chg: rename and simplify docker file

Signed-off-by: Steve Arnold <[email protected]>

Dockerfile

@@ -0,0 +1,16 @@
+FROM python:3.9-alpine3.16
+
+RUN apk --no-cache add git bash
+
+ADD entrypoint.sh /
+ADD token_getter.py /
+
+RUN pip install --no-cache-dir \
+    cryptography==42.0.5 \
+    github3.py==4.0.1 \
+    jwcrypto==1.5.6 \
+    pyjwt==2.8.0
+
+RUN chmod u+x /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]

entrypoint.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#! /usr/bin/env bash
 
 echo $INPUT_APP_PEM | base64 -d > pem.txt
-python /app/token_getter.py
+python token_getter.py