This page is holding information about requirements for RA21 Discovery operations, in terms of required infrastructure and resources. RESPONSIBLE: Information provided in this page is initially provided by the development team, and revised based on the need or in a periodic service check in responsibility of the Service Owner. |
Infrastructure Requirements
Indicate requirements for servers, VMs or containers, grouping the requirements for multiple VMs in one column. Add as many columns as necessary, adding the sensible distinguisher for each group that will enable its later identification.
| VM requirements | Backend Site Metadata servers per site (at least 4 sites). One more site for QA/Testing | ||
|---|---|---|---|
| Description of usage | MDQ | Metadata aggregation | HA Proxy |
| Number of VMs with same specification | 2 | 1 | 1 |
| Hardware requirements (CPU, RAM, disk space) | 2 vCPU, 16G, 20G disk | 2 vCPU, 16G, 20G disk | 2 vCPU, 16G, 20G disk |
| Network connection requirements | Public IPV4 | Public IPV4 | Public IPV4 |
| IP addressing requirements (IPv4, IPv6, public route) | IPv4 or IPv6 or both - will be fronted by CDNs | IPv4 or IPv6 or both - will be fronted by CDNs | IPv4 or IPv6 or both - will be fronted by CDNs |
Naming requirements1 | md-[NN].[SITE].[PROVIDER].[REGION].seamlessacccess.org* | a.[SITE].[PROVIDER].[REGION].seamlessacccess.org* | md.[SITE].[PROVIDER].[REGION].seamlessacccess.org* |
| Other resource requirements | thiss.io CDN |
|---|---|
| Other requirement and its specifics | Multiple contracts for commercial CDNs - fastly for Europe provided by GEANT project |
Infrastructure Hosting Requirements
Hosting requirements | Applying to Backend Site Metadata servers per site (at least 4 sites) |
|---|---|
Availability | 247 |
Backup (what, frequency, retention period) | none |
Monitoring and alerting1 | Nagios instance provided by SUNET for monitoring of the VMs Status.io for creating public status pages Pingdome.org for monitoring of webpages from various locations |
Measuring and Reporting2 | Usage can be measured by looking at traffic from CDN. |
Log retention3 | No logs are kept. |
Security policy for access and usage4 | Security groups (openstack or equivalent) or external FW. Rules will be defined. |
1As the minimum, network accessibility (outside of LAN) and hardware resource usage must be monitored. Indicate if some of these resources can be deemed critical so that adequate thresholds for alerting are implemented. Additional, indicate which specific applications uptime and operational health must be monitored and alerting implemented.
2Define what should be measured, how and with what period in order to deliver appropriate reporting relating to KPIs, usage, etc.
3Define which logs should be kept in order to have debugging data and data in case of misuse of the service, and how long logs should be retained.
4Define the policy for limiting access to the piece of the infrastructure and where it should be implemented (system level, network level etc.)
System and Application Maintenance Requirements
System and application requirements | Applying to Backend Site Metadata servers per site (at least 4 sites) |
|---|---|
Operating system | Ubuntu |
Applications1 | defined in the OLA |
| Maintenance hours2 | extended office hours |
Configuration management3 | defined in the OLA |
1 List the applications installed on a system, and add corresponding licenses where applicable.
2 Define the appropriate time window for regular maintenance or give some recommendations.
3 Applies to automatised configuration management. Describe the system used.
Human Resources Requirements
Indicate requirements both in skills and manpower needed, for personnel needed for the DevOps team (that maintains service specific applications) and for L2 support.
Human resources requirements | Applying to Backend Site Metadata servers per site (at least 2 sites) |
|---|---|
Description | SRE/NOC |
Manpower (in % of FTE) | 50% |
| Recommended number of persons (considering backup) | 2 |
| Skills | Same as InAcademia requirements |