add default config and gitignore

internet-speed-logger/.gitignore

@@ -0,0 +1,64 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# TypeScript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+# next.js build output
+.next
+
+# Persistent volume for mongodb
+mongo-persistence

internet-speed-logger/config/default.json

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+{
+  "webserver": {
+    "listenPort": 3000,
+    "listenHost": "0.0.0.0"
+  },
+  "db": {
+    "connectionString": "mongodb://speedtest:speedtest@mongo:27017/speedtest",
+    "collection": "speedtest"
+  },
+  "speedtest": {
+    "commandString": "bin/speedtest -f json --accept-license --accept-gdpr",
+    "intervalSec": 2700
+  }
+}