Add Renovate for dependency management (#123)

.github/dependabot.yaml

@@ -1,8 +0,0 @@
----
-version: 2
-updates:
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: daily
-      time: "06:00"

.github/renovate.json

@@ -0,0 +1,79 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "rebaseWhen": "behind-base-branch",
+  "dependencyDashboard": true,
+  "labels": ["dependencies", "no-stale"],
+  "commitMessagePrefix": "⬆️",
+  "commitMessageTopic": "{{depName}}",
+  "regexManagers": [
+    {
+      "fileMatch": ["/Dockerfile$", "/build.yaml$"],
+      "matchStringsStrategy": "any",
+      "matchStrings": [
+        "ARG BUILD_FROM=(?<depName>.*?):(?<currentValue>.*?)\\s+",
+        "(aarch64|amd64|armhf|armv7|i386):\\s[\"']?(?<depName>.*?):(?<currentValue>.*?)[\"']?\\s"
+      ],
+      "datasourceTemplate": "docker"
+    },
+    {
+      "fileMatch": ["/Dockerfile$"],
+      "matchStringsStrategy": "any",
+      "matchStrings": [
+        "\\s\\s(?<package>[a-z0-9][a-z0-9-_]+)=(?<currentValue>[a-z0-9-_.]+)\\s+"
+      ],
+      "versioningTemplate": "loose",
+      "datasourceTemplate": "repology",
+      "depNameTemplate": "alpine_3_17/{{package}}"
+    },
+    {
+      "fileMatch": ["/Dockerfile$"],
+      "matchStrings": [
+        "ARG PYTHON_VERSION=[\"']?(?<currentValue>.+?)[\"']?\\s+"
+      ],
+      "datasourceTemplate": "github-tags",
+      "depNameTemplate": "python/cpython"
+    },
+    {
+      "fileMatch": ["/Dockerfile$"],
+      "matchStrings": [
+        "ARG PYTHON_SETUPTOOLS_VERSION=[\"']?(?<currentValue>.+?)[\"']?\\s+"
+      ],
+      "datasourceTemplate": "pypi",
+      "depNameTemplate": "setuptools"
+    },
+    {
+      "fileMatch": ["/Dockerfile$"],
+      "matchStrings": [
+        "ARG PYTHON_PIP_VERSION=[\"']?(?<currentValue>.+?)[\"']?\\s+"
+      ],
+      "datasourceTemplate": "pypi",
+      "depNameTemplate": "pip"
+    }
+  ],
+  "packageRules": [
+    {
+      "matchDatasources": ["repology"],
+      "automerge": true
+    },
+    {
+      "groupName": "Add-on base image",
+      "matchDatasources": ["docker"]
+    },
+    {
+      "groupName": "Add-on base image",
+      "matchDatasources": ["docker"],
+      "matchUpdateTypes": ["minor", "patch"],
+      "automerge": true
+    },
+    {
+      "matchDatasources": ["github-tags"],
+      "matchUpdateTypes": ["patch"],
+      "automerge": true
+    },
+    {
+      "matchDatasources": ["pypi"],
+      "matchUpdateTypes": ["minor", "patch"],
+      "automerge": true
+    }
+  ]
+}

base/Dockerfile

@@ -6,15 +6,15 @@ FROM ${BUILD_FROM}
 ENV \
     PATH="/usr/local/bin:$PATH" \
     GPG_KEY="CFDCA245B1043CF2A5F97865FFE87404168BD847" \
-    PYTHON_VERSION="3.10.7" \
-    PYTHON_PIP_VERSION="22.2.2" \
-    PYTHON_SETUPTOOLS_VERSION="65.3.0"
 
 # Set shell
 SHELL ["/bin/bash", "-o", "pipefail", "-c"]
 
 # Install base system
 # hadolint ignore=DL3003,SC2155
+ARG PYTHON_VERSION="3.10.7"
+ARG PYTHON_PIP_VERSION="22.2.2"
+ARG PYTHON_SETUPTOOLS_VERSION="65.3.0"
 RUN \
     apk add --no-cache --virtual .build-dependencies \
         bzip2-dev=1.0.8-r1 \