Add Mount trait example

examples/traits/mount/Consumer.java

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import org.apache.camel.builder.RouteBuilder;
+
+public class Consumer extends RouteBuilder {
+    @Override
+    public void configure() throws Exception {
+        from("file:/tmp/log/example.log")
+            .filter(simple("${exchangeProperty.CamelTimerCounter} == 10"));
+    }
+}

examples/traits/mount/Producer.java

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import org.apache.camel.builder.RouteBuilder;
+
+public class Producer extends RouteBuilder {
+    @Override
+    public void configure() throws Exception {
+        from("timer:tick")
+            .setBody()
+              .simple("Hello Camel K! #${exchangeProperty.CamelTimerCounter}")
+            .log(""${body}"");
+    }
+}

examples/traits/mount/README.md

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+# Camel K Mount Trait
+
+
+In this section you will find examples about fine tuning your `Integration` using **Mount** `trait` capability.
+
+
+**Example 1: Mount Persistent Volume Claim on the Integration Pod in a Kubernetes platform (Static Volume Provisioning)**
+
+Requirement: Persistent Volume already created.
+
+Create the Pod and the Persistent Volume Claim:
+`kubectl apply -f pod-example.yaml`
+`kubectl apply -f pvc-example.yaml`
+
+Enable the Mount trait in the integrations, mount the Persistent Volume Claim in the Pod, and log to an external volume:
+`kamel run --trait mount.enabled=true --trait mount.volumes=["pvc-example:/tmp/log"] Producer.java -p quarkus.log.file.path=/tmp/log/example.log -p quarkus.log.file.enable=true`
+`kamel run --trait mount.enabled=true --trait mount.volumes=["pvc-example:/tmp/log"] Consumer.java`

examples/traits/mount/pod-example.yaml

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+apiVersion: v1
+kind: Pod
+metadata:
+  name: pod-example
+spec:
+  containers:
+    - name: nginx
+      image: nginx:1.14.2
+      volumeMounts:
+        - mountPath: /tmp/log
+          name: vm-example

examples/traits/mount/pvc-example.yaml

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+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: pvc-example
+spec:
+  storageClassName: manual
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi