Add Renovate configuration

Dockerfile

@@ -1,23 +1,20 @@
-ARG \
-  ALPINE_IMAGE=docker.io/library/alpine:3.24.1 \
-  GOLANG_IMAGE=docker.io/library/golang:1.26.4-alpine3.24 \
-  VERSION=1.9.1 \
-  HASH=34bd82d47e981940751619c9cc44c095bb90bfcaf8d71865cbb822c37690a764
+ARG ALPINE_IMAGE=docker.io/library/alpine:3.24.1
+ARG GOLANG_IMAGE=docker.io/library/golang:1.26.4-alpine3.24
+# renovate: datasource=github-tags depName=containernetworking/plugins
+ARG VERSION=1.9.1 REVISION=adc3e6b5b581638afbd194cf2e9319ecbb0151a1
+
 
 FROM --platform=$BUILDPLATFORM $GOLANG_IMAGE AS sources
+RUN apk add --no-cache git
 ENV GOTOOLCHAIN=local GOTELEMETRY=off
 WORKDIR /go/src/containernetworking-plugins
-ARG VERSION HASH
-RUN --mount=type=tmpfs,target=/tmp \
-  set -euo pipefail \
-  && wget -qO /tmp/sources.tar.gz https://github.com/containernetworking/plugins/archive/refs/tags/v$VERSION.tar.gz \
-  && { echo $HASH /tmp/sources.tar.gz | sha256sum -c -; } || { sha256sum /tmp/sources.tar.gz; exit 1; } \
-  && tar xf /tmp/sources.tar.gz --strip-components=1
+ARG REVISION
+RUN git -c advice.detachedHead=false clone --revision $REVISION --depth=1 https://github.com/containernetworking/plugins.git .
 
 
 FROM sources AS bins
-ARG TARGETARCH SOURCE_DATE_EPOCH
-RUN --mount=type=cache,id=calico-gocache-$TARGETARCH,target=/root/.cache/go-build \
+ARG TARGETARCH SOURCE_DATE_EPOCH VERSION
+RUN --mount=type=cache,id=containernetworking-plugins-gocache-$TARGETARCH,target=/root/.cache/go-build \
   --network=none \
   CGO_ENABLED=0 GOARCH=$TARGETARCH ./build_linux.sh -trimpath -buildvcs=false \
     -ldflags "-s -w -extldflags -static -X github.com/containernetworking/plugins/pkg/utils/buildversion.BuildVersion=v$VERSION"
@@ -37,7 +34,6 @@ FROM scratch
 LABEL org.opencontainers.image.licenses="Apache-2.0" \
       org.opencontainers.image.source="https://github.com/k0sproject/cni-node"
 COPY --from=baselayout / /
-ARG VERSION
 COPY --from=bins /go/src/containernetworking-plugins/bin/ /opt/cni/bin/
 ENTRYPOINT ["/bin/cni-node"]
 CMD ["install"]

renovate.json

@@ -0,0 +1,63 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:recommended",
+    "docker:pinDigests",
+    ":configMigration",
+    ":gitSignOff",
+    ":semanticCommitsDisabled"
+  ],
+  "gitAuthor": "k0s-bot <110385897+k0s-bot@users.noreply.github.com>",
+  "labels": [
+    "dependencies"
+  ],
+  "prTitleStrict": true,
+  "commitMessageAction": "Bump",
+  "commitMessageTopic": "{{depName}}",
+  "groupSingleUpdates": false,
+  "vulnerabilityAlerts": {
+    "enabled": false
+  },
+  "enabledManagers": [
+    "github-actions",
+    "dockerfile",
+    "custom.regex"
+  ],
+  "packageRules": [
+    {
+      "description": "No digest-only bumps",
+      "matchUpdateTypes": [
+        "digest"
+      ],
+      "enabled": false
+    },
+    {
+      "description": "Bump the Alpine-based Go image, including the -alpineX.Y suffix",
+      "matchManagers": [
+        "dockerfile"
+      ],
+      "matchPackageNames": [
+        "docker.io/library/golang"
+      ],
+      "versioning": "regex:^(?<major>\\d+)\\.(?<minor>\\d+)\\.(?<patch>\\d+)-alpine(?<build>\\d+)\\.(?<revision>\\d+)$"
+    }
+  ],
+  "customManagers": [
+    {
+      "customType": "regex",
+      "description": "Generic version bumps based on comments",
+      "managerFilePatterns": [
+        "**/Dockerfile*",
+        "**/*.yaml",
+        "**/*.yml"
+      ],
+      "matchStrings": [
+        "# renovate: datasource=(?<datasource>\\S+)( registryUrl=(?<registryUrl>.+))? depName=(?<depName>\\S+)( versioning=(?<versioning>.+))?\\n[^:=\\n]+[:=][ \\t]*[\"']?(?<currentValue>[^@\\s\"']+)(?:(@|[^:=\\n]+[:=][ \\t]*[\"']?)(?<currentDigest>[0-9a-f]{7,}))?[\"']?[ \\t]*(?:#|\\n)",
+        "[=:][ \\t]*[\"']?(?<currentValue>\\S+?)[\"']?[ \\t]*# renovate: datasource=(?<datasource>\\S+)( registryUrl=(?<registryUrl>.+))? depName=(?<depName>\\S+)( versioning=(?<versioning>.+))?\\n"
+      ],
+      "datasourceTemplate": "{{{datasource}}}",
+      "versioningTemplate": "{{#if versioning}}{{{versioning}}}{{else}}semver{{/if}}",
+      "extractVersionTemplate": "^v?(?<version>.+)"
+    }
+  ]
+}