A DevOps State of Mind: Continuous Security with Kubernetes

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A DEVOPS STATE OF MIND: Continuous Security with Kubernetes Chris Van Tuin Chief Technologist, NA West / Silicon Valley [email protected]

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THE DISRUPTORS

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“Only the Paranoid Survive” - Andy Grove, 1998

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Retail Finance Media Transportation ? ? SOFTWARE DISRUPTS BUSINESS

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+ ≠ TAXI TRANSPORTATION DISRUPTER https://goo.gl/MP7QQH Ack: Andrew Ng APP IT’S NOT JUST A… +

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Culture of experimentation A B 20% vs. 25% Empowered organization Time Change Rapid Innovation THE DISRUPTORS = AI /  ML Data-driven intelligence Data, Data, Data

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WHAT CAN I.T. DO?

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DEV QA OPS Walled off people, walled off processes, walled off technologies “THROW IT OVER THE WALL”

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I.T. MUST EVOLVE TO ENABLE THE BUSINESS Development Model Application Architecture Deployment & Packaging Application Infrastructure Storage Waterfall Agile Monolithic N-tier Bare Metal Virtual Servers Data Center Hosted Scale Up Scale Out DevOps MicroServices Containers Hybrid Cloud Storage as a Service

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DEV QA OPS Open organization +   cross-functional teams Software factory automation Linux + Containers IaaS Orchestration CI/CD Source Control Management Collaboration Build and Artifact Management Testing Frameworks Open Source CI/CD pipelines with feedback Culture Process Technology + + BREAKING DOWN THE WALLS WITH DEVOPS

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WHAT ABOUT SECURITY?

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DEV QA OPS SECURITY IS AN AFTERTHOUGHT | SECURITY | “Patch? The servers are behind the firewall.” - Anonymous (far too many to name), 2005 - …

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http://www.informationisbeautiful.net/visualizations/worlds-biggest-data-breaches-hacks/

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DEVSECOPS End to End Security + + SECURITY DEV QA OPS Linux + Containers IaaS Orchestration CI/CD Source Control Management Collaboration Build and Artifact Management Testing Frameworks Open Source Culture Process Technology

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CONTAINERS

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APPLICATION DELIVERY VIA CONTAINERS

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docker.io Registry Private Registry FROM fedora:latest CMD echo “Hello” Build file Physical, Virtual, Cloud Image Container Build Run Ship CONTAINERS: BUILD, SHIP, RUN

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CONTAINER SECURITY AT SCALE

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Scheduling Monitoring Persistence Discovery Lifecycle & health Scaling Aggregation Security MORE THAN CONTAINERS…

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DEVSECOPS End to End Security + + DEV QA OPS SECURITY

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4 ● Are there known vulnerabilities in the application layer? ● Are the runtime and OS layers up to date? ● How frequently will the container be updated and how will I know when it’s updated? CONTENT: EACH LAYER MATTERS CONTAINER OS RUNTIME APPLICATION Are there known vulnerabilities   in each application layer? Are the runtime and OS layers   up to date? How frequently will the container be updated and how will I know when its updated? IS THE CONTAINER ENVIRONMENT SECURE? Is the image from a trusted source? Can I quickly deploy a security update at scale? Is my multi-tenant host secure?

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Network isolation Storage API & Platform access Monitoring & Logging Federated clusters Registry Container host {} Builds CI/CD Images SECURING CONTAINERS

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CONTAINER IMAGE SECURITY

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4 ● Are there known vulnerabilities in the application layer? ● Are the runtime and OS layers up to date? ● How frequently will the container be updated and how will I know when it’s updated? CONTENT: EACH LAYER MATTERS CONTAINER OS RUNTIME APPLICATION CONTENT: EACH LAYER MATTERS AYER MATTERS CONTAINER OS RUNTIME APPLICATION JAR CONTAINER

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SECURITY IMPLICATIONS What’s inside matters…

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A CONVERGED SOFTWARE SUPPLY CHAIN

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code config data Kubernetes configmaps secrets Container image Traditional   data services, Kubernetes   persistent volumes TREAT CONTAINERS AS IMMUTABLE

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NODE MASTER Container Distributed Store Container ! Secure mechanism for holding sensitive data e.g. ○ Passwords and credentials ○ SSH Keys ○ Certificates ! Secrets are made available as ○ Environment variables ○ Volume mounts ○ Interaction with external systems ! Encrypted in transit ! Never rest on the nodes SECRETS

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IMAGE SIGNING Validate what images and version are running

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CONTAINER REGISTRY SECURITY

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64% of official images in Docker Hub   contain high priority security vulnerabilities examples: ShellShock (bash) Heartbleed (OpenSSL) Poodle (OpenSSL) Source: Over 30% of Official Images in Docker Hub Contain High Priority Security Vulnerabilities, Jayanth Gummaraju, Tarun Desikan, and Yoshio Turner, BanyanOps, May 2015 (http://www.banyanops.com/pdf/BanyanOps-AnalyzingDockerHub-WhitePaper.pdf) WHAT’S INSIDE THE CONTAINER MATTERS

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PRIVATE REGISTRY

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CI WITH CONTAINERS

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CI/CD PIPELINE Continuous Integration Continuous Build Continuous Deployment Developer -> Source -> Git Git -> RPMS -> Images-> Registry Images from   Registry -> Clusters

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CI/CD with Security

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Security CONTINUOUS INTEGRATION WITH SECURITY SCAN

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CUSTOM SUPPLY CHAIN

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FROM fedora:latest CMD echo “Hello” Build file Build Best Practices • Treat as a Blueprint • Don’t login to build/configure • Version control build file • Be explicit with versions, not latest • Each Run creates a new layer BUILDS

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Compliance and Vulnerability Audits with OpenSCAP

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AUTOMATED SECURITY SCANNING with OpenSCAP Reports Scan SCAP Security Guide for RHEL CCE-27002-5 Set Password Minimum Length Content Scan physical servers, virtual machines, docker images and containers  for Security Policy Compliance (CCEs) and known Security Vulnerabilities (CVEs)

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Standard Docker Host Security Profile Java Runtime Environment (JRE) Upstream Firefox STIG RHEL OSP STIG Red Hat Corporate Profile for Certified Cloud Providers (RH CCP) STIG for Red Hat Enterprise Linux 6, 7 Server STIG for Red Hat Virtualization Hypervisor Common Profile for General-Purpose Debian Systems Common Profile for General-Purpose Fedora Systems Common Profile for General-Purpose Ubuntu Systems Payment Card Industry – Data Security Standard (PCI-DSS) v3 U.S. Government Commercial Cloud Services (C2S) CNSSI 1253 Low/Low/Low Control Baseline for Red Hat Enterprise Linux 7 Criminal Justice Information Services (CJIS) Security Policy Unclassified Information in Non-federal Information Systems and Organizations (NIST 800-171) U.S. Government Configuration Baseline (NIAP OSPP v4.0, USGCB, STIG) Security Policies in SCAP Security Guide (partial)

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SECURITY POLICY REPORT

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SECURITY POLICY REMEDIATION

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SECURITY VULNERABILITY REPORT

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RAPID INNOVATION & EXPERIMENTATION

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”only about 1/3 of ideas improve the metrics   they were designed to improve.”  Ronny Kohavi, Microsoft (Amazon) MICROSERVICES RAPID INNNOVATION & EXPERIMENTATION

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CONTINUOUS FEEDBACK LOOP

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A/B TESTING USING CANARY DEPLOYMENTS

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50% 50% Version 1.2 Version 1 Route Version 1.2 25% Conversion Rate 30% Conversion Rate CANARY DEPLOYMENTS

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CD WITH CONTAINERS

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CONTINUOUS DEPLOYMENT WITH CONTAINERS

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CD with Security

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CONTINUOUS DELIVERY DEPLOYMENT STRATEGIES DEPLOYMENT STRATEGIES • Blue / Green deployment • Rolling updates • Canary deployments • A / B testing

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Version 1 BLUE / GREEN DEPLOYMENT Route

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Version 1 BLUE / GREEN DEPLOYMENT Version 1.2

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Version 1 Tests / CI BLUE / GREEN DEPLOYMENT Version 1.2

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Version 1 Version 1.2 BLUE / GREEN DEPLOYMENT Route Version 1.2

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Version 1 BLUE / GREEN DEPLOYMENT Rollback Route Version 1.2

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Version 1 Version 1 Version 1 Version 1.2 ` Tests / CI ROLLING UPDATES with ZERO DOWNTIME

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Deploy new version and wait until it’s ready… Version 1 Version 1 V1.2 Health Check: Readiness   Probe e.g. tcp, http, script V1

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Each container/pod is updated one by one Version 1.2 50% Version 1 V1 V1.2

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Each container/pod is updated one by one Version 1.2 Version 1.2 Version 1.2 100%

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CONTAINER HOST SECURITY

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Kernel Hardware (Intel, AMD) or Virtual Machine Containers Containers Containers Unit File Docker Image Container CLI SYSTEMD Cgroups Namespaces SELinux Drivers CONTAINERS ARE LINUX seccomp Read Only mounts

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CGROUPS - RESOURCE ISOLATION

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NAMESPACES - PROCESS ISOLATION

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SELINUX - MANDATORY ACCESS CONTROLS Password Files Web Server Attacker Discretionary Access Controls   (file permissions) Mandatory Access Controls   (selinux) Internal Network Firewall Rules Password Files Firewall Rules Internal Network Web Server selinux policy

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SECCOMP - DROPPING PRIVILEGES

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READ ONLY MOUNTS

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Best Practices • Don’t run as root • Limit SSH Access • Use namespaces • Define resource quotas • Enable logging • Apply Security Errata • Apply Security Context and seccomp filters http://blog.kubernetes.io/2016/08/security-best-practices-kubernetes-deployment.html CONTAINER HOST SECURITY Kernel Hardware (Intel, AMD) or Virtual Machine Containers Containers Containers Unit File Docker Image Container SYSTEM Cgroup Namespace SELinu Driver seccom Read Only

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Network isolation Storage API & Platform access Monitoring & Logging Federated clusters Registry Container host {} Builds CI/CD Images SECURING CONTAINERS

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NETWORK ISOLATION

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Network Namespace   provides resource isolation NETWORK ISOLATION Multi-Environment Multi-Tenant

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NETWORK POLICY example:   all pods in namespace ‘project-a’ allow traffic   from any other pods in the same namespace.”

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STORAGE SECURITY

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Local Storage Quota Security Context Constraints STORAGE SECURITY

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API & PLATFORM ACCESS

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Authentication via OAuth tokens and SSL certificate Authorization via Policy Engine checks User/Group Defined Roles API & PLATFORM ACCESS

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MONITORING & LOGGING

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Aggregate platform and application log access via Kibana + Elasticsearch LOGGING

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Historical CPU and Memory usage provided by Heapster, Hawkular, Cassandra MONITORING

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FEDERATION

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Amazon East OpenStack FEDERATED CLUSTERS

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Google Global Routing Amazon/Google Global API https://commons.wikimedia.org/wiki/File:Iscosahedral_water_cluster_100.png Java App1 Amazon East Java App1 Amazon West Java App1 FEDERATED SERVICES

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Deployment Frequency Lead Time Deployment  Failure Rate Mean Time to Recover 99.999 Service Availability DEVSECOPS METRICS Compliance Score

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THANK YOU linkedin: Chris Van Tuin email: [email protected] twitter: @chrisvantuin