templates not bundled.
### Example
```bash
# Read-only first: inventory before any active step.
which <tool> && <tool> --help | head -n 20
```
> Adapted from [BagelHole/DevOps-Security-Agent-Skills](https://github.com/BagelHole/DevOps-Security-Agent-Skills) (MIT); frontmatter, When to Use/Limitations, and safety boundaries added for upstream compliance. Docs-only import: helper scripts and templates not bundled.
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