Update golang Docker tag to v1.21

Configure Renovate

.github/workflows/release.yml

@@ -69,7 +69,7 @@ jobs:
         id: buildx
         uses: docker/setup-buildx-action@master
 
-      - name: Login to DockerHub
+      - name: Login to quay.io
         if: github.event_name != 'pull_request'
         uses: docker/login-action@v2
         with:

.github/workflows/test.yml

@@ -18,7 +18,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: earthly/actions-setup@v1.0.7
+      - uses: earthly/actions-setup@v1.0.8
       - name: Checkout code
         uses: actions/checkout@v3
         with:

Dockerfile

@@ -1,4 +1,4 @@
-ARG GO_VERSION=1.20-alpine3.18
+ARG GO_VERSION=1.21-alpine3.18
 FROM golang:$GO_VERSION AS builder
 
 WORKDIR /build

README.md

@@ -1,5 +1,7 @@
-This is enki
+`enki` is the tool used to generate Kairos artifacts (container images, isos etc) and it is used
+by [`Auroraboot`](https://kairos.io/docs/reference/auroraboot/) and [osbuilder](https://github.com/kairos-io/osbuilder/)
+
+It's not meant to be used by humans, thus the API and UX are not focusing on user friendliness but
+rather on getting things done and fulfilling the requirements of the dependant tools.
 
 NOTE: `enki` was originally part of [osbuilder](https://github.com/kairos-io/osbuilder/) and [was moved to a separate repository](link to PR here).
-
-TODO: Add more information about enki

renovate.json

@@ -0,0 +1,29 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:base"
+  ],
+  "schedule": [
+    "after 11pm every weekday",
+    "before 7am every weekday",
+    "every weekend"
+  ],
+  "timezone": "Europe/Brussels",
+  "packageRules": [
+    {
+      "matchUpdateTypes": ["patch"],
+      "automerge": true
+    }
+  ],
+  "regexManagers": [
+    {
+      "fileMatch": [
+        "^Earthfile$"
+      ],
+      "matchStrings": [
+        "#\\s*renovate:\\s*datasource=(?<datasource>.*?) depName=(?<depName>.*?)( versioning=(?<versioning>.*?))?\\sARG\\s+.+_VERSION=\"?(?<currentValue>.*?)\"?\\s"
+      ],
+      "versioningTemplate": "{{#if versioning}}{{versioning}}{{else}}semver{{/if}}"
+    }
+  ]
+}