ml a462ff1729 Fix provisioning errors found during first real run
- ansible.cfg: suppress Python interpreter discovery warning
- ansible/inventory.ini: add ansible_host; server IP is now defined in
  one place and read dynamically by run-bootstrap.sh
- group_vars/all/ → directory layout so vault.yml is auto-loaded by Ansible
  (previously vault.yml did not match any group name and was silently ignored)
- scripts/run-bootstrap.sh: read server IP from inventory, chmod 600 private
  keys automatically, show actual SSH error when root login fails
- scripts/bootstrap-deploy-user.sh: add sudoers.d entry for passwordless sudo
  (deploy user has no password so sudo group membership alone was not enough)
- nextcloud: fix Redis healthcheck (CMD-SHELL pipe was unreliable in Alpine,
  switched to CMD form with start_period)
- group_vars/all/vars.yml: fix Roundcube image tag (1.6-apache and 1.6 do not
  exist; correct tag is 1.6.x-apache)
- docs/runbook.md: expand prerequisites (SSH keys section), add step 1 for
  setting the server IP, expand bootstrap step with preflight detail, fix
  step numbering
2026-06-28 05:53:29 +02:00
2026-06-27 14:13:23 +02:00

Info:

Server: Strato STRATO VPS Linux VC4-8 Order Number: 9478462

Customer Number: 73171334
Customer Login: https://www.strato.de/apps/CustomerService

Cores: 4 Cores
RAM: 8 GB RAM
Storage: 240 HDD

IPv4: 217.154.207.148
IPv6: 2a01:239:35b:c400::1

OS: Ubuntu 24.04 LTS

DNS Names: cloud.ladkau.de gitea.ladkau.de nextcloud.ladkau.de sso.ladkau.de mail.ladkau.de cr.ladkau.de k8s.ladkau.de

Purpose:

This repository tracks the complete server configuration so the server can be fully reinstalled from scratch using only this repo. Every configuration change must be committed here. The git history serves as the change log.

Architecture:

Provisioning: Ansible Ansible playbooks configure the OS and deploy all services. Roles are idempotent — re-running them brings the server back to the desired state without side effects. The master playbook is ansible/site.yml.

Service runtime: Docker Compose Each service runs as a Docker Compose stack. Compose files live inside their respective Ansible roles (roles//files/docker-compose.yml). This keeps service definition and deployment config together.

Reverse proxy / TLS: Traefik Traefik is the single entry point for all HTTP/HTTPS traffic. It runs as a Docker Compose service and routes to other containers via Docker labels. TLS certificates are issued automatically via Let's Encrypt (ACME).

Repo layout:

ansible/
	inventory.ini        # host address and connection vars
	site.yml             # master playbook — runs all roles in order
	group_vars/all.yml   # shared variables (domains, image versions, ...)
	roles/
		base/            # OS hardening, non-root user, SSH, ufw firewall
		docker/          # Docker Engine + Compose plugin install
		traefik/         # reverse proxy, TLS termination
		gitea/           # self-hosted Git
		nextcloud/       # file storage and collaboration
		sso/             # Single Sign-On
		mail/            # mail server
		registry/        # container registry (cr.ladkau.de)
		k8s/             # k3s Kubernetes node
docs/
	runbook.md           # step-by-step reinstall instructions
scripts/
	run-bootstrap.sh     # bootstrap deploy user on a fresh server
	bootstrap-deploy-user.sh  # runs on server as root — creates deploy user
	check-vault.sh       # verify vault.yml has all required secrets
keys/
	*.pub                # public SSH keys (private keys are gitignored)

SSH keys:

root_cloud_ladkau_de      — root access (initial setup only)
notroot_cloud_ladkau_de   — non-root deploy user (used by Ansible)
S
Description
Infrastructure-as-code for a Strato VPS at cloud.ladkau.de.
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