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Introduction to the Globus PaaS
Vas Vasiliadis
vas@uchicago.edu
STFC – January 10, 2019
Globus serves as…
A platform for building science
gateways, web portals and
other applications in support of
research and education
2
Example web apps that leverage Globus
3
Globus Auth
(identity and access management)
…
GlobusAPIs
(Transfer,Search,Identifiers,…)
GlobusConnect
Data Publication
File Sharing
File Transfer, Sync
Globus Platform-as-a-Service
Data Automation
PaaS Security Challenges – Globus Auth
• Make it easy for developers to provide login for
their apps (web, mobile, desktop, command line)
• …and protect all REST API communications
o App à Globus service (MRDP, Jupyter Notebook)
o App à non-Globus service (graph service in MRDP)
o Service à Service
• …while
– Not introducing yet another identity
– Providing a platform to consolidate existing identities
– Providing a least privileges security model (via consents)
– Being web friendly and language/framework agnostic
5
Based on widely used web standards
• OAuth 2.0 Authorization Framework (a.k.a. OAuth2)
• OpenID Connect Core 1.0 (a.k.a. OIDC)
• Access via OAuth2 and OIDC libraries of your choice
– Google OAuth Client Libraries, Apache mod_auth_openidc, etc.
– Globus Python SDK
6
docs.globus.org/api/auth
Authorization Code Grant
7
Client
(Web Portal,
Application,
Jupyter)
Globus Transfer
(Resource Server)
Globus Auth
(Authorization
Server)
5. Authenticate using client id
and secret, send authorization
code
Browser (User)
1. Access
portal
2.
Redirects
user
3. User authenticates and
consents
4. Authorization
code
6. Access token(s)
7. Authenticate with access
token(s) to give the client
the authority invoke the
transfer service
Identity
Provider
Globus Platform
Transfer API
Globus Transfer API
• Globus Web App consumes public Transfer API
• REST API: Resources/actions named by URL
– Query params allow refinement (e.g., filter)
• Globus APIs use JSON for documents and resource
representations
• Requests authorized via Globus Auth issued OAuth2
access token
– Authorization: Bearer asdflkqhafsdafeawk
docs.globus.org/api/transfer
9
Globus Python SDK
• Python client library for the Globus Auth and Transfer
REST APIs
• globus_sdk.TransferClient class handles
connection management, security, framing,
marshaling
from globus_sdk import TransferClient
tc = TransferClient()
globus.github.io/globus-sdk-python
10
TransferClient low-level calls
• Thin wrapper around REST API
– post(), get(), update(), delete()
get(path, params=None, headers=None, auth=None,
response_class=None)
o path – path for the request, with or without leading slash
o params – dict to be encoded as a query string
o headers – dict of HTTP headers to add to the request
o response_class – class response object, overrides the client’s
default_response_class
o Returns: GlobusHTTPResponse object
11
TransferClient higher-level calls
• One method for each API resource and HTTP verb
• Largely direct mapping to REST API
endpoint_search(filter_fulltext=None,
filter_scope=None,
num_results=25,
**params)
12
API walkthrough using Jupyter Notebook
• Use the Globus JupyterHub: jupyter.demo.globus.org
– Sign in with Globus and verify the consents
– Click “Start My Server” (this will take about a minute)
– Navigate to: globus-jupyter-notebooks à GlobusWorldTour
– Open Platform_Introduction_Native_App_Auth.ipynb
• If you misstep and want to start over…
– Close your notebook and navigate back to the root folder
– Open and run the NotebookPuller.ipynb notebook
• Access Globus notebooks outside of our JupyterHub:
github.com/globus/globus-jupyter-notebooks
13
Endpoint Search
• Plain text search for endpoint
– Searches owner, display name, keywords, description,
organization, department
– Full word and prefix match
• Limit search to pre-defined scopes
– all, my-endpoints, recently-used, in-use, shared-
by-me, shared-with-me
• Returns: List of endpoint documents
14
Endpoint Management
• Get endpoint (by id)
• Update endpoint
• Create & delete (shared) endpoints
• Manage endpoint servers
15
Endpoint Activation
• Activating endpoint means binding a credential to an
endpoint for login
• Globus Connect Server endpoint that have MyProxy
or MyProxy OAuth identity provider require login via
web
• Auto-activate
– Globus Connect Personal and Shared endpoints use Globus-
provided credential
– Must auto-activate before any API calls to endpoints
16
File operations
• List directory contents (ls)
• Make directory (mkdir)
• Rename
• Note:
– Path encoding & UTF gotchas
– Don’t forget to auto-activate first
17
Task submission
• Asynchronous operations
– Transfer
o Sync level option
– Delete
• Get submission_id, followed by submit
– Once and only once submission
18
Task management
• Get task by id
• Get task_list
• Update task by id (label, deadline)
• Cancel task by id
• Get event list for task
• Get task pause info
19
Shared endpoints and access rules (ACL)
• Shared Endpoint – create / delete / get info / get list
• Administrator role required to delegate access managers
• Access manager role required to manage
permissions/ACL
• Operations:
– Get list of access rules
– Get access rule by id
– Create access rule
– Update access rule
– Delete access rule
20
Management API
• Allow endpoint administrators to monitor and manage
all tasks with endpoint
– Task API is essentially the same as for users
– Information limited to what they could see locally
• Cancel tasks
• Pause rules
21
Globus Helper Pages
• Globus pages designed for use by your web apps
– Browse Endpoint
– Activate Endpoint
– Select Group
– Manage Identities
– Manage Consents
– Logout
docs.globus.org/api/helper-pages
22
Example
Modern Research
Data Portal
https://docs.globus.org/modern-research-data-portal/
Globus PaaS developer resources
Python SDK
Sample
Application
docs.globus.org/api github.com/globus
Jupyter Notebook
Support resources
• Globus documentation: docs.globus.org
• Helpdesk and issue escalation: support@globus.org
• Customer engagement team
• Globus professional services team
– Assist with portal/gateway/app architecture and design
– Develop custom applications that leverage the Globus platform
– Advise on customized deployment and integration scenarios

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Introduction to the Globus PaaS (GlobusWorld Tour - STFC)

  • 1. Introduction to the Globus PaaS Vas Vasiliadis vas@uchicago.edu STFC – January 10, 2019
  • 2. Globus serves as… A platform for building science gateways, web portals and other applications in support of research and education 2
  • 3. Example web apps that leverage Globus 3
  • 4. Globus Auth (identity and access management) … GlobusAPIs (Transfer,Search,Identifiers,…) GlobusConnect Data Publication File Sharing File Transfer, Sync Globus Platform-as-a-Service Data Automation
  • 5. PaaS Security Challenges – Globus Auth • Make it easy for developers to provide login for their apps (web, mobile, desktop, command line) • …and protect all REST API communications o App à Globus service (MRDP, Jupyter Notebook) o App à non-Globus service (graph service in MRDP) o Service à Service • …while – Not introducing yet another identity – Providing a platform to consolidate existing identities – Providing a least privileges security model (via consents) – Being web friendly and language/framework agnostic 5
  • 6. Based on widely used web standards • OAuth 2.0 Authorization Framework (a.k.a. OAuth2) • OpenID Connect Core 1.0 (a.k.a. OIDC) • Access via OAuth2 and OIDC libraries of your choice – Google OAuth Client Libraries, Apache mod_auth_openidc, etc. – Globus Python SDK 6 docs.globus.org/api/auth
  • 7. Authorization Code Grant 7 Client (Web Portal, Application, Jupyter) Globus Transfer (Resource Server) Globus Auth (Authorization Server) 5. Authenticate using client id and secret, send authorization code Browser (User) 1. Access portal 2. Redirects user 3. User authenticates and consents 4. Authorization code 6. Access token(s) 7. Authenticate with access token(s) to give the client the authority invoke the transfer service Identity Provider
  • 9. Globus Transfer API • Globus Web App consumes public Transfer API • REST API: Resources/actions named by URL – Query params allow refinement (e.g., filter) • Globus APIs use JSON for documents and resource representations • Requests authorized via Globus Auth issued OAuth2 access token – Authorization: Bearer asdflkqhafsdafeawk docs.globus.org/api/transfer 9
  • 10. Globus Python SDK • Python client library for the Globus Auth and Transfer REST APIs • globus_sdk.TransferClient class handles connection management, security, framing, marshaling from globus_sdk import TransferClient tc = TransferClient() globus.github.io/globus-sdk-python 10
  • 11. TransferClient low-level calls • Thin wrapper around REST API – post(), get(), update(), delete() get(path, params=None, headers=None, auth=None, response_class=None) o path – path for the request, with or without leading slash o params – dict to be encoded as a query string o headers – dict of HTTP headers to add to the request o response_class – class response object, overrides the client’s default_response_class o Returns: GlobusHTTPResponse object 11
  • 12. TransferClient higher-level calls • One method for each API resource and HTTP verb • Largely direct mapping to REST API endpoint_search(filter_fulltext=None, filter_scope=None, num_results=25, **params) 12
  • 13. API walkthrough using Jupyter Notebook • Use the Globus JupyterHub: jupyter.demo.globus.org – Sign in with Globus and verify the consents – Click “Start My Server” (this will take about a minute) – Navigate to: globus-jupyter-notebooks à GlobusWorldTour – Open Platform_Introduction_Native_App_Auth.ipynb • If you misstep and want to start over… – Close your notebook and navigate back to the root folder – Open and run the NotebookPuller.ipynb notebook • Access Globus notebooks outside of our JupyterHub: github.com/globus/globus-jupyter-notebooks 13
  • 14. Endpoint Search • Plain text search for endpoint – Searches owner, display name, keywords, description, organization, department – Full word and prefix match • Limit search to pre-defined scopes – all, my-endpoints, recently-used, in-use, shared- by-me, shared-with-me • Returns: List of endpoint documents 14
  • 15. Endpoint Management • Get endpoint (by id) • Update endpoint • Create & delete (shared) endpoints • Manage endpoint servers 15
  • 16. Endpoint Activation • Activating endpoint means binding a credential to an endpoint for login • Globus Connect Server endpoint that have MyProxy or MyProxy OAuth identity provider require login via web • Auto-activate – Globus Connect Personal and Shared endpoints use Globus- provided credential – Must auto-activate before any API calls to endpoints 16
  • 17. File operations • List directory contents (ls) • Make directory (mkdir) • Rename • Note: – Path encoding & UTF gotchas – Don’t forget to auto-activate first 17
  • 18. Task submission • Asynchronous operations – Transfer o Sync level option – Delete • Get submission_id, followed by submit – Once and only once submission 18
  • 19. Task management • Get task by id • Get task_list • Update task by id (label, deadline) • Cancel task by id • Get event list for task • Get task pause info 19
  • 20. Shared endpoints and access rules (ACL) • Shared Endpoint – create / delete / get info / get list • Administrator role required to delegate access managers • Access manager role required to manage permissions/ACL • Operations: – Get list of access rules – Get access rule by id – Create access rule – Update access rule – Delete access rule 20
  • 21. Management API • Allow endpoint administrators to monitor and manage all tasks with endpoint – Task API is essentially the same as for users – Information limited to what they could see locally • Cancel tasks • Pause rules 21
  • 22. Globus Helper Pages • Globus pages designed for use by your web apps – Browse Endpoint – Activate Endpoint – Select Group – Manage Identities – Manage Consents – Logout docs.globus.org/api/helper-pages 22
  • 24. Globus PaaS developer resources Python SDK Sample Application docs.globus.org/api github.com/globus Jupyter Notebook
  • 25. Support resources • Globus documentation: docs.globus.org • Helpdesk and issue escalation: support@globus.org • Customer engagement team • Globus professional services team – Assist with portal/gateway/app architecture and design – Develop custom applications that leverage the Globus platform – Advise on customized deployment and integration scenarios