Here are some examples of running Go applications in containers and on Kubernetes. The examples range from a simple Hello World application to basic microservice with CRUD actions.
This source code is referenced by the Katacoda scenario Go Apps to Kubernetes.
The basic folder demonstrates a small Go app that obtains the current weather in London. A The Open-Meteo project offers a Weather Forecast API and provides a REST URL builder.
Given a request like this:
curl https://api.open-meteo.com/v1/forecast?latitude=51.5002&longitude=-0.1262&daily=weathercode&timezone=Europe%2FLondon
The result would be:
{
"longitude": -0.120000124,
"daily_units": {
"time": "iso8601",
"weathercode": "wmo code"
},
"latitude": 51.5,
"generationtime_ms": 0.29206275939941406,
"elevation": 13.1953125,
"daily": {
"time": [
"2022-06-01",
"2022-06-02",
"2022-06-03",
"2022-06-04",
"2022-06-05",
"2022-06-06",
"2022-06-07"
],
"weathercode": [
80,
45,
3,
3,
80,
63,
61
]
},
"utc_offset_seconds": 3600
}The demonstration app simply makes this call to discover the somewhat predictable drizzly conditions in London.