Allow dependabot to keep your golang version current (#119)

Co-authored-by: Jimmi Dyson <jimmidyson@gmail.com>

Author: nathanlaceyraft

.github/dependabot.yml

@@ -31,3 +31,9 @@ updates:
           - patch
     schedule:
       interval: weekly
+
+  - package-ecosystem: "docker"
+    directories:
+      - "/"
+    schedule:
+      interval: "daily"

.github/workflows/build_pr.yml

@@ -23,6 +23,5 @@ jobs:
         run: |
           docker buildx build \
             --platform linux/arm64/v8,linux/amd64,linux/arm,linux/ppc64le,linux/s390x \
-            --build-arg GO_VERSION=$(grep -m 1 go go.mod | cut -d\  -f2) \
             -t ghcr.io/jimmidyson/configmap-reload:${{ github.event.pull_request.head.sha }} \
             .

.github/workflows/build_tag_and_main.yml

@@ -35,7 +35,6 @@ jobs:
         run: |
           docker buildx build \
             --platform linux/arm64/v8,linux/amd64,linux/arm,linux/ppc64le,linux/s390x \
-            --build-arg GO_VERSION=$(grep -m 1 go go.mod | cut -d\  -f2) \
             -t ghcr.io/jimmidyson/configmap-reload:${{ github.ref_name == 'main' && 'dev' || github.ref_name }} \
             --push \
             .

Dockerfile

@@ -2,10 +2,7 @@
 
 ARG BASEIMAGE=gcr.io/distroless/static-debian11:nonroot
 
-ARG GO_VERSION
-FROM --platform=${BUILDPLATFORM} golang:${GO_VERSION} as builder
-
-ENV GOTOOLCHAIN=auto
+FROM --platform=${BUILDPLATFORM} golang:1.24.2@sha256:1ecc479bc712a6bdb56df3e346e33edcc141f469f82840bab9f4bc2bc41bf91d AS builder
 
 COPY . /src
 WORKDIR /src

go.mod

@@ -2,7 +2,7 @@ module github.com/jimmidyson/configmap-reload
 
 go 1.21
 
-toolchain go1.23.1
+toolchain go1.24.2
 
 require (
 	github.com/fsnotify/fsnotify v1.8.0