feat:Improve log format of Ansible-based Operators

[camilamacedo86]

Description of the change:

• Print the Ansible Tasks Outputs formatted in the container logs

Motivation for the change:

• Allow users test/debug ansible operators locally by running operator-sdk up local and check the logs
• Make easier to check the logs since it provides the Ansible output as well.

Closes #2244

Local test with the scenario of #2244

$ kubectl logs deployment.apps/memcached-operator -c operator -n memcached
{"level":"info","ts":1576167898.9148664,"logger":"cmd","msg":"Go Version: go1.13.3"}
{"level":"info","ts":1576167898.9149115,"logger":"cmd","msg":"Go OS/Arch: linux/amd64"}
{"level":"info","ts":1576167898.9149296,"logger":"cmd","msg":"Version of operator-sdk: v0.13.0+git"}
{"level":"info","ts":1576167898.9149444,"logger":"cmd","msg":"Watching namespace.","Namespace":"memcached"}
{"level":"info","ts":1576167899.2269607,"logger":"controller-runtime.metrics","msg":"metrics server is starting to listen","addr":"0.0.0.0:8383"}
{"level":"info","ts":1576167899.2279701,"logger":"watches","msg":"Environment variable not set; using default value","envVar":"WORKER_MEMCACHED_CACHE_EXAMPLE_COM","default":1}
{"level":"info","ts":1576167899.228028,"logger":"watches","msg":"Environment variable not set; using default value","envVar":"ANSIBLE_VERBOSITY_MEMCACHED_CACHE_EXAMPLE_COM","default":2}
{"level":"info","ts":1576167899.228067,"logger":"ansible-controller","msg":"Watching resource","Options.Group":"cache.example.com","Options.Version":"v1alpha1","Options.Kind":"Memcached"}
{"level":"info","ts":1576167899.2283535,"logger":"leader","msg":"Trying to become the leader."}
{"level":"info","ts":1576167899.5672975,"logger":"leader","msg":"No pre-existing lock was found."}
{"level":"info","ts":1576167899.570518,"logger":"leader","msg":"Became the leader."}
{"level":"info","ts":1576167900.1903841,"logger":"metrics","msg":"Metrics Service object created","Service.Name":"memcached-operator-metrics","Service.Namespace":"memcached"}
{"level":"info","ts":1576167900.1940093,"logger":"proxy","msg":"Starting to serve","Address":"127.0.0.1:8888"}
{"level":"info","ts":1576167900.1948476,"logger":"controller-runtime.controller","msg":"Starting EventSource","controller":"memcached-controller","source":"kind source: cache.example.com/v1alpha1, Kind=Memcached"}
{"level":"info","ts":1576167900.1945882,"logger":"controller-runtime.manager","msg":"starting metrics server","path":"/metrics"}
{"level":"info","ts":1576167900.1953237,"logger":"controller-runtime.controller","msg":"Starting Controller","controller":"memcached-controller"}
{"level":"info","ts":1576167900.2963946,"logger":"controller-runtime.controller","msg":"Starting workers","controller":"memcached-controller","worker count":1}
{"level":"info","ts":1576167903.265739,"logger":"logging_event_handler","msg":"[playbook task]","name":"example-memcached","namespace":"memcached","gvk":"cache.example.com/v1alpha1, Kind=Memcached","event_type":"playbook_on_task_start","job":"6129484611666145821","EventData.Name":"Gathering Facts"}

--------------------------- Ansible Task StdOut -------------------------------

TASK [Gathering Facts] *********************************************************

-------------------------------------------------------------------------------
{"level":"info","ts":1576167904.6526327,"logger":"logging_event_handler","msg":"[playbook task]","name":"example-memcached","namespace":"memcached","gvk":"cache.example.com/v1alpha1, Kind=Memcached","event_type":"playbook_on_task_start","job":"6129484611666145821","EventData.Name":"Memcached : start memcached"}

--------------------------- Ansible Task StdOut -------------------------------

TASK [Memcached : start memcached] *********************************************
task path: /opt/ansible/roles/Memcached/tasks/main.yml:3

-------------------------------------------------------------------------------
{"level":"info","ts":1576167906.8293905,"logger":"proxy","msg":"Cache miss: apps/v1, Kind=Deployment, memcached/example-memcached-memcached"}
{"level":"info","ts":1576167906.8375957,"logger":"proxy","msg":"Injecting owner reference"}
{"level":"info","ts":1576167906.8379967,"logger":"proxy","msg":"Watching child resource","kind":"apps/v1, Kind=Deployment","enqueue_kind":"cache.example.com/v1alpha1, Kind=Memcached"}
{"level":"info","ts":1576167906.8381782,"logger":"controller-runtime.controller","msg":"Starting EventSource","controller":"memcached-controller","source":"kind source: apps/v1, Kind=Deployment"}
{"level":"info","ts":1576167907.0845776,"logger":"logging_event_handler","msg":"[playbook debug]","name":"example-memcached","namespace":"memcached","gvk":"cache.example.com/v1alpha1, Kind=Memcached","event_type":"runner_on_ok","job":"6129484611666145821","EventData.TaskArgs":""}

--------------------------- Ansible Task StdOut -------------------------------

 TASK [test ansible operator debug] ******************************** 
ok: [localhost] => {
    "msg": "test!"
}

-------------------------------------------------------------------------------
{"level":"info","ts":1576167907.2947147,"logger":"runner","msg":"Ansible-runner exited successfully","job":"6129484611666145821","name":"example-memcached","namespace":"memcached"}

[jmrodri]

/lgtm

[openshift-ci-robot]

New changes are detected. LGTM label has been removed.

[fabianvf]

awesome!