BC-11383 - Rocketchat removal

[Metauriel]

Description

Links to Tickets or other pull requests

https://ticketsystem.dbildungscloud.de/browse/BC-11383

hpi-schul-cloud/schulcloud-server#6197
hpi-schul-cloud/schulcloud-client#3785
hpi-schul-cloud/nuxt-client#4120
#1376

Screenshots of UI changes

Approval for review

• DEV: If the API or client code was changed, all necessary code generation or synchronization steps were completed and tested.
• QA: In addition to review, the code has been manually tested (if manual testing is possible)
• All points were discussed with the ticket creator, support-team or product owner. The code upholds all quality guidelines from the PR-template.

[Copilot]

Pull request overview

This PR removes the RocketChat deployment from the Ansible-based deployment configuration, eliminating the role, its Kubernetes manifests, and all related environment/resource variables so RocketChat is no longer managed or referenced in this repo.

Changes:

• Removed the rocketchat Ansible role (tasks, meta, and Kubernetes manifest templates).
• Removed RocketChat-related variables (DNS prefix, replicas, resource limits, cron schedule, feature toggle).
• Removed RocketChat from playbooks and from the namespace-activator scaled-object deployment list.

Reviewed changes

Copilot reviewed 35 out of 35 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
ansible/roles/rocketchat/templates/svc.yml.j2	Removed RocketChat Service manifest template.
ansible/roles/rocketchat/templates/onepassword.yml.j2	Removed 1Password item manifest template for RocketChat secrets.
ansible/roles/rocketchat/templates/ingress.yml.j2	Removed RocketChat Ingress manifest template.
ansible/roles/rocketchat/templates/fixup-job.yml.j2	Removed RocketChat fixup CronJob manifest template.
ansible/roles/rocketchat/templates/fixup-configmap.yml.j2	Removed RocketChat fixup script ConfigMap template.
ansible/roles/rocketchat/templates/external-secret.yml.j2	Removed ExternalSecret manifest template for RocketChat.
ansible/roles/rocketchat/templates/deployment.yml.j2	Removed RocketChat Deployment manifest template.
ansible/roles/rocketchat/templates/configmap.yml.j2	Removed RocketChat runtime ConfigMap template.
ansible/roles/rocketchat/tasks/main.yml	Removed all role tasks that applied RocketChat manifests.
ansible/roles/rocketchat/meta/main.yml	Removed RocketChat role metadata.
ansible/roles/namespace-activator-scaled-objects/defaults/main.yml	Removed rocketchat-deployment from scaled-object target list.
ansible/playbook_rollout.yml	Removed rocketchat role from rollout playbook.
ansible/playbook.yml	Removed rocketchat role from main playbook.
ansible/host_vars/ref-thr/pod.yml	Removed RocketChat replica variable from ref-thr.
ansible/host_vars/ref-nbc/pod.yml	Removed RocketChat replica variable from ref-nbc.
ansible/host_vars/ref-dbc/pod.yml	Removed RocketChat replica variable from ref-dbc.
ansible/host_vars/ref-brb/pod.yml	Removed RocketChat replica variable from ref-brb.
ansible/host_vars/ref-audit/pod.yml	Removed RocketChat replica variable from ref-audit.
ansible/host_vars/prod-thr/pod.yml	Removed RocketChat replica variable from prod-thr.
ansible/host_vars/prod-nbc/pod.yml	Removed RocketChat replica variable from prod-nbc.
ansible/host_vars/prod-dbc/pod.yml	Removed RocketChat replica variable from prod-dbc.
ansible/host_vars/prod-dbc/cfg.yml	Removed RocketChat DNS prefix configuration from prod-dbc.
ansible/host_vars/prod-brb/pod.yml	Removed RocketChat replica variable from prod-brb.
ansible/host_vars/dev-loadtest-01/rocketchat.yml	Removed host-specific RocketChat DNS prefix config file.
ansible/group_vars/reference/rocketchat.yml	Removed reference env RocketChat image/DNS settings.
ansible/group_vars/reference/resources.yml	Removed RocketChat resource variables from reference defaults.
ansible/group_vars/production/rocketchat.yml	Removed production env RocketChat image/DNS settings.
ansible/group_vars/production/resources.yml	Removed RocketChat resource variables from production defaults.
ansible/group_vars/loadtest/rocketchat.yml	Removed loadtest env RocketChat image/DNS settings.
ansible/group_vars/loadtest/pod.yml	Removed RocketChat replica variable from loadtest defaults.
ansible/group_vars/infra/rocketchat.yml	Removed infra env RocketChat image/DNS settings.
ansible/group_vars/infra/pod.yml	Removed RocketChat replica variable from infra defaults.
ansible/group_vars/develop/rocketchat.yml	Removed develop env RocketChat image/DNS settings.
ansible/group_vars/develop/cfg.yml	Removed RocketChat fixup cron schedule variable from develop config.
ansible/group_vars/all/with.yml	Removed WITH_ROCKET_CHAT toggle from global feature toggles.

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