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

Remove traefik reference (closes #125)

Closes #125

See merge request openappstack/bootstrap!65

Remove dns records

See merge request openappstack/bootstrap!59

119 test certs

Closes #119 and #122

See merge request openappstack/bootstrap!58

Pin git repos to specific versions

Closes #120

See merge request openappstack/bootstrap!60

108 update package cache

Closes #108 and #94

See merge request openappstack/bootstrap!64

Use branch name for image builds

See merge request openappstack/bootstrap!63

Unfortunatly, we still need to update two times the apt package cache:

1. In the very first task before we can install any package (#108).
   apt-transport-https needs to get installed before we can configure
   the docker apt repo (2.)
2. After configuring the docker apt repo, and before installing the
   docker-ce package.

Closes #108

Add cosmos functions

See merge request openappstack/bootstrap!56

Set `allow_failure: true` so we allow traefik/cert-mananger to be slow
and not being able to fetch a valid cert.

Closes #122