Add sample configs

Change-Id: Id4d563f97568f7a67985ca5a67761804d89b291f

etc/layout.yaml-sample

@@ -0,0 +1,42 @@
+queues:
+  - name: check
+    manager: IndependentQueueManager
+    trigger:
+      - event: patchset-uploaded
+    success:
+      verified: 1
+    failure:
+      verified: -1
+
+  - name: post
+    manager: IndependentQueueManager
+    trigger:
+      - event: ref-updated
+        ref: ^(?!refs/).*$
+
+  - name: gate
+    manager: DependentQueueManager
+    trigger:
+      - event: comment-added
+        approval:
+          - approved: 1
+    success:
+      verified: 2
+      submit: true
+    failure:
+      verified: -2
+
+jobs:
+  - name: ^.*-merge$
+    failure-message: Unable to merge change, please rebase and try again.
+
+projects:
+  - name: example/project
+    check:
+      - project-merge:
+        - project-test
+    gate:
+      - project-merge:
+        - project-test
+    post:
+      - project-publish

etc/logging.conf-sample

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+[loggers]
+keys=root,zuul,gerrit
+
+[handlers]
+keys=console,debug,normal
+
+[formatters]
+keys=simple
+
+[logger_root]
+level=WARNING
+handlers=console
+
+[logger_zuul]
+level=DEBUG
+handlers=debug,normal
+qualname=zuul
+
+[logger_gerrit]
+level=DEBUG
+handlers=debug,normal
+qualname=gerrit
+
+[handler_console]
+level=WARNING
+class=StreamHandler
+formatter=simple
+args=(sys.stdout,)
+
+[handler_debug]
+level=DEBUG
+class=logging.handlers.TimedRotatingFileHandler
+formatter=simple
+args=('/var/log/zuul/debug.log', 'midnight', 1, 30,)
+
+[handler_normal]
+level=INFO
+class=logging.handlers.TimedRotatingFileHandler
+formatter=simple
+args=('/var/log/zuul/zuul.log', 'midnight', 1, 30,)
+
+[formatter_simple]
+format=%(asctime)s %(levelname)s %(name)s: %(message)s
+datefmt=

etc/zuul.conf-sample

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+[jenkins]
+server=https://jenkins.example.com
+user=jenkins
+apikey=1234567890abcdef1234567890abcdef
+
+[gerrit]
+server=review.example.com
+user=jenkins
+sshkey=/home/jenkins/.ssh/id_rsa
+
+[zuul]
+layout_config=/etc/zuul/layout.yaml
+log_config=/etc/zuul/logging.yaml
+pidfile=/var/run/zuul/zuul.pid