Add script to update example manifests

Fixes #260.

hack/testdata/cass-cluster-test.template.yaml

@@ -11,7 +11,7 @@ spec:
   - name: "ringnodes"
     replicas: ${CASS_REPLICAS}
     datacenter: "${CASS_NAME}-datacenter"
-    rack: "{CASS_NAME}-rack"
+    rack: "${CASS_NAME}-rack"
     persistence:
       enabled: true
       size: "5Gi"

hack/update-examples.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+SCRIPT_ROOT=$(dirname ${BASH_SOURCE})/..
+
+CASS_TEMPLATE="${SCRIPT_ROOT}/hack/testdata/cass-cluster-test.template.yaml"
+ES_TEMPLATE="${SCRIPT_ROOT}/hack/testdata/es-cluster-test.template.yaml"
+
+EXAMPLES_DIR="${SCRIPT_ROOT}/docs/quick-start/"
+CASS_EXAMPLE="${EXAMPLES_DIR}/cassandra-cluster.yaml"
+ES_EXAMPLE="${EXAMPLES_DIR}/es-cluster-demo.yaml"
+
+export NAVIGATOR_IMAGE_REPOSITORY="jetstackexperimental"
+export NAVIGATOR_IMAGE_TAG="canary"
+export NAVIGATOR_IMAGE_PULLPOLICY="IfNotPresent"
+
+export CASS_NAME="demo"
+export CASS_REPLICAS=3
+export CASS_CQL_PORT=9042
+export CASS_VERSION="3.11.1"
+
+envsubst < ${CASS_TEMPLATE} > ${CASS_EXAMPLE}