See #60 for details.
For Ci droplets we use LE staging CA, so we need to provide curl
with the CA cert. Surprisingly, curl will still validate certs from
LE production CA even if "--cacert=./letsencrypt_fakelerootx1.pem" is
used.

See #53

See #52

Closes #52

Closes one task of #41

On CI we still prefer to use alpine system packages
since this is much faster than installing every python
package via pip.

Resolve "Use LE staging for CI"

Closes #60

See merge request openappstack/bootstrap!28

First testinfra example tests

Closes #23

See merge request openappstack/bootstrap!25

Set keycloak pw from bootstrap script

Closes #51

See merge request openappstack/bootstrap!26

Closes: #51

42 ansible playbook

Closes #36, #43, and #42

See merge request openappstack/bootstrap!24

We now have the "timer" ansible callback which brings own timestamps.

Closes: #42

Ansibleize control script

Closes #21

See merge request openappstack/bootstrap!20

Fixes first task in
https://code.greenhost.net/openappstack/bootstrap/issues/21#note_44648

Closes #21

The reason is that we want to reduce code duplication, and use
the oas_control script from ansible, so we don't need to call docker
explicitly as before.
Shell aliases can't be used by ansible conveniently.