dockerfile: mod-outdated target to check modules updates

Signed-off-by: CrazyMax <[email protected]>

Author: crazy-max

Makefile

@@ -91,4 +91,8 @@ doctoc:
 
 .PHONY: docs
 docs:
-	$(BUILDX_CMD) bake docs
+	$(BUILDX_CMD) bake docs
+
+.PHONY: mod-outdated
+mod-outdated:
+	$(BUILDX_CMD) bake mod-outdated

docker-bake.hcl

@@ -167,3 +167,11 @@ target "docs" {
   target = "update"
   output = ["./docs"]
 }
+
+target "mod-outdated" {
+  inherits = ["_common"]
+  dockerfile = "./hack/dockerfiles/vendor.Dockerfile"
+  target = "outdated"
+  no-cache-filter = ["outdated"]
+  output = ["type=cacheonly"]
+}

hack/dockerfiles/vendor.Dockerfile

@@ -1,6 +1,7 @@
 # syntax=docker/dockerfile-upstream:master
 
 ARG GO_VERSION=1.20
+ARG MODOUTDATED_VERSION=v0.9.0
 
 FROM golang:${GO_VERSION}-alpine AS base
 RUN apk add --no-cache git rsync
@@ -35,3 +36,10 @@ RUN --mount=target=/context \
     exit 1
   fi
 EOT
+
+FROM psampaz/go-mod-outdated:${MODOUTDATED_VERSION} AS go-mod-outdated
+FROM base AS outdated
+RUN --mount=target=.,rw \
+  --mount=target=/go/pkg/mod,type=cache \
+  --mount=from=go-mod-outdated,source=/usr/bin/go-mod-outdated,target=/usr/bin/go-mod-outdated \
+  go list -mod=mod -u -m -json all | go-mod-outdated -update -direct