Move code to go

Dockerfile

@@ -1,15 +1,15 @@
-FROM python:3.9-rc-alpine
+FROM golang:1.17-alpine AS build
+
+WORKDIR /code
+
+COPY time.go /code
+RUN go build ./time.go
+
+FROM alpine:latest AS final
 
 MAINTAINER Yehuda Deutsch <yeh@uda.co.il>
 
-RUN apk add tzdata \
-    && apk add --virtual .build-deps gcc libc-dev make \
-    && pip install fastapi uvicorn \
-    && rm -Rf ~/.cache \
-    && apk --purge del .build-deps gcc libc-dev make
-
 WORKDIR /code
-ENV PYTHONPATH=/code
-COPY time_app/ /code/time_app/
+COPY --from=build /code/time /code/time
 
-CMD ["python", "time_app"]
+CMD ["/code/time"]

time.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"fmt"
+	"net/http"
+	"time"
+)
+
+func getTime(location string) time.Time {
+	loc, _ := time.LoadLocation("UTC")
+	return time.Now().In(loc)
+}
+
+func main() {
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprintf(w, getTime("UTC").Format("2006-01-02 15:04:05"))
+	})
+
+	http.HandleFunc("/diy", func(w http.ResponseWriter, r *http.Request) {
+		now := getTime("UTC")
+		fmt.Fprintf(w, "%s%d", string(now.Format("06")[1]), now.YearDay())
+	})
+
+	listen := ":8000"
+	fmt.Println("Listening on " + listen)
+	http.ListenAndServe(listen, nil)
+}

time_app/__init__.py

@@ -1 +0,0 @@
-

time_app/__main__.py

@@ -1,3 +0,0 @@
-from time_app.main import run
-
-run()

time_app/helpers/datetime.py

@@ -1,21 +0,0 @@
-from datetime import datetime
-from zoneinfo import ZoneInfo, available_timezones
-
-ALLOWED_TIMEZONES = available_timezones()
-DATETIME_FORMAT = '%Y-%m-%d %H:%M:%S'
-
-
-def tz_aware_now(zone: str) -> datetime:
-    """
-    :param str zone: Zone name in DB
-    :return: A timezone aware datetime object
-    :raises: ValueError When zone name is not supported
-    """
-    # ZoneInfo uses a weak cache, no need to implement a local cache
-    if zone not in ALLOWED_TIMEZONES:
-        raise ValueError(f'Unsupported timezone "{zone}"')
-    return datetime.now(tz=ZoneInfo(zone))
-
-
-def real_utc_now() -> datetime:
-    return tz_aware_now('UTC')

time_app/helpers/views.py

@@ -1,11 +0,0 @@
-from fastapi import HTTPException
-
-from .datetime import tz_aware_now
-
-
-def get_now_in_view(zone: str = 'UTC'):
-    try:
-        now = tz_aware_now(zone=zone)
-    except ValueError:
-        raise HTTPException(status_code=400, detail=f'Zone "{zone}" is unsupported')
-    return now

time_app/main.py

@@ -1,13 +0,0 @@
-import uvicorn
-from fastapi import FastAPI
-from fastapi.responses import PlainTextResponse
-
-from .views import main, api
-
-app = FastAPI()
-app.include_router(main.router, tags=['text'], default_response_class=PlainTextResponse)
-app.include_router(api.router, prefix='/api/v1', tags=['api'])
-
-
-def run():
-    uvicorn.run("time_app.main:app", host="0.0.0.0", port=8000, log_level="info")

time_app/models/main.py

@@ -1,5 +0,0 @@
-from pydantic import BaseModel
-
-
-class Now(BaseModel):
-    time: str

time_app/views/api.py

@@ -1,16 +0,0 @@
-from fastapi import APIRouter
-
-from time_app.helpers.views import get_now_in_view
-from time_app.models.main import Now
-
-router = APIRouter()
-
-
-@router.get('/now', name='Now', response_model=Now)
-def now_view(zone: str = 'UTC') -> dict:
-    return {"time": f'{get_now_in_view(zone):%Y-%m-%d %H:%M:%S}'}
-
-
-@router.get('/diy', name='Day in year', response_model=Now)
-def day_in_year_view(zone: str = 'UTC') -> dict:
-    return {"time": f'{get_now_in_view(zone):%y%j}'[-4:]}

time_app/views/main.py

@@ -1,20 +0,0 @@
-from fastapi import APIRouter
-
-from time_app.helpers.views import get_now_in_view
-
-router = APIRouter()
-
-
-@router.get('/', name='Now')
-def now_view() -> str:
-    return f'{get_now_in_view():%Y-%m-%d %H:%M:%S}'
-
-
-@router.get('/now', name='Now')
-def now_view(zone: str = 'UTC') -> str:
-    return f'{get_now_in_view(zone):%Y-%m-%d %H:%M:%S}'
-
-
-@router.get('/diy', name='Day in year')
-def day_in_year_view(zone: str = 'UTC') -> str:
-    return f'{get_now_in_view(zone):%y%j}'[-4:]