build: Add missing Docker build files

build: Add Docker healthcheck
Implements #23

Dockerfile

@@ -0,0 +1,28 @@
+# Build Docker image for Amd64
+FROM node:19-bullseye-slim
+
+# Add metadata about the image
+LABEL maintainer="Göran Sander mountaindude@ptarmiganlabs.com"
+LABEL description="Extract data lineage, load scripts and data connections from Qlik Sense."
+
+# Create app dir inside container
+WORKDIR /nodeapp
+
+# Install app dependencies separately (creating a separate layer for node_modules, effectively caching them between image rebuilds)
+COPY package.json .
+RUN npm install
+
+# Copy app's source files
+COPY . .
+
+# Create and use non-root user 
+RUN groupadd -r nodejs \
+   && useradd -m -r -g nodejs nodejs
+
+USER nodejs
+
+# Set up Docker healthcheck
+HEALTHCHECK --interval=12s --timeout=12s --start-period=30s CMD ["node", "docker-healthcheck.js"]
+
+CMD ["node", "butler-spyglass.js"]
+

changelog.md

@@ -1,5 +1,18 @@
 # Changelog
 
+## [2.0.2](https://github.com/ptarmiganlabs/butler-spyglass/compare/butler-spyglass-v2.0.1...butler-spyglass-v2.0.2) (2023-03-12)
+
+
+### Documentation
+
+* Add status badge to readme file ([f060f9a](https://github.com/ptarmiganlabs/butler-spyglass/commit/f060f9a4a71a8e6be4eec67fcaef9c8b39ea1337))
+* Re-written most of docs wrt 2.x release ([1d7cb6d](https://github.com/ptarmiganlabs/butler-spyglass/commit/1d7cb6d353c6fc8ebc7a47d05c0e63080a094ef3))
+
+
+### Build pipeline
+
+* Disable MQTT messages from Docker build workflow ([f6b1712](https://github.com/ptarmiganlabs/butler-spyglass/commit/f6b17123b08e1566c20c2149add37fa2fe4954a8))
+
 ## [2.0.1](https://github.com/ptarmiganlabs/butler-spyglass/compare/butler-spyglass-v2.0.0...butler-spyglass-v2.0.1) (2023-03-10)
 
 

docker-healthcheck.js

@@ -0,0 +1,27 @@
+/* eslint-disable no-console */
+// Set up REST endpoint for Docker healthchecks
+const httpHealth = require('http');
+
+const optionsHealth = {
+    host: 'localhost',
+    port: '12398',
+    path: '/health',
+    timeout: 2000,
+};
+
+const requestHealth = httpHealth.request(optionsHealth, (res) => {
+    console.log(`STATUS Docker health: ${res.statusCode}`);
+    if (res.statusCode === 200) {
+        process.exit(0);
+    } else {
+        process.exit(1);
+    }
+});
+
+requestHealth.on('error', (err) => {
+    console.log('ERROR Docker health:');
+    console.log(err);
+    process.exit(1);
+});
+
+requestHealth.end();