Also remove wildcard DNS record

See merge request openappstack/bootstrap!72

Use ansible_mitogen plugin to speedup deploys

Closes #102

See merge request openappstack/bootstrap!47

Closes #102

mitogen speeds up an ansible run, according to the docs:
" Expect a 1.25x - 7x speedup and a CPU usage reduction of at least 2x, …"
The problem is that we need to ship a bundled version of it since atm
you need to provide the path to the python module, which varies according
to the way how ppl install it (venv, pip user vs. system installation etc).
See https://github.com/dw/mitogen/issues/568 for details.

Resolve "Remove stale CI droplets after a given time"

Closes #28

See merge request openappstack/bootstrap!79

Add nextcloud behave test

Closes #118

See merge request openappstack/bootstrap!67

You can use "!ci_dont_terminate" in your commit msg to disable
the last CI step to debug even successful pipelines.

!ci_dont_terminate

Test cert openssl

Closes #132

See merge request openappstack/bootstrap!75

Resolve "include nextcloud-collabora integration"

Closes #133

See merge request openappstack/bootstrap!74

We now add the letsencrypt staging CA bundle to the trust store
and validate certs against it.

Closes #132

Resolve "Use tags for branch names in the docker repository"

Closes #129

See merge request openappstack/bootstrap!71

Resolve "cert-manager and nginx are not configured properly"

Closes #127

See merge request openappstack/bootstrap!70

Install unattended-upgrades (closes #124)

Closes #124

See merge request openappstack/bootstrap!66

Resolve "Remove failed helm deployments before running helmfile"

Closes #110

See merge request openappstack/bootstrap!68

Resolve "Ansible fails updating the ClusterIssuer if ran twice"

Closes #126

See merge request openappstack/bootstrap!69