By default kubedns and dnsmasq scale when installed.
Dnsmasq is no longer a daemonset. It is now a deployment.
Kubedns is no longer a replicationcluster. It is now a deployment.
Minimum replicas is two (to enable rolling updates).

Reduced memory erquirements for dnsmasq and kubedns

Lower default memory requests

Make etcd data dir configurable.

Closes: #1073
Signed-off-by: Sergii Golovatiuk <sgolovatiuk@mirantis.com>

This is to address out of memory issues on CI as well as help
fit deployments for people starting out with kargo on smaller
machines

Using the command module instead of raw

Align LB defaults with the HA docs

Fix cluster.yml file extension in docs

Increase SSL TTL to 3650 days

In real scenarios 365 days is short period of time. 3650 days is good
enough for long running k8s environments

Uncomment one key/value in all.yml

all.yaml shouldn't be empty otherwise ansible won't be able to merge 2
dicts.

Related bug: ansible/issues/21889

Uncommented group_vars variables

Add default var role

Rework group/role vars

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>

* Leave all.yml to keep only optional vars
* Store groups' specific vars by existing group names
* Fix optional vars casted as mandatory (add default())
* Fix missing defaults for an optional IP var
* Relink group_vars for terraform to reflect changes

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>

Add synthetic scale deployment mode

iptables switch for docker

Fix shell special vars

- Remove variable dup for Ubuntu
- Update Docker to 1.13

Docker 1.13 changes the behaviour of iptables defaults from allow
to drop. This patch disables docker's iptables management as it was
in Docker 1.12 [1]

[1] https://github.com/docker/docker/pull/28257



Signed-off-by: Sergii Golovatiuk <sgolovatiuk@mirantis.com>

Cleanup legacy syntax, spacing, files all to yml

speed up etcd preupgrade check

Update calico-cni to 1.5.6

fix typos in azure docs

fix load balancer DNS name index evaluation in openssl.conf

Update Kubernetes to v1.5.3

Signed-off-by: Sergii Golovatiuk <sgolovatiuk@mirantis.com>