Optimize Dokerfile

.github/workflows/github-push-docker.yml

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+name: Create and publish a Docker image
+
+on:
+  push:
+    branches: ['main']
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile

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+FROM python:3.11.1-alpine3.17
+
+LABEL Maintainer="serega404"
+
+WORKDIR /app
+
+COPY ./requirements.txt requirements.txt
+RUN pip3 install -r requirements.txt
+
+COPY crontab /etc/cron.d/crontab
+RUN chmod 0644 /etc/cron.d/crontab
+
+COPY main.py main.py
+
+RUN /usr/bin/crontab /etc/cron.d/crontab
+
+# run crond as main process of container
+CMD ["/usr/sbin/crond", "-f"]

README.md

@@ -20,6 +20,19 @@
 
 <img src="./grafana.png" width="400" height="300" />
 
+### Запуск в Docker
+
+``` Docker
+docker run -d --name MetricAliexpressExchangeRate \
+    --restart=always \
+    -e METRIC_SERVER_URL='http(s)://<IP_ADDR>:<PORT>/' \
+    ghcr.io/serega404/metricaliexpressexchangerate:main
+```
+
+#### Дополнительные переменные среды:
+* `CBRF_APISITE_URL`
+* `ALI1USD_PAGE_URL`
+
 ### Библиотеки
 
 * [BeautifulSoup](https://www.crummy.com/software/BeautifulSoup/)

crontab

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+*/10 * * * * python3 /app/main.py >> /tmp/out.log

main.py

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-import requests, re, json
+import requests, re, json, os
 from bs4 import BeautifulSoup
 
 # Config
 
-Ali1USDPageURL = 'https://aliexpress.ru/item/32892046259.html'
+Ali1USDPageURL = os.environ.get('ALI1USD_PAGE_URL', 'https://aliexpress.ru/item/32892046259.html')
-CBRFApiSiteURL = 'https://www.cbr-xml-daily.ru/daily_json.js'
+CBRFApiSiteURL = os.environ.get('CBRF_APISITE_URL', 'https://www.cbr-xml-daily.ru/daily_json.js')
-MetricServerURL = 'http://192.168.0.100:8428/'
+MetricServerURL = os.environ.get('METRIC_SERVER_URL', 'http://192.168.0.100:8428/')
 
 KursAli = ""
 KursCBRF = ""

requirements.txt

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+requests
+beautifulsoup4