providers/proxy: improve SLO by backchannel logging out sessions

[BeryJu]

Details

Improve provider SLO by sending a ws message when a user logs out/a session expires

#2023

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Checklist

• Local tests pass (ak test authentik/)
• The code has been formatted (make lint-fix)

If an API change has been made

• The API schema has been updated (make gen-build)

If changes to the frontend have been made

• The code has been formatted (make web)
• The translation files have been updated (make i18n-extract)

If applicable

• The documentation has been updated
• The documentation has been formatted (make website)

[netlify]

✅ Deploy Preview for authentik-storybook canceled.

Name	Link
🔨 Latest commit	f2226ce
🔍 Latest deploy log	https://app.netlify.com/sites/authentik-storybook/deploys/6522cfd1341e560008b43af3

[codecov]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (b90ed6b) 92.68% compared to head (f2226ce) 92.67%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7099      +/-   ##
==========================================
- Coverage   92.68%   92.67%   -0.00%     
==========================================
  Files         567      568       +1     
  Lines       28014    28039      +25     
==========================================
+ Hits        25961    25982      +21     
- Misses       2053     2057       +4     

Flag	Coverage Δ
e2e	51.19% <84.62%> (+0.04%)	⬆️
integration	26.35% <61.54%> (+0.05%)	⬆️
unit	89.56% <84.62%> (-<0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
authentik/outposts/tasks.py	75.27% <100.00%> (ø)
authentik/providers/proxy/signals.py	100.00% <100.00%> (ø)
authentik/outposts/channels.py	92.21% <66.67%> (-1.03%)	⬇️
authentik/providers/proxy/tasks.py	66.67% <70.00%> (+4.17%)	⬆️

... and 2 files with indirect coverage changes

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[github-actions]

authentik PR Installation instructions

Instructions for docker-compose

Add the following block to your .env file:

AUTHENTIK_IMAGE=ghcr.io/goauthentik/dev-server
AUTHENTIK_TAG=gh-providers-proxy-better-slo-p1-1696780916-f2226ce
AUTHENTIK_OUTPOSTS__CONTAINER_IMAGE_BASE=ghcr.io/goauthentik/dev-%(type)s:gh-%(build_hash)s

For arm64, use these values:

AUTHENTIK_IMAGE=ghcr.io/goauthentik/dev-server
AUTHENTIK_TAG=gh-providers-proxy-better-slo-p1-1696780916-f2226ce-arm64
AUTHENTIK_OUTPOSTS__CONTAINER_IMAGE_BASE=ghcr.io/goauthentik/dev-%(type)s:gh-%(build_hash)s

Afterwards, run the upgrade commands from the latest release notes.

Instructions for Kubernetes

Add the following block to your values.yml file:

authentik:
    outposts:
        container_image_base: ghcr.io/goauthentik/dev-%(type)s:gh-%(build_hash)s
image:
    repository: ghcr.io/goauthentik/dev-server
    tag: gh-providers-proxy-better-slo-p1-1696780916-f2226ce

For arm64, use these values:

authentik:
    outposts:
        container_image_base: ghcr.io/goauthentik/dev-%(type)s:gh-%(build_hash)s
image:
    repository: ghcr.io/goauthentik/dev-server
    tag: gh-providers-proxy-better-slo-p1-1696780916-f2226ce-arm64

Afterwards, run the upgrade commands from the latest release notes.