[HEALTHCHECK] Enhance healthcheck logging

    Add a timestamp to every log entry
    Make a log entry when the application starts
    Make a single log entry (instead of 2) for the outbound HTTP requests to the k8s API
    Update node.js base image to the 16.x.x LTS release (from 14.x.x).

Issue-ID: DCAEGEN2-2958
Issue-ID: DCAEGEN2-2983
Signed-off-by: Jack Lucas <jflos@sonoris.net>
Change-Id: Ib275afbd0c871d4e82dda269606d243f3b6d89e4

1 files changed, 26 insertions, 0 deletions

diff --git a/healthcheck-container/log.js b/healthcheck-container/log.js
new file mode 100644
index 0000000..655ac6b
--- /dev/null
+++ b/healthcheck-container/log.js
@@ -0,0 +1,26 @@
+/*
+Copyright(c) 2021 J. F. Lucas.  All rights reserved.
+
+Licensed 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.
+*/
+exports.info = (message) => {
+    console.log(`${(new Date()).toISOString()}: ${message}`);
+}
+
+exports.error = (message) => {
+    console.error(`${(new Date()).toISOString()}: ${message}`);
+}
+
+exports.debug = (message) => {
+    console.debug(`${(new Date()).toISOString()}: ${message}`);
+}