Remove trailing whitespaces

README.md

@@ -12,7 +12,7 @@ use the latest and greatest features, current guidelines and best practices,
 and to refresh command syntax, output, changed prerequisites, as needed.
 
 |Name | Description | Notable Features Used | Complexity Level|
-------------- | ------------- | ------------ | ------------ | 
+------------- | ------------- | ------------ | ------------ |
 |[Guestbook](guestbook/) | PHP app with Redis | Deployment, Service | Beginner |
 |[WordPress](mysql-wordpress-pd/) | WordPress with MySQL | Deployment, Persistent Volume with Claim | Beginner|
 |[Cassandra](cassandra/) | Cloud Native Cassandra | Daemon Set, Stateful Set, Replication Controller | Intermediate

cassandra/cassandra-statefulset.yaml

@@ -43,7 +43,7 @@ spec:
         lifecycle:
           preStop:
             exec:
-              command: 
+              command:
               - /bin/sh
               - -c
               - nodetool drain

cassandra/image/files/build.sh

@@ -56,7 +56,7 @@ else
 fi
 
 mv /kubernetes-cassandra.jar /usr/local/apache-cassandra-${CASSANDRA_VERSION}/lib
-mv /cassandra-seed.so /etc/cassandra/ 
+mv /cassandra-seed.so /etc/cassandra/
 mv /cassandra-seed.h /usr/local/lib/include
 
 apt-get -y purge localepurge

cassandra/image/files/cassandra.yaml

@@ -306,7 +306,7 @@ counter_cache_save_period: 7200
 saved_caches_directory: /cassandra_data/saved_caches
 
 # commitlog_sync may be either "periodic" or "batch."
-# 
+#
 # When in batch mode, Cassandra won't ack writes until the commit log
 # has been fsynced to disk.  It will wait
 # commitlog_sync_batch_window_in_ms milliseconds between fsyncs.
@@ -980,9 +980,9 @@ transparent_data_encryption_options:
     key_alias: testing:1
     # CBC IV length for AES needs to be 16 bytes (which is also the default size)
     # iv_length: 16
-    key_provider: 
+    key_provider:
       - class_name: org.apache.cassandra.security.JKSKeyProvider
-        parameters: 
+        parameters:
           - keystore: conf/.keystore
             keystore_password: cassandra
             store_type: JCEKS

cassandra/java/pom.xml

@@ -22,7 +22,7 @@
         <plugins>
             <plugin>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.5.1</version> 
+                <version>3.5.1</version>
                 <configuration>
                     <source>1.8</source>
                     <target>1.8</target>

cassandra/java/src/main/java/io/k8s/cassandra/KubernetesSeedProvider.java

@@ -49,15 +49,15 @@ public class KubernetesSeedProvider implements SeedProvider {
 
 	/**
 	 * Create new seed provider
-	 * 
+	 *
 	 * @param params
 	 */
 	public KubernetesSeedProvider(Map<String, String> params) {
 	}
 
 	/**
 	 * Call Kubernetes API to collect a list of seed providers
-	 * 
+	 *
 	 * @return list of seed providers
 	 */
 	public List<InetAddress> getSeeds() {

cassandra/java/src/test/resources/cassandra.yaml

@@ -35,7 +35,7 @@ data_file_directories:
     - target/cassandra/data
 disk_access_mode: mmap
 seed_provider:
-    - class_name: io.k8s.cassandra.KubernetesSeedProvider 
+    - class_name: io.k8s.cassandra.KubernetesSeedProvider
       parameters:
           - seeds: "8.4.4.4,8.8.8.8"
 endpoint_snitch: org.apache.cassandra.locator.SimpleSnitch

guestbook-go/README.md

@@ -59,7 +59,7 @@ Use the `examples/guestbook-go/redis-master-controller.json` file to create a [r
 
     ```console
     me@workstation$ gcloud compute ssh --zone us-central1-b kubernetes-node-bz1p
-    
+
     me@kubernetes-node-3:~$ sudo docker ps
     CONTAINER ID        IMAGE     COMMAND                  CREATED             STATUS
     d5c458dabe50        redis     "/entrypoint.sh redis"   5 minutes ago       Up 5 minutes
@@ -195,7 +195,7 @@ This is a simple Go `net/http` ([negroni](https://github.com/codegangsta/negroni
     redis-master-xx4uv             1/1       Running   0          23m
     redis-slave-b6wj4              1/1       Running   0          6m
     redis-slave-iai40              1/1       Running   0          6m
-    ... 
+    ...
     ```
 
     Result: You see a single Redis master, two Redis slaves, and three guestbook pods.

guestbook/frontend-service.yaml

@@ -7,7 +7,7 @@ metadata:
     tier: frontend
 spec:
   # comment or delete the following line if you want to use a LoadBalancer
-  type: NodePort 
+  type: NodePort
   # if your cluster supports it, uncomment the following to automatically create
   # an external load-balanced IP for the frontend service.
   # type: LoadBalancer

staging/cockroachdb/demo.sh

@@ -32,7 +32,7 @@ function kill() {
 # Create database on second node (idempotently for convenience).
 cat <<EOF | sql 1
 CREATE DATABASE IF NOT EXISTS foo;
-CREATE TABLE IF NOT EXISTS foo.bar (k STRING PRIMARY KEY, v STRING); 
+CREATE TABLE IF NOT EXISTS foo.bar (k STRING PRIMARY KEY, v STRING);
 UPSERT INTO foo.bar VALUES ('Kuber', 'netes'), ('Cockroach', 'DB');
 EOF
 

staging/javaee/mysql-pod.yaml

@@ -6,23 +6,23 @@ metadata:
     name: mysql-pod
     context: docker-k8s-lab
 spec:
-  containers: 
-    - 
+  containers:
+    -
       name: mysql
       image: mysql:latest
-      env: 
-        - 
+      env:
+        -
           name: "MYSQL_USER"
           value: "mysql"
-        - 
+        -
           name: "MYSQL_PASSWORD"
           value: "mysql"
-        - 
+        -
           name: "MYSQL_DATABASE"
           value: "sample"
-        - 
+        -
           name: "MYSQL_ROOT_PASSWORD"
           value: "supersecret"
-      ports: 
-        - 
+      ports:
+        -
           containerPort: 3306

staging/javaee/mysql-service.yaml

@@ -1,15 +1,15 @@
 apiVersion: v1
 kind: Service
-metadata: 
+metadata:
   name: mysql-service
-  labels: 
+  labels:
     name: mysql-pod
     context: docker-k8s-lab
-spec: 
+spec:
   ports:
     # the port that this service should serve on
     - port: 3306
   # label keys and values that must match in order to receive traffic for this service
-  selector: 
+  selector:
     name: mysql-pod
     context: docker-k8s-lab

staging/javaweb-tomcat-sidecar/javaweb-2.yaml

@@ -19,7 +19,7 @@ spec:
       name: app-volume
     ports:
     - containerPort: 8080
-      hostPort: 8001 
+      hostPort: 8001
   volumes:
   - name: app-volume
     emptyDir: {}

staging/openshift-origin/create.sh

@@ -82,7 +82,7 @@ export PUBLIC_OPENSHIFT_IP=""
 echo "===> Waiting for public IP to be set for the OpenShift Service."
 echo "Mistakes in service setup can cause this to loop infinitely if an"
 echo "external IP is never set. Ensure that the OpenShift service"
-echo "is set to use an external load balancer. This process may take" 
+echo "is set to use an external load balancer. This process may take"
 echo "a few minutes. Errors can be found in the log file found at:"
 echo ${OPENSHIFT_EXAMPLE}/openshift-startup.log
 echo "" > ${OPENSHIFT_EXAMPLE}/openshift-startup.log

staging/persistent-volume-provisioning/quobyte/example-pod.yaml

@@ -13,7 +13,7 @@ spec:
     spec:
       containers:
       - name: server
-        image: nginx 
+        image: nginx
         volumeMounts:
           - mountPath: /var/lib/www/html
             name: quobytepvc

staging/persistent-volume-provisioning/rbd/ceph-secret-user.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 kind: Secret
 metadata:
   name: ceph-secret-user
-type: "kubernetes.io/rbd"  
+type: "kubernetes.io/rbd"
 data:
 #Please note this value is base64 encoded.
   key: QVFBTWdYaFZ3QkNlRGhBQTlubFBhRnlmVVNhdEdENGRyRldEdlE9PQ==

staging/podsecuritypolicy/rbac/README.md

@@ -127,7 +127,7 @@ In order to create a pod, either the creating user or the service account
 specified by the pod must be authorized to use a `PodSecurityPolicy` object
 that allows the pod, within the pod's namespace.
 
-That authorization is determined by the ability to perform the `use` verb 
+That authorization is determined by the ability to perform the `use` verb
 on a particular `podsecuritypolicies` resource, at the scope of the pod's namespace.
 The `use` verb is a special verb that grants access to use a policy while not permitting any
 other access.

staging/selenium/selenium-hub-deployment.yaml

@@ -1,7 +1,7 @@
 apiVersion: apps/v1
 kind: Deployment
 metadata:
-  name: selenium-hub 
+  name: selenium-hub
   labels:
     app: selenium-hub
 spec:
@@ -18,7 +18,7 @@ spec:
       - name: selenium-hub
         image: selenium/hub:3.11
         ports:
-          - containerPort: 4444 
+          - containerPort: 4444
         resources:
           limits:
             memory: "1000Mi"

staging/selenium/selenium-hub-svc.yaml

@@ -6,8 +6,8 @@ metadata:
     app: selenium-hub
 spec:
   ports:
-  - port: 4444 
-    targetPort: 4444 
+  - port: 4444
+    targetPort: 4444
     name: port0
   selector:
     app: selenium-hub

staging/selenium/selenium-node-chrome-deployment.yaml

@@ -1,7 +1,7 @@
 apiVersion: apps/v1
 kind: Deployment
 metadata:
-  name: selenium-node-chrome 
+  name: selenium-node-chrome
   labels:
     app: selenium-node-chrome
 spec:
@@ -18,11 +18,11 @@ spec:
       - name: selenium-node-chrome
         image: selenium/node-chrome-debug:3.11
         ports:
-          - containerPort: 5900 
+          - containerPort: 5900
         env:
-          - name: HUB_PORT_4444_TCP_ADDR 
+          - name: HUB_PORT_4444_TCP_ADDR
             value: "selenium-hub"
-          - name: HUB_PORT_4444_TCP_PORT 
+          - name: HUB_PORT_4444_TCP_PORT
             value: "4444"
         resources:
           limits:

staging/selenium/selenium-node-firefox-deployment.yaml

@@ -1,7 +1,7 @@
 apiVersion: apps/v1
 kind: Deployment
 metadata:
-  name: selenium-node-firefox 
+  name: selenium-node-firefox
   labels:
     app: selenium-node-firefox
 spec:
@@ -14,22 +14,22 @@ spec:
       labels:
         app: selenium-node-firefox
     spec:
-      volumes:                          
+      volumes:
       - name: dshm
         emptyDir:
           medium: Memory
       containers:
       - name: selenium-node-firefox
         image: selenium/node-firefox-debug:3.11
         ports:
-          - containerPort: 5900 
+          - containerPort: 5900
         volumeMounts:
           - mountPath: /dev/shm
             name: dshm
         env:
-          - name: HUB_PORT_4444_TCP_ADDR 
+          - name: HUB_PORT_4444_TCP_ADDR
             value: "selenium-hub"
-          - name: HUB_PORT_4444_TCP_PORT 
+          - name: HUB_PORT_4444_TCP_PORT
             value: "4444"
         resources:
           limits:

staging/storage/hazelcast/README.md

@@ -43,7 +43,7 @@ metadata:
   labels:
     name: hazelcast
   name: hazelcast
-spec: 
+spec:
   ports:
     - port: 5701
   selector:
@@ -74,27 +74,27 @@ Deployments will "adopt" existing pods that match their selector query, so let's
 ```yaml
 apiVersion: "apps/v1" # for k8s versions before 1.9.0 use apps/v1beta2  and before 1.8.0 use extensions/v1beta1
 kind: Deployment
-metadata: 
+metadata:
   name: hazelcast
-  labels: 
+  labels:
     name: hazelcast
 spec:
   selector:
     matchLabels:
       name: hazelcast
-  template: 
-    metadata: 
-      labels: 
+  template:
+    metadata:
+      labels:
         name: hazelcast
-    spec: 
-      containers: 
+    spec:
+      containers:
       - name: hazelcast
         image: quay.io/pires/hazelcast-kubernetes:0.8.0
         imagePullPolicy: Always
         env:
         - name: "DNS_DOMAIN"
           value: "cluster.local"
-        ports: 
+        ports:
         - name: hazelcast
           containerPort: 5701
 ```
@@ -187,7 +187,7 @@ kubectl logs -f hazelcast-4195412960-0tl3w
 2017-03-15 09:42:47.253  INFO 7 --- [cached.thread-3] c.hazelcast.nio.tcp.InitConnectionTask   : [172.17.0.6]:5701 [someGroup] [3.8] Connecting to /172.17.0.2:5701, timeout: 0, bind-any: true
 2017-03-15 09:42:47.262  INFO 7 --- [cached.thread-3] c.h.nio.tcp.TcpIpConnectionManager       : [172.17.0.6]:5701 [someGroup] [3.8] Established socket connection between /172.17.0.6:58073 and /172.17.0.2:5701
 2017-03-15 09:42:54.260  INFO 7 --- [ration.thread-0] com.hazelcast.system                     : [172.17.0.6]:5701 [someGroup] [3.8] Cluster version set to 3.8
-2017-03-15 09:42:54.262  INFO 7 --- [ration.thread-0] c.h.internal.cluster.ClusterService      : [172.17.0.6]:5701 [someGroup] [3.8] 
+2017-03-15 09:42:54.262  INFO 7 --- [ration.thread-0] c.h.internal.cluster.ClusterService      : [172.17.0.6]:5701 [someGroup] [3.8]
 
 Members [2] {
 	Member [172.17.0.2]:5701 - 170f6924-7888-442a-9875-ad4d25659a8a

staging/storage/hazelcast/hazelcast-deployment.yaml

@@ -1,19 +1,19 @@
 apiVersion: apps/v1 #  for k8s versions before 1.9.0 use apps/v1beta2  and before 1.8.0 use extensions/v1beta1
 kind: Deployment
-metadata: 
+metadata:
   name: hazelcast
-  labels: 
+  labels:
     name: hazelcast
-spec: 
+spec:
   selector:
     matchLabels:
       name: hazelcast
-  template: 
-    metadata: 
-      labels: 
+  template:
+    metadata:
+      labels:
         name: hazelcast
-    spec: 
-      containers: 
+    spec:
+      containers:
       - name: hazelcast
         image: quay.io/pires/hazelcast-kubernetes:3.8_1
         imagePullPolicy: Always
@@ -24,6 +24,6 @@ spec:
           valueFrom:
             fieldRef:
               fieldPath: metadata.namespace
-        ports: 
+        ports:
         - name: hazelcast
           containerPort: 5701