vendor files

vendor/k8s.io/kubernetes/pkg/capabilities/BUILD

@@ -0,0 +1,36 @@
+package(default_visibility = ["//visibility:public"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+    "go_test",
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "capabilities.go",
+        "doc.go",
+    ],
+    importpath = "k8s.io/kubernetes/pkg/capabilities",
+)
+
+go_test(
+    name = "go_default_test",
+    srcs = ["capabilities_test.go"],
+    importpath = "k8s.io/kubernetes/pkg/capabilities",
+    library = ":go_default_library",
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+)

vendor/k8s.io/kubernetes/pkg/capabilities/capabilities.go

@@ -0,0 +1,95 @@
+/*
+Copyright 2014 The Kubernetes 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 capabilities
+
+import (
+	"sync"
+)
+
+// Capabilities defines the set of capabilities available within the system.
+// For now these are global.  Eventually they may be per-user
+type Capabilities struct {
+	AllowPrivileged bool
+
+	// Pod sources from which to allow privileged capabilities like host networking, sharing the host
+	// IPC namespace, and sharing the host PID namespace.
+	PrivilegedSources PrivilegedSources
+
+	// PerConnectionBandwidthLimitBytesPerSec limits the throughput of each connection (currently only used for proxy, exec, attach)
+	PerConnectionBandwidthLimitBytesPerSec int64
+}
+
+// PrivilegedSources defines the pod sources allowed to make privileged requests for certain types
+// of capabilities like host networking, sharing the host IPC namespace, and sharing the host PID namespace.
+type PrivilegedSources struct {
+	// List of pod sources for which using host network is allowed.
+	HostNetworkSources []string
+
+	// List of pod sources for which using host pid namespace is allowed.
+	HostPIDSources []string
+
+	// List of pod sources for which using host ipc is allowed.
+	HostIPCSources []string
+}
+
+var capInstance struct {
+	once         sync.Once
+	lock         sync.Mutex
+	capabilities *Capabilities
+}
+
+// Initialize the capability set.  This can only be done once per binary, subsequent calls are ignored.
+func Initialize(c Capabilities) {
+	// Only do this once
+	capInstance.once.Do(func() {
+		capInstance.capabilities = &c
+	})
+}
+
+// Setup the capability set.  It wraps Initialize for improving usability.
+func Setup(allowPrivileged bool, privilegedSources PrivilegedSources, perConnectionBytesPerSec int64) {
+	Initialize(Capabilities{
+		AllowPrivileged:                        allowPrivileged,
+		PrivilegedSources:                      privilegedSources,
+		PerConnectionBandwidthLimitBytesPerSec: perConnectionBytesPerSec,
+	})
+}
+
+// SetForTests sets capabilities for tests.  Convenience method for testing.  This should only be called from tests.
+func SetForTests(c Capabilities) {
+	capInstance.lock.Lock()
+	defer capInstance.lock.Unlock()
+	capInstance.capabilities = &c
+}
+
+// Returns a read-only copy of the system capabilities.
+func Get() Capabilities {
+	capInstance.lock.Lock()
+	defer capInstance.lock.Unlock()
+	// This check prevents clobbering of capabilities that might've been set via SetForTests
+	if capInstance.capabilities == nil {
+		Initialize(Capabilities{
+			AllowPrivileged: false,
+			PrivilegedSources: PrivilegedSources{
+				HostNetworkSources: []string{},
+				HostPIDSources:     []string{},
+				HostIPCSources:     []string{},
+			},
+		})
+	}
+	return *capInstance.capabilities
+}

vendor/k8s.io/kubernetes/pkg/capabilities/capabilities_test.go

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+/*
+Copyright 2014 The Kubernetes 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 capabilities
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestGet(t *testing.T) {
+	defaultCap := Capabilities{
+		AllowPrivileged: false,
+		PrivilegedSources: PrivilegedSources{
+			HostNetworkSources: []string{},
+			HostPIDSources:     []string{},
+			HostIPCSources:     []string{},
+		},
+	}
+
+	res := Get()
+	if !reflect.DeepEqual(defaultCap, res) {
+		t.Fatalf("expected Capabilities: %#v, got a non-default: %#v", defaultCap, res)
+	}
+
+	cap := Capabilities{
+		PrivilegedSources: PrivilegedSources{
+			HostNetworkSources: []string{"A", "B"},
+		},
+	}
+	SetForTests(cap)
+
+	res = Get()
+	if !reflect.DeepEqual(cap, res) {
+		t.Fatalf("expected Capabilities: %#v , got a different: %#v", cap, res)
+	}
+}

vendor/k8s.io/kubernetes/pkg/capabilities/doc.go

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+/*
+Copyright 2014 The Kubernetes 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 capabilities manages system level capabilities
+package capabilities // import "k8s.io/kubernetes/pkg/capabilities"