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SCS-Spec.md

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SCS Specification Draft 0.1

Must, Should, May, Should Not, Must Not used as in RFCs.

Infrastructure Software

BMC

Should support Redfish for server management (fallback: IPMI)

Host OS: Linux

5.4+

Virtualization: KVM

5.x+

Storage (SDN): Ceph

octopus+

Networking (SDN): OvS/OVN

Identity & Trust -- Primary Owner is GXFS

Must support federation of users

Must support SP role allowing Identities from Open ID Connect (OIDC) IdP

Must support flexible mapping of identity attributes to roles/rights

Should also support SP role with SAML Federation, also allowing mapping rules

Should support IdP role, allowing exposure of locally managed identities to 3rd party SPs via OIDC

IaaS Layer

OpenStack

Victoria or later

Version & Upgrade Policy

Follow SCS: SCS release ~5mo after OpenStack release, 1mo to upgrade to SCS-latest

RefStack, InterOp and Trademark Certification

Must comply (at least) to OpenStack Powered Compute 2020.11

Will move forward with newer SCS releases

Structure

Regions

domains must be cross-region

user management is per domain, thus also cross-region

projects may be cross-region

TL;DR: regions must share identity management (keystone)
Regions may share object storage namespace
Regions should provide a simple method to create network connections between them

Domains

Each customer is assigned a domain

Sub structure (projects) can be managed by customer

User management (local users AND federated users) at domain level

Projects

Customer can create projects (limited by quota)

Customers should have more than one project quota by default

Project deletion: Cloud must revoke tokens.
Cloud may require customer to have cleaned out all resources for project deletion to succeed.
Cloud may do resource cleanup for customer when asked for deletion of project. Resource cleanup may be asynchronous. Resource cleanup must not take longer than 24hrs.

Cloud must remove orphaned resources within 24hrs after project deletion. Billing for orphaned resources must stop within 24hrs after project deletion.

Availability Zones

Compute availability zones must be fire protection zones, must have independent power supply and must be reported by openstack availability zone list --compute.

Block storage (openstack availability zone list --volumes) must be EITHER one AZ for the whole region OR the same set as compute AZs. In the latter case, compute instances must have access to the volumes in the same AZ and may have access to volumes in other AZs.

Networks should not use availability zones. All networks in one region (for one project and connected by a router) should have connectivity. (TODO: Should we allow per-AZ networking? Then mandate same zoning&naming as compute. Or can we make this a must)

Tagging

TBW

Core Services

Keystone (identity) - required

must provide keystone v3

must have option to connect users via OIDC

must provide catalog with all services for auto-discovery

must allow user management

Nova (compute) - required

should support cells?

must support groups and affinity/anti-affinity

should support shelving/unshelving (?)

must support pause/unpause

must support suspend/resume

must support resize

must support rebuild

must support metadata service (shoud be using config drive)

may support lock/unlock

may support rescue/unrescue

must support dynamic block storage attachment / detachment

must support dynamic network interface attachment / detachment

should support (the more robust) config-drive metadata injection; may use network datasource instead

should use placement service for scheduling

must follow flavor specification

must support console log

must (should?) support (no)vnc attachment

Flavors -- see SCS Flavor Spec
Placement - recommended
Cinder (volumes) - required

must support cinderv3

may additionally support cinderv2

must support volume backup function

may support different volume types

may support volume QoS settings

should support volume transfer

should support multiattach

must encrypt data written to disk/SSD

Neutron (networking) - required

must support routers

must support SNAT; SNAT should be enabled by default

must support DHCP and static IP assignment

must offer public network

must offer IPv4 floating IPs

should offer IPv6 support internally (East-West)

may offer IPv6 floating IPs

must allow multiple subnets in a network (mainly for IPv4 plus IPv6 dual-stack)

must support LBaaSv2 as a proxy to Octavia (recommended) or independently

should support FWaaS

should support VPNaaS (IPsec)

may support BGP-VPN

must support security groups

must support port security (allowed address pair settings); port security must be enabled by default

should support DNS integration

Glance (images) - required

must allow users to register own images

must support image sharing (member setting)

must support qcow2 and raw image input

must support bare container format

must not require properties outside of SCS image standard

Images -- see SCS Image Standard Spec
Octavia (load balancer) - required if Neutron LBaaSv2 is not deployed

must support health checks, stickiness, SSL/TLS termination ...

Barbican (secrets) - required
Designate (DNS) - required

Trademark spec (OpenStack Powered DNS 2020.11 add-on)

must allow users to serve their own registered zone

should offer a default domain allowing users to register subdomains as zones

should have a code of conduct on using subdomains (or encode unique identifiers in there)

must be protected against DoS

TODO: Anything needed for secure DNS?

Heat (orchestration) - recommended (maybe required for TOSCA?)

Support at least HOT version 2018-08-31 (Rocky)

Trademark spec (OpenStack Powered Orchestration 2020.11 add-on)

Swift (object storage) - recommended

Should have same namespace as S3

OpenStack Powered (Object) Storage 2020.11 Interop Tests (exceptions needed for Ceph?)

Magnum (container infra) - optional

TODO: Predefined templates?

Freezer (backup aaS) - optional
Mistral (workflow) - optional
Ceilometer (metering) - optional
Gnocchi (metrics) - optional
Panko (events) - optional
Manila (shared filesystems) - optional

OpenStack Powered Shared Filesystem 2020.11 add-on

Ironic (bare metal) - optional
Web Interface - recommended

Horizon may be used

Other IaaS services

Other OpenStack services may be offered

Non-OpenStack services may be added to the catalog, but then must have a provider prefix

TODO: Should we require that providers offer a per-project setting where only SCS-base, SCS-extended or full will be listed in service catalog? Making it easier for dev teams to ensure they don't introduce a dependency by mistake?

S3 (object storage)

must have https support

must provide static web hosting

must not enforce 100 bucket limit

should have policy for bucket naming resolution

must encrypt data stored

should support S3 access controls ... (TBW)

CaaS

Kubernetes as a Service - required

Must provide K8s Cluster API version XX (beta1?)

Must output kubectl config files

Should provide multi-SCS-cloud cluster management

May provide multi-partially-non-SCS-cloud cluster management

Cloud Integration - required

Must provice CSI

Must provide CNI (with proper network separation, not just flat networks)

Registry - required

Must provide registry for customer images

Should provide registry with provider vetted images

Should offer artifact security scanning

Mesh - optional

Should provide mesh discovery

Should offer sidecars for containers

Should offer proxy

Service Catalog - optional

OSB, kyma, ...

Policy Management

OPA ...

Monitoring & Logging

Operator Logging

Must have event log

Operator Monitoring

Health Monitoring

Must have control plane tests (e.g. os-health-monitor)

Must have data plane tests

Capacity Monitoring

Must have capacity monitoring in place (storage, CPU, RAM, network)

User Facing Monitoring

Should have multi-tenant Prometheus service

Should offer scraping of user-defined data exporters

Should have configurable retention/aggregation policies

Should expose relevant metrics from underlaying infra (CaaS/IaaS)

Transparency

Geolocations, Data Centers

Jurisdiction(s) of DCs, Operating Companies, Operator Personel, ...

Security

Patch Policy and Status (firmware, SCS, images, ...)

Should deploy SCS fixes daily

Must have CI pipeline to validate fixes in reference environment

Must include compliance/certification tests in CI (refstack - OpenStack InterOp, TBD k8s test workload)

Must deploy latest SCS release within 1 month

Must update operator-managed images at least monthly (until declared EOL)

Isolation (incl. CPU vuln mitigation)

Must not use HT on L1TF affected (Intel) CPUs except special flavors

Must have current mitigation against CPUs vulnerabilities (latest kernel defaults fine, except HT, see above)

Should use VxLAN for network isolation between tenants (?)

Encryption Policy

Must encrypt all volume data before it hits permanent storage (disk/SSD/nvme)

Encryption keys must be under user control; operator managed keys must not be global and must be rotated

Security Certs

Should have ISO27k1, 27k17, 27k18

...

Pentesting

Operations

Update and Upgrade Policy

Deprecation & Feature Removal Policy

Maintenance Windows and Announcement

SLAs & Refunds

RCAs

Contributions

Support

Proactive Support (newsletters, etc.)

Reactive Support (hotline, chat, tickets, ...)

Pricing

Consumption reports

Consumption alerts

T&C

Technical Setup Documentation

Source Code & Licenses

Complete Software Bill of Materials (BOM)?