John Howard <******@****.***> 1714011366 -0700

## Sidecar Mode Implementation Details

Istio CNI injection is currently based on the same Pod annotations used in init-container/inject mode.

### Selection API

- plugin config "exclude namespaces" applies first
- ambient is enabled if:
    - namespace label "istio.io/dataplane-mode" == "ambient", and/or pod label "istio.io/dataplane-mode" == "ambient"

	"sync"
	"text/tabwriter"
	"time"

	"github.com/hashicorp/go-multierror"
	"github.com/spf13/cobra"
	"k8s.io/apimachinery/pkg/api/errors"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/types"
	gateway "sigs.k8s.io/gateway-api/apis/v1"
	"sigs.k8s.io/yaml"

	"istio.io/api/label"
	"istio.io/istio/istioctl/pkg/cli"
	"istio.io/istio/pilot/pkg/model/kstatus"
	"istio.io/istio/pkg/config/constants"

// See the License for the specific language governing permissions and
// limitations under the License.

package util

import (
	"testing"

	corev1 "k8s.io/api/core/v1"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"

	"istio.io/api/annotation"
	"istio.io/istio/pkg/config/constants"
	"istio.io/istio/pkg/test/util/assert"
)

func TestGetPodIPIfPodIPPresent(t *testing.T) {
	pod := &corev1.Pod{

if ! kubectl kustomize "github.com/kubernetes-sigs/gateway-api/config/crd/experimental?ref=${GATEWAY_VERSION}" >> "${API_TMP}/gateway-api-crd.yaml"; then
  fail "Unable to generate the CRDs for ${GATEWAY_VERSION}. Not updating the CRD file.";
fi

rm -f "${ROOTDIR}/tests/integration/pilot/testdata/gateway-api-crd.yaml"

Most notably, this is only L4 resources.

Most of the API is fairly straight forward.
However, one interesting aspect is how these policies associate with workloads.
Istio's AuthorizationPolicy has label selectors.
However, we intentionally do not send those as part of the Workload API, in order to keep the size low.

        in RFC3339 form and is in UTC. Populated by the system. Read-only. Null for
        lists. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#metadata'
      jsonPath: .metadata.creationTimestamp
      name: Age
      type: date
    name: v1alpha1
    schema:
      openAPIV3Schema:
        properties:
          spec:

// limitations under the License.

package configdump

import (
	admin "github.com/envoyproxy/go-control-plane/envoy/admin/v3"
	exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
	"google.golang.org/protobuf/reflect/protoreflect"
	"google.golang.org/protobuf/reflect/protoregistry"
	"google.golang.org/protobuf/types/known/emptypb"

	"istio.io/istio/pkg/util/protomarshal"
)

default            sleep-7656cf8794-lxcmx                               10.244.2.58 ambient-worker2       None                                HBONE
gateway-system     gateway-api-admission-server-85985d48ff-5jcvd        10.244.2.8  ambient-worker2       None                                TCP

// See the License for the specific language governing permissions and
// limitations under the License.

package ambient

import (
	"context"
	"strings"

	corev1 "k8s.io/api/core/v1"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"

	"istio.io/api/label"
	"istio.io/istio/pkg/config/constants"
	"istio.io/istio/pkg/kube"
)

func IsZtunnelPod(client kube.CLIClient, podName, podNamespace string) bool {