Add script to set Neo4j in offline (maintenance) mode and back online

deployment/scripts/cluster.neo4j.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+# base setup
+SCRIPT_PATH=$(realpath $0)
+SCRIPT_DIR=$(dirname $SCRIPT_PATH)
+
+# check CONFIGURATION
+if [ -z ${CONFIGURATION} ]; then
+  echo "You must provide a `CONFIGURATION` via environment variable"
+  exit 1
+fi
+
+# configuration
+KUBECONFIG=${KUBECONFIG:-${SCRIPT_DIR}/../configurations/${CONFIGURATION}/kubeconfig.yaml}
+
+case $1 in
+    offline-mode)
+        # maintenance mode on
+        ${SCRIPT_DIR}/cluster.maintenance.sh on
+
+        # set Neo4j in offline mode (maintenance)
+        kubectl --kubeconfig=${KUBECONFIG} get deployment ocelot-neo4j -o json \
+            | jq '.spec.template.spec.containers[] += {"command": ["tail", "-f", "/dev/null"]}' \
+            | kubectl --kubeconfig=${KUBECONFIG} apply -f -
+
+        # wait for the container to restart
+        sleep 60
+    ;;
+    online-mode)
+        # set Neo4j in online mode
+        kubectl --kubeconfig=${KUBECONFIG} get deployment ocelot-neo4j -o json \
+            | jq 'del(.spec.template.spec.containers[].command)' \
+            | kubectl --kubeconfig=${KUBECONFIG} apply -f -
+
+        # wait for the container to restart
+        sleep 60
+
+        # maintenance mode off
+        ${SCRIPT_DIR}/cluster.maintenance.sh off
+    ;;
+    *)
+        echo -e "Run this script with first argument either 'offline-mode' or 'online-mode'"
+        exit
+    ;;
+esac