new(cmd): introduce the run and version commands

The run commnand starts the k8s-metacollector.
The version command prints the version and exits.

Signed-off-by: Aldo Lacuku <[email protected]>

cmd/collector/doc.go

@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2023 The Falco Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package collector implements the command line for the metacollector.
+package collector

cmd/collector/root.go

@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2023 The Falco Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package collector
+
+import (
+	"context"
+
+	"github.com/falcosecurity/k8s-metacollector/cmd/collector/run"
+	"github.com/falcosecurity/k8s-metacollector/cmd/collector/version"
+	"github.com/go-logr/logr"
+	"github.com/spf13/cobra"
+)
+
+// New returns the root command.
+func New(ctx context.Context, logger *logr.Logger) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:              "k8s-metacollector",
+		Short:            "Fetches the metadata from kubernetes API server and dispatches them to Falco instances",
+		SilenceErrors:    true,
+		SilenceUsage:     true,
+		TraverseChildren: true,
+	}
+
+	cmd.AddCommand(run.New(ctx, logger))
+	cmd.AddCommand(version.New())
+	return cmd
+}

cmd/collector/run/doc.go

@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2023 The Falco Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package run implement the run command.
+package run