Disable Kamaji default datastore check (#381)

Signed-off-by: Andrei Kvapil <kvapss@gmail.com>

Signed-off-by: Andrei Kvapil <kvapss@gmail.com>

packages/system/kamaji/images/kamaji/Dockerfile

@@ -1 +1,25 @@
-FROM clastix/kamaji:edge-24.9.2
+# Build the manager binary
+FROM golang:1.22 as builder
+
+ARG VERSION=edge-24.9.2
+ARG TARGETOS TARGETARCH
+
+WORKDIR /workspace
+
+RUN curl -sSL https://github.com/clastix/kamaji/archive/refs/tags/${VERSION}.tar.gz | tar -xzvf- --strip=1
+
+COPY patches /patches
+RUN git apply /patches/disable-datastore-check.diff
+
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=$TARGETARCH go build \
+    -ldflags "-X github.com/clastix/kamaji/internal.GitRepo=$GIT_REPO -X github.com/clastix/kamaji/internal.GitTag=$GIT_LAST_TAG -X github.com/clastix/kamaji/internal.GitCommit=$GIT_HEAD_COMMIT -X github.com/clastix/kamaji/internal.GitDirty=$GIT_MODIFIED -X github.com/clastix/kamaji/internal.BuildTime=$BUILD_DATE" \
+    -a -o kamaji main.go
+
+# Use distroless as minimal base image to package the manager binary
+# Refer to https://github.com/GoogleContainerTools/distroless for more details
+FROM gcr.io/distroless/static:nonroot
+WORKDIR /
+COPY --from=builder /workspace/kamaji .
+USER 65532:65532
+
+ENTRYPOINT ["/kamaji"]

packages/system/kamaji/images/kamaji/patches/disable-datastore-check.diff

@@ -0,0 +1,23 @@
+diff --git a/cmd/manager/cmd.go b/cmd/manager/cmd.go
+index 9a24d4e..a03a4e0 100644
+--- a/cmd/manager/cmd.go
++++ b/cmd/manager/cmd.go
+@@ -31,7 +31,6 @@ import (
+ 	"github.com/clastix/kamaji/controllers/soot"
+ 	"github.com/clastix/kamaji/internal"
+ 	"github.com/clastix/kamaji/internal/builders/controlplane"
+-	datastoreutils "github.com/clastix/kamaji/internal/datastore/utils"
+ 	"github.com/clastix/kamaji/internal/webhook"
+ 	"github.com/clastix/kamaji/internal/webhook/handlers"
+ 	"github.com/clastix/kamaji/internal/webhook/routes"
+@@ -80,10 +79,6 @@ func NewCmd(scheme *runtime.Scheme) *cobra.Command {
+ 				return fmt.Errorf("unable to read webhook CA: %w", err)
+ 			}
+ 
+-			if err = datastoreutils.CheckExists(ctx, scheme, datastore); err != nil {
+-				return err
+-			}
+-
+ 			if controllerReconcileTimeout.Seconds() == 0 {
+ 				return fmt.Errorf("the controller reconcile timeout must be greater than zero")
+ 			}