🎨Only require sticky connection on specific endpoints (🚨🚨)

[sanderegg]

What do these changes do?

only require sticky connection for

/v0/projects?fromStudy=,	  
/v0/projects:clone, 
/v0/projects/{project_Id}/nodes/{node_id}:stop, /v0/storage/locations/{location_id}/paths/{path}:size, /v0/storage/locations/{location_id}/-/paths:batchDelete, 
/v0/storage/locations/{location_id}/export-data
/v0/tasks-legacy/

These entrypoints rely on in-process tasks to be available, otherwise these actions fail.
Once the tasks get completely process agnostic, the sticky connection shall be completely removed and then scaling up webservers shall have a direct effect when the number of users increases (see #7778).

Also this PR sets the number of replicas of the webserver to 2 to decrease the chances of adding in-process tasks again.

NOTE: This is a rather risky PR on which we agreed to merge only after the current release

Related issue/s

• fixes Only use sticky connections for specific endpoints where it is required #7777

How to test

Dev-ops

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.93%. Comparing base (73a45bc) to head (72c3fb2).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7839      +/-   ##
==========================================
+ Coverage   87.89%   87.93%   +0.04%     
==========================================
  Files        1837     1830       -7     
  Lines       71032    70842     -190     
  Branches     1219     1219              
==========================================
- Hits        62434    62296     -138     
+ Misses       8255     8203      -52     
  Partials      343      343              

Flag	Coverage Δ
integrationtests	64.22% <ø> (+0.02%)	⬆️
unittests	86.52% <ø> (+0.03%)	⬆️

Components	Coverage Δ
api	∅ <ø> (∅)
pkg_aws_library	93.92% <ø> (ø)
pkg_dask_task_models_library	79.62% <ø> (ø)
pkg_models_library	93.19% <ø> (ø)
pkg_notifications_library	85.26% <ø> (ø)
pkg_postgres_database	88.16% <ø> (ø)
pkg_service_integration	69.92% <ø> (ø)
pkg_service_library	71.81% <ø> (ø)
pkg_settings_library	90.90% <ø> (ø)
pkg_simcore_sdk	85.05% <ø> (+0.05%)	⬆️
agent	96.29% <ø> (ø)
api_server	91.76% <ø> (ø)
autoscaling	96.03% <ø> (ø)
catalog	92.29% <ø> (ø)
clusters_keeper	99.13% <ø> (ø)
dask_sidecar	91.57% <ø> (-0.23%)	⬇️
datcore_adapter	97.94% <ø> (ø)
director	76.73% <ø> (ø)
director_v2	91.13% <ø> (+0.07%)	⬆️
dynamic_scheduler	96.69% <ø> (ø)
dynamic_sidecar	90.09% <ø> (ø)
efs_guardian	89.65% <ø> (ø)
invitations	93.00% <ø> (ø)
payments	92.57% <ø> (ø)
resource_usage_tracker	89.09% <ø> (ø)
storage	87.78% <ø> (+0.24%)	⬆️
webclient	∅ <ø> (∅)
webserver	87.59% <ø> (-0.02%)	⬇️

---

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[sanderegg]

Blocked until release v1.83.0 is out
release was postponed so this can go in now.

[Copilot]

Pull Request Overview

This PR scopes sticky session routing to only the required endpoints and increases the webserver replica count to improve resilience and allow early detection of in-process tasks.

• Scale webserver service to 2 replicas for early detection of in-process tasks
• Remove global sticky session labels and introduce a dedicated Traefik service/router for specific endpoints
• Clean up blank lines in compose files and add new Python extra paths in VSCode settings

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
services/docker-compose.yml	Added replicas: 2, removed global sticky labels, introduced dedicated sticky service
services/docker-compose.local.yml	Updated local sticky service label and secure flag
.vscode/settings.template.json	Added common-library and dask-task-models-library to Python extraPaths

Comments suppressed due to low confidence (2)

services/docker-compose.local.yml:162

• [nitpick] Consider adding sticky.cookie.httponly and sticky.cookie.samesite labels in local compose, so dev mirrors production cookie security settings.

-        - traefik.http.services.${SWARM_STACK_NAME}_webserver_sticky.loadbalancer.sticky.cookie.secure=false

services/docker-compose.yml:1359

• [nitpick] This single-line array is harder to read and maintain compared to the previous multiline format; consider restoring multiline YAML for clarity.

[ "redis-server", "--save", "60 1", "--loglevel", "verbose", "--databases", "10", "--appendonly", "yes", "--requirepass", "${REDIS_PASSWORD}" ]

[mrnicegyu11]

very very nice effort, thx

[pcrespov]

thx

[YuryHrytsuk]

Please, let me know what is the exact requirement for static-webserver replica's count.

I will then create a corresponding PR for osparc-ops-environments repo

[sanderegg]

@mergify queue

[mergify]

queue

✅ The pull request has been merged automatically

The pull request has been merged automatically at cf51daf

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[YuryHrytsuk]

Thanks!